Exceedance counting integrating photo-diode array

Details Exceedance counting integrating photo-diode array Exceedance counting integrating photo-diode array

1985-12-06

1987-07-07

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Counting or dividing in incremental steps

Charge storage

35821329, 377 54, G11C 1900

Patent

active

046792155

ABSTRACT:
The use of a comparator and counter associated, on-chip, with each photo-element of an array. Sensing each photo-element without discharging it and allowing each photo-element to accumulate a charge which is large relative to noise variations. These features result in a photo-detector with large signal-to-noise ratios.

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"Common Threshold Index Compensation Type Amplifier Configuration for Diskettes", IBM Technical Disclosure Bulletin, vol. 20, No. 3, Aug. 1977, pp. 1148-1150, by S. G. Steele.

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