SIGNAL PROCESSING DEVICE, INERTIAL FORCE SENSOR, SIGNAL PROCESSING METHOD, AND PROGRAM

Title:

SIGNAL PROCESSING DEVICE, INERTIAL FORCE SENSOR, SIGNAL PROCESSING METHOD, AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2020/195139

Kind Code:

A1

Abstract:

This invention determines whether a correction circuit is normal. A signal processing device (1) comprises a detection circuit (11), a correction circuit (12), and a comparison circuit (13). The detection circuit (11) generates a first detection signal (Sig2) from the output signal (Sig1) of a capacitive detection element (2, 3, 4) for detecting inertial force. The correction circuit (12) corrects the non-linearity of the first detection signal (Sig2) and outputs a second detection signal (Sig3) resulting from the correction. The comparison circuit (13) compares the first detection signal (Sig2) and second detection signal (Sig3) and outputs a comparison signal (Sig4) corresponding to the result of the comparison.

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Inventors:

KURODA KEISUKE
KAJIWARA TAKUYA
NAKATSUKA JUNJI
NAGAI MASAAKI

Application Number:

PCT/JP2020/003300

Publication Date:

October 01, 2020

Filing Date:

January 30, 2020

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Assignee:

PANASONIC IP MAN CO LTD (JP)

International Classes:

G01P21/00; G01P15/125; G01P15/18

Foreign References:

JP2018115891A	2018-07-26
JP2011164073A	2011-08-25
US20040139800A1	2004-07-22
JP2002022760A	2002-01-23

Attorney, Agent or Firm:

HOKUTO PATENT ATTORNEYS OFFICE (JP)

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