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:
Mar. 19, 2013
Filed:
Aug. 29, 2008
Gerhard Uwe Schmidt, Ulm, DE;
Guido Kolano, Salach, DE;
Gerhard Uwe Schmidt, Ulm, DE;
Guido Kolano, Salach, DE;
Harman International Industries, Incorporated, Stamford, CT (US);
Abstract
A calibration device automatically calibrates a telephone hands free system. The device includes a signal processor that processes a received telephone signal that may be converted into audible sound through the hands free system. A first telephone and a second telephone communicate with the signal processor. The first telephone is programmed to transmit a predetermined test signal to the second telephone through a wireless or physical medium. A comparator compares the received test signal to a predetermined reference signal at a hands free interface. The comparison determines a deviation from the reference signal. An adaptor modifies the processing of the digitized aural information based on the deviation.