Invention Grant
- Patent Title: Angular velocity sensor interface circuit and angular velocity detection apparatus
- Patent Title (中): 角速度传感器接口电路和角速度检测装置
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Application No.: US12256572Application Date: 2008-10-23
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Publication No.: US08127607B2Publication Date: 2012-03-06
- Inventor: Hideaki Sugibayashi
- Applicant: Hideaki Sugibayashi
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2006-122282 20060426
- Main IPC: G01P9/04
- IPC: G01P9/04 ; G01C19/56

Abstract:
An angular velocity detection apparatus includes an angular velocity detection signal amplifier circuit which amplifies an angular velocity detection signal Vo output from an angular velocity sensor, and an offset control circuit which controls an offset so as to be a reference voltage which is output when a value of an angular velocity is 0. The angular velocity detection apparatus further includes an input switch circuit which selects the reference voltage and a discharge switch circuit which short-circuits a capacitor included in a high-pass filter in an offset control period.
Public/Granted literature
- US20090031807A1 ANGULAR VELOCITY SENSOR INTERFACE CIRCUIT AND ANGULAR VELOCITY DETECTION APPARATUS Public/Granted day:2009-02-05
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