Data services retransmission procedure

Data signal switching systems

Data storing system for a communication control circuit

Data stream concentrator providing attribute data storage and gr

Data subsystem traffic control apparatus and method

Data switching arrangement

Data switching device

Data switching nodes

Data switching system and method

Data synchronous transfer system using a fiber distributed data

Data terminal control unit including table for efficiently makin

Data terminal equipment and data transmission control method

Data terminal interface circuit to a telephone transmission line

Data throttling system for a communications network

Data transfer between high bit rate buses via unshielded low bit

Data transfer between high bit rate buses via unshielded low bit

Data transfer connection between a primary device and a pluralit

Data transfer control system

Data transfer method and apparatus

Data transfer method and apparatus for communication between a p