This paper describes a new scrarabled television system.It is a key of pay TV (subscription-TV). In the TV system, video signal is encoded and a pilot signal is transmmitde in TV center, and a radio frequency decoder ...This paper describes a new scrarabled television system.It is a key of pay TV (subscription-TV). In the TV system, video signal is encoded and a pilot signal is transmmitde in TV center, and a radio frequency decoder is plugde up antdnna terminal lead of TV receiver.The frequency of pilot is changed in a periocl,the double scrambled TV system or pay TV is completed.展开更多
文摘This paper describes a new scrarabled television system.It is a key of pay TV (subscription-TV). In the TV system, video signal is encoded and a pilot signal is transmmitde in TV center, and a radio frequency decoder is plugde up antdnna terminal lead of TV receiver.The frequency of pilot is changed in a periocl,the double scrambled TV system or pay TV is completed.
