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公开(公告)号：US11927668B2
公开(公告)日：2024-03-12
申请号：US16698870
申请日：2019-11-27
发明人： Daniel Hendricus Franciscus Fontijne , Amin Ansari , Bence Major , Ravi Teja Sukhavasi , Radhika Dilip Gowaikar , Xinzhou Wu , Sundar Subramanian , Michael John Hamilton
IPC分类号： G01S13/60 , G01S7/02 , G01S7/41 , G01S13/931 , G01S17/931 , G06V10/764 , G06V10/80 , G06V10/82 , G06V20/10 , G06V20/58 , G06V20/70 , G01S7/295 , G01S13/86 , G01S13/89 , G01S17/89 , G06F18/2413 , G06F18/25 , G06N3/044 , G06N3/045 , G06N3/08
CPC分类号： G01S13/931 , G01S7/022 , G01S7/417 , G01S13/60 , G01S17/931 , G06V10/764 , G06V10/803 , G06V10/82 , G06V20/10 , G06V20/58 , G06V20/70 , G01S7/2955 , G01S13/865 , G01S13/867 , G01S13/89 , G01S17/89 , G06F18/24133 , G06F18/251 , G06N3/044 , G06N3/045 , G06N3/08
摘要： Disclosed are techniques for employing deep learning to analyze radar signals. In an aspect, an on-board computer of a host vehicle receives, from a radar sensor of the vehicle, a plurality of radar frames, executes a neural network on a subset of the plurality of radar frames, and detects one or more objects in the subset of the plurality of radar frames based on execution of the neural network on the subset of the plurality of radar frames. Further, techniques for transforming polar coordinates to Cartesian coordinates in a neural network are disclosed. In an aspect, a neural network receives a plurality of radar frames in polar coordinate space, a polar-to-Cartesian transformation layer of the neural network transforms the plurality of radar frames to Cartesian coordinate space, and the neural network outputs the plurality of radar frames in the Cartesian coordinate space.
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公开(公告)号：US11899099B2
公开(公告)日：2024-02-13
申请号：US16698601
申请日：2019-11-27
发明人： Radhika Dilip Gowaikar , Ravi Teja Sukhavasi , Daniel Hendricus Franciscus Fontijne , Bence Major , Amin Ansari , Teck Yian Lim , Sundar Subramanian , Xinzhou Wu
IPC分类号： G01S13/931 , G01S7/41 , G01S13/86 , G05D1/00 , G05D1/02 , G06T7/60 , G06V20/56 , G06F18/25 , G06F18/22 , G06F18/213 , G06V10/80
CPC分类号： G01S13/931 , G01S7/417 , G01S13/867 , G05D1/0088 , G05D1/0231 , G05D1/0257 , G06F18/213 , G06F18/22 , G06F18/253 , G06T7/60 , G06V10/80 , G06V20/56 , G01S2013/9318 , G01S2013/9319 , G01S2013/9321 , G01S2013/93185 , G01S2013/93276 , G05D2201/0213 , G06T2207/10044 , G06T2207/30252
摘要： Disclosed are techniques for fusing camera and radar frames to perform object detection in one or more spatial domains. In an aspect, an on-board computer of a host vehicle receives, from a camera sensor of the host vehicle, a plurality of camera frames, receives, from a radar sensor of the host vehicle, a plurality of radar frames, performs a camera feature extraction process on a first camera frame of the plurality of camera frames to generate a first camera feature map, performs a radar feature extraction process on a first radar frame of the plurality of radar frames to generate a first radar feature map, converts the first camera feature map and/or the first radar feature map to a common spatial domain, and concatenates the first radar feature map and the first camera feature map to generate a first concatenated feature map in the common spatial domain.
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公开(公告)号：US11383727B2
公开(公告)日：2022-07-12
申请号：US16121477
申请日：2018-09-04
发明人： Urs Niesen , Jubin Jose , Xinzhou Wu
IPC分类号： B60W50/029 , B60W50/00 , B60W50/023 , G01C21/28 , B60W50/02 , B62D15/02 , B60W30/18
摘要： Methods, apparatuses, and computer-readable media are described. In one example, a method of controlling a vehicle comprises: receiving, using one or more sensors, a first set of measurements of a set of physical attributes of the vehicle in a motion; determining, based on a motion data model that defines a set of relationships among the set of physical attributes of the vehicle in the motion and based on the first set of measurements, a set of expected measurements of the set of physical attributes; determining whether to use an entirety of the first set of measurements to control an operation of the vehicle based on comparing the first set of measurements and the set of expected measurements; and responsive to determining not to use the entirety of the first set of measurements, controlling the operation of the vehicle based on a second set of measurements.
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公开(公告)号：US10938585B2
公开(公告)日：2021-03-02
申请号：US14848151
申请日：2015-09-08
摘要： Disclosed are methods, devices, systems, apparatus, servers, computer-/processor-readable media, and other implementations, including a method of estimating a range between a first wireless device and a second wireless device that includes obtaining, at the first wireless device, first information related to a first broadcast message transmitted by the first wireless device, and obtaining, at the first wireless device, second information related to a second broadcast message transmitted by the second wireless device, with the second broadcast message including at least some of the first information. The method also includes determining the range between the first wireless device and the second wireless device based, at least in part, on the first information and the second information.
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公开(公告)号：US10477328B2
公开(公告)日：2019-11-12
申请号：US15225619
申请日：2016-08-01
发明人： Feng Han , Jin Won Lee , Xinzhou Wu , Rashid Ahmed Akbar Attar
摘要： Some disclosed systems may include a microphone system having two or more microphones, an interface system and a control system. In some examples, the control system may be capable of receiving, via the interface system, audio data from two or more microphones of the microphone system, of determining a gesture location based, at least in part, on the audio data and of controlling one or more settings of the system based on the gesture location.
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6.发明授权公开(公告)号：US10440756B2
公开(公告)日：2019-10-08
申请号：US15837803
申请日：2017-12-11
发明人： Lei Zhang , Chong Li , Xinzhou Wu , Junyi Li
摘要： Methods, systems, and devices are described for techniques for downlink (DL) scheduling and uplink (UL) scheduling in a shared radio frequency (RF)spectrum band. In some aspects, a wireless communication device may receive an UL data transmission grant associated with a channel of shared RF spectrum band. The wireless communication device may perform a channel readiness procedure associated with the channel. The wireless communication device may also transmit channel readiness information based at least in part on the channel readiness procedure to a base station. The channel readiness information may be transmitted via an uplink channel of a licensed RF spectrum band different from the shared RF band. In other aspects, a base station may schedule a data transmission on one or more channels of a shared RF spectrum band. The base station may transmit a data transmission grant for the scheduled data transmission to a wireless communication device.
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公开(公告)号：US10285010B2
公开(公告)日：2019-05-07
申请号：US15708011
申请日：2017-09-18
摘要： A range between a first wireless device and a second wireless device is estimated using a first mechanism based on messages transmitted over a first communication channel. The first communication channel is associated with a first radio access technology capability of the wireless devices. One or more metrics indicative of an accuracy of the range estimates provided by the first mechanism are obtained. A second mechanism to estimate a range between the first wireless device and the second wireless device may be implemented in favor of the first mechanism when the metric fails to satisfy a criterion. The second mechanism is based on unicast messages transmitted over a second communication channel. The second communication channel is associated with a second radio access technology capability of the wireless devices and may be the same as, or different from, the first communication channel.
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公开(公告)号：US10205670B2
公开(公告)日：2019-02-12
申请号：US14485372
申请日：2014-09-12
发明人： Bo Tan , Jubin Jose , Xinzhou Wu , Junyi Li , Sanjay Shakkottai
IPC分类号： H04L12/823 , H04W4/80 , H04L29/08 , H04W40/20 , G08G1/0967 , G08G1/16 , H04W40/02 , H04W84/00 , H04W84/18
摘要： Methods, systems, and devices are described for storing and deleting received data packets over combined vehicular and wireless communications networks. In one example, an apparatus in a vehicular communication network may receive a data packet and may determine whether to store or delete the received data packet based on a ratio of distances between the data packet and its destination address as well as the data packet's source address and its destination address.
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公开(公告)号：US10129870B2
公开(公告)日：2018-11-13
申请号：US14842685
申请日：2015-09-01
发明人： Junyi Li , Assaf Touboul , Xinzhou Wu , Arthur Gubeskys
摘要： A wireless device may identify a first subband in an unlicensed radio frequency spectrum band used to communicate control traffic. The wireless device may identify a second subband in the unlicensed radio frequency spectrum band used to communicate data traffic. The first subband and the second subband may be different. The wireless device may reserve the first subband for a first duration of time for a plurality of wireless devices. The reservation may be based at least in part on an enhanced self-clear-to-send (self-CTS) transmitted over the first subband.
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公开(公告)号：US20180070889A1
公开(公告)日：2018-03-15
申请号：US15261561
申请日：2016-09-09
发明人： Jin Won Lee , Xinzhou Wu , Rashid Ahmed Akbar Attar , Feng Han
CPC分类号： A61B5/7282 , A61B5/1117 , A61B5/1122 , A61B5/6801 , A61B5/7225 , A61B5/7267 , A61B2562/0219 , G08B21/0446 , G16H20/30 , G16H40/63 , G16H40/67 , G16H50/20 , G16H50/30
摘要： Aspects of the subject matter described in this disclosure can be implemented in a fall detection device and method. One or more motion sensors can access a user's acceleration data. The acceleration data can be segmented using a segmentation algorithm to identify a potential fall event. The segmentation algorithm can determine a cumulative sum of the acceleration data, where the cumulative sum is based on acceleration values being greater than or less than an acceleration threshold value, and a potential fall event can be identified where the cumulative sum is greater than a cumulative sum threshold value. Statistical features can be extracted from the segmented acceleration data and aggregated, and a determination can be made as to whether the potential fall event is a fall event based at least in part on the statistical features.
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