Encoding apparatus

Details Encoding apparatus Encoding apparatus

1991-10-16

1992-09-22

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358160, H04N 2133

Patent

active

051502089

ABSTRACT:
A maximum value of each block after orthogonal transformation is detected, and an output word length after orthogonal transformation is controlled in accordance with the maximum value thus detected. In addition, a plurality of tables each having a plurality of quantizers combinedly used are prepared and a table is selected in accordance with the maximum value of each block, thereby selecting the optimum quantizer in accordance with the data amount thus generated.

REFERENCES:
patent: 4517596 (1985-05-01), Suzuki
patent: 5073821 (1991-12-01), Juri

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