US PATENT SUBCLASS 358 / 429
.~.~ Halftone or grey level processing

Current as of: June, 1999
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358 /   HD   FACSIMILE AND STATIC PRESENTATION PROCESSING

400  DF  FACSIMILE {17}
426  DF  .~ Time or bandwidth compression {7}
429.~.~ Halftone or grey level processing

DEFINITION

Classification: 358/429

Halftone or grey level processing:

(under subclass 426) Subject matter wherein time or bandwidth compression involves a signal representing a shade of gray between the darkest and the lightest elements of the image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

456+, for halftone signal processing in general.