Title:
DETECTING METHOD USING RADIO DEVICE
Document Type and Number:
Japanese Patent JP3910856
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To detect a point where a user frequently gets on/off an automobile, and to register the point.
SOLUTION: A master radio device 3 and a slave radio device 16 for transmitting/receiving a packet according to a prescribed rule are attached to the automobile and an object owned by the user (such as a cellular phone) respectively. The master radio device 3 transmits the packet periodically to obtain ID information from the slave radio device 16 when a door of the automobile is opened/closed. The user's getting on/off the automobile is detected based on an ID information receiving situation from the slave device 16, and the point where the user frequently gets on/off the automobile is automatically registered.
Inventors:
Kiyoto Ebisu
Kenichiro Fujita
Kenichiro Fujita
Application Number:
JP2002016721A
Publication Date:
April 25, 2007
Filing Date:
January 25, 2002
Export Citation:
Assignee:
Alpine Electronics Co., Ltd.
International Classes:
B60R25/102; B60R25/01; B60R25/04; B60R25/10; B60R25/24; B60R25/31; B60R25/34; G08B13/00; G08B25/04; G08B25/10; H04W4/04; H04W84/10; H04W84/20; (IPC1-7): B60R25/10; B60R25/04; G08B13/00; G08B25/04; G08B25/10; H04Q7/38
Domestic Patent References:
| JP2001336329A | ||||
| JP6055936A | ||||
| JP11048915A | ||||
| JP2001349108A |
Attorney, Agent or Firm:
Chimitsu Saito
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