Facsimile signal coding system

Details Facsimile signal coding system Facsimile signal coding system

1976-10-29

1978-06-27

Murray, Richard

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 100

Patent

active

040979032

ABSTRACT:
A facsimile signal coding system for successively coding runs of black and white signals included in a facsimile signal obtained by scanning an original picture, in which the length and position on a scanning line of the runs of the black or white signal to be indicated by encoded codes are temporarily stored in a memory. Information of the run of the same state signal as an instant run of black or white signal to be coded and close to the instant run is taken out as reference run information from the memory. The length of the instant run of the black or white signal to be coded is predicted on the base of the reference run information. An error between the predicted run length and the length of the instant run of black or white signal to be coded is coded. When the error exceeds a predetermined value, the length of the instant run of the black or white signal may be coded in place of the error.

REFERENCES:
patent: 3769453 (1973-10-01), Bahl et al.
patent: 3937871 (1976-02-01), Robinson

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