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.
Patent No.:
Date of Patent:
Aug. 15, 2006
Filed:
Sep. 28, 2000
Rustin W. Allred, Plano, TX (US);
Hirohisa Yamaguchi, Ibaraki, JP;
Yoshito Higa, Ibaraki, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A self-adaptive graphic equalizer operable to equalize the affects of an audio system on an audio signal includes an adaptive graphic equalizer having a plurality of equalizing filters, where the plurality of equalizing filters have different center frequencies equidistant from one another and spanning a predetermined audio bandwidth. Each equalizing filter is operable to filter an isub-band of the audio signal. A plurality of first filters are coupled to the audio system, each first filter is operable to filter an isub-band of an output signal of the audio system. A plurality of second filters are operable to filter an isub-band of the audio signal. A gain adjuster is operable to adjust the isub-band of the adaptive graphic equalizer in response to a difference in the isub-band of the filtered output signal from the plurality of first filters and the isub-band of the filtered audio signal from the plurality of second filters.