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Class 381/318 - Feedback suppression


Subclass of Class 381 - Electrical audio signal processing systems and devices
Definition: Subject matter in which the particular kind of undesired
No. of applications: 99
Last issue date: 12/01/2011


1      
Application No.Application TitleIssue Date
20110293124FITTING DEVICE AND A METHOD OF FITTING A HEARING DEVICE TO COMPENSATE FOR THE HEARING LOSS OF A USER; AND A HEARING DEVICE AND A METHOD OF REDUCING FEEDBACK IN A HEARING DEVICE
A fitting device for fitting a hearing device to compensate for a hearing loss of a user is disclosed, the hearing device comprising a receiver and a microphone, wherein a feedback path exists between the receiver and the microphone, wherein the hearing device further c...
12/01/2011
20110249846METHODS AND APPARATUS FOR ALLOCATING FEEDBACK CANCELLATION RESOURCES FOR HEARING ASSISTANCE DEVICES
Disclosed herein, among other things, are methods and apparatus for allocating feedback cancellation resources for improved acoustic feedback cancellation for hearing assistance devices. In various embodiments, a hearing assistance device includes a microphone and a pro...
10/13/2011
20110249847METHODS AND APPARATUS FOR EARLY AUDIO FEEDBACK CANCELLATION FOR HEARING ASSISTANCE DEVICES
Disclosed herein, among other things, are methods and apparatus for improved feedback cancellation for hearing assistance devices. In various embodiments the present acoustic feedback cancellation system is configured to identify the onset of acoustic feedback. This ear...
10/13/2011
20110211715HEARING DEVICE WITH FEEDBACK-REDUCTION FILTERS OPERATED IN PARALLEL, AND METHOD
A hearing device has a signal-processing apparatus for processing an input signal into an output signal, and a feedback-canceller apparatus for reducing feedback artifacts on the basis of the input signal and the output signal. The feedback-canceller apparatus has an ad...
09/01/2011
20110194714HEARING DEVICE WITH FREQUENCY SHIFTING AND ASSOCIATED METHOD
A hearing device has a feedback suppression unit. The hearing device further has a low-pass filter characterized by a first cut-off frequency, which couples out a low-frequency signal component from an output signal of the hearing device, and a high-pass filter characte...
08/11/2011
20110194715METHOD FOR COMPENSATING FOR A FEEDBACK SIGNAL, AND HEARING DEVICE
Feedback in a hearing device and, more particularly, in a hearing aid should be compensated for before it becomes audible. To this end, a method is proposed for compensating for a feedback signal in a hearing device with an input-transducer apparatus, a signal-processin...
08/11/2011
20110188686METHOD FOR SUPPRESSING ACOUSTIC FEEDBACK IN A HEARING DEVICE AND CORRESPONDING HEARING DEVICE
A hearing device (HD) incorporates a method for adaptive cancellation of acoustic feedback (AF). The method comprises generating an estimated feedback signal (EF) and subtracting the estimated feedback signal (EF) from the microphone signal (MS) before feeding it to a s...
08/04/2011
20110188685METHOD FOR THE DETECTION OF WHISTLING IN AN AUDIO SYSTEM
A method for detecting whistling in an audio system includes determining an average frequency of an input signal of the audio system, sampling the input signal in consecutive blocks of at least one sample, wherein the average frequency is determined blockwise, and deter...
08/04/2011
20110150257ADAPTIVE FEEDBACK CANCELLATION BASED ON INSERTED AND/OR INTRINSIC CHARACTERISTICS AND MATCHED RETRIEVAL
The invention relates to an audio processing system for processing an input sound to an output sound. The invention further relates to a method of estimating a feedback transfer function in an audio processing system. The object of the present invention is to provide an...
06/23/2011
20110150231ACOUSTIC FEEDBACK EVENT MONITORING SYSTEM FOR HEARING ASSISTANCE DEVICES
The present disclosure relates to tracking of acoustic feedback events of a hearing assistance device, such as a hearing aid. Information about the acoustic feedback events is stored for analysis. Such information is useful for programming acoustic feedback cancellers a...
06/23/2011
20110116667METHOD AND APPARATUS TO REDUCE ENTRAINMENT-RELATED ARTIFACTS FOR HEARING ASSISTANCE SYSTEMS
A system providing method and apparatus to detect occurrence of an entrainment artifact and address it. The system analyzing a feedback canceller filter for certain characteristics that are associated with an entrained filter. When an entrained filter is detected, the f...
05/19/2011
20110026746METHOD FOR DETERMINING OF FEEDBACK THRESHOLD IN A HEARING DEVICE AND A HEARING DEVICE
A method for determining feedback thresholds in a plurality of frequency bands and/or at a plurality of frequencies processed by a hearing device is disclosed. The feedback thresholds are defined as gains, at which feedback occurs while a hearing device user is wearing ...
02/03/2011
20100329493HEARING APPARATUS AND METHOD FOR SUPPRESSING FEEDBACK IN A HEARING APPARATUS
A hearing apparatus and an associated method for suppressing feedback include a microphone emitting a microphone signal and a receiver picking up a receiver signal by subtracting a compensation signal from the microphone signal. The hearing apparatus includes a number o...
12/30/2010
20100310103METHOD FOR DETERMINING OF FEEDBACK THRESHOLD IN A HEARING DEVICE AND A HEARING DEVICE
A method for determining feedback thresholds in a plurality of frequency bands and/or at a plurality of frequencies processed by a hearing device is disclosed. The feedback thresholds are defined as gains, at which feedback occurs while a hearing device user is wearing ...
12/09/2010
20100296680METHOD FOR DETERMINING A MAXIMUM GAIN IN A HEARING DEVICE AS WELL AS A HEARING DEVICE
A method for determining a maximum gain is disclosed that is applicable in a forward signal path starting at a microphone (1) and ending at a receiver (11) of a hearing device, the maximum gain being a gain value at which just no feedback occurs. The metho...
11/25/2010
20100260365Configuration and Method for Detecting Feedback in Hearing Devices
A configuration and associated methods are used for detecting acoustic feedback in a hearing device. One embodiment contains a first feedback detection unit, which determines the probability of feedback, a second feedback detection unit, which determines a weighting fac...
10/14/2010
20100254555HEARING AID SYSTEM WITH FEEDBACK ARRANGEMENT TO PREDICT AND CANCEL ACOUSTIC FEEDBACK, METHOD AND USE
The invention relates to a hearing aid system with an electrical feedback cancellation path, for compensating acoustic feedback between an output transducer and an input transducer by subtracting an estimate of the acoustical feedback from a signal on the input side of ...
10/07/2010
20100246868METHOD FOR OPERATING A HEARING APPARATUS WITH AMPLIFIED FEEDBACK COMPENSATION AND HEARING APPARATUS
The goal is to make insertion of a hearing apparatus in an ear more comfortable, in particular with respect to feedback whistling. A method for operating a hearing apparatus by amplifying an input sound to form an output sound and compensating by a predefined amount for...
09/30/2010
20100232634ONLINE ANTI-FEEDBACK SYSTEM FOR A HEARING AID
The invention relates to a hearing aid system comprising an input transducer, a forward path, an output transducer and an electrical feedback path, the forward path comprising a signal processing unit for modifying an electrical input signal to a specific hearing profil...
09/16/2010
20100232632HEARING ASSISTANCE DEVICES WITH ECHO CANCELLATION
According to various embodiment of a method of operating a hearing instrument, an acoustic signal pathway is provided from a microphone through a signal processor to a hearing instrument (HI) receiver in an acoustic mode of operation. An RF transmit signal pathway is pr...
09/16/2010
20100226516METHOD FOR OPERATING A HEARING APPARATUS, COMPUTER PROGRAM PRODUCT FOR IMPLEMENTING THE METHOD AND HEARING APPARATUS WITH FEEDBACK SUPPRESSION
A method for operating a hearing apparatus includes determining feedback events, in which feedback suppression responds and/or in which feedback is detected above a predeterminable feedback threshold value, determining a frequency of the feedback events within a predete...
09/09/2010
20100208924POWER DIRECT BONE CONDUCTION HEARING AID SYSTEM
The hearing aid system (102) has a sound-to-vibration conversion circuitry including a microphone system (108), an electronic amplifier (114) and a vibrator (120). A housing (121) accommodates the vibrator (120). The vibrator (<...
08/19/2010
20100202641HEARING DEVICE WITH ADAPTIVE FEEDBACK SUPPRESSION
This invention relates to a hearing device for compensating hearing impairment of a user. The hearing device comprises an input signal converter for converting an acoustic signal to an electric signal, a signal processor, an output signal converter for converting a proc...
08/12/2010
20100177917ADAPTIVE FEEDBACK GAIN CORRECTION
A hearing aid includes a signal processor, a input transducer electrically connected to the signal processor, a receiver electrically connected to the signal processor, an adaptive feedback cancellation filter configured to suppress feedback from a signal path between t...
07/15/2010
20100177918Device and Method to reduce Ear Wax Clogging of Acoustic Ports, Hearing Aid Sealing System, and Feedback Reduction System
At least one exemplary embodiment that is directed to a conformal hearing aid comprising: a hearing aid body, where the hearing aid body houses a microphone and a receiver, where the microphone is positioned within the hearing aid body to measure acoustic signals from a...
07/15/2010
20100166198Hearing Instrument with Improved Initialisation of Parameters of Digital Feedback Suppression Circuitry
A method of modelling a feedback path from a receiver to a microphone in a hearing instrument, includes applying an electronic probe signal with an increasing level as a function of time to the receiver for conversion of the electronic probe signal into an acoustic prob...
07/01/2010
20100150388METHOD FOR FEEDBACK CANCELLING IN A HEARING DEVICE AND A HEARING DEVICE
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 ...
06/17/2010
20100111339System for managing feedback
Feedback detection, adaptive notch filtering, and gain adjustment are combined for managing feedback. Feedback detection includes detection of short term and long term spectral peaks and assessing their magnitude, shape, rate of growth, and power concentration ratio. A ...
05/06/2010
20100080398METHOD AND SYSTEM FOR HEARING DEVICE FITTING
The method for manufacturing an adjusted hearing device (1b) comprises the step of using first data (16a) obtained from a first hearing device (1a) adjusted to the preferences of a first user (5a) for adjusting a s...
04/01/2010
20100054513Hearing aid with an attenuation element
A shielding element and a decoupling element are integrated into a combined attenuation element. The shielding element may be a shielding foil, preferably made of copper. The attenuation element may include a flexible backing foil, preferably a plastic backing foil whic...
03/04/2010
20100034407ARRANGEMENT AND METHOD FOR REGULATION OF FEEDBACK SUPPRESSION IN HEARING DEVICES
The invention specifies a hearing device, especially an in-the-ear hearing aid, and a method for suppressing acoustic feedback, with at least one ultrasound signal being emitted by the hearing device. The ultrasound signal reflected and fed back from the environment of ...
02/11/2010
20100027823Hearing aid having an occlusion reduction unit and method for occlusion reduction
A method is described for reduction of occlusion effects in an acoustic appliance which closes an auditory channel, wherein an audio signal in the transmission path of the acoustic appliance is processed by a signal processing unit and is emitted via an output transduce...
02/04/2010
20100020996CODEBOOK BASED FEEDBACK PATH ESTIMATION
The invention relates to a hearing instrument for processing an input sound to an output sound according to a user's needs. The invention further relates to a method of operating a hearing instrument and to use of a hearing instrument. The object of the present inventio...
01/28/2010
20100020995SYSTEM FOR REDUCING ACOUSTIC FEEDBACK IN HEARING AIDS USING INTER-AURAL SIGNAL TRANSMISSION, METHOD AND USE
The invention relates to a hearing aid system comprising first and second spatially separated hearing instruments, the system being adapted for processing input sounds to output sounds according to a user's needs. The invention further relates to a method and use. The o...
01/28/2010
20100020979ADAPTIVE LONG-TERM PREDICTION FILTER FOR ADAPTIVE WHITENING
The invention relates to a hearing instrument for processing an input sound to an output sound according to a user's needs. The invention further relates to a method of estimating acoustic feedback in a hearing instrument. The object of the present invention is to reduc...
01/28/2010
20100002896Hearing Aid Having an Occlusion Reduction Unit and Method for Occlusion Reduction
A method is described for reduction of occlusion effects in an acoustic appliance which closes an auditory channel, wherein an audio signal in the transmission path of the acoustic appliance is processed by a signal processing unit and is emitted via an output transduce...
01/07/2010
20090323993HEARING AID WITH A REMOVABLY CONNECTED ELONGATE MEMBER
The present invention relates to a new type of hearing aid with a housing that is adapted for positioning in the ear canal of a user and attached to an elongate member that is adapted for positioning in the pinna outside the ear canal of the user. The elongate member is...
12/31/2009
20090316922SYSTEM FOR MEASURING MAXIMUM STABLE GAIN IN HEARING ASSISTANCE DEVICES
This disclosure relates to measurement of maximum stable gain of a hearing assistance device, including but not limited to hearing aids, as a function of frequency. In various approaches an adaptive filter with a variable step size is used to determine maximum stable ga...
12/24/2009
20090310805HEARING AID WITH ANTI-OCCLUSION EFFECT TECHNIQUES AND ULTRA-LOW FREQUENCY RESPONSE
An occluding hearing aid having anti-occlusion effect techniques combined with at least one improvement which, in the preferred embodiment, includes enhancement of acoustic output in the lower-midrange and bass frequency regions, typically between substantially 40 and 5...
12/17/2009
20090290735Concha/open canal hearing aid apparatus and method
An improved hearing aid and method that employs a combination microphone/speaker, sized to have the microphone inserted within the concha bowl of the outer ear and the speaker is inserted within which the opening of the ear canal such that it does not obstruct the same ...
11/26/2009
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