RFID systems and methods of operating the same in power-saving modes
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United States of America Patent
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Issued Date -
Mar 13, 2008
app pub date -
Aug 11, 2006
filing date -
Aug 11, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of operating an RFID system and an RFID system in a power-saving mode are disclosed. In one embodiment, the system comprises at least one reader and at least one tag. The at least one reader may transmit a wake-up signal to the at least one tag when turning on, and the at least one tag stays alternatively in a sniff mode and a sleep mode at an alternative period before receiving the wake-up signal. The method may comprise modulating the wake-up signal by using N time markers.
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