Invention Grant
- Patent Title: Signal processing device, program, and range hood device
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Application No.: US15501345Application Date: 2015-07-09
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Publication No.: US10229666B2Publication Date: 2019-03-12
- Inventor: Masaya Hanazono , Wakio Yamada
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2014-159770 20140805
- International Application: PCT/JP2015/003476 WO 20150709
- International Announcement: WO2016/021114 WO 20160211
- Main IPC: F24C15/20
- IPC: F24C15/20 ; G10K11/178
Abstract:
A signal processing device includes a coefficient updater configured to calculate a filter coefficient based on a reference signal, an error signal, and an update parameter to set the filter coefficient in a noise cancelling filter. A parameter adjuster adjusts the update parameter according to fluctuation of the reference signal produced from an output of a reference microphone.
Public/Granted literature
- US20170229111A1 SIGNAL PROCESSING DEVICE, PROGRAM, AND RANGE HOOD DEVICE Public/Granted day:2017-08-10
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