Method and device for decoding two-dimensional facsimile signals

Details Method and device for decoding two-dimensional facsimile signals Method and device for decoding two-dimensional facsimile signals

1983-08-19

1985-12-31

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 140

Patent

active

045624844

ABSTRACT:
A method and device for decoding two-dimensionally encoded digital facsimile signals. The method includes (a) accumulating the run lengths of color change picture elements in the reference line, (b) decoding a codeword to generate a displacement value, (c) combining the accumulated run length of a reference line color change picture element and a displacement value to obtain accumulated run lengths of coded line color change picture elements, and (d) determining the difference between accumulated run lengths of a coded line color change picture element. The difference is the decoded data. The device has a control logic, a reference line processor for generating the accumulated run lengths of color change picture elements in the reference line, a coded line processor for generating displacement values from the encoded codewords, and a combining part for combining the reference line accumulated run lengths and the displacement values to obtain the accumulated run lengths of color change picture elements in the coded line and for determining the differences between coded line accumulated run lengths, which are the decoded run lengths of the color units in the coded line.

REFERENCES:
patent: 3830965 (1974-08-01), Beaudette
patent: 3927251 (1975-12-01), White et al.
patent: 3991267 (1976-11-01), Beaudette
patent: 4040093 (1977-08-01), Nakagome et al.
patent: 4048656 (1977-09-01), Ishii et al.
patent: 4115815 (1978-09-01), Nakagome et al.
patent: 4117517 (1978-09-01), Shintani et al.
patent: 4156880 (1979-05-01), Yamada
patent: 4212035 (1980-07-01), Nakagome et al.
patent: 4212036 (1980-07-01), Nakagome et al.
patent: 4245257 (1981-01-01), Yamazaki et al.
patent: 4258392 (1981-03-01), Yamazaki et al.
patent: 4486784 (1984-12-01), Abraham et al.

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