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. 09, 2010
Filed:
Jun. 02, 2006
Daniel S Rokusek, Long Grove, IL (US);
Sang Y OH, Lake Zurich, IL (US);
David a Vanyek, Libertyville, IL (US);
Kevin L Weirich, Algonquin, IL (US);
Daniel S Rokusek, Long Grove, IL (US);
Sang Y Oh, Lake Zurich, IL (US);
David A Vanyek, Libertyville, IL (US);
Kevin L Weirich, Algonquin, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method () for controlling audio signals to an FM transmitter and a loudspeaker of a hands-free adapter first sends a first audio signal to the loudspeaker () and measures and records a loudspeaker audible artifact such as echo return loss () and/or echo tail length (). Next, the hands-free adapter sends a second audio signal to the FM transmitter and the loudspeaker () and measures and records an FM transmitter and loudspeaker audible artifact such as echo return loss () and/or echo tail length (). If the FM transmitter and loudspeaker audible artifact minus the loudspeaker audible artifact is greater than a threshold (), the hands-free adapter sends a third audio signal to the FM transmitter only (), and if the FM transmitter and loudspeaker audible artifact minus the loudspeaker audible artifact is not greater than the threshold, the hands-free adapter sends the third audio signal to both the FM transmitter and the loudspeaker ().