Pneumatic tire having a transponder therein, and a method of and a device for reading and writing of a transponder

• US 6,257,289 B1
• Filed: 12/13/1995
• Issued: 07/10/2001
• Est. Priority Date: 08/18/1993
• Status: Expired due to Fees

• Current Assignee: Bridgestone Corporation
• Original Assignee: Bridgestone Corporation
• Inventors: Tomita, Naotaka, Sugimoto, Tatsuo
• Primary Examiner(s): Lorin, Francis J.
• Application Number:
  US08/571,702
• Time in Patent Office: 2,036 Days
• Field of Search: 152/152.1, 152/450, 340/442, 340/445, 731/465, 343/873
• US Class Current: 152/152.1
• CPC Class Codes: B29D 2030/0077 Directly attaching monitoring devices to tyres before or after vulcanization, e.g. microchips
• CPC Class Codes: B29D 2030/0083 Attaching monitoring devices to tyres before or after vulcanization by inserting them inside tyre cavities
• CPC Class Codes: B60C 13/001 Decorating, marking or the like
• CPC Class Codes: B60C 23/0479 Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
• CPC Class Codes: B60C 23/0493 for attachment on the tyre
• CPC Class Codes: G06K 19/07764 the adhering arrangement making the record carrier attachable to a tire tire temperature or pressur control arrangements, see B60C23/00
• CPC Class Codes: H01Q 1/2241 used in or for vehicle tyres
• CPC Class Codes: Y10T 152/10495 Pneumatic tire or inner tube

Abstract

A pneumatic tire having a transponder therein comprises a pair of sidewall portions and a crown portion toroidally arranged between a pair of bead cores, and a method of reading and writing of the transponder buried in the tire, wherein the transponder is buried in a projected portion at the inner surface of a bead portion of the tire, and the axial direction of the transponder is along the circumferential direction of the tire, and a rod antenna used for receiving and transmission for the transponder is moved as an axial line of the rod antenna along the circumferential direction of the tire when the reading and writing is done from outside of the tire.

Claims

1. A method of reading and writing of a transponder containing a rod antenna which is arranged at an inner surface of a tire and an axial direction of the rod antenna is along the circumferential direction of the tire, comprising the steps of;

using an external rod antenna for receiving and transmitting to the transponder in the tire, positioning said external rod antenna such that an axial line of the external rod antenna is along the circumferential direction of the tire;

moving the external rod antenna along the circumferential direction and reading and writing to and from said transponder from outside of the tire.

2. The method of claim 1 wherein, said external rod is positioned over a tire tread and substantially along a centerline line of said tread in the circumferential direction of said tire.

3. The method of claim 1 wherein, said external rod is positioned adjacent a sidewall portion of said tire.