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321.发明申请公开(公告)号：US20180227927A1
公开(公告)日：2018-08-09
申请号：US15809840
申请日：2017-11-10
Inventor： Gang SUN , Yueyue DAI , Du XU , Dan LIAO , Hongfang YU
CPC classification number: H04W72/085 , H04W24/10 , H04W36/30 , H04W48/20 , H04W72/0406 , H04W72/082
Abstract: The present invention provides a method for associating a user with a base station based on backhaul capacity in heterogeneous cellular network. First, an available base station set is obtained through the SINRs, and the downlink data rate between the new user and each base station in the available base station set is calculated according to the SINR between them; Then, the usable link capacity factor of each base station is calculated based on the used link capacity and the backhaul capacity; Finally, the optimal base station is selected for the new user i under a constraint which is constructed by the bandwidth of the new user and the usable link capacity factor. The backhaul capacity of each base station is taken into account in selecting the optimal base station to associate with for the new user, thus the real time of user association and the overall performance of heterogeneous cellular network can be guaranteed.
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公开(公告)号：US20180195907A1
公开(公告)日：2018-07-12
申请号：US15865297
申请日：2018-01-09
Inventor： Chao WANG , Jun HU , Fei WANG , Zezhan ZHANG , Jing JIANG , Jie XIONG , Yueming WANG , Tiezhong MA , Dong YAN , Xueke GOU , Ting ZHOU , Yi NIU , Pei HUANG
Abstract: A device for measuring surface-temperature of a turbine blade, the device including a probe having a front-end mirror for receiving infrared radiation of a surface on the blade, a collimation lens for refracted the infrared radiation, a PD detector to receive the infrared radiation, and a focal-length servo; and a radial-scanning servo connected to the probe. The front-end mirror, the collimation lens, and PD detector are disposed along the optical axis of the collimation lens. The focal-length servo is adapted to move the collimation lens along the optical axis of the collimation lens. The radial-scanning servo is adapted to move the probe along the optical axis of the collimation lens. The device of the invention is capable of accurately targeting a particular point on the blade having an irregular shape for temperature measurement to accurately detect the temperature distribution on the surface of the blade.
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公开(公告)号：US20180164843A1
公开(公告)日：2018-06-14
申请号：US15834903
申请日：2017-12-07
Inventor： Ping LUO , Shuangjie QIU , Kangle WANG , Zelang LIU , Long HUANG
IPC: G05F1/56 , H03K17/0416 , H03K17/041 , H03K17/56
CPC classification number: G05F1/56 , G05F1/461 , G05F1/462 , G05F1/563 , H03K17/04106 , H03K17/04163 , H03K17/56
Abstract: The present invention relates to a linear regulator with real-time frequency compensation function, which belongs to the technical field of analog integrated circuits. The part of frequency compensation of the present invention includes the dual-frequency compensation networks and compensation transfer switcher, and the pulse delay circuit. The dual-frequency compensation networks and compensation transfer switcher provide the corresponding frequency compensation for linear regulator under two different capacitive loads. The pulse delay circuit generates a set of signals which have a delay related to the switch-pulse signals to control the access of the compensation transfer switcher and capacitive load. The advantages of the present invention are that the circuit structure is simple, without complex feedback control circuits, the excessive power dissipation is extremely low, and it is applied to such special use of linear regulator with switched capacitive load that it can option the loop frequency compensation in real-time to ensure the linear regulator has the optimal stability and load transient response.
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324.发明申请公开(公告)号：US20180156642A1
公开(公告)日：2018-06-07
申请号：US15874672
申请日：2018-01-18
Inventor： Zinan Wang , Ji Xiong , Lianlian Xie , Yunjiang Rao
Abstract: A method of improving measurement speed of distributed optical fiber sensors by adopting orthogonal signals and the system thereof is disclosed, which is related to the optical fiber sensor field and solves the problems that conventional technology will increasing the bandwidth of the received signal, reducing the signal-to-noise ratio of the received signal or distortion the spatial resolution of the system. The method comprises steps of generating N periodic orthogonal optical pulse sequence; injecting the N periodic orthogonal optical pulse sequence into the optical fiber under test(5); collecting the scattered light signal; demodulating the scattered light signal with the local oscillating light and then converting into digital signals; extracting the scatter information of the orthogonal optical pulses from the collected digital signals; and arranging the scattered information in order of precedence of the infusion. The measurement speed of the distributed optical fiber sensors is improved by N−1 times.
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公开(公告)号：US09985986B2
公开(公告)日：2018-05-29
申请号：US15306094
申请日：2015-06-26
Inventor： Hong Wen , Jie Tang , Da Xiang , Huanhuan Song
IPC: H04L29/06 , H04B7/06 , H04B7/0456
CPC classification number: H04L63/1475 , H04B7/0456 , H04B7/0617 , H04L1/06 , H04L9/0875 , H04L63/0428 , H04W12/12
Abstract: The present invention discloses an unconditional secure communication method based on beam-forming and security code, which comprises the following steps of: Legitimate users send to the signal pie-encoded and modulated, meanwhile eavesdropper receives signals and calculates the bit error rate; computing security coding parameters, legitimate received users send pilot sequence, and legitimate sending users estimate legitimate channel, and extract information on legal channel coding and modulating signal was SVD pre-coding and sending; the signal was decoded, that will be judgment and demodulation then the signal after decoding do security code is transmitted to message or tapping, due to lack of legal channel information, eavesdropper cannot lift pre-coding processing of the received signal with the high bit error rate. This method can establish advantages channel of the wiretap model channel and to ensure that legitimate users can receive signals at the lower bit error rate.
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Patent Agency Ranking
公开(公告)号：US20180026129A1
公开(公告)日：2018-01-25
申请号：US15602122
申请日：2017-05-23
Inventor： Min REN , Chi XIE , Jiaju LI , Ziqi ZHONG , Zehong LI , Jinping ZHANG , Wei GAO , Bo ZHANG
IPC: H01L29/78 , H01L21/306 , H01L29/40 , H01L29/06 , H01L29/10 , H01L29/417
CPC classification number: H01L29/7811 , H01L21/30604 , H01L29/0611 , H01L29/0638 , H01L29/0649 , H01L29/0661 , H01L29/0684 , H01L29/1079 , H01L29/1095 , H01L29/405 , H01L29/407 , H01L29/41741
Abstract: Edge termination structures for power semiconductor devices (or power devices) are disclosed. The purpose of this invention is to reduce the difficulty of deep trench etching and dielectric filling by adopting an inverted trapezoidal trench. In order to save the area of edge termination and get a high blocking voltage on condition that the angle between the sidewall of the trench and horizontal is large, fixed charges are introduced at a particular location in the trench. Due to the Coulomb interaction between the ionized impurity in the drift region and the fixed charges, the depletion region of the terminal PN junction can extend fully, which relieves the concentration of electric field there. Therefore, the edge termination can exhibit a high breakdown voltage near to that of the parallel plane junction with a smaller area and the reduced technical difficulty of deep trench etching and dielectric filling.
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公开(公告)号：US20170337242A1
公开(公告)日：2017-11-23
申请号：US15669479
申请日：2017-08-04
CPC classification number: G06F17/30442 , G06F17/30283 , G06F17/30377 , H04L29/08 , H04L67/12 , H04L67/303 , H04W4/70 , H04W8/22
Abstract: The present invention provides an M2M data processing method. The method includes: receiving a registration request sent by an M2M device; obtaining a filled capability model according to a capability model and capability information of the M2M device after authentication on the registration request succeeds, where the capability model includes three types of capabilities: a communication capability, a control capability, and a measurement capability, each capability is divided into multiple subentries, and the filled capability model describes at least one subentry corresponding to three types of capabilities of the M2M device; updating an overall capability model according to the filled capability model, where capability information of all registered M2M devices managed by an M2M service platform is recorded in the overall capability model in a type division manner of the capability model.
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公开(公告)号：US20170308428A1
公开(公告)日：2017-10-26
申请号：US15644588
申请日：2017-07-07
Inventor： Yang Xu , Yarui Wang , Yan Li
Abstract: The present invention provides a response message processing method, apparatus, and system, and relates to the communications field. The method includes: sending, according to a device identifier sent by a request device, a query request to a destination device corresponding to the device identifier, so that the destination device returns a response message according to the query request; generating substitution data when an error occurs in the response message, where the substitution data is associated with resource data requested by the query request and is used to substitute for the resource data requested by the query request; and sending response substitution information to the request device, where the response substitution information includes the substitution data and the device identifier.
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329.发明申请公开(公告)号：US20170302331A1
公开(公告)日：2017-10-19
申请号：US15487457
申请日：2017-04-14
Inventor： Xuesong TAN , Chao ZHOU , Jie CHEN
CPC classification number: H04B1/713 , H04W72/0446
Abstract: A method for generating a distributed channel hopping system in cognitive radio networks. The method includes: 1) providing a symmetric asynchronous CH system comprising n periodic CH sequences such that each period of a CH sequence comprises exactly L frames and each frame comprises n timeslots; 2) labelling the n periodic CH sequences in the constructed CH system; 3) hopping, by the CH sequence i, to the channel (lM+j mod N) in each timeslot tt,j,d ∈ Uij of the frame l; and 4) hopping, by the CH sequence i, to an arbitrary channel h∉ {0, 1, . . . , N−1} in each timeslot t∉ Zn\RoT(U, i) of the frame l.
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330.发明申请公开(公告)号：US20170294796A1
公开(公告)日：2017-10-12
申请号：US15387813
申请日：2016-12-22
Inventor： Zaiping NIE , Yuan YANG , Xianzheng ZONG
CPC classification number: H02J7/025 , A61N1/3787 , H02J50/23 , H02J50/27 , H02J50/40
Abstract: Embodiments provide focused wireless charging method and apparatus based on radio frequency receiving and phase compensation retransmission. The method is based on the reciprocity principle, making each charging signal transmitted by the external charging system could stack in-phase when arriving at the embedded rechargeable battery, realizing wireless near field focusing in any given area in an unknown complex inhomogeneous propagation environment and a high charging efficiency. The focused wireless charging technology based on radio frequency receiving and phase compensation retransmission in embodiments could realize in-phase stacking and precise focus of each wireless charging signal of the external system on the embedded batteries to be charged automatically under different propagation environment, different environment medium, and possible random offset of the rechargeable battery. This method has strong environmental adaptability, high energy transmission efficiency, transmission stability, less radiation to human body and no need of accurate information of the location of charging equipment.
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