Title:
OFFSET CALCULATION DEVICE, AZIMUTH ANGLE SENSOR, ELECTRONIC EQUIPMENT, AND OFFSET CALCULATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/229002
Kind Code:
A1
Abstract:
This offset calculation device, for example, selects, as a first data point (P1), an arbitrarily defined one point among a plurality sets of magnetism detection data sequentially acquired as data points in a triaxial coordinate system, selects, as a second data point (P2), one point located away by at least a first distance (d1) from the first data point (P1), selects, as a third data point (P3), one point located away by at least a second distance (d2) from a straight line determined by the first data point (P1) and the second data point (P2), and selects, as a fourth data point (P4), one point located away by at least a third distance (d3) from a plane determined by the first data point (P1), the second data point (P2), and the third data point (P3). In addition, an offset value of the magnetism detection data is derived by using the first data point (P1), the second data point (P2), the third data point (P3), and the fourth data point (P4).
Inventors:
KOBAYASHI TADASHI (JP)
SEIKE MASAFUMI (JP)
SEIKE MASAFUMI (JP)
Application Number:
PCT/JP2023/019472
Publication Date:
November 30, 2023
Filing Date:
May 25, 2023
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
G01C17/38; G01C17/32; G01R33/02
Domestic Patent References:
| WO2017073532A1 | 2017-05-04 |
Foreign References:
| JP2007107921A | 2007-04-26 | |||
| JP2005265414A | 2005-09-29 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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