Title:
COMMUNICATION SYSTEM, LOCATION DETERMINATION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/110913
Kind Code:
A1
Abstract:
This communication system (1) is provided with: a portable device (16); and an in-vehicle device (2) mounted in a vehicle (100).
The portable device is provided with: a reception unit (17) for receiving a request signal transmitted from the in-vehicle device; an acquisition unit (18, 19, S32) for acquiring information items that change in accordance with a change in the location of the portable device within request signal transmission areas (7-10, 11); and a transmission unit (19, 20, 21, S33) for transmitting, in response to the received request signal, a response signal including the information items to the in-vehicle device. The in-vehicle device is provided with: a transmission unit (3, 4, S1) for transmitting the request signal in the vicinity or inside the vehicle; a reception unit (12) for receiving the response signal; and a determination unit (3, S6-S9, S11) for determining, on the basis of the information items included in the received response signal, the location of the portable device within the transmission areas and/or whether or not the portable device is operating.
Inventors:
YAMAGUCHI TOHRU (JP)
Application Number:
PCT/JP2015/006336
Publication Date:
July 14, 2016
Filing Date:
December 21, 2015
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60R25/24; B60R25/40; E05B49/00
Foreign References:
| JP2011179314A | 2011-09-15 | |||
| JP2014095223A | 2014-05-22 | |||
| JP2011144624A | 2011-07-28 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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