Subscriber interface circuit
Subscriber line circuit having an improved loop current supply c
Subscriber line interface circuit
Subscriber line interface circuit
Subscriber line interface circuit and transformer therefor north
Subscriber line interface circuit providing regulated current
Subscriber line interface circuit with improved d.c. balance
Subscriber line interface circuit with reduced on-chip power dis
Subscriber telephone line interface circuit with reduced power s
Supply circuit device for a user's telephone circuit, having a l
Switch controller and method
Switching type echo canceler
Switching voltage regulator for an interface circuit in a teleph
System and method for an efficiently constrained frequency-domai
System and method for avoiding false convergence in the presence
System and method for cooling of network interface device
System and method for distributing network communication...
System and method for echo cancelling and mobile communications
System and method for performing echo cancellation in a communic
System for bidirectional digital transmission with echo cancella