Method and apparatus for predictive coding

Details Method and apparatus for predictive coding Method and apparatus for predictive coding

1988-02-11

1989-08-01

Shoop, Jr., William M.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358135, 341143, 375 27, H04N 712

Patent

active

048537802

ABSTRACT:
In transmitting a residual signal determined by the difference between an input signal and a predictive signal, a comparative signal based on the input signal is applied to a plurality of predictors having different respective predictive functions or coefficients, the resulting predictive output signals from the predictors, respectively, are compared with the comparative signal to provide respective difference signals, and the predictor corresponding to the smallest of the difference signals with a predetermined time delay, for example, the next preceding sampling of the input signal, is employed as the source of the predictive signal to be subtracted from the input signal for determining the transmitted residual signal.

REFERENCES:
patent: 3898378 (1975-08-01), Hinoshita et al.
patent: 4385393 (1983-05-01), Chaure et al.
patent: 4588981 (1986-05-01), Senn
patent: 4791404 (1988-12-01), Hollister
patent: 4792787 (1988-12-01), Speiser et al.

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