Anti-collision interrogation pulse focusing system for use with multiple surface acoustic wave identification tags and method of operation thereof
US7084768B2 · kind B2 · utility
12Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2002 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Mar 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/755
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a system for avoiding code collisions from multiple SAW identification tags and a method of operating such system. In one embodiment the invention provides for (1) focusing an interrogation pulse to within a defined space; and (2) discriminating between coded responses returned from tags located within such defined space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.