Title:
TIRE SENSOR UNIT
Document Type and Number:
WIPO Patent Application WO/2003/042949
Kind Code:
A1
Abstract:
A tire sensor unit capable of receiving power from a car body side in a non−contact manner. Power is wirelessly transmitted to tire sensor units (10 (10a−10d)) attached to tires (2 (2a−2d)) from non−contact type power supplying units (40 (40a−40d)) provided on the car body side. Wireless power transmission is carried out by using electromagnetic coupling or microwave. A tire sensor unit (10) is provided with a non−contact type power receiving unit that generates a dc power supply based on energy fed from a non−contact type power supplying unit (40) to supply power necessary for the operation of a tire sensor unit (10). A tire sensor unit (10) detects an air pressure or the like and wirelessly sends that information to a receiving device (20).
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Inventors:
ICHINOSE HIDEMI (JP)
KONO YASUHIKO (JP)
KONO YASUHIKO (JP)
Application Number:
PCT/JP2002/011886
Publication Date:
May 22, 2003
Filing Date:
November 14, 2002
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
ICHINOSE HIDEMI (JP)
KONO YASUHIKO (JP)
ICHINOSE HIDEMI (JP)
KONO YASUHIKO (JP)
International Classes:
B60C23/02; B60C23/04; G08C17/02; H04B5/00; H04B5/02; G01D7/00; (IPC1-7): G08C17/02; B60C23/04; B60C23/20; B60R25/00; B60C19/00; H04B5/02
Foreign References:
| JPH095178A | 1997-01-10 | |||
| JPH08136383A | 1996-05-31 | |||
| JP2000169822A | 2000-06-20 |
Attorney, Agent or Firm:
Koyama, Yuu (5-7 Kojimach, Chiyoda-ku Tokyo, JP)
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