Invention Grant
- Patent Title: Directional noise suppression
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Application No.: US16783059Application Date: 2020-02-05
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Publication No.: US11508348B2Publication Date: 2022-11-22
- Inventor: Malay Gupta , Joel Clark
- Applicant: Motorola Mobility LLC
- Applicant Address: US IL Chicago
- Assignee: Motorola Mobility LLC
- Current Assignee: Motorola Mobility LLC
- Current Assignee Address: US IL Chicago
- Main IPC: H04R3/00
- IPC: H04R3/00 ; H04R1/40 ; G10L17/00 ; G10K11/175

Abstract:
Systems and methods of providing improved directional noise suppression in an electronic device implement a technique that specifies a direction or speaker of interest, determines the directions corresponding to speakers not lying in the direction of interest, beam forms the reception pattern of the device microphone array to focus in the direction of interest and suppresses signals from the other directions, creating beam formed reception data. A spatial mask is generated as a function of direction relative to the direction of interest. The spatial mask emphasizes audio reception in the direction of interest and attenuates audio reception in the other directions. The beam formed reception data is then multiplied by the spatial mask to generate an audio signal with directional noise suppression.
Public/Granted literature
- US20210241744A1 DIRECTIONAL NOISE SUPPRESSION Public/Granted day:2021-08-05
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