RADIO FREQUENCY IDENTIFICATION DEVICE HAVING NONVOLATILE FERROELECTRIC MEMORY
First Claim
1. An RFID device having a nonvolatile ferroelectric memory, receiving a radio frequency signal, and generating a power voltage for driving the RFID device, the RFID device comprising:
- a power-on reset unit configured to sense the power voltage in order to output a power sensing signal;
a radio frequency signal sensing unit configured to sense a voltage level of a detecting signal corresponding to the radio frequency signal, and outputting a radio frequency sensing signal according to the sensed voltage level; and
a power-on reset mixer configured to receive the power sensing signal and the radio frequency sensing signal, and outputting a power-on reset signal according to the voltage levels of the power sensing signal and the radio frequency sensing signal.
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Accused Products
Abstract
A RFID device having a nonvolatile ferroelectric memory includes an analog block. A power-on reset unit configured to sense a power voltage and output a power sensing signal is included in the analog block. A radio frequency signal sensing unit is configured to sense the level of a detecting signal corresponding to a radio frequency signal received by the antenna of the RFID device and outputs a radio frequency sensing signal. A power-on reset mixer is configured to synthesize the power sensing signal and the radio frequency sensing signal and outputs a power-on reset signal according to the voltage levels of the power sensing signal and the radio frequency sensing signal.
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Citations
23 Claims
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1. An RFID device having a nonvolatile ferroelectric memory, receiving a radio frequency signal, and generating a power voltage for driving the RFID device, the RFID device comprising:
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a power-on reset unit configured to sense the power voltage in order to output a power sensing signal; a radio frequency signal sensing unit configured to sense a voltage level of a detecting signal corresponding to the radio frequency signal, and outputting a radio frequency sensing signal according to the sensed voltage level; and a power-on reset mixer configured to receive the power sensing signal and the radio frequency sensing signal, and outputting a power-on reset signal according to the voltage levels of the power sensing signal and the radio frequency sensing signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification