US PATENT SUBCLASS 358 / 456
.~.~.~.~ Halftone

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

400  DF  FACSIMILE {17}
443  DF  .~ Specific signal processing circuitry {7}
448  DF  .~.~ Image processing {12}
455  DF  .~.~.~ Gray level processing {2}
456.~.~.~.~ Halftone {4}
457  DF  .~.~.~.~.~> Dither matrix
458  DF  .~.~.~.~.~> Gradation or spatial processing
459  DF  .~.~.~.~.~> Variable halftone dot shape or size
460  DF  .~.~.~.~.~> Addressable storage

DEFINITION

Classification: 358/456

Halftone:

(under subclass 455) Subject matter where shades of gray between the darkest and the lightest elements of the image are represented by a pattern of "dots" of varying density.

SEE OR SEARCH THIS CLASS, SUBCLASS:

429, for halftone processing for bandwidth for time compression.