发明名称 Polarity switch for satellite television receiver.
摘要 <p>A polarity switch for connection between a dual antenna system and a satellite television receiver to permit multiple receivers to simultaneously receive channels of different polarity includes a pin diode switch and input circuitry to decode the standard receiver signal previously used to rotate the antenna feed of a single feed antenna.</p>
申请公布号 EP0189661(A2) 申请公布日期 1986.08.06
申请号 EP19850309079 申请日期 1985.12.13
申请人 SATELLITE TECHNOLOGY SERVICES, INC. 发明人 HORTON, EDWIN THOMAS;HEIMBUCH, WILLIAM G.
分类号 H01Q3/24;H01Q21/24;H01Q25/00;H04B7/08;(IPC1-7):H01Q25/00 主分类号 H01Q3/24
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