Noise reduction system for color television signal

Details Noise reduction system for color television signal Noise reduction system for color television signal

1979-03-27

1981-01-20

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 36, H04N 521

Patent

active

042466105

ABSTRACT:
A noise reduction system for a color television signal wherein the television video signal is stored for a period substantially equal to the period of one television frame and the value of the stored signal is compared to the value of a present incoming television signal to produce a frame-to-frame difference signal. A non-linear transmission factor, dependent on the value of the frame-to-frame difference signal, is introduced into said difference signal and the difference signal is then added to the present incoming television signal.

REFERENCES:
patent: 4058836 (1977-11-01), Drewery et al.
McMann et al., "A Digital Noise Reducer for Encoded NTSC Signals", SMPTE Journal, vol. 87, Mar. 1978, pp. 129-133.

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