Patents by Inventor Rahim Saeidi

Rahim Saeidi 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).

  • Proximity sensing
    Patent number: 11828885
    Abstract: Embodiments of the present disclosure provide apparatus, methods and computer programs for ultrasonic proximity-detection.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: November 28, 2023
    Assignee: Cirrus Logic Inc.
    Inventors: Pablo Peso Parada, Rahim Saeidi
  • Techniques for howling detection
    Patent number: 11638094
    Abstract: A howling detector is described that is configured to receive an input signal and to determine measure of the linearity of a logarithmic representation of the energy of the input signal. In some examples, this triggers gain adjustment (e.g. of a noise control unit) and, in some further examples, the amount of the gain adjustment may be based on an estimation of the maximum stable gain of a noise control unit.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: April 25, 2023
    Assignee: Cirrus Logic, Inc.
    Inventors: Pablo Peso Parada, Rahim Saeidi, John L. Melanson
  • Sound event detection
    Patent number: 11107493
    Abstract: An audio processing system is described for an audio event detection (AED) system. The system includes a feature extraction block configured to derive at least one feature which represents a spectral feature of the input signal.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: August 31, 2021
    Assignee: Cirrus Logic, Inc.
    Inventors: Sara Mainiero, Toby Stokes, Pablo Peso Parada, Rahim Saeidi
  • TECHNIQUES FOR HOWLING DETECTION
    Publication number: 20210219055
    Abstract: The application describes techniques for howling detection. A howling detector is described that is configured to receive an input signal and to determine measure of the linearity of a logarithmic representation of the energy of the input signal. In some examples, this triggers gain adjustment (e.g. of a noise control unit) and, in some further examples, the amount of the gain adjustment may be based on an estimation of the maximum stable gain of a noise control unit.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 15, 2021
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Pablo PESO PARADA, Rahim SAEIDI, John L. MELANSON
  • Speaker enrollment
    Patent number: 10839810
    Abstract: A method of speaker modelling for a speaker recognition system, comprises: receiving a signal comprising a speaker's speech; and, for a plurality of frames of the signal: obtaining a spectrum of the speaker's speech; generating at least one modified spectrum, by applying effects related to a respective vocal effort; and extracting features from the spectrum of the speaker's speech and the at least one modified spectrum. The method further comprises forming at least one speech model based on the extracted features.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: November 17, 2020
    Assignee: Cirrus Logic, Inc.
    Inventor: Rahim Saeidi
  • Techniques for howling detection
    Patent number: 10681458
    Abstract: A processing module for a noise control circuit may include a howling detector configured to receive an input signal and to determine a linearity metric based on the input signal, the linearity metric comprising a measure of the linearity of a logarithmic representation of the energy of the input signal. The processing module may also include a gain adjuster configured to adjust the gain of a noise control unit.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: June 9, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Pablo Peso Parada, Rahim Saeidi, John L. Melanson
  • SOUND EVENT DETECTION
    Publication number: 20200105293
    Abstract: An audio processing system is described for an audio event detection (AED) system. The system includes a feature extraction block configured to derive at least one feature which represents a spectral feature of the input signal.
    Type: Application
    Filed: September 10, 2019
    Publication date: April 2, 2020
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Sara MAINIERO, Toby STOKES, Pablo PESO PARADA, Rahim SAEIDI
  • TECHNIQUES FOR HOWLING DETECTION
    Publication number: 20190379972
    Abstract: The application describes techniques for howling detection. A processing module for a noise control circuit is described. The processing module comprises a howling detector configured to receive an input signal and to determine a log-linearity metric based on the input signal. Gain adjustment of the noise control unit following the detection of howling is also described, wherein the amount of gain adjustment may be based on an estimation of the maximum stable gain of the noise control unit.
    Type: Application
    Filed: June 11, 2018
    Publication date: December 12, 2019
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Pablo PESO PARADA, Rahim SAEIDI, John L. MELANSON
  • PROXIMITY SENSING
    Publication number: 20190187261
    Abstract: Embodiments of the present disclosure provide apparatus, methods and computer programs for ultrasonic proximity-detection.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 20, 2019
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Pablo Peso Parada, Rahim Saeidi
  • SPEAKER ENROLLMENT
    Publication number: 20190156836
    Abstract: A method of speaker modelling for a speaker recognition system, comprises: receiving a signal comprising a speaker's speech; and, for a plurality of frames of the signal: obtaining a spectrum of the speaker's speech; generating at least one modified spectrum, by applying effects related to a respective vocal effort; and extracting features from the spectrum of the speaker's speech and the at least one modified spectrum. The method further comprises forming at least one speech model based on the extracted features.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 23, 2019
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventor: Rahim SAEIDI
  • Noise suppression
    Patent number: 10283106
    Abstract: The present application describes techniques for noise control which utilize a feedback control unit comprising a filter, derived from one or more predetermined filter candidates, for reducing or cancelling a feedback component of a noise control signal.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 7, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Rahim Saeidi, Pablo Peso Parada