Non-contact IC card system and attaching body for non-contact IC card
US7503505B2 · kind B2 · utility
7Cited by
2References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2006 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Jun 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07786
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A non-contact IC card can accept a frequency band different from the main receive frequency band of the non-contact IC card. The non-contact IC card has a main antenna supporting a first frequency band and an IC device connected to the main antenna for data transmission and reception. An attaching body, detachably attached to the non-contact IC card has a sub-antenna supporting a second frequency band different from the first frequency band. When the attaching body is attached to the non-contact IC card, the sub-antenna is capacitively coupled to the main antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.