Electronic tag position detection using radio broadcast
US6542083B1 · kind B1 · utility
48Cited by
15References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1999 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Nov 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/87
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for identification and tracking of tags distributed in a room, wherein the system includes an electromagnetic pulse generator to produce a local electromagnetic spike, a tag reactive to the local electromagnetic spike to provide a data signal, a data receiver for receiving the data signal, and a tag tracking system receiving input from the electromagnetic pulse generator and the data receiver, the tag tracking system storing state records of position and informational content of the tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.