发明名称 TRANSMITTING DEVICE FOR CATV.
摘要 A transmitting device for CATV is provided with a satellite receiver (12) for receiving a scrambled television signal of a specific channel from a communication satellite and for demodulating it, a data decoder (17) for decoding a scramble controlling data in the output video signal of the satellite receiver device (12), and a single or plural scrambling devices (18) for scrambling a single or plural video signals inputted for a different television channel by the scramble controlling data decoded using the data decoder. The scrambler for a different channel from the communication satellite's channel scramble the video signals by the scramble controlling data of the communication satellite's television signal decoded using the data decoder (17). Therefore, the scrambling formats of the scramblers are the same as the one of the communication satellite's television signal. <IMAGE>
申请公布号 EP0489929(A1) 申请公布日期 1992.06.17
申请号 EP19910912067 申请日期 1991.07.02
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 SUGIMOTO, AKIHISA
分类号 H04N7/16;H04N7/20 主分类号 H04N7/16
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