baber/WOPTO huggingface dataset:
Patent WO-2020098428-A1 (WO)
Inventor: XIAO BO
IPC: H04R9/06
Filed: 2019-10-11
Abstract: The utility model discloses a sound generating device, which comprises a basin stand, a magnetic circuit system and a vibration system, which are arranged in the basin stand, wherein the vibration system comprises folding rings arranged on the basin stand. The folding rings comprise a first folding ring on the basin stand and a second folding ring stacked on the first folding ring, the first folding ring comprises a first middle portion, a first edge portion surrounding the first middle portion and extending away from the first middle portion, and a first fixing portion surrounding the first edge portion and extending away from the first edge portion. The second folding ring comprises a second middle portion, a second edge portion surrounding the second middle portion and extending away from the second middle portion, and a second fixing portion surrounding the second edge portion and extending away from the second edge portion, and a closed cavity is formed between the first edge portion and the second edge portion. The sound generating device of the utility model provides a reasonable structure, the strong dual folding ring vibration system, good waterproof performance, a wide linear range of the vibration system, less total harmonic distortion of the sound generating device and good high-frequency performance under large amplitude conditions.
Patent WO-2020083100-A1 (WO)
Title: 一种发动机排放处理系统和方法
Inventor: TANG WANFU
IPC: B03C3/02
Filed: 2019-10-18
Abstract: 一种发动机排放处理系统，其特征在于，包括进气电离除尘系统、尾气电离除尘系统、尾气臭氧净化系统；所述尾气电离除尘系统包括尾气除尘系统入口、尾气除尘系统出口、尾气电场装置；所述尾气电场装置包括尾气电场装置入口、尾气电场装置出口、尾气除尘电场阴极(10212)和尾气除尘电场阳极(10211)，所述尾气除尘电场阴极(10212)和所述尾气除尘电场阳极(10211)用于产生尾气电离除尘电场；所述尾气电离除尘系统包括尾气均风装置(1023)；所述尾气臭氧净化系统包括反应场(202)，用于将臭氧流股与尾气流股混合反应。
Patent WO-2020078450-A1 (WO)
Inventor: QIN LEI
IPC: H04N21/466
Filed: 2019-10-18
Abstract: 本公开提出一种视频内容推送方法及装置，其中，该方法包括：当视频推荐服务的主用容灾系统出现故障时，启动备用容灾系统；接收应用客户端发送的视频访问请求，调用中间件中存储的按照预设比例从视频推荐服务的历史推荐视频中获取的第一历史视频内容；将第一历史视频内容推送给应用客户端进行播放。通过本公开的方法，解除了容灾对其他服务的依赖，使容灾方案更彻底，提高了视频内容推送的稳定性。
Patent WO-2020114127-A1 (WO)
Title: 低通匹配式大动态常数相位的数控衰减电路
Inventor: GAI CHUAN
IPC: H03H11/24
Filed: 2019-10-22
Abstract: 本发明公开了一种低通匹配式大动态常数相位的数控衰减电路，包括：输入节点和输出节点，输入节点和输出节点之间连接有参考路径和衰减路径，输入节点接收待衰减信号，输出节点输出衰减信号。本发明的有益效果为：（1）采用切换参考路径和衰减路径的电路架构，可以在满足高动态衰减范围的同时，实现常数相位特性；（2）非对称开关结构，串联电抗元件，构成低通匹配结构，可以在在较宽的频率范围内实现大动态高精度低插损低附加相移的特性；（3）采用改进的T型或者π型电阻网络，能够进一步提高衰减精度。
Patent WO-2021077376-A1 (WO)
Title: Novel environment-friendly paper bag body
Inventor: YAN JINWEI
IPC: B65D27/00
Filed: 2019-10-24
Abstract: An environment-friendly paper bag body, for use in packaging in logistics such as courier services and postal services. The bag body is composed of a planar structure (10), and the planar structure (10) comprises a first paper face (11) and an inner core layer (12) attached to the first paper face (11) and used for buffering protection; the inner core layer (12) comprises at least one layer of liner (120), and the liner (120) is a paper material in a shape of a plurality of uneven arrangements after being molded. The thickness of the liner of inner core layer is increased by means of the shape of uneven arrangements, the inner core layer has certain elasticity within the thickness range, and the protruding part bears pressure for buffering, thereby realizing the purpose of protecting an article. The liner is also made of a paper material, can be recycled, and does not pollute the environment.
Patent WO-2020244145-A1 (WO)
Title: 量子无线网络通信系统
Inventor: ZHOU ZHAOYU
IPC: H04W12/08
Filed: 2019-11-08
Abstract: 本发明公开了一种量子无线网络通信系统，由量子密钥管理堡垒主机、量子无线服务堡垒主机、移动终端构成。量子无线网络的通信通过量子密钥管理堡垒主机、移动终端和量子无线服务堡垒主机间的通信来完成。利用量子干线产生的一次一密乱码本，对量子无线密钥管理堡垒主机的主密钥进行更新；利用量子真随机数发生器产生的一次一密乱码本，对移动终端的密钥进行更新，以实现密钥更新过程无条件的安全性，实现高安全级别的移动终端漫游。为政府、大型企业等高价值用户提供安全性高的通信系统。
Patent WO-2020258656-A1 (WO)
Inventor: HOU LI
IPC: G06F8/30
Filed: 2019-11-12
Abstract: L'invention concerne un procédé et un appareil de génération de segment de code, un support d'informations et un dispositif informatique. Un procédé de génération de segment de code, consistant à : acquérir des informations d'exigence de génération de code, et appeler et afficher une interface de configuration de paramètre de code en fonction des informations d'exigence (S10) ; fournir, sur l'interface de configuration de paramètre de code, un module fonctionnel et un module de paramètre de code qui correspondent aux informations d'exigence (S20) ; recevoir une fonction de code sélectionnée par un utilisateur sur le module fonctionnel et un paramètre de traitement de code entré par l'utilisateur sur le module de paramètre de code, et générer un fichier de configuration en fonction de la fonction de code et du paramètre de traitement de code (S30) ; et lorsqu'une instruction de génération de code est reçue, lire la fonction de code dans le fichier de configuration ; appeler, à partir d'une base de données, des codes de couche inférieure associés à la fonction de code; et générer un segment de code cible à partir des codes de couche inférieure selon une règle du paramètre de traitement de code (S40 Ladite solution peut réaliser une personnalisation personnalisée d'un segment de code cible.
Patent WO-2021097805-A1 (WO)
Inventor: SHI GUOQI
IPC: B65G1/04
Filed: 2019-11-22
Abstract: A system and a method for separating and conveying objects (5), the system comprises: a separating mechanism (2) configured to separate objects (5); a robot (3) configured to grab and place the objects (5); a controller configured to alternately cause a first cart (C1) or a second cart (C2) loading with the objects (5) to be parked in a work place (W) of the separating mechanism (2), cause the separating mechanism (2) to separate the objects (5) placed on the cart, cause the robot (3) to grab an object separated from the plurality of objects (5) and place the grabbed object onto the conveyor (4) in response to a determination that the conveyor (4) is running during a period of time; and cause the robot (3) to grab an object separated from the plurality of objects (5) and place the grabbed object onto a station in response to a determination that the conveyor (4) ceases running.
Patent WO-2020114445-A1 (WO)
Inventor: ZHANG KAI
IPC: H04N19/50
Filed: 2019-12-05
Abstract: L'invention concerne un procédé de traitement vidéo. Le procédé consiste à effectuer un sous-échantillonnage sur des échantillons de chrominance et de luminance d'un bloc voisin du bloc vidéo actuel ; à déterminer, pour une conversion entre un bloc vidéo actuel d'une vidéo, qui est un bloc de chrominance, et une représentation codée de la vidéo, des paramètres de modèle linéaire à composante transversale (CCLM) sur la base des échantillons de chrominance et de luminance sous-échantillonnés obtenus par le sous-échantillonnage ; à appliquer le CCLM sur des échantillons de luminance situés dans un bloc de luminance correspondant au bloc vidéo actuel pour obtenir des valeurs de prédiction du bloc vidéo actuel ; à effectuer la conversion sur la base des valeurs de prédiction.
Patent WO-2020220702-A1 (WO)
Inventor: FU SHENG
IPC: G06F40/20
Filed: 2019-12-23
Abstract: The present application relates to the field of artificial intelligence, and disclosed is generation of a natural language. The method comprises: obtaining a target word comprised in content of a target instruction and a description word indicated by an environment element in an environment picture of the target instruction; invoking a natural language model on the basis of the target word and the description word to generate one or more initial natural statements according to a reference syntax, the natural language model being a language model trained according to a training data set; and obtaining a score of each initial natural statement, and selecting the natural statement meeting conditions as the natural language of the target instruction on the basis of the score of each initial natural statement.
Patent WO-2021004038-A1 (WO)
Title: Methods and systems for video stabilization
Inventor: WANG TINGNIAO
IPC: G06T5/00
Filed: 2019-12-30
Abstract: A method for video stabilization may include obtaining a target frame of a video; dividing a plurality of pixels of the target frame into a plurality of pixel groups; determining a plurality of first feature points in the target frame; determining first location information of the plurality of first feature points in the target frame; determining second location information of the plurality of first feature points in a frame prior to the target frame in the video; obtaining a global homography matrix; determining an offset of each of the plurality of first feature points; determining a fitting result based on the first location information and the offsets; for each of the plurality of pixel groups, determining a correction matrix; and for each of the plurality of pixel groups, processing the pixels in the pixel group based on the global homography matrix and the correction matrix.
Patent WO-2021134630-A1 (WO)
Inventor: FENG XIBAO
IPC: H04W24/02
Filed: 2019-12-31
Abstract: 本申请实施例公开了一种上行延迟调度方法、系统及存储介质，包括：接收AP发送的时间延迟触发帧；其中，所述时间延迟触发帧包括公共信息域，所述公共信息域包括第一预留字段，所述第一预留字段用于指示所述时间延迟触发帧是否包括从属公共信息触发的字段；当所述第一预留字段取值为第一值时，当第一位图字段取值为第二值时，所述第一内容信息列表携带所述第一上行数据延迟时间；解析所述时间延迟触发帧得到调度指示信息，并根据所述调度指示信息生成上行帧；在接收到所述时间延迟触发帧后间隔所述第一上行数据延迟时间发送所述上行帧至所述AP。采用上述手段，可实现远距离覆盖下的多用户上行发送时间对齐指示，还可以实现Trigger多个用户时分。
Patent WO-2020181951-A1 (WO)
Title: System and method for detecting and removing odor and bacteria from a sealed volume of an appliance using ozone
Inventor: YOON JE KWON
IPC: F24F3/16
Filed: 2020-02-13
Abstract: A method and a system are provided that include features for operating an appliance in an odor removal cycle. In one aspect, an appliance (200) has a housing (210) defining a sealable volume (212) and includes an ozone generator (232), an ozone detection device (234), and a controller (220). In an odor removal cycle, the controller (220) causes the ozone generator (232) to inject, at a predetermined injection interval, predefined dosages of ozone into the sealable volume (212) of the appliance (200). The controller (220) monitors the concentration level within the sealable volume (212) after each injection based on inputs received from the ozone detection device (234). The controller (220) ascertains when the concentration level reaches a maximum concentration level threshold, and when this occurs, the controller (220) can cease the injections and can activate one or more ozone removal devices (238).
Patent WO-2021159406-A1 (WO)
Title: Imaging lens, camera module and imaging device
Inventor: KATSURAGI DAIGO
IPC: G02B13/00
Filed: 2020-02-13
Abstract: An imaging lens includes a front group optical system disposed on an object side and a rear group optical system disposed on an imaging surface side, wherein the front group optical system includes at least one lens having a negative refractive power, the rear group optical system includes at least one lens having a positive refractive power, an aperture stop and at least one lens having a negative refractive power, the aperture stop being positioned on the imaging surface side with respect to a most object side positioned lens of the at least one lens having a positive refractive power, a most object side positioned lens being a lens having a negative refractive power and functioning as a lens protection filter, and a lens of the rear group optical system positioned on the most imaging surface side, has, on the imaging surface side, aspheric shape having an inflection point.
Patent WO-2021168687-A1 (WO)
Inventor: LI QIAOYU
IPC: H04W72/04
Filed: 2020-02-26
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a base station or a user equipment (UE), may identify one or more parameters associated with an interleaving pattern. The one or more parameters associated with the interleaving pattern may include at least one different interleaving parameter for different slots, one or more cyclic shifts of the interleaving pattern for one or more slots, or both. The wireless device may communicate one or more repetitions of data in accordance with the one or more parameters associated with the interleaving pattern. Additionally or alternatively, the wireless device may identify a type of an uplink payload for an uplink transmission. The wireless device may identify an interleaving pattern based on the type of the uplink payload. The wireless device may transmit the uplink transmission in accordance with the identified interleaving pattern.
Patent WO-2020215942-A1 (WO)
Inventor: LIU JINYE
IPC: A61B5/02
Filed: 2020-03-19
Abstract: 一种处理生理数据的方法（100）、装置（500、510、600）和存储介质。该方法（100）包括：获取用户的一个或多个生理数据（S101）；至少部分地基于基础赋值表，计算与一个或多个生理数据中的每个生理数据相对应的状态判断值（S102），至少部分地基于权重赋值表和状态判断值，计算用户的健康数据（S103）。
Patent WO-2021159595-A1 (WO)
Title: Method for controlling interface between solid-state electrolyte and metallic lithium negative electrode
Inventor: LIU ZHENG
IPC: H01M4/1395
Filed: 2020-03-28
Abstract: The present invention provides a method for controlling an interface between a solid-state electrolyte and a metallic lithium negative electrode, comprising the following steps of: S1) melting metallic lithium in an inert gas atmosphere; S2) adding an appropriate amount of a flux to the molten metallic lithium; S3) subjecting a solid-state electrolyte substrate to a polishing treatment; S4) placing the solid-state electrolyte onto a heating plate and heating; S5) coating the mixed melt evenly onto the solid-state electrolyte; S6) melting an aluminum foil into the mixed molten metal in good contact with the solid-state electrolyte; S7) controlling the thickness of metallic lithium, according to the amount of metallic lithium required for a battery cycle; and S8) cooling the product naturally to room temperature. The present invention achieves a cleaner lithium negative electrode and a higher battery efficiency by means of melting a trace amount of the flux and metallic lithium and coating the mixture onto the surface of the solid-state electrolyte, so as to achieve an infiltration effect on the solid-state electrolyte. In-situ SEI control on the surface layer of the solid-state electrolyte is achieved by adding a metallic aluminum foil.
Patent WO-2021008176-A1 (WO)
Inventor: LU HAILONG
IPC: F25B49/00
Filed: 2020-04-14
Abstract: A fault detection method and system for a water chilling unit, and a water chilling unit. The fault detection method for a water chilling unit comprises: obtaining fault operation data of a water chilling unit (S101); oversampling the fault operation data to obtain fault missing data (S102); establishing a fault characteristic parameter prediction model according to the fault operation data and the fault missing data (S103); and determining, according to the fault characteristic parameter prediction model, whether operation data of the water chilling unit is abnormal (S104). The fault detection method for the water chilling unit has an advantage of accurate and reliable detection. In addition, the occupation of the detection on resources can be effectively reduced, so that the implementation of the fault detection method in the water chilling unit is facilitated, and the reliability of the water chilling unit is improved.
Patent WO-2020221230-A1 (WO)
Title: Information processing method and apparatus
Inventor: ZHOU PINGDONG
IPC: G06F16/787
Filed: 2020-04-28
Abstract: Embodiments of the present application disclose an information processing method and apparatus. The method in a specific embodiment comprises: receiving an image viewing request sent by an image requesting device, wherein the image viewing request comprises geographical location information requested by the image requesting device; searching to determine whether an image providing device is present in a geographical location range determined on the basis of the geographical location information; and if one or more image providing devices are found, transmitting, to the image requesting device, an image captured by at least one image providing device of the one or more found image providing devices. According to embodiments of the application, a search for image providing devices can be carried out according to geographical location information uploaded by a user, so as to perform image transmission, thereby preventing the user from aimlessly screening video content, and enabling transmission of specific target images.
Patent WO-2020228538-A1 (WO)
Inventor: LI WANBING
IPC: H04N21/433
Filed: 2020-04-29
Abstract: 本公开提供了一种截图的方法和移动终端，该方法包括：确定目标视频在目标时刻的第一播放进度时间，目标时刻为监听到截图操作的时刻；播放目标视频中处于第一播放进度时间与第二播放进度时间之间的第一已播放视频，并在第一已播放视频的播放过程中进行截图，得到N张截图图片，第二播放进度时间对应的图像帧的首次播放时刻在目标时刻之前，N为大于或等于2的整数；若播放完第一已播放视频，则暂停播放目标视频，并监听第一保存操作；若监听到第一保存操作，则保存N张截图图片中由用户选择的截图图片，并删除N张截图图片中的其他截图图片。
Patent WO-2021073071-A1 (WO)
Title: Preparation method and application of ultra-high molecular weight polyethylene composite membrane
Inventor: WANG QINGZHAO
IPC: C08L23/06
Filed: 2020-05-07
Abstract: Disclosed are a preparation method and application of an ultra-high molecular weight polyethylene composite membrane. The preparation method comprises the following steps: (1) modifying ultra-high molecular weight polyethylene, specifically, after the ultra-high molecular weight polyethylene is blended with a modifier, making the ultra-high molecular weight polyethylene into granular modified ultra-high molecular weight polyethylene by means of melting; and (2) carrying out co-extrusion on the modified ultra-high molecular weight polyethylene with a thermoplastic elastomer material and/or a transition layer material to form a membrane. According to the size information of a high-altitude wind power blade, the composite membrane is attached manually or mechanically to the wind power blade, and hot-press welding is conducted on a joint after membrane attaching is completed. The composite membrane disclosed in the present invention can realize full-coating protection of the wind power blade, protects the wind power blade from being damaged by dirt and rain erosion during the service period thereof, and has good weather resistance.
Patent WO-2021128699-A1 (WO)
Title: 一种新型磁控溅射阴极
Inventor: HU LANG
IPC: C23C14/35
Filed: 2020-05-09
Abstract: 一种磁控溅射阴极，包括靶材（40）、第一磁体结构和第二磁体结构；第一磁体结构产生第一磁力线回路，形成第一磁场（60）；第二磁体结构产生第二磁力线回路，形成第二磁场（70,71）；当启动溅射时，第一磁场（60）作用使靶材（40）位于第一磁力线回路内的区域形成第一等离子区，第二磁场（70,71）作用使靶材（40）位于第二磁力线回路内的区域形成第二等离子区，实现溅射；第二等离子区和第一等离子区叠加区域不完全重合；通过在第一磁体结构的基础上叠加第二磁体结构，可以增大靶材（40）的溅射使用面积，溅射靶材（40）的溅射后表面形态可以由V形变成U形，靶材（40）的利用率可以从传统的20～25％增加到30～35％，提高靶材（40）的利用率。
Patent WO-2020244362-A1 (WO)
Title: 一种具有便携设备夹持功能的摄影云台及其应用
Inventor: MO XIAORONG
IPC: F16M11/04
Filed: 2020-05-14
Abstract: 一种具有便携设备夹持功能的摄影云台，包括：云台主体（1），云台主体（1）上活动设置有一夹持组件（20），夹持组件（20）能够活动至云台主体（1）的上方并形成用于夹持便携设备的夹持空间，云台主体（1）上设有能够部分或者全部容纳夹持组件（20）的容置空间，夹持组件（20）由容置空间内部伸出并活动至云台主体（1）上方，以将夹爪（22）与云台主体（1）之间用于夹紧便携设备的两个侧部，避免夹持组件（20）在不使用的状态下外露而占据储存空间。还涉及一种利用该摄影云台的摄影三脚架，该摄影三脚架具备夹持手机等便携设备的功能。
Patent WO-2021227009-A1 (WO)
Title: Enhanced uplink transmission in wireless communication
Inventor: YAO CHUNHAI
IPC: H04W72/04
Filed: 2020-05-15
Abstract: A user equipment (UE), or other network component can operate to configure different sets of resources including different sequence lengths for an uplink (UL) transmission via a UL channel. A first length or at least one of different second lengths can be selected to configure the UL transmission based on one or more conditions, which can include a coexisting radio access technology (RAT), a UE capability, an occupied channel bandwidth (OCB), the type of UL transmission or the like. The UL transmission can be based on at least one of: the first or the second sequence length such as for an initial access procedure based on the coexisting RAT and the OCB, for example.
Patent WO-2020238743-A1 (WO)
Inventor: ZHAO HAIBIN
IPC: D06F19/00
Filed: 2020-05-21
Abstract: A washing machine and a method for using a washing machine. The washing machine comprises: a plate base (11); an ultrasonic generator (4) disposed in the plate base (11) and movable between a cleaning position and an accommodated position, wherein the plate base (11) is provided with a casing (1) disposed within the plate base (11) to accommodate the ultrasonic generator (4); and a door member (2) capable of being opened or closed and disposed at a front portion of the casing (1). The ultrasonic generator (4) in the plate base (11) can move between the cleaning position and the accommodated position, thereby sufficiently utilizing the space within the plate base (11), and preventing the problem in which the ultrasonic generator (4) occupies an excessive volume and reduces available space within the plate base (11). In addition, the invention enables laundry immersed in a liquid to be in direct contact with an ultrasonic oscillator, thereby greatly reducing ultrasonic wave absorption and dissipation by soft laundry, and removing stains on the surface of the laundry as well as stubborn deep stains.
Patent WO-2021139073-A1 (WO)
Title: Organophosphorus compound flame retardant, and preparation method therefor and application thereof
Inventor: MENG FANXU
IPC: C08K5/5313
Filed: 2020-05-28
Abstract: Provided are an organophosphorus compound flame retardant, and a preparation method therefor and an application thereof. The organophosphorus compound flame retardant is obtained by dropwise adding at least one of a soluble salt of dialkyl hypophosphorous acid or a soluble salt of monoalkyl hypophosphorous acid and at least one of a soluble salt of alkyl phosphorous acid or a soluble salt of phosphorous acid into a non-halogen soluble salt solution of 2-4 valent metal and then performing a reaction, or dropwise adding at least one of dialkyl hypophosphorous acid or monoalkyl hypophosphorous acid and at least one of alkyl phosphorous acid or phosphorous acid into at least one of active metal oxides or metal hydroxides of 2-4 valent metals and then performing a reaction. The decomposition temperature of the obtained organophosphorus compound flame retardant is higher than or equal to 390°C, the temperature resistance and the application range of alkyl hypophosphite are improved; the organophosphorus compound flame retardant has good flame retardance and can be widely applied to the technical field of flame retardants, so that the flame retardance of polyester resin, polyamide resin, polyurethane, polyolefin materials or rubber is improved.
Patent WO-2021243523-A1 (WO)
Title: 一种全光谱用氮化物荧光粉及其制备方法
Inventor: ZHOU TIANLIANG
IPC: C09K11/59
Filed: 2020-06-01
Abstract: 一种全光谱用氮化物荧光粉及其制备方法，该荧光粉的化学式为Li  2-x-3m Cr  m Sr  2+x-n Eu  n Al  x Si  3-x N  6 ，其中，0<x<1，0<m<0.2，0<n<1。紫光激发下，荧光粉的发射光谱覆盖400～1100nm之间的可见光及近红外光谱范围。
Patent WO-2021051913-A1 (WO)
Inventor: DI QUN
IPC: G06F8/35
Filed: 2020-06-22
Abstract: 一种小程序生成方法以及装置，通过在接收到模板选择请求时，从模板数据库中选择目标模板，并通过接收针对所述目标模板的页面配置信息，根据所述页面配置信息对所述目标模板进行配置，可以快速地获得目标小程序。
Patent WO-2021004311-A1 (WO)
Inventor: SHAO CONG
IPC: G06F16/9537
Filed: 2020-06-29
Abstract: 一种用户界面信息展示方法、装置及电子设备，所述方法包括：接收针对目标页面的浏览请求，所述浏览请求中携带有用户所在的地理位置信息（S201）；根据所述地理位置信息与目标场所之间的位置关系，确定用户所处的场景特征（S202）；对用户在所述场景特征下浏览所述目标页面的需求的目标信息进行预测（S203）；根据预测结果确定所述目标页面的展示内容（S204）。通过此方法，能够帮助用户更方便地在目标场所中找到所需的商品，或者帮助用户进行购物决策。
Patent WO-2021248627-A1 (WO)
Inventor: GENG PENG
IPC: B60C11/16
Filed: 2020-07-16
Abstract: A snow tire, comprising a carcass (1). The carcass (1) comprises a tread (11) and shoulders (12) provided on both sides of the tread (11); a plurality of pattern block groups (2) are uniformly fixed to the tread (11) along a circumferential direction of the carcass (1); each pattern block group (2) comprises a first pattern block (21) and a second pattern block (22) provided at the center of the tread and distributed circumferentially along the carcass (1); the cross-sectional size of each first pattern block (21) is greater than that of each second pattern block (22); a plurality of third pattern blocks (23) fixed to the tread (11) are symmetrically provided on two sides of each first pattern block (21); a first tire stud (231) is integrally formed on the surface of each third pattern block (23), and a plurality of second studs (232) integrally formed together with the third pattern block (23) are provided around the first tire stud (231). The snow tire has long-term use stability, and allows passing on ice and snow road surfaces.