Invention Grant
US08422707B2 Spectral content modification for robust feedback channel estimation
有权
用于鲁棒反馈信道估计的频谱内容修改
- Patent Title: Spectral content modification for robust feedback channel estimation
- Patent Title (中): 用于鲁棒反馈信道估计的频谱内容修改
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Application No.: US12506424Application Date: 2009-07-21
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Publication No.: US08422707B2Publication Date: 2013-04-16
- Inventor: Thomas Bo Elmedyb , Jesper Jensen
- Applicant: Thomas Bo Elmedyb , Jesper Jensen
- Applicant Address: DK Smorum
- Assignee: Oticon A/S
- Current Assignee: Oticon A/S
- Current Assignee Address: DK Smorum
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: EP08104856 20080724
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04B15/00

Abstract:
A listening device includes an input and output transducers and a forward path defined between the transducers. The forward path may include a signal processing unit processing an SPU-input signal originating from the electric input signal in a time-frequency representation having successive time frames each having a frequency spectrum of the signal in the time frame in question. The signal processing unit includes a spectral content modification unit to modify values of the signal of one or more regions of the frequency spectrum of a given time frame so that the modified values are less correlated to the corresponding time-frequency regions of the input signal. A feedback path estimation unit is uses he improved processed output signal in the feedback estimation. The spectral content modification unit may base the modification on a model of the human auditory system so that the modifications are not perceptible by the user.
Public/Granted literature
- US20100020981A1 SPECTRAL CONTENT MODIFICATION FOR ROBUST FEEDBACK CHANNEL ESTIMATION Public/Granted day:2010-01-28
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