Conversion of binary to multi-level image data

Details Conversion of binary to multi-level image data Conversion of binary to multi-level image data

1992-11-12

1994-10-11

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358400, H04M 122

Patent

active

053552334

ABSTRACT:
When binary image pixel data is converted into multi-level pixel data, the values of multi-level pixel data are previously set in predetermined registers. A circuit is provided for deciding whether or not the values set in the register are written in memory in accordance with the state of binary pixel data. N control circuits are provided in parallel, and N memory units to be respectively connected to the control circuits are also provided. This simultaneously multi-levelizes N items of binary pixel data.

REFERENCES:
patent: 4467366 (1984-08-01), Bobick et al.
patent: 4897799 (1990-01-01), Le Gall et al.
Patent Abstracts of Japan, vol. 015153 (Kokai 1989/159316), Feb. 1991.

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