US PATENT SUBCLASS 358 / 443
.~ Specific signal processing circuitry

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

400  DF  FACSIMILE {17}
443.~ Specific signal processing circuitry {7}
444  DF  .~.~> Memory interface
445  DF  .~.~> Signal sampling and conversion
446  DF  .~.~> Signal voltage or gain control
447  DF  .~.~> Signal enhancing
448  DF  .~.~> Image processing {12}
468  DF  .~.~> Facsimile control unit
469  DF  .~.~> Carrier wave modulation

DEFINITION

Classification: 358/443

Specific signal processing circuitry:

(under subclass 400) Subject matter including specific circuitry for facsimile but not restricted in usability to any single system, signal generator or recorder specifically provided elsewhere in this class.

SEE OR SEARCH CLASS

348, Television,

607+, for noise elimination in a television systems and subclasses 678+ for automatic gain control circuitry used in television systems.