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.
Patent No.:
Date of Patent:
Dec. 06, 2022
Filed:
Dec. 03, 2019
Amazon Technologies, Inc., Seattle, WA (US);
James Charles Zamiska, Palo Alto, CA (US);
David Allen Fotland, San Jose, CA (US);
Roger Robert Webster, Los Altos, CA (US);
Mohit Deshpande, San Jose, CA (US);
Robert Franklin Ebert, Los Altos Hills, CA (US);
Nikhil Sharma, Fremont, CA (US);
Rachel Liao, Santa Clara, CA (US);
Chang Young Kim, Newark, CA (US);
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
An autonomous mobile device (AMD) uses sensors to explore a physical space and determine the locations of obstacles. Simultaneous localization and mapping (SLAM) techniques are used by the AMD to designate as keyframes some images and their associated descriptors of features in the space. Each keyframe indicates a location and orientation of the AMD relative to those features. Anchors are specified relative to keyframes. A marker is specified relative to one or more anchors. Because markers are associated with features in the physical space, they maintain their association with the physical space through various processes such as SLAM loop closures. Markers may specify locations in the physical space, such as navigation waypoints, navigation destinations such as a goal pose for exploring an unexplored area, as an observation target to facilitate exploration, and so forth. Markers may also be used to specify block listed locations to be avoided during exploration.