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71.发明申请公开(公告)号：US20180234149A1
公开(公告)日：2018-08-16
申请号：US15434115
申请日：2017-02-16
Inventor： Yuxian Zhang , Man Wai Kwan , Eric Kong Chau Tsang
IPC: H04B7/06 , H04L5/00 , H04B7/0413
CPC classification number: H04B7/0617 , H04B7/0413 , H04B7/0626 , H04B7/0632 , H04B7/0695 , H04L5/0048
Abstract: Provided is a method of base station (BS) for channel state information (CSI) acquisition in a massive multiple input/multiple output (MIMO) communication system. The method comprises the steps at the BS of sending a set of beamformed reference signals (RSs) to a user equipment (UE) and receiving from said UE an indication of a subset of said set of beamformed RSs and CSI acquired by said UE for only said subset of said set of beamformed RSs. Also provided is a further method and a user equipment (UE) for CSI acquisition. The further method comprises the steps at the UE of receiving from the BS the set of beamformed RSs; estimating a channel of each RS comprising said set of beamformed RSs; selecting a subset of said set of beamformed RSs; acquiring CSI for only said selected subset of said set of beamformed RSs; and communicating to said BS an indication of said selected subset of said set of beamformed RSs and reporting the CSI acquired for said selected subset of said set of beamformed RSs.
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公开(公告)号：US10045237B2
公开(公告)日：2018-08-07
申请号：US14682568
申请日：2015-04-09
Inventor： Xiang Chen , Eddy Chiu , Man Wai Kwan , Kong Chau Tsang
Abstract: Systems and methods which provide white space channel identification and/or selection using high probability area determinations for a device and availability probability calculations for channels based on a probability model are described. A white space device (WSD) may utilize spectrum scanner sensing results to determine one or more course high probability area (HPA) for the WSD. The sensing results may further be analyzed to derive probability information regarding the WSD being located at the HPAs, to thereby refine the HPAs. Thereafter, the information regarding probabilities of the WSD being located at the HPAs may be utilized with information from a white space location database to determine an availability probability of one or more white space channels. One or more such white space channels may be identified and/or selected for use by the WSD.
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公开(公告)号：US10039057B1
公开(公告)日：2018-07-31
申请号：US15615402
申请日：2017-06-06
Inventor： Tak Wing Lam , Tak Fuk Wong
CPC classification number: H04W52/0229 , H04W4/02 , H04W4/023 , H04W4/185 , H04W4/20 , H04W4/80 , Y02D70/00 , Y02D70/10 , Y02D70/1262 , Y02D70/14 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/26
Abstract: The present disclosure is related to a system for managing data exchanges between Bluetooth Low Energy (BLE) devices. The system includes a plurality of BLE devices. At least one BLE device is configured as a parent node and at least one BLE device is configured as a child node. The parent node is configured to receive a BLE packet, including data reported by the child node in a payload field of the BLE packet, and to use a location function to determine a location in the payload field for inserting data to be reported from the parent node. The parent node aggregates the data to be reported from the parent node and the data reported by the child node by inserting the data from the parent node into the determined location in the payload field of the BLE packet, and then broadcasts the BLE packet with the aggregated data.
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公开(公告)号：US09912512B2
公开(公告)日：2018-03-06
申请号：US15063085
申请日：2016-03-07
Inventor： Shaohua Zhao , Wuxue Ni , Biqiang Luo , Li Li
CPC classification number: H04L27/2663 , H04L7/04 , H04L27/06 , H04L27/14 , H04L27/2331 , H04L27/2671 , H04L27/2675
Abstract: Systems and methods which provide training sequence or preamble-based synchronization with respect to non-coherent modulated signals and/or differentially coherent modulated signals are described. Embodiments provide for time synchronization using a technique for mitigating the effect of carrier frequency offset (CFO) with respect to the received signal. Embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using a constant bias induced with respect to the received signal by CFO. Additionally or alternatively, embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using phase rotation caused by CFO. The time synchronization and frequency synchronization of embodiments may be performed independently, without requiring the results of one synchronization operation for performing the other synchronization operation.
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公开(公告)号：US20170287875A1
公开(公告)日：2017-10-05
申请号：US15619532
申请日：2017-06-11
Inventor： Ziyang GAO , Xunqing SHI , Shi Wo CHOW
IPC: H01L25/065 , H01L25/00 , H01L23/31 , H01L23/498 , H01L21/56 , H01L21/48
CPC classification number: H01L25/0657 , H01L21/4853 , H01L21/4857 , H01L21/486 , H01L21/565 , H01L22/12 , H01L22/20 , H01L23/051 , H01L23/3107 , H01L23/3114 , H01L23/49811 , H01L23/49822 , H01L23/49833 , H01L24/17 , H01L24/20 , H01L25/105 , H01L25/50 , H01L2225/06548 , H01L2225/06582 , H01L2225/06589 , H01L2225/1058 , H01L2225/1088 , H01L2225/1094
Abstract: A power electronic package includes a first substrate, a second substrate oppositely disposed from the first substrate, one or more chips disposed between the substrates, and at least three spacers. The spacers control a height variation of the power electronic package and protect the chips and other electronics from experiencing excessive stress. The height of the spacers is determined based on a height of the chips, on a height of solder blocks that connect the chips to the top substrate, and on a height of solder blocks that connect the chips to the bottom substrate.
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Patent Agency Ranking
76.发明申请公开(公告)号：US20170257247A1
公开(公告)日：2017-09-07
申请号：US15063030
申请日：2016-03-07
Inventor： Shaohua Zhao , Wuxue Ni , Li Li
IPC: H04L27/26
CPC classification number: H04L27/2663 , H04L5/0048 , H04L27/12 , H04L27/18 , H04L27/2671 , H04L27/2675 , H04L27/2692 , H04L2025/03394 , H04L2027/0026
Abstract: Systems and methods which provide training sequence or preamble-based synchronization with respect to non-coherent modulated signals and/or differentially coherent modulated signals are described. Embodiments provide for time synchronization using a technique for mitigating the effect of carrier frequency offset (CFO) with respect to the received signal. Embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using a constant bias induced with respect to the received signal by CFO. Additionally or alternatively, embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using phase rotation caused by CFO. The time synchronization and frequency synchronization of embodiments may be performed independently, without requiring the results of one synchronization operation for performing the other synchronization operation.
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公开(公告)号：US09713284B2
公开(公告)日：2017-07-18
申请号：US14799594
申请日：2015-07-15
Inventor： Ziyang Gao , Ya Lv , Yat Kit Tsui
IPC: H05K7/20 , F28F3/02 , H01L23/473
CPC classification number: H05K7/20218 , F28F3/022 , H01L23/3735 , H01L23/473 , H05K7/20254 , H05K7/2039 , H05K7/20409 , H05K7/20509 , H05K7/20927
Abstract: The present invention discloses a fluid cooling assembly which facilitates turbulent flow inside the assembly so as to achieve better heat dissipating effect. The cooling assembly comprises an enclosed chamber with an inlet and an outlet for fluid to pass through; together with a heat spreader; a plurality of micropillars and a plurality of heat dissipating fins installed inside the assembly. When fluid flows through the chamber, these elements in combination are adapted to create an enhanced turbulent flow upon the fluid so as to effectively dissipate heat from said heat spreader through the fluid.
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公开(公告)号：US09703068B2
公开(公告)日：2017-07-11
申请号：US14038380
申请日：2013-09-26
Inventor： Kwok Sing Cheng , Kin Ming Fan
CPC classification number: G02B7/09 , G02B7/08 , G02B27/646
Abstract: The subject matter disclosed herein relates to an imaging module comprising an electromagnetic actuator to provide focus-related and image stabilization-related functionality.
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公开(公告)号：US09519975B2
公开(公告)日：2016-12-13
申请号：US14149839
申请日：2014-01-08
Inventor： Yan Wang
CPC classification number: G06T7/0085 , G06F3/038 , G06F3/042 , G06F3/0425 , G06T7/13 , G06T7/174
Abstract: A method of determining an edge of an object on a digital image sequence comprising the step of determining a first gradient direction profile of a first image in the digital image sequence; determining a second gradient direction profile of a second image in the digital image sequence; computing a differential profile based on the first gradient direction profile and the second gradient direction profile; and determining the edge of the object based on the differential profile wherein the differential profile registers gradient magnitudes of the second gradient direction profile and angular differences between the first gradient direction profile and the second gradient direction profile. A system thereof is also disclosed.
Abstract translation: 一种确定数字图像序列上的对象边缘的方法，包括确定数字图像序列中的第一图像的第一梯度方向轮廓的步骤; 确定所述数字图像序列中的第二图像的第二梯度方向轮廓; 基于所述第一梯度方向轮廓和所述第二梯度方向轮廓来计算差分轮廓; 以及基于所述差分轮廓来确定所述对象的边缘，其中所述差分轮廓记录所述第二梯度方向轮廓的梯度大小和所述第一梯度方向轮廓与所述第二梯度方向轮廓之间的角度差。 还公开了其系统。
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80.发明授权Method and apparatus for facial detection using regional similarity distribution analysis 有权使用区域相似度分布分析进行面部检测的方法和装置公开(公告)号：US09436892B2
公开(公告)日：2016-09-06
申请号：US14268149
申请日：2014-05-02
CPC classification number: G06K9/6201 , G06K9/00288 , G06K9/4642 , G06K9/469 , G06K9/52
Abstract: A method and apparatus for facial recognition by a computing device using an adaptive search window and regional similarity distribution analysis are disclosed herein.
Abstract translation: 本文公开了一种使用自适应搜索窗口和区域相似度分布分析的计算设备进行面部识别的方法和装置。
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