US 12,169,254 B2
Adaptive coding for lidar systems
Xuezhou Zhu, Shanghai (CN); and Shaoqing Xiang, Shanghai (CN)
Assigned to HESAI TECHNOLOGY CO., LTD., Shanghai (CN)
Filed by Hesai Technology Co., Ltd., Shanghai (CN)
Filed on May 28, 2024, as Appl. No. 18/675,797.
Application 18/675,797 is a continuation of application No. 18/196,231, filed on May 11, 2023.
Application 18/196,231 is a continuation of application No. 16/803,805, filed on Feb. 27, 2020, granted, now 11,686,827.
Application 16/803,805 is a continuation of application No. 16/539,240, filed on Aug. 13, 2019, granted, now 10,620,302.
Application 16/539,240 is a continuation of application No. 16/175,274, filed on Oct. 30, 2018, granted, now 10,466,342.
Application 16/175,274 is a continuation of application No. PCT/CN2018/109049, filed on Sep. 30, 2018.
Claims priority of application No. 201810678690.4 (CN), filed on Jun. 27, 2018.
Prior Publication US 2024/0310495 A1, Sep. 19, 2024
Int. Cl. G01S 7/48 (2006.01); G01S 7/4865 (2020.01); G01S 7/487 (2006.01); G01S 17/10 (2020.01)
CPC G01S 7/4865 (2013.01) [G01S 7/4873 (2013.01); G01S 17/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A Lidar system for measuring distances to objects in a 3D environment, the Lidar system comprising:
an emitting module comprising a plurality of lasers that are coupled with a driving circuit and are arranged at different heights along a vertical direction; and
a receiving module comprising a plurality of detectors having one or more single-photon avalanche diodes, the plurality of detectors configured to receive lasers emitted by the emitting module,
wherein each laser is capable of emitting a multi-pulse sequence substantially toward a spot in the 3D environment within a time window having a predetermined duration, and time intervals between two consecutive pulses in the multi-pulse sequence are no longer than 500 ns, and
wherein at least two lasers of the plurality of lasers are configured to emit laser pulses simultaneously.