Analog/digital image processor apparatus with liquid crystal lig

Details Analog/digital image processor apparatus with liquid crystal lig Analog/digital image processor apparatus with liquid crystal lig

1990-12-11

1993-08-10

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

359 72, 359250, 359252, 358 44, 35821313, H04N 1028, H04N 315, H04N 530, H04N 907, G02F 1135

Patent

active

052354377

ABSTRACT:
An image processing apparatus includes a light modulator, an analog writing system for analogously writing an image of an original in the light modulator, a digital reading system for digitally reading the written image out of the light modulator, a processing section for processing the read image data, a digital writing system for digitally writing the processed image in the light modulator, and an analog reading system for analogously reading the image written on the light modulator. The light modulator includes a photoconductive material, a liquid crystal layer laminated on the photoconductive material, and a pair of electrodes sandwiching the photoconductive material and the liquid crystal layer. The liquid crystal layer can provide a storage function so as to enable the reading and writing of the image from the same direction.

REFERENCES:
patent: 3761172 (1973-10-01), Letzer
patent: 4150396 (1979-04-01), Hareng et al.
patent: 4515879 (1985-05-01), Kuehnle et al.
patent: 4533215 (1985-09-01), Trias et al.
patent: 4831452 (1989-05-01), Takanashi et al.
patent: 4945423 (1990-07-01), Takanashi et al.
Patent Abstracts of Japan vol. 11, No. 142 (P-573) May 9, 1987 & JP-A-61 278 826 (NEC Corp) Dec. 9, 1986.
Patent Abstracts of Japan vol. 8, No. 192 (P-298) Sep. 4, 1954 & JP-A-59 081 627 (Nippon Denki KK) May 11, 1984.

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