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Time Lines

Air leak self-diagnosis for a communication device

Invented by: Jorge L. Garcia
Plantation, FL

Peter M. Pavlov
Plantation, FL

Jianfeng Shi
Sunrise, FL

David M. Yeager
Boca Raton, FL

Originally Assigned to: Motorola, Inc.
Schaumburg, IL
[Now assigned to . . .]

Issued:2009-08-04
Filed:2004-04-23
Application No:10830669
Examined by:Chin; Vivian

A communication device (100) is provided with a technique (400) for self-diagnosing an air leak. The leak is determined without having to open the communication device by applying a temporary excitation signal to the speaker terminals (402) to produce a damped response (404) and then monitoring the damped response (406) of the speaker.

[pdf] U.S. Pat. No. 7,570,769

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