baber/WOPTO huggingface dataset:
Patent WO-2021056293-A1 (WO)
Inventor: HE ZHAOYANG
IPC: H04R9/06
Filed: 2019-09-25
Abstract: The present invention relates to a horn device. The horn device comprises a housing, and a magnetic circuit system and a vibration system arranged in the housing, wherein the vibration system comprises a drive coil capable of generating a mechanical motion under the action of a magnetic field of the magnetic circuit system, and a diaphragm driven by the drive coil; the drive coil is planar; and the magnetic circuit system comprises at least one electromagnet. Since a drive circuit of the vibration system is planar, the thickness of the horn device can thus be effectively reduced.
Patent WO-2020088162-A1 (WO)
Title: Wavelength conversion device and preparation method therefor, light emitting device, and projecting device
Inventor: XU HU
IPC: F21V7/22
Filed: 2019-09-26
Abstract: A wavelength conversion device (100) and preparation method therefor, and a light emitting device and a projecting device using the wavelength conversion device (100). The wavelength conversion device (100) comprises a substrate (10), a diffuse reflection layer (20), and a red inorganic light emitting layer (30) that are stacked in sequence. The diffuse reflection layer (20) is formed by mixing reflection power and a silicone gum. The red inorganic light emitting layer (30) is formed by mixing and curing red fluorescent powder and water glass. The wavelength conversion device has good heat resistance and can bear high optical power density.
Patent WO-2020114056-A1 (WO)
Inventor: YU JIE
IPC: H04R31/00
Filed: 2019-09-29
Abstract: Disclosed is an assembling method for a magnetic circuit assembly. The assembling method comprises: providing a magnetic conduction plate and a magnet, and making the magnetic conduction plate cover the magnet; providing a thermosetting adhesive between the magnetic conduction plate and the magnet; providing the magnetic conduction plate and the magnet in a high frequency alternating magnetic field, and heating the magnetic conduction plate and the magnet by using the high frequency alternating magnetic field; and after the thermosetting adhesive is cured, fixedly connecting the magnetic conduction plate and the magnet. The present invention has the technical effects of accelerating the curing speed of the adhesive, uniformly heating the adhesive, and improving the bonding effect of the adhesive.
Patent WO-2020108148-A1 (WO)
Inventor: TIAN RENGUI
IPC: H02M1/00
Filed: 2019-10-17
Abstract: A side-opening power supply housing structure and a power supply device. The side-opening power supply housing structure comprises a power supply box and a wiring box. An end portion of the power supply box is provided with a wiring end exposed from the power supply box. The wiring box comprises a box and a cover. The box is detachably connected to an end of the power supply box having the wiring end, and a clearance space for the wiring end is provided at a side of the box near the wiring end. The clearance space is in communication with an interior space of the box, and the wiring end can be disposed within the box by means of the clearance space. The cover is pivotally connected to a side wall of the box adjacent to the clearance space. The side-opening power supply housing structure of the present application has the detachably-connected wiring box and power supply box, thereby facilitating assembly and disassembly. In addition, the cover covering the wiring box is pivotally connected to a side wall of the box adjacent to the wiring end, such that the cover can be opened to the left or right of the wiring end, thereby preventing the cover from interfering with wiring operations, and preventing the cover from accidentally falling off.
Patent WO-2021072766-A1 (WO)
Inventor: TANG KETAN
IPC: G05D1/08
Filed: 2019-10-18
Abstract: A flight control method and system, an unmanned aerial vehicle, and a storage medium. The method comprises: using an image capture apparatus to acquire an environment image of the surroundings of an unmanned aerial vehicle (S101); determining marker information in the environment image, and determining a flight control instruction that matches the marker information, wherein a marker comprises at least one of the following: a positioning marker and an instruction marker (S102); and executing the flight control instruction (S103).
Patent WO-2021007977-A1 (WO)
Inventor: LI YUANHANG
IPC: G06F3/041
Filed: 2019-10-21
Abstract: A touch substrate (10, 20) and a display panel. The touch substrate (10, 20) comprises a touch area (11, 21) and a bonding area (12, 22), and the touch substrate (10, 20) comprises a plurality of first touch electrodes (13, 23) and a plurality of first leads (14), the plurality of first touch electrodes (13, 23) are located in the touch area (11, 21), and one end of each of the plurality of first leads (14) is connected to one of the plurality of first touch electrodes (13, 23), and the other end of each of the plurality of first leads (14) is respectively connected to the bonding area (12, 22), wherein at least one lead of the plurality of first leads (14) is located in the touch area (11, 21).
Patent WO-2020083358-A1 (WO)
Inventor: DAI JIAXIN
IPC: G06F16/90
Filed: 2019-10-25
Abstract: 一种可视化业务数据操作系统及方法，所述系统包括：客户端（101），用于提供GUI，接收用户（102）在GUI执行的用户操作指令，将用户操作指令转换为数据操作指令，将数据操作指令发送至服务器端（103），接收来自服务器端（103）的数据操作结果，在GUI上展示数据操作结果，和/或在本地存储数据操作结果；服务器端（103），用于接收数据操作指令，生成数据操作指令对应的字段结构和/或生成数据操作指令对应的字段结构的可用操作方案，执行数据操作指令，获取数据操作结果，将数据操作结果发送至客户端（101）。该技术方案能够通过图形化的方式，准确、灵活、简单方便地完成业务数据操作。
Patent WO-2020088637-A1 (WO)
Inventor: REN XIAOTAO
IPC: H04L5/00
Filed: 2019-11-01
Abstract: 公开了一种信号的发送方法及终端，信号的发送方法包括：在一组时隙的每个时隙中，发送同步信号块SSB；每个时隙包括至少两个SSB，每个所述SSB中的辅同步信号SSS与解调参考信号DMRS在至少一个OFDM符号上频分复用；所述SSB为主同步信号PSS、辅同步信号SSS与物理广播信道PBCH的组合块。
Patent WO-2020177363-A1 (WO)
Inventor: CHEN ZHENGUO
IPC: C02F1/78
Filed: 2019-11-05
Abstract: Disclosed is an efficient wastewater dissolved gas treatment device, comprising a first connecting tube (10), a second connecting tube (20), and a magnetic venturi tube body (30). The magnetic venturi tube body (30) comprises a conical contraction section (301), a cylindrical throat pipe section (302) and a conical diffusion section (303), wherein one end of the magnetic venturi tube body (30) extends into the first connecting tube (10), the other end of the magnetic venturi tube body (30) extends into the second connecting tube (20), the first connecting tube (10) and the second connecting tube (20) are detachably connected, the middle of the cylindrical throat pipe section (302) is provided with a gas inlet (304), and the gas inlet (304) penetrates the second connecting tube (20). Ozone is introduced during wastewater conveyance, the dissolved quantity of the ozone is improved, and also a ferromagnetic venturi tube magnetizes wastewater, and the wastewater treatment efficiency is improved.
Patent WO-2021098010-A1 (WO)
Inventor: DING QINGXIA
IPC: H04R9/04
Filed: 2019-12-27
Abstract: Disclosed are a sound generation device module and an electronic product. The sound generation device module comprises a housing assembly, wherein the housing assembly comprises a first housing (20) and a second housing (10), which are combined to form a first side wall of the housing assembly and a second side wall thereof, which is opposite the first side wall, and a side sound outlet is formed in the first side wall; a first fixing face (201) and a second fixing face (202) are formed on an area of the first housing (20), the first fixing face (201) has a higher height than the second fixing face (202), and hot melting protruding edges (102, 101) are arranged on the second housing (10); and the first housing (20) and the second housing (10) are fastened and fixed, the hot melting protruding edges (102, 101) are pressed on the two fixing faces, the hot melting protruding edges (102, 101) are pressed on the two fixing faces, the hot melting protruding edges (102, 101) are fixedly connected to the first fixing face (201) and the second fixing face (202) by means of melting by using a melting process, and the open height of the side sound outlet is gradually reduced in the direction from the first side wall to the second side wall. By means of structural improvement, the open height of the side sound outlet is gradually reduced in the direction from the first side wall to the second side wall, such that a side sound outlet of a positive horn mouth is obtained, abnormal airflow sound is eliminated, and the high-order distortion of products is reduced.
Patent WO-2021134687-A1 (WO)
Inventor: TANG MINGJIAN
IPC: G05D1/10
Filed: 2019-12-31
Abstract: 一种航点规划方法、控制终端(10,300)、定位装置(20)、系统及存储介质，其中的方法包括：获取航点位置数据(S101)；定位装置(20)基于航点位置数据，校正目标航点的当前位置信息，以确定目标航点的目标位置信息(S102)；获取定位装置发送的目标航点的目标位置信息(S103)。由此，提高了航点规划的准确性。
Patent WO-2020143632-A1 (WO)
Inventor: LIU ZHE
IPC: H04W52/28
Filed: 2020-01-07
Abstract: Embodiments of the present application provide a sidelink power control method and a terminal, pertaining to the field of wireless communications, and providing a power sharing method to a terminal sending information via a first transmission link and a second transmission link, such that a transmission power sum of the first transmission link and the second transmission link for sidelink transmission is controlled to not exceed a maximum transmission power of the terminal. The method comprises: acquiring a first maximum transmission power and a second maximum transmission power; if a terminal determines to send first information via a first transmission link and second information via a second transmission link in a frequency-division multiplexing mode, calculating a first actual power and a second actual power according to the first maximum transmission power and the second maximum transmission power; and if a sum of the first actual power and the second actual power is greater than a first power threshold, determining a first final power and a second final power according to the first actual power and the second actual power.
Patent WO-2021047137-A1 (WO)
Title: Medicine for treating periodontal disease caused by periodontal pathogen infection
Inventor: TAN JIALI
IPC: A61K49/00
Filed: 2020-01-14
Abstract: Provided is a medicine for treating periodontal ligament cell dysfunction and alveolar bone loss caused by periodontal pathogen infection, the medicine comprising IL-18 antibodies and/or IL-18R receptor siRNA exosomes. The medicine according to the present invention uses IL-18 antibodies and/or loaded IL-18R receptor siRNA exosomes as functional components, and binds same to IL-18 in periodontal tissue so as to inhibit periodontal ligament cells from secreting pro-inflammatory cytokines, and reduce the effect of periodontal supporting tissue loss and inflammatory cell infiltration that are caused by periodontal ligament cell dysfunction under inflamed conditions, thereby preventing the occurrence and development of periodontal disease, which has great potential application value for the clinical prevention and treatment of periodontal disease.
Patent WO-2021017428-A1 (WO)
Inventor: LI MEITONG
IPC: C01D3/04
Filed: 2020-01-14
Abstract: 一种利用工业废盐制备精制工业盐的方法，属于资源环境技术领域。将工业废盐经预处理除去工业废盐中部分水和可挥发有机物，再经过碳化将工业废盐中的有机物部分分解，再经过高温氧化处理将碳废盐中有机物氧化为二氧化碳和水彻底除去；最后经过水溶解、去除重金属和水不溶物、蒸发结晶、固液分离和烘干工序得到精制工业盐。上述方法原理可靠、设计合理，可以低成本实现废盐的资源化处理，符合国家循环经济政策，有着显著经济和环境效益。
Patent WO-2020186917-A1 (WO)
Inventor: WU TINGCHENG
IPC: G06F9/50
Filed: 2020-01-14
Abstract: 公开了一种视频处理任务项的创建方法及输入视频流的调度方法，涉及人工智能视觉识别技术领域。该视频处理任务项的创建方法包括：在用户界面上检测到用于创建视频处理任务项的事件时，确定与视频处理任务项相关的摄像头的信息；确定视频处理任务项的任务项名称以及视频处理任务项的运行时间段；以及基于与视频处理任务项相关的摄像头的信息、任务项名称与运行时间段，在用户界面上创建视频处理任务项。本申请实施例提供的视频处理任务项的创建方法使得用户可以在视频处理系统的用户界面上创建视频处理任务项，进而使得用户可以直观获知任何关于视频处理任务项的信息。
Patent WO-2020164436-A1 (WO)
Inventor: WANG RUI
IPC: H04W36/08
Filed: 2020-02-06
Abstract: 本申请实施例公开一种通信方法、装置及系统，涉及通信技术领域，能够解决终端配置目标站消耗的时间较长，配置速率较低的问题。该通信方法应用于包括第一子系统和第二子系统的通信系统，第一子系统包括通信装置和源辅站，且通信装置和源辅站为终端提供服务，第二子系统包括目标主站，目标主站的网络制式与源辅站的网络制式相同。具体的，通信装置向目标主站发送包括源辅站的网络制式信息的切换请求消息，用于请求将终端切换到目标主站；相应的，通信装置接收来自目标主站的切换命令，该切换命令用于指示根据源辅站的辅小区组SCG的配置信息对目标主站的主小区组MCG进行配置；后续，通信装置向终端发送该切换命令。
Patent WO-2021168797-A1 (WO)
Inventor: ZHAO CHONG
IPC: H01F17/04
Filed: 2020-02-28
Abstract: A common mode choke (200, 1100) comprises a core (240). The common mode choke (200, 1100) further comprises a first coil (221), a second coil (222), a third coil (223), and a fourth coil (224) wound around the core (240). The common mode choke (200, 1100) is operative to attenuate any common mode component of a pair of signals. A first signal of the pair of the signals passes through two of the first through fourth coils (221, 222, 223, 224) and a second signal of the pair of the signals passes through the other two of the first through fourth coils (221, 222, 223, 224), such that at least a part of the magnetic field created by the first signal has a direction identical to that of at least a part of the magnetic field created by the second signal.
Patent WO-2021184153-A1 (WO)
Inventor: DONG YI
IPC: H04N21/8549
Filed: 2020-03-16
Abstract: 本说明书提供了摘要视频的生成方法、装置和服务器。在一个实施例中，摘要视频的生成方法通过先从目标视频中提取出多个图像数据，并分别确定出各个图像数据的视觉类标签等图像标签；再根据目标视频的类型、目标视频的摘要视频的时长参数，结合多个预设剪辑手法子模型，建立针对该目标视频的目标剪辑模型；进而可以利用该目标剪辑模型，根据目标视频的图像数据的图像标签来基于视觉角度对该目标视频进行针对性的剪辑处理，从而能够高效地生成与原始的目标视频相符、内容准确，且对用户有较大吸引力的摘要视频。
Patent WO-2020220949-A1 (WO)
Title: Goods shelf shuttle and goods shelf system
Inventor: LIU CHEN
IPC: B65G1/10
Filed: 2020-04-08
Abstract: A goods shelf shuttle and a goods shelf system. The goods shelf shuttle comprises a vehicle body (100), an access device (500), and a lifting device (600); an accommodating chamber used for accommodating the access device (500) is formed inside of the vehicle body (100); the access device (500) comprises a fixed part (510) and a mobile part (520) used for accessing goods (900); the mobile part (520) may move by extending and retracting with respect to the fixed part (510); the lifting device (600) is connected between the fixed part (510) and the vehicle body (100), and the lifting device (600) is used for driving the fixed part (510) to move along the vertical direction, thus enabling the access device (500) to extend outwards or retract into the accommodating chamber. By using the present goods shelf shuttle and goods shelf system, since the access device of the goods shelf shuttle may move along the vertical direction under the drive of the lifting device, goods on each layer of the goods shelf may be accessed, thereby reducing the number of goods shelf shuttles and lowering production costs.
Patent WO-2021212579-A1 (WO)
Title: 阵列基板及其制造方法、显示装置
Inventor: ZHAO BIN
IPC: H01L21/77
Filed: 2020-05-15
Abstract: 一种阵列基板及其制造方法、显示装置，通过以图案化黑色负性光阻层（106）作为蚀刻阻挡层蚀刻第二绝缘层（105），使得用于传输电信号且与源漏电极（1043/1044）同层的第二导电件（1041）显露，第二导电件（1041）替代传统技术中的氧化铟锡以与驱动芯片电性连接，减小形成氧化铟锡的制程，且减少使用一个光罩，简化制程，节约生产成本且提高生产效率。
Patent WO-2020238714-A1 (WO)
Title: 一种高效的铁水预处理自动扒渣方法和系统
Inventor: YU YAN
IPC: G06T7/00
Filed: 2020-05-20
Abstract: 一种高效的铁水预处理自动扒渣（4）方法和系统，该方法包括步骤：采集铁水包（1）口区域的图像，并对图像进行预处理；对图像内的铁水（5）表面的渣（4）进行识别，以确定铁水（5）表面的渣（4）在图像中的位置以及铁水（5）表面的渣（4）在图像内所占的总面积比例；基于铁水（5）表面的渣（4）在图像中的位置，寻找出最优扒渣（4）路径，最优扒渣（4）路径为扒渣（4）时间与扒渣（4）量的比值最小的路径；在自动扒渣（4）过程中，控制扒渣头按照最优扒渣（4）路径进行扒渣（4）；并且当满足启动条件时，启动吹气赶渣装置（33）将分散的铁水（5）表面的渣（4）聚集在一起以便于高效扒渣（4），其中启动条件为：铁水（5）表面的渣（4）在图像内所占的总面积比例slag％小于设定的吹气赶渣（4）启动阈值。
Patent WO-2020259139-A1 (WO)
Inventor: YOU KAIJIE
IPC: H01M2/10
Filed: 2020-05-20
Abstract: The present invention relates to a battery pack, a battery pack fabrication method, and a vehicle, wherein the battery pack comprises a box body assembly, battery units, restraining members, and an external cover; the box body assembly comprises a box body and fixed beams, and the fixed beams are fixed inside the box body; the battery units are disposed inside the box body; the restraining members cover the battery units and are fixed to the fixed beams; and the external cover is disposed on a side of the restraining members away from the box body and closes the opening end of the box body. By means of the provision of restraining members and fixing same to the fixed beams, when the battery unit expands the battery pack may provide a stable and effective pressing force to the battery unit to reduce the degree of expansion and deformation of the battery unit; moreover, due to the provision of the restraining members, the deformation of the external cover may be reduced, which may improve the sealing performance of the battery pack.
Patent WO-2021017618-A1 (WO)
Title: Method, apparatus, and device for achieving consistent configuration between control plane and forwarding plane
Inventor: ZHANG YAO
IPC: H04L12/24
Filed: 2020-06-01
Abstract: A method, apparatus, and device for achieving consistent configuration between a control plane and a forwarding plane, and a computer-readable storage medium. The method comprises: a control plane issues configuration data to a forwarding plane; the control plane determines the configuration state of the configuration data, does not perform rollback processing when the configuration state shows that configuration is not successful, and re-issues the configuration data or issues an alert according to the configuration state. By means of embodiments of the present invention, layered rollback of the past is abandoned, and by means of carrying out processing according to configuration state, the consistency of configuration is guaranteed for a means of implementation in which the rollback means at each stage are inconsistent.
Patent WO-2021174701-A1 (WO)
Inventor: BAI YINGRUI
IPC: C09K8/467
Filed: 2020-06-02
Abstract: Disclosed are a high-temperature-resistant high-oil-absorption resin particle plugging agent suitable for an oil-based drilling fluid and a preparation method therefor. The plugging agent is prepared from the following raw materials in parts by mass: 15-30 parts of a reactive monomer, 5-12 parts of a linear polymer, 0.1-1.5 parts of a crosslinker, 0.1-0.5 parts of an initiator, 1-3 parts of a modified starch, 1-5 parts of filler particles, and 1-5 parts of a dispersant. The resin particle plugging agent not only has a high oil absorption capability under high temperature conditions, but also has a high toughness after oil absorption expansion, will not easily break during extrusion and drawing, and effectively plugs high-temperature leakage channels; in addition, the resin plugging particles are not affected by fracture factors. In addition, the preparation process therefor is simple, and the influence on the performance of an oil-based drilling fluid is low, resulting in convenience for both production and field operation.
Patent WO-2021017645-A1 (WO)
Inventor: LI HONGLIANG
IPC: C07C229/34
Filed: 2020-06-08
Abstract: 本发明属于医药合成领域，涉及制备手性β-氨基酸及其衍生物的消旋制备方法，特别是涉及一种西格列汀中间体的消旋方法。(I), (II) 其中，R1为氢、烷基或芳基；R2为氢、烷基或芳基；R3为氢、烷基、芳基或酰基；R4为烷基、芳基、OR'、SR'、NHR'或NR'R"。其中R'，R"为氢、烷基或芳基。
Patent WO-2021179459-A1 (WO)
Title: 液晶材料、液晶显示面板的制作方法及液晶显示面板
Inventor: CHEN MEI
IPC: G02F1/1337
Filed: 2020-06-11
Abstract: 液晶材料、液晶显示面板的制作方法及液晶显示面板，液晶材料包括负性液晶分子（41）以及一种或多种硫醇类聚合单体（33）。显示面板采用"巯基与双键"体系发生点击化学反应聚合得到的聚合物薄膜来锚定基板表面负性液晶分子（41）的取向状态，杂质更少、面板显示的残像风险更低。
Patent WO-2021004289-A1 (WO)
Inventor: SHEN HONG
IPC: B65G17/36
Filed: 2020-06-24
Abstract: 一种导轨自动传送装置及其方法，应用于端子卡装机，导轨自动传送装置包括：导轨料仓（1），其内部等间距设置有多个用以放置导轨的料槽（2），多个料槽（2）在第一驱动装置（3）的驱动下做闭环运动，在多个料槽（2）闭环运动轨迹上选择一处作为推料工位；第一推料装置（5）与推料工位相对应设置，用以推动运动至推料工位处料槽（2）中的导轨；控制模块，其与第一驱动装置（3）和第一推料装置（5）相连。
Patent WO-2021004338-A1 (WO)
Inventor: XU GENFU
IPC: G01R27/02
Filed: 2020-06-30
Abstract: 本公开提供电阻治具以及调阻机，涉及激光切割技术领域，一定程度上解决当采用激光进行切割时，由于装配空间有限，导致检测组件无法对待测电阻的阻值进行检测的技术问题。电阻治具包括框架、设置在框架内部的检测组件以及能够驱动检测组件靠近或远离待测电阻的驱动组件；配置成切割待测电阻的切割构件与检测组件位于待测电阻背对的两侧。本公开适配置成激光对电阻切割，当采用激光头对电阻切割时，激光头距离电阻的距离近，如果采用常规的将检与切割构件设置在待测电阻的同一侧，将无法准确检测电阻的电阻值，本公开中配置成切割待测电阻的切割构件与检测组件位于待测电阻背对的两侧，可以准确检测电阻值。
Patent WO-2021057158-A1 (WO)
Title: Self-adaptive zvs circuit and control method therefor
Inventor: LU PENGFEI
IPC: H02M1/088
Filed: 2020-07-03
Abstract: Disclosed are a self-adaptive ZVS circuit and a control method therefor. The self-adaptive ZVS circuit comprises a power supply V1, a power supply V2, a power supply V3, a switch tube Q1, a switch tube Q2, an inductor L and a double-comparison unit, wherein a drain electrode of the switch tube Q1 and one input end of the double-comparison unit are connected to the power supply V1; a source electrode of the switch tube Q1, a drain electrode of the switch tube Q2 and the other input end of the double-comparison unit are connected to one end of the inductor L1; a source electrode of the switch tube Q2 is connected to the power supply V2; and the other end of the inductor L1 is connected to the power supply V3. In the present invention, a generalized ZVS definition is utilized; and by means of the double-comparison unit, whether a switch tube realizes ZVS can be simply and quickly determined, and a control circuit is informed of whether adjustment is performed in the next period and how to adjust a circuit time sequence in order to realize self-adaptive ZVS of the switch tube. Due to the fact that a comparison speed is far greater than the speed of a sampling and holding circuit, the advantages are even more apparent during high-frequency application.
Patent WO-2021077809-A1 (WO)
Title: Information fusion method and system
Inventor: SHEN ZESHU
IPC: G08G1/0967
Filed: 2020-07-13
Abstract: An information fusion method, which relates to the field of intelligent driving. The method is applied to a smart vehicle (100), and comprises: a plurality of sensory information sets, wherein each sensory information set comprises at least one piece of target information, and different sensory information sets originate from sensory systems of different devices (S402); when at least two sensory information sets among the plurality of sensory information sets comprise first target information, first target information in the at least two sensory information sets is fused to obtain fused first target information (S404). By means of fusing multi-source information of the same target, the obtained fused target information is made to be more accurate and valid.
Patent WO-2022011650-A1 (WO)
Inventor: ZHAO QUN
IPC: G01S11/08
Filed: 2020-07-16
Abstract: 本公开提供了一种同步系统中的测距方法、装置、设备及可读存储介质，涉及通信领域。该方法包括：向第二终端发送第一测距信号；确定第一时间差，第一时间差为第一终端设备发送第一测距信号的时刻与第一终端定时之间的时间差；第一时间差用于结合第二时间差，确定第一终端设备和第二终端设备之间的距离，第二时间差为第二终端设备接收第一测距信号的时刻与第二终端定时之间的时间差。在同步系统中，通过第一终端设备向第二终端设备发送第一测距信号，并根据接收第一测距信号的时刻与第二终端定时确定第二时间差，根据发送第一测距的时刻与第一终端定时确定第一时间差，从而根据第二时间差和第一时间差确定第一终端设备和第二终端设备之间的距离。
Patent WO-2022027364-A1 (WO)
Title: Access authentication method for bluetooth device, electronic device, and storage medium
Inventor: ZHANG JUN
IPC: H04W4/80
Filed: 2020-08-05
Abstract: Disclosed is an access authentication method for a Bluetooth device, comprising: a gateway determining a verification credential of a Bluetooth device; and the gateway sending, to a cloud platform, the verification credential of the Bluetooth device, the verification credential of the Bluetooth device being used by the cloud platform to determine the validity of the Bluetooth device. Also disclosed are another access authentication method for a Bluetooth device, an electronic device, and a storage medium.
Patent WO-2021023283-A1 (WO)
Inventor: HUANG PEI
IPC: C23C14/34
Filed: 2020-08-07
Abstract: An aluminum scandium alloy target and a manufacturing method for the same. The manufacturing method comprises: selecting metallic aluminum and metallic scandium at a purity of 99.99% above; preparing ingredients according to a metallic scandium mass percentage of 5-40% and a metallic aluminum mass percentage of 60-95%, and doping the metallic aluminum in the metallic scandium in multiple passes, performing smelting repeatedly, so as to obtain a desired aluminum scandium alloy; casting the aluminum scandium alloy in a die, and obtaining an aluminum scandium alloy target billet; and machining the aluminum scandium alloy target billet to obtain the aluminum scandium alloy target. The manufacturing method addresses the problems of the prior art in which uniform distributions of ingredients in a target are difficult to achieve, scandium is not uniformly distributed, and targets have a high oxide content, a low compactness, a low alloy purity, and are unsuitable for manufacturing a sputter coating.