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
Updating link state information in networks
Updating of bit allocations in a multicarrier modulation transmi
Upgraded telecommunication network
Upstream data transmission system for cable television
Upstream data transmission system with downloadable transmission
Upstream transmission using multiple transmission tags and downs
Usage parameter control apparatus for performing a plurality of
Use of a fractionally spaced equalizer to perform echo cancellat
Use of a single central transmit and receive mechanism for autom
Use of a tone bus to provide polling and data distribution appar