发明授权
US5376972A Video signal transmission/reception using high pass filters for motion
detection
失效
使用高通滤波器进行运动检测的视频信号发送/接收
- 专利标题： Video signal transmission/reception using high pass filters for motion detection
- 专利标题（中）： 使用高通滤波器进行运动检测的视频信号发送/接收
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申请号： US856898申请日： 1992-05-14
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公开(公告)号： US5376972A公开(公告)日： 1994-12-27
- 发明人: Yutaka Tanaka , Osamu Matsunaga
- 申请人： Yutaka Tanaka , Osamu Matsunaga
- 申请人地址： JPX Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JPX Tokyo
- 主分类号： H04N5/14
- IPC分类号： H04N5/14 ; H04N7/00 ; H04N7/01 ; H04N9/77 ; H04N7/13
摘要：
In a video signal transmission/reception system based on interlace scanning, video signals picked up by the sequential scanning are limited in vertical frequency band by filters (3a), (3b) and (3c) and transmitted as an interlace scanning video signal. Then, a signal of a predetermined vertical frequency band is extracted from the signal thus transmitted and a motion detection is carried out on the basis of the thus extracted signal.
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