基本信息:
- 专利标题： Video signal processing circuit
- 专利标题（中）：视频信号处理电路
- 申请号：EP92309555.8 申请日：1992-10-20
- 公开(公告)号：EP0539147A3 公开(公告)日：1993-07-14
- 发明人： Amano, Toshio , Oda, Osamu , Saitoh, Mitsumasa
- 申请人： SONY CORPORATION
- 申请人地址： 7-35, Kitashinagawa 6-chome, Chiyoda-ku Tokyo JP
- 专利权人： SONY CORPORATION
- 当前专利权人： SONY CORPORATION
- 当前专利权人地址： 7-35, Kitashinagawa 6-chome, Chiyoda-ku Tokyo JP
- 代理机构： Nicholls, Michael John
- 优先权： JP299516/91 19911021
- 主分类号： H04N5/00
- IPC分类号： H04N5/00 ; H04N5/205
摘要：
A video signal output circuit used in a TV set to sample the frequency level of an input video signal so that monitored pictures are automatically optimized in quality. A luminance signal is separated from the input video signal by a Y/C separator. A plurality of band-pass filters whose passing frequencies are f₁, f₂, f₃, ..., f n detect the frequency spectrum of the luminance signal through sampling. The detected values are sent to a controller attached to an equalizer. The equalizer is controlled so that monitored pictures based on the output video signal are optimized in quality.
公开/授权文献:
- EP0539147B1 Video signal processing circuit 公开/授权日：1997-01-15