Title: Data medium for contactless reception of amplitude-modulated signals
Application Number: 99803626 Application Date: 1999.03.03
Publication Number: 1292906 Publication Date: 2001.04.25
Approval Pub. Date: 2005.10.12 Granted Pub. Date: 2005.10.12
International Classifi-cation: G06K19/07
Applicant(s) Name: Infineon Tech. AG Address:
Inventor(s) Name: D. Schnitt-Landsiedel;G. Schraud;R. Reiner
Attorney & Agent: zheng lizhu
Abstract:
    The invention relates to a data medium comprising at least one inductor (1) for contactless reception of amplitude-modulated signals. The data medium also comprises a rectifier circuit (2) connected in series to the inductor (1), and a circuit (3) for processing and/or storing data. A supply voltage regulating circuit (4) is connected in parallel to the circuit (3). A current measuring device (SME; RM, DS; SP, DS; TR, DS; D11, D22, DS; SP1, SP2, DS) which functions as an amplitude demodulator is arranged between the inductor (1) and the supply voltage regulating circuit (4).
Time: 5