Title:
METHOD OF MEASURING ANGLE BETWEEN TWO BODY PARTS OF FOLDABLE DEVICE, AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/054715
Kind Code:
A1
Abstract:
Disclosed is a device and method for measuring an angle of a foldable device. A first magnetic sensor unit installed on a first body part of the foldable device detects the magnitude of an external magnetic field applied thereto and generates first orientation information representing the direction in which the first body part is oriented. A second magnetic sensor unit foldably coupled to the first body part and installed on a second body part of the foldable device detects the magnitude of an external magnetic field applied thereto and generates second orientation information representing the direction in which the second body part is oriented. A control unit calculates the angle between the first body part and the second body part by using the first orientation information and the second orientation information. The first and second magnetic sensor units may each be implemented as a magnetic fluxgate sensor unit. The magnitude of the origin offset that each of the magnetic fluxgate sensor units has in an initial state can be obtained in advance and applied to the calculation of the angle.
Inventors:
PARK JUNGWON (KR)
Application Number:
PCT/KR2020/012490
Publication Date:
March 25, 2021
Filing Date:
September 16, 2020
Export Citation:
Assignee:
ILJIN MAT CO LTD (KR)
International Classes:
G09F9/30; G01B7/30; G06F1/16
Foreign References:
| US20130215041A1 | 2013-08-22 | |||
| JPH0949738A | 1997-02-18 | |||
| KR20080076892A | 2008-08-20 | |||
| JP4663738B2 | 2011-04-06 | |||
| KR20140096861A | 2014-08-06 |
Attorney, Agent or Firm:
PARK, Young-woo (KR)
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