Wideband Gain Control Patents (Class 381/321)
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Patent number: 8055000Abstract: A multichannel hearing aid (20) comprises at least one frequency channel having a compressor (38) with a compression threshold at an output level below the hearing threshold and an attack time above 0.5 seconds whereby hearing of a sudden sound in a stationary sound environment is facilitated. With this compressor, the amplification of low signal levels may be increased compared to the prior art, as the compressor kicks in to generally suppress steady noises. The gain may generally be increased as high as feasible in view of the microphone baseline noise, which should preferably be kept below the hearing threshold. Thus the user of the hearing aid will generally have the option of a higher gain of low level sounds than generally feasible with prior art hearing aids.Type: GrantFiled: January 17, 2007Date of Patent: November 8, 2011Assignee: Widex A/SInventor: Carl Ludvigsen
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Publication number: 20110268301Abstract: A hearing aid has means (15) for detecting fast transients in the input signal and means (16, 12, 13) for attenuating the detected transients prior to presenting the signal with the attenuated transients to a user. Detection is performed by measuring the peak difference of the signal upstream of a band split filter bank (11) and comparing the peak difference against at least one peak difference limit. Then, if a transient is detected, a state machine (20) analyzes the peak level and the absolute average level of the signal and engages a gain calculator (12) to follow either the peak level or the absolute average level of the input signal for at least the duration of the transient in order to attenuate the transient. The engagement of the gain calculator (12) is performed in each frequency band dependent of the detected transient. The invention further provides a method for detecting fast transients.Type: ApplicationFiled: July 15, 2011Publication date: November 3, 2011Applicant: WIDEX A/SInventors: Jakob NIELSEN, Peter Magnus NORGAARD
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Patent number: 8050436Abstract: In acoustic systems, especially with hearing aids, feedback whistling keeps occurring. To avoid this, a limit gain frequency response of the amplification device, which represents the limits of feedback whistling, is thus recorded. On the basis of the curve recorded a required gain frequency response with a number of interpolation points is created, with each interpolation point having a predetermined minimum distance in each case to the limit gain frequency response in at least two different directions. This enables feedback whistling to be largely avoided, even with shifts in resonant frequencies.Type: GrantFiled: October 31, 2005Date of Patent: November 1, 2011Assignee: Siemens Audiologische Technik GmbHInventor: Robert Kasanmascheff
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Patent number: 8045739Abstract: In a method and hearing aid (200) for processing sound signals for hearing impaired persons by providing multi-band compression processing an input sound signal is filtered by a band split filter (202) into a number of frequency bands to obtain band split signals. A signal level for each of the band split signals is determined and the frequency bands are arranged into a number of groups. Based on the signal levels in each of the groups, a compressor input level for a number of band split compressors each associated to one of the frequency bands is calculated. A compressor gain for each band split compressor is determined based on the corresponding compressor input signal and the band split signals are amplified with the corresponding compressor gain and summed in a summing unit (208) to produce an output sound signal.Type: GrantFiled: February 29, 2008Date of Patent: October 25, 2011Assignee: Widex A/SInventors: Carsten Paludan-Mueller, Carl Ludvigsen, Anne Vikar Damsgaard
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Patent number: 8045737Abstract: According to the invention, a real ear acoustic coupling quantity representative of the acoustic coupling of a hearing instrument to the user's ear or an anatomical transfer quantity—for example the Real-Ear-to-Coupler-Difference (RECD), the Microphone Location Effect (MLE), the Coupler Response for Flat Insertion Gain (CORFIG), and/or the Real Ear Open Gain (REOG)—is obtained from a transfer function representative of an acoustic transfer from the receiver to the outer microphone such as a signal feedback threshold gain. The obtained quantity may be used for setting a fitting parameter of the hearing instrument, for example a gain correction.Type: GrantFiled: March 1, 2006Date of Patent: October 25, 2011Assignee: Phonak AGInventor: Alfred Stirnemann
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Publication number: 20110255722Abstract: A hearing instrument configured to receive power from an energy source, the energy having an output voltage, the hearing instrument includes an analog-to-digital converter for conversion of an input audio signal to a digital input signal, a digital signal processor for processing the digital input signal into a processed signal, an audio amplifier for amplifying the processed signal, a communication unit for wireless data communication between the hearing instrument and another device, and a stabilizing circuit having an energy storing element and a rectifying element, wherein the energy storing element is configured to supply power to one or more of the analog-to-digital converter, the digital signal processor, and the audio amplifier, and the rectifying element is configured to prevent the energy storing element from supplying power to the communication unit.Type: ApplicationFiled: April 9, 2011Publication date: October 20, 2011Inventor: Brian Dam PEDERSEN
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Patent number: 8041063Abstract: A hearing aid that can reflect setting change of the hearing aid responsive to a sound environment by the user as intended, prevent the user from feeling inconvenience or displeasure caused by changing setting of the hearing aid, and enable the user to easily change the setting is provided. A hearing aid of the invention includes a microphone 101 configured to generate an input signal from an input sound, a signal processing unit 120 configured to process the input signal and generating an output signal, and a receiver 103 configured to play an output sound from the output signal. The signal processing unit 120 determines a time response of the input signal based on a contact sound generated when the hearing aid is contacted in a predetermined time period, and changes setting of the hearing aid based on the time response.Type: GrantFiled: August 18, 2009Date of Patent: October 18, 2011Assignee: Panasonic CorporationInventors: Kenji Iwano, Atsunobu Murase
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Patent number: 8036392Abstract: The acoustic properties of so-called instant fit ear tips, which in contrast to otoplastics are not produced individually, should be able to be better taken into consideration when adjusting a hearing aid for an individual wearer. To this end a method is proposed in which an OLG measurement, in other words an open loop gain measurement, is performed on the hearing aid when it is being worn. The OLG measurement curve obtained is compared with an OLG reference curve. A value is ascertained from the comparison which represents the level of closure of the hearing aid or of its otoplastic in the ear of the wearer. On the basis of this value the gain of the hearing aid is finally corrected. Furthermore, a corresponding adjustment device is provided. It is thus possible in a simple manner to take into consideration the individual, current level of closure during the adjustment.Type: GrantFiled: September 6, 2007Date of Patent: October 11, 2011Assignee: Siemens Audioligische Technik GmbHInventor: Matthias Fröhlich
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Publication number: 20110235834Abstract: A hearing aid is described. The hearing aid includes a control surface and a control element. The hearing aid further includes a plurality of components in addition to the control surface and the control element. A portion of the control surface is configured to engage a portion of the control element. The control surface at least partially circumscribes at least one of the plurality of components.Type: ApplicationFiled: March 25, 2010Publication date: September 29, 2011Applicant: SONIC INNOVATIONS, INC.Inventors: Owen D. Brimhall, Craig M. Collotzi
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Patent number: 8023673Abstract: A sound processing process, device and software are disclosed which seek to improve pitch perception, with particular application to auditory prostheses. After input sound signals are processed into channels, an algorithm is applied to selectively increase the modulation depth of the envelope signals. In certain embodiments, the channelized signals are adjusted in timing so as to align the phase of modulated envelope signals in different channels. This results in provision of synchronous (phase aligned) modulation periodicity across channels and hence less pitch ambiguity for listeners to the processed signal, or for application of the signal to hearing prostheses such as cochlear implants. In some embodiments, a broadband envelope signal is used to modulate the level of the narrow band channel signals, so that voicing frequency modulation information in the broadband envelope signal is provided in all narrow band channel signals and the phase of modulated signals in the channels are aligned.Type: GrantFiled: September 28, 2005Date of Patent: September 20, 2011Assignee: Hearworks Pty. LimitedInventors: Andrew Vandali, Richard Van Hoesel, Peter Seligman
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Patent number: 8019103Abstract: The present application relates to a hearing aid with suppression of wind noise wherein wind noise detection is provided involving only a single comparison of the input signal power level at first low frequencies with the input signal power level at frequencies that may include the first low frequencies whereby a computational cost effective and simple wind noise detection is provided. The determination of relative power levels of the input signal reflects the shape of the power spectrum of the signal, and the detection scheme is therefore typically capable of distinguishing music from wind noise so that attenuation of desired music is substantially avoided.Type: GrantFiled: August 1, 2006Date of Patent: September 13, 2011Assignee: GN ReSound A/SInventor: James Mitchell Kates
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Patent number: 8019105Abstract: A hearing aid includes a microphone for conversion of sound into an input audiosignal, a signal processor for processing the input audiosignal, the signal processor including a compressor, and a receiver for conversion of the processed signal into sound, wherein the compressor is configured to adapt attack and release time constants in response to input signal fluctuations.Type: GrantFiled: March 29, 2006Date of Patent: September 13, 2011Assignee: GN Resound A/SInventor: James Mitchell Kates
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Publication number: 20110216929Abstract: An apparatus and method for outputting a sound with Hearing Aids Compatibility (HAC) in a mobile terminal. The sound output apparatus includes a modem chip including a first amplifier amplifying and transferring an electric signal to a switch, a switch that selectively connects an output line of the first amplifier to a receiver or a second amplifier, a second amplifier connected with the receiver and the switch and that amplifies and transfers an electric signal received from the first amplifier to the receiver when the switch connects the output line of the first amplifier to the second amplifier, and a receiver connected with the switch and the second amplifier and that converts and outputs an electric signal received from the first amplifier or the second amplifier into a sound. This allows for the stable transfer of a sound to hearing handicapped persons with HAC without distortion of the sound quality.Type: ApplicationFiled: March 3, 2011Publication date: September 8, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji Sang Jang, Chul Hyo Yoon, Jae Woon Park
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Publication number: 20110216927Abstract: A hearing system for use by a user is presented. The hearing system includes an external portion for placement external the user. The external portion includes a sound processing unit for providing amplified acoustic sound to an ear of the user. The hearing system further includes an implantable portion for implantation under the skin of the user. The implantable portion and the sound processing unit have magnetic characteristics such that a magnetic attraction exists there between to retain the sound processing unit in a desired position.Type: ApplicationFiled: March 2, 2011Publication date: September 8, 2011Applicant: VIBRANT MED-EL HEARING TECHNOLOGY GMBHInventor: Geoffrey R. Ball
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Patent number: 8014550Abstract: This invention relates to a system (100) for controlling gain function of a hearing aid. The system (100) comprises a microphone (102) converting a sound pressure to an input signal, a speaker (112) converting an output signal to a processed sound pressure, and a signal processing means (106) interconnecting the microphone (102) and the speaker (112) and processing the input signal to the output signal according to a control signal. The system (100) further comprises a signal analysis means (108) connecting to the microphone (102) and to the signal processing means (106) and comprising a controller means (124) generating the control signal based on detector means (128, 130, 120) responses to the input signal.Type: GrantFiled: December 19, 2006Date of Patent: September 6, 2011Assignee: Oticon A/SInventor: Lars Bramsløw
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Patent number: 8009842Abstract: Systems, devices, and methods are provided to inhibit apparent amplitude modulation in non-linear processing that causes distortion in a processed signal. One aspect of the invention includes a hearing aid. The hearing aid includes a microphone to receive an input signal, a speaker to reproduce the input signal, and a processor. The processor processes the input signal using a gain. The processor includes an inhibitor, which inhibits distortions, and an adjuster, which adjusts the gain. The inhibitor acts to smooth an envelope of the input signal to inhibit undesired modulation. The adjuster adjusts the gain if the envelope is either above or below a threshold. The hearing aid further includes a compression recapture system to supply the compressed portion of the input signal to more closely reproduce the actual input signal.Type: GrantFiled: July 11, 2006Date of Patent: August 30, 2011Assignee: Semiconductor Components Industries, LLCInventors: Garry Richardson, Jerry Wahl
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Publication number: 20110201393Abstract: In some aspects, a portable electronic device having a slidable upper housing and rear housing movable between an open position and a closed position, and a gain adjustment module. The gain adjustment module reduces the RF energy produced by the portable electronic device when the device is in the open position to ensure that the portable electronic device complies with Hearing Aid Compatibility (HAC) standards.Type: ApplicationFiled: November 12, 2010Publication date: August 18, 2011Applicant: RESEARCH IN MOTION LIMITEDInventors: Roberto Gautier, Jay Robert Spoto, Randall Scott Fraser
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Patent number: 7995781Abstract: In order to switch between different hearing programs to adjust to a momentary acoustic scene, a method for adjusting a hearing device, in which one of several possible hearing programs can be selected in order to adjust to a momentary acoustic scene, the method comprising the steps of detecting a desired hearing program change, changing parameters (b1, . . . , bm) of a transfer function provided between a microphone (M1) and a receiver of the hearing device in order to adapt it to the detected hearing program change, adjusting the parameters (b1, . . . , bm) to be changed from a momentary value to a desired value in such a manner that a smooth transition is perceived by the hearing device user while changing from a momentary hearing program to the desired hearing program, whereas each of the smooth transition is individually adjustable.Type: GrantFiled: December 10, 2009Date of Patent: August 9, 2011Assignee: Phonak AGInventors: Silvia Allegro Baumann, Stefan Daniel Menzl, Hilmar Meier
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Publication number: 20110188687Abstract: A hearing aid comprises a microelectromechanical systems microphone which receives inputs of external sound signals, converting the sound signals to analog signals, and outputting the analog signals; a hearing aid processor chip which converts the analog signals to digital signals, performs gain correction and digital signal processing to the digital signals, and converts the processed digital signals to analog signals; and a microelectromechanical system receiver which outputs the analog signals converted from the processed digital signals as sound signals, wherein the microelectromechanical system microphone is attached to a first surface of the hearing aid processor chip, and the microelectromechanical system receiver is attached to a second surface of the hearing aid processor chip, so that the microelectromechanical system microphone, the hearing aid processor chip, and the microelectromechanical system receiver are integrated as a single body.Type: ApplicationFiled: January 6, 2011Publication date: August 4, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-keun SONG, Dong-wook KIM, Yoon-seo KOO
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Patent number: 7978868Abstract: In one embodiment, an apparatus for processing sound includes a means (401) for analyzing a sound signal into a number of frequency bands and a means (403) for applying variable gain to each frequency band independently. Gain in applied under control of a number of gain comparator means (409) each of which generates a number of statistical distribution estimates in respect of each signal and compares those estimates to predetermined hearing response parameters stored in memory (411). The numerous gain compensated frequency bands are then combined (415) in order to generate a single sound signal. The apparatus may be implemented in dedicated hardware embodiment or by software running on a microprocessor.Type: GrantFiled: February 5, 2008Date of Patent: July 12, 2011Assignee: Cochlear LimitedInventors: Peter Blamey, Christopher John James, Hugh J. Mcdermott, Lois Martin, Konrad Wildi
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Patent number: 7974426Abstract: Disclosed is an IC chip type hearing aid module for use in a mobile communication terminal having a hearing aid circuit including: a first section having a resistor R1 and an inductor L1 which are connected in series on a first output line Receiver_P between the mobile communication terminal and an ear speaker; a second section having a resistor R4 and an inductor L2 which are connected in series on a second output line Receiver_N between the mobile communication terminal and the ear speaker; a third section having a resistor R2 and a capacitor C2 which are connected in series between an input terminal of the first section and an output terminal of the second section; and a fourth section having a resistor R3 and a capacitor C3 which are connected in series between an input terminal of the second section and an output terminal of the first section.Type: GrantFiled: December 11, 2009Date of Patent: July 5, 2011Assignee: Pantech & Curitel Communications, Inc.Inventor: Book-sung Park
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Publication number: 20110142272Abstract: A hearing assistance suitability determining device (120) according to the present invention is a hearing assistance suitability determining device (120) which determines a suitability (153) of a subject for dichotic hearing assistance, and includes: a hearing ability information obtaining unit (130) which obtains left-ear hearing ability information (150) and right-ear hearing ability information (151) each of which indicates a hearing ability for frequencies; a hearing ability type determining unit (131) which determines, among hearing ability types each of which is defined by a tendency in a change of the hearing ability with respect to the frequencies, a hearing ability type (152) of the hearing ability indicated by the left-ear hearing ability information (150) and the right-ear hearing ability information (151); and a suitability deciding unit (132) which determines, with reference to a suitability database (144), the suitability (153) of the subject for the dichotic hearing assistance based on a suitabType: ApplicationFiled: June 15, 2010Publication date: June 16, 2011Inventors: Yoshiaki Takagi, Gempo Ito, Eiji Noguchi, Takashi Katayama, Hikaru Takato
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Publication number: 20110142273Abstract: A hearing aid that can reflect setting change of the hearing aid responsive to a sound environment by the user as intended, prevent the user from feeling inconvenience or displeasure caused by changing setting of the hearing aid, and enable the user to easily change the setting is provided. A hearing aid of the invention includes a microphone 101 configured to generate an input signal from an input sound, a signal processing unit 120 configured to process the input signal and generating an output signal, and a receiver 103 configured to play an output sound from the output signal. The signal processing unit 120 determines a time response of the input signal based on a contact sound generated when the hearing aid is contacted in a predetermined time period, and changes setting of the hearing aid based on the time response.Type: ApplicationFiled: August 18, 2009Publication date: June 16, 2011Applicant: PANASONIC CORPORATIONInventors: Kenji Iwano, Atsunobu Murase
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Publication number: 20110135130Abstract: A hearing aid tailored to a hard-of-hearing person is designed using sampled-data control theory. The method is for designing an audio signal processing system for a hearing aid, wherein the system comprises an AD converter for converting an analog audio input signal (yc) inputted to the hearing aid into a digital audio input signal, a hearing aid digital filter (K(z)) for performing a signal processing on the digital audio input signal outputted from the AD converter, and a DA converter for converting a digital signal outputted from the hearing aid digital filter into an analog audio output signal to be outputted to the hard-of-hearing person.Type: ApplicationFiled: August 3, 2009Publication date: June 9, 2011Applicant: KYOTO UNIVERSITYInventors: Yutaka Yamamoto, Masaaki Nagajara
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Publication number: 20110135126Abstract: A hearing aid that analyzes a surrounding acoustic environment and automatically switches between a plurality of hearing aid processing reduces noise by limiting directionality, when the user is in a noisy outdoor location. However, in the case where directionality is limited to the front when the user is walking or the like, the user is put in extreme danger because he/she cannot notice sound of danger approaching from behind. Behavior analysis of identifying a walking state of the user is necessary in addition to environmental analysis, but typical walking detection using a sensor as in the case of a pedometer and the like is not applicable to a device worn at an ear such as a hearing aid. On the basis of an occurrence pattern of wind noise when walking, the walking state of the user is identified in the case where pulse-like wind noise occurs repeatedly. This enables walking detection to be performed using an existing structure, with there being no need to provide a sensor or the like.Type: ApplicationFiled: June 2, 2010Publication date: June 9, 2011Applicant: PANASONIC CORPORATIONInventor: Shinya Gozen
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Patent number: 7933419Abstract: The hearing device is operable in a fitting mode and in a listening mode and comprises a transducer for receiving, in the fitting mode, audio test signals, and for converting the audio test signals into signals to be perceived by the user in the fitting mode. It comprises a parameter memory means for storing parameter settings, which parameter settings are obtained from user input received through a user interface in response to the signals perceived by the user in the fitting mode. And it comprises a signal processor using the parameter settings for correcting audio signals at least in the listening mode. The user interface is comprised in the hearing device and the hearing device comprises an audio signal source, in which audio signal source the audio test signals are stored or generated.Type: GrantFiled: October 5, 2005Date of Patent: April 26, 2011Assignee: Phonak AGInventors: Hans-Ueli Roeck, Alfred Stirnemann, Hans Leysieffer
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Publication number: 20110091058Abstract: Disclosed herein, among other things, are methods and apparatus for an in-the-ear hearing aid with a capacitive sensor. The present subject matter includes various approaches to improved control of an in-the-ear (ITE) hearing aid with capacitive sensors. In various embodiments, the capacitive sensor serves as a capacitive switch or a plurality of capacitive switches that can be used together to support or perform one or more functions.Type: ApplicationFiled: October 15, 2010Publication date: April 21, 2011Applicant: Starkey Laboratories, Inc.Inventors: Michael Karl Sacha, Robert P. Jacoby
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Publication number: 20110091059Abstract: Disclosed herein, among other things, are methods and apparatus for a behind-the-ear hearing aid with a capacitive sensor.Type: ApplicationFiled: October 15, 2010Publication date: April 21, 2011Applicant: Starkey Laboratories, Inc.Inventor: Michael Karl Sacha
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Publication number: 20110081033Abstract: An audio transducing processor can be adjusted under conditions based on the subjectivity of an actual wearer and can improve the wearer's comfort. A method for adjusting an audio transducing processor provided with a cochlear implant for augmenting audition by giving audio information as stimulus pulses to a cochlea of a wearer can comprise an audiometry step for finding an audible sound range of the wearer using frequency and sound pressure as variables, and adjusting the audio transducing processor on the basis of hearing acuity data obtained from the audiometry step.Type: ApplicationFiled: September 7, 2010Publication date: April 7, 2011Applicant: HAMAMATSU FOUNDATION FOR SCIENCE AND TECHNOLOGY PROMOTIONInventor: Shigeyoshi Kitazawa
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Publication number: 20110075871Abstract: A hearing aid has a suspension portion received in the wearer's concha bowl and an electronics portion. The suspension portion is formed of a flexible rubbery material, while the electronics portion includes a shell formed of a rigid plastic material. The suspension portion is provided as a ring having an annulus, and bears off a tragus contact area, an antitragus contact area and an antihelix contact area to support the receiver in a suspended, cantilevered position within the ear canal. The microphone can be within the flexible ring housing portion. The hearing aid makes much more comfortable contact with the concha bowl.Type: ApplicationFiled: September 30, 2010Publication date: March 31, 2011Applicant: INTRICON CORPORATIONInventors: Robert J. Fretz, Derek Pfeffer
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Publication number: 20110051964Abstract: The adjustment of the signal processing carried out by a hearing aid to the individual hearing loss of a user is intended to be simplified. For this purpose, a number of predefined adjustment programs, from which the user selects a suitable program by operating an operating element, are provided in the hearing aid. Neither a visit to a hearing aid acoustician nor special adjustment devices is/are required for adjustment.Type: ApplicationFiled: August 30, 2010Publication date: March 3, 2011Applicant: SIEMENS MEDICAL INSTRUMENTS PTE. LTD.Inventors: Mark Balke, Ulrich Giese
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Publication number: 20110019848Abstract: A hearing aid (101) comprises a microphone (121) configured to convert sound into an electrical signal, a processor (105) disposed inside a main body case (102), a first volume adjuster (104) having a variable resistor, and a receiver (123) configured to convert an electrical signal into sound. The processor (105) has an amplifier (135) configured to amplify an electrical signal from the microphone (121), a second volume adjuster (105b) configured to set a degree of amplification by the amplifier (135), and a controller (130) configured to control the second volume adjuster (105b) and the amplifier (135).Type: ApplicationFiled: February 17, 2010Publication date: January 27, 2011Inventors: Shigekiyo Fujii, Hiroshi Kondo, Yasushi Ueda, Yasushi Imamura, Kazutaka Maruoka
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Publication number: 20110013793Abstract: A manually-actuatable volume adjuster for a hearing aid and a hearing aid with the volume adjuster are user friendly, durable, hardly prone to errors, miniaturizable and energy-saving. The adjuster includes a manually-actuatable pushbutton switch and an infrared sensor for acquiring orientation and/or position of a manual movement carried out for the actuation. The infrared sensor is only activated while the pushbutton switch is actuated and/or during a restricted time period following that actuation. The hearing aid with the adjuster includes standard sensors as an infrared sensor and as a pushbutton switch. The infrared sensor permits construction of the adjuster without moveable mechanical actuating elements and avoids touch surfaces or contact surfaces susceptible to wear-and-tear. The increased energy consumption of an infrared sensor is counteracted by the functional combination with the pushbutton switch.Type: ApplicationFiled: July 16, 2010Publication date: January 20, 2011Applicant: SIEMENS MEDICAL INSTRUMENTS PTE. LTD.Inventors: HARALD KLEMENZ, PEI CHYI KRISTY LIM
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Publication number: 20110013794Abstract: A method for processing and controlling sound signals in a hearing aid is provided. The method comprises estimating a first (102) and a second (104) signal level of an electric input signal (101) based on a first (103) and a second (105) signal level estimator adapted for responding according to a first and a second speed respectively, where the second speed is lower than the first speed and where the estimated second signal level is subtracted from the estimated first signal level, thereby forming a third signal level (106). Subsequently a first and a second compressor gain control output are determined in a first (107) and second (109) compressor based on said third and second signal level respectively. Then the first and second compressor gain control outputs are summed and hereby a net gain control signal (111) is created. Finally the electric input signal is amplified in accordance with the net gain control signal and thereby creating an electric output signal (112).Type: ApplicationFiled: September 22, 2010Publication date: January 20, 2011Applicant: Widex A/SInventors: Ole Hau, Carl Ludvigsen
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Publication number: 20100303269Abstract: The method for adjusting a hearing device to the hearing preferences of a user of said hearing device comprises the steps of a) classifying a hearing loss of said user according to one of N pre-defined hearing loss classes, wherein N?3; b) obtaining, in dependence of said one hearing loss class, a gain model. The hearing system according to the invention comprises a sound generating unit for generating test sounds; a user interface for receiving user input from a user of said hearing system; a control unit operationally connected to said sound generating unit and to said user interface; wherein said control unit is adapted to classifying a hearing loss of said user—in dependence of said test sounds and said user input—according to one of N pre-defined hearing loss classes, wherein N?3; and said control unit is adapted to obtaining—in dependence of said one hearing loss class—a gain model. A simplified hearing device fitting can be achieved.Type: ApplicationFiled: May 18, 2007Publication date: December 2, 2010Applicant: PHONAK AGInventor: Herbert Baechler
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Publication number: 20100266153Abstract: Electronics for altering the audio frequency response of a micro-speaker without modifying the micro-speaker itself; the micro-speaker having a resonant peak region. In one embodiment the electronics includes a first circuit for flattening the frequency response curve up to the resonant peak region, and a second circuit for flattening the frequency response curve for audio frequencies higher than this region. Preferably, the extent of the flattened response over such range of frequencies is in the range of plus or minus 3 dB. The first circuit includes one of the group consisting of a high pass filter and a low pass filter, while the second circuit includes the other of this group. Each filter yields an integer multiple of 6 dB per octave slope. In another embodiment, for correcting hearing loss, a high pass filter is connected to the micro-speaker to progressively attenuate the frequency response curve as the frequency decreases.Type: ApplicationFiled: April 15, 2009Publication date: October 21, 2010Inventors: Garth W. Gobeli, Stephen L. Mills
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Publication number: 20100246866Abstract: A method and apparatus for operation of a hearing aid 205 with signal processing functions performed with an array processor 220. In one embodiment, a reconfiguration module 250 allows reconfiguration of the processors 220 in the field. Another embodiment provides wireless communication by use of earpieces 105, 110 provided with antennas 235 in communication with a user module 260. The method includes steps of converting analog data into digital data 915 filtering out noise 920 and processing the digital data in parallel 925 compensating for the user's hearing deficiencies and convert the digital data back into analog. Another embodiment adds the additional step of reconfiguring the processor in the field 1145. Yet another embodiment adds wireless communication 1040-1065.Type: ApplicationFiled: June 12, 2009Publication date: September 30, 2010Applicant: SWAT/ACR PORTFOLIO LLCInventors: Allan L. Swain, Gibson D. Elliot
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Patent number: 7796770Abstract: The invention regards a method for sound processing in an audio device wherein an audio signal is provided and the audio signal is frequency shaped according to the need of a user of the audio device and the frequency shaped signal is served at the user in a form perceivable as sound. According to the invention at least two different frequency shaping schemes are available and a choice is made of the frequency shaping scheme to be used.Type: GrantFiled: December 21, 2005Date of Patent: September 14, 2010Assignee: Bernafon AGInventors: Monika Bertges Reber, Matthias Schefer
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Publication number: 20100226517Abstract: The capabilities of a helix hearing instrument may expanded with a behind-the-ear accessory module. The module accommodates additional batteries and a variety of accessory functions including an external volume control.Type: ApplicationFiled: March 6, 2009Publication date: September 9, 2010Applicant: Siemens Hearing Instruments. Inc.Inventor: Lavlesh Lamba
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Publication number: 20100202642Abstract: A method for measuring sound pressure at a tympanic membrane of a wearer's ear including a high frequency range with a hearing assistance device. The hearing assistance device comprises a processor connected to a sensor in the ear canal. The device provides a measure of the sound pressure level at the tympanic membrane of the wearer using a null frequency and a null Q measured at a distant position away from the tympanic membrane. The method does not require a precise knowledge of the ear canal, nor does it require an elaborate calibration step. In various embodiments, the present approach works at low and high frequencies.Type: ApplicationFiled: January 11, 2010Publication date: August 12, 2010Applicant: Starkey Laboratories, Inc.Inventors: Janice LoPresti, Tao Zhang
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Patent number: 7773763Abstract: The present invention relates to a binaural hearing aid system comprising a first hearing aid and a second hearing aid, each of which comprises a microphone and an A/D converter for provision of a digital input signal in response to sound signals received at the respective microphone in a sound environment, a processor that is adapted to process the digital input signals in accordance with a predetermined signal processing algorithm to generate a processed output signal, and a D/A converter and an output transducer for conversion of the respective processed sound signal to an acoustic output signal, and a binaural sound environment detector for binaural determination of the sound environment surrounding a user of the binaural hearing aid system based on at least one signal from the first hearing aid and at least one signal from the second hearing aid for provision of outputs for each of the first and second hearing aids for selection of the signal processing algorithm of each of the respective hearing aid proType: GrantFiled: June 23, 2004Date of Patent: August 10, 2010Assignee: GN ReSound A/SInventor: Brian Dam Pedersen
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Publication number: 20100177918Abstract: 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 an ambient environment, and where the receiver is positioned within the hearing aid body to emit acoustic signals toward a tympanic membrane of a user; an expandable element, where the expandable element is operatively connected to the hearing aid body, and where the expandable element is configured to encompass a circumferential portion of the hearing aid body when expanded; and an inflation management system, where the inflation management system is configured to expand the expandable element when actuated.Type: ApplicationFiled: October 15, 2009Publication date: July 15, 2010Applicant: PERSONICS HOLDINGS INC.Inventors: John P. Keady, Gary Hoshizaki, John G. Casali
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Patent number: 7756276Abstract: A method of adjusting frequency-dependent amplification in an audio amplification apparatus. The audio amplification apparatus includes a forward transfer path (2) connectable to an output transducer, the forward transfer path including a frequency transposing element. The method includes the steps of: presenting stimuli to the output transducer at a plurality of frequencies; adjusting the stimulus level (C) at each frequency to meet a predefined loudness perception level or detection threshold of the listener; deriving an equal loudness contour of output transducer levels from the adjusted stimuli levels; and deriving the frequency-dependent amplification of levels of input signals (I) at each frequency.Type: GrantFiled: March 23, 2005Date of Patent: July 13, 2010Assignee: Phonak AGInventors: Adam Hersbach, Hugh McDermott, Andrea Simpson
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Patent number: 7747032Abstract: A transducer assembly may include a first transducer having a first front volume, a first back volume and a first port acoustically coupled to the first front volume; and a second transducer having a second front volume, a second back volume and second port acoustically coupled to the second front volume. The first front volume and the second front volume are acoustically coupled to increase the effective back volume of both the first transducer and the second transducer. An optional signal processing circuit may be used to control the output of the first transducer based upon a signal received from the second transducer.Type: GrantFiled: May 9, 2006Date of Patent: June 29, 2010Assignee: Knowles Electronics, LLCInventors: John Zei, Dennis R. Kirchhoefer, Evan Llamas-Young
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Patent number: 7738665Abstract: There is provided a method for providing hearing assistance to a user (101), comprising capturing audio signals by a microphone arrangement (26) and transmitting the audio signals by a transmission unit (102) via a wireless audio link (107) to a receiver unit (103), analyzing the audio signals by a classification unit (134) prior to being transmitted in order to determine a present auditory scene category from a plurality of auditory scene categories, setting by a gain control unit (126) located in the receiver unit (103) the gain applied to the audio signals according to the present auditory scene category determined by the classification unit, and stimulating the user's hearing by stimulating means (136) worn at or in a user's ear according to the audio signals from the gain control unit (126).Type: GrantFiled: June 1, 2006Date of Patent: June 15, 2010Assignee: Phonak Communications AGInventors: Evert Dijkstra, Francois Marquis
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Publication number: 20100128912Abstract: Embodiments of the invention provide an amplifier including a gain control circuit having a gain measurement circuit as part of a feedback loop. The gain measurement circuit generates an attenuated output signal, based on the gain of the amplifier circuit, which is used to generate a gain control signal. One amplifier includes a first attenuator enabling primary compression and a second attenuator as part of a gain measurement circuit. In some cases the attenuation factors of the first and second attenuators may be proportional or substantially the same. In some embodiments one or more output stages (e.g., differential amplifiers) are provided to generate the gain control signal based on differential combinations of an audio output, the attenuated output signal, and a primary threshold signal. A ratio of the gains of the two or more comparing amplifiers can set a primary compression ratio in some cases.Type: ApplicationFiled: November 21, 2008Publication date: May 27, 2010Inventor: Peter Schiller
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Publication number: 20100092018Abstract: In order to switch between different hearing programs to adjust to a momentary acoustic scene, a method for adjusting a hearing device, in which one of several possible hearing programs can be selected in order to adjust to a momentary acoustic scene, the method comprising the steps of detecting a desired hearing program change, changing parameters (b1, . . . , bm) of a transfer function provided between a microphone (M1) and a receiver of the hearing device in order to adapt it to the detected hearing program change, adjusting the parameters (b1, . . . , bm) to be changed from a momentary value to a desired value in such a manner that a smooth transition is perceived by the hearing device user while changing from a momentary hearing program to the desired hearing program, whereas each of the smooth transition is individually adjustable.Type: ApplicationFiled: December 10, 2009Publication date: April 15, 2010Applicant: PHONAK AGInventors: Silvia Allegro-Baumann, Stefan Daniel Menzl, Hilmar Meier
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Patent number: 7672468Abstract: In a method for adjusting the transmission characteristic of a hearing aid, the characteristic being defined by hearing aid-specific parameters, a data processing device is used that has a screen and a pointer device. On a graphics user interface of the data processing device, an object displayed in a first area of the screen is selected and copied with the pointer device and the copy is moved into the second area of the screen and stored there, with the transmission characteristic of the hearing aid being able to be changed by the stored object. Settings selected for a hearing aid or a hearing program thus can be transferred quickly and easily to a second hearing aid or a second hearing program.Type: GrantFiled: October 20, 2005Date of Patent: March 2, 2010Assignee: Siemens Audiologische Technik GmbHInventors: Eduard Kaiser, Reinier Kortekaas, Sören Kuhrt, Michael Sieber
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Patent number: 7664281Abstract: Method and apparatus for determination of gain margin of a hearing assistance device under test. In varying examples, the impulse response for multiple levels can be taken and used to arrive at a gain margin. The method and apparatus, in various examples, process critical portions of the resulting data for efficient processing and to increase accuracy of measurements. The method and apparatus performing a plurality of measurements to determine impulse responses and to derive gain margin as a function of frequency therefrom. The present subject matter includes principles which may are adapted for use within a hearing assistance device using a single white noise stimulus, according to one example. The principles set forth herein can be applied to occluding and non-occluding hearing device embodiments. Additional method and apparatus can be found in the specification and as provided by the attached claims and their equivalents.Type: GrantFiled: March 4, 2006Date of Patent: February 16, 2010Assignee: Starkey Laboratories, Inc.Inventor: Ivo Leon Diane Marie Merks
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Patent number: 7657046Abstract: Disclosed is an IC chip type hearing aid module for use in a mobile communication terminal having a hearing aid circuit including: a first section having a resistor R1 and an inductor L1 which are connected in series on a first output line Receiver_P between the mobile communication terminal and an ear speaker; a second section having a resistor R4 and an inductor L2 which are connected in series on a second output line Receiver_N between the mobile communication terminal and the ear speaker; a third section having a resistor R2 and a capacitor C2 which are connected in series between an input terminal of the first section and an output terminal of the second section; and a fourth section having a resistor R3 and a capacitor C3 which are connected in series between an input terminal of the second section and an output terminal of the first section.Type: GrantFiled: December 12, 2005Date of Patent: February 2, 2010Assignee: Pantech & Curitel Communications, Inc.Inventor: Book-sung Park