Is a
Patent attributes
Patent Applicant
0
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Stephen J. Maguire0
Date of Patent
July 13, 2021
0Patent Application Number
163604200
Date Filed
March 21, 2019
0Patent Citations
Patent Primary Examiner
Patent 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.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
