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:
Nov. 08, 2022

Filed:

Oct. 12, 2018
Applicant:

Intrinsic Innovation Llc, Mountain View, CA (US);

Inventors:

Dirk Holz, Mountain View, CA (US);

Elizabeth Murphy, San Jose, CA (US);

Assignee:

Intrinsic Innovation LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 1/02 (2020.01); G01C 21/32 (2006.01); G05D 1/00 (2006.01); G06F 16/29 (2019.01);
U.S. Cl.
CPC ...
G05D 1/0234 (2013.01); G01C 21/32 (2013.01); G05D 1/0027 (2013.01); G05D 1/0088 (2013.01); G06F 16/29 (2019.01); G05D 2201/0216 (2013.01);
Abstract

Embodiments are provided that include maintaining a map of a plurality of markers in an environment. The map includes a last detection time of each marker of the plurality of markers. The embodiments also include receiving a set of detected markers from a robotic device that is configured to localize in the environment using the plurality of markers. The embodiments further include updating, in the map, the last detection time of each marker which has a mapped position that corresponds to a detected position of a detected marker in the set of detected markers. The embodiments additionally include identifying, from the plurality of markers in the map, a marker having a last detection time older than a threshold amount of time. The embodiments still further include initiating an action related to the identified marker.


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