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:
Oct. 29, 2002
Filed:
May. 23, 2001
Rainer Albus, Dormettingen, DE;
Norbert Niemczyk, Pforzheim, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
An audio system, in particular for motor vehicles, having a loudspeaker installation for supplying sound to an audio chamber and a control unit with a signal detection unit for receiving microphone signals from at least one microphone exposed to the audio chamber outputting the signal to an evaluation unit which extracts interference signals from the microphone signals. The control unit produces control signals on the basis of these interference signals in order to operate the loudspeaker installation. To reduce the complexity for installation of such an audio system, at least one tweeter is connected in the loudspeaker installation as a microphone.