Patents by Inventor Hongxiang YU

Hongxiang YU 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).

  • Phase alignment system and method of oscillating mirror
    Patent number: 12235180
    Abstract: The present invention discloses a phase alignment system and method of oscillating mirror. The present invention utilizes the reciprocating scanning symmetry feature of the simple harmonic oscillation motion of the oscillating mirror to construct scanning pattern data with complementary pixel brightness and darkness. When the phase difference parameter applied by the scan controller is consistent with the actual phase of simple harmonic oscillation of the oscillating mirror, the scanning pattern data with complementary pixel brightness and darkness and the reciprocating motion of the oscillating mirror are accurately matched, and a perfect stitched continuous scanning line with uniform brightness is obtained on the projection plane, thereby achieving the effect of being clearly distinguishable, easy to detect, and convenient for alignment operation.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: February 25, 2025
    Assignees: BEIJING QIANHENGDE TECHNOLOGY CO., LTD, BEIJING LIQIAN HENGXIN TECHNOLOGY CO., LTD
    Inventors: Hongxiang Yu, Kangheng Wang, Yijie Yang
  • PHASE ALIGNMENT SYSTEM AND METHOD OF OSCILLATING MIRROR
    Publication number: 20220196517
    Abstract: The present invention discloses a phase alignment system and method of oscillating mirror. The present invention utilizes the reciprocating scanning symmetry feature of the simple harmonic oscillation motion of the oscillating mirror to construct scanning pattern data with complementary pixel brightness and darkness. When the phase difference parameter applied by the scan controller is consistent with the actual phase of simple harmonic oscillation of the oscillating mirror, the scanning pattern data with complementary pixel brightness and darkness and the reciprocating motion of the oscillating mirror are accurately matched, and a perfect stitched continuous scanning line with uniform brightness is obtained on the projection plane, thereby achieving the effect of being clearly distinguishable, easy to detect, and convenient for alignment operation.
    Type: Application
    Filed: March 26, 2020
    Publication date: June 23, 2022
    Applicant: PERA CORPORATION LIMITED
    Inventors: Hongxiang YU, Kangheng WANG, Yijie YANG