US PATENT SUBCLASS 370 / 903
.~.~ OSI Compliant Network

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.~.~ OSI Compliant Network {4}
904  DF  .~.~.~> Integrated Services Digital Network (ISDN)
905  DF  .~.~.~> Asynchronous Transfer Mode (ATM)
906  DF  .~.~.~> Fiber Data Distribution Interface (FDDI)
907  DF  .~.~.~> Synchronous Optical network (SONET)

DEFINITION

Classification: 370/903

OSI Compliant Network:

(under subclass 902) Subject matter wherein the communication system complies with a multilayer reference model as set forth by the Open System Interconnection standard.

(1) Note. The Open System Interconnection (OSI) Reference Model recommends a seven-layer model; Layer 1 to 7 are respectively called: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

(2) Note. The structured layer approach allows partitioning complex communication rules or protocols into independent functions which could be individually modified or updated without destabilizing the entire set of rules or protocols.