Digital loop synchronization circuit
Digital loop transceiver for interfacing a digital PABX to a dig
Digital loop transceiver having a power up/down circuit
Digital memory providing fixed and variable delays in a TASI sys
Digital mobile radio network station with speech signal exchange
Digital mobile radio system interfacing an ISDN standard bus sys
Digital mobile station using presettable timeslot counter for co
Digital modulation method for standard broadcast FM subcarrier
Digital multi-customer data interface
Digital multiplex device
Digital multiplexer
Digital multiplexer for PCM voice channels having a cross-connec
Digital multiplexer with increased channel capacity
Digital multiplexer with logically allocatable channels and bit
Digital multiplexing and demultiplexing system
Digital packet switching networks
Digital PBX system
Digital phase correlator
Digital private branch exchange
Digital private branch exchange and method of manufacturing same