baber/WOPTO huggingface dataset:
Patent WO-2021087695-A1 (WO)
Inventor: XU WEITIAN
IPC: G06K9/00
Filed: 2019-11-04
Abstract: An optical fingerprint apparatus and an electronic device, wherein the fingerprint apparatus is applied to an electronic device having a display screen, and the optical fingerprint apparatus is used for being arranged below the display screen. The optical fingerprint apparatus comprises: an optical fingerprint chip, comprising a sensing array having a plurality of optical sensing units, wherein the sensing array is used for receiving a fingerprint light signal returned from a finger above the display screen, and the fingerprint light signal is used for acquiring a fingerprint image of the finger; and a light-shielding layer formed on an upper surface of an edge region of the optical fingerprint chip, wherein the light-shielding layer partially shields the edge region of the optical fingerprint chip, and does not shield a sensing region of the optical fingerprint chip, the light-shielding layer is used for shielding interference light that enters the sensing array from the edge region of the optical fingerprint chip, and the sensing region is a region where the sensing array is located.
Patent WO-2021000485-A1 (WO)
Inventor: HUANG WENTAO
IPC: G01S5/02
Filed: 2019-11-08
Abstract: Disclosed are a positioning method and apparatus, and a storage medium and an electronic device. The method comprises: acquiring device information of at least one hotspot device currently scanned by a first terminal, wherein the device information comprises a signal intensity value and first position information; on the basis of the device information of the at least one hotspot device, determining second position information of the first terminal; and sending the second position information to a server, such that the server sends the second position information to a second terminal in paired connection with the first terminal. By means of the embodiments of the present application, accurate position information can be acquired, and the positioning precision can thus be improved.
Patent WO-2021082077-A1 (WO)
Title: Asymmetric cryptographic terminal based on quantum random number, and communication system and method
Inventor: XU DONG
IPC: H04L9/08
Filed: 2019-11-13
Abstract: Disclosed are an asymmetric cryptographic terminal based on a quantum random number, a communication system including a plurality of asymmetric cryptographic terminals, and a secure communication method for performing secure communication by using the asymmetric cryptographic terminal. The cryptographic terminal comprises a quantum random number generator and a key generator. The quantum random number generator is used for generating and outputting two quantum random numbers; the key generator is used for firstly segmenting and truncating the two quantum random numbers into two groups of random number sequences with the same length, and then respectively converting, by means of a private-key algorithm and a public-key algorithm, the two groups of random number sequences into a group of private keys and a group of public keys that are paired with each other; and the asymmetric cryptographic terminal performs encryption, decryption, signature and signature verification according to a private key and a public key that are paired with each other. The cryptographic terminal in the present invention has a simple algorithm and a high secret-key update frequency, and both a digital signature service and a data encryption and decryption service can be provided during the communication process.
Patent WO-2021077517-A1 (WO)
Title: 一种电子烟烟管和电子烟
Inventor: JING HONGWEI
IPC: A24F47/00
Filed: 2019-11-20
Abstract: 一种电子烟烟管及电子烟，涉及香烟技术领域，电子烟包括电子烟烟管，电子烟烟管包括烟管本体（1）、背板灯（2）和电源模块（3），烟管本体（1）为中空的壳体，背板灯（2）设置于烟管本体（1）的外侧面，电源模块（3）设置于烟管本体（1）的内部，电源模块（3）与背板灯（2）电连接。当使用者吸电子烟时，电源模块（3）为背板灯（2）供电，背板灯（2）亮，亮起的背板灯（2）能提示周围的人群，与吸烟者保持一定的距离，避免二手烟的危害。
Patent WO-2020238130-A1 (WO)
Inventor: YOU WENJUN
IPC: G06F16/17
Filed: 2019-12-04
Abstract: 一种大数据日志监控方法，包括：获取日志数据，根据所述日志数据生成日志文件，将所述日志文件以预设格式存储至本地数据库中（S10）；获取监控关键字，从所述本地数据库中查找与所述监控关键字关联的日志文件（S20）；获取监控字段，将与所述监控关键字关联的日志文件与所述监控字段作为键值对，采用MapReduce数据处理模型统计所述日志文件中的监控字段的分类信息（S30）；将所述分类信息发送至指定位置显示（S40）。该大数据日志监控方法可在降低机器性能的情况下，快速响应用户的日志监控需求，有利于用户根据程序运行日志快速排除程序故障。
Patent WO-2020238134-A1 (WO)
Inventor: HU XIAOWEN
IPC: F04D13/06
Filed: 2019-12-05
Abstract: A heat-collecting pump (100) and a household appliance. The heat-collecting pump (100) comprises: a flow guide member (20) comprises a flow guide body (21) and at least one flow guide vane (22); at least one flow guide vane (22) is provided on the external peripheral wall of the flow guide body (21); a heating member (30) is provided on the periphery of the flow guide member (20), and is spaced apart from the flow guide vane (22) along the radial direction of the flow guide body (21); the flow guide value (22) is configured to enable a water flow to form a first whirl along the external peripheral wall of the flow guide body (21), and further form a second whirl in a gap between the heating member (30) and the flow guide vane (22); projections of a speed direction of the first whirl and a speed direction of the second whirl are opposite on a reference plane perpendicular to the axial direction of the flow guide body (21); the second whirl is used for carrying bubbles gathered on the heating member (30). According to the structure, the heat-collecting pump (100) can avoid a dry heating phenomenon occurring on the heating member.
Patent WO-2021103097-A1 (WO)
Inventor: GONG YI
IPC: H01L29/06
Filed: 2019-12-05
Abstract: The embodiments of the present invention provide a semiconductor super-junction power device, comprising a super-junction MOSFET cell array consisting of multiple super-junction MOSFET cells. A gate structure of each super-junction MOSFET cell comprises a gate dielectric layer, a gate, and an n-type floating gate. The gate and the n-type floating gate are located on the gate dielectric layer, and in the transverse direction, the gate is located on the side close to an n-type source region and the n-type floating gate is located on the side close to an n-type drift region. The gate acts on the n-type floating gate by means of capacitive coupling. The n-type floating gate of at least one super-junction MOSFET cell is isolated from a p-type body region by means of the gate dielectric layer, and the n-type floating gate of at least one super-junction MOSFET cell contacts the p-type body region through an opening in the gate dielectric layer located below the n-type floating gate to form a p-n junction diode. According to the embodiments of the present invention, the reverse recover speed of the semiconductor super-junction power device can be adjusted conveniently.
Patent WO-2020135063-A1 (WO)
Inventor: LI ZONGZHAN
IPC: B60C17/00
Filed: 2019-12-12
Abstract: 一种防钉刺轮胎爆胎保护装置，包括与轮毂接触的内圈（1），内圈（1）上外侧整圈圆周均布排列并固定有方形的高强硬度金属柱缸（2），柱缸（2）中套入装配有方形的高强硬度金属柱体（3），每个柱体（3）上方固定连接一片弧形的高强硬度金属支撑片（8），其中一个支撑片（8）上装有一个汽笛（9），每个柱缸（2）对应两侧的上部具有第一插销孔（62），保护装置解决了传统轮胎爆胎后胎体迅速干瘪、容易造成事故的问题，充分保证了爆胎事故中车辆行驶的稳定性，杜绝了爆胎发生后车辆跑偏的情况，保护了乘客的驾乘安全，给驾驶员提供了足够的反应时间，增加了事故安全有效处理的几率，具有反应速度快，工作效果显著，结构稳定性高，操作简便的优点。
Patent WO-2021119931-A1 (WO)
Title: 电机振动信号的计算方法、装置、终端及存储介质
Inventor: ZHENG YAJUN
IPC: H02P25/032
Filed: 2019-12-16
Abstract: 一种电机振动信号的计算方法，包括：接收待处理振动信号，基于待处理振动信号确定电机的启动振动强度、预启动时间和刹车振动强度、预刹车时间；获取电机的理论最短启动时间和理论最短刹车时间，根据理论最短启动时间、预启动时间、理论最短刹车时间和预刹车时间确定电机的目标启动时间及目标刹车时间；基于目标启动时间、目标刹车时间、启动振动强度和刹车振动强度，生成电机在预设幅度范围内的目标振动信号。还提供了一种电机振动信号的计算装置、终端以及一种计算机可读存储介质。
Patent WO-2021127974-A1 (WO)
Inventor: SUN ZHONGWANG
IPC: H01L27/11578
Filed: 2019-12-24
Abstract: A semiconductor device is provided. The semiconductor device includes a substrate, a stack of word line layers and insulating layers that are stacked alternatingly over the substrate, and channel structures formed in a first array region and a second array region of the stack. The first array region and the second array region are positioned at opposing sides of the stack. A first staircase is formed in a connection region of the stack over the substrate, where the connection region is arranged between the first and second array regions. A second staircase is formed in the connection region of the stack over the substrate, and the connection region in the stack includes a separation region between the first and second staircases.
Patent WO-2020155994-A1 (WO)
Inventor: YUAN CHUN
IPC: G06N20/20
Filed: 2019-12-27
Abstract: 一种混合专家强化学习方法及系统，其利用具有共享网络参数的多头智能体作为多个专家，通过深度确定性策略梯度算法训练该智能体，以同时学习一系列类似的任务。每个专家都被引入对状态下执行动作的不确定性估计，以增强抗过拟合的Q值评估能力和模型的整体性能。这些使智能体之间能够在不同的任务中提取、迁移并共享学习到的知识(特征表达)，从而提高单个任务的学习效率和在多个任务间调度专家的有效性。不同于传统的混合专家系统的数据驱动式的设计，其采用自我监督的门控网络来确定最具潜能的专家来处理未知任务的每一次交互，并能在没有人为外在监督信息的情况下，完全通过专家系统反馈的不确定性估计来校准调度的精确度。
Patent WO-2021093181-A1 (WO)
Title: Differential cotdr distributed acoustic sensing device and method based on heterogeneous double-sideband chirped pulse
Inventor: JIANG JUNFENG
IPC: G01V1/18
Filed: 2020-01-22
Abstract: A differential Coherent Optical Time Domain Reflectometry (COTDR) distributed acoustic sensing device based on a heterogeneous double-sideband chirped pulse. The device comprises a light source (1), a 1*2 polarization-maintaining fiber coupler (2), a dual Mach-Zehnder electro-optical modulator (3), an arbitrary waveform generator (4), a first reactatron (5), a second reactatron (6), an electro-optical modulator bias control board (7), a 1*2 fiber coupler (8), an erbium-doped fiber amplifier (9), a fiber filter (10), a fiber circulator (11), a sensing fiber (12), a three-ring polarization controller (13), a 2*2 fiber coupler (14), a balanced photoelectric detector (15), a data acquisition card (16), and a processing unit (17). Also disclosed is a differential COTDR distributed acoustic sensing method based on the heterogeneous double-sideband chirped pulse. According to the device and method, heterogeneous double-sideband chirped pulse modulation is combined with a COTDR technology, the sensitivity of acoustic wave signals to be detected is doubled, suppression of common-mode noise is achieved, and the signal-to-noise ratio is greatly improved.
Patent WO-2021128558-A1 (WO)
Title: 信号产生装置、驱动芯片、显示系统与led显示的驱动方法
Inventor: HUANG ZHIZHENG
IPC: G09G3/32
Filed: 2020-02-24
Abstract: 本申请提供了一种信号产生装置、驱动芯片、显示系统与LED显示的驱动方法。该电路包括第一生成设备，生成第一PWM波，第一PWM波的周期为T1；第二生成设备，生成延迟时钟信号，延迟时钟信号的周期为T2，T1＝NT2，N为大于0的正整数，第一时间相比第二时间延迟F×T2，F大于0且小于1，第一时间为延迟时钟信号的第一个上升沿对应的时间，第二时间为第一PWM波的第一个上升沿对应的时间；第三生成设备，根据第一PWM波和延迟时钟信号生成第三PWM波，第三PWM波的周期为T3，T3＝T1+F×T2，第三PWM波的第一个上升沿与第一PWM波的第一个上升沿同步。该电路可以对低灰阶的LED显示进行准确补偿。
Patent WO-2020173425-A1 (WO)
Title: 一种微晶玻璃及其生产方法与专用设备
Inventor: CHEN FU
IPC: C03C10/00
Filed: 2020-02-25
Abstract: 一种微晶玻璃及其生产方法与专用设备。微晶玻璃采用钽铌尾矿制备，可以减少对天然石材的盲目开采，提高钽铌尾矿的综合利用效率。该生产方法与专用设备得到的微晶玻璃气泡少、强度高，成品率和成品质量都有提升；而且生产利用了闲置的钽铌尾矿，节约了资源。
Patent WO-2021168724-A1 (WO)
Inventor: CAO PEIYAN
IPC: G01N23/04
Filed: 2020-02-27
Abstract: A method, comprising: for i = 1,..., M, sending a pencil radiation beam (i) toward an image sensor, wherein the pencil radiation beam (i) is incident on an incident region (i) on an active area of the image sensor, wherein the pencil radiation beam (i) is aimed at a target region (i) on the active area, wherein M is a positive integer, for i = 1,..., M, determining an offset (i) between the incident region (i) and the target region (i). The radiation detector(100) includes an array of pixels(150) and a absorption layer(110) and a electronics layer(120).
Patent WO-2020199819-A1 (WO)
Inventor: HUANG ZHEN
IPC: H04N5/225
Filed: 2020-03-02
Abstract: 一种摄像模组和阻式感光组件及其制造方法和电子设备。该摄像模组包括一阻式感光组件和至少一被设置于该阻式感光组件的马达镜头组件。该阻式感光组件包括一模塑感光组件和一被设置于该模塑感光组件的阻挡结构。该阻挡结构的阻挡面高于滤光元件的上表面，并且该阻挡结构的该阻挡面在该模塑感光组件上的投影的至少一部分与该马达镜头组件的光学镜头在该模塑感光组件上的投影重叠，以阻挡该光学镜头与该滤光元件直接接触。
Patent WO-2020224326-A1 (WO)
Title: Independent suspension system, and vehicle
Inventor: YANG HAO
IPC: B60G11/28
Filed: 2020-03-13
Abstract: Disclosed is an independent suspension system, comprising: a supporting arm (100); an upper cross arm (200) for pulling an upper portion of the supporting arm (100); a lower cross arm (300) for pulling a lower portion of the supporting arm (100); and an airbag damping support (400), the middle portion of which is arranged on the supporting arm (100), wherein the airbag damping support (400) is provided with a first airbag and a first damper on one side of the supporting arm (100), and the airbag damping support (400) is provided with a second airbag (500) and a second damper (700) on the other side of the supporting arm (100). By means of providing the airbag damping support (400), the first airbag and the second airbag (500) can be located on two sides of the supporting arm (100) so as to expand the safety distance from the first airbag and the second airbag (500) to wheels, such that the vertical motion of the vehicle can be prevented from interfering with the first airbag and the second airbag (500), and the sizes of the first airbag and the second airbag (500) are no longer limited, and the arrangement of the first airbag and the second airbag (500) enables the independent suspension system to bear a larger load. A vehicle using the suspension system is further provided.
Patent WO-2021098096-A1 (WO)
Title: Système et procédé de configuration de liaison latérale
Inventor: YANG JIN
IPC: H04W28/18
Filed: 2020-03-17
Abstract: L'invention concerne un système et un procédé de configuration de liaison latérale. Dans un mode de réalisation, le système et le procédé selon l'invention sont configurés pour transmettre, par un premier dispositif de communication sans fil, des informations requises pour former un rapport d'ensemble de ressources. Le système et le procédé sont également configurés pour recevoir, par le premier dispositif de communication sans fil, le rapport d'ensemble de ressources indiquant un ensemble de ressources, ledit ensemble étant sélectionné en fonction des informations requises.
Patent WO-2021036254-A1 (WO)
Inventor: LIU XIAOJIAN
IPC: G06F9/4401
Filed: 2020-03-31
Abstract: 一种在区块链中并发执行交易的方法和装置，所述方法在区块链中的第一节点执行，所述第一节点中预设有第一执行体，所述第一执行体当前在执行第一交易，所述第一交易中包括第一等待过程，所述方法包括：在所述第一执行体开始第一等待过程之后，使得所述第一执行体休眠(S302)，所述第一等待过程用于等待其它执行体完成预定操作；以及当所述其它执行体完成所述预定操作之后，通过所述其它执行体唤醒所述第一执行体(S304)，以使得所述第一执行体继续执行所述第一交易。
Patent WO-2021207900-A1 (WO)
Title: Physical downlink control channel configuration method, apparatus, device, and storage medium
Inventor: MU QIN
IPC: H04L5/00
Filed: 2020-04-13
Abstract: The embodiments of the present disclosure relate to the field of communication technologies, disclose a physical downlink control channel (PDCCH) configuration method, an apparatus, a device, and a storage medium. The PDCCH configuration method comprises: determining an aggregation level subset from a first set of aggregation levels; sending configuration information of the aggregation level subset to user equipment (UE); the first set of aggregation levels being a full set of aggregation levels configured to be used by the first type of UE; a second set of aggregation levels being a full set of aggregation levels configured to be used by the second type of UE; the aggregation levels included in the first set of aggregation levels being different from or not completely the same as the aggregation levels included in the second set of aggregation levels. The PDCCH configuration method provided in the embodiments of the present disclosure can increase the range of coverage that can be reached by a PDCCH.
Patent WO-2021073067-A1 (WO)
Inventor: WANG SHAOCUI
IPC: F15B13/02
Filed: 2020-04-26
Abstract: An oil circuit control device and a street sweeping vehicle, comprising a first overflow valve (221), a first three-position four-way directional reversing valve (11), and a second three-position four-way directional reversing valve (12). The first three-position four-way directional reversing valve (11) and the second three-position four-way directional reversing valve (12) are M-type reversing valves; an oil inlet of the first overflow valve (221) is connected to an oil inlet of the first three-position four-way directional reversing valve (11); an oil return port of the first overflow valve (221) is connected to an oil inlet of the second three-position four-way directional reversing valve (12); an oil return port of the first three-position four-way directional reversing valve (11) is connected to the oil inlet of the second three-position four-way directional reversing valve (12); an output end of the first three-position four-way directional reversing valve (11) is connected to a sucker height-adjusting oil cylinder (233); an output end of the second three-position four-way directional reversing valve (12) is connected to a first hydraulic motor (231). On the basis of series connection and the arrangement of the overflow valve, rotation of a sweeper is not affected while a sucker ascends and descends, and therefore, it is achieved that the sucker and the sweeper can operate at the same time; by using a serial oil circuit layout, an oil circuit structure is simplified, and the circuit layout of the street sweeping vehicle is optimized.
Patent WO-2020228531-A1 (WO)
Inventor: DAI JIANWU
IPC: G06Q10/06
Filed: 2020-04-28
Abstract: 本申请实施例提供了一种联盟链的治理方法及装置、计算机设备、存储介质。一方面，该方法包括：设置多个智能合约，其中，所述多个智能合约中每个智能合约对应联盟成员治理联盟链的一套决策逻辑；触发用于治理所述联盟链的治理请求；根据所述治理请求选择目标智能合约，并采用所述目标智能合约生成治理决策结果。通过本申请，解决了相关技术中治理联盟链时效率低或者不能体现共识机制的技术问题。
Patent WO-2021088343-A1 (WO)
Inventor: ZHOU TAO
IPC: A63C19/00
Filed: 2020-05-10
Abstract: 本发明公开了一种高尔夫球练习人工果岭,包括草坪垫板组件、人工草坪、草坪边沿围基，人工草坪铺设在草坪垫板组件上，所述草坪垫板组件包括若干块矩形草坪垫板；所述草坪垫板组件的外侧边沿环绕固定连接有草坪边沿围基而使草坪边沿围基之内形成有高尔夫球练习池；所述草坪边沿围基包括转角位围基及直边围基，草坪垫板组件的四个转角位用转角位围基与矩形草坪垫板固定连接，转角位围基之间的边长用直边围基与矩形草坪垫板固定连接；矩形草坪垫板、直边围基的数量根据高尔夫球练习人工果岭的长和/或宽增加而增加，减少而减少；其使用灵活，高尔夫球练习人工果岭长和/或宽可以自由加长、加宽或减少长、宽，自由调节。可以提高练习兴趣及增加或减少练习难/易度。
Patent WO-2021128706-A1 (WO)
Title: 一种天然气扩散系数测量装置
Inventor: HU SHUYONG
IPC: G01N13/00
Filed: 2020-05-18
Abstract: 一种天然气扩散系数测量装置，属于气体参数测量装置，包括岩心室和分别设置在岩心室两侧的两个取样检测装置，还包括分别设置在岩心两侧的两个供压装置，供压装置包括中间容器和气源以及同步增加两个中间容器压力的同步增压组件。中间容器中的初始压力调至一致后，增压量也相同，保证岩心两侧的气压相同。解决了现有技术中测量过程中压差过大的问题。
Patent WO-2020238969-A1 (WO)
Title: Gearbox and driving device using the same
Inventor: TA JINGNING
IPC: F16H1/32
Filed: 2020-05-27
Abstract: A gearbox (20) includes a sun gear (30), a plurality of planetary gears (40) meshed with the sun gear (30), a rotating frame (60) supporting the planetary gears (40), and a housing with an internal ring gear (71) meshed with the planetary gears (40). The the planetary gears (40) includes a first gear (41) and a second gear (42) coaxially connected to each other along an axial direction and rotating synchronously, the first gear (41) meshed with the sun gear (30), and the second gear (42) meshed with the internal ring gear (71) of the housing (70). The rotating frame (60) received in the housing (70) has an upper frame (61) and a lower frame (62) with a central hole, each of the plurality of planetary gears (40) is arranged between the upper frame (61) and the lower frame (62) by a mounting pin (50), the lower frame (62) is supported by a flange (80) connected to the housing (70), the sun gear (30) is driven to rotate so as to operate the rotating frame (60). The gearbox (20) of the present disclosure has low vibration and low noise.
Patent WO-2021143031-A1 (WO)
Title: Insulating heat conduction potting electrical element and potting method therefor
Inventor: TIAN JINGCHENG
IPC: H05K5/00
Filed: 2020-06-01
Abstract: The present invention relates to the technical field of electrical manufacturing, relates to an insulating heat conduction potting electrical element, and solves the problems in the prior art of large amount and high cost required for a potting adhesive of an electrical element. The insulating heat conduction potting electrical element comprises a housing; a member to be potted is provided in the housing; a gap is provided between said member and the housing; the gap is filled with a heat conduction insulating adhesive; large particle size solid particles are provided in the heat conduction insulating adhesive. According to the insulating heat conduction potting electrical element, by providing the large particle size solid particles in the adhesive, the amount of the adhesive can be reduced. The large particle size solid particles have lower cost than the adhesive, but higher thermal conductivity than the adhesive. The addition of the large particle size solid particles can improve the toughness of the adhesive. The present invention simultaneously achieves the functions of reducing costs, improving the toughness of the adhesive, and improving the heat conduction effect.
Patent WO-2021047213-A1 (WO)
Title: Outdoor robot and control method therefor
Inventor: ANDRIOLO PAOLO
IPC: G05D1/02
Filed: 2020-06-04
Abstract: A control method for an outdoor robot (100). The outdoor robot (100) comprises an actuation apparatus (30) and an actuation motor (40) that drives the actuation apparatus (30) to execute a work task. The control method comprises obtaining load parameters for the actuation motor (40) during operation of the outdoor robot (100) (S1); obtaining, on the basis of the load parameters, a load change rate parameter (S2); determining that the load change rate parameter represents an increase in load and that the load change rate parameter exceeds a preset threshold range, and consequently stopping the operation of the actuation apparatus (30) (S3). The present control method is able to accurately detect, in a timely manner, whether the actuation apparatus (30) has come into contact with a biological organism or other obstruction and, upon coming into contact with an obstruction, controls, in a timely manner, the operation of the actuation apparatus (30), which can improve obstruction detection accuracy, and thereby improves the safety and work efficiency of the outdoor robot (100).
Patent WO-2021253279-A1 (WO)
Title: Preventing frequent 5g new radio (nr) cell handovers in a non-standalone (nsa) mode when user equipment (ue) is stationary
Inventor: WANG HAOJUN
IPC: H04W36/32
Filed: 2020-06-17
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer- readable media, for preventing frequent 5GNew Radio (NR) cell handovers when a user equipment (UE) is stationary and is operating in a non- standalone (NSA) Evolved Universal Terrestrial Radio Access (E-UTRA) NR Dual Connectivity (EN-DC) mode. In some aspects, the UE may determine a first signal quality measurement for a 5G serving cell and a second signal quality measurement for a 5G neighbor cell. The UE may determine whether the UE, remained stationary for a time period based on sensor information. If the UE remained stationary, the UE, may modify the first signal quality measurement with a static bias offset. The UE may determining whether to output a handover measurement report, for transmission to the 5G serving cell based on the modified first signal quality measurement and the second signal quality measurement.
Patent WO-2021212660-A1 (WO)
Title: 分布式数据加密方法、装置、云存储服务器及存储介质
Inventor: Yi Shanfeng
IPC: G06F21/60
Filed: 2020-06-30
Abstract: 一种分布式数据加密方法、装置、云存储服务器及存储介质，涉及云存储和大数据技术领域。所述方法包括：获取待加密数据和加密密钥；对待加密数据进行切片得到多个切片数据；将加密密钥及多个切片数据分发给多个加密装置；接收多个加密装置使用加密密钥对切片数据进行加密后上报的多个第一切片密文；采用交叉的方式将多个第一切片密文分发给多个加密装置；接收多个加密装置使用新的加密密钥对第一切片密文进行加密后上报的第二切片密文，其中所述新的加密密钥是加密装置对加密密钥进行再加密得到的；存储所述第二切片密文。通过对待存储数据进行切片加密并交叉进行二次加密，提高了海量数据加密的速度和效率，为数据的安全性提供了保障。
Patent WO-2021008383-A1 (WO)
Inventor: RUAN QINGBO
IPC: H04R17/00
Filed: 2020-07-02
Abstract: Embodiments of the present disclosure disclose a speaker and a terminal device. The speaker comprises a non-closed chamber, a diaphragm component disposed in the chamber, and a piezoelectric component disposed on a first surface of the diaphragm component. A second surface of the diaphragm component is spaced apart from a first inner surface of the chamber, and a first surface of the piezoelectric component is spaced apart from a second inner surface of the chamber. The first surface and the second surface of the diaphragm component are two opposite surfaces on the diaphragm component, the first surface and a second surface of the piezoelectric component are two opposite surfaces on the piezoelectric component, and the second surface of the piezoelectric component is in contact with the first surface of the diaphragm component. The speaker can be applied to the terminal device.