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公开(公告)号：US10677768B2
公开(公告)日：2020-06-09
申请号：US15663711
申请日：2017-07-29
Applicant: Infineon Technologies AG
Inventor： Prashanth Makaram , Abidin Guclu Onaran
Abstract: A method of sensing includes obtaining first sensor data points by a sensor, obtaining first reference data points, and determining a correlation between the first sensor data points and the first reference data points. The method of sensing further includes measuring second sensor data points by the sensor, obtaining second reference data points, and adjusting the second sensor data points using the correlation and the second reference data points to obtain corrected sensor data points. The method of sensing also includes determining sensed values from the corrected sensor data points and storing the sensed values.
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公开(公告)号：US20190145929A1
公开(公告)日：2019-05-16
申请号：US15813687
申请日：2017-11-15
Applicant: Infineon Technologies AG
Inventor： Cecilia Carbonelli , Prashanth Makaram
IPC: G01N27/49 , G01N27/407 , G01N33/00
Abstract: A method of gas sensing includes obtaining a first signal by a gas sensor, generating one or more second signals according to the first signal, and calculating a first weight value corresponding to the first signal. The first signal indicates a response of the gas sensor to a concentration of a target gas at the gas sensor. The method of gas sensing further includes calculating one or more second weight values corresponding to each of the one or more second signals and calculating an estimated concentration of the target gas at the gas sensor according to the first weight value and the one or more second weight values.
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公开(公告)号：US20220170898A1
公开(公告)日：2022-06-02
申请号：US17651717
申请日：2022-02-18
Applicant: Infineon Technologies AG
Inventor： Prashanth Makaram , Abidin Güçlü Onaran
IPC: G01N33/00
Abstract: The present disclosure relates to a sensor device including a gas sensor disposed on a first substrate, a heating element disposed within the first substrate so that the gas sensor overlaps the heating element, a processor operatively coupled to the gas sensor and the heating element, and a memory storing a program to be executed by the processor. The gas sensor is configured to measure first sensor data points and second sensor data points. The program includes instructions for performing the following steps in real-time: recording first resistance values and second resistance values of the heating element; adjusting the second sensor data points using the first sensor data points, the first resistance values, and the second resistance values to obtain corrected sensor data points; and determining sensed values from the corrected sensor data points.
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公开(公告)号：US11035825B2
公开(公告)日：2021-06-15
申请号：US15813687
申请日：2017-11-15
Applicant: Infineon Technologies AG
Inventor： Cecilia Carbonelli , Prashanth Makaram
IPC: G01N27/49 , G01N33/00 , G01N27/407 , G01N27/12
Abstract: A method of gas sensing includes obtaining a first signal by a gas sensor, generating one or more second signals according to the first signal, and calculating a first weight value corresponding to the first signal. The first signal indicates a response of the gas sensor to a concentration of a target gas at the gas sensor. The method of gas sensing further includes calculating one or more second weight values corresponding to each of the one or more second signals and calculating an estimated concentration of the target gas at the gas sensor according to the first weight value and the one or more second weight values.
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公开(公告)号：US20200319153A1
公开(公告)日：2020-10-08
申请号：US16852035
申请日：2020-04-17
Applicant: Infineon Technologies AG
Inventor： Prashanth Makaram , Abidin Güçlü Onaran
IPC: G01N33/00
Abstract: A sensor device includes a gas sensor disposed on a first substrate, a heating element disposed within the first substrate, a processor operatively coupled to the gas sensor and the heating element, and a memory storing a program to be executed by the processor. The gas sensor is configured to measure first sensor data points and second sensor data points. The gas sensor overlaps the heating element. The program includes instructions for performing the following steps in real-time: recording first resistance values and second resistance values of the heating element; adjusting the second sensor data points using the first sensor data points, the first resistance values, and the second resistance values to obtain corrected sensor data points; and determining sensed values from the corrected sensor data points.
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Patent Agency Ranking
公开(公告)号：US20190033274A1
公开(公告)日：2019-01-31
申请号：US15663711
申请日：2017-07-29
Applicant: Infineon Technologies AG
Inventor： Prashanth Makaram , Abidin Guclu Onaran
IPC: G01N33/00
Abstract: A method of sensing includes obtaining first sensor data points by a sensor, obtaining first reference data points, and determining a correlation between the first sensor data points and the first reference data points. The method of sensing further includes measuring second sensor data points by the sensor, obtaining second reference data points, and adjusting the second sensor data points using the correlation and the second reference data points to obtain corrected sensor data points. The method of sensing also includes determining sensed values from the corrected sensor data points and storing the sensed values.
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公开(公告)号：US11536678B2
公开(公告)日：2022-12-27
申请号：US17144948
申请日：2021-01-08
Applicant: Infineon Technologies AG
Inventor： Prashanth Makaram , Cecilia Carbonelli , Caterina Travan
Abstract: A gas sensing device includes gas sensors for generating signal samples corresponding to a concentration of a gas; a heat source for heating the gas sensors according to a first temperature profile during recovery phases and according to a second temperature profile during sense phases, a preprocessing processor for preprocessing the received signal samples; a feature extraction processor for extracting feature values from the preprocessed signal samples; a humidity processor for estimating a humidity value of the mixture of gases, including a first trained model based algorithm processor, and wherein the humidity value is based on an output of the first algorithm processor; a gas concentration processor for creating sensing results, wherein the gas concentration processor comprises a second trained model based algorithm processor, wherein the sensing results are based on output values of the second algorithm processor, and wherein the sensing results depend on the humidity value.
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公开(公告)号：US20210285907A1
公开(公告)日：2021-09-16
申请号：US17144948
申请日：2021-01-08
Applicant: Infineon Technologies AG
Inventor： Prashanth Makaram , Cecilia Carbonelli , Caterina Travan
Abstract: A gas sensing device includes gas sensors for generating signal samples corresponding to a concentration of a gas; a heat source for heating the gas sensors according to a first temperature profile during recovery phases and according to a second temperature profile during sense phases, a preprocessing processor for preprocessing the received signal samples; a feature extraction processor for extracting feature values from the preprocessed signal samples; a humidity processor for estimating a humidity value of the mixture of gases, including a first trained model based algorithm processor, and wherein the humidity value is based on an output of the first algorithm processor; a gas concentration processor for creating sensing results, wherein the gas concentration processor comprises a second trained model based algorithm processor, wherein the sensing results are based on output values of the second algorithm processor, and wherein the sensing results depend on the humidity value.
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公开(公告)号：US20210262981A1
公开(公告)日：2021-08-26
申请号：US17316174
申请日：2021-05-10
Applicant: Infineon Technologies AG
Inventor： Cecilia Carbonelli , Prashanth Makaram
IPC: G01N27/49 , G01N33/00 , G01N27/407 , G01N27/12
Abstract: A method of gas sensing performed by a processor electrically coupled to a gas sensor includes obtaining, by the gas sensor, a first electrical signal indicating a response of the gas sensor to a concentration of a target gas at the gas sensor, generating one or more second electrical signals according to the first electrical signal, determining a first condition in which the concentration at the gas sensor is increasing using the first electrical signal and the one or more electrical second signals, determining a second condition occurring after the first condition in which the concentration at the gas sensor is substantially constant using the first electrical signal and the one or more second electrical signals, and calculating a concentration value of the target gas according to the first electrical signal and the one or more second electrical signals. The calculating is performed while the concentration is substantially constant.
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公开(公告)号：US11656210B2
公开(公告)日：2023-05-23
申请号：US17651717
申请日：2022-02-18
Applicant: Infineon Technologies AG
Inventor： Prashanth Makaram , Abidin Güçlü Onaran
CPC classification number: G01N33/0008 , G01N27/04 , G01N27/12 , G01N27/16 , G01N33/0006 , G01N2033/0068 , Y10S435/807
Abstract: The present disclosure relates to a sensor device including a gas sensor disposed on a first substrate, a heating element disposed within the first substrate so that the gas sensor overlaps the heating element, a processor operatively coupled to the gas sensor and the heating element, and a memory storing a program to be executed by the processor. The gas sensor is configured to measure first sensor data points and second sensor data points. The program includes instructions for performing the following steps in real-time: recording first resistance values and second resistance values of the heating element; adjusting the second sensor data points using the first sensor data points, the first resistance values, and the second resistance values to obtain corrected sensor data points; and determining sensed values from the corrected sensor data points.
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