发明授权
- 专利标题： Antijitter arrangement for synchronizing pulse separator
- 专利标题（中）： 用于同步脉冲分离器的反射装置
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申请号： US882560申请日： 1986-07-07
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公开(公告)号： US4745477A公开(公告)日： 1988-05-17
- 发明人: Isaac M. Bell , Thomas D. Gurley
- 申请人： Isaac M. Bell , Thomas D. Gurley
- 申请人地址： NJ Princeton
- 专利权人： RCA Corporation
- 当前专利权人： RCA Corporation
- 当前专利权人地址： NJ Princeton
- 主分类号： H04N5/08
- IPC分类号： H04N5/08
摘要：
A synchronizing pulse separator for a video apparatus provides horizontal and vertical synchronizing pulses from a composite video signal. The sync separator incorporates a compensation circuit that achieves noise immune operation with composite video signals that provide progressive field display and consequently lack synchronization equalizing pulses. The compensation circuit maintains a sufficient bias level on the sync separator transistor during the vertical blanking interval to prevent premature triggering of the vertical deflection circuit due to noise.
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