How many digital TV standards exist nowadays?

"There are three digital TV transmition standards in the world: ATSC (Advanced Television Systems Committee), adopted by the USA, Canada, Mexico and South Korea; ISDB-T (Integrated Services Digital Broadcasting Terrestrial), adopted by Japan; DVB-T (Digital Video Broadcast Terrestrial), adopted by the other countries that have already decided which digital television standard they will follow, like the countries located in Europe, Asia, Africa and Oceania. All three digital television transmiting system uses the MPEG-2 algorithm to encode the image, the same algorithm used by DVD. The differences between them are the video format before the encoding, the video format after encodin and the way audio in encoded. ATSC system uses a technique called 8-VSB while the other two systems use a technique called COFDM, which is less sensitive to noise." [1]

Source:
[1]: http://www.hardwaresecrets.com/article/122

Go Back to Technological factors