Title:
An offset estimating device, an offset estimation method, and a program
Document Type and Number:
Japanese Patent JP6033418
Kind Code:
B2
Abstract:
To quickly and accurately measure offset of an angular velocity sensor mounted in a mobile device, provided is an offset estimation apparatus including an acquiring section that acquires an output signal of an angular velocity sensor mounted in a mobile device; an offset estimating section that estimates an offset of the angular velocity sensor based on a first AC component included in the output signal of the angular velocity sensor in a period during which a level of the first AC component cycles; a hold state judging section that judges a hold state of the mobile device; and a control section that controls whether the offset estimating section estimates the offset of the angular velocity sensor, according to a judgment result of the hold state judging section.
Inventors:
Masahiro Tanada
Takeshi Masuda
Shiro Kobayashi
Takeshi Masuda
Shiro Kobayashi
Application Number:
JP2015516903A
Publication Date:
November 30, 2016
Filing Date:
April 30, 2014
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
G01C19/00; H04M1/724; H04M1/00
Domestic Patent References:
| JP2011164227A | 2011-08-25 | |||
| JP2007278982A | 2007-10-25 | |||
| JPH0231108A | 1990-02-01 | |||
| JPH10122865A | 1998-05-15 | |||
| JP2007163297A | 2007-06-28 | |||
| JP2012215547A | 2012-11-08 | |||
| JPH04211230A | 1992-08-03 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation