Converter for catv

作者: G Wimmer , P Court , C Akrell , K Wittig

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摘要: A converter for a CATV system is described. The includes, amongst other circuits, reader reading the binary bits on an encoded document and comparing them with bit code which transmitted from transmitter cable to subscriber''s receiver. If received are identical, signal generated enables process television signals so that receiver can present intelligible program. Provision also made in accordance document, select predetermined one of plurality channels being over cable.

参考文章(3)
Vincent R Zopf, William J Shanahan, Albert M Loshin, Communications secrecy system ,(1970)
Jr Francis H Boos, Richard J Farber, Pay television system with billing transponder ,(1963)
Walter S Druz, Code signal generator ,(1959)