Fujitsu Corporation

Koichi Hanada

Kazuo Nagatani

Hiroyoshi Ishikawa

Hajime Hamada

Yasuyuki Oishi

Nobukazu Fudaba

Tokuro Kubo

Mitsuharu Hamano

Tohru Sasaki

Yuki Kanno

In an adaptive predistorter type distortion compensating apparatus for calculating a distortion compensating coefficient by using an adaptive algorithm so as to reduce an error between a reference signal and a feedback signal of a circuit which generates a distortion on the basis of the reference signal, and for compensating the distortion by providing the distortion compensating coefficient to the reference signal, a phase adjustment circuit is provided for determining a phase shift value which reduces a phase difference between a reference signal and a feedback signal, for correcting the phase of the reference signal or the feedback signal by the phase shift value, and for calculating the distortion compensating apparatus after the correction.

Distortion compensating apparatus

Growing community of inventors

Sapporo, Japan

Koichi Hanada