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:
May. 28, 2019
Filed:
Oct. 10, 2012
Ams Ag, Unterpremstätten, AT;
Horst Gether, Straden, AT;
ams AG, Unterpremstaetten, AT;
Abstract
A noise-cancellation system for a headphone (HP) that comprises a speaker () for emitting a speaker signal, a microphone () for receiving a microphone signal and a proximity sensor () for a receiving a proximity signal comprising quantitative information on the distance of the an object (OBJ) from the proximity sensor () has a signal processing device (). The signal processing device () is designed to generate a compensation signal based on the microphone signal, wherein the generation of the compensation signal comprises filtering with an adjustable filter characteristic. The compensation signal is combined with an audio signal in order to generate the speaker signal. The filter characteristic is adapted based on the distance.