Inventor

SHIRAKI KOICHI

JP3 patents

Patents

3 patents

US5884194AMar 16, 1999

Hands-free telephone

MITSUBISHI ELECTRIC CORP19 citations79

US5119423AJun 2, 1992

Signal processor for analyzing distortion of speech signals

MITSUBISHI ELECTRIC CORP12 citations71

US6445792B1Sep 3, 2002

Echo canceller for decreasing a deterioration factor of a speech quality

MITSUBISHI ELECTRIC CORP13 citations69