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Patent Searching and Data


Title:
ELECTRONIC KEY SYSTEM
Document Type and Number:
Japanese Patent JP2012144149
Kind Code:
A
Abstract:

To improve security performance, in an electronic key system.

When determining that a vehicle door is unlocked by mechanical collation via a mechanical key 18 or the vehicle door is illegally unlocked, a mode is transferred to a precaution mode. In this mode, an engine is started only when electric collation in an immobilizer system is established. Here, in the immobilizer system, there is no risk of performing illegal communication of using a repeater differently from a key operation free system. Thus, the security performance as the whole electronic key system can be improved.


Inventors:
KOSHIO YUKARI
MORI YASUSHI
Application Number:
JP2011000004067
Publication Date:
August 02, 2012
Filing Date:
January 12, 2011
Export Citation:
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Assignee:
TOKAI RIKA CO LTD
International Classes:
E05B19/00; B60R25/01; B60R25/04; B60R25/22; B60R25/24; E05B49/00; H04Q9/00
Attorney, Agent or Firm:
恩田 博宣
恩田 誠