Patents by Inventor Mark A. Drummer

Mark A. Drummer 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).

  • Publication number: 20250172672
    Abstract: A system comprises a light source, a scanner, an optical limiter, and a receiver sensor. The light source is configured to emit an output beam comprising pulses of light. The scanner is configured to scan the output beam across a field of regard of the system. The optical limiter is configured to non-linearly affect a received light based on an intensity of the received light. The receiver sensor is configured to detect at least a portion of the received light exiting the optical limiter, the detected light comprising at least a portion of one of the emitted pulses of light scattered by an object located a distance from the system.
    Type: Application
    Filed: November 26, 2024
    Publication date: May 29, 2025
    Inventors: Lawrence Shah, Roger S. Cannon, Mark A. Drummer
  • Patent number: 11536803
    Abstract: In one embodiment, a lidar system includes a light source configured to emit multiple optical signals directed into a field of regard of the lidar system. The optical signals include a first optical signal and a second optical signal, where the second optical signal is emitted a particular time interval after the first optical signal is emitted. The lidar system also includes a receiver configured to detect a received optical signal that includes a portion of the emitted first or second optical signal that is scattered by a target located a distance from the lidar system. The received optical signal is detected after the second optical signal is emitted. The receiver includes a first detector configured to detect a first portion of the received optical signal and a second detector configured to detect a second portion of the received optical signal.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 27, 2022
    Assignee: Luminar, LLC
    Inventors: Stephen D. Gaalema, Mark A. Drummer, Stephen L. Mielke, Jason M. Eichenholz
  • Publication number: 20200182968
    Abstract: In one embodiment, a lidar system includes a light source configured to emit multiple optical signals directed into a field of regard of the lidar system. The optical signals include a first optical signal and a second optical signal, where the second optical signal is emitted a particular time interval after the first optical signal is emitted. The lidar system also includes a receiver configured to detect a received optical signal that includes a portion of the emitted first or second optical signal that is scattered by a target located a distance from the lidar system. The received optical signal is detected after the second optical signal is emitted. The receiver includes a first detector configured to detect a first portion of the received optical signal and a second detector configured to detect a second portion of the received optical signal.
    Type: Application
    Filed: August 29, 2019
    Publication date: June 11, 2020
    Inventors: Stephen D. Gaalema, Mark A. Drummer, Stephen L. Mielke, Jason M. Eichenholz
  • Patent number: 10401480
    Abstract: In one embodiment, a lidar system includes a light source configured to emit multiple optical signals directed into a field of regard of the lidar system. The optical signals include a first optical signal and a second optical signal, where the second optical signal is emitted a particular time interval after the first optical signal is emitted. The lidar system also includes a receiver configured to detect a received optical signal that includes a portion of the emitted first or second optical signal that is scattered by a target located a distance from the lidar system. The received optical signal is detected after the second optical signal is emitted. The receiver includes a first detector configured to detect a first portion of the received optical signal and a second detector configured to detect a second portion of the received optical signal.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: September 3, 2019
    Assignee: Luminar Technologies, Inc.
    Inventors: Stephen D. Gaalema, Mark A. Drummer, Stephen L. Mielke, Jason M. Eichenholz
  • Patent number: 10340651
    Abstract: In one embodiment, a lidar system includes a light source configured to emit a ranging pulse of light that is directed into a field of regard of the lidar system. The lidar system also includes a fiber-optic splitter configured to split off a portion of the ranging pulse of light to produce a trigger pulse of light that is directed to a receiver of the lidar system. The receiver is configured to detect, at a first time, at least a portion of the trigger pulse of light; and detect, at a second time subsequent to the first time, a portion of the ranging pulse of light scattered by a target located a distance from the lidar system. 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 the first time and the second time.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 2, 2019
    Assignee: Luminar Technologies, Inc.
    Inventors: Mark A. Drummer, Scott R. Campbell, Alain Villeneuve, Laurance S. Lingvay