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公开(公告)号：US10795012B2
公开(公告)日：2020-10-06
申请号：US15876769
申请日：2018-01-22
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Ashutosh Baheti , Thomas Finke , Reinhard-Wolfgang Jungmaier , Saverio Trotta , Raghavendran Vagarappan Ulaganathan
IPC: G01S13/50 , G01S7/41 , G01S13/56 , G01S13/42 , G01S7/10 , G06K9/00 , G01S7/288 , G01S13/536 , G01S13/522 , G01S7/292
Abstract: An embodiment method includes identifying a set of targets within a field of view of a millimeter-wave radar sensor based on radar data received by the millimeter-wave radar sensor; capturing radar data corresponding to the set of targets across a macro-Doppler frame; performing macro-Doppler processing on the macro-Doppler frame and determining whether a macro-Doppler signal is present in the macro-Doppler frame based on the macro-Doppler processing; capturing radar data corresponding to the set of targets across a micro-Doppler frame, wherein the micro-Doppler frame has a duration equal to a first plurality of macro-Doppler frames; performing micro-Doppler processing on the micro-Doppler frame and determining whether a micro-Doppler signal is present in the micro-Doppler frame based on the micro-Doppler processing; and activating at least one range bin of a plurality of range bins in response to a determination that at least one of the macro-Doppler signal or the micro-Doppler signal is present.
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公开(公告)号：US10677905B2
公开(公告)日：2020-06-09
申请号：US15716175
申请日：2017-09-26
Applicant: Infineon Technologies AG
Inventor： Ashutosh Baheti , Reinhard-Wolfgang Jungmaier , Avik Santra , Saverio Trotta , Raghavendran Vagarappan Ulaganathan
IPC: G01S13/04 , G01S13/32 , A61B5/024 , A61B5/0205 , G01S13/34 , A61B5/05 , G01S13/56 , A61B5/08 , A61B5/00
Abstract: According to an embodiment, a method for presence detection includes performing a first scanning comprising scanning a first area using a millimeter-wave radar sensor to produce a first set of radar data; identifying a first set of targets based on the first set of radar data; performing a second scanning comprising scanning portions of the first area corresponding to the first set of targets using the millimeter-wave radar sensor, and performing micro-Doppler measurements on the portions of the first area; and determining which targets of the first set of targets meet a first set of criteria based on the micro-Doppler measurements.
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公开(公告)号：US20190265345A1
公开(公告)日：2019-08-29
申请号：US16284626
申请日：2019-02-25
Applicant: Infineon Technologies AG
Inventor： Reinhard-Wolfgang Jungmaier , Ashutosh Baheti , Jagjit Singh Bal , Thomas Gmeinder , Henk Muller , Shyam Nallabolu , Dennis Noppeney , Avik Santra , Raghavendran Vagarappan Ulaganathan
Abstract: In accordance with an embodiment, an apparatus includes a millimeter wave radar sensor system configured to detect a location of a body of a person, where the detected location of the body of the person defines a direction of the person relative to the apparatus; and a microphone system configured to generate at least one audio beam as a function at least of the direction.
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公开(公告)号：US20230075303A1
公开(公告)日：2023-03-09
申请号：US17903789
申请日：2022-09-06
Applicant: Infineon Technologies AG
Inventor： Raghavendran Vagarappan Ulaganathan , Ashutosh Baheti , Reinhard-Wolfgang Jungmaier , Saverio Trotta
IPC: G01S7/40
Abstract: A method for testing a radar device including a master radar device and a slave radar device includes: moving a test target through a field of view of the radar device; measuring an angle of the test target with respect to the radar device at a plurality of positions; evaluating the reliability of the measured angles; and specifying at least one of a usable field of view of the radar device or a number of required repetitions for a reliable measurement based on the evaluating.
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公开(公告)号：US20220262016A1
公开(公告)日：2022-08-18
申请号：US17671324
申请日：2022-02-14
Applicant: Infineon Technologies AG
Inventor： Raghavendran Vagarappan Ulaganathan , Ashutosh Baheti , Reinhard-Wolfgang Jungmaier , Avik Santra , Saverio Trotta , Prachi Vaishnav
Abstract: In an embodiment, a method of tracking includes predicting a predicted state, in a global coordinate space, of an object based on a state of the object; determining in local coordinates the predicted state; determining a plurality of measurements of the object, in the local coordinates, with first and/or second radar sensors; determining a matching of the predicted state and the plurality of measurements, in the local coordinates, for a matching result; and updating the state of the object based on the matching result. The first and second sensors are arranged along perpendicular lines which intersect at the origin of the global coordinate space.
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Patent Agency Ranking
公开(公告)号：US20190317190A1
公开(公告)日：2019-10-17
申请号：US15950438
申请日：2018-04-11
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Ashutosh Baheti , Andreas Dorfner , Youn Joo Kim , Raghavendran Vagarappan Ulaganathan , Thomas Finke
Abstract: A device includes: a millimeter-wave radar sensor circuit configured to generate N virtual channels of sensed data, where N is an integer number greater than one; and a processor configured to: generate a 2D radar image of a surface in a field of view of the millimeter-wave radar sensor circuit based on sensed data from the N virtual channels of sensed data, where the 2D radar image includes azimuth and range information, generate a multi-dimensional data structure based on the 2D radar image using a transform function, compare the multi-dimensional data structure with a reference multi-dimensional data structure, and determine whether liquid is present in the field of view of the millimeter-wave radar sensor circuit based on comparing the multi-dimensional data structure with the reference multi-dimensional data structure.
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7.发明申请公开(公告)号：US20190227156A1
公开(公告)日：2019-07-25
申请号：US15876769
申请日：2018-01-22
Applicant: Infineon Technologies AG
Inventor： Avik Santra , Ashutosh Baheti , Thomas Finke , Reinhard-Wolfgang Jungmaier , Saverio Trotta , Raghavendran Vagarappan Ulaganathan
Abstract: An embodiment method includes identifying a set of targets within a field of view of a millimeter-wave radar sensor based on radar data received by the millimeter-wave radar sensor; capturing radar data corresponding to the set of targets across a macro-Doppler frame; performing macro-Doppler processing on the macro-Doppler frame and determining whether a macro-Doppler signal is present in the macro-Doppler frame based on the macro-Doppler processing; capturing radar data corresponding to the set of targets across a micro-Doppler frame, wherein the micro-Doppler frame has a duration equal to a first plurality of macro-Doppler frames; performing micro-Doppler processing on the micro-Doppler frame and determining whether a micro-Doppler signal is present in the micro-Doppler frame based on the micro-Doppler processing; and activating at least one range bin of a plurality of range bins in response to a determination that at least one of the macro-Doppler signal or the micro-Doppler signal is present.
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公开(公告)号：US20190094350A1
公开(公告)日：2019-03-28
申请号：US15716175
申请日：2017-09-26
Applicant: Infineon Technologies AG
Inventor： Ashutosh Baheti , Reinhard-Wolfgang Jungmaier , Avik Santra , Saverio Trotta , Raghavendran Vagarappan Ulaganathan
IPC: G01S13/04 , G01S13/32 , A61B5/0205
CPC classification number: G01S13/04 , A61B5/0205 , A61B5/024 , A61B5/05 , A61B5/0507 , A61B5/08 , A61B5/0816 , A61B5/7264 , A61B2562/0257 , G01S13/32 , G01S13/34 , G01S13/56
Abstract: According to an embodiment, a method for presence detection includes performing a first scanning comprising scanning a first area using a millimeter-wave radar sensor to produce a first set of radar data; identifying a first set of targets based on the first set of radar data; performing a second scanning comprising scanning portions of the first area corresponding to the first set of targets using the millimeter-wave radar sensor, and performing micro-Doppler measurements on the portions of the first area; and determining which targets of the first set of targets meet a first set of criteria based on the micro-Doppler measurements.
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公开(公告)号：US12292500B2
公开(公告)日：2025-05-06
申请号：US17843322
申请日：2022-06-17
Applicant: Infineon Technologies AG
Inventor： Raghavendran Vagarappan Ulaganathan , Andrea Heinz , Avik Santra
IPC: G01S13/89
Abstract: In an embodiment, a method includes: obtaining one or more radar measurement frames, each one of the one or more radar measurement frames including respective data samples acquired by a radar sensor monitoring a scene; for each one of the one or more radar measurement frames, determining a respective 2-D angular intensity map of the scene based on the respective radar measurement frame; and performing a people counting operation based on the one or more 2-D angular intensity maps determined for the one or more radar measurement frames to determine a people count for the scene.
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公开(公告)号：US11550046B2
公开(公告)日：2023-01-10
申请号：US16284626
申请日：2019-02-25
Applicant: Infineon Technologies AG
Inventor： Reinhard-Wolfgang Jungmaier , Ashutosh Baheti , Jagjit Singh Bal , Thomas Gmeinder , Henk Muller , Shyam Nallabolu , Dennis Noppeney , Avik Santra , Raghavendran Vagarappan Ulaganathan
IPC: G01S13/04 , G01S13/08 , G01S13/56 , G01S13/86 , H04R1/34 , H04R1/40 , H04R3/00 , H04S7/00 , G01S13/00
Abstract: In accordance with an embodiment, an apparatus includes a millimeter wave radar sensor system configured to detect a location of a body of a person, where the detected location of the body of the person defines a direction of the person relative to the apparatus; and a microphone system configured to generate at least one audio beam as a function at least of the direction.
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