US PATENT SUBCLASS 379 / 93.18
.~.~.~ Having tone code recognition for generating alphanumeric characters

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

90.01  DF  TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) {8}
93.01  DF  .~ Having transmission of a digital message signal over a telephone line {9}
93.17  DF  .~.~ Having station display {7}
93.18.~.~.~ Having tone code recognition for generating alphanumeric characters

DEFINITION

Classification: 379/93.18

Having tone code recognition for generating alphanumeric characters:

(under subclass 93.17) Subject matter including an arrangement for character or symbol pattern recognition to show letters of the alphabet or numerals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.27, for generating alphanumeric information by tone codes.

SEE OR SEARCH CLASS

345, Selective Visual Display Systems,

25+, for alphanumeric display and character generator.