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:
Aug. 18, 2015
Filed:
Sep. 30, 2011
Oliver Gelhard, Hannover, DE;
Oliver Gelhard, Hannover, DE;
Sennheiser electronic GmbH & Co. KG, Wedemark, DE;
Abstract
A headset or earphone is provided, having an electro-acoustic reproduction transducer with an oscillator coil arranged in an axis. An amplifier is coupled to the electro-acoustic reproduction transducer. The headset or earphone also has a magnetic interference sensor for measuring a magnetic interference field. A correction unit, for analyzing an output of the magnetic interference sensor and for producing a compensation signal, is coupled to the magnetic interference sensor. In addition, the headset or earphone also includes an adding unit for adding the compensation signal to an input signal and for outputting the result to the amplifier.