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. 17, 2010
Filed:
May. 24, 2005
Anthony D. Janke, Chandler, AZ (US);
Ryan J. Perkofski, Phoenix, AZ (US);
Anthony D. Janke, Chandler, AZ (US);
Ryan J. Perkofski, Phoenix, AZ (US);
Rockford Corporation, Tempe, AZ (US);
Abstract
A system and method is provided to produce a flatter frequency response from an audio source that has a non-flat frequency response and, as such, has missing spectral content. The system and method achieves a flatter frequency response by characterizing the frequency response of the audio source based upon a reference input signal. This reference input signal is used to establish a reference frequency response, which is stored in a memory and used to select equalizer settings. The system restores missing spectral content by way of summing multiple input signals from the audio source. The system then normalizes the frequency response based on characterizations of the signal by utilizing equalizer settings from memory.