Patents by Inventor Dunxu Hu

Dunxu Hu 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).

  • Publication number: 20210105415
    Abstract: Systems and methods for determining a location of a wearable electronic device are disclosed. In some aspects, the device includes a position acquisition device and an accelerometer. A hardware processor included in the device may be configured to generally maintain the position acquisition device in a low power state to save power. When a video or image is captured, it may tag the video or image with first location information. Given the inoperative position acquisition device, a current location may not be known. In some aspects, in response to a need for location information, measurements from an accelerometer may be stored. The position acquisition device may also be transitioned to an operative state, and after some time delay, a second location determined. In some aspects, the location of the capture may then be obtained based on the acceleration measurements and the second location.
    Type: Application
    Filed: December 17, 2020
    Publication date: April 8, 2021
    Inventors: Zhibin Zhang, Russell Douglas Patton, Peter Brook, Dunxu Hu
  • Patent number: 10965931
    Abstract: Camera compensation methods and systems that compensate for misalignment of sensors/camera in stereoscopic camera systems. The compensation includes identifying a pitch angle offset between a first camera and a second camera, determining misalignment of the first and second cameras from the identified pitch angle offset, determining a relative compensation delay responsive to the determined misalignment, introducing the relative compensation delay to image streams produced by the cameras, and producing a stereoscopic image on a display from the first and second image streams with the introduced delay.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: March 30, 2021
    Assignee: Snap Inc.
    Inventors: Dmitry Ryuma, David Ben Ezra, Dunxu Hu, Patrick Timothy McSweeney Simons
  • Patent number: 10893198
    Abstract: Systems and methods for determining a location of a wearable electronic device are disclosed. In some aspects, the device includes a position acquisition device and an accelerometer. A hardware processor included in the device may be configured to generally maintain the position acquisition device in a low power state to save power. When a video or image is captured, it may tag the video or image with first location information. Given the inoperative position acquisition device, a current location may not be known. In some aspects, in response to a need for location information, measurements from an accelerometer may be stored. The position acquisition device may also be transitioned to an operative state, and after some time delay, a second location determined. In some aspects, the location of the capture may then be obtained based on the acceleration measurements and the second location.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 12, 2021
    Assignee: Snap Inc.
    Inventors: Zhibin Zhang, Russell Douglas Patton, Peter Brook, Dunxu Hu
  • Publication number: 20200314577
    Abstract: Head-wearable apparatus to generate binaural audio content includes a first stem coupled to a first microphone housing that encases first front microphone and first rear microphone that generates acoustic signals, respectively. First microphone housing includes a first front port that faces downward and a first rear port that faces backwards. Apparatus includes second stem coupled to second microphone housing that encases second front microphone and second rear microphone that generate acoustic signals, respectively. Second microphone housing includes second front port that faces downward and second rear port that faces backwards. Apparatus includes binaural audio processor that includes beamformer and storage device. Beamformer generate first beamformer signal based on acoustic signals from first front microphone and first rear microphone, and second beamformer based on acoustic signals from second front microphone and second rear microphone.
    Type: Application
    Filed: January 2, 2020
    Publication date: October 1, 2020
    Inventors: Michael Asfaw, Dunxu Hu, Patrick Timothy McSweene Simons, Victoria Lulu Wang Limketkai