发明名称 INTERDICTION METHOD AND APPARATUS WITH VARIABLE DWELL TIME
摘要 <p>A cable television interdiction apparatus (130) comprises a microprocessor actuation and control means (300) for actuating and controlling one or more frequency agile voltage controlled oscillators (341-344). The voltage controlled oscillators (341-344) selectively jam only unauthorized premium programming transmitted from a headend (100) to a particular subscriber. The method of interdiction comprises the steps of generating and storing voltage control words for operating the oscillators (341-344) consistent with a headend selected jamming factor for a particular channel to be jammed and addressably transmitted and stored premium programming authorization data.</p>
申请公布号 WO1991012694(A1) 申请公布日期 1991.08.22
申请号 US1991000809 申请日期 1991.02.06
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