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:
Jun. 17, 2014
Filed:
Jul. 23, 2009
Julien Laurent Bergere, Sai Kung, HK;
Julien Laurent Bergere, Sai Kung, HK;
Koninklijke Philips N.V., , NL;
Abstract
An audio system receives a multi-channel signal which is fed to a controller () that generates a first drive signal for a first sound emitter () by combining signals of a plurality of the channels. The first drive signal has a signal component contribution from a first bandwidth of each channel of the multi-channel signal. The multi-channel signal is also fed to another controller () which generates second drive signals for second sound emitters (-). The second drive signals are generated from a single channel signals of the multi-channel signal and in a second bandwidth having a lower cut-off frequency which is above 950 Hz for a 3 dB gain attenuation relative to an average gain for a frequency band extending 1 kHz above the lower cut-off frequency and higher than a lower cut-off frequency of the first bandwidth. A delay processor () introduces a delay for signal components of the first drive signal relative a corresponding second drive signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile