Full-resolution digital TV – Digital TV – HC Network Appliance Industry
Digital TV refers to the collection of television programs, production, editing, broadcast, transmit, receive all the whole process of digital technology. Corresponding digital technology is concerned, there is a technique called simulation technology. Currently, TV programs received from the collection to the whole process, most of the digital link has been achieved, but in some areas, not yet fully adopted digital technology, such as cable television transmission and the user receives two areas, are still using analog technology . So now we often talk about digital TV, cable TV transmission and the main means
Users to receive digital two areas. Only a television program from the collection of the whole process to the user to receive digital, is the true digital television.
Characteristics of digital television
Compared with analogue television, digital television technology has the following characteristics and advantages: A, high-definition, audio effect, anti-interference ability. B, increase in number of channels will become several times. C, multi-functional operations can be undertaken. "Analog TV can not see the digital TV can see, analog TV can not do digital TV can do", this is a unique digital TV.
What is digital TV set top boxes
First say what is the TV set-top boxes, by definition, television set-top box is the top TV boxes, TV function to expand a home appliance. TV set-top box is divided into categories based on the received signal analog TV set-top boxes and digital TV set-top boxes. Analog TV set-top box to receive analog signals, so far limited use. As digital video technology development and national efforts to promote digital TV, digital TV set-top box concept has become the true set-top boxes. Because of its close ties with the TV, and a digital device, it is called a digital TV set-top boxes.
What is digital TV smart cards, What is the function?
Smart card has a built-in processor and a communication interface with the digital set-top boxes. Smart cards contain an integrated memory card allows operators to download applications and data. Smart cards require a high degree of security to ensure that unauthorized users can not access digital TV.
Present, the main function of the smart card is used for secure storage, decryption, and access to the set-top box license. Future applications in the digital television field, smart cards can also be programmed to play electronic wallet functionality, real-time for online shopping and other paid services.
Why buy a digital TV set top box can also add to watch digital TV?
The one hand, China's digital TV standard has not yet introduced the color TV factory is not easy to set-top box into the TV to do some of the features in. On the other hand, in order to ensure that subscribers of the service quality and signal transmission of security, digital television transmission using encryption, only through the set-top box to decrypt the signal to normal after the show to watch. Meanwhile, in order to ensure the services carriers be rewarded, each region operators are not the same encryption method used by digital TV set-top boxes will also have their own unique format, this format is not compatible with other set-top boxes, Therefore, at present, not only with a digital TV can not watch digital TV programs, easily purchased from the market set-top box can not receive digital TV programs. And really have a digital TV in the future after the individual user to watch TV programs, also need to set-top box to watch.
Watch digital TV digital TV to buy it?
Various domestic digital television broadcast standard definition digital TV is TV, watching standard-definition digital TV users do not have to buy new digital TV, just purchased a carrier with a digital set-top box smart cards you can watch digital TV programs. Digital set-top box has an analog signal into digital signal transfer and easy analog TV reception. Therefore, even if you're using the most old-fashioned black and white TV, as long as have audio and video input interfaces can be set-top box to watch digital TV programs. As a computer monitor, TV also just a monitor, what to see what kind of equipment to take and, of course, the higher the resolution, the more you can highlight the existing TV high-quality digital TV picture quality.
Digital and analog television program can also watch it?
Now Shenyang cable digital TV programs are synchronized with the existing analog television broadcast, as long as the installation of set-top box can watch. Broadcast digital television programs without affecting the original analog watch.
How to watch cable digital TV programs in Shenyang?
Shenyang cable if you are a legitimate user, only cable television service from Shenyang to buy a hall set-top box and a smart card, to your home TV and set-top box connected to the standard you can watch high-definition digital TV programs.
Digital TV cost?
I am an expert from Frbiz Site, usually analyzes all kind of industries situation, such as phonak hearing aid , canal hearing aid.
Processing your request, Please wait....
