发明名称 INTERDICTION METHOD AND APPARATUS WITH VARIABLE DW
摘要 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.
申请公布号 AU7347491(A) 申请公布日期 1991.09.03
申请号 AU19910073474 申请日期 1991.02.06
申请人 SCIENTIFIC-ATLANTA, INC. 发明人 LAMAR E. WEST JR.;DAVID P. DURAND;MELVIN PAULICK;ANTHONY PRIMIANO
分类号 H04N7/16 主分类号 H04N7/16
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