US PATENT SUBCLASS 370 / 450
.~.~ Passing a signal identifying the idle or busy state of a channel (e.g., token passing)

Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

431  DF  CHANNEL ASSIGNMENT TECHNIQUES {12}
449  DF  .~ Polling {1}
450.~.~ Passing a signal identifying the idle or busy state of a channel (e.g., token passing) {2}
451  DF  .~.~.~> On bus {1}
457  DF  .~.~.~> Initialization or reinitialization of network

DEFINITION

Classification: 370/450

Passing a signal identifying the idle or busy state of a channel (e.g., token passing):

(under subclass 449) Subject matter in which a signal indicative of an occupancy or nonoccupancy state of a communication channel is sent to control access to the communication channel.

(1) Note. The signal identifying the idle or busy state of a channel is also called the token.