What kinds of reception are there in our country's TV?
There are many kinds of color TV formats, for example, we often hear the international line color TV, have 21 kinds of color television standard, but the color television system to share very detailed study and discussion, and no practical significance. In people's general impression, the color television system generally only has three kinds, namely NTSC, PAL, SECAM and so on three kinds of color television systems.1. orthogonal balanced modulation system - National Television Systems Committee, referred to as NTSC system. The main countries that use this system are the United States, Canada and japan.2. quadrature balanced amplitude progressive inverting system - Phase-Alternative Line, referred to as PAL system. China, Germany, Britain and some other northwestern European countries use the system.3. line rotation frequency modulation system - Sequential Coleur Avec Memoire, referred to as SECAM system. There are some countries in France, the former Soviet Union and Eastern europe.
Simply say: TV broadcasting system is mainly used in the world are PAL, NTSC, SECAM three, such as the use of PAL standard in most regions of China, Japan, Korea and Southeast Asia and the United States and other western countries to use NTSC standard, SECAM standard is used in russia. The officially imported DV products we buy in the domestic market are all PAL standard.Strictly speaking, there are many kinds of TV formats, for analog TV, black and white TV format, color television system, and audio format; for digital TV, image signal and audio signal compression encoding format (encoding), and TS (Transport Stream) stream encoding format (channel encoding), and digital signal modulation format, format and image display system.The main contents of black and white television system are: modulation mode of image and sound, polarity of image signal, carrier frequency difference of picture and sound, frequency band width, channel interval, scanning line number and so on. At present, countries adopt black and white television system: A, B, C, D, E, F, G, H, I, K, K1, L, M, N and so on, a total of 13 kinds (of which A, C and E have not been used), China is one of the D, K system.
If you want to learn more - the world television standard, give you a website of color TV standard has many kinds, for example, we often hear the international line color TV, have 21 kinds of color television standard, but the color television system share very detailed study and discussion, and no practical significance. In people's general impression, the color television system generally only has three kinds, namely NTSC, PAL, SECAM and so on three kinds of color television systems.1. orthogonal balanced modulation system - National Television Systems Committee, referred to as NTSC system. The main countries that use this system are the United States, Canada and japan.2. quadrature balanced amplitude progressive inverting system - Phase-Alternative Line, referred to as PAL system. China, Germany, Britain and some other northwestern European countries use the system.3. line rotation frequency modulation system - Sequential Coleur Avec Memoire, referred to as SECAM system. There are some countries in France, the former Soviet Union and Eastern europe. You can find any TV system you want to know about, and I hope it will help you!!
