Electronic seal with radio frequency identification
US7696886B2 · kind B2 · utility
11Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2007 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Nov 19, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F3/0335
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The electronic seal with radio frequency identification of the present invention comprises a lock cylinder and a lock latching plug to form an integral lock portion, which having RF chip, RF antenna with associated electric circuits, conductors and RF chip, wherein the lock cylinder comprises a metal lower antenna tube and a metal upper antenna tube to form each opposite pole of the dipole antenna. With relay conductor and propagating conductor being built in the central hollow space to connect with RF antenna and RF chip respectively, the RFID system is activated if lock cylinder and lock latching plug joint together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.