Invention Grant
- Patent Title: Microphone array device
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Application No.: US14512849Application Date: 2014-10-13
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Publication No.: US10140969B2Publication Date: 2018-11-27
- Inventor: Naoshi Matsuo
- Applicant: FUJITSU LIMITED
- Applicant Address: JP Kawasaki
- Assignee: FUJITSU LIMITED
- Current Assignee: FUJITSU LIMITED
- Current Assignee Address: JP Kawasaki
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-114897 20100519
- Main IPC: G10K11/178
- IPC: G10K11/178 ; H04R3/00

Abstract:
A microphone array device includes a first sound reception unit configured to obtain a first sound signal that is input from a first microphone, a second sound reception unit configured to obtain a second sound signal that is input from a second microphone, a noise state evaluation unit configured to compare the first sound signal and the second sound signal and to obtain an evaluation parameter to evaluate an influence of a non-target sound included in the second sound signal on a target sound included in the first sound signal according to a result of the comparison, a subtraction adjustment unit configured to set a suppression amount for the second sound signal based on the evaluation parameter and to generate a third sound signal; and a subtraction unit configured to generate a signal to be output based on the third sound signal and the first sound signal.
Public/Granted literature
- US20150030174A1 MICROPHONE ARRAY DEVICE Public/Granted day:2015-01-29
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