HEARING AID WITH EAR EEG RECORDING

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, whe...

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Bibliographische Detailangaben
Hauptverfasser:	ZHU, Lin, LIU, Xiaodong, JALONEN, Seri, HANSEN, Peter Søren Kirk, GUDNASON, Gunnar
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HUMAN NECESSITIES HYGIENE IDENTIFICATION LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEDICAL OR VETERINARY SCIENCE PUBLIC ADDRESS SYSTEMS SURGERY
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Beschreibung
Zusammenfassung:	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.