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Title:
BONE CONDUCTION HEARING AID SYSTEM
Document Type and Number:
WIPO Patent Application WO/2010/094812
Kind Code:
A3
Abstract:
The invention relates to a bone conduction hearing aid system, comprising: a right ear microphone arrangement (12A) and a left ear microphone arrangement (12B); a right ear signal processing unit (14A) and a left ear signal processing unit (14B) for processing the audio signals captured by the right ear microphone arrangement and the left ear microphone arrangement, respectively, from ambient sound; a right ear bone conduction output transducer (16A) for stimulating the user's right ear cochlea (20A) according to right ear output audio signals, and a left ear bone conduction output transducer (16B) for stimulating the user's left ear cochlea (20B) according to left ear output audio signals; a right ear cross-talk compensation filter unit (18A) for generating a right ear cross-talk compensation signal from the processed audio signals of the right ear signal processing unit according to an estimated transcranial transfer function (B12) from the right ear bone conduction output transducer to the left ear cochlea, and a corresponding left ear cross-talk compensation filter unit (18B); and means (22A, 28B, 30A, 30B, 32A, 32B) for subtracting the left ear cross-talk compensation signal from the processed audio signals of the right ear signal processing unit in order to generate the right ear output audio signals, and means (22B, 28B, 30A, 30B, 32A, 32B) for subtracting the right ear cross-talk compensation signal from the processed audio signals of the left ear signal processing unit in order to generate the left ear output audio signals.

Inventors:
HAMACHER VOLKMAR (CH)
Application Number:
PCT/EP2010/057929
Publication Date:
March 31, 2011
Filing Date:
June 07, 2010
Export Citation:
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Assignee:
PHONAK AG (CH)
HAMACHER VOLKMAR (CH)
International Classes:
H04R25/00
Foreign References:
EP2148527A12010-01-27
Other References:
DATABASE MEDLINE [online] US NATIONAL LIBRARY OF MEDICINE (NLM), BETHESDA, MD, US; March 1998 (1998-03-01), SNIK AF, BEYNON AJ, MYLANUS EA, VAN DER POUW CT, CREMERS CW: "Binaural application of the bone-anchored hearing aid", XP002616907, Database accession no. NLM9525238
JUN SEONG KIM ET AL: "A Novel Adaptive Crosstalk Cancellation using Psychoacoustic Model for 3D Audio", IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, 2007. HONOLULU, HI, USA,, 15 April 2007 (2007-04-15) - 20 April 2007 (2007-04-20), IEEE, PISCATAWAY, NJ, USA, pages I - 185, XP031462829, ISBN: 978-1-4244-0727-9
ABDULRAHMAN HAGR: "BAHA: Bone-Anchored Hearing Aid", INTERNATIONAL JOURNAL OF HEALTH SCIENCES, vol. 1, no. 2, 31 July 2007 (2007-07-31), pages 265 - 276, XP002616983
Attorney, Agent or Firm:
SCHORER, Reinhard et al. (Bauerstrasse 22, M√ľnchen, DE)
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