Patents by Inventor Xudong Ni

Xudong Ni 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).

  • METHOD AND APPARATUS FOR MEASURING ROTATIONAL SPEED OF SATELLITE DISK ON MOCVD PLANETARY SUSCEPTOR
    Publication number: 20240210436
    Abstract: A method for measuring a rotational speed of a satellite disk on a MOCVD planetary susceptor includes emitting a beam of laser light on the MOCVD equipment, the laser light irradiating on the planetary susceptor of the MOCVD equipment. As the planetary susceptor is revolving, the laser light is irradiating on a satellite disk and wafers on the satellite disk, splitting and converting the reflected laser light into an electrical signal and sampling the electrical signal at a fixed frequency within a time period of two trigger pulse signals to obtain an angle revolved by the planetary susceptor for each sampling. The rotational speed of the satellite disk is obtained by calculating variation between ?0 to ?1, wherein the rotation angle of ?0 is obtained when the edge of the wafer enters a viewport, and ?1 is calculated when the edge of the same wafer leaves the viewport.
    Type: Application
    Filed: November 19, 2021
    Publication date: June 27, 2024
    Applicant: NANCHANG ANGKUN CO., LTD.
    Inventors: Wenyong HUANG, Tiezhong MA, Hua YAN, Xudong NI
  • ADAPTIVE AMBIENT SOUND SUPPRESSION AND SPEECH TRACKING
    Publication number: 20120245933
    Abstract: A device for suppressing ambient sounds from speech received by a microphone array is provided. One embodiment of the device comprises a microphone array, a processor, an analog-to-digital converter, and memory comprising instructions stored therein that are executable by the processor.
    Type: Application
    Filed: June 8, 2012
    Publication date: September 27, 2012
    Applicant: MICROSOFT CORPORATION
    Inventors: Jason Flaks, Ivan Tashev, Duncan McKay, Xudong Ni, Robert Heitkamp, Wei Guo, John Tardif, Leo Shing, Michael Baseflug
  • Adaptive ambient sound suppression and speech tracking
    Patent number: 8219394
    Abstract: A device for suppressing ambient sounds from speech received by a microphone array is provided. One embodiment of the device comprises a microphone array, a processor, an analog-to-digital converter, and memory comprising instructions stored therein that are executable by the processor.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: July 10, 2012
    Assignee: Microsoft Corporation
    Inventors: Jason Flaks, Ivan Tashev, Duncan McKay, Xudong Ni, Robert Heitkamp, Wei Guo, John Tardif, Leo Shing, Michael Baseflug
  • ADAPTIVE AMBIENT SOUND SUPPRESSION AND SPEECH TRACKING
    Publication number: 20110178798
    Abstract: A device for suppressing ambient sounds from speech received by a microphone array is provided. One embodiment of the device comprises a microphone array, a processor, an analog-to-digital converter, and memory comprising instructions stored therein that are executable by the processor.
    Type: Application
    Filed: January 20, 2010
    Publication date: July 21, 2011
    Applicant: MICROSOFT CORPORATION
    Inventors: Jason Flaks, Ivan Tashev, Duncan McKay, Xudong Ni, Robert Heitkamp, Wei Guo, John Tardif, Leo Shing, Michael Baseflug