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. 25, 2011
Filed:
Feb. 29, 2008
Carsten Paludan-mueller, Olystykke, DK;
Carl Ludvigsen, Valby, DK;
Anne Vikar Damsgaard, Stenlose, DK;
Carsten Paludan-Mueller, Olystykke, DK;
Carl Ludvigsen, Valby, DK;
Anne Vikar Damsgaard, Stenlose, DK;
Widex A/S, Lynge, DK;
Abstract
In a method and hearing aid () for processing sound signals for hearing impaired persons by providing multi-band compression processing an input sound signal is filtered by a band split filter () into a number of frequency bands to obtain band split signals. A signal level for each of the band split signals is determined and the frequency bands are arranged into a number of groups. Based on the signal levels in each of the groups, a compressor input level for a number of band split compressors each associated to one of the frequency bands is calculated. A compressor gain for each band split compressor is determined based on the corresponding compressor input signal and the band split signals are amplified with the corresponding compressor gain and summed in a summing unit () to produce an output sound signal.