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1. (WO2013153802) MOTION SENSOR, AND ELECTRONIC APPARATUS USING SAME

Pub. No.:    WO/2013/153802    International Application No.:    PCT/JP2013/002427
Publication Date: Fri Oct 18 01:59:59 CEST 2013 International Filing Date: Thu Apr 11 01:59:59 CEST 2013
IPC: G01C 19/5614
H03F 3/45
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: UEMURA, Takeshi
植村 猛
MURAKAMI, Hideyuki
村上 英之
UEDA, Shinjiro
上田 真二郎
SUDO, Ryota
須藤 良太
Title: MOTION SENSOR, AND ELECTRONIC APPARATUS USING SAME
Abstract:
 A motion sensor provided with: a sensor element that outputs a sense signal in response to a motion that is applied; and a detector circuit that detects motion on the basis of the sense signal. The detector circuit has a sensor element signal amplifier into which the sense signal is input. The operation of the sensor element signal amplifier is switchable between a normal mode and a low noise mode that consumes more power than the normal mode and that has little noise. The motion sensor can detect, with high accuracy, small and large motions.