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Radio Transponder and Method for Data Transmission Between a Radio Transponder Reader and the Radio Transponder
Radio Transponder and Method for Data Transmission Between a Radio Transponder Reader and the Radio Transponder
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机译:无线电应答器读卡器与无线电应答器之间的数据传输的无线电应答器和方法
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摘要
A radio transponder and method for data transfer between a radio transponder reading device and the radio transponder, wherein a control unit of the radio transponder controls a change in a load impedance via a control signal having a selected switching pulse frequency and a selected switching pulse quantity to produce a response signal, where the control unit codes multiple-valued at least ternary symbols into the control signal, and where symbol values are assigned to respective switching pulse sequences each having a unique combination of switching pulse frequency, switching pulse number and phase shift such that only combinations for which the quotient of switching pulse number and switching pulse frequency lies within a predefined value range are selected.
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