US PATENT SUBCLASS 370 / 440
.~.~.~ Dual bus dynamic queuing (i.e., DQDB)

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  DF  .~.~ Control line is used to request or reserve access {1}
440.~.~.~ Dual bus dynamic queuing (i.e., DQDB)

DEFINITION

Classification: 370/440

Dual bus dynamic queuing (i.e., DQDB):

(under subclass 439) Subject matter wherein a first bus carries information in time slots and a second bus carries time slot reservation and request signal for controlling access of information in the time slot of the first bus.

(1) Note. DQDB stands for distributed queue dual bus.