Predictine coding/decoding system for block-formed picture signa

Details Predictine coding/decoding system for block-formed picture signa Predictine coding/decoding system for block-formed picture signa

1985-11-12

1988-01-19

Goldberg, E. A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, 358138, H04N 712

Patent

active

047207434

ABSTRACT:
A predictive coding/decoding system for block-formed picture signals includes predictive coding and decoding units in transmitter and receiver sides, respectively: each of the predictive coding and decoding units is provided with a control pulse generator responsive to a horizontal synchronization pulse in the picture signal to produce a sampling signal and a select signal, and a pair of selectors together responsive to the select signal to select a sum of a prediction signal and a prediction error signal or a fixed value as an input of a prediction circuit, the pair of selectors selecting the fixed value for a partial picture block including a fraction of pixels due to the block formation.

REFERENCES:
patent: 4193096 (1980-03-01), Stoffel
patent: 4383272 (1983-05-01), Netravali et al.
patent: 4460923 (1984-07-01), Hirano et al.
patent: 4562468 (1985-12-01), Koga

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