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

Movement-adaptive transversal-recursive noise suppression circuit for a
television signal
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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