Patents by Inventor Zhiyou Xu

Zhiyou Xu 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).

  • Patent number: 11757456
    Abstract: Disclosed is a phase-locked loop circuit, including: a phase-locked loop, a locking detection circuit, an input end for inputting a reference clock signal, a first output end for outputting an oscillator clock signal, and a second output end for outputting a locking signal, wherein the phase-locked loop is configured to output the oscillator clock signal according to the reference clock signal and control the reference clock signal and the oscillator clock signal to be synchronous; and the locking detection circuit is configured to output the locking signal to the second output end when the oscillator clock signal and the reference clock signal are synchronous.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: September 12, 2023
    Assignee: Weifang Goertek Microelectronics Co., Ltd.
    Inventors: Mingyong Shi, Zhiyou Xu, Lide Wu
  • Publication number: 20220231693
    Abstract: Disclosed is a phase-locked loop circuit, including: a phase-locked loop, a locking detection circuit, an input end for inputting a reference clock signal, a first output end for outputting an oscillator clock signal, and a second output end for outputting a locking signal, wherein the phase-locked loop is configured to output the oscillator clock signal according to the reference clock signal and control the reference clock signal and the oscillator clock signal to be synchronous; and the locking detection circuit is configured to output the locking signal to the second output end when the oscillator clock signal and the reference clock signal are synchronous.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 21, 2022
    Applicant: Weifang Goertek Microelectronics Co. Ltd.
    Inventors: MINGYONG Shi, Zhiyou Xu, Lide Wu
  • Patent number: 8109528
    Abstract: Embodiments of the present invention provide a suspension assembly including a bolt made from a bolt material; a suspension component made from a suspension material, the suspension component having a suspension opening therethrough, the suspension opening having a geometry for insertion of at least a first portion of the bolt; and a bushing assembly including an elastomeric element and a bushing opening therethrough, the bushing opening having a geometry for insertion of at least a second portion of the bolt; wherein the suspension material has a yield strength that is substantially higher than a yield strength of the bolt material.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: February 7, 2012
    Assignee: Automotive Casting Technology, Inc.
    Inventors: Donald Whitacre, Zhiyou Xu
  • Publication number: 20110204587
    Abstract: Embodiments of the present invention provide a suspension assembly including a bolt made from a bolt material; a suspension component made from a suspension material, the suspension component having a suspension opening therethrough, the suspension opening having a geometry for insertion of at least a first portion of the bolt; and a bushing assembly including an elastomeric element and a bushing opening therethrough, the bushing opening having a geometry for insertion of at least a second portion of the bolt; wherein the suspension material has a yield strength that is substantially higher than a yield strength of the bolt material,
    Type: Application
    Filed: February 16, 2011
    Publication date: August 25, 2011
    Inventors: DONALD WHITACRE, Zhiyou Xu
  • Patent number: 7914021
    Abstract: Embodiments of the present invention provide a suspension assembly including a bolt made from a bolt material; a suspension component made from a suspension material, the suspension component having a suspension opening therethrough, the suspension opening having a geometry for insertion of at least a first portion of the bolt; and a bushing assembly including an elastomeric element and a bushing opening therethrough, the bushing opening having a geometry for insertion of at least a second portion of the bolt; wherein the suspension material has a yield strength that is substantially higher than a yield strength of the bolt material.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: March 29, 2011
    Assignee: Automotive Casting Technology, Inc.
    Inventors: Donald Whitacre, Zhiyou Xu
  • Publication number: 20090218776
    Abstract: Embodiments of the present invention provide a suspension assembly including a bolt made from a bolt material; a suspension component made from a suspension material, the suspension component having a suspension opening therethrough, the suspension opening having a geometry for insertion of at least a first portion of the bolt; and a bushing assembly including an elastomeric element and a bushing opening therethrough, the bushing opening having a geometry for insertion of at least a second portion of the bolt; wherein the suspension material has a yield strength that is substantially higher than a yield strength of the bolt material.
    Type: Application
    Filed: November 19, 2007
    Publication date: September 3, 2009
    Inventors: Donald E. Whitacre, Zhiyou Xu
  • Patent number: 4875375
    Abstract: An axial-torsional extensometer for measuring deformation of a specimen subjected to combined axial-torsional loading conditions. The extensometer includes a first holder plate having a first set ring which includes means for securing it to a specimen at a first axial location. A first pair of guide tubes are attached to the first holder plate and are disposed on opposite sides of the first set ring. A second holder plate has a second set ring rotatably attached to it and includes means for securing the second set ring to a specimen at a second axial location axially spaced from said first axial location. A second pair of guide tubes are attached to the second holder plate and disposed on opposite sides of the second set ring. The second pair of guide tubes are disposed to a telescopically engage the first pair of guide tubes.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: October 24, 1989
    Assignee: University of Iowa Research Foundation
    Inventors: Han-Chin Wu, Zhiyou Xu