Data carrier with load modulation means and with improved power supply in the process of load modulation
US6301138A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2000 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Oct 16, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/009
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data carrier (1) having a transmission coil (2) and having an integrated circuit (3) connected to the transmission coil (2) the integrated circuit includes rectifier means (9), energy storage means (10), data processing means (13) and load modulation means (14), and additional means (18) are connected to the load modulation means (14) and to the energy storage means (10), the additional means (18), when the load modulation means (14) are in their active condition, enabling a part of the energy stored in the transmission coil (2) to be applied to the energy storage means (10), which are connected to the additional means (18), the energy storage means (10) connected to the additional means (18) being utilized for powering the data processing means (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.