Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1982-12-29
1986-10-28
Orsino, Jr., Joseph A.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358286, 358293, H04N 740
Patent
active
046202331
ABSTRACT:
A scanning array (12) comprising a plurality of photosensor elements (12a) is reciprocated perpendicular to the axis (12b) thereof to scan a rectangular area of an original document (69). After scanning the area, the document (69) is moved parallel to the axis (12b) of the scanning array (12) and the scanning array (12) reciprocated again to scan a next rectangular area. This process is continued until the entire document (69) is scanned. The photosensor elements (12a) produce data signals corresponding to incident light from the document (69) which are fed serially into an orthogonal conversion memory (26) in the column direction. The data signals are read out of the memory (26) in the row direction and run length encoded for transmission. Received data signals are run length decoded and fed into the memory (26) in the row direction and read out of the memory (26) in the column direction. The received data signals are then applied to a printing array (24) of printing elements (24a) which is reciprocated relative to a sheet of paper (78) in the same pattern as the scanning array (12) to reproduce an image represented by the received data signals. The data signals are subjected to orthogonal conversion for transmission and to reverse orthogonal conversion for reception, thereby increasing the data compression efficiency.
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Garwin et al., "Use of Tilted Arrays", IBM Tech. Disclosure Bulletin-vol. 20, No. 1, Jun. 1977, pp. 396-399.
Hara Kazuyuki
Hashimoto Takemi
Kondo Mitsuru
Ogawa Mutsuo
Alexander David G.
Orsino Jr. Joseph A.
Ricoh & Company, Ltd.
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