Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit
Reexamination Certificate
2008-08-05
2011-11-29
Goins, Davetta W (Department: 2614)
Electrical audio signal processing systems and devices
Hearing aids, electrical
Noise compensation circuit
C381S093000
Reexamination Certificate
active
08068629
ABSTRACT:
A hearing aid (200) with multiple microphones comprises a first microphone (1) for converting sound into a first audio signal, a second microphone (20) for converting sound into a second audio signal, directional processing means for combining the first and said second audio signal according to a mixing ratio to form a spatial signal, estimating means for estimating a first acoustic feedback signal entering the first microphone and a second acoustic feedback signal entering the second microphone, processing means (4) for processing said spatial signal by applying a gain not exceeding a resulting maximum gain limit to form a hearing loss compensation signal, wherein the resulting maximum gain limit is derived from the first and second acoustic feedback signals and the mixing ratio, and an output transducer (3) for converting the hearing loss compensation signal into an acoustic output. The invention further provides a method and a computer program product.
REFERENCES:
patent: 6219427 (2001-04-01), Kates
patent: 6498858 (2002-12-01), Kates
patent: 7688985 (2010-03-01), Roeck
patent: 2001/0002930 (2001-06-01), Kates
patent: 94/09604 (1994-04-01), None
patent: 99/26453 (1999-05-01), None
patent: 02/25996 (2002-03-01), None
patent: 2005091675 (2005-09-01), None
Rafaely, Robust compensation with adaptive feedback cancellation in hearing aids, Jan. 2003, Elsevier, Speech Communication 39, pp. 163-170.
Foeh Helge Pontoppidan
Klinkby Kristian Tjalfe
Norgaard Peter Magnus
Thiede Thilo Volker
Goins Davetta W
Le Phan
Sughrue & Mion, PLLC
Widex A/S
LandOfFree
Hearing aid and method of utilizing gain limitation in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hearing aid and method of utilizing gain limitation in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hearing aid and method of utilizing gain limitation in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4262515