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. 29, 1998
Filed:
Nov. 08, 1996
Applicant:
Inventors:
John Elliott Whitecar, Plymouth, MI (US);
Andrew Cyril Krochmal, Plymouth, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
381 86 ; 381 59 ; 4552261 ;
Abstract
The connections of speakers in an automotive audio system are automatically checked during the assembly process to determine whether any speakers are shorted or have wires incorrectly connected to battery voltage or to ground. A signal diagnostic line can be used to indicate a plurality of different conditions. In addition, the actions of an audio limiting function can be monitored to detect shorts.