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Media player for third world countries

I have written during past 6 years that development countries need some sort of cheap media players. There are plans for cheap internet, but only perhaps one phone with net connection (or one cell phone at all) is possible in third world families. But content (games, information, audio and video) does not need internet, memory card is enough. Earlier 2000s were “MP4 players”, media players, but cheap phones succeeded them. Media players do net need internet connection that costs money. In China MP4 players are made still, but they are somewhat outdated using about 10 year old technology. Normal cheap smartphone is actually useful media player without internet connection and no subscription line connection.
But perhaps specific media player can be made, as cheap as possible, mass manufactured in millions of units. All members of family in thirds world countries, including children, can have cheap media player, not just one cell phone per family, and in most cases subscription line / net connection is, although cheap, so costly to them that they cannot have cell phone anyway.
Specific media player can be build using cheap phone SoC, but it uses subscription line and internet only if it is paid, user can choose if he/she pays for line/net or not, if not, the “phone” is just media player. Analog radio is in most phones nowdays, but also if country has analog TV transmissions, analog TV is needed also in media player. Some chinese phones have analog TV also, with antenna in phone.
Also digital internet TV transmissions and internet radio can be used, in multicasting system where only one frequency is used in transmission, no individual “cells” like in cell phone. So this system is just one-way television- and radio channels that use digital signals. But the media player is only receiver like TV set or radio, it cannot send any information like phone, if the phone function of the device is not used. So multiple channels of TV and radio can be transmitted, but instead of “cell” of phone everybody who has phone or media player receives those same signals, in same frequency, one frequency per channel, not individual “cell” frequency like cell phone. So it is just digital TV and radio transmission through air. TV and radio channels can be advertisement paid like commercial radio- and TV-channels are today, they show commercials and pay their costs that way and are free to those who watch TV or listen to radio.
Also written information information can be transmitted in written text form, like old analog text-TV but modern version of it, news etc. in written text form.
So media player is like pocket size portable TV / radio combination, but it can be used to play video and audio in memory card too, there is some cheap smartphone SoC inside so games and programs that Android phones have can be used too, and perhaps cheap camera and microphone / speaker too in device so pictures can be taken and sound messages recorded and listened. Memory card is the way to store and use information and device has small amount of internal memory too.
CD / DVD player can be used too, it is either connected to media player when player s screen is used to show videos, or CD / DVD player is integrated to pocket-size media player, one side has CD / DVD player, other side has screen, Cheap “walkman” -style CD players that are available either with CD or DVD player machinery inside (at same cheap price) can be used as components. No CD player is needed, DVD disc just has black screen or test picture at minimal bitrate when audio tracks are played, so only DVD disc is needed for both audio (music distribution) and video.

Typical cell phone tower has limited range because phone needs to send signals to tower, cell phone tower can have larger range if it only sends information, not receives it. Ranges can be 50 - 70 km in open country and 5 - 8 km in urban or hilly area. GSM has 35 km maximum range. Again those ranges are because cell phone must send information to cell phone tower, not just receive it.
But how about service that only sends information through cell phone network or Wifi network, and is not connected to receiving devices any way? So receiving devices just “listen” Wifi or cell phone transmissions and do not sent anything back. It will be like TV or radio transmissions in Wifi or cell phone network. Idea is that people must pay for subscription line for Wifi connection or cell phone. But how about service that can be used without subscription line?
In third world countries people have no money to pay subscription line for every person, it is possible that in family one person (father) has cell phone, but family has wife and children too. And there are billions of people who have no money to pay even that cheap subscription line that is available in third world countries. In some countries (Africa etc.) internet connection is in some countries much more expensive than in western countries.
So service without payment, which is similar to radio broadcast, (listening to radio is payment free in all countries, I think) is needed. If portable media player that is like cell phone (because it is slightly modified cell phone) is made and it uses Wifi (in China is made Wifi phones) or cell phone network to receive internet TV channels and radio channels, and other kind of information also. For example free computer programs for Android phones, free Android apps, useful free utility programs, free games, and netpages rolling in media player screen (viewer can choose if he/she wants to look them or not, if not this function is switched off) like adverts in public displays. Also text information like free e-books and educational texts and news can be received. And there can be “public message board” where people can send messages, but unlike normal e-post, those messages can be read in all portable media players in that cell phone tower area.
So this is expanded version of old “teletext” that was used in analog TV transmissions from 1974 onwards. There can be weekly, monthly or daily timetable so that people can see if there is interesting content coming and what time it is send, portable media player can be programmed like video recorder to catch interesting transmissions, even in nighttime when people are sleeping (if nighttime transmission is possible economically).
The information send can be for example 10 internet TV channels and 10 internet radio channels in maximum, but bandwith of some those channels are used to sending software for Android phones- style media players and text information like e-books, there can be constant flow of free e-books (public domain) and when timetable shows that some interesting e-book is to be transmitted portable media player receives it when it is send. The “internet” TV channels that portable media players receive can show public domain movies etc. This is similar to ordinary TV and radio channels, only that distribution is through Wifi or cell phone network. Data compression can be used in maximum in video or audio channels, and text can be compressed also.
Tv and radio channels can be paid using commercial TV and radio stations, their content is paid by adverts. So this is regular commercial TV and radio transmission, through Wifi and cell phone network. It is then 10 “internet” TV channels and 10 audio channels or their equivalent of amount data (software programs and text) send from cell phone tower or from Wifi link. But instead of every phone having individual “slot”, all portable media player uses same frequency “slots” in that cell phone tower area, and transmission is one way only, portable media players do not contact cell phone towers. So it is like 10 phones open to internet video transmission and 10 phones open to audio transmission in all time, except during nights (if transmission is not send during nights). But because there is so lot of cell phones operating in each cell phone tower area, the cost of this one way transmission is very small compared to all cell phone traffic that is happening, many hundreds or thousands cell phones and Wifi customers in urban area. So cost of this transmission system is very small. But still it can cover most of services that internet does. But only one way transmission is possible. To have normal two-way communication like phone or internet subscription line must be paid.
Although it is possible that internet becomes cheaper in third world countries, it is possible that it never becomes free to end user (even with maximum use of adverts to cover costs), and if free version of internet is possible in third world it is possible that it will be very restricted version of that internet which is subscription line paid. So there is need for modern version of commercial TV / radio transmission system that not only sends TV and radio programs, it can also send text, e-books, one-way messages, and free Android software (free games and apps). Commercial here means that service is paid by advertisements like commercial TV stations and radio stations use adverts to pay their costs. This would be modern digital version of analog “teletext”. It must be cost free to end user (who has this Android phone style “portable media player”, which becomes full Android phone when subscription line is paid. Inside media player is cheap Android phone SoC and some modifications that enables the phone to be used as media player receiver). Because every media player receiver in cell phone tower area receives same channels, it means that one advert is transmitted to all media players, several hundreds or thousands in that area, they have all same “slot”, when in normal net connection that advert goes to just one phone in its own individual “slot”.
The portable media player is Android phone, with slight modifications, either normal or Wifi phone, made of cheapest possible components. SoC can vary, so it can have different capacity CPUs with quad core octacore etc. and so different price media players can be build from super cheap few dollars only type to more expensive and customer decides which he/she can afford.
Analog radio is in most phones nowadays. If it is not possible to use cell phone network or Wifi network to have one way transmission (only very slight modification is needed to make it possible, or no modification at all in cell phone / Wifi systems), another possibility is to use digital TV network and digital radio network. Even in some poorest countries in the world have digi-TV, some have digital radio. Then portable media player has analog or digital radio and digital TV receiver, but still perhaps cheap Android phone SoC. Then all those text, e-book, and Android software must be send through digital TV or digital radio network. This media player has then digi-TV receiver inbuild and perhaps digital radio receiver also. But TV and radio channels must be free, if digi-TV is paid service it makes no sense to use it when cost free media content is needed here. Switching from paid digi-TV service to commercial advertisement paid digi-TV can solve this problem. digi-TV has bitrates from 5 megabits sec. data rate onward, but one test in Australia shows that transmitted picture received in TV has bitrates varying from 1,5 megabits / sec. to about 10 Mbits / sec. 1,5 megabits is less than 200 kilobytes only, so data rate is really low in digi-TV in some channels in some countries, so not much for example Android software is possible to send using such low bitrate and this digi-TV channel.
Analog TV can be build inside phone, in China phones with analog TV receiver are manufactured, together with antenna in the phone. If analog radio and analog TV are only possibility to have free content, then analog teletext is only possibility to have text information for free. Some kind of modernized analog teletext can be made that receives textual information, news etc. in low transmission rate that teletext uses, perhaps even in data compressed form (rows of text/graphic symbols that teletext uses are compressed using Huffman coding and text encoding etc.) that is decompressed in portable media player phone. This minimal portable media player is then build with analog radio, analog TV receiver and Android SoC, it can still use memory cards for Android apps, games and software programs. Also DVD-ROM discs can be used for software distribution, if cheap few dollar DVD player “Discman” style is used with data port (not “Walkman”, it is cassette player) , either as separate device or inbuild to portable media player. Films and music can be distributed using DVD player and DVD disc only, no CD player needed for music, when playing music DVD video disc shows black picture or test picture at lowest possible video bitrate.
The portable media player / Android phone needs electricity. Human body heat can be used to charge batteries, or cheap roll printed solar cell charger used. If body heat charger is used it don t, matter if sun does not shine. Also small LED lamp or other type lamp can be with portable media player / Android phone, so that in darkness is light if needed. Lamp can have small few meter wire and not just some lamp inside media player phone. “KAIST thermoelectric charger uses body heat to charge smartphone”. “Your body is a big battery and scientists want to power gadgets with it”. Heat battery charger can also use camp fire etc. heat source not just body heat.
Memory card and DVD or DVD-ROM disc are suitable for distribution of information in portable media player / phone if internet is not used. I have written about this thing since 2015, free internet etc. So that in third world people would have at least some kind of free internet, but if internet without subscription line payment is not possible, or free internet, if it appears, is very restricted, this kind of one way receiver only information system is still needed. The few chinese MP4 players still sold are perhaps about 10 years old models and outdated but still in production, modern Android media player is needed in third world countries, as low cost as possible first but also higher cost media players are possible, and all those media players can use cheap Android phone SoC at few dollar cost, so that if user has money to pay subscription line he/she can simply start phone function in portable media player. Some CPUs sold are used in digital cameras, and those may have prices even below one dollar or so, if mass order from factory, so really cheap portable media players are possible with few dollars cost using cheapest possible components.
There are some sort of digi-TV dongles connected to USB port of phones, so that phone screen can be used for watching digital TV transmissions. So digi-TV electronics is not inside phone, it is separate apparatus outside phone. So perhaps ordinary cheap smartphone can be used as media player type mentioned above with this kind of dongle or USB stick-style outside apparatus. But because it is a portable media player and no subscription line costs are paid, the “phone” (media player) can be made to be really cheap, few dollars only, device, if it is build from cheapest possible components. The smartphones, even cheapest ones, are not made to be such ultra-cheap because subscription line must be paid. But this dongle-type solution can be used also to transform ordinary phone to media player which uses for example digital TV and/or digital radio transmissions, or analog TV transmissions, if it is not possible to use cell phone technology or Wifi technology for any kind of one way only- communication system.
Analog teletext from analog TV transmission has really low data rate, but basic analog teletext has been improved for example in France etc. If digital one way transmission without payment is not possible using mobile phone network, Wifi, digital TV network or digital radio network, perhaps analog TV teletext is only solution, but if it is behind paywall also even it cannot be used. But even e-books and other textual information, news etc. can be send through teletext- or improved teletext- type analog TV system. But there should be possible some kind of digital transmission system that uses existing networks, Wifi, mobile phone network, Digital TV and digital radio, and which is not behind paywall. Commercial broadcasting in TV and radio has used adverts for ages to pay transmission costs, and analog radio is not behind paywall, so why not making cheap one way transmission system that uses Wifi network or mobile phone network, and digi TV / radio. This service is paid by adverts during transmission like any other commercial communications service. Cost of individual transmission that is needed in internet or in mobile phone network is not needed, when information is send at same time to all receiving devices in the area, so only one frequency slot is needed for thousands of people receiving information. The cost of operation is like one individual phone frequency slot but advertisement money per this channel is 1000-fold if instead of one phone advert goes to 1000 portable media player / phones. So it is easy to arrange cost free mobile phone network / Wifi network one way transmission in third world countries. It is not two-way transmission like internet but it is payment free service. Digital TV and radio can have similar free data transmission system in third world countries, if digi-TV and -radio are not behind paywall there.
Also not only lamp but cheap video glasses can be used with cheap media player. In China is / was made cheap few dollar video glasses. So instead of device screen, video can be seen through cheap video glasses. There was Google cardboard 3D glasses that used phone screen itself as 3D glasses, cheap foldable plastic frame that is like Google cardboard 3D glasses can be made and this can be with media player. There is also technique “Deep learning enables real-time 3D holograms on smartphone”. Also of course cheap headphones can be used with portable media player.
The video - or audio quality is not so important, main point is that service is free and not behind paywall, data compression can be used, up to maximum, and text compression also. Also there is no need to pay license payments for video and audio codecs, there are video and audio codecs that are under license but payment free, and those free codecs are sometimes even better quality than those paid video and audio codecs. Those free codecs should be in hardware (circuits), not only in software. If they are not already in hardware that should be done. There are simple lossless audio codecs Slac and Sela, sort of simplified FLAC. Opus free audio codec is using lossless FLAC and then lossy codecs, but I don t know is Opus in any hardware circuit. Perhaps Slac or Sela can be used in some DVD disc or memory card audio system, although it is not standard. Blu ray disc has 128 GB capacity in multi layer disc (which nobody uses) and 256 GB in two sided disc. DVD discs are super cheap already, production costs are few pennies / cents per disc when ordered in large numbers from factory, and even cheaper way is “EcoDisc”, simplified DVD manufacturing. Blu ray discs cost no more than DVD discs to be made. If multilayer BD-ROM computer data store discs (not much or not at all made anymore) would be ordered in large scale order from factory, really cheap 256 gigabyte data store instead of memory card is possible. But it will need cheap Blu-ray / data store BD-ROM player. Perhaps “Discman” style really cheap Blu-ray player can be made, and that player can be used as mass memory of portable media player, with BD-ROM discs. Also video quality of Blu-ray disc is better than DVD. The interest in Blu-ray as data memory has waned as memory cards took over, but BD-ROM still has price advantage up to 256 GB if people would use them in mass scale like memory cards. In third world countries price of this portable Blu-ray “Discman” must be really cheap, but mass manufactured similar CD / DVD players are already only few dollar priced so cheap mass manufactured BD-ROM player can in same price class. Blu-ray video standard probably uses license paid video codec so payment free video codec is needed for really cheap device, but those payment free codecs exist. The “Discman” player needs no display screen, it is in the portable media player, and portable media player perhaps can hold most of the electronics too (video/audio codecs) needed in Blu-ray / BD-ROM player. Two-layer “EcoDisc” DVD manufacturing was possible, or at least in prototype form, and perhaps “EcoDisc” Blu-ray can be made too, although manufacturing costs of both types of discs are quite minimal already. If memory cards are too expensive when really cheap mass memory is needed in third world countries in cheap portable media players. But those media players can still use memory cards. Roll to roll printing techniques makes possible really cheap mass production of things, almost only piece of really cheap mobile phone / portable media player that cannot be made by cheap roll printing is CPU/SoC itself.

About portable media player for third world countries: there is wristwatch-size cell phones made in China, or they were made at least some time ago. Portable media player can also be made to be small wristwatch size thing. It has memory card and some kind of CPU or cell phone SoC, but mobile internet functions are not used, or used only as a receiver. Even without proper CPU that media player can be used to play audio and video and to display text (e-books etc.). Without radio frequency receiver it is like modernized old “MP4” player. Price should be really cheap then. With CPU or cheap cell phone SoC price is little higher but still very cheap. It must be cheap enough so that people in third world who have no money buy mobile phone subscription line, even cheapest mobile phone line that is sold in third world countries, they can buy at least cheap portable media player which can play video and audio (and text information). If the device is wristwatch type small thing also its display size is small. So cheap video glasses are needed if video is watched. Also headphone connection is needed. If media player is small wristwatch type, battery can be charged using body heat, body heat battery charger. Wristband can then be battery charger.
There were “personal digital assistant” (PDA) type devices, and portable media players, both without mobile internet connection or phone functions. But smartphones made them oldfashioned. Smartphone is like PDA and media player combined, with phone/mobile internet capability. Bad thing about mobile phones is that they need subscription line payments. So for people in third world countries that have no money to pay mobile phone line connection modern PDA/media player is needed. Ordinary cheap smartphone without subscription line will do in first place. Smartphones have useful apps, thousands of them, many of them free. Some of them don t basically require net connection, but use them anyway for advertisement and data monitor purposes. Similar free apps are needed in PDA/media player also, without internet connection, and versions of them with similar functionality that don t require adverts from internet, because there is no internet connection in that device. Linux has lots of freeware programs, some sort of similar community-made free apps for Android PDA/media player could be used also. Mobile version of Linux is another possibility, for apps for PDA/media player. And although ordinary cheap smartphone without subscription line will work as PDA/media player, it is possible to make PDA/media player from cheap smartphone SoC that only “listens” internet or Wifi network and does not send anything. So it is sort of internet / Wifi radio/television that can receive text and software programs also. Mobile subscription line might be cheaper in the future in the third world, but not wholly free anyway, and in the case of free internet in third world perhaps only one member of family has mobile net connection, other members of the family can have their own PDA/media player type devices that don t require net connection. PDA will need some kind of CPU but early PDAs had really primitive CPUs, and some functions like calculator, calendar, diary, to-do worklist etc. in device don t even need CPU, so some kind of ultra-cheap PDA/media player can be done even without CPU. So not only media player functions but usual PDA functions, with lots of free apps like smartphones have, and those apps don t need internet connection, can be in device that is cheap PDA/media player, which is actually cheap Android phone with slight modification without subscription line connection. And free games etc. software programs that don t require internet connection.
Although ordinary cheap Android phone will do, specially made super-cheap version of Android phone that is optimized for this kind of PDA/media player/game console hybrid can be done, it can be used as cheap Android phone if subscription line is used, otherwise it is PDA/media player. Ordinary cheap Android phone SoC can be used. But the device itself is designed from the beginning to be as cheap as possible PDA/media player/game console, with mobile phone/internet functionality if mobile phone line is paid.

Those mobile phone- sized or wristwatch-sized PDA/media player/game console combinations can be sold millions and millions of units mass production in third world countries, there is several billions of people market for them.
Cheap battery charger using body heat or cheap roll printed solar panel can be used as battery charger, so in areas where is no electric lines this device can be used.

About cheap PDA/media player/game console for third world countries: this device can be accompanied by small “discman” type DVD video/DVD-ROM player. So DVD disc can include software. And DVD disc can play audio too (in combined audio/video stream), no need for CD player.
Possible is that even small and cheap discman-type Blu ray player can be made, and it can use cheap Blu ray/BD-ROM discs that can have software for Android/Linux portable media player.
Disc size can be smaller than 12 cm, if there is no need for full data capacity of single layer DVD disc. 8 cm and 6 cm discs can be used, and in Blu ray discs too. Not because price of disc, DVD and Blu ray disc manufacturing is super cheap already, but because of volume/transport reasons. 6 cm disc instead of 12 cm has about 1/4th of volume, and if EcoDisc manufacturing is used which makes thin DVD discs, then 6 cm disc is about 1/8th of weight of normal 12 cm disc. So in third world countries distribution of those small and light discs is economical. Simple cardboard or paper sleeves can be used in discs, simple and cheap, in Japan CDs were sold with paper sleeves. One possibility is that MicroSD card is put inside cardboard sleeve that has DVD-ROM or BD-ROM disc, if additional information space is needed, but DVD and Blu ray discs are so cheap to make that it is cheaper to make those optical discs than memory cards with same capacity, direct buy from factory.

About previous post, DVD video or Blu ray video discs as alternative to CD for music distribution, one way is that in CD package is Cd disc and then MicroSD card if some extra capacity is needed for example multichannel mix, or one CD disc is not enough. One solution is that in simple cardboard sleeve of CD is not CD disc inside but MicroSD card. But DVD / DVD ROM and BD ROM discs are so cheap to make that they are cheaper than memory card, at least Blu ray disc, multilayer, manufactured in millions so they are cheap in mass production. And EcoDisc manufacturing of CDs and DVDs make it simpler still.
There are very cheap microprocessors, for example C.H.I.P computer used cheap CPU that is used in industrial control of machines or in slightly different version in digital cameras. Price is about one dollar or less for that CPU. Intel Quark and Edison were examples of other simple similar things, but perhaps overpriced for their capacity so not successful? Those chips should be in microcontroller price range, so below dollar in large factory order.
When in third world cheap things are needed, those can be used, for example in “smartwatch” type wristwatch that is like smartwatch but has no internet connection. Intel Quark can perhaps use old desktop PC software and old Windows operating system, so wristwatch can play old PC software only slightly altered, games etc. PC software. Cheap video glasses are then needed which can be connected to smartwatch.
Also things like cheap TV sets can have cheap smartphone/tablet SoC within, no net / phone connection needed, phone/tablet SoC just turns cheap TV to smart TV. Or smartphone / tablet SoC is used as internet receiver, receiving internet TV and internet radio channels, if those channels are free of payments, in cheap TV sets.
“Linux stick” are computers in USB stick.
Price should be low if cheap few dollar phone/tablet SoC is used, not in phone or in tablet PC but for something other electronics. And price of those simpler CPUs is even less. Because their price is low those cheap smartphone / tablet SoCs (net or phone connection is not needed and is not used) and other CPUs can be in almost every electronic device, and because their price is low they are suitable for products that are used in third world countries.
Those phone SoCs and other things like Intel Edison have Bluetooth and other Internet of Things connection systems. Perhaps IoT protocols, if they offer cheaper connection than regular internet, can be used to make cheap internet in third world countries, limited bandwidth and data rate but so cheap that it can be paid using adverts, so free to consumers there. One other possibility is “smartphone ad hoc network” that don t need infrastructure for connection, and it is free of cost unlike internet. But connection distance is only few dozen meters in some high data rate systems. Both IoT connection and smartphone ad hoc network can be used to make cost free connection system in third world.
Cheap phone SoCs or CPUs can be for example in children s electronic toys, and also in cheap game consoles as host device for software, and in cheap hand held music workstation. Although there can be cheap portable media player that can be hybrid of PDA / media player / game console, dedicated game consoles used as software host and optimized for gaming (Valve Steam Deck style etc.) and small music workstations optimized for musicmaking and used as software host (something like Zont, Zoom Arq, KDJ-One, Nanoloop, Ellitone E64, Yanko Design granular synth, Noise Machine portable midi controller, Trinity hand held synth, Pribore MDP101, Artiphon Orba, iMPC Pro). But price must be cheap. Also perhaps dedicated pocket calculator with CPU and e-book reader can be done, with few dollar cost. Even hot water kettles or coffee machines can perhaps use cheap CPU for something. Or actually anything that has electronics can use very cheap CPUs.
Full PCs are expensive, so cheap electronics that use cheap CPUs is needed in third world countries.
Also cheap mini PC with as small as possible price, but they need x86 type chips so price of CPU is the dominating factor, although cheap few dollar x86 chips with some computing power exists.
Solar panels and battery chargers using heat (body heat etc.) can be used so electric network is not needed.
There is hypertext project Xanadu and its ZigZag and GZIgZag routing system, and tumbler number format. Perhaps similar can be used in ad hoc smartphone network, in communication without internet connection, routing messages and using this Xanadu hypertext format, if it has some advantage.

From China can be bought really cheap graphics cards and FPGAs, GPU prices are few dollars in some products, and chinese FPGAs also, and XMOS announced word s cheapest artificial intelligence chip, from one dollar price. So CPU, GPU, FPGA and AI chip can all four be together in some really cheap product(s) aimed for third world market. FPGA increases CPU computing efficiency, and for example music synths can be made in FPGA. Cheap game console was mentioned in previous post, it can be one example of product that has CPU, GPU and AI chip. Other consumer products, like cheap TV sets with perhaps roll printed displays, e-book readers, and personal digital assistant / media players can all use those cheap CPUs / smartphone SoCs (without paid internet connection, or device just “listens” internet, receiving internet-TV and internet-radio channels), and with phone / tablet SoC device can use Bluetooth and/or mobile phone ad hoc network for some kind of network communication. Cheap video glasses are also needed. Various combinations of CPU / SoC, GPU, FPGA and AI chip can be used, together or alone. All those chips are at cheap few dollar price range in their cheapest versions.

Not only purpose build cheap media players can be made, old phones which are sold at few euro prices or discarded because they are becoming old, can have new life as cheap media players in third world countries. The life cycle of smartphone is fast, every two years or so phone is changed to new one. If those millions of phones would go to third world countries, not as electronic waste, but as free or almost free media players, they can have a new life. Without internet connection old smartphones are cheap media players. Nobody wants to use old phones anyway in the west, but in third world they can be super cheap media players. For example Windows Phone OS phones etc., nobody uses them so millions of those can go to third world as media players, not as mobile phones. The operating system etc. or how old the phone is, is not so important if phone is used mainly for watching videos, listening to audio, use phone as FM radio, or taking pictures. And old software apps that those phones have are still usable, if they can be used without internet connection. One solution is that if mobile app needs net connection because it uses adverts for funding the app, phone does not use internet but adverts and apps are loaded beforehand in the phone, and because apps are used offline there is adverts in phone that are seen on the screen or heard in the audio system of the phone at regular intervals, those adverts give funding to the apps although internet is not used. So phone that is given free or almost free as media player in third world also has working apps that work without internet when they have adverts included in the phone s memory. If apps are changed in phone that is used as media player only, changing memory card in phone etc., also new adverts go with the new apps and earlier adverts are removed.
Not only old smartphones, old tablet PCs and laptops can also be shipped to third world countries and used as PC, but without internet connection, to those people who have no money to pay internet connection / subscription line costs.
Also old desktop PCs are possible to send there, but what are ferrying costs of such heavy and large things and is it sensible to ship old PCs to third world or not, I don t know, without internet connection. Linux or old Windows is then OS. All those, smartphones, tablets, laptops, perhaps desktop PCs also, that otherwise go for few euros price in the west because they are old, or for free, can be shipped to third world and used there, without costly internet connection.
Although smartphone media player is used offline, it has adverts that appear in similar vein and density as in normal phone who has internet connection, when apps have inbuild adverts. Apps in media player phone can also be changed, removing and changing apps in phone s memory and changing memory card. This funding method of so called free apps can also be used in specially designed media players that are newbuild devices and not old smartphones, although those newbuild media players most probably contain cheap Android smartphone SoC.
It is even perhaps possible to pay subscription line of phone using only adverts, so that limited internet connection is possible, but only limited internet, no normal phone voice and text message communication. So then internet phone systems like Skype must be used and e-post instead of phone text messages. So that will make free internet in third world possible. Nowdays cheapest line costs of mobile phones are only few dollars per month in some limited internet deals in mobile phone network in third world countries. That few dollars per month can possibly be paid by increasing adverts that go to phone. There is enough advertisement money available to do that. In India special law had to be placed so that text message advertising campaigns could be limited to acceptable level. There was overwhelming amount of text message adverts so Indian government had to do something to it. So there is advertising money that can be used to pay limited subscription line of mobile phone network in third world countries. If user of phone must tolerate constant flow of adverts he/she has free (limited) subscription line, so advertisement paid, free mobile internet is possible.
In third world amount of advertising money that uses internet increases each year rapidly, and possibly already has risen above the level that it is enough to pay limited mobile internet subscription line cost.
The advantages and improvement of living conditions of cost free internet are enormous for people of third world. Access to education, government information and other information and medical services through internet. Limited cost free internet even without direct satellite phones, balloons or autonomous aeroplanes, which are planned to provide free internet.
To charge batteries cheap roll printed solar panels and roll printed heat to electricity chargers (Peltier element) that use body heat or other source can be used.
But still special media players are needed that work without internet connection, if only one person in each family has cheap mobile phone. Cost of mobile phones is not preventing factor, cheapest Android phones cost only few dollars now, that people in third world largely have no internet is because of subscription line costs, although they are relatively cheap, they are too much for billions of people.
So totally advertisement paid internet is needed there. It can be restricted internet with limited amount of data per month, but it can use data compression.
Not only mobile phone network, also Wifi network can be used (and Wifi phones instead of normal 3G or 4G mobile phones, cheap Wifi phones are made in China), if it is simpler and cheaper to use Wifi instead of mobile phone network in free internet in third world. Or even Internet of Things network with its limited amount of data but economical communication system. If there is IoT network in third world countries. Internet through IoT or Bluetooth etc. Long range Bluetooth dongles have been made, connected to phone. Or use partially decentralized network like mobile phone ad hoc network etc.
Those media players that have no internet connection can “listen” internet, be internet receivers, watching and listening internet TV channels and internet radio channels.
And when free internet in third world exists, or even before, things like food mailbox can be used. “The food mailbox - what it is?” is in Robin Hood Coop Forums netpage, but in bottom of message list, last updated march 2016 message. Not only food can be ordered to food mailbox, also clothes and other things that people buy using internet can be bought. But food is main concern in third world so food products probably are the main thing that is ordered to food mailbox, if such thing like food mailbox would exist in third world countries (food mailboxes in their simplest form are just ordinary standard transport containers, which are transported to faraway places like villages). If this concept of food and other things “mailbox” makes any sense.

Free mobile phone apps use adverts to pay them, and also some collect data from user and sell this to marketing firms, usual marketing analysis stuff that is sold to marketing firms. But what if apps are used only offline, like in media player that has no contact to internet, or only receivers internet information but won t send anything? Solution is that those apps have adverts inside so lack of net connection is no problem, adverts are shown like in normal app connected to internet when adverts are inbuild in the app. But how about missing marketing research data? That can be solved if when media player is sold to customer, he/she must answer marketing research questions, and when data about this customer is collected media player is sold to him/her. The customer can answer to marketing research questions about his/her family members too, so marketing research data can be collected from whole family.
If free mobile internet is the goal, then advertising money must be maximized so that it can pay subscription line (limited) internet cost. One way to maximize is that only one cheap smartphone with internet connection is sold per family, so that family head which is father has phone and then wife and children are left without. Logic is that instead of adverts going to just one person who owns the phone, now adverts are seen whole family wife and children too. Adverts are usually paid for that kind of basis that only one person sees them, the phone s owner, and payment to mobile phone line provider or app manufacturer is calculated to be based upon this fact. But now in only phone per family situation is certain that also wife and children see the advert. So one advert is seen by several people for sure. Then efficiency of advertising increases per advert, it multiplies the efficiency of one advert when instead of one person it is sure that several persons see it, for example father, mother and three children, now efficiency is 5 times than in normal mobile phone advertising through internet. This efficiency can be used to pay subscription line cost of mobile phone line or Wifi line, or long range Bluetooth line, or IoT line. This subscription line has no normal voice phone line or text message services, only (limited) internet, data compressed, so it is cheap and paid using adverts. So it is free internet in third world countries. There is now about 5 times more money per advert if one advert is seen by 5 persons not just one, so one advert equals to 5 adverts.
The family members who are not allowed to have internet connection because free internet must be paid somehow, and it is paid by adverts, and only way to pay free (limited) internet line is to maximize advertisement money per advert, can however have personal media players with data transferring capacity and memory card slots so that when data is transferred from father s phone to media player also adverts are transferred so that other family members see them. Or family members use father s phone and see adverts that way.
When media player s memory card is changed or reloaded or media player s memory reloaded and new apps and/or video / audio / software is loaded and old removed, new adverts go with new apps and video / audio / software. Also adverts that use only text can be used, no graphics or audio or video needed in some adverts.
When user of media player buys new memory card or loads new content to his/her phone, he/she must now again answer marketing research questions. Now marketing research data that otherwise uses phone to collect information is up to date with media player people too who have no internet connection.
This data that is collected from whole family, and adverts that are seen by whole family, are used to pay one subscription line of cheap (limited) internet connection. Now (limited) free internet in third world is possible, advertisement paid.
Advertising money per (limited) internet connection can be multiplied in factor of 5 this way. If family has more than three children it multiplies even more.
If there is only media players and no internet connection, new content must be loaded from somewhere. Government institutions like schools, state officials, state transport institutions like bus and railway stations, post offices, police stations, medical stations etc. can be such Information loading stations. Media players can have new information loaded from there. Also United Nations and charity organizations that work in third world, in their places too can have information loading capacity to media players. This in case that even limited free internet is not available. New information can also be send through internet if device only “listens” internet.

Another way to make internet connection that is advertisement paid: sharing one subscription line with many users. This happens when several smartphones share same subscription line. Mobile phones use sort of shared radio frequency system already, in mobile phone network, but this is sharing one subscription line. So first is usual one mobile phone line with its 3G or 4G network. But this one line is used by many phones, perhaps 300 phones, so although phone is 4G, its data speed is only 3G class if all phones are used at the same time. All messages that are send from 300 phones are in one mobile phone line in and all messages received by 300 phones are received by all phones. Messages and information must be send encrypted, and individual keys used in those 300 phones.
It must be in phone s software some kind of system that detects incoming information and looks at the encrypted data, and if the key in the information is not used by phone, software discards it and phone does not ring and information does not go to phone s memory. Only when key matches the same that is in the phone s memory phone rings and information is received in the phone s memory or voice line opens etc. Mobile phones perhaps already use something similar to this kind of system but it happens in phone s hardware, and it is part of normal mobile phone network procedure. But now when one subscription line is shared by over 100 phones additional encryption that is used in software must be used.
That advertisement paid internet can be used without normal voice line and text messages, instead it uses only internet, and voice over internet is used in voice line and text messages use internet also.
Advantage of this kind of shared subscription line is that all 300 phones can easily receive same information, if there is private key and then “common key” in phone s software. Common key is used by all 300 phones. Or information simply is not encrypted or it does not have a key, and when it is not encrypted and it does not have a key that means that information is for all phones together.
For example one advert is received by 300 phones, not just one, and cost of sending this one advert to 300 phones is the cost of sending this advert to just one phone. So cost ratio efficiency of advertising rises to 300 times more. Now that subscription line can be paid using advertising money, it pays subscription line cost, which is shared by 300 phones.
Also such things like internet TV and internet radio is easy to make when one subscription line has 300 smartphones, all sharing one line, not many individual lines like in normal internet TV or internet radio. So cost efficiency of internet TV and internet radio increases to 300 times compared to normal internet TV or internet radio.
If it is not possible to disconnect the alarm every time when message is received, and message goes to all 300 phones at same time because line is shared, if the alarm voice is directly in the hardware and no software cannot change it, alarm must be put to silent mode in the phone so that phone does not ring. That perhaps means that phone does not ring when there is message that is meant for this one phone among 300 phones, and only looking at the phone user sees if he/she has received message or not. But that is perhaps the way this shared line-system can work. When receiving message has encrypted key that does not match the key in the phone, software rejects that message and it does not go to phone s memory, or if it goes software wipes it out immediately. Only messages and information that has matching key in the software is stored in phone s memory.
Modifying existing smartphones slightly (their hardware) can solve many problems of this shared subscription line, or modification can be done only in software.
If one 4G line is shared with 300 users data rates are 300 times slower, so 4G line with 300 users is like those 300 users are using 3G network, so it becomes “virtual 3G network”. Because data rate is slow data compression must be used, in audio, video, still pictures, graphics and text.
One way is that data is not encrypted, it has only key, and when there is no matching key in phone s software those messages are discarded or if received in memory immediately wiped out anyway, but if information is not encrypted it may give concern of privacy things. But it is possible that information and messages are not encrypted in shared line network if discarding and wiping out information when there is no matching key works properly.
This shared line model makes possible that in third world cost free internet (advertisement paid) can be put to use. Without special satellites, automatic airplanes or balloons.
This free internet must also be restricted and limited version of normal internet, so that teleoperators have enough customers that are willing to pay for subscription line. So that those that really have no money to pay will have subscription line cost free version, and those that have money will willingly choose paid version. Lots of restrictions then in free internet, all possible filters that filter violent or pornographic content etc. must me in maximum in free version of internet. Also all kinds of data rate etc. restrictions used. This is done so that only those that have no money to pay will choose cost free limited version of internet, and teleoperators will have about same amount of paying customers that they have today, only those billions of people that nowdays have no money to pay for internet connection, will have it, in restricted version, but it is free.
Cost of smartphones is so low, few dollars in their cheapest versions, that those poor people can buy cheap smartphone, and phone will become even cheaper if it is specially build to be as cheap as possible, for example no separate battery needed, in phone s plastic casing is empty space and battery chemicals and materials simply put in and then closed with plastic, now battery is integral part of the phone. Cheap roll printed solar panel or battery heat charger (roll printed Peltier element) will charge batteries, no electric network needed. Cheap lamp can be build in phone or separate lamp sold as additional feature, with wire that is connected to phone, lamp uses phone s battery. So that there is light in the darkness. Operating system of phone can be Android (version designed for low-capacity smartphones) or Linux version which can use Android apps.
Specially build media players that do not use internet connection can still be build, they are like smartphones with phone / internet functions switched off, or that device just “listens” internet.
Data dividing procedures must be used if for example 300 people speak in one phone subscription line at the same time, now one 4G network subscription line is shared with 300 users that are using voice line. Or some of them may download videos etc. So data rate divide procedure must be used that shares this one 4G subscription line between 100-300 users (or less).
Smartphone that can share one subscription line with about 100 users perhaps can be made from ordinary smartphone, only software of the phone is changed, so system that uses individual keys in each phone, and although information is received in each of about 100 phones only the one that has right key has access to that information. This can perhaps be made to work in software solution. So no hardware is need to be changed. Information must be divided to chunks of data when 100 or more or less users use same subscription line, but perhaps this too can be made in software solution. So perhaps only software in phone (and perhaps in mobile phone network tower) must be changed.
Or if software solution is not possible, cheap integrated circuit chip can be inside phone beside phone SoC, and in cell phone tower perhaps additional IC chip also. Cheap signal processing chips aimed for mobile phone cell tower network / Wifi router are available, for example Kalray etc. If software solution is not enough.
Also Wifi phone and Wifi network can be used, not mobile phone 4G or 3G network.
3G network can also use one subscription line divided between many users - principle, it then becomes “virtual 2G network” with perhaps 10 users in one subscription line.
If the divided data rate in one subscription line leads for example sometimes one second length loss of signal in voice over internet calls or second or more loss of video signal in video transmission sometimes, that is not a problem, that is acceptable in free internet. Those who want better quality transmission should buy normal subscription line. If data division is not-so-well working in shared subscription line it can in fact be good thing, it drives those people who have money to buy, buy normal subscription line instead of free and shared line. Data compression must be used, if data rate per user is only few dozen kilobits per second in “virtual 2G network” data compression must be at maximum and netpages etc. rendered to very simple graphics or simply only text-based. Audio must use codec (software codec?) optimized for low bitrates and some primitive low-bitrate video can be used. Low bitrate is another thing that drives those who have money to buy real subscription line instead of shared free one, so it is again good thing for teleoperator, only those who really have no money stick to free internet.
Global teleoperator firms own or partially own in many cases telecommunication in third world countries. Those giant international telecommunication firms are in europe partially or in some cases majority owned by some country, so they are partially or majority state-owned firms. When teleoperator firm has minority stake, it still is in many cases biggest shareholder in teleoperator firm. Those firms are in France, Germany, Sweden, Finland, Norway etc. Also rich middle eastern countries, their teleoperator firms, are among firms that are in teleoperator business in third world countries. Those firms are often owned, or partially owned, of sovereign wealth funds of those middle eastern countries. So they are state-owned too. China is also major player in teleoperator field in third world, and Chinese teleoperator firms are state-owned.
When it comes to free (restricted) internet in third world countries, it is enormous business opportunity, that teleoperator who first introduces free (restricted) internet connection, will have billions new users.
It is same thing that Spotify has: profit margin is perhaps small but it is market leader and Spotify rise from nowhere to billions of dollars worth of firm, using business that is not so profitable, but still it is one of the most significant IT technology firms ever.
Any teleoperator that offers first cost free internet (advertisement paid) in third world countries, would be the winner of teleoperator business.
So cost free internet (advertisement paid) is not threat to teleoperator business, it is enormous business opportunity.
Because lot of teleoperator firms operating in third world countries, in mobile phone / internet network and Wifi network, are owned partially or majority stake is in the hands of western countries, middle eastern countries and China s governments, those firms are under parlamentary control. That means that people of those nations, citizens, politicians etc., have power to make that free (restricted) internet in third world countries. Even if firm is only partially owned by state, that partial ownership is often among biggest owners of that firm, so that owner (state) voice is heard when strategy of that teleoperator firm is planned. And by means it won t be bad decision, that firm has billions of new customers if it offers cost free (limited) internet in third world. So in a way world domination of teleoperator business awaits for that firm who first offers free internet in third world countries. Already Facebook etc. had free internet options in third world but that internet connection was so limited that it was almost useless. Useful free net connection in third world is needed, working cheaply and advertisement paid. Useful means that it is internet, but restricted and without fancy graphics and limited data rates etc.
Hundreds of billions of dollars of development aid are spent in development countries, to build their IT infrastructure etc. However it would be much cheaper to just announce cost free (limited) internet in third world countries, perhaps partially paid from development aid programs of some rich country (Norway etc.). It would be much more cost effective than just building IT network as development aid for often costly internet network in third world, and other IT development aid programs.
The so called net neutrality is often discussed when third world and internet are mentioned. But first in priority must be that cost free internet in third world countries is done, when it is accomplished, then is the time to worry about net neutrality etc. It is possible that cost free internet in third world works first 10 -15 years without net neutrality, if missing net neutrality means that cost free internet, advertisement paid, is possible in third world. After perhaps 10-15 years when free internet is firmly established is time of net neutrality.
It is selfish behavior from western people to make noise about net neutrality for their own ideological reasons when this thing does not belong to them, this debate belongs to people of third world, and there too typically middle class academic people and politicians, who have money to buy proper internet connection and are not short of money, propagate net neutrality, without ever asking poor people do they like to have free internet or not, and if there is no net neutrality in cost free internet will those poor people reject free internet.
Compared to development aid programs, billions of dollars each year spent, simply making cost free (limited) internet possible, would be much more helpful to people of third world, than other costly development aid programs. The internet offers so much, education, information, news, entertainment, health care etc., that just simple cost free internet is more useful than other billion dollar development aid projects. And in the end, it will actually generate profit for that partially or majority state-owned teleoperator firm. So instead of spending money for development aid projects, this project for free internet in third world would eventually cover all costs involved and eventually earn money, not spent it, for government who first offers it to third world countries through some partially or majority owned state-owned teleoperator firm. Also for strictly privately-owned teleoperator firm this free internet in third world is golden opportunity.
Not in all countries in third world is at first making cost free internet (advertisement paid) possible, but in some countries it is possible already now.

There are so called video and audio electronic watermarking techniques. Also electronic digital text file can have some sort of electronic watermark. Perhaps those tchniques can be used to mark individual keys to several users who are using same mobile internet subscription line. Now that one subscription line which is shared with many users can be paid by adverts, in third world countries. Because video, still pictures, graphics and audio and text that has been electronically watermarked is like normal video, still picture or sound or text, it can be trasmitted like normal video or audio. But inside this information is mark that gives signal to whom among many users this information is send. In smartphone s software is program that reads this electronic mark in information and then if information is not for this one user, phone discards this information. When individual mark is aimed to one particular user only this smartphone accepts this information. All users that use same subscription line have individual electronic watermarks (keys). DRM protection or copy protection is already used in digital media, this is just version of it. Cinavia is one example of such systems. In this case DRM system is used to make information available to just one user among many users who receive the same digital content. So in third world countries this one subscription line that has many users can be paid by adverts, because one subscription line has many users, so advertisement money per subcription line multiplies. So it is free interenet, but limited. Also information, although all in the same subscription line, is used by only the one to whom this information is send. Multicast transmission is very simple in shared subscription line. All in the same sbscription line are receceiving internet TV and internet radio, even software like free games can be send as multicast transmission, and free e-books that are in public domain, through this subscription line, and all that are in this shared subscription line receive that information. Software system that makes this shared subscription line possible, can be made, so that simultaneusly many people can use only one subscription line. If it works in choppy manner, for example there are second or more length video or audio dropouts per user if many people at same time are using this one subscription line, that does not matter, it is only better that this free internet has some negative aspects so that people who have money to pay mobile subscription line really pay it and don t move to this free version of internet, so teleoperators can continue as usual. Only people who have no money to pay mobile subscription line will then use this shared free (advertisement paid) subscription line in third world countries. There are billions of people without access to internet, but limited internet, advertisement paid, can be made for them, in a way or another. Using mobile phone-, Wifi-, long range Bluetooth-, long range Wifi- or Internet of Things network (if in third world countries have IoT networks), and/or mobile phone ad hoc network style decentralized solutions etc. (if they are needed to make free limited internet). But simply sharing one subscription line with many users could be the solution.
Many teleoperator firms in third world countries are owned or partially owned by teleoperator firms of western countries, middle eastern countries or China. Those teleoperator firms are in turn owned or partially owned by those countries governments, so they are partially or wholly state-owned teleoperator firms. So if those countries decide that third world countries, at least some of them if not all, will have free limited internet, advertisement paid, it is possible because countries are ruled by parlamentary control, so if the will of the citizens in those countries that have partial or whole state-owned control of teleoperator business, is that people of third world people must have free internet, limited and advertisement paid, it is possible. And unlike development aid prgrams that need money, this limited free intrenet thing pays itself back eventually, so it is basically no-cost thing.
People, if they make themselves heard to politicians and decisionmakers who they elected to parlament, can make a change.
And free internet even in limited form is enormously helpful to third world people, education, health education etc. can be send through multicast transmission etc. and news , information, entertainment etc. And basically this is no cost thing, it pays itself back, it does not even require money like development aid projects do (but if there is money for this kind of development aid thing it will make no harm), but only thing that it needs is just decision to start this free internet thing, using first perhaps state-owned or partially state-owned teleoperator firms that have businesses in third world countries. If teloperator firm will have billions of new customers it is no loss of money but business opportunity. Although when it begins it has perhaps same situation like Spotify, although Spotify in profit sense has not been particular success it has been enormously succesfull business in spite of profit margins and rose from nothing to billions of worth of firm. Already established teleoperator firms can do the same value addition of billions of dollars if they simply open free and limited internet in third world countries. Those billions of people without net connection that are future customers are lost opportunity to teleoperator firms until they offer internet to them at price that that is suitable to people of third world, and when people have no additional money to pay for subscription line, even cheap few dollar cost per month line, because they need those few dollars in each month for food and living, only chance is to offer limited internet to them for free, but advertisement paid, so that teleoperator eventually will have no losses. Even one subscription line per customer is perhaps possible in some third world countries, no need for shared line, if internet infrastructure in that country allows cheap subscription line, so that one person (or actually his/her whole family who is using that one cheap smartphone) can pay limited internet connection by watching adverts and sponsor money. There are systems which pay people if they watch adverts. Similar system can be used to pay internet line in third world, people watch some amount of adverts and then they have some time to use internet through cheap smartphone. When that time is out they must watch adverts again and earn more internet time. There are many ways to make limited but usable net connection in third world countries that is advertisement paid. Phone can be commercially sponsored too.

If/when is not possible to offer cost free internet (advertisement paid) in third world countries, it is still possible to make media player without internet connection based on cheap smartphones. But one possibility for data broadcast remains: radio and TV channels. Radio and TV channels can be used to send data like internet, but there is no two-way communication, so information goes from one direction only. However this broadcast can send computer programs like games and apps (free games and apps, and their adverts if they are advertisement paid), free public domain e-books, education, news and information, in form of video, computer graphics, audio and text. There can be constant flow of text, audio, pictures/videos, and computer programs 24 hours / 7 days at week. In list of coming programs user of media player with TV and radio receiver can choose if there is some interesting content coming next hour/ day/ week, and then when that program is chosen media player automatically downloads it from information stream when it time of its transmission comes.
Not any change is needed in TV and radio broadcasting systems, they can be just as they are, only content that previous was moving picture (TV) or audio radio transmission is changed to data transmission that is suitable for smartphone. So data stream replaces TV picture or radio sound, instead of radio voice only high pitch noise is heard when data transmission is on, and instead of TV picture, TV picture is replaced by TV channel data transmission that uses terrestrial TV stations.
Earlier were dial up modems in analog telephone network, 56 kilobits per second, but then was possible data compressed data trough analog phone line, up to 0,5 - 1,3 megabits per second. Phone line had 4 khz max sound frequency, FM radio (ULA) has 15 khz sound frequency, so about 4 times more bandwith,and stereo sound Analog audio channel (FM radio channel) can then transmit 4 X about 1 megabits / second data rate in mono channel? How stereo sound channel increases data rate I don t know but it is more than in mono channel. Data is send in radio sound channel, instead of voice, no need to change transmission hardware.
Analog TV or digital TV station that uses terrestrial through air transmission (antenna TV) can be used to send other data than moving pictures, no need to change hardware, data is just send instead of picture.
There is “software defined radio” principle, so only PC is needed and computer software that transforms data to suitable form that it can be send as radio transmission or TV transmission, analog or digital TV.
DSL (digital subscription line) technology replaced earlier dial up modems. DSL technology can perhaps be used to data transmission in radio and TV channels, without changing hardware in radio or TV stations. Idea is not to use subscription line because data transmission is cost free, everybody who have TV or radio receiver will have access to this information stream, through air as radio signal or as TV signal. Fastest version of DSL reaches 100 megabits / sec. Analog TV signal, in Laserdisc Domesday Project information, is that when Laserdisc TV signal is transferred to raw binary data one Laserdisc has about 180 gigabytes of digital information. That is about 200 megabits / sec data rate in analog TV signal. Digital TV has much less data rate because digital TV picture is highly compressed, DB-T2 has 7,5 megabits to over 30 megabits about, and DVB-T from 5 megabits to over 20 megabits per second, but sometimes TV digital channels use only few megabits per second when picture quality is measured.
So both radio and TV stations can be used for data transmission.
In India is 3 governmental TV terrestrial (not cable) TV stations and 7 governmental radio stations, and large number of local governmental TV and radio stations. In China is about 10 governmental terrestrial TV stations (not cable TV) and 8 governmental radio stations and large number of local TV and radio stations. If in India and in China all except one governmental TV and one radio station remain, all other are transformed to “data transmission stations” sending cost free computer programs, games and apps, audio (audio compressed radio channels as digital data) and video (compressed video channels), textual information like public domain e-books, news etc. as constant stream. It is no internet when two-way communication is missing, but it is cost free, government channels are used (if government TV channels are not cost free to user, then it is impossible to use them as free data channels). Other countries, third world countries, can use also radio and TV channels as data transmission. As far I know everywhere radio channels are cost free, but I don t know are governmental / state owned TV channels cost free or not, and in which countries. But even just radio channels can be substitute of internet if used for data stream transmission. Educational information, medical, health, school learning, agriculture / food and clothing information etc. using videos and sound (audio), and pictures and text, can be in free data stream from radio station.
No hardware is need to be changed in radio or TV station, but receiver, which is cheap smartphone- like media player, must have analog (or digital?) radio receiver inbuild , and digital (or analog) TV receiver too inbuild, and hardware/software how to use data stream from radio sound channel or TV signal (digital or analog TV signal, or both). Chinese cell phones often have not only analog radio but also analog TV receiver inbuild. Digital TV receiver is also needed. In same cheap SoC that contains all important components of smartphone, CPU etc., can also be analog radio and TV receivers (they often are already) and digital TV receiver too in countries that have digital television.
Media player then is just “internet receiver” using radio and TV channels that re cost free. If cost free commercial TV or radio channels (using adverts) and data transmission system can be combined also, so now data stream is cost free but contains advertisements.
Also media player can have inbuild library of useful data, education, games, Wikipedia etc. Cheapest (so worst / slowest) semiconductor RAM memory was slightly over 10 dollars per terabyte in large factory order, before nowdays chip shortage. So cheap media player can have inbuild library besides its usual ROM and RAM memory, that is filled with useful information, about 128 to 256 gigabytes, that is only few dollars extra compared to device without it. SD memory card can also be used, but they cost money, so media player has place for SD card but buyer of device must buy that card himself/herself. Wikipedia offline is Kiwix, 43 gigabytes, but in 2012 Wikipedia in Kiwix was only 9 gigabytes, and there is Minipedia also. Because text is the most used form of data in that free library inside media player, and Wikipedia stored without pictures, it is better that together with ZIM compression there is in Kiwix and other text based libraries also compression method that is specially made to compress text efficiently, there are several of them available.
The extra library memory is in RAM so it can be changed if user wants it and used to store other more up-to-date information when device becomes old or mainly text library (although it contain still pictures and perhaps video and audio also) used to other data storing purposes.
Audio and video codecs that compress with high compression ratios are needed, for example Google SoundStream but without expensive neural net, just vector compression / additive quantization that compress music and speech to 3 kilobytes / sec. Video codec also needs to be highly compressive style. Now those TV and radio channels that are used in data stream transmission can also send those radio and TV channels in that data stream, like they do in their normal operation, in highly compressed form so that there is plenty of extra space in stream for other information, like computer programs / apps / games for smartphone- style media player, free apps and games, and only few kilobytes is used for sound and few dozen / hundred kilobytes / sec is used for low quality video.
If internet must be always be paid service, this free data service is substitute for it, it is only one way communication so no surfing in the net is possible, only downloading useful information is possible, but it is cost free. And media player can use SD memory card, it can play music and audio, like audiobooks if user cannot read or write, it can play movies and Android games and apps if its operating system is Android or Linux version that can use Android programs, it is like smartphone, it has camera and microphone for recording, it can be used as e-book reader and game console, but only two-way communication is missing to make it real smartphone.
Cheap video glasses can be used with that cheap media player to watch videos, and cheap Peltier element heat charger or solar panel can be connected to device to charge its batteries, or hand cranking system that some flashlights have can be used, so it has hand-cranked generator to charge batteries is solar panel or heat charger element is not used.
Good antenna is needed, so media player can have telescopic antenna like radios, and that kind of telescopic antenna that some radios have, antenna that can be turned to different directions. Also wire antenna can be used, perhaps it can be ported to mini-USB port of the media player, or ported to specific wire antenna port. Wire antenna can be several meters long. Also TV type large yagi antenna can be ported to portable media player, that antenna can be sold as extra thing.
Libraries loan books and DVDs, but it is possible that they loan SD memory cards for those media players, and in SD card is e-book or movie. So it is like loaning from library CD or DVD, but it is SD card that is loaned. This kind of library loaning of SD memory cards can be in third world countries where memory cards are used in portable media players.
If cable TV and internet are services that must be paid, only option for cost free broadcasting is terrestrial TV through air (either analog or digital) in those countries where TV broadcasting through air is cost free (not paid TV permission needed), and radio (radio is cost free in every country, as far as I know), analog FM radio (digital radio is perhaps paid service?). So cost free information can go through those channels, TV signal through air (either from state-owned TV channels or commercial advertisement paid TV channels), either analog or digital TV channels. And FM radio channels, either state owned radio channels (national broadcasting system) or commercial radio channels (with adverts).
FM radio channel can have normal radio broadcast 12 hours from 9.00 to 21.00 o clock (or from 10.00 to 22.00, or 8.00 to 20.00 etc.) and then rest of the 12 hours (during night) is digital data broadcast through 15 khz voice channel of FM radio. TV channel can have normal program 6-8 hours per day, from 17.00 to 1.00 night, or from 18.00 to 0.00 midnight etc., and rest of time, 18-16 hours per day is data transmission time. Because interesting data from data stream, either Android app or game, audio or video or e-book or other text, news, education etc., is automatically loaded from list of coming data stream programs, data loading happens during sleep, when user has decided what kind of interesting information user wants to download. Or it is possible that whole TV and radio channels are converted to data stream transmission, 24 hours / 7 days per week. In digital data steam are those TV and radio channels and their programs like normal TV or radio transmission, but they are now in compressed low-quality digital audio or video so there is plenty of room for other information that is in this data stream, like Android games and programs, e-books and texts etc. Those stations that use 12- 18 hours of their time per day in data transmission, have their normal radio or TV programs too going all the time, but when they switch to data stream transmission and end normal radio or TV transmission, radio and TV programs continue in digital data stream, in digital compressed form.
“Software defined radio” type system can be used to make digital information go through TV picture (analog or digital) channels and through 15 khz voice channel of FM radio. If it is not possible to use software to change carrier wave etc. signal properties to more drastically change signal using purely software means. Hardware of TV and radio links and TV and radio stations can stay as they are, data stream in digital form in radio signal or TV signal is done in software.
Low bitrate audio and video codecs are needed, for example HEVC-ULC, “Low bit-rate scalable video coding with 3-D set partitioning in hierarchical trees” (3-D SPIHT), “Highly scalable wavelet-based video codec for very low bit-rate environment”, “An efficient codec for improved quality streaming video at low bitrates”, “Automatic network-adaptive ultra-low-bit-rate video coding” (1 kilobit / sec), “Region of interest-based-ultra-low-bit-rate video coding”, “Super-resolution-based enhancement for real-time ultra-low-bit-rate video”, “Target-tracking-based ultra-low-bit-rate video coding”, “TWM: a framework for creating highly compressed videos”. For audio is “Distortion free 1-bit coding for digital audio signals”, pseudo-NPWM, time symmetric PWM (TSPWM), interpolated PWM, “Correction of errors and harmonic distortion in PWM” 2021. “Noise shaping in time-domain quantized LFM”, “A Nyquist rate SAR ADC employing sigma delta DAC” 2017, “A VCO-based ADC employing a multi-phase noise shaping” 2014, “Quantization and greed are good: one bit phase retrieval” 2013.
Music and spoken audio can even be send using smartphones phone call voice codec, it is optimized for speech voice so not good in music, but those phone voice codecs have low bitrate options of only few kilobits/sec. Podcasts, audiobooks and music can be audio content in that digital data stream that FM radio stations or TV stations send. TV stations can use either analog or digital TV signal to transmit digital data.

Ukraine has been a country which has for many years one of the cheapest, or the cheapest internet in the world. But still, despite the fact that past 5 years or more Ukraine has the cheapest internet in the world, still one third of its population is without internet. Because people have no money to buy that world s cheapest internet. And Ukraine is european industrialized country. How then can third world countries people have internet access if it is too expensive even in Europe to everybody have it.
On the contrary, in some African countries internet is most expensive in the world, not cheaper than in western countries.
It would be probably possible to have cost free limited internet access in third world countries, advertisement paid, if just some teleoperator there would do that. Those teleoperator firms in third world are sometimes partially / wholly owned by teleoperator firms of western countries, middle eastern countries or China. And some of those firms are state-owned so they are under parlamentary control.

In India 60% and in China 30% of people are without internet connection, that is together one billion people in India and China without internet.
So system that uses public broadcasting network, TV and radio network, for data broadcasting can be used as cost free substitute for internet, one way communication only.
Most information is in text form so text compression is needed. Usually 7 bit ASCII or 8 bit UTF text is compressed. But if there would better text compression, that uses large dictionary. There is “Intelligent dictionary based encoding IDBE” but it uses ASCII and UTF also. But if instead of 8 bit UTF, 24 bits are used, 24 bits is over 16 million values. So now instead of one letter or mark in 7 bit ASCII or 8 bit UTF, there is codebook of 16 million, which is enough for all words of english language (however not all words are needed, perhaps much less than million words is enough) and then statistically most used two word or three word combinations, and then most used whole sentences. So one 24 bit sequence can have those. Also all numbers and other marks that are in 7 or 8 bit ASCII or UTF are included, and then few hundred other special marks also, for mathematical notation etc., and other than latin alphabets, like kyrillic and greek, but not perhaps japan or chinese writing marks because they take too much space. Also two large number of two letter or three letter combinations that text compression methods use and use those two or three letter combinations to build words, for example word “perfect” can be build from pe-rf-ec-t combination of three two word blocks and one letter. Some text compression methods use those. There can be before or after this 24 bit sequence additional for example 3 bit marker, which indicates is the following word or sentence that 24 bit sequence describes, in brackets ("), or is the first letter written in big (A) or small (a), or does the word/sequence of words end in dot (.), and other things, perhaps three bits (8 such sentence ending or beginning marks information) is enough or 4 bits (16 values) can be used. So this text encoding uses 24 bits for one “mark” which is not a letter or number like in 7 bit ASCII or 8 bit UTF, it is whole sentence, or whole word, or fraction of word (two or three letters), or just one letter/mark if the letter or mark is really rare. And there is also 3 bit prefix that indicates is there brackets, big letter, or dot, or other needed marks (8 different possible, if more are needed they are in 24 bit library) which are before or after these letters/ marks/ words/ sentences which are included in 24 bit / 16 million library. So this is 3 bit + 24 bit (or 4 + 24 bit if that is needed) instead of just 7 or 8 bit, but now instead of just one letter, whole sentence can be in 27 bits, or one word. So in text “I know now” (which is in brackets) 3 bit prefix has indicator that there is brackets in the following 24 bit library word section, and from the 24 bit library comes the sentence I know now, whole sentence because that sentence is quite common in english language. So whole sentence “I know now” needs 27 bits, not 96 bits if every mark (brackets) and empty space between letters, and letters themselves need 8 bits each.
Another simpler way is that only 5 bits is used for one letter, enough for english alphabet and other marks like brackets etc. or comma (.) and if there is comma next letter is automatically big letter and there is automatically space between letters. Included in 5 bits is also indicator for space between letters (so it is “a a” and not “aa” for example, “aa” needs only 5+5 bits, but “a a” needs 5+5+5 bits when there is empty between letters). Numbers are not included in 5 bits, last mark of 32 marks in 5 bits is “switch to other codepage”, where is numbers and other special marks, it can be 7 bit large so number needs 7+5 bits = 12 bits and other special marks also. So this is 5 bits per letter and most used marks in writing but when numbers and other special marks are used 5+7 bits are needed, in 7 bits (128 values) is last mark 128th mark “switch codebook again” so that those special marks that are not in the list of 127 special marks and numbers are in yet another codebook that is for example 8 bits long (256 values), so now 5 + 7 + 8 bits needed for some really rare special mark 20 bits.
Another way is that there is 4 bit prefix (16 values) that indicates 13 different marks that are in the beginning or end of that word or sentence that is found in 24 bit library, but also is three indicators for switching between three codebooks, codebook A is 16 bits (over 65 000 values), codebook B is 24 bits (over 24 million values) and codebook C 8 bits (256 values). If the word or sentence is found in 16 bit library 24 bit library is not needed, so saving is 8 bits, if not found in 16 bit library 24 bit word / sentence library is used. 16 bit library has those words and sentences that are statistically most used, and also it has two- and three letter building blocks for rare words that are not found even in 24 bit library. The remaining 8 bit library is for numbers, 0-9 , because numbers are often needed in the text, but they don t need to be in some large library, spending 16 or 24 bit to represent one number is too much so better is separate 8 bit library. Because numbers only occupy 10 values in 256 value library, rest of 246 values are dedicated for rare marks, like mathematical notation marks etc. and other marks that are not found in 4 bit prefix and its 13 values (13 marks) available. Now text encoding uses 4 bit prefix and either 16, 24 or 8 bit library. So instead of 8+8+8 bits etc. UTF text where there is 8 bits for every letter, mark or empty space between letters, there is 4 bit (16 value) prefix where one value is indicator of empty space between letters, 12 values are for marks like brackets or dot or question mark, and three values are “switch to codebook A, B or C” commands. So text is now 4+16=20 bits, 4+24=28 bits, and 4+8=12 bits sections instead of plain 8+8+8 bits sections where each 8 bit is one letter or mark. Those 20 and 28 bit sections are now whole sentence or whole word, or sections of two or three words that are part of some sentence, those combinations are all in those 16 bit and 24 bit libraries. 8 bit library is for numbers and special marks, and perhaps two and three letter building blocks of words. IDBE text encoding uses something similar to those two or three word building blocks.
If is better that two or three letter building blocks of words are in 8 bit library instead of 16 bit library, it can be that way, if that saves bits.

If text and other data is compressed, it is possible that information is turned to signal and when this signal can be represented in few number of bits, that compensates the fact that signal must be two times sampled to Nyquist rate, and still data is more efficiently packed than just linear 16 bit or 8 bit chunks, without data compression. Perhaps text can be turned to this kind of audio signal or other signal and then it has better accuracy than just plain 8 bit or 16 bit or 24 bit data chunk.
“Multiple pulse per group keying” patents by Clinton Hartmann.
Kalray has made low power (slightly over 10 Watt or something) CPU / DSP processor, that was cheap, at least earlier versions of it. So if software processing is not enough to make efficient data transmission signal from FM sound signal or from analog or digital TV picture signal, perhaps some low price CPU / DSP like Kalray can then process signal at radio station or TV station. Portable media player must have both hardware and software that can decode this signal, from FM radio transmission and/or TV transmission. There are methods that encode analog signal like encoding audio in “matrix” analog mode. So many sound channels fit in two track analog soundtrack. And then is digital sound matrixing method. Perhaps information can be packed in FM radio signal, stereo signal, in “matrixed” analog form, then it is decoded in portable media player using analog circuits. But also digital sound matrixing can be used at same time, making information space from stereo sound signal even more, both analog and digital matrixing methods can be used at the same time in same signal, increasing information space, and portable media player has both digital and analog matrix decoder to decode information from this kind of multiple-matrixed data transmission from FM radio signal or from analog TV signal.