著者

根津 俊一 石川 賢二 木村 知弘 村上 弘規 橋間 明生

出版者

一般社団法人映像情報メディア学会

雑誌

テレビジョン学会技術報告 (ISSN:03864227)

巻号頁・発行日

vol.15, no.14, pp.1-6, 1991-02-21

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Television transmission services, such as business TV, via communication satellites started in 1989. For these services, we have developped a scrambling system based on the system standerdized for broadcasting satellite. This new system is characterized by positive sync. and modified line permutation resulting in high security and high quality of descrambled signal for video and by range-bit conversion resulting in softer scrambling noise for audio.