WIRELESS WAKE-UP SYSTEM AND OPERATION METHOD THEREOF
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United States of America Patent
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Issued Date -
Oct 27, 2011
app pub date -
Dec 15, 2010
filing date -
Apr 23, 2010
priority date (Note) -
Abandoned
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Abstract
A wireless wake-up system and an operation method thereof are provided to optimize power consumption when wireless data is received. The wireless wake-up system activates a wake-up detection module and then compares a wireless input signal received through an antenna with a pre-stored reference value. If the wireless input signal is equal to the reference value, the wireless wake-up system determines that the input signal is a wake-up signal with a low bit rate, and then generates a wake-up command corresponding to the wake-up signal. Also, the wireless wake-up system activates a selected module kept in an inactive state by sending the wake-up command to the selected module. The activated module may be a microcontroller unit (MCU). When the MCU is activated, the wireless wake-up system may inactivate the wake-up detection module.
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