Pioneer Electronic Corporation

Atsushi Makino

Masayuki Kato

Shuichi Mori

Hisashi Kihara

Akira Kanagawa

Shinya Honjo

A digital graphic equalizer for obtaining a boost characteristic and an attenuation characteristic using band pass filters, each constituted by a digital filter, and an adder. For a boost characteristic, an input signal is supplied to first band pass filters and resultant filtered signals and the input signal are added by a first adder. For an attenuation characteristic, the output signal of a second adder is fed back to second band pass filters and resultant filtered signals and the input signal are added by a second adder.

Growing community of inventors

Kawagoe, Japan

Atsushi Makino