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:
Jul. 13, 2021
Filed:
Mar. 21, 2019
Applicant:
Bose Corporation, Framingham, MA (US);
Inventor:
Stephen J. Maguire, Grafton, MA (US);
Assignee:
Bose Corporation, Framingham, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/028 (2006.01); G01R 33/00 (2006.01); H04R 1/10 (2006.01); H04S 7/00 (2006.01);
U.S. Cl.
CPC ...
G01R 33/028 (2013.01); G01R 33/0094 (2013.01); H04R 1/1016 (2013.01); H04S 7/304 (2013.01);
Abstract
A wearable audio device with a magnetic field sensor that is constructed and arranged to sense the Earth's magnetic field. A magnet in the earphone, for example the magnet of the electro-acoustic transducer, produces a first magnetic field having a first magnetic field strength. A nulling magnet produces a nulling magnetic field along at least a first nulling magnet axis. The nulling magnet is configured to reduce an influence of the first magnetic field on the magnetic field sensor. The first nulling magnet axis, the first magnet axis, and the first sense axis are aligned.