Patents by Inventor Shuwan Xue

Shuwan Xue 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).

  • Piezoelectric MEMS device with an adaptive threshold for detection of an acoustic stimulus
    Patent number: 11930334
    Abstract: A device that includes an adaptive acoustic detection circuit and an acoustic sensor device such as a microphone is described. The device includes in addition to the sensor a circuit configured to detect when an input stimulus to the sensor satisfies an adaptive threshold, and further configured to produce a signal upon detection that causes adjustment of performance of the device, wherein the adaptive threshold is a threshold value that varies over time in accordance with detected changes to sound of an environment in which the device is located.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: March 12, 2024
    Assignee: QUALCOMM Technologies, Inc.
    Inventors: Robert J. Littrell, Michael Carfore, Shuwan Xue
  • PIEZOELECTRIC MEMS DEVICE WITH AN ADAPTIVE THRESHOLD FOR DETECTION OF AN ACOUSTIC STIMULUS
    Publication number: 20220394384
    Abstract: A device that includes an adaptive acoustic detection circuit and an acoustic sensor device such as a microphone is described. The device includes in addition to the sensor a circuit configured to detect when an input stimulus to the sensor satisfies an adaptive threshold, and further configured to produce a signal upon detection that causes adjustment of performance of the device, wherein the adaptive threshold is a threshold value that varies over time in accordance with detected changes to sound of an environment in which the device is located.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Robert J. Littrell, Michael Carfore, Shuwan Xue
  • Piezoelectric MEMS device with an adaptive threshold for detection of an acoustic stimulus
    Patent number: 11418882
    Abstract: A device that includes an adaptive acoustic detection circuit and an acoustic sensor device such as a microphone is described. The device includes in addition to the sensor a circuit configured to detect when an input stimulus to the sensor satisfies an adaptive threshold, and further configured to produce a signal upon detection that causes adjustment of performance of the device, wherein the adaptive threshold is a threshold value that varies over time in accordance with detected changes to sound of an environment in which the device is located.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: August 16, 2022
    Assignee: Vesper Technologies Inc.
    Inventors: Robert J. Littrell, Michael Carfore, Shuwan Xue
  • Piezoelectric MEMS Device with an Adaptive Threshold for Detection of an Acoustic Stimulus
    Publication number: 20200296513
    Abstract: A device that includes an adaptive acoustic detection circuit and an acoustic sensor device such as a microphone is described. The device includes in addition to the sensor a circuit configured to detect when an input stimulus to the sensor satisfies an adaptive threshold, and further configured to produce a signal upon detection that causes adjustment of performance of the device, wherein the adaptive threshold is a threshold value that varies over time in accordance with detected changes to sound of an environment in which the device is located.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 17, 2020
    Inventors: Robert J. Littrell, Michael Carfore, Shuwan Xue