Title:
KEY-LESS ENTRY SYSTEM FOR VEHICLE, METHOD OF ADDITIONALLY INSTALLING TRANSMISSION ANTENNA THEREOF, AND EXTENSION UNIT OF KEY-LESS ENTRY SYSTEM
Document Type and Number:
Japanese Patent JP3546429
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To additionally install a transmission antenna easily without affecting the operating performance of an existing smart key-less entry system.
SOLUTION: A transmission antenna module 110 for base system for transmitting a first detection signal is installed separately from a control unit 5 and an extension unit 150 transmitting a second detection signal from the transmission antenna 6 forming a transmission area different from the transmission area of the transmission antenna 3 according to the transmission of the first detection signal are additionally installed through a connector. The extension unit 150 allows a signal detection coil for detecting the transmission of the first detection signal to be electrically connected, at non-contact, to a signal line from the control unit 5 to the transmission antenna 3.
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Inventors:
Hideyuki Okada
Application Number:
JP2001145279A
Publication Date:
July 28, 2004
Filing Date:
May 15, 2001
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
B60J5/00; B60R25/01; B60R25/24; H01Q1/22; H01Q1/32; H04B5/02; E05B49/00; (IPC1-7): E05B49/00; B60R25/00; H01Q1/22; H01Q1/32; H04B5/02
Domestic Patent References:
| JP813874A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
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