Tag system
US6078258A · kind A · utility
36Cited by
15References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Jul 7, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A very low power receiver and a transmitter are integrated on one silicon chip, thereby achieving a significant miniaturization of the tag with a long life time, and at the same time offering a significant reduction in unit price, despite requiring the use of a battery. The use of a backup battery helps overcome the range problem, the high cost of the reader, and the environmental problems associated with the emission of very strong magnetic fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.