Portable locator system
US6539393B1 · kind B1 · utility
211Cited by
57References
61Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99943
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A portable locator system for tracking movement of persons or objects within a facility and listing information relating to visits by persons or objects at different locations. The locator system includes portable wireless transmitters for transmitting identification codes and portable wireless transceivers for collecting the identification codes. The identification codes are forwarded to a central processor to determine and list the places visited and times of the visits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.