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Title:
VEHICULAR THEFT PREVENTION DEVICE
Document Type and Number:
Japanese Patent JP2000190816
Kind Code:
A
Abstract:

To prevent the theft through releasing a handle lock using an unfair key.

A peculiar information #A is memorized in IC chip 1-1 in a key 1. The peculiar information #B is memorized in a memory unit 5. A coil (antenna) 1-3 is provided in the key 1. A coil (antenna) 2-1 is provide in a cylinder 2. When the key 1 is inserted in the cylinder 2, a controller 4 sends a radio wave from the coil 2-1 through a send/receive unit 3 and supplies an electric source to the key 1. The controller 4 reads the peculiar information #A sent from the key 1 and compares with the peculiar information #B in the memory unit 5 and when both are matched, the rotation of the key 1 inserted in the cylinder 2 is permitted and the start of an engine is permitted.


Inventors:
FUKUDA TETSUO
INAGE TAKAYUKI
Application Number:
JP1998000373938
Publication Date:
July 11, 2000
Filing Date:
December 28, 1998
Export Citation:
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Assignee:
TAMURA ELECTRIC WORKS LTD
International Classes:
B60R25/04; B60R25/24; B60R25/40; F02N15/00; (IPC1-7): B60R25/04; F02N15/00
Attorney, Agent or Firm:
山川 政樹