Masanobu Arai

Digital signal receiving circuit with means for controlling a baud rate sampling phase by a power of sampled signals

Radio communication method, radio communication system and wireless terminal

Method and system for radio communication and radio terminal

Subscriber line interface circuit for serving ISDN subscribers using echo cancellers and POTS subscribers

Circuit for cancelling whole or part of a waveform using nonrecursive and recursive filters

Phase-locked loop circuit having ring oscillator

Clock jitter suppressing circuit

Subscriber line interface circuit having means for combining DC and AC feedback signals

Echo canceller for bidirectional transmission on two-wire subscriber lines

Receiver capable of improving signal-to-noise ratio in reproducing digital signal