发明名称 Method of transmitting return signals to a satellite from a videocommunication signal distribution network
摘要 An antenna system (1) transmits return signals, for example, in the band Ka, based on signals received from a distribution network in the band from 2.5-3 GHz. The return signals are transmitted through the network from a user receiver (PC) with a frequency lying below 65 MHz, they are processed in a frequency converter (up-C) between the network and the antenna system so as to be delivered to the antenna system with a frequency lying in the 2.5-3 GHz band, and frequency management data received in the downstream channel are used in the frequency converter (up-C) for selecting the frequency in the 2.5-3 GHz band.
申请公布号 US6868255(B1) 申请公布日期 2005.03.15
申请号 US20000503966 申请日期 2000.02.14
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V. 发明人 CHANTEAU PIERRE;EDOUARD REYNALD;BRAJAL AMERICO
分类号 H04H1/02;H04J1/04;H04N7/173;H04N7/20;(IPC1-7):H04B7/185 主分类号 H04H1/02
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