Patents by Inventor Tobias Wurzbacher

Tobias Wurzbacher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10674283
    Abstract: A method distorts the frequency of an input signal that is present as an audio signal. Here, the input signal is divided into a low-frequency signal component and a high-frequency signal component. These two signal components adjoin one another at a cut-off frequency. The high-frequency signal component is frequency-distorted and overlaid with the low-frequency signal component to form an output signal. An associated gain factor is modified, at least for an edge region, containing the cut-off frequency, of the high-frequency signal component and/or of the low-frequency signal component, such that a level difference between a signal level of the low-frequency signal component and a signal level of the frequency-distorted high-frequency signal component is increased.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: June 2, 2020
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Daniel Rosenkranz, Tobias Wurzbacher
  • Patent number: 10652668
    Abstract: A method performs frequency distortion of an audio signal. The audio signal is divided at at least one division frequency into a low-frequency band and a high-frequency band. A frequency-distorted signal is generated through respectively different distortions of frequencies for the high-frequency band and for the low-frequency band. The division frequency is selected such that it is located between two neighboring tones of a given tonal system.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: May 12, 2020
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Daniel Rosenkranz, Tobias Wurzbacher, Christos Oreinos
  • Patent number: 10652670
    Abstract: A method operates a hearing aid which has at least one input transducer and at least one output transducer. An input signal is generated by the at least one input transducer from a sound signal in the environment. From the input signal, a classification of a hearing situation of the environment is determined and/or at least one of four parameters including tonality, loudness, stationarity and reverberation time is determined for the sound signal of the environment. A first intermediate signal is generated in dependence on the input signal by signal processing. Wherein by the classification of the hearing situation and by at least one of the four parameters of tonality, loudness, stationarity and reverberation time, at least one parameter of a frequency distortion is predetermined. The frequency distortion predetermined in this way is applied to the first intermediate signal.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 12, 2020
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Daniel Rosenkranz, Sebastian Best, Stefan Petrausch, Tobias Wurzbacher, Christoph Lueken, Nicola Cebulla, Christos Oreinos
  • Publication number: 20190387327
    Abstract: A method for operating a hearing apparatus system with at least one hearing apparatus uses a first sensor of the hearing apparatus to capture a first measured variable characteristic of an actual wearing situation. If the first measured variable and/or a variation over time derived therefrom satisfies at least one prescribed first criterion, it is inferred that the hearing apparatus has had a tumble. If the tumble is detected to have taken place, at least one further measured variable and/or a variation over time derived therefrom is captured, and the at least one further measured variable is used to ascertain whether the hearing apparatus is arranged on the head of a hearing device wearer after the tumble.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 19, 2019
    Inventors: CHRISTOPH KUKLA, TOBIAS WURZBACHER, SANDRO KECANOVIC
  • Publication number: 20190342676
    Abstract: A hearing device has an acceleration sensor that is positioned on the head of a hearing device wearer in the intended worn state, is configured for measurement in two mutually orthogonal measurement axes and is operated by virtue of at least one main feature related to an acceleration directed tangentially in relation to the head being derived from an acceleration signal of the acceleration sensor. The at least one main feature is used to ascertain a presence of a yaw movement of the head by taking into consideration at least one prescribed criterion, derivable from the acceleration signal itself, beyond the presence of an acceleration value of the tangentially directed acceleration that is indicative of a movement.
    Type: Application
    Filed: May 6, 2019
    Publication date: November 7, 2019
    Inventors: TOBIAS WURZBACHER, THOMAS KUEBERT, DIRK MAULER
  • Patent number: 10462581
    Abstract: A method for detecting a defect in a hearing instrument that has at least one first input transducer and at least one output transducer. A first transfer function of a first acoustic system, which includes the output transducer and the first input transducer, is determined, and at least a first reference function for the first transfer function is determined. The first transfer function is compared with the first reference function and a defect in the hearing instrument is detected based on the comparison. A hearing instrument with an input transducer and an output transducer is set up to carry out the method.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: October 29, 2019
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Wurzbacher, Tobias Daniel Rosenkranz
  • Patent number: 10397712
    Abstract: A method for the frequency distortion of an audio signal includes splitting the audio signal into a plurality of specified frequency bands, in which a band limit frequency is defined in each case by two respective immediately adjacent frequency bands. A first frequency band and a second frequency band lying immediately above the first frequency band are determined on the basis of the audio signal. A distortion of the frequencies differing from the distortion applied to signal components in the second frequency band is applied to signal components in the first frequency band, and a frequency-distorted signal is generated as a result. A method for suppressing an acoustic feedback in an acoustic system and a hearing aid are also provided.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 27, 2019
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Daniel Rosenkranz, Tobias Wurzbacher
  • Patent number: 10334371
    Abstract: A method and an apparatus reduce feedback in a hearing aid device. The method includes the step of acquiring a first feedback transfer function at a first point in time on a feedback path from a signal processing device via an electro-acoustic transducer, an acoustic signal path from the electro-acoustic transducer to an acousto-electric transducer and via the acousto-electric transducer back to the signal processing device. In a further step, a weighted mean value function is determined in a manner dependent on amplitude absolute values of the first feedback transfer function. A second feedback transfer function is estimated by an adaptive filter, wherein coefficients of the adaptive filter are determined in a manner dependent on the weighted mean value function. The adaptive filter is applied to a signal which is derived from an acoustic input signal of the acousto-electric transducer.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 25, 2019
    Assignee: Sivantos Pte. Ltd.
    Inventors: Henning Puder, Tobias Daniel Rosenkranz, Tobias Wurzbacher
  • Patent number: 10313803
    Abstract: A method suppresses feedback in a hearing instrument. A microphone generates an input signal and a loudspeaker generates an acoustic signal which is partially fed back to the microphone via an acoustic feedback path. An intermediate signal is generated along a main signal path depending on the input signal, and an output signal is formed on the basis of the intermediate signal. A voice activity of a user is monitored, a transfer function of an electro-acoustic closed signal loop formed by the main signal path and the feedback path is estimated, that, depending on the transfer function of the closed signal loop and the voice activity of the user, the intermediate signal is decorrelated to form the output signal. A compensation signal is generated from the output signal and is fed to the input signal for feedback compensation, and the output signal is fed to the loudspeaker for reproduction.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 4, 2019
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Daniel Rosenkranz, Tobias Wurzbacher
  • Patent number: 10277991
    Abstract: A method operates a binaural hearing aid system with first and second hearing aids. A first audio signal of the first hearing aid is divided into a first high-frequency component and a first low-frequency component. A second audio signal of the second hearing aid is divided into a second high-frequency component and a second low-frequency component. A first provisional division frequency is specified for the division of the first audio signal into the first high-frequency component and the first low-frequency component. A second provisional division frequency is specified for the division of the second audio signal into the second high-frequency component and the second low-frequency component. A division frequency is defined on the basis of the first provisional division frequency and the second provisional division frequency. The first and second audio signals are divided at the division frequency into respective high-frequency components and low-frequency components.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: April 30, 2019
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Daniel Rosenkranz, Tobias Wurzbacher, Christoph Lueken, Christos Oreinos
  • Publication number: 20190075403
    Abstract: A method for detecting a defect in a hearing instrument that has at least one first input transducer and at least one output transducer. A first transfer function of a first acoustic system, which includes the output transducer and the first input transducer, is determined, and at least a first reference function for the first transfer function is determined. The first transfer function is compared with the first reference function and a defect in the hearing instrument is detected based on the comparison. A hearing instrument with an input transducer and an output transducer is set up to carry out the method.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 7, 2019
    Inventors: TOBIAS WURZBACHER, TOBIAS DANIEL ROSENKRANZ
  • Publication number: 20180255405
    Abstract: A method distorts the frequency of an input signal that is present as an audio signal. Here, the input signal is divided into a low-frequency signal component and a high-frequency signal component. These two signal components adjoin one another at a cut-off frequency. The high-frequency signal component is frequency-distorted and overlaid with the low-frequency signal component to form an output signal. An associated gain factor is modified, at least for an edge region, containing the cut-off frequency, of the high-frequency signal component and/or of the low-frequency signal component, such that a level difference between a signal level of the low-frequency signal component and a signal level of the frequency-distorted high-frequency signal component is increased.
    Type: Application
    Filed: February 9, 2018
    Publication date: September 6, 2018
    Inventors: TOBIAS DANIEL ROSENKRANZ, TOBIAS WURZBACHER
  • Publication number: 20180255407
    Abstract: A method for the frequency distortion of an audio signal includes splitting the audio signal into a plurality of specified frequency bands, in which a band limit frequency is defined in each case by two respective immediately adjacent frequency bands. A first frequency band and a second frequency band lying immediately above the first frequency band are determined on the basis of the audio signal. A distortion of the frequencies differing from the distortion applied to signal components in the second frequency band is applied to signal components in the first frequency band, and a frequency-distorted signal is generated as a result. A method for suppressing an acoustic feedback in an acoustic system and a hearing aid are also provided.
    Type: Application
    Filed: February 26, 2018
    Publication date: September 6, 2018
    Inventors: TOBIAS DANIEL ROSENKRANZ, TOBIAS WURZBACHER
  • Publication number: 20180213336
    Abstract: A method operates a binaural hearing aid system with first and second hearing aids. A first audio signal of the first hearing aid is divided into a first high-frequency component and a first low-frequency component. A second audio signal of the second hearing aid is divided into a second high-frequency component and a second low-frequency component. A first provisional division frequency is specified for the division of the first audio signal into the first high-frequency component and the first low-frequency component. A second provisional division frequency is specified for the division of the second audio signal into the second high-frequency component and the second low-frequency component. A division frequency is defined on the basis of the first provisional division frequency and the second provisional division frequency. The first and second audio signals are divided at the division frequency into respective high-frequency components and low-frequency components.
    Type: Application
    Filed: January 18, 2018
    Publication date: July 26, 2018
    Inventors: TOBIAS DANIEL ROSENKRANZ, TOBIAS WURZBACHER, CHRISTOPH LUEKEN, CHRISTOS OREINOS
  • Publication number: 20180199141
    Abstract: A method performs frequency distortion of an audio signal. The audio signal is divided at at least one division frequency into a low-frequency band and a high-frequency band. A frequency-distorted signal is generated through respectively different distortions of frequencies for the high-frequency band and for the low-frequency band. The division frequency is selected such that it is located between two neighboring tones of a given tonal system.
    Type: Application
    Filed: January 11, 2018
    Publication date: July 12, 2018
    Inventors: TOBIAS DANIEL ROSENKRANZ, TOBIAS WURZBACHER, CHRISTOS OREINOS
  • Publication number: 20180184217
    Abstract: A method operates a hearing aid which has at least one input transducer and at least one output transducer. An input signal is generated by the at least one input transducer from a sound signal in the environment. From the input signal, a classification of a hearing situation of the environment is determined and/or at least one of four parameters including tonality, loudness, stationarity and reverberation time is determined for the sound signal of the environment. A first intermediate signal is generated in dependence on the input signal by signal processing. Wherein by the classification of the hearing situation and by at least one of the four parameters of tonality, loudness, stationarity and reverberation time, at least one parameter of a frequency distortion is predetermined. The frequency distortion predetermined in this way is applied to the first intermediate signal.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 28, 2018
    Inventors: TOBIAS DANIEL ROSENKRANZ, SEBASTIAN BEST, STEFAN PETRAUSCH, TOBIAS WURZBACHER, CHRISTOPH LUEKEN, NICOLA CEBULLA, CHRISTOS OREINOS
  • Patent number: 9980056
    Abstract: A method for suppressing acoustic feedback in a hearing aid device and a corresponding device and a system. A frequency range to be transmitted by the hearing aid device is divided into two frequency ranges that are separated by a split-band frequency. A transfer function of a feedback path is estimated in a frequency range and assessed for its behavior at the split-band frequency. Depending on the result of the assessment, the split-band frequency is lowered or raised and in the upper frequency range a phase and/or frequency change is applied for suppressing feedback.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: May 22, 2018
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Wurzbacher, Tobias Daniel Rosenkranz, Stefan Petrausch
  • Publication number: 20180041846
    Abstract: A method and an apparatus reduce feedback in a hearing aid device. The method includes the step of acquiring a first feedback transfer function at a first point in time on a feedback path from a signal processing device via an electro-acoustic transducer, an acoustic signal path from the electro-acoustic transducer to an acousto-electric transducer and via the acousto-electric transducer back to the signal processing device. In a further step, a weighted mean value function is determined in a manner dependent on amplitude absolute values of the first feedback transfer function. A second feedback transfer function is estimated by an adaptive filter, wherein coefficients of the adaptive filter are determined in a manner dependent on the weighted mean value function. The adaptive filter is applied to a signal which is derived from an acoustic input signal of the acousto-electric transducer.
    Type: Application
    Filed: October 20, 2017
    Publication date: February 8, 2018
    Inventors: HENNING PUDER, TOBIAS DANIEL ROSENKRANZ, TOBIAS WURZBACHER
  • Patent number: 9872114
    Abstract: A method and an apparatus reduce feedback in a hearing aid device. The method includes the step of acquiring a first feedback transfer function at a first point in time on a feedback path from a signal processing device via an electro-acoustic transducer, an acoustic signal path from the electro-acoustic transducer to an acousto-electric transducer and via the acousto-electric transducer back to the signal processing device. In a further step, a weighted mean value function is determined in a manner dependent on amplitude absolute values of the first feedback transfer function. A second feedback transfer function is estimated by an adaptive filter, wherein coefficients of the adaptive filter are determined in a manner dependent on the weighted mean value function. The adaptive filter is applied to a signal which is derived from an acoustic input signal of the acousto-electric transducer.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: January 16, 2018
    Assignee: Sivantos Pte. Ltd.
    Inventors: Henning Puder, Tobias Daniel Rosenkranz, Tobias Wurzbacher
  • Patent number: 9832574
    Abstract: A method and apparatus reduce feedback in a hearing aid. The method involves a first transfer function, which includes a feedback path, being estimated for a first section of a signal response. A power of a feedback signal from a second transfer function of the feedback path is estimated for a second section of the signal response, and a parameter of the signal processing device and/or of the feedback suppression unit is adjusted on the basis of the estimated power.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: November 28, 2017
    Assignee: Sivantos Pte. Ltd.
    Inventors: Tobias Daniel Rosenkranz, Tobias Wurzbacher