baber/WOPTO huggingface dataset:
Patent WO-2020156532-A1 (WO)
Inventor: ZHANG LI
IPC: H04N19/103
Filed: 2020-02-01
Abstract: L'invention concerne un procédé de traitement vidéo consistant à : déterminer, pour une conversion entre un bloc vidéo actuel d'une vidéo et une représentation codée de la vidéo, s'il faut désactiver l'utilisation d'un mode de codage sur la base d'une ou de plusieurs valeurs de coefficient du bloc vidéo actuel ; et effectuer la conversion sur la base de la détermination, au cours de la conversion à l'aide du mode de codage, selon laquelle le bloc vidéo actuel est construit sur la base d'un premier domaine et d'un second domaine et/ou un résidu de chrominance est mis à l'échelle en fonction de la luminance.
Patent WO-2021159483-A1 (WO)
Title: Cartridge holder for surgical staples and having ridges in peripheral walls for gripping tissue
Inventor: ZHOU XIAO
IPC: A61B17/072
Filed: 2020-02-14
Abstract: A surgical stapling device (10) is disclosed including a tool assembly (16) having an anvil assembly (24) and a cartridge assembly (26). The cartridge assembly (26) includes ridges (46) or protrusions (46) formed along peripheral walls of the cartridge assembly (26) to grip and stabilize tissue clamped between the anvil and cartridge assemblies (24,26). The ridges (46) serve as grippers to prevent the tissue from moving during staple formation in both the lateral and longitudinal directions. Improved staple formation can be achieved by stabilizing the tissue during staple formation.
Patent WO-2021159524-A1 (WO)
Title: Method, device and system for determining path loss
Inventor: CHEN ERKAI
IPC: H04W4/40
Filed: 2020-02-14
Abstract: Disclosed in the present application are a method, device and system for determining path loss, applicable to the fields of the Internet of vehicles, intelligent driving, intelligent connected vehicles, V2X, etc., and for use in determining sidelink path loss between two terminal devices. The method comprises: a first terminal device first sends a first reference signal to a second terminal device; the first terminal device obtains first filter power according to the transmit power of the first reference signal, and then can determine the path loss between the first terminal device and the second terminal device in combination with a second filter power indicated by the second terminal device. Because the first filter power is determined by the first terminal device according to the actual transmit power of the first reference signal, the path loss between the two terminal devices can be determined more accurately, so that the transmit power of the first terminal device can be subsequently controlled on the basis of the path loss, thereby reducing interference to other terminal devices or network devices while ensuring the communication quality, and improving the communication reliability.
Patent WO-2020173328-A1 (WO)
Inventor: CHEN YADONG
IPC: C07D417/04
Filed: 2020-02-18
Abstract: 一种吡咯类衍生物、其制备方法与应用，该化合物具有如通式(Ⅰ)所示的结构或其互变异构体、内消旋体、外消旋体、对映异构体、非对映异构体中一种或多种混合物，或其药学上可接受的盐，以此吡咯类衍生物作为活性组分的药物组合物在制备预防和/或治疗与BRD蛋白有关疾病的产品中的应用。
Patent WO-2020177767-A1 (WO)
Title: 基于电子地图的交通和旅行信息服务系统及方法
Inventor: XU YUEMING
IPC: G06F16/29
Filed: 2020-03-06
Abstract: 一种基于电子地图的交通和旅行信息服务系统，包括交通系统中心(1)、路侧单元、管理终端(2)和用户终端(4)；路侧单元包括管理路侧单元(31)和标识路侧单元；交通系统中心(1)分别与第三方平台(9)、管理终端(2)和用户终端(4)信号相连。用户终端(4)用于向交通系统中心(1)上传交通事件监测信息和用户终端请求；管理终端(2)用于向交通系统中心(1)上传交通事件监测信息、管理终端请求以及交通路况路径规划请求和映射请求；管理路侧单元(31)用于向交通系统中心上传(1)交通事件监测信息、接收管理终端(2)与用户终端(4)所发送的信息，并向管理终端(2)和用户终端(4)发送信息；还提供一种利用上述系统进行的基于电子地图的交通和旅行信息服务方法，能够确保交通和旅行畅通安全并改善用户体验。
Patent WO-2020187093-A1 (WO)
Inventor: ZHAO CHENGTAN
IPC: H01L27/15
Filed: 2020-03-10
Abstract: La présente invention concerne un substrat de circuit, son procédé de fabrication, et un substrat d'affichage à micro-diodes électroluminescentes. Le substrat de circuit comprend : un substrat, le substrat comprenant une pluralité de zones d'impression par transfert ; une pluralité de structures de collimation situées dans la pluralité de zones d'impression par transfert, chaque structure de collimation étant utilisée pour soutenir des diodes électroluminescentes sur les zones d'impression par transfert, de telle sorte que les diodes électroluminescentes soient dans un état collimaté pendant l'impression par transfert ; et une pluralité de structures de fixation situées dans la pluralité de zones d'impression par transfert, chaque structure de fixation étant utilisée pour fixer la diode électroluminescente correspondante dans la zone d'impression par transfert correspondant à la structure de fixation.
Patent WO-2020199882-A1 (WO)
Inventor: YANG SHUIGEN
IPC: H04W74/00
Filed: 2020-03-11
Abstract: Provided by the embodiments of the present application are a communication method, a device and equipment, wherein the method comprises: a network equipment receiving first information sent by a terminal equipment, wherein the first information is information for a two-step random access process of the terminal equipment; and the network equipment updating the random access configuration on the basis of the first information. Thus, communication reliability is improved.
Patent WO-2021008157-A1 (WO)
Title: 像素排布结构及显示面板
Inventor: LI JINKU
IPC: H01L27/32
Filed: 2020-03-19
Abstract: 本申请涉及一种像素排布结构及显示面板，包括一个或多个相同单元，每一相同单元包括至少一个像素组，所述像素组包括两个第一子像素、两个第二子像素及一个第三子像素，所述第一子像素和所述第二子像素的发光面积不同；所述像素组中，所述两个第一子像素和所述两个第二子像素环绕所述第三子像素排布，所述两个第一子像素沿第一方向排布于一排，所述两个第二子像素沿第一方向排布于另一排。
Patent WO-2020207316-A1 (WO)
Inventor: HE MING
IPC: G06F9/50
Filed: 2020-04-01
Abstract: A device resource configuration method, comprising: receiving a resource configuration information set sent by a server, the resource configuration information set comprising scenario category information of a user and corresponding resource configuration information (101); acquiring current state information of an electronic device, and identifying current scenario category information of the user according to the state information (102); matching the corresponding resource configuration information in the resource configuration information set according to the current scenario category information (103); and configuring the electronic device according to the resource configuration information (104).
Patent WO-2021103376-A1 (WO)
Inventor: WANG SHUNPING
IPC: C08G18/61
Filed: 2020-04-08
Abstract: Non-ionic waterborne polyurethane, which is prepared from the following components in parts by weight: 120 to 185 parts polyol; 30 to 40 parts diisocyanate; 0.3 to 0.6 parts of an antioxidant; 0.1 to 0.5 parts of an organometallic catalyst; 1 to 3 parts of an intramolecular crosslinking agent; 4 to 6 parts silicone oil; 2.1 to 5.5 parts of an auxiliary agent; 1 to 2 parts of a chain extender; and 600 to 750 parts water. The polyol comprises a polyether diol and a polyester diol, and the auxiliary agent comprises a wetting agent, a leveling agent and a defoamer. The non-ionic waterborne polyurethane has excellent water resistance, mechanical performance and compatibility. Moreover, there are no additions of organic solvent, and secondary pollution is not produced, so that the non-ionic waterborne polyurethane is environmentally friendly.
Patent WO-2020211802-A1 (WO)
Title: Vaccin sous-unitaire du virus de la peste porcine classique
Inventor: CHEN NING
IPC: C12N5/10
Filed: 2020-04-16
Abstract: L'invention concerne une protéine E2 du virus de la peste porcine (VPPC) classique de recombinaison comprenant au moins une mutation au niveau de l'épitope spécifiquement reconnue par l'anticorps monoclonal 6B8. En outre, la présente invention concerne une composition immunogène comprenant la protéine E2 recombinée de la présente invention et l'utilisation de la composition immunogène pour prévenir et/ou traiter des maladies associées à VPPC chez un animal. De plus, la présente invention concerne un procédé et un kit permettant de distinguer des animaux infectés par le VPPC d'animaux vaccinés avec la composition immunogène selon la présente invention.
Patent WO-2021203483-A1 (WO)
Inventor: CHEN XINGWU
IPC: G02F1/1343
Filed: 2020-04-21
Abstract: 本揭示实施例提供一种显示面板及显示装置，显示面板包括上下基板以及液晶层、第一电极、第二电极，第二电极还包括至少一主干电极和电极分支，主干电极将子像素区域划分为至少四个液晶畴区域，在每个液晶畴区域对应的子像素区域进行分割，形成一间隔结构，进而增加液晶畴的数目，提高光线透过率及显示质量。
Patent WO-2021128666-A1 (WO)
Title: 一种用于相控阵系统的集成微波光子收发前端
Inventor: ZHANG YU
IPC: H04B10/2575
Filed: 2020-04-22
Abstract: 本发明涉及微波技术和光电子技术领域，具体涉及一种用于相控阵系统的集成微波光子收发前端，包括陶瓷基板，在陶瓷基板上承载有控制集成电路、硅基光子集成芯片、第一放大芯片组、第二放大芯片组以及微波开关芯片组；所述控制集成电路通过输入的控制信号控制硅基光子集成芯片以及微波开关芯片组；所述硅基光子集成芯片的一端连接有输入/输出光纤，另一端连接有第一放大芯片组和第二放大芯片组；两个放大芯片组分别连接至所述微波开关芯片组，所述微波开关芯片组还连接有相控阵天线。本发明能够实现超宽带下的波束指向无偏斜，从而确保相控阵系统能够在更大的工作频段范围或更高的瞬时带宽下工作，同时具有较小的尺寸。
Patent WO-2021135002-A1 (WO)
Title: Device for installing retaining ring on shaft
Inventor: YANG YONGTAO
IPC: B23P19/02
Filed: 2020-04-27
Abstract: A device for installing a retaining ring on a shaft, comprising an expansion assembly. The expansion assembly comprises a housing (1); a cavity is formed in the housing (1); a pushing block (2) is movably fixed in the housing (1); two bilaterally symmetrical expansion members are provided on the front side of the pushing block (2); each expansion member is formed of movable portions (31) disposed in a front-rear direction, guide portions (32) disposed in a vertical direction, and expansion portions (33) disposed in the front-rear direction and located outside the housing; the housing (1) comprises an upper plate (11) and a lower plate (12); the front part of the lower plate (12) is provided with a first guide groove (13) running through from inside to outside and disposed in a left-right direction; the rear end of each movable portion (31) is rotatably fixed to the pushing block (2), and the front end of the movable part (31) is connected to a guide portion (32); each guide portion (32) extends downward into the first guide groove, and the lower end of the guide portion (32) passes through the first guide groove (13) to extend to the outside of the housing and is fixed to an expansion portion (33). The expansion members comprise a left expansion member (3) and a right expansion member (4); the pushing block (2) is fixed at the output end of a linear driving mechanism; under the action of the linear driving mechanism, the pushing block (2) moves forward to make the left expansion member (3) swing to the left and the right expansion member (4) swing to the right.
Patent WO-2021068503-A1 (WO)
Title: Method for automatically controlling traction speed of coal cutter on the basis of coal wall caving degree
Inventor: SI LEI
IPC: E21C35/24
Filed: 2020-05-11
Abstract: Disclosed is a method for automatically controlling the traction speed of a coal cutter on the basis of a coal wall caving degree, relating to the technical field of coal cutter control. The control method comprises: an image collection unit performing feature extraction on feature vectors, reflecting a coal wall caving degree, in an image to realize the online evaluation of the coal wall caving degree; generating a current control instruction for a coal cutter on the basis of an online evaluation result; and transmitting same to a machine-mounted control unit (6) of the coal cutter to realize the automatic adjustment of the traction speed of the coal cutter. The traction speed of a coal cutter is automatically adjusted on the basis of a coal wall caving degree; and when the coal wall caving degree is high, a coal output from a roller is reduced by means of reducing a traction speed, such that a sudden change of a load on a scraper conveyer caused by coal wall caving is relieved, thereby increasing the service life of a driving electric motor, reducing the volatility of a power grid in a mining area, and ensuring the production safety of a whole fully mechanized coal mining face.
Patent WO-2021189659-A1 (WO)
Inventor: FU ERKANG
IPC: H02J3/32
Filed: 2020-06-02
Abstract: The present application provides an energy control system and control method for a hybrid power supply system of a communication base station. The energy control system comprises a power grid, a diesel generator, a photovoltaic system, a lithium battery, a lead-acid battery, and a main controller. Both the power grid and the diesel generator are connected to an AC/DC rectifier by means of an automatic transfer switch; the AC/DC rectifier is connected to a system DC busbar; the diesel generator is connected to the system DC busbar by means of a DC/DC converter; the photovoltaic system is connected to the system DC busbar by means of an MPPT controller; both the lithium battery and the lead-acid battery are connected to the system DC busbar by means of a DC power flow distributor; the system DC busbar is connected to a load to supply power to the load; the main controller is used for achieving overall system operation control and adjusting output powers of the lithium battery, the lead-acid battery, and the diesel generator. According to the present application, the operation time of the diesel engine can be reduced, the lithium battery can be efficiently used, the remaining power of the lead-acid battery can be extracted, and power supply reliability can be improved.
Patent WO-2021189661-A1 (WO)
Inventor: GU HU
IPC: B01D71/02
Filed: 2020-06-04
Abstract: An Fe-Al-series metal film and a preparation method therefor, the method comprising the following steps: stirring and defoaming an Fe-Al-series metal powder and a water-based solvent to which an organic additive is added so as to obtain a tape casting slurry; tape casting a metal base layer having a desired thickness on a tape casting machine to obtain a uniform film layer, and drying same to obtain a film blank; and subjecting the dried film blank to degreasing, sintering and alloy phase ordering treatment, respectively, in a sintering furnace to prepare an Fe-Al-series metal film. The degreasing treatment refers to treatment for removing the organic additive. The Fe-Al-series metal film comprises a sintered Fe-Al metal powder film layer (1) and a sintered metal base layer (2), and the sintered Fe-Al metal powder film layer (1) is located above the sintered metal base layer (2).
Patent WO-2021114585-A1 (WO)
Inventor: LI LICHUN
IPC: G06F21/62
Filed: 2020-06-05
Abstract: A model training method and apparatus, and an electronic device. The method comprises: according to feature data, segmenting a sample identifier set into a plurality of subsets (S21); receiving a first gradient value ciphertext and a second gradient value ciphertext corresponding to sample identifiers (S23); in each of the subsets, homomorphically adding the first gradient value ciphertext of a plurality of sample identifiers to obtain a first feature value ciphertext of the subset, and homomorphically adding the second gradient value ciphertext of the plurality of sample identifiers to obtain a second feature value ciphertext of the subset (S25); masking the first feature value ciphertext and the second feature value ciphertext by using a random number to obtain a masked first feature value ciphertext and a masked second feature value ciphertext (S27); and sending, to a second party, the masked first feature value ciphertext and masked second feature value ciphertext corresponding to the subset, so as to train non-leaf nodes of a data processing model (S29). In the method, according to a homomorphic encryption algorithm, the feature value ciphertext is masked by using the random number, such that privacy protection of data during a multi-party cooperative modeling process can be enhanced.
Patent WO-2021036407-A1 (WO)
Inventor: ZHANG JUNWEI
IPC: H04N5/232
Filed: 2020-06-10
Abstract: The present disclosure relates to a communication method and apparatus, an electronic device, and a storage medium. The method comprises: acquiring a detection result obtained by performing target detection on an image frame; on the basis of the detection result and a current operation mode, generating a first data packet in a preset protocol format; and sending the first data packet to a lower computer such that the lower computer performs image collection on a current scene according to the first data packet.
Patent WO-2021109555-A1 (WO)
Title: 一种高压变频器变频切换工频的控制系统及控制方法
Inventor: HU SHUNQUAN
IPC: H02P27/00
Filed: 2020-06-26
Abstract: 一种高压变频器变频切换工频的控制系统及控制方法，包括高压变频器、输入接触器KM1、变频接触器KM3、工频接触器KM4和工频采样模块，其特征是所述高压变频器通过输入接触器KM1与电网相连接，高压变频器通过变频接触器KM3与电机相连接，电机通过工频接触器KM4与电网相连接，高压变频器通过工频采样模块采集工频电网电压的幅值、频率、相位和工频接触器KM4的电流；在不增加高压变频器输出电抗器的条件下，实现了电机变频切换工频电源不间断的控制过程；解决了变频转工频离线切换方式下对电机的冲击电流的问题，解决了变频转工频在线切换方式下需要增加电抗器的问题。
Patent WO-2020239136-A1 (WO)
Inventor: ZHAI YUN
IPC: C03C3/064
Filed: 2020-06-29
Abstract: The present invention relates to the field of sealing materials of fuel cells and secondary charging and discharging cells requiring isolation from a gas environment and the like, and relates to a preparation method for a high-efficiency sealant having an adjustable melting point. A sealant prepared according to the preparation method for the high-efficiency sealant having the adjustable melting point has the greatest advantage of the high purity, an operating temperature window can be as wide as -30-1115°C, the sealing performance is excellent, the melting point can be adjusted, the sealant can be applied in a variety of atmospheres and environments, the chemical stability is high, the service life is long, and the price is low. A device using the sealant as the sealing material has no leakage phenomenon for many years; the sealant is safe and reliable, and simple and effective in a programmed preparation solution, and the scale of production can be rapidly expanded.
Patent WO-2022000271-A1 (WO)
Inventor: ZHANG LILAN
IPC: H01M10/0567
Filed: 2020-06-30
Abstract: An electrolyte, containing a compound of formula (I), wherein any one of M 1  to M 5  is an M 7 -OLi group; at least one of M 1  to M 5  is an M 8 -CN group; the remaining M 1  to M 5  which are not the M 7 -OLi group and M 8 -CN group are each independently selected from hydrogen, a substituted or unsubstituted C 1-12  alkoxy, halogen, a substituted or unsubstituted C 1-12  alkyl, a substituted or unsubstituted C 2-12  alkenyl, a substituted or unsubstituted C 2-12  alkynyl, nitro, a sulfonic acid group, an aldehyde group, a carboxyl group, a silicon group, or a substituted or unsubstituted C 6-12  aryl, wherein when substituted, the substituent is halogen; and M 6 , M 7  and M 8  are each independently selected from a C 0-5  hydrocarbylene, and a C 1-5  hydrocarbylene substituted with halogen. Also provided are an electrochemical device and an electronic device. The electrolyte can provide good high-temperature storage performance for the electrochemical device.
Patent WO-2021258413-A1 (WO)
Inventor: LI QIUHONG
IPC: A62B9/06
Filed: 2020-06-30
Abstract: 一种口罩，包括口罩主体和口罩两侧的口罩固定带条，所述口罩固定带条由弹力布及水刺布复合而成，并折叠为叠层叠加形状。固定带的材料是利用弹力布具有较大的弹性及水刺布具有较大的强力的特性，使两种材料复合后的固定带即具有一定的弹性，又具有较大的强力，而在使用时不易拉断。同时提供所述口罩的制作工艺和装置，采用点连工艺及点连装置，利用点连针穿透材料后使点连针孔周边材料微融并压实，使固定带在口罩生产中不散落，达到固定带式口罩在工业化生产制作的目的。
Patent WO-2021012920-A1 (WO)
Title: 一种安装组件与电子设备
Inventor: CHEN HUAN
IPC: H01R13/46
Filed: 2020-07-01
Abstract: 本发明提供了一种安装组件与电子设备，涉及电能表技术领域。该电子设备包括电路模块，该安装组件包括金属片与安装座，金属片设置有插接部，当金属片安装于安装座时，插接部用于与电路模块插接。本发明提供了的安装组件与电子设备具有连接时更加方便，且连接更加稳固的优点。
Patent WO-2021008620-A1 (WO)
Inventor: LI XIN
IPC: F02M21/02
Filed: 2020-07-17
Abstract: A gas supply system employing two fuels for use in an ultra-large container ship. The system comprises: an LNG fuel tank disposed below deck; an engine room disposed below deck and located at the stern of the ship; and a fuel gas processing room disposed above deck. Fuels in the LNG fuel tank are transported to the fuel gas processing room for processing, and are transported to apparatuses that use gas in the engine room. The LNG fuel tank is disposed below deck, a design that comprehensively takes into account the influence of the LNG fuel tank on the stability of the ship, fire compartmentation and separation of hazardous areas, as well as convenience when laying out natural gas pipelines. Moreover, the internal space of the ultra-large container ship is fully utilized, and the maximum effective capacity thereof enables the ultra-large container ship to use LNG fuels for the entire route, or at least for one round trip on an established route.
Patent WO-2021013124-A1 (WO)
Inventor: HU WENPING
IPC: H04L12/861
Filed: 2020-07-20
Abstract: 本公开实施例公开了一种自动化测试资源管理的方法及装置，所述方法包括：定时检查是否存在空闲资源；当存在空闲资源时，将待分配资源的任务按照权重进行排序；计算所述空闲资源是否与权重最高的任务匹配；以及当匹配时，为所述权重最高的任务中优先级最高的子任务分配资源。
Patent WO-2021189727-A1 (WO)
Title: 一种远红外加热的自动式无烟烤炉
Inventor: CHEN HAOJIA
IPC: A47J37/06
Filed: 2020-07-21
Abstract: 一种远红外加热的自动式无烟烤炉，涉及无烟烤炉技术领域。该远红外加热的自动式无烟烤炉包括座体（1）、转动装置（2）、空气处理装置（3）以及冷却装置（4），红外加热器（111）位于第一腔体（100）上方，用于对第一腔体（100）加热，避免油脂、酱料等接触发热源而产生油烟；转动装置（2）设置于第二腔体（102）内，用于带动待烤制的食物翻转，以实现自动翻转食物的目的。空气处理装置（3）设置于第一腔体（100）的底部，且用于过滤第一腔体（100）内的空气，以进一步减少烟雾排放。冷却装置（4）设置于第一腔体（100）的底部，且与第三腔体（17）连通，以用于带动冷却水流经第三腔体（17）。以将第一腔体（100）底壁进行降温，避免油脂、酱料等接触到第一腔体（100）底壁时由于温度较高而产生油烟的几率。
Patent WO-2022007042-A1 (WO)
Inventor: SUN SHUYUAN
IPC: H04R1/20
Filed: 2020-07-28
Abstract: 本申请提供了一种汽车。该汽车包括具有收容空间的车门和设于车门内的车载声浪装置，车载声浪装置包括具有腔体的壳体以及收容于腔体内并与壳体固定的发声单元，发声单元将腔体分隔为导声前腔以及耦合后腔，壳体上设有与导声前腔连通且相互间隔的第一出声孔和第二出声孔，第一出声孔将导声前腔与车内空间连通，第二出声孔将导声前腔与车外空间连通。发声单元发出模拟跑车引擎声的声音能够经导声前腔、第一出声孔和第二出声孔传播到车内空间和车外空间，实现一个发声单元发出的声音能够同时传播到车内空间和车外空间，避免了在车外部轮廓上安装发声单元造成的成本和设计复杂度的增加，同时降低了实现模拟跑车引擎声的驾驶体验的难度。
Patent WO-2021052022-A1 (WO)
Title: Electrical cable vibration detection method and related product
Inventor: GAO FENGBO
IPC: G01P5/00
Filed: 2020-07-29
Abstract: An electrical cable vibration detection method, applied in a vibration detection device (100). The vibration detection device (100) comprises a camera apparatus (110) and an anemometer (120). The method comprises: the vibration detection device (100) captures an original video of an electrical cable to be tested (130) by means of the camera apparatus (110), and processes the original vibration video according to a preset video processing policy to obtain a target video having a motion amplification effect, the motion amplification effect indicates that the area where said electrical cable moves being amplified in the target video (S201); the vibration detection device (100) then determines reference vibration data of said electrical cable (130) according to the target video (S202); obtain wind speed information by means of the anemometer (120) (S203); determine whether the vibration state of said electrical cable (130) is abnormal according to the wind speed information and the reference vibration data (S204); and if it is determined that the vibration state of said electrical cable (130) is abnormal, output preset alarm information (S205). The method facilitates improving the convenience and high-efficiency of electrical cable vibration detection. Also disclosed is a vibration detection apparatus (600) for an electrical cable, a vibration detection device, and a computer readable storage medium.
Patent WO-2022036600-A1 (WO)
Inventor: XU YANG
IPC: H04W12/04
Filed: 2020-08-19
Abstract: 本申请公开了一种密钥更新方法、装置、设备及存储介质，属于通信技术领域。所述方法包括：核心网设备在第一组播业务组发生更新的情况下，向第一终端设备发送密钥更新消息，密钥更新消息用于更新第一终端设备在第一组播业务组中使用的安全密钥，第一组播业务组用于进行第一组播业务；第一终端设备根据密钥更新消息，更新安全密钥。本申请实施例丰富了组播业务对应的功能，保障了更新后的组播业务组中进行的组播业务的安全性，完善了组播业务的安全保障机制。
Patent WO-2021043102-A1 (WO)
Title: Drive circuit, driving method therefor, and display device
Inventor: XUAN MINGHUA
IPC: G09G3/32
Filed: 2020-08-31
Abstract: Disclosed are a drive circuit, a driving method therefor, and a display device. The drive circuit is configured to drive a device to be driven to work; the drive circuit and said device are connected in series between a first working voltage end (VL1) and a second working voltage end (VL2); the drive circuit is configured to control the formation of a current path between the first working voltage end (VL1) and the second working voltage end (VL2); the drive circuit comprises a drive sub-circuit, a writing sub-circuit, a compensation sub-circuit, and a gray-scale control sub-circuit, wherein the compensation sub-circuit is separately connected to the first working voltage end (VL1), a first scan signal end (G_A), a first node (N1), and a third node (N3) and is configured to compensate for the first node (N1) under the control of the first scan signal end (G_A) and the first working voltage end (VL1).