双重加密电视的研究

STUDY OF DOUBLE SCRAMBLED TV SYSTEM

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摘要 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. 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.

作者何辅云吴挺

出处《合肥工业大学学报（自然科学版）》 CAS CSCD 1993年第3期179-184,共6页 Journal of Hefei University of Technology：Natural Science

关键词加密脉冲解密脉冲导频电视信号 Scrambled pulse,Decoder pulse,Pilot.

分类号 TN941 [电子电信—信号与信息处理]

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合肥工业大学学报（自然科学版）

1993年第3期

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双重加密电视的研究

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