US PATENT SUBCLASS 379 / 93.05
.~.~ Terminal interface circuitry

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}
93.05.~.~ Terminal interface circuitry {2}
93.06  DF  .~.~.~> Digital
93.07  DF  .~.~.~> To plural lines or networks

DEFINITION

Classification: 379/93.05

Terminal interface circuitry:

(under subclass 93.01) Subject matter having a specific electronic arrangement interrelating a device or equipment to the telephone line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

399, for connecting a telephone communications line to a central switching office or a subscriber station.

442, for connecting a device to the line by direct connection through the terminal.