The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 27, 2011

Filed:

Nov. 22, 2004
Applicants:

Masaru Kimura, Tokyo, JP;

Tomoko Ishii, Tokyo, JP;

Inventors:

Masaru Kimura, Tokyo, JP;

Tomoko Ishii, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 5/02 (2006.01); H04R 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

With stereophonic sound images of multi-channel audio signals well maintained, 2-channel system audio signals are created. An acoustic image creation system includes: a left-rear localization processing meansfor outputting a left-rear localization signal by summing together a left signaland a left-rear signal, among audio input signals including the left signal, a right signal, the left-rear signal, and a right-rear signal, and processing the summation result with a rear localization processing filter; a right-rear localization processing meansfor outputting a right-rear localization signal by summing together the right signaland the right-rear signal, and processing the summation result with a rear localization processing filter; and an acoustic image creation meansfor creating the surround sound image signals from the left signal, the right signal, the left-rear localization signal, and the right-rear localization signal


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