VEHICLE KEY-LESS DEVICE - CALSONIC KANSEI CORP

Title:

VEHICLE KEY-LESS DEVICE

Document Type and Number:

WIPO Patent Application WO/2008/004459

Kind Code:

A1

Abstract:

[PROBLEMS] To provide a vehicle key-less device capable of detecting a mobile device in a vehicle chamber even if an antenna which transmits a return request into the vehicle chamber has failed. [MEANS FOR SOLVING PROBLEMS] A search range (A) of an external antenna (45) is set to a search range (A2) which is smaller than a normal search range (A1) so that an overlapped portion with a normal search range (B1) of a search range (B) of an external antenna (46) is only inside the vehicle chamber.

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Inventors:

TSUCHIYA NOBUAKI (JP)
OTSUKA TAKASHI (JP)

Application Number:

PCT/JP2007/062767

Publication Date:

January 10, 2008

Filing Date:

June 26, 2007

Export Citation:

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Assignee:

CALSONIC KANSEI CORP (JP)
TSUCHIYA NOBUAKI (JP)
OTSUKA TAKASHI (JP)

International Classes:

E05B49/00; B60R25/01; B60R25/04; B60R25/24; B60R25/30

Foreign References:

JP2003106019A	2003-04-09
JP2003201784A	2003-07-18
JP2005112177A	2005-04-28
JP2000145226A	2000-05-26
JP2006013799A	2006-01-12
JP2004132028A	2004-04-30
JP2004131974A	2004-04-30
JP2006249828A	2006-09-21
JP2006125098A	2006-05-18
US20050258936A1	2005-11-24
US6437683B1	2002-08-20
US6218932B1	2001-04-17

Other References: