The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 21, 2025

Filed:

Oct. 16, 2023
Applicant:

Waymo Llc, Mountain View, CA (US);

Inventors:

Luke Wachter, San Francisco, CA (US);

Pierre-Yves Droz, Los Altos, CA (US);

Clayton Kunz, Mill Valley, CA (US);

Assignee:

Waymo LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/4861 (2020.01); G01S 7/497 (2006.01); G01S 17/04 (2020.01); G01S 17/931 (2020.01);
U.S. Cl.
CPC ...
G01S 7/4861 (2013.01); G01S 7/497 (2013.01); G01S 17/04 (2020.01); G01S 17/931 (2020.01);
Abstract

Systems and methods are disclosed to identify a presence of a volumetric medium in an environment associated with a LIDAR system. In some implementations, the LIDAR system may emit a light pulse into the environment, receive a return light pulse corresponding to reflection of the emitted light pulse by a surface in the environment, and determine a pulse width of the received light pulse. The LIDAR system may compare the determined pulse width with a reference pulse width, and determine an amount of pulse elongation of the received light pulse. The LIDAR system may classify the surface as either an object to be avoided by a vehicle or as air particulates associated with the volumetric medium based, at least in part, on the determined amount of pulse elongation.


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