US PATENT SUBCLASS 370 / 906
.~.~.~ Fiber Data Distribution Interface (FDDI)

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

901  DF  WIDE AREA NETWORK {1}
902  DF  .~ Packet switching {1}
903  DF  .~.~ OSI Compliant Network {4}
906.~.~.~ Fiber Data Distribution Interface (FDDI)

DEFINITION

Classification: 370/906

Fiber Data Distribution Interface (FDDI):

(under subclass 903) Subject matter wherein the network elements are interconnected by counter rotating, dual ring fiber optic media wherein the communication on the network is controlled used a token passing protocol.