Audio system

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12223978
APP PUB NO 20230154482A1
SERIAL NO

17973651

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A voice output from an i-th audio source apparatus is adjusted with a frequency transfer function Wii(f) set in an i-th noise reduction filter and is output from an i-th speaker. In the noise reduction filter, a frequency transfer function Wii(f) is set in which the sound is made smaller at frequencies where the gain of the frequency transfer function Cim(f) from the SPKi to a user tends to be relatively larger than the gain of the frequency transfer function Cii(f) from the SPKi to the user, and the sound is increased at frequencies where the gain of Cim(f) tends to be relatively smaller than the gain of Cii(f), where m is an integer excluding i from 1 to n.

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Patent Owner(s)

  • ALPS ALPINE CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Saito, Nozomu Fukushima, JP 26 558
Tanno, Keita Tokyo, JP 6 8

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