Invention Grant
- Patent Title: Portable device comprising a directional system
-
Application No.: US16855232Application Date: 2020-04-22
-
Publication No.: US11330366B2Publication Date: 2022-05-10
- 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
- Applicant: Oticon A/S
- Applicant Address: DK Smørum
- Assignee: Oticon A/S
- Current Assignee: Oticon A/S
- Current Assignee Address: DK Smørum
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04R1/40

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.
Public/Granted literature
- US20210337306A1 PORTABLE DEVICE COMPRISING A DIRECTIONAL SYSTEM Public/Granted day:2021-10-28
Information query