SIGNAL DETECTION CIRCUIT
卷宗概要
发明人
Shoou-Hann HUANG
IPC 分类
CPC 分类
A signal detection circuit is provided. The signal detection circuit includes a first switch, a second switch, an attenuator, a power detector, and a comparator. The first switch receives a test signal and a control signal, and determines whether to output the test signal through a first connection port or a second connection port based on the control signal. The second switch receives an attenuated signal or the test signal output through the second connection port based on the control signal. The attenuator receives the test signal and attenuates it for generating the attenuated signal. The power detector receives the attenuated signal or the test signal output through the second connection port, and outputs an analog signal corresponding to a power of the attenuated signal or the test signal output through the second connection port. The comparator receives the analog signal and outputs the control signal.
原文（中文）
A signal detection circuit is provided. The signal detection circuit includes a first switch, a second switch, an attenuator, a power detector, and a comparator. The first switch receives a test signal and a control signal, and determines whether to output the test signal through a first connection port or a second connection port based on the control signal. The second switch receives an attenuated signal or the test signal output through the second connection port based on the control signal. The attenuator receives the test signal and attenuates it for generating the attenuated signal. The power detector receives the attenuated signal or the test signal output through the second connection port, and outputs an analog signal corresponding to a power of the attenuated signal or the test signal output through the second connection port. The comparator receives the analog signal and outputs the control signal.