发明授权
US4607284A Movement-adaptive transversal-recursive noise suppression circuit for a
television signal
失效
用于电视信号的移动自适应横向递归噪声抑制电路
- 专利标题: Movement-adaptive transversal-recursive noise suppression circuit for a television signal
- 专利标题(中): 用于电视信号的移动自适应横向递归噪声抑制电路
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申请号: US608673申请日: 1984-05-09
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公开(公告)号: US4607284A公开(公告)日: 1986-08-19
- 发明人: Johannes G. Raven , Marcellinus J. J. C. Annegarn
- 申请人: Johannes G. Raven , Marcellinus J. J. C. Annegarn
- 申请人地址: NY New York
- 专利权人: U.S. Philips Corporation
- 当前专利权人: U.S. Philips Corporation
- 当前专利权人地址: NY New York
- 优先权: NLX8301680 19830511
- 主分类号: H03H15/00
- IPC分类号: H03H15/00 ; H04N5/21 ; H04N9/64 ; H04N9/77 ; H04N5/213
摘要:
A movement-adaptive transversal-recursive noise suppression circuit for a television signal can be provided in a simple way with only a single control system (19) for changing from transversal to recursive filtering while maintaining optimum noise suppression. The circuit includes a first combining circuit having a first input for receiving the television signal, a delay circuit coupled to an output of the first combining circuit and a second combining circuit having a first input coupled to an output of the delay circuit and a second input coupled to the output of the first combining circuit, the output of the delay circuit being also coupled to a second input of the first combining circuit, and an output of the second combining circuit being the output of the noise suppression circuit.
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