METHOD FOR TRANSFERRING DATA BETWEEN A RADIO TRANSPONDER READING DEVICE AND A RADIO TRANSPONDER, AND RADIO TRANSPONDER

For data transfer between a radio transponder reading device and a radio transponder, a control unit of the radio transponder controls a change in a load impedance by means of a control signal, whichhas a selected switching pulse frequency and a selected switching pulse quantity, in order to produce a response signal. The control units codes multiple-valued at least ternary symbols into the control signal. Symbol values are assigned to respective switching pulse sequences, which each have a unique combination of switching pulse frequency, switching pulse number and phase shift. Only combinations for which the quotient of switching pulse number and switching pulse frequency lies within a predefined value range are selected. 在无线电应答器阅读器与无线电应答器之间传输数据的方法和无线电应答器。为了在无线电应答器阅读器与无线电应答器之间进行数据传输，无线电应答器的控制单元为了生成响应信号而通过控制信号控制负载阻抗的变化，该控制信号具有选定的开关脉冲频率和选定的开关脉冲数。控制单元将多值的至少三进制的符号编码到控制信号中。符号值分别被分配给开关脉冲序列，开关脉冲序列分别具有由开关脉冲频率、开关脉冲数和相移构成的唯一组合。在此，仅选择开关脉冲数与开关脉冲频率的商在预定的值范围内的组合。