Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
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.
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Kaku Shinkyo
Rallapalli Krishna
Advanced Micro Devices , Inc.
Aka Gary T.
Coles Sr. Edward L.
King Patrick T.
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