Data-recording apparatus

Details Data-recording apparatus Data-recording apparatus

1982-06-14

1985-02-19

Martin, John C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358260, 371 37, H04N 712

Patent

active

045009260

ABSTRACT:
A data recording apparatus has an optical scanner for optically scanning a document and for outputting an image signal corresponding to the document pattern, a modified Huffman coding circuit for compressing the image information output by the optical scanner for each scanning line, and a page buffer memory for storing the image signal compressed by the modified Huffman coding circuit as line image information items. The line image information items are read out from the page buffer memory in units of a fixed number of bits, and are divided into image data pieces of a fixed bit length. Dummy data is added to the terminal end image data which does not have the fixed bit length, thus forming a terminal end image data of the fixed bit length. Error correction data is set for each image data piece.

REFERENCES:
patent: 3273121 (1966-09-01), Taylor
patent: 3623155 (1971-11-01), Hsaio et al.
patent: 4044382 (1977-08-01), Yagishita
patent: 4149142 (1979-04-01), Kageyama et al.
patent: 4270148 (1981-05-01), Adachi
patent: 4320511 (1982-03-01), Koga et al.
patent: 4386373 (1983-05-01), Komdo et al.

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