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:
Jan. 01, 2013

Filed:

Feb. 16, 2012
Applicant:

Kazuya Iwata, Osaka, JP;

Inventor:

Kazuya Iwata, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An audio signal band expanding apparatus () includes a harmonic generator () that receives an input audio signal having a predetermined band and generates, based on the input audio signal, harmonic signals, and an adder () that adds the harmonic signals generated by the harmonic generator () to the input audio signal. The harmonic generator () simulates the input-output characteristics of a predetermined amplifier or that of a device to generate the harmonic signals from the input audio signal.


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