Differential coding apparatus having an optimum predicted value

Details Differential coding apparatus having an optimum predicted value Differential coding apparatus having an optimum predicted value

1987-03-13

1988-05-10

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358133, 375 27, H04N 7137

Patent

active

047439670

ABSTRACT:
A differential coding apparatus having a plurality of predictive function computing circuits and an optimum predicted value determining circuit. The optimum predicted value determining circuit determines the optimum predicted value from the plurality of predicted values by using a quantized prediction error used as an output signal of the apparatus, instead of a local decoded signal, and carries out the determining operation of the optimum predicted value in parallel with the quantized prediction error producing operation.

REFERENCES:
patent: 4144543 (1979-03-01), Koga
patent: 4437119 (1984-03-01), Matsumoto et al.
patent: 4460923 (1984-07-01), Hirano et al.
patent: 4542411 (1985-09-01), Imanaka
patent: 4546386 (1985-10-01), Matsumoto et al.
patent: 4571618 (1986-02-01), Hatori
patent: 4633325 (1986-12-01), Usubuchi
Benischka, European Search Report, Vienna

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