发明名称 SUBSCRIPTION TELEVISION CODING SYSTEM
摘要 An audio and video signal coding system in which the normal sync pulses in the horizontal and vertical blanking intervals are suppressed, and clock and control data as well as digital audio data is inserted therein. The data, both audio information and clock data in the horizontal blanking interval is further distorted by the application of a periodic waveform and/or voltage level enhancement of certain portions of the horizontal blanking interval.
申请公布号 AU7056281(A) 申请公布日期 1981.11.19
申请号 AU19810070562 申请日期 1981.05.14
申请人 OAK INDUSTRIES INC. 发明人 P. DEN TOONDER
分类号 H04N7/171 主分类号 H04N7/171
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