Title:
車両のタイヤ監視システム
Document Type and Number:
Japanese Patent JP4274453
Kind Code:
B2
Abstract:
To provide an electronic device starter that does not waste electric power while it is not being used and a vehicle tire monitoring system in which the starter is used for eliminating waste of electric power of batteries for its detectors. In a vehicle tire monitoring system according to the present invention, a monitor unit sends a start signal at time intervals T 1 by using an electromagnetic wave, a rectifier circuit 33 in a detector 3 which received the start signal converts a high-frequency electromotive force caused by the start signal at an antenna 31 into electric energy, this electric energy operates a central processing section 34, a detector section 35, and a transmitting section 36, the central processing section 34 which started operating places a Field Effect Transistor 382 in the on state to supply electric power from a battery 381 to a sensor section 37 to operate the sensor section 37.
Inventors:
Yasushi Hattori
Application Number:
JP2001201267A
Publication Date:
June 10, 2009
Filing Date:
July 02, 2001
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
G08C17/02; G08C19/00; B60C23/00; B60C23/02; B60C23/04; G01M17/02; H04B1/04; H04B1/06; H04Q9/00
Domestic Patent References:
| JP8244424A | ||||
| JP3014099A | ||||
| JP62039927A | ||||
| JP4049484A | ||||
| JP2066091U | ||||
| JP8167014A | ||||
| JP1245791A |
Attorney, Agent or Firm:
Seitaka Yoshida
Yukio Nagauchi
Yukio Nagauchi