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公开(公告)号：US20230136937A1
公开(公告)日：2023-05-04
申请号：US17678492
申请日：2022-02-23
申请人： Wistron Corporation
发明人： Kai-Jen Cheng , Yin-Yu Chen
摘要： A data pre-processing method is provided. By using an energy distribution parameter set obtained through beamforming scanning, a signal-to-noise ratio of a signal can be improved and a detection range region can be automatically generated, thereby improving an object tracking effect. An exercise vital sign detection radar is also provided.
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2.发明授权公开(公告)号：US11639985B2
公开(公告)日：2023-05-02
申请号：US16919129
申请日：2020-07-02
发明人： Asaf Tzadok
摘要： Motion-related 3D feature extraction by receiving a set of sequential radar signal data frames associated with a subject, determining radar signal amplitude and phase for each data frame, determining radar signal phase changes between sequential data frames, and extracting, by a trained machine learning model, one or more three-dimensional features from the sequential radar signal data frames according to the radar signal amplitude and the radar signal phase changes between sequential data frames.
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公开(公告)号：US20230128484A1
公开(公告)日：2023-04-27
申请号：US17805120
申请日：2022-06-02
摘要： Aspects of the invention provide improvements to analyze data collected by a radar system. One of the systems includes a phased array module configured to transmit a sequence of pulses to an environment according to a pre-determined pattern. A data analysis system constructs an image based on returned signals from a single point received by the phased array module, and determines one or more characteristics of a target object in the environment based on the image constructed from the returned signals from the single point.
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公开(公告)号：US20230127343A1
公开(公告)日：2023-04-27
申请号：US17350926
申请日：2021-06-17
申请人： The Government of the United States of America, as represented by the Secretary of Homeland Security
摘要： Described herein are examples of evaluating electromagnetic energy reflection data of security scans. In embodiments, a method to evaluate electromagnetic energy reflection data determines whether electronic information of a security scan contains an anomaly, and identifies an anomaly location in the electronic information corresponding to the anomaly. The method determines a subset of the electronic information corresponding to the anomaly location, determines anomaly attributes using the subset of the electronic information, and evaluates the anomaly attributes using a database of reference items by comparing anomaly attributes to respective reference characteristics of reference items or identity information. When a comparison meets the respective match criterion for the given reference item, the method assigns to the anomaly the respective identifier as an anomaly identifier.
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公开(公告)号：US11630195B2
公开(公告)日：2023-04-18
申请号：US16230623
申请日：2018-12-21
摘要： An estimation method is provided which includes: calculating a plurality of complex transfer functions, based on reception signals respectively received by N reception antenna elements during a predetermined period, the complex transfer functions each representing propagation characteristics between a transmission antenna element and the N reception antenna elements; extracting a variation component corresponding to each of the N reception antenna elements, from the calculated complex transfer functions, the variation component being caused by a living body; calculating a correlation matrix based on the variation component corresponding to each of the N reception antenna elements; calculating eigenvalues of the correlation matrix calculated in the calculating of the correlation matrix; and estimating the number of living bodies in a predetermined method, using the eigenvalues calculated in the calculating of the eigenvalues.
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公开(公告)号：US11618380B2
公开(公告)日：2023-04-04
申请号：US16621429
申请日：2017-06-12
发明人： Gladys Acervo , Koji Takeuchi , Junya Fukuta
IPC分类号： B60Q9/00 , G01S7/41 , G01S13/931 , G08G1/16 , B60R19/48 , B60R21/0134
摘要： A rear pre-crash system, RPCS, of a subject vehicle comprising a judgement logic adapted to trigger an RPCS warning signal in response to a detected radar signal reflected by a target vehicle approaching the subject vehicle from behind, wherein said judgement logic is configured to modify the triggering of the RPCS warning signal in detected specific traffic scenarios.
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公开(公告)号：US20230102619A1
公开(公告)日：2023-03-30
申请号：US17784266
申请日：2020-12-10
申请人： ASSA ABLOY AB
发明人： Kenneth PERNYER , Gustav RYD , Matthaios STYLIANIDIS , Anders SAHLSTRÖM , Tanzia Haque TANZI , Nieves CRASTO
摘要： According to a first aspect, it is provided a method for processing an input media feed for monitoring a person. The method is performed by a media processing device comprising a media capturing device. The method comprises the steps of: obtaining an input media feed using the media capturing device; providing the input media feed to a local artificial, AI, intelligence engine, to extract at least one feature of the input media feed; and transmitting intermediate results comprising the extracted at least one feature to train a central AI model, while refraining from transmitting the input media feed. The local AI engine forms part of the media processing device. The intermediate results comprise a label of the extracted at least one feature. The label is obtained from an end result of another local AI engine.
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公开(公告)号：US20230096861A1
公开(公告)日：2023-03-30
申请号：US17948262
申请日：2022-09-20
发明人： Markus Bichl , Mayeul Jeannin
摘要： A circuit includes a signal processing unit to generate a radar map represented by an array with a first index and a second index, and a peak detection unit to identify potential targets in the radar map. Within the peak detection unit, a first peak detection sub-unit scans the radar map along the first index and stores a first detection bitmap that identifies peaks as a function of the first index, and a second peak detection sub-unit scans the radar map along the second index and outputs a second detection bitmap that identifies peaks as a function of the second index. The first detection bitmap and the second detection bitmap identify the peaks using a single bit. A hardware accelerator processes individual bits of the first detection bitmap and of the second detection bitmap.
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公开(公告)号：US11615627B2
公开(公告)日：2023-03-28
申请号：US16597958
申请日：2019-10-10
发明人： Noriyoshi Yamashina , Masanori Mori , Koji Iida , Tomohiro Akiyama , Shinichi Tateiwa , Takayuki Moritani , Hiroyuki Ueda , Hideaki Tamazumi , Junki Tamaru , Yoshihiro Yamamoto
摘要： There are provided an object recognition apparatus that raises the recognition accuracy for a surrounding object and a vehicle control apparatus, and an object recognition method and a vehicle control method. An object recognition apparatus receives object data, which is a state value of the object, from a first sensor for detecting a surrounding object; compares estimation data obtained through estimation of a state value of the object, based on recognition data calculated in a past period, with the object data, and determines whether or not the object data is data in a low-resolution state; then, in accordance with the determination result, calculates the state value of the object by use of object data and estimation data and then generates the state value as recognition data, so that the recognition accuracy for an object is raised.
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公开(公告)号：US20230089734A1
公开(公告)日：2023-03-23
申请号：US17480939
申请日：2021-09-21
摘要： Systems and methods are provided for tracking a passive controller system using an active sensor system within a mixed-reality environment. The passive controller system includes a body configured to be held in a hand of a user, as well as a plurality of retroreflectors that collectively provides at least 180 degrees of reflecting surface for reflecting a radar signal in at least 180 degrees of spherical range when the passive controller system is positioned within a predetermined distance from a source of the radar signal and with an orientation that is within the at least 180 degrees of spherical range relative to the source of the radar signal. Signals transmitted to the passive controller and reflected back from the passive controller are used to calculate the position and orientation of the passive controller system relative to the active sensor system.
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