Patent ID: 8063747
Filing Date: 2011-11-22
Classification: G06K

Abstract:
1. An RFID tag, comprising: at least one antenna element; signal generation means that operates in a first mode of operation and a second mode of operation to generate a signal that represents a sequence of symbols, wherein in said first mode of operation the signal is generated in accordance with a first signaling scheme wherein the signal is derived by multiplication of a first-type bi-phase baseband waveform and a square wave, wherein the first-type bi-phase baseband waveform has a first symbol rate SR wherein in said second mode of operation the signal is generated in accordance with a second signaling scheme wherein the signal comprises a second-type bi-phase baseband waveform having a second symbol rate SR modulation means, operably coupled between the signal generation means and the at least one antenna element, for modulating a backscatter signal transmitted at the at least one antenna element in accordance with the signal generated by the signal generation means.