Invention Grant
- Patent Title: Methods and apparatus for the targeted sound detection
- Patent Title (中): 用于目标声音检测的方法和装置
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Application No.: US11381725Application Date: 2006-05-04
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Publication No.: US07783061B2Publication Date: 2010-08-24
- Inventor: Gary M. Zalewski , Richard L. Marks , Xiadong Mao
- Applicant: Gary M. Zalewski , Richard L. Marks , Xiadong Mao
- Applicant Address: JP Tokyo
- Assignee: Sony Computer Entertainment Inc.
- Current Assignee: Sony Computer Entertainment Inc.
- Current Assignee Address: JP Tokyo
- Agency: JDI Patent
- Agent Joshua D. Isenberg
- Main IPC: H04R3/00
- IPC: H04R3/00

Abstract:
Targeted sound detection methods and apparatus are disclosed. A microphone array has two or more microphones M0 . . . MM. Each microphone is coupled to a plurality of filters. The filters are configured to filter input signals corresponding to sounds detected by the microphones thereby generating a filtered output. One or more sets of filter parameters for the plurality of filters are pre-calibrated to determine one or more corresponding pre-calibrated listening zones. Each set of filter parameters is selected to detect portions of the input signals corresponding to sounds originating within a given listening zone and filter out sounds originating outside the given listening zone. A particular pre-calibrated listening zone is selected at a runtime by applying to the plurality of filters a set of filter coefficients corresponding to the particular pre-calibrated listening zone. As a result, the microphone array may detect sounds originating within the particular listening sector and filter out sounds originating outside the particular listening zone.
Public/Granted literature
- US20070025562A1 METHODS AND APPARATUS FOR TARGETED SOUND DETECTION Public/Granted day:2007-02-01
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