Surface acoustic wave identification tag having enhanced data content and methods of operation and manufacture thereof
US6966493B2 · kind B2 · utility
18Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Jan 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/755
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A surface acoustic wave (SAW) identification tag and methods of operating and manufacturing the tag. In one embodiment, the tag includes: (1) a piezoelectric substrate having a SAW transducer located thereon, (2) a group of slots arranged by both pulse position and phase position on said substrate; and (3) a number of reflectors distributed among the slots such that the reflectors encode a number by both pulse position and phase position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.