Repetitive readout of electrostatically stored information

Details Repetitive readout of electrostatically stored information Repetitive readout of electrostatically stored information

1979-10-12

1982-03-09

Orsino, Jr., Joseph A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

357 30, 358213, 365237, H04N 102

Patent

active

043192840

ABSTRACT:
Apparatus for continuously reading out the graphic information represented by a charge pattern on a dielectric film includes an integrated circuit array of field effect devices each having a source and drain in series with a respective p-n junction photodiodes. A bias voltage is connected across the field effect devices and respective photodiodes and a load impedance. A scanner positioned to scan a spot of light over the array of photodiodes causes conduction of currents through field effect devices which are rendered conductive by charges on the dielectric film to produce a video signal across the load impedance.

REFERENCES:
patent: 3344278 (1967-09-01), Yanai
patent: 3458689 (1969-07-01), Lynch
patent: 3770968 (1973-11-01), Hession et al.
patent: 3774168 (1973-11-01), Koo et al.
patent: 3904818 (1975-09-01), Kovac
patent: 4145721 (1979-03-01), Beaudoin et al.

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