Acoustic wave device with modulation functionality
US7116213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2003 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Oct 26, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07764
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronics assembly for integration with a tire structure or in another environment includes a condition-responsive device, an RF source, an antenna, and at least one controllable switching element. The condition-responsive device may comprise at least one acoustic wave resonator that is configured for monitoring such parameters as pressure and temperature within a tire or associated wheel assembly environment. The frequency and bandwidth of the RF source is preferably inclusive of the respective resonant frequency bands for each acoustic wave resonator. An antenna may also be connected to the condition-responsive device for facilitating the transmission of electric signals generated therein. In some embodiments, a switching element is coupled between the condition-responsive device and the RF source. Selective control of such switching element results in the modulation of data on the RF carrier, causing the condition-responsive device to transmit both sensed condition information as well as some other predefined digital data signal. Another controllable switching element may be provided in parallel with the condition-responsive device to selectively cloak the device for predet…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.