Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1980-11-14
1982-07-06
Masinick, Michael A.
Facsimile and static presentation processing
Facsimile
Recording apparatus
357 30, H04N 530
Patent
active
043386334
ABSTRACT:
A frame integrator for integrating each of the outputs of an array of radiation detectors whose output is obtained by the charge-injection-device technique. An array of analog integrators is connected using row and column interconnection techniques with an array of radiation detectors. The output from each radiation detector is sampled periodically and the detector returned to its unexposed condition to avoid saturation of the detector. The analog integrator associated with each detector integrates the sampled output of the detector to increase the effective sensitivity of the detector and to reduce the noise in the output. Each analog integrator consists of a precharged capacitor which is discharged through a field effect transistor in an amount proportional to the output of the associated radiation detector.
REFERENCES:
patent: 4032976 (1977-06-01), Levine
patent: 4079422 (1978-03-01), Anagnostopoulos
patent: 4117514 (1978-09-01), Terui
patent: 4220976 (1980-09-01), Koch
patent: 4274113 (1981-06-01), Ohba
Koch, "Charge-Injection Device with CCD Readout" IEEE Journal of Solid-State Circuits, vol. SC-14 No. 3, Jun. 1979, pp. 604-608.
Tseng et al., "Charge Transfer and Blooming Suppession of Charge Transfer Photodiode Area Array" IEEE Jour. of Solid State-Circuits, vol. SC-15, No. 2, Apr. 1980, pp. 206-213.
Masinick Michael A.
Northrop Corporation
Sokolski Edward A.
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