US PATENT SUBCLASS 370 / 439
.~.~ Control line is used to request or reserve access

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

431  DF  CHANNEL ASSIGNMENT TECHNIQUES {12}
438  DF  .~ Using a separate control line or bus for access control {1}
439.~.~ Control line is used to request or reserve access {1}
440  DF  .~.~.~> Dual bus dynamic queuing (i.e., DQDB)

DEFINITION

Classification: 370/439

Control line is used to request or reserve access:

(under subclass 438) Subject matter wherein the control line is used by a station to send a demand for having a channel assigned or for using a communication line.