Interrogating tags on multiple frequencies and synchronizing databases using transferable agents
US6509828B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1998 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99933
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A smart interrogator can communicate with RF tags on multiple frequencies and bandwidths and can communicate with tags from various manufacturers and thus permits assets if to be tracked even if the assets are being tracked using tags from different manufacturers. The smart interrogators communicate with a logistics server via the Internet using transferable agents that forward tag information from the interrogator to the logistics server via a Java data base connection (JDBC). The logistics server communicates with a logistic server database where transaction information from the tags is logged. The information from the interrogator is forwarded to appropriate external server and networks over the Internet. A client can query the logistics server to determine the whereabouts and status of a particular asset. The logistics server can spawn a transferable agent to locate the asset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.