NFC antenna using dual resonance technical field
US9406997B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 23, 2014 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Jun 29, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention is disclosed to provide an NFC antenna using dual resonance, wherein a closed circuit is formed by a capacitor and a loop antenna, and a relay unit is attached to a portable wireless terminal that forms a resonance to a predetermined frequency signal mutually transmitted between a portable wireless terminal reader and an NFC chip, and in the course of communicating between the NFC chip and the reader, the relay unit relays a signal transmitted by the reader to an NFC antenna unit, and the NFC chip relays a signal transmitted through the NFC antenna unit to the reader to thereby increase a recognition distance capable of obtaining predetermined information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.