Information carrier, apparatus, substrate, and system
US6986151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2001 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | May 6, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information carrier that contains a storage unit, an integrated circuit and a first and a second coupling element. The coupling elements are intermediate in the transfer of data and energy from a base station to the integrated circuit and vice versa. Between the base station and the coupling elements the transfer of data and energy is contactless, and preferably by capacitive coupling. Between at least the first of and preferably both of the coupling elements data and energy are transferred by means of capacitive coupling. The base station is preferably incorporated in an apparatus further containing the reading device of the storage unit. To facilitate the capacitive coupling, the base station contains a first and a second capacitor plate. The information carrier (1) and the apparatus (40) with the base station containing the capacitor plates together constitute the system, which is suitable for any protection of the information on the storage unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.