Contactless communication medium, antenna pattern-placed medium, communication apparatus, and antenna adjusting method
US8774712B2 · kind B2 · utility
100Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Sep 23, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A contactless communication medium includes a base made of an insulating material, an antenna coil section including a conductor wound in a planar shape on the base, an inductance adjusting conductor pattern that is connected in parallel to a part of the conductor in the antenna coil section, and is placed on the base, a capacitor connected to the antenna coil section, and a communication processing section that is connected to the antenna coil section and the capacitor to perform contactless communication processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.