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:
Jan. 06, 2015
Filed:
Jan. 20, 2010
Thomas Kaulberg, Smørum, DK;
Lars Skovby, Smørum, DK;
Thomas Kaulberg, Smørum, DK;
Lars Skovby, Smørum, DK;
Oticon A/S, Smorum, DK;
Abstract
The invention relates to a method of processing an audio signal in a portable listening device, the audio signal comprising a low frequency part having an LF-bandwidth Δfand a high-frequency part having a HF-bandwidth Δf. The invention further relates to a listening device and to a listening system. The object of the present invention is to improve performance or save power in a portable listening device. The problem is solved in that the method comprises a) providing an audio input signal consisting of said low frequency part having an LF-bandwidth Δf; b) performing at least one signal processing step on the low frequency part of the audio signal; and c) performing a bandwidth extension process on said low frequency part of the audio signal to generate said high-frequencyof the audio signal, thereby generating or regenerating said audio output signal with a full bandwidth Δfcomprising said LF-bandwidth Δfand said HF-bandwidth Δf. An advantage of this is that power consumption is reduced. The invention may e.g. be used for portable communication device, mobile telephones or listening devices, such as a hearing aids, ear protection devices, headsets, head phones, etc.