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:
Oct. 21, 2025
Filed:
Sep. 29, 2021
Amazon Technologies, Inc., Seattle, WA (US);
Prakriti Chintalapoodi, San Jose, CA (US);
Rui Zhang, Palo Alto, CA (US);
Eric Foxlin, Belmont, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Described herein is a system for improving navigation by detecting glass surfaces. For example, the system may build an occupancy map representing objects present in an environment. The system performs additional processing to input scan data in order to detect glass surfaces and distinguish these glass surfaces from other obstacles. As glass is only detected within a narrow range of angles and the number of returns are small compared to non-glass surfaces, the system may determine whether an obstacle represented in the input scan data is glass by calculating a maximum range of angles and a number of overlapping returns for the obstacle. For example, the system may identify glass surfaces by identifying objects that are only detected within a narrow range of angles and that have a low number of overlapping returns.