发明名称 SATELLITE COMMON RECEPTION SYSTEM AND AMPLIFIER FOR THE SYSTEM
摘要 PROBLEM TO BE SOLVED: To transmit even signals from satellites whose frequency bands are at least partly duplicated to each terminal through a few transmission channels. SOLUTION: Converters 6, 14 and a block converter 10 convert a pluraly of signals of a first satellite including at least two satellite signals having different polarization planes and whose frequency bands are at least partially overlapped into a pluraly of 1st satellite intermediate frequency signals whose frequency bands are not overlapping. The 1st satellite intermediate frequency signals are sent through a coaxial cable 18. A converter 22 converts at least two 2nd satellite signals having different polarization planes and whose frequency bands are at least partly duplicated into plural 2nd satellite intermediate frequency signals whose frequency bands are not duplicated but partly duplicated with those of the 1st satellite intermediate frequency signals. The 2nd satellite intermediate frequency signals are sent through a coaxial cable 26. Plural 1st terminals 28 are placed at the coaxial cable 18 at some intervals and plural 2nd terminals 30 corresponding to the 1st terminals 28 are provided to the coaxial cable 26.
申请公布号 JPH11298810(A) 申请公布日期 1999.10.29
申请号 JP19980103096 申请日期 1998.04.14
申请人 DX ANTENNA CO LTD 发明人 KAMIMURA TORU;FUJIMOTO SUKETSUGU;MORISHIGE SATORU
分类号 H04B1/18;H04N5/00;H04N7/20;H04N21/61;H04N21/647 主分类号 H04B1/18
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