US PATENT SUBCLASS 379 / 291
.~.~.~ With detail of crosspoint switching structure (e.g., crossbar)

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

242  DF  CENTRALIZED SWITCHING SYSTEM {15}
258  DF  .~ Switching controlled in response to called station addressing signal {9}
268  DF  .~.~ Having shared or common switching control {8}
291.~.~.~ With detail of crosspoint switching structure (e.g., crossbar) {1}
292  DF  .~.~.~.~> Electronic crosspoint (e.g., solid-state)

DEFINITION

Classification: 379/291

With detail of crosspoint switching structure (e.g., crossbar):

(under subclass 268) Subject matter particularly describing a feature of selection equipment for an element of a switching array.

SEE OR SEARCH THIS CLASS, SUBCLASS:

306, for crosspoint switch detail in other than common control equipment.

SEE OR SEARCH CLASS

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

112, for a telephone crossbar switch, per se.

340, Communications: Electrical,

825.79, for details of switching arrays or matrices, not elsewhere classifiable.