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. 04, 2026
Filed:
Mar. 17, 2022
Oticon A/s, Smørum, DK;
Lin Zhu, Smørum, DK;
Gunnar Gudnason, Smørum, DK;
Seri Jalonen, Smørum, DK;
Xiaodong Liu, Smørum, DK;
Peter Søren Kirk Hansen, Smørum, DK;
OTICON A/S, Smørum, DK;
Abstract
A hearing aid includes a plurality of electrode units, where each of the plurality of electrode units includes an electrode configured to provide an electrical stimulation to a user of the hearing aid and/or to measure a bio response signal of the user; a plurality of electrode channel circuits, where each of the plurality of electrode channel circuits includes: an operational amplifier comprising a first input terminal configured to receive the bio response signal and provide an amplified bio response signal, and the operational amplifier includes a first load input; a first DC offset unit configured to reduce the impact of DC offset in the electrode channel circuit of the plurality of electrode channel circuits by receiving a part of the amplified bio response signal and converting it to a feedback current signal which is transmitted to the first load input for providing balanced drain currents in the operational amplifier.