专利内容由知识产权出版社提供
专利名称：Satellite television broadcasting receiver
including improved clamping circuit
发明人：Shigeru Kawakami,Noriaki Omoto,Toshihiro
Shogaki
申请号：US08/424568申请日：19950417公开号：US05510855A公开日：19960423
摘要：The present invention relates to a satellite television broadcasting receiverwhich receives waves from a satellite, selects a broadcasting channel and obtains an FMdemodulated video signal by passing a selected signal through the band-pass filter. Inthis satellite television broadcasting receiver, the video signal superposed with a largeenergy dispersion signal is inputted to the first clamping circuit at a low level, toeliminate the energy dispersion signal. Thus, a room is provided in the dynamic range ofthe amplifier at the later stage and the DG and DP of the amplifier at the later stage aremaintained at a satisfactory level by the second clamping circuit. As a result, even in thecase of a satellite television broadcasting in which the level of the energy dispersionsignal superposed on the video signal is large, distortion which occurs due to thenonlinearity of the amplifier can be reduced substantially so that the image can bereproduced on the screen in a satisfactory condition without an interference of flickering.
申请人：MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
代理机构：Stevens, Davis, Miller & Mosher
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