Two wire voice and data subscriber loop
Two-dimensional round-robin scheduling mechanism for switches wi
Two-hop collocated satellite communications system
Two-way CATV system using frequency division multiplexing
Two-way communications system and method of synchronizing
Two-way optical transmission system
Two-way transmission system
Two-wire extended serial bus communications system with collecti
Two-wire full duplex frequency division multiplex modem system h
Two-wire time-division multiplex method of full duplex transmiss
Unidirectional bus system using reset signal
Unidirectional data transmission system
Unique word detecting apparatus and unique word detecting method
Unit for switching data transmitted by asynchronous time-divisio
Unitary PCM rate converter and multiframe buffer
Universal high-speed span line switch
Universal protocol programmable communications interface
Universal SCSI electrical interface system
Unused time slot detection and selection in a mobile radio commu
UPC-based traffic control framework for ATM networks