Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1993-05-20
1994-07-05
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Picture signal generator
359 72, 359250, 359252, 359104, 355 32, 348761, H04N 1028, H04N 315, G02F 1135, C09K 1904
Patent
active
053272633
ABSTRACT:
An image processing apparatus comprises a liquid modulator having a photoconductive material including an image-writing plane, a liquid crystal layer laminated on the photoconductive material, a pair of electrodes sandwiching the photoconductive material and the liquid crystal layer, and a spacer inserted between the photoconductive material and one of the electrodes. Also provided are an analog writing system for analogously writing an original image in the light modulator; a digital reading system for digitally reading the image written in the light modulator; a processing section for image-processing the read image data; a digital writing system for digitally writing processed image data in the light modulator; and, an analog reading system for analogously reading an image written in the light modulator. The liquid crystal layer is either a phase-transition type liquid crystal, a p-type smectic A liquid crystal providing a storage function, or a ferroelectric liquid crystal providing a storage function. The phase-transition type liquid crystal is selected from a group consisting of (1) a p-type cholesteric liquid crystal and (2) a mixture of p-type cholesteric liquid crystal and p-type nematic liquid crystal. The ferroelectric liquid crystal is selected from a group consisting of (1) a chiral smectic C liquid crystal, (2) a mixture of chiral smectic C liquid crystal and non-chiral smectic C liquid crystal, and (3) a mixture of chiral smectic C liquid crystal and a photoactive material.
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Kako Noritoshi
Katagiri Masayuki
Noguchi Yoji
Coles Sr. Edward L.
Rogers Scott A.
Sharp Kabushiki Kaisha
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