DATA CARRIER PROVIDED WITH AT LEAST TWO DECODING STAGES

摘要

In a data carrier (1) which includes receiving means (5) for receiving a modulated carrier signal (MTS) which contains a data signal (DS1) encoded in conformity with an encoding method (MA, PW, MI, RTZ, FSK, PSK), demodulation means (9) for demodulating the received modulated carrier signal (MTS) and for outputting the encoded data signal (DS1) contained therein, decoding means (10, 20) for decoding the encoded data signal (DS1) and for outputting data (D1, D2), and data processing means (11) for processing the data (D1, D2) output by the decoding means (10, 20), the decoding means (10, 20) are provided with at least a first decoding stage (12) and a second decoding stage (13), the first decoding stage (12) being arranged to decode a data signal (DS1) encoded in conformity with a first method (RTZ) whereas the second decoding stage (13) is arranged to decode a data signal (DS1) encoded in conformity with a second method (MI).

主权项

1. A data carrier device comprising:
a receiving device configured to receive a modulated carrier signal, the modulated carrier signal includes an encoded data signal; a demodulation device configured to demodulate the received modulated carrier signal and outputs the included encoded data signal; and a decoding device configured decode the encoded data signal and outputting data, said decoding device including at least a first decoding stage and a second decoding stage, the first decoding stage is arranged to decode said data signal in conformity with a first decoding method whereas the second decoding stage is arranged to decode said data signal in conformity with a second decoding method.