Invention Grant
- Patent Title: Dynamic microphone
- Patent Title (中): 动态麦克风
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Application No.: US13307205Application Date: 2011-11-30
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Publication No.: US08447056B2Publication Date: 2013-05-21
- Inventor: Hiroshi Akino , Hiroaki Furuya , Haruhito Shimura , Satoshi Yoshino
- Applicant: Hiroshi Akino , Hiroaki Furuya , Haruhito Shimura , Satoshi Yoshino
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Audio-Technica
- Current Assignee: Kabushiki Kaisha Audio-Technica
- Current Assignee Address: JP Tokyo
- Agency: Whitham Curtis Christofferson & Cook, PC
- Priority: JP2010-269015 20101202
- Main IPC: H04R25/00
- IPC: H04R25/00

Abstract:
A dynamic microphone includes a vibration pickup that detects vibration of a dynamic microphone unit, and outputs a signal for cancelling vibration noise; and a microphone case that supports the microphone unit and the vibration pickup, wherein the vibration pickup includes a laminated ceramic piezoelectric element that detects vibration of a microphone unit case and outputs a signal corresponding to the detected vibration, the laminated ceramic piezoelectric element has a capacitance that defines a resonance circuit in conjunction with an inductance of an inductor, the resonance circuit producing a response signal to acceleration corresponding to that of the vibration noise, and the resonance circuit is connected such that the response signal is output in an opposite direction to the vibration noise signal.
Public/Granted literature
- US20120140972A1 Dynamic Microphone Public/Granted day:2012-06-07
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