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:
Sep. 10, 2024

Filed:

Dec. 22, 2020
Applicant:

Waymo Llc, Mountain View, CA (US);

Inventors:

Paul Karplus, Redwood City, CA (US);

Blaise Gassend, East Palo Alto, CA (US);

Nicholas Armstrong-Crews, Mountain View, CA (US);

Scott McCloskey, Mountain View, CA (US);

Assignee:

Waymo LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 3/08 (2006.01); G01S 7/484 (2006.01); G01S 7/486 (2020.01); G01S 17/18 (2020.01); G01S 7/481 (2006.01);
U.S. Cl.
CPC ...
G01S 17/18 (2020.01); G01S 7/484 (2013.01); G01S 7/486 (2013.01); G01S 7/4817 (2013.01);
Abstract

The present disclosure relates to systems and methods for occlusion detection. One example method involves a light detection and ranging (LIDAR) device scanning at least a portion of an external structure within a field-of-view (FOV) of the LIDAR device. The LIDAR device is physically coupled to the external structure. The scanning comprises transmitting light pulses toward the external structure through an optical window, and receiving reflected light pulses through the optical window. The reflected light pulses comprise reflections of the transmitted light pulses returning back to the LIDAR device from the external structure. The method also involves detecting presence of an occlusion that at least partially occludes the LIDAR device from scanning the FOV based on at least the scan of the at least portion of the external structure.


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