Bluetooth smart signal receiving method and device using improved automatic gain control
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United States of America Patent
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Nov 28, 2017
Grant Date -
Jul 6, 2017
app pub date -
Dec 23, 2016
filing date -
Dec 30, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed herein are a Bluetooth signal receiving device and method. The Bluetooth signal receiving device includes an energy detector circuit, a radio frequency (RF) power detector circuit, an analog-digital converter circuit, and an automatic gain control circuit. The energy detector circuit detects a significant signal, having energy higher than background noise by a threshold value or more, from a received signal. The RF power detector circuit detects the magnitude of the received signal. The analog-digital converter circuit converts the analog value of the received signal into a digital value, and outputs the digital value. When the significant signal is detected, the automatic gain control circuit determines any one of predetermined coarse gain intervals to be a first coarse gain interval of the received signal by taking into account the magnitude of the received signal detected by the RF power detection circuit.
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