System for coding information change picture elements in facsimi

Details System for coding information change picture elements in facsimi System for coding information change picture elements in facsimi

1979-08-02

1986-11-18

Britton, Howard

Facsimile and static presentation processing

Facsimile

Recording apparatus

375122, H04N 1415, H04N 1417

Patent

active

RE0322911

ABSTRACT:
A system for coding information change picture elements in a facsimile signal, which is employed for coding the address of each information change picture element assuming information different from that of an immediately preceding picture element on each scanning line. A distance between the information change picture element and a final reference information change picture element selected from the information change picture elements of an immediately preceding scanning line and, if necessary, said scanning line is encoded in a manner to minimize the number of bits of each code word.

REFERENCES:
patent: 3813485 (1974-05-01), Arps
patent: 3825832 (1974-07-01), Frei
patent: 3830965 (1974-08-01), Beaudette
patent: 3927251 (1975-12-01), White
patent: 3937871 (1976-02-01), Robinson
patent: 3950609 (1976-04-01), Tanaka
patent: 3956580 (1976-05-01), Murayama
An article by H. E. White, M. D. Lippman, and K. H. Powers entitled, "Dictionary Look-Up Encoding of Graphic Data", p. 267, of the book, Picture Bandwidth Compression", edited by T. S. Huang and O. J. Tretiak, Gordon and Breach Science Publishers, New York 1972.
An article by I. Gorog, P. M. Heyman, H. K. Kim and M. D. Lippman, entitled, "An Experimental Low-Cost Graphic Information Distribution System Terminal", published on p. 14 of the 1971 Society for Information Display (SID), International Symposium Digest of Technical Papers, vol. 2, p. 14, (May 4th, 5th and 6th, 1971).

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