Patents by Inventor Liam J. McGregor

Liam J. McGregor 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: 12066575
    Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light. The emitted pulses of light include one or more series of standard-resolution pulses alternating with one or more series of high-resolution pulses. Each series of the standard-resolution pulses includes multiple pulses having a standard pulse period, and each series of the high-resolution pulses includes multiple pulses having a high-resolution pulse period. The standard pulse period is greater than or equal to a round-trip time associated with a maximum range of the lidar system, and the high-resolution pulse period is less than the standard pulse period. The lidar system also includes a scanner configured to scan at least a portion of the emitted pulses of light across a field of regard.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: August 20, 2024
    Assignee: Luminar Technologies, Inc.
    Inventors: Austin K. Russell, Matthew D. Weed, Liam J. McGregor, Jason M. Eichenholz
  • Publication number: 20220390572
    Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light. The emitted pulses of light include one or more series of standard-resolution pulses alternating with one or more series of high-resolution pulses. Each series of the standard-resolution pulses includes multiple pulses having a standard pulse period, and each series of the high-resolution pulses includes multiple pulses having a high-resolution pulse period. The standard pulse period is greater than or equal to a round-trip time associated with a maximum range of the lidar system, and the high-resolution pulse period is less than the standard pulse period. The lidar system also includes a scanner configured to scan at least a portion of the emitted pulses of light across a field of regard.
    Type: Application
    Filed: August 9, 2022
    Publication date: December 8, 2022
    Inventors: Austin K. Russell, Matthew D. Weed, Liam J. McGregor, Jason M. Eichenholz
  • Patent number: 11415675
    Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light and a scanner configured to scan at least a portion of the emitted pulses of light across a field of regard. The field of regard contains all or part of a target located a distance from the lidar system that is less than or equal to a maximum range of the lidar system, and one or more of the emitted pulses of light are scattered by the target. The lidar system also includes a receiver configured to detect at least a portion of the pulses of light scattered by the target. The lidar system further includes a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for an emitted pulse of light.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: August 16, 2022
    Assignee: Luminar, LLC
    Inventors: Austin K. Russell, Matthew D. Weed, Liam J. McGregor, Jason M. Eichenholz
  • Publication number: 20190107606
    Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light and a scanner configured to scan at least a portion of the emitted pulses of light across a field of regard. The field of regard contains all or part of a target located a distance from the lidar system that is less than or equal to a maximum range of the lidar system, and one or more of the emitted pulses of light are scattered by the target. The lidar system also includes a receiver configured to detect at least a portion of the pulses of light scattered by the target. The lidar system further includes a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for an emitted pulse of light.
    Type: Application
    Filed: October 9, 2018
    Publication date: April 11, 2019
    Inventors: Austin K. Russell, Matthew D. Weed, Liam J. McGregor, Jason M. Eichenholz
  • Patent number: 10209359
    Abstract: To increase the effective pulse rate of a light source in a lidar system, a controller provides control signals to the light source to transmit a light pulse once the previous light pulse has been received. The controller may communicate with a receiver in the lidar system that detects received light signals. In response to detecting a received light signal, the receiver may provide an indication of the received light signal to the controller which may in turn provide a control signal to the light source to transmit the next light pulse. The receiver may also provide characteristics of the received light signal to the controller, such as the peak power for the received light signal, the average power for the received light signal, the pulse duration of the received light signal, etc. Then the controller may analyze the characteristics to determine whether to transmit another light pulse.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: February 19, 2019
    Assignee: LUMINAR TECHNOLOGIES, INC.
    Inventors: Austin K. Russell, Matthew D. Weed, Liam J. McGregor, Lane A. Martin, Jason M. Eichenholz
  • Publication number: 20180284278
    Abstract: To increase the effective pulse rate of a light source in a lidar system, a controller provides control signals to the light source to transmit a light pulse once the previous light pulse has been received. The controller may communicate with a receiver in the lidar system that detects received light signals. In response to detecting a received light signal, the receiver may provide an indication of the received light signal to the controller which may in turn provide a control signal to the light source to transmit the next light pulse. The receiver may also provide characteristics of the received light signal to the controller, such as the peak power for the received light signal, the average power for the received light signal, the pulse duration of the received light signal, etc. Then the controller may analyze the characteristics to determine whether to transmit another light pulse.
    Type: Application
    Filed: December 18, 2017
    Publication date: October 4, 2018
    Inventors: Austin K. Russell, Matthew D. Weed, Liam J. McGregor, Lane A. Martin, Jason M. Eichenholz