POWER SAVING ACTIVE TAG AND READER INCLUDING THE CAPABILITY OF ORDINARY WAKE UP AND OF TRANSMISSION TO DISTANCE

摘要

The present invention relates to a Radio Frequency (RF) tag and a reader. The present invention provides an RF tag including a processor (150), memory (160), and an RF signal transceiver (180). The RF tag includes a detector (120) is operated such that, when an external reader transmits a signal, obtained by amplitude-modulating an LF signal, including a wake-up signal, into a signal in a UHF band, the detection unit detects the amplitude-modulated signal, eliminates a UHF band component from the amplitude-modulated signal, and extracts the LF signal from the amplitude-modulated signal. A wake-up unit (140) determines a correlation between a signal pattern, extracted by secondarily detecting the LF signal, and a preset wake-up pattern, and waking up any one of the processor, the RF signal transceiver and the memory if the two patterns are determined to be identical to each other.