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:
Jul. 21, 2020

Filed:

Apr. 25, 2017
Applicant:

Fuji Xerox Co., Ltd., Tokyo, JP;

Inventors:

Qiong Liu, Cupertino, CA (US);

Shang Ma, Irvine, CA (US);

Sven Kratz, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 1/02 (2020.01); G08G 1/00 (2006.01); G08C 23/04 (2006.01);
U.S. Cl.
CPC ...
G08G 1/22 (2013.01); G05D 1/0234 (2013.01); G05D 1/0293 (2013.01); G08C 23/04 (2013.01); G05D 2201/0213 (2013.01);
Abstract

Systems and methods for automated vehicle guidance based on coded lighting to enable automated vehicle following and/or regrouping. Systems use projectors to project temporal identifiers for space partitioned by pixel projections. Different space partition is associated with a different identifier. By using simple light sensors mounted on the vehicles, and decoding the sensed light signal, the vehicle can determine its precise location in the space relative to the coded light projector. This information may be used for precise vehicle guidance to enable vehicle following and/or regrouping. For vehicle following, the coded light projector is placed on a moving vehicle. For vehicle regrouping, the coded light projector may be placed on a ground or on a pole. Depending on the guidance precision requirements, the coded light precision may be adjusted by using light projectors with different resolutions.


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