Identification coding schemes for modulated reflectance systems
US7095311B2 · kind B2 · utility
21Cited by
18References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2003 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Nov 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0672
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An identifying coding apparatus employing modulated reflectance technology involving a base station emitting a RF signal, with a tag, located remotely from the base station, and containing at least one antenna and predetermined other passive circuit components, receiving the RF signal and reflecting back to the base station a modulated signal indicative of characteristics related to the tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.