Image transmission apparatus

Details Image transmission apparatus Image transmission apparatus

1992-08-28

1996-07-16

Rogers, Scott A.

Facsimile and static presentation processing

Natural color facsimile

Specific image-processing circuitry

358539, 358435, 3582611, H04N 164, H04N 1327, H04N 1333

Patent

active

055372317

ABSTRACT:
An image transmission apparatus includes a color codec section for performing color image coding of a color image, a run-length codec section for performing run-length coding of a monochrome image, and a switching unit for arbitrarily switching the codec sections and to perform coding in units of pages in one communication cycle depending on whether each page is a color image or a monochrome image. Whether each page is constituted by a color image or a monochrome image is set in advance, and corresponding information is stored in a memory. Coding is performed by a coding scheme set for each page, and the coded data is transmitted. Alternatively, coded data obtained by both the codec sections and are stored in a hard disk, and the data coded by a coding scheme which an apparatus at the other end of a communication line can handle is read out and transmitted.

REFERENCES:
patent: 4682215 (1985-05-01), Adachi
patent: 4739397 (1988-04-01), Hayashi
patent: 4799110 (1989-01-01), Hisada et al.
patent: 4862254 (1989-08-01), Takada
patent: 4939767 (1988-05-01), Saito
patent: 5027221 (1990-10-01), Hisatake
patent: 5130818 (1992-07-01), Tadokoro et al.
patent: 5220417 (1993-06-01), Sugiura
patent: 5349450 (1994-09-01), Yoshioka
C'T Magazin Fur Computer Technik, No. 5, May 1991, pp. 208-214, Glass, "Ein Blick in PC-gestutze und Stand-alone Faxgerate".

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