Frequency Transposition Patents (Class 381/316)
  • Patent number: 10142742
    Abstract: In one embodiment, an audio system can replace a portion of an audio signal within a first range of frequencies, with an amplitude modulated noise signal comprising frequencies within the first range of frequencies and having a volume envelope corresponding to a volume envelope of the audio signal within a second range of frequencies.
    Type: Grant
    Filed: January 1, 2017
    Date of Patent: November 27, 2018
    Inventor: Dean Robert Gary Anderson
  • Patent number: 10142743
    Abstract: In one embodiment, an audio system can generate a parametrically formulated noise signal which can be mixed with an audio signal or acoustic signal. According to an embodiment, a parametrically formulated noise signal can be configured to have a power spectrum amplitude that is a function of frequency. According to an embodiment, a parametrically formulated noise signal can have a power spectrum amplitude across a range of frequencies that is a function of an individual's hearing thresholds across the range of frequencies.
    Type: Grant
    Filed: January 1, 2017
    Date of Patent: November 27, 2018
    Inventor: Dean Robert Gary Anderson
  • Patent number: 10123132
    Abstract: According to an embodiment, an auditory device for generating an electrode stimulation signal is disclosed. The device includes a filter bank configured to filter an incoming audio signal into a plurality of band pass limited audio signals, each band pass limited audio signal relating to an audio frequency band. The device further includes a processor configured to extract an onset time for firing an electrode in accordance with rate of change of a band pass limited audio signal and/or a derived band pass limited audio signal satisfying a predetermined criterion, and a signal generator for generating the electrode stimulation signal for the electrode corresponding to the band pass limited audio signal and/or derived band pass limited audio signal in accordance with the determined onset time. The device includes a plurality of implantable stimulation electrodes configured to deliver the electrode stimulation signal to a region of cochlea.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: November 6, 2018
    Assignee: Oticon Medical A/S
    Inventor: Bradford Backus
  • Patent number: 10104480
    Abstract: Synthetically generated signals are reproduced via a binaural hearing system, which includes two hearing devices. After reproducing a first signal via the first hearing device a reproduction of a second signal via the second hearing device is also carried out delayed by a defined time interval. The additional time delay is to be quantified such that the impression of a sound amplification is produced with a hearing system wearer.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: October 16, 2018
    Assignee: Sivantos GmbH
    Inventors: Ulrich Kornagel, Wolfgang Sörgel
  • Patent number: 10097938
    Abstract: An electronic device and a sound signal processing method for improving sound perception of a hearing-impaired user are provided. The electronic device of the present disclosure includes a sound input unit comprising sound input circuitry configured to detect a sound and to convert the sound into a first sound signal and a processor which is electrically connected to the sound input unit, the processor configured to receive the first sound signal and to perform a predetermined signal processing on the first sound signal to generate a second sound signal, wherein the signal processing includes detecting a frequency band with a level equal to or greater than a predetermined value in a first frequency band above a predetermined cutoff frequency of the first sound signal, generating harmonic signals including a plurality of frequency bins that are identical in level with a signal in the detected frequency band, and overlapping the harmonic signals with the first sound signal.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: October 9, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaeseong Lee, Kyoungho Bang, Kyuhan Kim, Juhwan Woo, Namil Lee, Hyunchul Yang, Hochul Hwang
  • Patent number: 10091589
    Abstract: A hearing prosthesis, the hearing prosthesis including a plurality of sound capture devices and a determinator configured to generate a parameter indicative of an orientation of the plurality of sound capture devices relative to a reference, wherein the hearing prosthesis is configured to adjust a direction of focus of the hearing prosthesis based on at least the parameter.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: October 2, 2018
    Assignee: Cochlear Limited
    Inventors: Oliver Ridler, Martin James Cosenza
  • Patent number: 10085099
    Abstract: The application relates to a hearing aid system comprising a hearing aid device comprising a configurable signal processing unit, a programming device configured to program the configurable signal processing unit, and a communication link allowing the exchange of data between the hearing aid device and the programming device. The application further relates to a method of programming configurable signal processing unit to provide an increased speech intelligibility by frequency lowering. The hearing aid system is configured to program the configurable signal processing unit of the hearing device according the claimed method. The invention may e.g. be used in hearing aids.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: September 25, 2018
    Assignees: Bernafon AG, Oticon A/S
    Inventors: Martin Kuriger, Christophe Lesimple, Neil Hockley, Claus Forup Corlin Jespersgaard, Thomas Ulrich Christiansen
  • Patent number: 10034089
    Abstract: In various embodiments, a circuit arrangement is provided. The circuit arrangement includes a sensor set up to provide an analogue signal, an analogue/digital converter set up to receive the analogue signal and to provide a first signal, and a first filter set up to receive a signal based on the first signal and to provide a second signal. The first filter is set up in such a manner that the second signal is allowed through without amplification or substantially without amplification in a frequency range of approximately 20 Hz to approximately 10 kHz, and the second signal has a gain of greater than 0 dB at least above a predefined frequency which is greater than approximately 20 kHz.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: July 24, 2018
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Dietmar Straeussnigg, Elmar Bach, Alessandro Caspani, Andreas Wiesbauer
  • Patent number: 9959783
    Abstract: In general, in one aspect, a method performed by one or more processes executing on a computer systems includes receiving an audio signal comprising a range of audio frequencies including high frequencies and low frequencies, converting a first portion of the range of audio frequencies into haptic data, shifting a second portion of the range of audio frequencies down to lower audio frequencies, and presenting at least one of the converted first portion and the shifted second portion to a human user. Other implementations of this aspect include corresponding systems, apparatus, and computer program products.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: May 1, 2018
    Assignee: APPLE INC.
    Inventor: Gregory F. Hughes
  • Patent number: 9794698
    Abstract: A method includes programming a sound processor to apply frequency shifting on a stimulation signal to generate a frequency shifted stimulation signal. The frequency shifting depends on one or more of a decibel level of a received sound signal, a hearing loss level associated with generating the stimulation signal, attenuation of an output based on the frequency shifted stimulation signal, or operating a hearing prosthesis in a single sided mode or a bilateral mode. The method includes receiving a sound signal, generating the stimulation signal from the sound signal, applying the frequency shifting to the stimulation signal to generate the frequency shifted stimulation signal, and generating, by an actuator of the hearing prosthesis, the output based on the frequency shifted stimulation signal, wherein the output is configured to be perceived as sound.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: October 17, 2017
    Assignee: Cochlear Limited
    Inventors: Martin E. G. Hillbratt, Mark C. Flynn
  • Patent number: 9579499
    Abstract: Methods, systems, and devices for determining a stimulus based on a masking model of human hearing are disclosed. An example method includes receiving a signal that includes information indicative of one or more spectral components of a sound. The example method also includes determining a masking curve that includes information indicative of one or more masking spectral components. The masking curve is determined according to a masking model of human hearing that accounts for at least an effect due to temporal masking. The example method further includes generating a stimulus based on a difference between the one or more spectral components and the one or more masking spectral components. The stimulation allows a recipient to perceive at least a portion of the sound.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: February 28, 2017
    Assignee: Cochlear Limited
    Inventors: Eugen Kludt, Andreas Büchner
  • Patent number: 9571948
    Abstract: Disclosed herein, among other things, are methods and apparatuses for hearing assistance low profile offset spouts. One aspect of the present subject matter relates to a hearing assistance spout consisting of a one-piece spout with a curved path to an off-axis (e.g., offset) port. The spout may be manufactured using metal injection molding to provide for a reflow solder attachment to the hearing assistance microphone. One aspect of the present subject matter relates to placing a full-sized spout off-axis while maintaining an open state that does not restrict the acoustic path, which may allow the offset spout to include a radial seal independent of the microphone body itself. One aspect of the present subject matter relates to an offset spout including a sealed acoustic barrier wall to protect the acoustic inlet of the microphone from debris or moisture.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: February 14, 2017
    Assignee: Starkey Laboratories, Inc.
    Inventor: Sidney A. Higgins
  • Patent number: 9525950
    Abstract: A method of processing a signal in a hearing aid (50), the method comprising the steps of determining a gain vector applied in a number of individual frequency bands, determining a gradient of a speech intelligibility measure as a function of the gain vector, modifying the value of the gradient and using the modified value of the gradient to optimize both speech intelligibility and listening comfort. The invention also provides a hearing aid (50).
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 20, 2016
    Assignee: Widex A/S
    Inventors: Kristian Timm Andersen, Mette Dahl Meincke
  • Patent number: 9374645
    Abstract: 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 comprises an adaptive feedback canceller configured to reduce feedback, the adaptive feedback canceller comprising a fixed filter corresponding to an invariant portion of the feedback path, and an adaptive filter corresponding to a variant portion of the feedback path, the fitting device comprising a processor configured to determine the invariant portion of the feedback path, wherein the processor is configured to provide the fixed filter with information relating to the invariant portion of the feedback path independently of the user using the hearing device.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: June 21, 2016
    Assignee: GN ReSound A/S
    Inventor: Guilin Ma
  • Patent number: 9338567
    Abstract: Methods, systems, and devices for processing an auditory signal to generate auditory prosthesis electrode stimuli in response to an incoming acoustic signal are disclosed. An example method includes dividing the incoming acoustic signal into one or more frequency envelopes. The example method also includes determining which auditory prosthesis electrodes to stimulate. The example method additionally includes determining a temporal reference point to which auditory prosthesis electrode stimuli are referenced. The example method further includes determining a delay for each of the auditory prosthesis electrode stimuli from the temporal reference point. The example method yet further includes determining amplitudes of the auditory prosthesis electrode stimuli. The example method also includes determining a wait period length before each successive temporal reference point.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: May 10, 2016
    Assignee: Cochlear Limited
    Inventors: Stefan Mauger, Mohit Shivdasani
  • Patent number: 9311933
    Abstract: A method of processing a voice segment includes checking whether a voice segment is a vowel segment. If the voice segment is not a vowel segment, then the process checks whether the voice segment is a high frequency consonant or a low frequency consonant. If the voice segment is a high frequency consonant, then the voice segment will be processed to lower its frequency.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: April 12, 2016
    Assignee: UNLIMITER MFA CO., LTD
    Inventor: Kuo-Ping Yang
  • Patent number: 9301066
    Abstract: Disclosed is an auditory comprehension and audibility device that assists users in hearing and comprehending auditory signals. The auditory comprehension and audibility device includes a magnetostrictive pad and a multi-turn coil that is disposed on the magnetostrictive pad. The multi-turn coil is electrically isolated from other devices, such as a speaker. An optional permanent magnet can also be placed on the magnetostrictive pad, which may help increase audibility of said auditory signals. The auditory comprehension and audibility device can be used in mobile phone covers, head phones, hearing aids and other devices that are used for hearing.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: March 29, 2016
    Assignee: Brain Basket, LLC
    Inventors: Joan Billger Burleigh, Joan Phillips Waldron
  • Patent number: 9258653
    Abstract: In accordance with an embodiment, a system for processing an incoming signal for audio application includes a parameter extraction module coupled for receiving an incoming signal having a first frequency that is configured to extract at least one parameter from the incoming signal. The system includes at least one oscillator and at least one processing engine processing that receives a clock signal from the at least one oscillator. In accordance with another embodiment, a method is provided that performs a first processing with the clock signal and generates an oscillator control signal for adjusting the frequency of the clock from the oscillator adaptively depending on parameters of the incoming signal extracted or analyzed in the first processing.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: February 9, 2016
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jakob Nielsen, Robert Brennan
  • Patent number: 9226084
    Abstract: A method of processing a signal in a hearing aid (50) comprising the steps of determining a gradient of a speech intelligibility measure using a closed form expression of the gradient and modifying the frequency dependent hearing aid gains in dependence on the calculated gradient. The invention also provides a hearing aid (50).
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: December 29, 2015
    Assignee: WIDEX A/S
    Inventors: Kristian Timm Andersen, Morten Holm Jensen
  • Patent number: 9167366
    Abstract: Disclosed herein, among other things, are apparatus and methods for a threshold-derived fitting rationale using frequency translation for hearing assistance devices. In various method embodiments, a first audiogram is received for a first hearing assistance device for a wearer, and a second audiogram is received for a second hearing assistance device for the wearer. The first audiogram and the second audiogram are compared to audiometric thresholds to determine if frequency translation should be enabled.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 20, 2015
    Assignee: Starkey Laboratories, Inc.
    Inventors: Susie Valentine, Kelly Fitz
  • Patent number: 9167361
    Abstract: An active medical device, including an input receiver configured to receive a frequency-varying input signal, and a functional component that reacts to the input signal and consumes power at a rate dependant on the frequency of portions of the input signal to which the functional component reacts, wherein the active medical device is configured to adjust one or more portions of the input signal corresponding to portions of the input signal where the functional component consumes power at a rate that is greater than that of other portions of the input signal.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: October 20, 2015
    Assignee: Cochlear Limited
    Inventors: Werner Meskens, Carl Van Himbeeck
  • Patent number: 9111549
    Abstract: A hearing aid comprising a frequency shifter (20) has means (22) for detecting a first frequency and a second frequency in an input signal. The frequency shifter (20) transposes a first frequency range of the input signal to a second frequency range of the input signal based on the presence of a fixed relationship between the first and the second detected frequency. The means (34, 35, 36) for detecting the fixed relationship between the first and the second frequency is used for controlling the frequency transposer (20). A speech detector (26) configured for detecting the presence of voiced and unvoiced speech is provided for suppressing the transposition of voiced-speech signals in order to preserve the speech formants. The purpose of transposing frequency bands in this way in a hearing aid is to render inaudible frequencies audible to a user of the hearing aid while maintaining the original envelope, harmonic coherence and speech intelligibility of the signal.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 18, 2015
    Assignee: Widex A/S
    Inventors: Jorge Cederberg, Henning Haugaard Andersen, Mette Dahl Meincke, Andreas Brinch Nielsen
  • Patent number: 9113271
    Abstract: The present invention is directed to a method and a hearing device for extending a usable frequency range of an analog input signal (i) being processed by a hearing device, the method comprising the steps of converting the analog input signal (i) to a first output signal (o1) and to an intermediate signal (om), the first output signal (o1) having a final sampling rate and the intermediate signal (om) having an intermediate sampling rate that is greater than the final sampling rate, applying a band-pass filter unit (31) to the intermediate signal (om) in order to obtain a filtered intermediate signal (omf), a lower cut-off frequency of the band-pass filter unit (31) being above half the final sampling rate, an upper cut-off frequency of the band-pass filter unit (31) being below half the intermediate sampling rate, and shifting a spectrum of the filtered intermediate signal (omf) to a frequency range being below the final sampling rate to obtain an intermediate output signal (om2).
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 18, 2015
    Assignee: PHONAK AG
    Inventor: Hans-Ueli Roeck
  • Patent number: 9083821
    Abstract: In general, in one aspect, a method performed by one or more processes executing on a computer systems includes receiving an audio signal comprising a range of audio frequencies including high frequencies and low frequencies, converting a first portion of the range of audio frequencies into haptic data, shifting a second portion of the range of audio frequencies to a different range of audio frequencies, and presenting at least one of the converted first portion and the shifted second portion to a human user. Other implementations of this aspect include corresponding systems, apparatus, and computer program products.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: July 14, 2015
    Assignee: Apple Inc.
    Inventor: Gregory F. Hughes
  • Patent number: 9084066
    Abstract: The present invention relates to a new method for effective estimation of signal processing parameters in a hearing aid. It is based on an interactive estimation process that incorporates—possibly inconsistent—user feedback. In particular, the present invention relates to optimization of hearing aid signal processing parameters based on Bayesian incremental preference elicitation.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: July 14, 2015
    Assignee: GN RESOUND A/S
    Inventors: Aalbert De Vries, Alexander Ypma
  • Patent number: 9084050
    Abstract: A system for remapping an audio range to a human perceivable range includes an audio transducer configured to output audio and a processing circuit. The processing circuit is configured to receive the audio from an audio input, analyze the audio to determine a first audio range, a second audio range, and a third audio range. The processing circuit is further configured to use frequency compression on the first audio range based on the second audio range and third audio range to create a first open frequency range, move the second audio range into the first open frequency range to create a second open frequency range, move the third audio range into the second open frequency range, and provide audio output including the compressed first audio range, the moved second audio range, and the moved third audio range.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: July 14, 2015
    Assignee: ELWHA LLC
    Inventors: W. Daniel Hillis, Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Lowell L. Wood, Jr., Victoria Y. H. Wood
  • Patent number: 9055377
    Abstract: A personal communication device provides hearing support, and includes an input receiving an audio signal, a programmable processor, and an output outputting the processed signal. The programmable processor performs a filtering operation on a digital version of the audio signal in a first signal path based on parameter settings and provides control logic that determines the parameter settings based on information on user preferences, on audiological information and on information on the listening situation to provide hearing loss compensation. The programmable processor has a second signal path in parallel with the first signal path that receives the digital version of the audio signal and parameter settings and determining the filter coefficients of the filtering operation based on the parameter settings and the digital version of the audio signal.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: June 9, 2015
    Assignee: JACOTI BVBA
    Inventors: Jacques Kinsbergen, Frans Erwin Offeciers, Andrzej Zarowski, Joachim Neumann, Andreas Beisler, Amaury Hazan, Nicolas Wack
  • Patent number: 9042583
    Abstract: A method of pre-processing a sound signal including music for an auditory prosthesis is provided. An input sound signal is received. The sound signal is processed using music pre-processing software to produce a music pre-processed signal. The music pre-processed signal is presented for further processing, so as to produce a corresponding stimuli signal.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: May 26, 2015
    Assignee: Cochlear Limited
    Inventor: Wim Buyens
  • Patent number: 9036844
    Abstract: The invention describes a hearing improvement device including components for training the brain to connect and stimulate the auditory and visual corteces and strengthen pathways between them, in order to overcome the shortcomings of the damaged auditory channel.
    Type: Grant
    Filed: November 10, 2013
    Date of Patent: May 19, 2015
    Inventors: Avraham Suhami, Shmuel Suhami
  • Patent number: 9031269
    Abstract: A method and device for frequency compression of audio signals to reduce the occurrence of artifacts. A component of the audio signal having a plurality of frequency channels is shifted from a first frequency channel into a second frequency channel. A dominant instantaneous frequency is determined in the first frequency channel. During shifting or mapping, first the entire first frequency channel, including the dominant instantaneous frequency, is shifted or mapped into the second frequency channel, wherein the dominant instantaneous frequency obtains an intermediate frequency position. A final frequency position for the dominant instantaneous frequency is determined using a predefined compression characteristic in the second frequency channel, starting from the frequency position of the dominant instantaneous frequency in the first frequency channel. Finally, the dominant instantaneous frequency is shifted or mapped from the intermediate frequency position to the final frequency position.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: May 12, 2015
    Assignee: Siemens Medical Instruments Pte. Ltd.
    Inventors: Robert Bäuml, Ulrich Kornagel, Thomas Pilgrim
  • Patent number: 9031271
    Abstract: The present invention relates to a listening device for a hearing impaired person. The present invention furthermore relates to a corresponding operating method of operating a listening device and to a corresponding computer program. In particular, the present invention relates to a listening device that comprises a signal processing unit that is controlled by a controller configured to implement a combined feed-forward and feed-back control in order to ensure that both an electric input signal and a processed electric output signal have at least almost identical modulation index values. Thereby, speech intelligibility is increased, in particular for a hearing impaired person being capable of perceiving sound pressure levels in a substantially decreased dynamic range.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: May 12, 2015
    Assignee: Oticon A/S
    Inventor: Niels Henrik Pontoppidan
  • Patent number: 9031270
    Abstract: A method of processes audio signals picked up from a sound field by a microphone system of a listening device adapted for being worn at a particular one of the left or right ear of a user, the sound field comprising sound signals from one or more sound sources, the sound signals impinging on the user from one or more directions relative to the user. Information about a user's Ear, Head, and Torso Geometry and the user's hearing ability in combination with knowledge of the spectral profile and location of current sound sources provide the means for deciding upon which frequency bands that, at a given time, contribute most to the BEE seen by the listener or the Hearing Instrument. For a given sound source, a number of donor frequency bands is determined at a given time, where an SNR-measure for the selected signal is above a predefined threshold.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: May 12, 2015
    Assignee: Oticon A/S
    Inventor: Niels Henrik Pontoppidan
  • Patent number: 9020063
    Abstract: An frequency shift keying (FSK) transceiver for use in a hearing aid is capable of automatic tuning of the transceiver frequency. The automatic tuning makes use of a phase difference detector and a tuning manager adapted to control the frequency of a resonant circuit of the FSK transceiver according to information received from the phase difference detector. The phase difference detector measures the phase difference across a component of the resonant circuit of the FSK transceiver. If the phase difference of a binary FSK symbol is equal to the phase difference of the opposite binary FSK symbol, the resonant circuit is tuned, otherwise the tuning manager performs a tuning procedure in order to minimize the difference in phase differences, and adjusts the frequency of the resonant circuit accordingly.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: April 28, 2015
    Assignee: Widex A/S
    Inventors: Soren Mollskov Larsen, Niels Ole Knudsen
  • Patent number: 9008339
    Abstract: Systems, apparatus, and techniques are described to perform operations including receiving speech that includes audio signals from a talker. A fundamental frequency, unique to the talker, is extracted from the audio signals. A tone in frequency with the extracted fundamental frequency of the received speech is modulated and the modulated tone is delivered to an audio transducing device.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: April 14, 2015
    Assignee: Arizona Board of Regents for and on behalf of Arizona State University
    Inventors: Sid P. Bacon, Christopher A. Brown, Frederic Apoux
  • Publication number: 20150092966
    Abstract: A method of processing sound in a hearing aid (100, 300, 400) comprises separating the input transducer signal into a periodic and aperiodic signal for further processing in the hearing aid (100, 300, 400). The invention also provides a hearing aid (100, 300, 400) adapted for carrying out such a method of sound processing.
    Type: Application
    Filed: December 11, 2014
    Publication date: April 2, 2015
    Applicant: WIDEX A/S
    Inventors: Kristian Timm ANDERSEN, Mike Lind RANK, Thomas Bo ELMEDYB
  • Patent number: 8989414
    Abstract: A communication system comprises a transmitter unit (10, 60) arranged to be carried by or located near a user, and an earpiece including a receiver unit (30, 70), the system operating with a carrier frequency of less than 100 kHz, preferably less than 30 kHz, most preferably in the range 14 to 20 kHz. The system employs vestigial sideband modulation by cutting off part of an upper sideband. The received signal is digitized and then sampled to an envelope-tracking sampled-data root-filter square detector (40) configured as a digital signal processor.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: March 24, 2015
    Assignee: Sensorcom Limited
    Inventors: Ian Edmund Munro, Kendall Castor-Perry, Tarik Zukic
  • Patent number: 8990081
    Abstract: A method of analyzing an audio signal is disclosed. A digital representation of an audio signal is received and a first output function is generated based on a response of a physiological model to the digital representation. At least one property of the first output function may be determined. One or more values are determined for use in analyzing the audio signal, based on the determined property of the first output function.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: March 24, 2015
    Assignee: Newsouth Innovations Pty Limited
    Inventors: Wenliang Lu, Dipanjan Sen
  • Publication number: 20150043764
    Abstract: A hearing aid device (2) is disclosed. The hearing aid device (2) is configured to be sealingly inserted into the bony region (20) of the ear canal (16). The hearing aid device (2) comprises a receiver (12) and at least one microphone (4, 6) and means for processing sound signals detected by the at least one microphone (4, 6). The hearing aid device (2) comprises means for carrying out electronic feedback suppression by applying a frequency shift (SF) and/or a time delay to the detected sound signals. A method for providing electronic feedback reduction in a hearing aid device (2) is also disclosed.
    Type: Application
    Filed: July 23, 2014
    Publication date: February 12, 2015
    Inventor: Karsten Bo RASMUSSEN
  • Patent number: 8953810
    Abstract: Aspect of the present invention are generally directed to synchronization between a first auditory prosthesis and a second auditory prosthesis of a bilateral auditory prosthesis system. In this system, a primary wireless communications channel, usable for synchronizing the first and second prostheses, may be disabled to, for example, conserve power. Then, upon detection of a trigger in sound received by one or more of the prostheses, the primary wireless communication channel is enabled and the prostheses synchronized using the primary wireless communication channel.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: February 10, 2015
    Assignee: Cochlear Limited
    Inventors: Werner Meskens, Tony M. Nygard
  • Patent number: 8942397
    Abstract: A method and apparatus for adding audible noise with time varying volume to audio devices are disclosed which makes the time varying volume envelope of the added audible noise proportional to the time varying volume envelope of sound for frequencies where an individual has a restricted range of perception. The method and apparatus are used to improve the audibility, speech intelligibility, and word recognition characteristics in audio devices.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: January 27, 2015
    Assignee: Dean Robert Gary Anderson
    Inventor: Dean Robert Gary Anderson
  • Patent number: 8929576
    Abstract: High-quality adjustment of a hearing apparatus, and in particular of a hearing aid, is accelerated. In the adjusting method, a percentile analysis is carried out in order to obtain at least one frequency response of the hearing apparatus. Any discrepancy between the frequency response and an intended gain characteristic is determined. The setting of the hearing apparatus is then changed, such that the discrepancy is reduced. In order to check the effect of the setting change, a current frequency response after variation of the setting is determined by providing a constant noise signal or a single sinusoidal sweep at the input of the hearing apparatus and level measurement at the output. This frequency response measurement can be carried out as a second step considerably more quickly than the very precise percentile analysis at the start of the process.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: January 6, 2015
    Assignee: Siemens Medical Instruments Pte. Ltd.
    Inventor: Josef Chalupper
  • Patent number: 8923538
    Abstract: Artifacts are reduced during a frequency compression of an audio signal in a hearing device, in particular in a hearing aid. An amplitude information of a source channel is obtained, for example a spectral envelope, from several frequency channels of the audio signal. An amplitude corresponding to the amplitude information is then applied on a signal in a target channel of the several frequency channels, on which the source channel is represented during frequency compression.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 30, 2014
    Assignee: Siemens Medical Instruments Pte. Ltd.
    Inventor: Ulrich Kornagel
  • Patent number: 8908892
    Abstract: A hearing aid device suitable for executing a frequency compression is optimized to achieve a better assignment between channels of a source frequency range and channels of a target frequency range. A frequency range that can be transmitted by the hearing aid device is split into a number of frequency bands, after which a number of adjacent frequency bands are combined into at least one group of frequency bands and then one frequency band is selected from each group of frequency bands. The selected frequency bands are moved respectively into a target frequency band permanently assigned to the respective group. This prevents that a number of frequency bands from the source frequency range are shifted to the same target frequency band.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: December 9, 2014
    Assignee: Siemens Medical Instruments Pte. Ltd.
    Inventors: Robert Bäuml, Ulrich Kornagel, Thomas Pilgrim
  • Patent number: 8897455
    Abstract: A disclosed method selects a plurality of fewer than all of the channels of a multichannel signal, based on information relating to the direction of arrival of at least one frequency component of the multichannel signal.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: November 25, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Erik Visser, Ernan Liu
  • Publication number: 20140321683
    Abstract: Feedback whistling and external tonal signals are distinguished during feedback suppression. For that purpose an adaptation increment of an adaptive filter of a hearing apparatus for feedback reduction is controlled. A sound signal is picked up by a microphone and a microphone signal is output, from which an earpiece signal for an earpiece is generated. An adaptive filter reduces a feedback signal in the microphone signal. To this end an autocorrelation value of sampled values of the microphone signal, between which a time difference exists, is obtained, and the adaptation increment of the adaptive filter is controlled based on the autocorrelation value. A frequency of an output signal obtained on the basis of the microphone signal is shifted while creating the earpiece signal and the time difference for obtaining the autocorrelation value is controlled as a function of the shifting of the frequency of the microphone signal.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 30, 2014
    Applicant: SIEMENS MEDICAL INSTRUMENTS PTE. LTD.
    Inventors: TOBIAS DANIEL ROSENKRANZ, TOBIAS WURZBACHER
  • Patent number: 8867764
    Abstract: A hearing aid can be tuned while worn by a user according to a heuristic method, including select an adjustable parameter and an stimulus having audio energy characteristics related to the adjustable parameter. The stimulus is played via a calibrated audio output device and amplified by the hearing aid. After selecting a user perception query associated with the adjustable parameter, feedback is obtained from the user indicating that the stimulus was not perceived neutrally. A perceptual adjustment curve and a threshold curve are determined according to the user feedback, and an estimated perception curve that estimates the user's perception of the stimulus is determined. When at least a portion of the estimated perception curve exceeds a threshold curve, the hearing aid is programmed according to at least one adjustment value determined according to the user feedback value.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: October 21, 2014
    Assignee: Bowie-Wiggins LLC
    Inventors: Dan Wiggins, Don Bowie
  • Patent number: 8861759
    Abstract: A method is provided for adapting a feedback suppression device of a hearing device to a given situation in order to improve the quality of feedback suppression in hearing devices and in hearing aids in particular. In the method an adaptation procedure of the feedback suppression device is periodically activated and adaptation of the feedback suppression device is performed regularly even if a feedback detector does not detect a feedback situation. A feedback suppression device for a hearing device is also provided.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: October 14, 2014
    Assignee: Siemens Medical Instruments Pte. Ltd.
    Inventors: Sebastian Pape, Tobias Wurzbacher
  • Patent number: 8855342
    Abstract: With a hearing aid device suitable for executing a frequency compression, the aim is for different input signals entering the hearing aid device to be easily distinguishable even after frequency compression. To this end it is proposed that form factors should be determined from source frequency bands in which the signal components of the input signal present therein are not included in the output signal, these being included in the amplification of selected frequency bands, the signal components of which are included in the output signal.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: October 7, 2014
    Assignee: Siemens Medical Instruments Pte. Ltd.
    Inventor: Ulrich Kornagel
  • Patent number: 8848953
    Abstract: A method for the operation of a hearing device with at least one receiver includes carrying out a fixed second frequency shift of an electrical receiver signal supplying the receiver or of a predefinable frequency range of the receiver signal and a variable first frequency shift of the receiver signal or of a predefinable frequency range of the receiver signal. The first frequency shift is changed depending on the occurring feedback. A frequency shift which effectively prevents feedback is advantageously carried out, while artifacts of the frequency shift are minimized.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: September 30, 2014
    Assignee: Siemens Medical Instruments Pte. Ltd.
    Inventors: Sebastian Pape, Tobias Wurzbacher, Stefan Petrausch, Ulrich Kornagel
  • Publication number: 20140270289
    Abstract: A method for enhancing speech output in real time is used in a hearing aid device. The input speech is divided into multiple audio segments first. Then each audio segment is analyzed for its attribute: high frequency, low frequency, or soundless. Low frequency segments are outputted without undergoing frequency processing. High frequency segments are outputted after undergoing frequency processing. All or some of the soundless segments are deleted without being outputted. The deletion of soundless segments can reduce the delay caused by the frequency processing of the high frequency segments.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: Kuo-Ping Yang