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Title:
ELECTRONIC KEY
Document Type and Number:
Japanese Patent JP2009221835
Kind Code:
A
Abstract:

To provide an electronic key, reducing influence of driving voltage waveform noise of a loaded display means by a simple method.

This electronic key includes: a transmit/receive means 5 capable of mutually radio communicating with a controlled object (a vehicle) A having a locked and unlocked door; a display means 6 for displaying various kinds of information pieces; and a control means 3 for controlling the transmit/receive means 5 and the display means 6, wherein a lock/unlock control signal for controlling locking and unlocking of the door can be transmitted from at least the transmit/receive means 5. The control means 3 causes pause or extinction of the display means 6 during a period of transmitting the lock/unlock control signal from the transmit/receive means 5 or receiving various signals from the controlled object.


Inventors:
SAKAI KAZUNORI
KOBAYASHI NOBUAKI
Application Number:
JP2008000179651
Publication Date:
October 01, 2009
Filing Date:
July 10, 2008
Export Citation:
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Assignee:
NIPPON SEIKI CO LTD
International Classes:
E05B49/00; B60R25/01; B60R25/24; B60R25/40
Domestic Patent References:
JP2005009200A2005-01-13
JP2001027681A2001-01-30
JP2002074306A2002-03-15
JP2006055431A2006-03-02
JP2001332994A2001-11-30
JP2003067859A2003-03-07



 
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