公开(公告)号：US11297448B2

公开(公告)日：2022-04-05

申请号：US16750854

申请日：2020-01-23

Applicant: Oticon A/S

Inventor： Thomas Lunner ,  Alejandro Lopez Valdes ,  Henrik Bendsen ,  Claus Christensen ,  Peter Schmidt ,  Ole Andersen ,  Mikkel Nielsen ,  Tanveer Bhuiyan

IPC: H04R25/00 ,  G06F3/01 ,  A61B5/16 ,  A61B5/00 ,  H04R3/00 ,  A61B5/398

Abstract: A method for picking up body signals from the head of a user comprises a) placing first and second electrodes on first and second different positions at a first side of the user's head in direct or capacitive contact with the user's head, said first side comprising a first eye of the user, the first and second electrodes being configured to pick up first and second electric potentials, respectively, from the user's body, and b) providing an Electrooculography signal representative of a corneo-retinal potential difference of said first eye of the user in dependence of said at first and second electric potentials. The first and second positions may be (substantially) located in a plane including the first eye of the user. A portable electronic device providing an Electrooculography signal, and a hearing device utilizing an Electrooculography signal is further disclosed.

公开(公告)号：US11992324B2

公开(公告)日：2024-05-28

申请号：US16014763

申请日：2018-06-21

Applicant: Oticon A/S

Inventor： Thomas Lunner ,  Martin Skoglund ,  Alejandro Lopez Valdes ,  Tanveer Bhuiyan

IPC: A61B5/398 ,  A61B3/113 ,  A61B5/00 ,  A61B5/291 ,  G06F3/01 ,  H04R25/00

CPC classification number: A61B5/398 ,  A61B5/291 ,  A61B5/6803 ,  A61B5/6817 ,  A61B5/7207 ,  G06F3/013 ,  H04R25/40 ,  A61B3/113 ,  A61B5/0006

Abstract: An electrooculography (EOG) signal capture system comprises a) a sensor array adapted for being located at one of a left or right ears of a user and/or for fully or partially being implanted in the head at left or right ears of a user, the sensor array comprising a number Ns of electric potential sensors, respectively, for sensing respective electric potentials from the user's head, where Ns is larger than or equal to two, b) electronic circuitry coupled to the sensor array and configured to provide at least two different beamformed signals (SBF1, SBF2), each being representative of a weighted combination of said electric potentials, or of signals derived therefrom, and wherein a difference between said at least two different beamformed signals (ΔPBF=SBF1−SBF2)—at least in a specific electrooculography mode of operation—represents an electrooculography signal (ΔPEOG) from one or both eyes of said user. A single-sensor EOG-system is further proposed. The invention may e.g. be used in hearing aids or other electronic wearables.