Title:
CHECKING DEVICE AND KEYLESS ENTRY DEVICE
Document Type and Number:
Japanese Patent JPH10169271
Kind Code:
A
Abstract:
To prevent illegal unlocking or the like that is done by an illegal checking operation on a keyless entry' device which receives a code signal, checks the input code received with a prestored code, and performs locking or unlocking action according to the result checked.
A central processing unit 23 on the receiving side determines whether or not an input code received has similarity to a stored code, and, when a specified number or more of input codes received that have similarity are received within a specified time, determines that illegal checking has been done. When illegal checking has been identified, the command to operate an actuator 25 is inhibited by the central processing unit 23 to disable locking or unlocking action.
Inventors:
NISHIDAI TETSUO
Application Number:
JP33245696A
Publication Date:
June 23, 1998
Filing Date:
December 12, 1996
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO
International Classes:
E05B49/00; B60R25/01; B60R25/104; B60R25/24; E05B83/16; E05B83/36; H04Q9/00; (IPC1-7): E05B49/00; B60R25/00; E05B65/19; E05B65/20; H04Q9/00
Attorney, Agent or Firm:
Kashima Hidemi