Integrated portable tracking signal and access authorization signal generator
US6268797A · kind A · utility
44Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2000 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Mar 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A hand held unit is disclosed, the unit including a tracking signal generator and an access authorization signal generator, each signal generator being separately and independently actuatable by a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.