公开(公告)号：US20230308814A1

公开(公告)日：2023-09-28

申请号：US18187717

申请日：2023-03-22

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Carsten SCHEEL ,  Martin BERGMANN ,  Henrik BAY ,  Morten PEDERSEN ,  Bent KROGSGAARD ,  Jacob MIKKELSEN ,  Stefan GRAM ,  Jan M. DE HAAN ,  Andreas Thelander BERTELSEN

IPC: H04R25/00 ,  G06F3/16

CPC classification number: H04R25/407 ,  H04R25/402 ,  H04R25/554 ,  G06F3/165 ,  H04R25/604 ,  H04R25/505 ,  H04R2225/55 ,  G10L25/78

Abstract: A hearing assistive device comprises a multi-microphone system for providing a processed input signal. The multi-microphone system comprises a multitude of microphones for picking up sound from an environment; and a beamformer filter configured to. The hearing assistive device further comprises an attachment element configured to fix the hearing assistive device to the body or clothes of a person. The multi-microphone system is configurable to operate in at least two modes in dependence of a mode control signal, A) a directional mode and B) an omni-directional mode wherein said multi-microphone system is configured to provide said processed input signal as a substantially directional signal, and as a substantially omni-directional signal, respectively. The attachment element is configured to provide an electric signal indicative of a current state of the attachment element. The hearing assistive device further comprises a mode controller for providing said mode control signal in dependence of said electric signal indicative of a current state of the attachment element.

公开(公告)号：US20210337306A1

公开(公告)日：2021-10-28

申请号：US16855232

申请日：2020-04-22

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Carsten SCHEEL ,  Martin BERGMANN ,  Henrik BAY ,  Morten PEDERSEN ,  Bent KROGSGAARD ,  Jacob MIKKELSEN ,  Stefan GRAM ,  Jan M. DE HAAN ,  Andreas Thelander BERTELSEN

IPC: H04R1/40 ,  H04R25/00

Abstract: A sound capture device configured to be worn by a person and/or to be located on a surface is configured to pick up target sound from a target sound source s. The sound capture device comprises a) an input unit providing a multitude of electric input signals, each comprising a target signal component and a noise signal component; b) a directional noise reduction system comprising a beamformer unit coupled to said multitude of input signals and configured to provide an estimate of the target sound s. The beamformer unit comprises b1) target maintaining, reference beamformer providing a current reference signal; and b2) a target cancelling beamformer providing a current target cancelling sign. The directional noise reduction system is configured to operate in at least two modes in dependence of a mode control signal, 1) in a directional mode and 2) in a non-directional, omni-directional mode. The sound capture device further comprises c) antenna and transceiver circuitry for establishing an audio link to another device, and to transmit said estimate of the target sound s to said another device, and d) a mode controller for determining said mode control signal in dependence of said current reference signal and said current target cancelling signal. A method of operating a sound capture device is further disclosed.