Infineon Technologies Ag

Martin H&auml;ring

Christian Schneckenburger

Viktor Preis

Lorenz Gaul

A decoding device includes a signal-conditioning device for generating an intermediate signal from an input signal, a data register for storing a time section of the intermediate signal and a bit decoder for converting the intermediate signal into an output signal having at least one bit. The decoding device also includes a pattern recognition device. The decoding device enables even severely disturbed signals to be reliably detected and correctly decoded. Simple adaptation of the decoding device to various uses is possible. A smart card including the decoding device is also provided.

Decoding device and smart card having such a decoding device

A device for a contactless transmission of data includes a data transceiver with an antenna. The impedance of the antenna of the data transceiver is purposely mismatched. A reactance is introduced into the antenna in order to tune the antenna to a frequency different from its resonant frequency. In the event that the antenna impedance has to be adapted to the characteristic impedance of a line of unknown length, the loss resistance of the antenna is deliberately increased. The power required to produce a magnetic alternating field with the data transceiver for operating at least one portable data carrier is reduced.

Growing community of inventors

San Jose, CA, United States of America

Martin Häring

Growing community of inventors

San Jose, CA, United States of America

Martin H&auml;ring

Martin Häring