专利名称：Device and method for changing multiple
signal
发明人：吉永 尚生,久保田 学,藤原 稔久,金井 俊介,田邉 暁
弘,大川原 龍弘,板倉 邦治,三浦 大介
申请号：JP2018187661申请日：20181002公开号：JP2020057945A公开日：20200409
专利附图：
摘要：Problem to be solved: to change the multiplexed video signal to the videosignal using the FM batch conversion method. The multiple signal changing apparatus is a
branching unit which divides into a first signal and a second signal having a phase
difference of 90 degrees from each other, and a third signal and a first signal obtained byFM modulation of a signal having a frequency multiplied by a signal having a frequencymultiplied by a channel signal which is a video signal of each channel A frequency mixingportion for outputting a mixed mixed signal and a multiplexer portion for mixing themixed signal and the second signal are provided.The third signal is either a signal that hasthe same frequency band as that of a channel to be erased partially multiplexed into theFM batch conversion signal, and has no correlation with the channel signal to be erasedand a channel signal to be added to an empty frequency band in the FM batch conversionsignal Or both.Diagram
申请人：日本電信電話株式会社,パナソニックシステムソリューションズジャパン株式会社
地址：東京都千代田区大手町一丁目５番１号,福岡県福岡市博多区美野島四丁目１番６２号
国籍：JP,JP
代理人：特許業務法人 志賀国際特許事務所
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