Patents by Inventor Ehsan Hamidi

Ehsan Hamidi 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).

  • TECHNIQUES FOR SIGNAL PROCESSING IN A LIDAR SYSTEM WITH MULTIPLE RETURN WAVEGUIDES
    Publication number: 20220357438
    Abstract: A LIDAR system includes multiple waveguides to receive a return signal at different angles from a scanning mirror, multiple optical detectors to receive the return signal the plurality of waveguides, and a signal processing system operatively coupled to the plurality of optical detectors. The signal processing system is to process a signal generated from each of the optical detectors and combine the processed signals from the different optical detectors into a combined signal, wherein the combined signal is used to determine range and velocity information associated with a target.
    Type: Application
    Filed: July 20, 2022
    Publication date: November 10, 2022
    Inventors: Ehsan Hamidi, Behsan Behzadi, Pradeep Srinivasan, Mina Rezk
  • Techniques for using waveguide angles in a LIDAR system
    Patent number: 11422243
    Abstract: A LIDAR system includes an optical source and multiple waveguides at different positions within the LIDAR system to receive a return signal. A first waveguide receives a first portion of the return signal at a first angle relative to the scanning mirror and a second waveguide receives a second portion of the return signal at a second angle relative to the scanning mirror. The system further includes multiple optical detectors at different positions within the LIDAR system. A first optical detector receives the first portion of the return signal from the first waveguide and a second optical detector receives the second portion of the return signal from the second waveguide. The system further includes a signal processing system operatively coupled to the plurality of optical detectors to determine a distance and velocity of the target object based on the returned signal and corresponding positions of the plurality of waveguides.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: August 23, 2022
    Assignee: AEVA, INC.
    Inventors: Ehsan Hamidi, Behsan Behzadi, Pradeep Srinivasan, Mina Rezk
  • TECHNIQUES FOR USING WAVEGUIDE ANGLES IN A LIDAR SYSTEM
    Publication number: 20220137198
    Abstract: A LIDAR system includes an optical source and multiple waveguides at different positions within the LIDAR system to receive a return signal. A first waveguide receives a first portion of the return signal at a first angle relative to the scanning mirror and a second waveguide receives a second portion of the return signal at a second angle relative to the scanning mirror. The system further includes multiple optical detectors at different positions within the LIDAR system. A first optical detector receives the first portion of the return signal from the first waveguide and a second optical detector receives the second portion of the return signal from the second waveguide. The system further includes a signal processing system operatively coupled to the plurality of optical detectors to determine a distance and velocity of the target object based on the returned signal and corresponding positions of the plurality of waveguides.
    Type: Application
    Filed: May 13, 2021
    Publication date: May 5, 2022
    Inventors: Ehsan Hamidi, Behsan Behzadi, Pradeep Srinivasan, Mina Rezk
  • Techniques for mitigating lag-angle effects for LIDARs scans
    Patent number: 11105904
    Abstract: A LIDAR system includes an optical source and multiple waveguides at different positions within the LIDAR system to receive a return signal. A first waveguide receives a first portion of the return signal at a first angle relative to the scanning mirror and a second waveguide receives a second portion of the return signal at a second angle relative to the scanning mirror. The system further includes multiple optical detectors at different positions within the LIDAR system. A first optical detector receives the first portion of the return signal from the first waveguide and a second optical detector receives the second portion of the return signal from the second waveguide. The system further includes a signal processing system operatively coupled to the plurality of optical detectors to determine a distance and velocity of the target object based on the returned signal and corresponding positions of the plurality of waveguides.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: August 31, 2021
    Assignee: Aeva, Inc.
    Inventors: Ehsan Hamidi, Behsan Behzadi, Pradeep Srinivasan, Mina Rezk