Statistically adaptive analog to digital converter

Details Statistically adaptive analog to digital converter Statistically adaptive analog to digital converter

1981-08-19

1983-07-26

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358160, 358166, 340347AD, H04N 514

Patent

active

043957323

ABSTRACT:
An improvement in an analog-to-digital converter wherein a series string of capacitors is utilized to generate reference voltages for the comparators of the converter. The digitized output of the converter is then used to control a predetermined timed discharge from a selected one of the series string of capacitors. The converter, as described, may be used in a video system as an adaptive contrast enhancement mechanism.

REFERENCES:
patent: 3983320 (1976-09-01), Ketcham
patent: 4028694 (1977-06-01), Cook
patent: 4064484 (1977-12-01), Mese
patent: 4160194 (1979-07-01), Anderson
patent: 4334244 (1982-06-01), Chan

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