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
| Title | Year | Author | Number |
|---|---|---|---|
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