Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 27, 2021
Patent Application Number
16360093
Date Filed
March 21, 2019
Patent 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 docking or parking magnet in the earphone produces a second magnetic field that is configured to reduce an influence of the first magnetic field on the magnetic field sensor.
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