专利名称：Scrambled TV-IF signal transmission system发明人：Hermann Gysel申请号：US08/259469申请日：19940614公开号：US05430798A公开日：19950704
摘要：A cable TV signal transmission system comprising a Nyquist filter carrierrecovery circuit, a mixer, a level shifter and a pre- emphasis circuit for transmittingscrambled TV-IF signals on an FM or digital signal link to a receiver section comprising ade-emphasis circuit, an amplitude modulator circuit and a VSB filter so as to provide toremote TV receivers a scrambled TV-IF signal with correct timing between the video andaudio scrambling information.
申请人：SYNCHRONOUS COMMUNICATIONS, INC.
代理机构：Fliesler, Dubb, Meyer & Lovejoy
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