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公开(公告)号：US10914618B2
公开(公告)日：2021-02-09
申请号：US15851609
申请日：2017-12-21
Applicant: Industrial Technology Research Institute
Inventor： Sih-Han Li , Chih-Sheng Lin , Ya-Wen Yang , Kuan-Wei Chen , Shyh-Shyuan Sheu
Abstract: A readout circuit for a sensor and a readout method thereof are provided. The readout circuit includes a reference circuit, a compensated circuit, and a signal processing circuit. The reference circuit provides a direct current (DC) signal. The compensated circuit is coupled to the reference circuit. The compensated circuit obtains an analog sensing signal of the sensor, obtains the DC signal from the reference circuit, and provides a compensated signal according to the analog sensing signal and the DC signal. The signal processing circuit is coupled to the compensated circuit. The signal processing circuit processes the compensated signal to convert the compensated signal into a digital sensing signal. The compensated circuit subtracts the DC signal from the analog sensing signal to provide the compensated signal.
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公开(公告)号：US20180136010A1
公开(公告)日：2018-05-17
申请号：US15607389
申请日：2017-05-26
Applicant: Industrial Technology Research Institute
Inventor： Sih-Han Li , Shyh-Shyuan Sheu , Ya-Wen Yang , Chih-Ping Cheng , Chih-Sheng Lin
CPC classification number: G01D3/022 , G01B2210/60 , G01D18/008 , H03K17/30
Abstract: A sensor interface circuit and sensor output adjusting method are provided. The sensor interface circuit includes a processor and a gain control circuit. The processor obtains information of a linear region of a sensor to set a configuration corresponding to the sensor. The gain control circuit is coupled to the processor, performs a return-to-zero operation for a maximum electronic value and a minimum electronic value corresponding to the linear region and performs a full-scale operation for a slope of the linear region according to the maximum input range of an analog-to-digital converter which is a subsequent-stage circuit of the sensor interface circuit.
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公开(公告)号：US20190154473A1
公开(公告)日：2019-05-23
申请号：US15851609
申请日：2017-12-21
Applicant: Industrial Technology Research Institute
Inventor： Sih-Han Li , Chih-Sheng Lin , Ya-Wen Yang , Kuan-Wei Chen , Shyh-Shyuan Sheu
IPC: G01D18/00
Abstract: A readout circuit for a sensor and a readout method thereof are provided. The readout circuit includes a reference circuit, a compensated circuit, and a signal processing circuit. The reference circuit provides a direct current (DC) signal. The compensated circuit is coupled to the reference circuit. The compensated circuit obtains an analog sensing signal of the sensor, obtains the DC signal from the reference circuit, and provides a compensated signal according to the analog sensing signal and the DC signal. The signal processing circuit is coupled to the compensated circuit. The signal processing circuit processes the compensated signal to convert the compensated signal into a digital sensing signal. The compensated circuit subtracts the DC signal from the analog sensing signal to provide the compensated signal.
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公开(公告)号：US10101175B2
公开(公告)日：2018-10-16
申请号：US15607389
申请日：2017-05-26
Applicant: Industrial Technology Research Institute
Inventor： Sih-Han Li , Shyh-Shyuan Sheu , Ya-Wen Yang , Chih-Ping Cheng , Chih-Sheng Lin
Abstract: A sensor interface circuit and sensor output adjusting method are provided. The sensor interface circuit includes a processor and a gain control circuit. The processor obtains information of a linear region of a sensor to set a configuration corresponding to the sensor. The gain control circuit is coupled to the processor, performs a return-to-zero operation for a maximum electronic value and a minimum electronic value corresponding to the linear region and performs a full-scale operation for a slope of the linear region according to the maximum input range of an analog-to-digital converter which is a subsequent-stage circuit of the sensor interface circuit.
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