Bi-directional data flow in a real time tracking system
US7151453B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2002 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Sep 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/28
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods and apparatus, including computer program products, for updating information on a writable tag bound to an article. In one aspect, a method includes: receiving in a system first attribute information for a first article derived from data read automatically from a first tag bound to the article; similarly receiving second attribute information for a second article; receiving sensor information derived from a sensor coupled to the second article; receiving relationship information specifying a relationship between the articles; maintaining first and second virtual articles representing the first article and the second article and sensor information, respectively, and maintaining a context object representing the relationship; recognizing an alert condition relating to the first article; generating updated attribute information; detecting the presence of the first tag at a tag writer station after the alert condition; and causing the tag writer station to write the updated information to the first tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.