Title:
CONTROL DEVICE, AND ELECTRONIC KEY SYSTEM
Document Type and Number:
Japanese Patent JP2015052223
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To make key information of an electronic key temporarily made to be usable invalid without the operation by a user, in a control system in which operation of a device is permitted by collation of key information through wireless communication with an electronic key.SOLUTION: In an electronic key system in which a portable communication terminal imparted with key information for operation can be used as a separate key separately from a master key, a control device which performs authentication of an electronic key determines whether or not the electronic key can be used by collation of key information of the electronic key with registered key information, and, in a case that the electronic key can be used, permits operation of a vehicle (S100-S130). And, when the master key is authenticated by collation of key information (S140, YES), if the separate key is authenticated before that time (S150, YES), communication information for communication with the separate key and key information of the separate key is deleted from a memory (S180, S190).
Inventors:
HIRAO YOSHITAKA
KATO TATSUYA
MITSUHARU KENICHIRO
MATSUSHITA TAKASHI
NAKAO KOJI
KATO TATSUYA
MITSUHARU KENICHIRO
MATSUSHITA TAKASHI
NAKAO KOJI
Application Number:
JP2013185245A
Publication Date:
March 19, 2015
Filing Date:
September 06, 2013
Export Citation:
Assignee:
DENSO CORP
International Classes:
E05B49/00; B60R25/24
Domestic Patent References:
| JP2012215047A | 2012-11-08 | |||
| JP2012149472A | 2012-08-09 | |||
| JP2009293283A | 2009-12-17 | |||
| JP2012041709A | 2012-03-01 | |||
| JP2012144899A | 2012-08-02 |
Foreign References:
| US20130099892A1 | 2013-04-25 |
Attorney, Agent or Firm:
Nagoya international patent business corporation