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. 10, 2023
Filed:
Sep. 23, 2021
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Guangwu Duan, Cupertino, CA (US);
Jian Guo, Milpitas, CA (US);
John Greer Elias, Townsend, DE (US);
Savas Gider, San Jose, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/20 (2006.01); H01F 7/20 (2006.01);
U.S. Cl.
CPC ...
G01D 5/2006 (2013.01); H01F 7/20 (2013.01);
Abstract
Disclosed is a compact 3-axis coil design for a magnetic tracking system. In an embodiment, compactness is achieved by using a 3-axis coil in the transmitter that includes a scaffold design with a side surface having a curved groove for guiding one or more windings of a z-axis coil, such that the physical geometry is not increased.