Invention Grant
- Patent Title: Shot reordering in LIDAR systems
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Application No.: US16227341Application Date: 2018-12-20
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Publication No.: US11543495B2Publication Date: 2023-01-03
- Inventor: Mark Alexander Shand
- Applicant: Waymo LLC
- Applicant Address: US CA Mountain View
- Assignee: Waymo LLC
- Current Assignee: Waymo LLC
- Current Assignee Address: US CA Mountain View
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: G01S7/484
- IPC: G01S7/484 ; G01S7/481 ; G01S7/4865 ; G01S17/931 ; G01S17/10

Abstract:
Systems and methods described herein relate to LIDAR systems and their operation. An example method includes partitioning a plurality of light-emitter devices into a plurality of groups. Each light-emitter device is associated with a given group of the plurality of groups. The method also includes selecting a group from the plurality of groups according to a predetermined group order and selecting one or more light-emitter devices from the plurality of light-emitter devices of the selected group according to a firing order. The method yet further includes, at a predetermined shot dither time, causing the selected light-emitter device to emit at least one light pulse. The predetermined shot dither time is based on a shot dither schedule. The method may additionally include repeating the method to provide a complete scan in which each light-emitter device of the plurality of light-emitter devices has emitted at least one light pulse.
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