发明名称 Pulsed leakage tagging signal
摘要 A method of transmitting a leakage tagging signal includes inserting a tagging signal into a CATV television signal only during portions of the television signal in which control information is present. A method according to the present invention is a method of transmitting a tagging signal in a communication system, the communication system transmitting television signals comprising control information and program information. One step of the method includes generating a tagging signal that is detectable by corresponding leakage detecting equipment. The method also includes the step of identifying a portion of a television signal in which control information is present. Finally, the method of the present invention encompasses inserting the tagging signal into the television signal only during the portion of the television signal in which control information is present.
申请公布号 US6307593(B1) 申请公布日期 2001.10.23
申请号 US19970943652 申请日期 1997.10.03
申请人 WAVETEK CORPORATION 发明人 BOWYER ANDREW E.;SHI PINGNAN
分类号 H04N7/087;H04N17/00;(IPC1-7):H04N7/00;H04N17/02 主分类号 H04N7/087
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