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:
Jan. 30, 2024
Filed:
May. 24, 2019
Applicant:
Magic Leap, Inc., Plantation, FL (US);
Inventors:
Assignee:
Magic Leap, Inc., Plantation, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/58 (2006.01); G01S 13/536 (2006.01); G02B 27/01 (2006.01); G06V 20/64 (2022.01); G06F 18/25 (2023.01);
U.S. Cl.
CPC ...
G01S 13/536 (2013.01); G01S 13/582 (2013.01); G01S 13/587 (2013.01); G01S 13/588 (2013.01); G02B 27/0172 (2013.01); G06F 18/25 (2023.01); G06V 20/653 (2022.01);
Abstract
An augmented reality device has a radar system that generates radar maps of locations of real world objects. An inertial measurement unit detects measurement values such as acceleration, gravitational force and inclination ranges. The values from the measurement unit drift over time. The radar maps are processed to determine fingerprints and the fingerprints are combined with the values from the measurement unit to store a pose estimate. Pose estimates at different times are compared to determine drift of the measurement unit. A measurement unit filter is adjusted to correct for the drift.