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:
Apr. 09, 2002
Filed:
Jul. 17, 1997
Artur Schaub, Wolfhausen, CH;
Remo Leber, Bubikon, CH;
Bernafon AG, , CH;
Abstract
With the method acoustic signals, e.g. in hearing aids, are processed in loudness-controlled manner in such a way that the loudness subjectively received by the hearing impaired person again always corresponds to the loudness received by listeners with normal hearing. Signal processing takes place without Fourier transformation and without subdivision of the signal into subband signals in iterative manner and completely in the time domain. This eliminates the disadvantage of unacceptably long signal delay times of known methods and permits a practical use. The apparatus for performing the method contains a processing stage ( ) for the iterative calculation of a loudness-characteristic control quantity (&psgr;) and a correcting filter stage ( ) controlled in time-dependent manner therewith. Compared with known methods, the inventive method requires only drastically reduced processing resources, which can mainly be attributed to the particularly efficient and unconventional implementation of the processing stages.