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11. 发明专利

DK2165567T3 Fremgangsmåde til feedbackophævelse i et høreapparat og et høreapparat 未知
公开(公告)号：DK2165567T3
公开(公告)日：2011-01-31
申请号：DK07729381
申请日：2007-05-22
申请人： PHONAK AG
发明人： KORL SASCHA
IPC分类号： H04R25/00

12. 发明专利

AT551692T 未知
公开(公告)号：AT551692T
公开(公告)日：2012-04-15
申请号：AT08708714
申请日：2008-02-05
申请人： PHONAK AG
发明人： DERLETH RALPH PETER , SCHUSTER GUIDO , ANSORGE RETO , GERBER RES , KORL SASCHA
IPC分类号： G10L21/02 , G10L21/0208 , G10L21/0216 , H04R3/00

13. 发明专利

AT484160T 未知
公开(公告)号：AT484160T
公开(公告)日：2010-10-15
申请号：AT07729381
申请日：2007-05-22
申请人： PHONAK AG
发明人： KORL SASCHA
IPC分类号： H04R25/00
摘要： A method and a hearing device for cancelling or preventing feedback are disclosed. The hearing device comprises a microphone (1), a transfer function (2) and a receiver (3), wherein the transfer function (2) defines relation between an input signal (12) of the hearing device and an output signal (13, 13′) of the hearing device. The method according to the present invention comprises the steps of estimating an external transfer function (21) of an external feedback path (11) defined by sound traveling from the receiver (3) to the microphone (1), estimating the input signal (12′) having no feedback components of the external feedback path (11) using an auxiliary signal (15), which does not comprise feedback components of the external feedback path (11), and using the estimated input signal (14) for estimating the external transfer function (21) of the external feedback path (11).

14. 发明专利

CA2648851A1 HEARING SYSTEM AND METHOD IMPLEMENTING BINAURAL NOISE REDUCTION PRESERVING INTERAURAL TRANSFER FUNCTIONS 未知
公开(公告)号：CA2648851A1
公开(公告)日：2007-11-15
申请号：CA2648851
申请日：2007-05-09
申请人： PHONAK AG
发明人： KORL SASCHA , DERLETH RALPH PETER , WOUTERS JAN , DOCLO SIMON , KLASEN J THOMAS , MOONEN MARC , VAN DEN BOGAERT TIM
IPC分类号： H04R25/00
摘要： The binaural hearing system (1) comprises ITF means (3a;3b) for providing at least one interaural transfer function (30a;30b); noise reduction means (5a;5b) for performing noise reduction in dependence of said at least one interaural transfer function. The method of operating a binaural hearing system (1) comprises the steps of providing at least one interaural transfer function (30a;30b); performing noise reduction in dependence of said at least one interaural transfer function. Preferably, said noise reduction means (5a;5b) comprises two binaural Wiener filters (5a,5b) each having a cost function comprising at least one term describing a desired interaural transfer function, wherein said at least one interaural transfer function provided by said ITF means (3a,3b) is assigned to said at least one term. Preferably, said cost function comprises a speech distortion term, a residual noise term and two ITF terms for preserving the interaural transfer functions of speech and noise components. This allows to preserve binaural cues while reducing noise.

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