DEVICE FOR AUTOMATIC ENHANCEMENT OF TELEVISION PICTURE CONTRAST Russian patent published in 2004 - IPC

Abstract RU 2233044 C2

FIELD: television engineering; television signal processing devices.

SUBSTANCE: proposed device designed to automatically enhance contrast of television picture performs following functions: automatic gain control of video signal; automatic enhancement of television picture contrast; analog-to-digital conversion of video signal. Device has clock generator 1, freeze unit 4, amplifier 5, reference-voltage unit 3, resistive voltage divider 6, comparator unit 7, peak detectors 2, 11, and gating unit 12.

EFFECT: extended dynamic range of device.

1 cl, 3 dwg

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RU 2 233 044 C2

Authors

Vilenchik L.S.

Goncharenko B.G.

Kurkov I.N.

Razin A.I.

Rozval Ja.B.

Dates

2004-07-20Published

2002-08-15Filed