Wireless communication device and method
US6483473B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Jul 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/286
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a wireless communication device that is capable of communicating using a pole antenna in a first mode and a slot antenna in a second mode. The wireless communication device contains at least one conductive tab that provide an antenna. The tab(s) form a pole antenna, and the tabs may also be attached across a slot to form a slot antenna. The wireless communication device can communicate at different frequencies using the pole antenna in a first mode and the slot antenna in a second mode. The tab(s) may be attached across a slot created in a package to form a slot antenna, or the tab(s) may be attached to a slot that is created as part of the wireless communication device to form a slot antenna. The tab(s) and/or the slot may also contain an adhesive material to attach the wireless communication device to a package, container or other material. More than one slot may be provided to form a circularly polarized antenna. The wireless communication device can be placed inside a conductive package using a slot antenna to provide unshielded communications. The wireless communication device can be further adapted to detect when the package is opened and to communica…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.