Title:
VEHICLE SYSTEM, PORTABLE MACHINE, AND VEHICLE-MOUNTED DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/088198
Kind Code:
A1
Abstract:
A vehicle system (1, 101, 201, 301) is provided with a portable machine (50), a vehicle-mounted device (10), a position acquiring unit (21, 61), an attitude acquiring unit (65) and a determining unit (22, 62). The vehicle-mounted device communicates with the portable machine by transmitting linearly polarized radio waves. The position acquiring unit acquires information representing at least a planar position of the portable machine relative to the vehicle-mounted device. The attitude acquiring unit acquires information representing a three-dimensional attitude of the portable machine. The determining unit determines whether a wave received by the portable machine is a radio wave directly received from the vehicle-mounted device, on the basis of a characteristic relating to the direction of a magnetic field or an electric field of the radio wave received by the portable machine, and on the basis of the information representing the position and the information representing the attitude.
Inventors:
KUSUMOTO TETSUYA (JP)
SAITOU TAKASHI (JP)
SAKAMOTO KOJI (JP)
SAITOU TAKASHI (JP)
SAKAMOTO KOJI (JP)
Application Number:
PCT/JP2017/038349
Publication Date:
May 17, 2018
Filing Date:
October 24, 2017
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01S5/02; B60R25/24; E05B49/00; G01B7/00; G01S13/74
Domestic Patent References:
| WO2015084852A1 | 2015-06-11 |
Foreign References:
| JP2006342545A | 2006-12-21 | |||
| JP2011135270A | 2011-07-07 | |||
| JP2004068420A | 2004-03-04 | |||
| JP2000146509A | 2000-05-26 | |||
| JP2014106009A | 2014-06-09 | |||
| JP2005148021A | 2005-06-09 | |||
| JP2011257162A | 2011-12-22 | |||
| US20150179332A1 | 2015-06-25 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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