Patents by Inventor Izhak Hod

Izhak Hod 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).

  • Quadrature local oscillator signal generation systems and methods
    Patent number: 10938396
    Abstract: A quadrature based voltage controlled oscillator (VCO) local oscillator (LO) system is disclosed. The system includes a phase detector, a quadrature phase VCO, a quadrature control path, an in-phase control path, and an in-phase VCO. The phase detector is configured to compare and generate phase error between a reference clock and an in-phase VCO output. The quadrature control path configured to generate a quadrature control voltage based on a quadrature VCO output and the in-phase VCO output. The quadrature phase VCO configured to generate the quadrature VCO output based on the quadrature control voltage and the generated phase error. The in-phase control path configured to generate an in-phase control voltage based on the quadrature VCO output and the in-phase VCO output. The in-phase VCO is configured to generate the in-phase VCO output based on the in-phase control voltage and the generated phase error. An all digital dual mode phase locked/phase tracking loop LO generate system is also disclosed.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: March 2, 2021
    Assignee: Apple Inc.
    Inventors: Abhishek Agrawal, Alon Cohen, Gil Horovitz, Somnath Kundu, Run Levinger, Stefano Pellerano, Jahnavi Sharma, Evgeny Shumaker, Izhak Hod
  • QUADRATURE LOCAL OSCILLATOR SIGNAL GENERATION SYSTEMS AND METHODS
    Publication number: 20200295765
    Abstract: A quadrature based voltage controlled oscillator (VCO) local oscillator (LO) system is disclosed. The system includes a phase detector, a quadrature phase VCO, a quadrature control path, an in-phase control path, and an in-phase VCO. The phase detector is configured to compare and generate phase error between a reference clock and an in-phase VCO output. The quadrature control path configured to generate a quadrature control voltage based on a quadrature VCO output and the in-phase VCO output. The quadrature phase VCO configured to generate the quadrature VCO output based on the quadrature control voltage and the generated phase error. The in-phase control path configured to generate an in-phase control voltage based on the quadrature VCO output and the in-phase VCO output. The in-phase VCO is configured to generate the in-phase VCO output based on the in-phase control voltage and the generated phase error. An all digital dual mode phase locked/phase tracking loop LO generate system is also disclosed.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 17, 2020
    Inventors: Abhishek Agrawal, Alon Cohen, Gil Horovitz, Somnath Kundu, Run Levinger, Stefano Pellerano, Jahnavi Sharma, Evgeny Shumaker, Izhak Hod