Patent · US Expired

Data carrier for the contactless reception of amplitude-modulated signals

US6323728A · kind A · utility

11Cited by

4References

12Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Doris Schmitt-Landsiedel · Ottobrunn, DE
Gerhard Schraud · Mering, DE
Robert Reiner · Neubiberg, DE
Volker Gungerich · Hersbruck, DE

Key dates

Filing date	Sep 5, 2000
Grant date	Nov 27, 2001
Priority date	—
Expiry date	Sep 5, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG06K19/0723
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A data carrier includes at least one coil for the contactless reception of amplitude-modulated signals. A rectifier circuit is connected downstream of the coil. A circuit configuration processes and/or stores data. A supply-voltage control circuit is connected in parallel with the circuit configuration. A current measuring device acts as an amplitude demodulator and is disposed between the coil and the voltage-supply control circuit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.