Detector array gain compensation

Details Detector array gain compensation Detector array gain compensation

1974-02-25

1977-06-28

Safourek, Benedict V.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 314, H04N 530

Patent

active

040329755

ABSTRACT:
In an electronic system employing an array of detectors which have been compensated for any fixed pattern noise present, further compensation is provided for any deviation in sensitivity (gain) of each detector from a standard by measuring the output of each detector under uniform level of incident energy, and comparing the amplitude measured with a standard while multiplying the measured output by a factor that is varied until the product equals the standard. The final factor is then stored for use as a gain compensation factor during normal system operation.

REFERENCES:
patent: 2965711 (1960-12-01), James et al.
patent: 3564245 (1971-02-01), Koehler
patent: 3684378 (1972-08-01), Lord
patent: 3800078 (1974-03-01), Cochran et al.
patent: 3800079 (1974-03-01), McNeil et al.
patent: 3830972 (1974-08-01), McHugh et al.

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