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:
Sep. 12, 2006
Filed:
Dec. 15, 2004
Peter M. Pavlov, Plantation, FL (US);
Jason D. Mcintosh, Weston, FL (US);
David M. Yeager, Boca Raton, FL (US);
Peter M. Pavlov, Plantation, FL (US);
Jason D. McIntosh, Weston, FL (US);
David M. Yeager, Boca Raton, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A speaker () having a diagnostic capability, as well as a circuit () and related methods () for performing speaker diagnostics based upon a driving-point impedance are provided. The speaker includes a flexible cone () and a voice coil () connected to the flexible cone for driving the flexible cone so as to convert electrical signals into sound. The speaker also includes a signal source () connected to the voice coil for supplying a test signal to the voice coil. The speaker further includes a signal sensor () electrically connected to the voice coil for sensing a response signal occurring in response to the test signal. Additionally, the speaker includes a condition determining module () for determining a driving-point impedance based upon the response signal and for comparing the driving-point impedance to a predetermined impedance to thereby determine a condition of the speaker.