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. 20, 2022
Filed:
Oct. 15, 2021
Calibration of magnetic and optical sensors in a virtual reality or augmented reality display system
Applicant:
Magic Leap, Inc., Plantation, FL (US);
Inventors:
Michael Woods, Mountain View, CA (US);
Scott David Nortman, Sunrise, FL (US);
Assignee:
Magic Leap, Inc., Plantation, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 35/00 (2006.01); G01R 33/00 (2006.01); G06F 3/038 (2013.01); G06F 3/01 (2006.01); G06F 3/0346 (2013.01); G06F 1/16 (2006.01); G06F 3/03 (2006.01); G06T 19/00 (2011.01);
U.S. Cl.
CPC ...
G01R 33/0035 (2013.01); G01R 35/00 (2013.01); G06F 1/163 (2013.01); G06F 3/011 (2013.01); G06F 3/012 (2013.01); G06F 3/0304 (2013.01); G06F 3/038 (2013.01); G06F 3/0346 (2013.01); G06T 19/006 (2013.01);
Abstract
A system for calibrating alignment of two or more types of magnetic sensors in a virtual reality (VR) or augmented reality (AR) display device. The system can include a controller, a waveform generator, a magnetic field generating unit, and an electrical driver. The controller can cause the waveform generator to generate a first calibration waveform to calibrate a first type of magnetic sensor in the display device, and to generate a second calibration waveform to calibrate a second type of magnetic sensor in the display device.