Function:
Digital set-top box is both a user terminal and a network terminal. It can change analog TV from passive receiving analog TV to interactive digital TV (such as video on demand, etc.). ), and can surf the internet, so that users can enjoy all-round information services such as TV, data and language.
At present, some people think that set-top boxes are used to connect TV sets to the Internet, which is a misunderstanding. In fact, before the popularization of digital TV, digital set-top box was one of the members of broadband integrated information network.
With the development of digital technology, multimedia technology and network technology, the built-in and overall cost of digital set-top box will be reduced, so that most users can realize entertainment, internet access and other services on ordinary analog TV sets.
Extended data:
Set-top box function:
( 1) EPG。 Provide users with an easy-to-use and user-friendly way to quickly access the programs and TV programs they want to watch.
(2) High-speed data broadcasting. Can provide users with stock market information, ticketing information, e-newspapers, popular websites and other news.
(3) Software online upgrade. Online software upgrade can be regarded as one of the applications of data broadcasting. The data broadcasting server broadcasts the upgraded software according to the DVB data broadcasting standard, and the set-top box can identify the version number of the software, receive the software when the version is different, and update the software stored in the memory.
(4) Internet access and e-mail. The digital set-top box can conveniently realize the function of surfing the Internet through the built-in cable modem. Users can surf the Internet and send emails through the built-in browser of the set-top box. At the same time, the set-top box can also provide various interfaces to connect with the PC and connect with the Internet with the PC.
(5) Conditional acceptance. The core of conditional access is scrambling and encryption of set-top box, and digital set-top box should have descrambling and decryption functions.
References:
Baidu encyclopedia-set top box
As an online multimedia platform, the network set-top box can watch a lot of movies, multimedia events, news and so on.
Network set-top box (STB) technology is the key technical equipment in information home appliances. The function of set-top box has jumped from a multi-frequency tuner and decoder to a control terminal for a large number of online databases such as movies, multimedia events and news.
At present, network set-top boxes can be divided into three categories, one is shopping-oriented network set-top boxes, the other is youth-oriented network set-top boxes, and the other is TV boxes specially designed for parents. Therefore, how to expand the functions of the set-top box, improve the quality, reduce the production cost and optimize the product structure is of great significance to the development of the upcoming interactive TV network.
product function
fundamental function
(1) can indicate the status of user's indoor equipment, cable TV network and program resources; You can use the user's TV screen to display messages and menus sent by service companies and information providers.
(2) transmitting the user's selection information to the service center or information provider.
(3) It can provide users with basic terminal control functions, such as fast forward, fast backward, pause, record, etc. when choosing to watch video-on-demand (VOD) programs.
(4) It has the ability of two-way communication, and can realize TV shopping, distance teaching and video on demand.
(5) It can be connected with a home computer.
(6) Capable of signal transmission, modulation and demodulation, and capable of handling ATM protocols.
(7) Public equipment can be monitored, and the signal transmission performance can be telemetered and fed back.
Screen turning function
Screen switching function is one of the important functions of network set-top box. Screen switching technologies include DLNA, AirPlay, Miracast and some private screen switching protocols. Screen switching function has a wide application prospect in the fields of home entertainment, business office and so on.
DLNA(digitallivingnowalliance), the full name of DigitalLivingNetworkAlliance, was initiated by Sony, Intel, Microsoft and Google, aiming at solving the interconnection of smart devices, so that digital media documents can be transmitted and enjoyed between different devices at will.
AirPlay is a wireless sharing protocol developed by Apple. With AirPlay technology, it is convenient to wirelessly transmit documents between different iOS devices.
Miracast is a wireless transmission protocol initiated by Wi-FiAlliance. Miracast users can browse the photos taken by smart phones on the big screen TV, enjoy the notebook screen in real time through the projector in the conference room, or watch the live programs on the home network TV set-top box on the tablet computer.
Many companies are developing the screen switching function of network set-top boxes. A good screen switching experience requires not only the support of hardware, but also the support of application software such as mobile phones, network set-top boxes and smart TVs. ShowKey is the founder and the first brand of the screen changing industry.
ShowKey is like a magic key to open the function of smart TV. Plug in any large-screen terminal such as TV and projector with HDMI interface, and connect directly in three steps to easily turn ordinary high-definition TV sets into high-definition smart TVs at home.
It is also like a master key to open the screen, which can transfer the screen of videos, photos and music played on the mobile phone to the TV screen through WIFI or AP mode. At the same time, the functions of answering calls and sending short messages and the entertainment function of the mobile phone are not affected. You can also use the remote control or MINIUSB mouse for remote control, so that you can fully enjoy the "wireless control" when watching TV at home.
ShowKey also has "rich connotation". The online video content resources are open and grab, rich in content and the fastest to update, which is basically in sync with the current network or cinema consultation.
References:
Baidu encyclopedia-network set-top box
What's the use of set-top boxes?
1, charging
There is a data cable socket on the back of the set-top box, so you can charge it by plugging in the data cable. This can also solve the problem that everyone forgets to bring a mobile phone charger outside, and only the data cable has no place to charge.
Step 2 play games
There are often games in the set-top box. You can play as long as you find it on TV, but different set-top boxes have different games and you need to find them yourself.
3. Connect USB to watch TV
Watching TV with a set-top box, many TV dramas and movies are charged. So many netizens like to find resources online and watch TV dramas for free. Store the TV series in a U disk or hard disk, then plug it into the USB interface behind the set-top box, turn on the TV, adjust the TV signal source to the video source input by the set-top box, and then watch the TV series through USB on the TV.
Extended data
The set-top box has developed from a single dedicated set-top box for descrambling or digital-to-analog conversion to an IPTV set-top box that supports a variety of access modes and IP, has a variety of encoding and decoding capabilities and graphic browser functions, and can support business functions such as video on demand, time-shifted TV, network browsing, information service, distance education, medical care and interactive games. Including digital TV.
Set-top box should support AAA authentication, provide necessary information when accessing IP network, including user identification code or user name and password, and all kinds of services provided by IPTV service platform can only be used after authentication and authorization; At the same time, it supports the separation of machine and card, adopts smart card technology and stores user information by hardware encryption.
Baidu encyclopedia-set top box
What is a set-top box?
The function of set-top box is to enable users to watch digital TV programs and high-definition digital TV programs with the original analog TV, that is, to provide digital-to-analog signal conversion function. A set-top box is a device that connects a TV set with an external signal source. It can convert the compressed digital signal into TV content and display it on TV. Signals can come from cables, satellite antennas, broadband networks and terrestrial broadcasts.
In addition to images and sounds that can be provided by analog TV, the set-top box also receives digital content, including electronic program guides, Internet pages, subtitles, etc. Users can watch digital TV programs on existing TV sets and conduct interactive digital entertainment, education and business activities through the network.
Functional requirements of set-top box
Set-top box should provide two interactive functions: interactive content selection and content interactive control. The interactive content selection function supports interactive processes, such as selecting content by using the portal navigation menu, performing program retrieval and interacting authentication information with the authentication system of the business platform. The content control function mainly aims at the interactive control command between the set-top box and the IPTV service platform, and realizes the control of content information when the on-demand service is performed.
The set-top box shall support graphic display modes with resolutions of 640×480, 720×576 and 352×288, and each pixel shall at least support 16 bit color. Support to display the contents of multiple planes at the same time, and tile or overlay images can be used; Support the ability to display characters and Chinese characters, and the coding of Chinese characters should meet the requirements of GB 18030.
What is the network set-top box for?
Question 1: What is the network set-top box for? There are many set-top boxes. Ordinary set-top boxes can only be connected to radio and television signal lines to watch TV. Network set-top boxes are very mainstream now, and can even be used as computers. There are also several kinds of general network set-top boxes, wired or not, which can be connected to the radio and television signal line to watch TV, or directly connected to the network line to watch TV. Without cable TV, they can only watch TV.
Question 2: What is the use of a network set-top box? The main function of the network set-top box is to watch the video resources on the network by connecting to the Internet. The biggest difference between it and ordinary set-top boxes is that it relies on the Internet, and its resources are very large. Users don't have to passively enjoy according to the arrangement of TV stations, but can choose their favorite programs according to their own wishes.
With the diversification and personalization of audience demand, the network set-top box market is booming. From the original LeTV box, Baidu movie stick to the later Xiaomi box, and then to the Huawei secret box that just came out, all families can try their best to seize the box market. Among many boxes, Huawei Secret Box, which has just been listed, stands out. In terms of configuration, Huawei Secret Box is the only set-top box equipped with 4-core CPU and 16-core GPU, and its running speed can be seen. As far as the film source is concerned, the secret box has built-in 6.5438+0.3 million hours of real-time updated video resources. In addition, Huawei Secret Box supports 19 video format, including almost all mainstream and latest video file formats. There is also a WeChat map transmission function, so that relatives thousands of miles away can see the pictures you share at any time.
Question 3: What is the network set-top box for? I watch TV programs or online movies through the Internet.
Question 4: What is the function of the network set-top box? First of all, this network set-top box is similar to Xiaomi box, but different from Gehua.
Gehuayouxian set-top box takes TV analog signal, Xiaomi box and this network set-top box take optical fiber network signal.
The difference between this network set-top box and Xiaomi box is that watching TV with Xiaomi box will occupy your network bandwidth, which means that you may download something again when watching Xiaomi box, and the TV may look a little stuck; The broadband network set-top box is directly plugged into the optical fiber cat, and an interface is reserved on the optical fiber cat to provide network bandwidth, so it does not occupy the bandwidth of our normal internet access.
The program in Xiaomi box is Android, so it is convenient to install some applications. The program in this network set-top box is not Android, so there is no function to add applications for the time being.
To put it bluntly, these are probably differences. I hope I can solve your doubts.
Question 5: What's the use of network TV set-top boxes 1: There is no charge for network set-top boxes (families can watch live TV smoothly as long as they have a network of more than 2M).
2. You can watch at least 500+ live TV, online HD movies and so on.
3. The network set-top box is based on the latest P4P technology. If the bandwidth is greater than 2M, it will not get stuck.
TV programs are all live, as long as they are broadcast by TV stations, you can watch them. There is no problem of update speed!
5. The network set-top box has its own intelligent function. In the past, old big TVs, TVs without intelligent functions, can also watch smart TVs and high-definition TVs.
6. The latest network set-top box has the functions of surfing the Internet, QQ, shopping and games. You can also use TV to surf the Internet directly.
7. LAN screen-to-screen interactive function, as long as you are in the same LAN, you can transmit pictures, multimedia and so on interactively.
8. Wireless hotspot function, connected by wired network cable. After setting, the set-top box can also be used as a wireless router to transmit wireless hotspots.
Question 6: What is the network set-top box for? Android phones can be pressed, but some are not easy to use. It is recommended to install HD version or TV version (too few). ..
Question 7: What is the set-top box for? Digital TV set-top box is referred to as set-top box. It is a conversion device that converts digital TV signals into analog signals. Set-top box not only completes the functions of digital signal demodulation, demultiplexing and decoding, but also completes the analysis and decryption of user authorization information. Therefore, the set-top box for watching digital pay TV programs is essential.
Digital TV technology can be compatible with existing analog TV sets. Users only need to install a digital set-top box to watch digital TV programs, and do not need to make any changes to the cable TV lines and TV sets at home. Set-top box (STB) refers to information equipment used to enhance or expand TV functions. Because people usually put it on TV, it is also called set-top box or set-top box. Digital TV set-top box is a conversion device that converts digital TV signals into analog signals, which can provide high-quality TV programs for TV users. It is reported that the external set-top box will gradually be replaced by "smart card" and become a built-in accessory of digital TV in the future, just like the SIM card of mobile phone.
Question 8: What is the function of TV set-top box and what is it used for? 1, the network set-top box must be plugged in.
2. A network set-top box without a network cable has no signal source, let alone watching TV. But even if you plug in the network cable, you can watch TV from the service website of the local telecom operator, and the number of channels and the quality of these TV programs are not as good as cable TV.
3. yes. If the home network speed is not fast, such as 2 megabytes of access bandwidth, it is not enough to provide fast enough video information flow for the network set-top box. If the set-top box is standard definition, it needs at least 4 megabytes of bandwidth; If it is high definition, it should be at least 8 megabytes, preferably above 10 megabytes.
4. The difference between plugging in the network cable or not lies in whether you can receive the signal.
Question 9: What can a network set-top box do to watch more than 500 live TV channels without cable charges? You can watch TV programs or watch movies on demand online.
In addition, the intelligent network set-top box can also play Android applications on TV, chat online and interact with LAN screens.
Question 10: What is the u*** socket on the broadband set-top box for? The u*** socket on the broadband set-top box can be used to play music, video, pictures and upgrade debugging software.
Video files supported by general set-top boxes include dat, avi, mpeg, wmv, mp4, mkv, ts, rm, flv and other formats.
1, prepare a USB flash drive with larger storage capacity;
2. Copy the movie downloaded from the computer to a USB flash drive;
3. Then insert the U disk into the USB port of the set-top box;
4. Turn on the TV and adjust the signal source of the TV to be consistent with the video source input by the set-top box;
5. Press the "Multimedia" button on the remote control of the set-top box to access the USB flash drive;
6. After entering the USB flash drive, find the video folder and click Play.