Integrated circuit transponder in a pneumatic tire for tire identification
US4911217A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1989 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Mar 24, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10855
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A combination pneumatic tire and integrated circuit transponder for tire identification. The transponder is located within the tire structure and is capable of transmitting an identifying digital signal in response to interrogation by an R/F electric field emanating from outside the tire. The transponder then transmits the identifying signal, which is received, conditioned and demodulated. The tire has a steel-reinforced component, such as an annular tensile member in its bead or a steel-reinforced ply. The transponder has first and second electrodes, the first of which is positioned such that the average spacing of this first electrode's surface from one of the steel-reinforced tire components is substantially less than the average spacing of the second electrode's surface from such component. The transponder is capable of transmitting the electrical signal from the tire both prior to and after its valcanization, thus permitting identification and control of the tire during its manufacture and after its distribution and use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.