| 摘要 |
A data carrier ( 1 ) for contactless communication with the communication station comprises firstly a reception stage ( 3 ) for receiving an interrogation signal (IS), secondly a generation stage ( 17 ) for generating a response signal (RS) upon reception of the interrogation signal (IS), thirdly a processing circuit ( 18 ) for processing the response signal (RS) into a transmission signal (MCRS) suitable for transmission to the communication station, fourthly a determination device ( 22 ) for determinating at least one representative value (REP 1 , REP 2 ), the representative value (REP 1 , REP 2 ) representing the field strength of the field acting on the data carrier ( 1 ), and fifthly a control connection ( 25 ) between the determination device ( 22 ) and the processing circuit ( 18 ), wherein the processing circuit ( 18 ) is influenced via the control connection ( 25 ) in order to vary a transmission parameter of a transmission signal generated by the processing circuit ( 18 ) as a function of the at least one representative value (REP 1 , REP 2 ).
|
