US PATENT SUBCLASS 358 / 262.1
.~.~ Two level to three level

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}
262.1.~.~ Two level to three level

DEFINITION

Classification: 358/262.1

Two level to three level:

(under subclass 426) Subject matter wherein the excursions of the signal above its lower level or the average D.C. level of the signal is altered such that the signal level periodically alternates above and below a zero D.C. level.