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

System for providing pots splitters externally with respect...

System for providing universal cross-connect connectivity in...

System identification method and apparatus by adaptive filter

Systems and methods for interfacing telephony devices with...

Systems and methods for managing digital subscriber line...