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:
Jan. 23, 2007
Filed:
Oct. 27, 2004
Campbell Kelly, Frauenfeld, CH;
Manville Smith, Coconut Creek, FL (US);
Bruce Macmillan, Phoenix, AZ (US);
Felix Matro, Phoenix, AZ (US);
Carl Lindquist, Phoenix, AZ (US);
Campbell Kelly, Frauenfeld, CH;
Manville Smith, Coconut Creek, FL (US);
Bruce Macmillan, Phoenix, AZ (US);
Felix Matro, Phoenix, AZ (US);
Carl Lindquist, Phoenix, AZ (US);
JL Audio, Inc., Miramar, FL (US);
Abstract
A system () and method () of equalizing an audio signal from a factory installed radio () using an interface unit () between the factory installed radio and a replacement load () can include the steps of measuring () an existing equalization for the factory installed radio in the interface unit, analyzing () the existing equalization to provide a measure of an existing frequency response suited for an old load, generating () a substantially inverted frequency response to the existing frequency response, and applying () the inverted frequency response to the replacement load to provide a desired response. Such as system can include an interface unit () having an automatic input level control unit (), an analog to digital converter or digitizer (), a DSP () providing an output to a DAC (), a level booster unit () and a processor such as a microcontroller unit ().