Circuit for conference telephony

Circuit for confirming a connection route of address control mem

Circuit for controlling two signals approximately 90 degree apar

Circuit for converting a logical signal into two balanced logica

Circuit for distributed collision detection

Circuit for eliminating spurious components resulting from burst

Circuit for freezing the data in an interface buffer

Circuit for generating a configuration signal for a network syst

Circuit for interfacing a digital signal processor to a serial i

Circuit for interfacing a processor to a line circuit

Circuit for logical stream sorting at CPU transfer time division

Circuit for multiframe synchronization

Circuit for nulling the talker's speech in a conference call and

Circuit for putting in conference a plurality of participants in

Circuit for recognizing data collisions in an optical data bus a

Circuit for separating voice, data and signaling information

Circuit for subscriber line interface circuits in a digital time

Circuit for testing digital lines

Circuit for the subscriber termination in an integrated services

Circuit for the subscriber termination in an integrated services