baber/WOPTO huggingface dataset:
Patent WO-2019075683-A1 (WO)
Title: Dental alveolus membrane
Inventor: CHEN JIUNN-LIANG
IPC: A61C8/00
Filed: 2017-10-19
Abstract: A dental alveolus membrane, comprising: a connecting portion (10), provided thereon with a through hole (11) for allowing an artificial tooth root (51) to pass through; a cover portion (20), having one end connected to the connecting portion (10) and having a plurality of openings (21); and a fixing portion (30), provided at the other end of the cover portion (20) and having at least one claw (31), the claw (31) having a pointed end for being fixed to bone tissue (52) or between bone tissue (52) and soft tissue (53). The connecting portion (10) and the fixing portion (30) located at two ends are both fixed, so that a bone graft (54) can be firmly fixed to a predetermined position thereof.
Patent WO-2019037270-A1 (WO)
Title: Multi-functional portable pet basket
Inventor: YU XIAODONG
IPC: A01K1/03
Filed: 2017-11-07
Abstract: A multi-functional portable pet basket comprises a basket main body (1), a carrying handle (2), a door (3), a soft cushion (4), a separation member (5), and a feeder support (6). The carrying handle (2) is provided at a top portion of the basket main body (1). The door (3) is provided at the basket main body (1). The soft cushion (4) is provided at a bottom surface of the basket main body (1). The feeder support (6) is provided at a side wall of the basket main body (1). The separation member (5) is provided between the feeder support (6) and the soft cushion (4). The pet basket has multiple functions because it can serve as a pet cage, a portable pet carrier, or a storage basket.
Patent WO-2018086548-A1 (WO)
Inventor: CHEN JUNHONG
IPC: G06F3/0481
Filed: 2017-11-09
Abstract: 一种界面显示方法及装置，用以解决现有技术中交互信息对虚拟形象进行遮挡的问题。所述方法包括：接收用户发送的消息，将所述消息显示在第一预设区域(S01)；当所述消息满足第一预设条件时，将所述消息移动至第二预设区域(S02)；其中，所述第一预设区域设置于第一组显示层中，所述第一组显示层包含至少一个所述第一预设区域，所述第二预设区域设置于第二组显示层中，所述第二组显示层包含至少一个所述第二预设区域；将所述各组显示层进行叠加和/或覆盖显示(S03)，所述各组显示层包含至少一个显示层。该方法使用户可以更好地通过虚拟形象的各种表情动作传达各种信息以丰富聊天内容，加强了用户间的沟通，提升了趣味性。
Patent WO-2018099302-A1 (WO)
Title: 一种链路处理方法以及链路处理设备
Inventor: HUANG ZEXU
IPC: H04L29/08
Filed: 2017-11-21
Abstract: 本申请实施例公开了一种链路处理方法以及链路处理设备，用于在VNF中进行链路处理设备的弹性伸缩时，不再给每个链路处理设备都均质化规划配置全量链路，有效的降低人工维护成本。本申请实施例方法包括：所述链路处理设备接收链路管理设备发送的链路迁移消息，所述链路迁移消息包括待迁移链路的信息，所述待迁移链路包含于所述VNF的当前链路；所述链路处理设备根据所述待迁移链路的信息确定所述待迁移链路；所述链路处理设备对所述待迁移链路进行迁移。
Patent WO-2018107959-A1 (WO)
Title: 矿井瞬变电磁三分量探测方法
Inventor: YU JINGCUN
IPC: G01V3/28
Filed: 2017-11-28
Abstract: 一种矿井瞬变电磁三分量探测方法，根据煤矿地质特点，调整瞬变电磁激发方式和接收方式，测量方式的不同，会使低阻体切割磁场线的数量将有很大差别，导致产生的二次场强弱有很大不同。通过采用三组接收线圈，将接收线圈置于三个互相垂直的方向，其中一组接收线圈与发射线圈按重叠回线装置布设，实现了一次发射接收所有方向响应数据。在井下巷道迎头位置，变换发射与接收线圈角度可实现扇形扫描获得更为丰富的电磁响应，进而更为准确地判断地层富含水区域。
Patent WO-2019006977-A1 (WO)
Title: Multiflux microfluidic chip based on active control on liquid flowing
Inventor: XU XINGSHANG
IPC: B01L3/00
Filed: 2017-12-06
Abstract: A multiflux microfluidic chip based on active control on liquid flowing, comprising a chip body. The chip body comprises a liquid inlet chamber, reaction-quantification chambers (11), a liquid path split-flow chamber, and a waste liquid chamber; the liquid inlet chamber can be communicated with an externally connected air path, and the liquid path split-flow chamber is provided at a middle position of the chip body; there are two or more reaction-quantification chambers (11), which are distributed at two sides of the liquid path split-flow chamber in rows, i.e., a first row of reaction-quantification chambers and a second row of reaction-quantification chambers; each reaction-quantification chamber is communicated with a liquid outlet of the liquid path split-flow chamber by means of respective liquid path split-flow branch, and a liquid inlet of the liquid path split-flow chamber can respectively be communicated with a liquid outlet of the liquid inlet chamber and an externally connected liquid path.
Patent WO-2018121550-A1 (WO)
Inventor: XU HENG
IPC: C07D401/14
Filed: 2017-12-26
Abstract: The present invention relates to a quinazoline compound and a preparation method, an application, and a pharmaceutical compostion thereof. The present quinazoline compound is represented by the formula (I), is a phosphatidylinositol 3-kinase (PI3K) inhibitor, and can be used for preventing and/or treating diseases related to PI3K activity, such as cancer, immunological disease, cardiovascular disease, viral infection, inflammation, metabolic/endocrine function disorders or neurological disease.
Patent WO-2019100563-A1 (WO)
Inventor: ZHAO ZIFANG
IPC: A61B5/366
Filed: 2018-01-12
Abstract: 一种心电信号质量评估方法，所述方法包括：接收对心电监测设备输出的心电监测数据进行处理得到的心搏分析数据(110)；提取心搏分析数据中QRS波群的位置信息和宽度信息(120)；提取相邻两个QRS波群信号之间的RR间期的信号(130)；对RR间期信号进行QRS波群信号消除处理，得到去除QRS波群信号的RR间期信号(140)；对去除QRS波群信号的RR间期信号进行滤波处理，并对滤波处理后的信号进行包络计算，得到去除QRS波群信号的RR间期信号的噪声信号的平均功率(150)；根据噪声信号的平均功率和所述QRS波群信号的功率得到信号质量评价参数(160)。通过本方法，能够准确估计心电检测信号质量，为心电图自动分析提供准确有效的信号质量评价。
Patent WO-2018141277-A1 (WO)
Inventor: PANTELEEV PAVEL ANATOLYEVICH
IPC: H03M13/05
Filed: 2018-02-03
Abstract: A method and system for offset lifting is provided. In an embodiment, a method for encoding data includes receiving a K-bit source word input. The method also includes encoding the K-bit source word input according to a LDPC code, a lifting function, and a circulant size offset to generate an N-bit code word output. The circulant size and lifting function are determined according to an information length, a code rate, and a decoder. The method also includes storing the N-bit code word output in input/output memory.
Patent WO-2018141293-A1 (WO)
Title: Procédé et appareil de communication
Inventor: LEE CHONG-YOU
IPC: H03M13/11
Filed: 2018-02-05
Abstract: La présente invention concerne, selon certains aspects, un appareil qui comprend un circuit émetteur-récepteur et un circuit de traitement. Le circuit émetteur-récepteur est configuré de sorte à émettre des signaux sans fil. Le circuit de traitement est configuré de sorte à coder un ensemble de bits d'information à l'aide d'un code qui est configuré pour une redondance incrémentale afin de générer un mot de code qui comprend les bits d'information et des bits de parité, à mettre en tampon le mot de code dans un tampon circulaire, à déterminer une position de départ dans le tampon circulaire sur la base d'une version de redondance qui est sélectionnée parmi une pluralité de versions de redondance sur la base d'une évaluation de scénario d'une émission précédente, associée à l'ensemble des bits d'informations, et à émettre, par l'intermédiaire du circuit émetteur-récepteur, une partie sélectionnée du mot de code à partir de la position de départ.
Patent WO-2019127876-A1 (WO)
Inventor: JIAO ZHENFENG
IPC: H04B7/185
Filed: 2018-02-13
Abstract: Provided in the present invention is a satellite communication device, comprising a satellite communication main body, a reflective layer, and a solar thin-film cell. The satellite communication main body comprises an antenna for reflecting and focusing a detected satellite signal, and the antenna has a parabolic reflection surface. A satellite communication module, a main controller, and an energy storage module are provided within the satellite communication main body. The main controller comprises a charging-discharging control module for controlling input and output of electrical energy. The reflective layer covers the parabolic reflection surface of the antenna. The solar thin-film cell covers the reflective layer. Also provided is a manufacturing method of a satellite communication device. The present invention realizes a self-powered portable satellite communication antenna by coating the reflective layer and the solar thin-film on the reflection surface of the satellite antenna. Furthermore, the invention adds the charging-discharging control module and the energy storage module to ensure high operational reliability of the satellite communication device in an emergency.
Patent WO-2018157827-A1 (WO)
Title: 一种动态人眼跟踪的虹膜采集装置、动态人眼跟踪的虹膜识别装置及方法
Inventor: FERNANDES TOMAS
IPC: G06K9/00
Filed: 2018-02-28
Abstract: 一种动态人眼跟踪的虹膜识别装置及方法，该装置包括处理器（110）、虹膜图像传感器（120）、虹膜编码识别模组（130）、测距装置（140）、滑动装置（150）、转动装置（160）、载物台（180）以及多个图像采集装置（170）。虹膜图像传感器（120）设置于转动装置（160）以随转动装置（160）的转动而转动。虹膜图像传感器（120）、虹膜编码识别模组（130）以及转动装置（160）安装于载物台（180）上，载物台（180）设置于滑动装置（150）以随滑动装置（150）的移动而移动。该装置通过转动装置（160）及滑动装置（150）主动式地调整虹膜图像传感器（120）以跟踪用户眼睛。
Patent WO-2018161835-A1 (WO)
Title: Agencement d'ouvertures d'un dispositif de mémoire tridimensionnel
Inventor: HE JIA
IPC: H01L27/11524
Filed: 2018-03-01
Abstract: La présente invention concerne des dispositifs à semi-conducteurs et des procédés de production des dispositifs à semi-conducteurs. Un procédé de formation d'ouvertures de dispositif comprend la formation d'une couche de matériau (600) sur une première région (I) et sur une seconde région (II) d'un substrat (200), la première région (I) étant adjacente à la seconde région (II), la formation d'une couche de masque (500) sur la couche de matériau (600), la couche de masque (500) recouvrant la première région (I) et la seconde région (II), et la formation d'une couche de formation de motifs (101) sur la couche de masque (500). La couche de formation de motifs (101) recouvre la première région (I) et la seconde région (II) et comprend des ouvertures correspondant à la première région (I). La pluralité d'ouvertures comprend une première ouverture (110), adjacente à une limite entre la première région (I) et la seconde région (II), et une seconde ouverture (120), éloignée de la limite. Une taille de la première ouverture (110) est supérieure à une taille de la seconde ouverture (120) le long d'un plan parallèle à une surface supérieure du substrat (200).
Patent WO-2018171599-A1 (WO)
Inventor: WANG MAN
IPC: H04L1/18
Filed: 2018-03-21
Abstract: Provided in the present application are a data transmission method and network-side node advantageous in improving reliability of data transmission between network-side nodes. The method comprises: a first network-side node receiving at least one data packet from a second network-side node; the first network-side node transmitting, according to the at least one data packet, reception information to the second network-side node, wherein the at least one data packet and unreceived data packets are radio resource control (RRC) data packets, and/or the at least one data packet and unreceived data packets are data packets transmitted through a signaling radio bearer (SRB), and/or the at least one data packet and unreceived data packets are data packets of a first terminal device.
Patent WO-2019183978-A1 (WO)
Title: Technologies for content delivery network with multi-access edge computing
Inventor: YU YIFAN
IPC: H04L29/00
Filed: 2018-03-31
Abstract: Technologies for mobile content delivery include an edge computing device, a mobile terminal, and a content delivery network server. The edge computing device has a network location between the mobile terminal and a core network, and the content delivery network server is accessed through the core network. The edge computing device receives a content request from the mobile terminal and modifies the content request to identify the network location of a zone-specific proxy of the edge computing device. The edge computing device forwards the content response to the content delivery network server. The content delivery network server may send a content response to the zone-specific proxy or the mobile terminal. The content response identifies an address of a network content resource. The network content resource is located at a surrogate content delivery network server of the edge computing device. Other embodiments are described and claimed.
Patent WO-2019195967-A1 (WO)
Title: Paging method, network device and terminal device
Inventor: LIU JIANHUA
IPC: H04W68/02
Filed: 2018-04-08
Abstract: Provided in the embodiments of the present application are a paging method, a network device and a terminal device, the method comprising: when a second network device determines that downlink data of a terminal device arrives, a first network device sends a first paging message to the terminal device, the first paging message being used to page the terminal device for the second network device, wherein the first network device is a network device in a first network, the second network device is a network device in a second network, and the first network and the second network are different networks among a plurality of networks registered by the terminal device.
Patent WO-2018214661-A1 (WO)
Inventor: WONG WAI KEUNG
IPC: G01N21/892
Filed: 2018-04-11
Abstract: 本发明公开了一种织物疵点自动检测方法和系统，该方法包括：通过噪声清除设备在织物传输过程中对待检测织物区域做预处理，消除检测过程中的噪声干扰；根据验布机的滚轮电机的转动信息，触发摄像头对待检测织物进行图像采集；以及基于采集的图像，自动识别待检测织物上的疵点。本发明的方法和系统可有效解决人工织物疵点检测面临的准确率低、漏检率高和强度大等问题，有效提高疵点检测的准确率。
Patent WO-2018210150-A1 (WO)
Title: 触控基板、制作触控基板的方法和显示装置
Inventor: XIE XIAODONG
IPC: G06F3/044
Filed: 2018-05-07
Abstract: 本公开提供了一种触控基板、一种制作触控基板的方法和一种显示装置。该触控基板包括衬底和位于衬底上彼此间隔的多个触控单元。该多个触控单元排列成若干行和若干列。该多个触控单元中的每一个包括交叉布置并绝缘间隔的第一电极和第二电极。若干列之一中相邻的触控单元的第一电极通过第一信号线相连，并且若干行之一中相邻的触控单元的第二电极通过第二信号线相连。 [图2]
Patent WO-2019232733-A1 (WO)
Title: Bidirectional projection- and voice-enabled translation apparatus
Inventor: ZHAO HUI
IPC: G03B21/00
Filed: 2018-06-07
Abstract: A bidirectional projection- and voice-enabled translation apparatus comprises: an upper casing, a main casing, and a lower casing. The upper casing comprises a casing support frame and a cover panel. Two projectors, multiple microphone devices, an upper control board, a fan, and a heat dissipation module are installed within the casing support frame. Two structural openings for the projectors are symmetrically provided on an exterior of the casing support frame at two sides. Images projected by the two projectors are projected through the structural openings for the projectors. Multiple microphone sound transmission holes are provided at the exterior of the casing support frame. The fan and the heat dissipation module are further installed within the casing support frame to provide heat dissipation to the projectors. The cover panel consists of a display device and a touch device. The cover panel is connected to the upper control board, and the touch device controls the upper control board, so as to realize control over the projectors and output an imaging result. The upper casing, the main casing, and the lower casing are sequentially assembled and connected to form the bidirectional projection- and voice-enabled translation apparatus.
Patent WO-2018228491-A1 (WO)
Inventor: PENG JINLIN
IPC: H04W72/04
Filed: 2018-06-14
Abstract: Selon certains modes de réalisation, la présente invention concerne une technologie de planification. Dans un procédé de planification, un premier dispositif configure des paramètres de détection aveugle d'un canal de commande selon un type de porteuse ou un groupe de porteuses, ou configure respectivement des cycles de détection aveugle pour différentes porteuses, ou configure des cycles de détection aveugle pour un USS et un CSS du canal de commande, configure des cycles de détection aveugle pour différentes informations de commande de liaison descendante (DCI), puis envoie une signalisation de configuration transportant les paramètres de détection aveugle (qui peuvent comprendre les cycles de détection aveugle), les paramètres de détection aveugle étant utilisés pour un second dispositif pour effectuer une détection aveugle sur le canal de commande. Ou dans un scénario de planification inter-porteuse dans lequel un canal de commande d'une seconde porteuse est transmis au moyen d'une première porteuse, le premier dispositif transmet le canal de commande de la seconde porteuse dans au moins une première unité de temps de transmission cible, la première unité de temps de transmission cible étant une première unité de temps de transmission, utilisée pour transmettre le canal de commande de la seconde porteuse, dans M premières unités de temps de transmission.
Patent WO-2018233683-A1 (WO)
Title: Systems, devices, and methods for packet data convergence protocol packet data unit duplication
Inventor: TSENG YUNG-LAN
IPC: H04L5/00
Filed: 2018-06-22
Abstract: A method for a user equipment (UE) to deliver one or more duplicate packet data convergence protocol (PDCP) packets of a radio bearer is described. The method comprises selecting at least one physical radio resource block on one or more allowed serving cells to deliver the one or more duplicate PDCP packets after receiving an activation message of packet duplication to activate at least one logical channel corresponding to the radio bearer to deliver the one or more duplicate PDCP packets. The method also comprises stopping applying the one or more allowed serving cells to the at least one logical channel when receiving a deactivation message of packet duplication.
Patent WO-2019109632-A1 (WO)
Title: 一种通信方法和装置
Inventor: SHEN ZUKANG
IPC: H04W72/04
Filed: 2018-07-02
Abstract: 本发明实施例提供了一种通信方法和装置。该方法中，终端设备确定物理上行控制信道的资源。所述物理上行控制信道承载第一编码比特序列和第二编码比特序列，所述第一编码比特序列对应于第一上行控制信息，所述第二编码比特序列对应于第二上行控制信息。所述物理上行控制信道的资源包含N个正交频分复用OFDM符号集合，所述OFDM符号集合中每一个包含1个或多个OFDM符号，所述第一编码比特序列承载在j个OFDM符号集合包括的OFDM符号上，所述j个OFDM符号集合为N个正交频分复用OFDM符号集合的部分集合或全部集合，所述N为正整数，j为小于或等于N的正整数。终端设备在所述物理上行控制信道的资源上发送基于所述第一上行控制信息和所述第二上行控制信息生成的信号。
Patent WO-2019232904-A1 (WO)
Inventor: ZHANG PENGJU
IPC: H01L31/046
Filed: 2018-08-01
Abstract: 一种太阳能电池及其制备方法。该太阳能电池包括：衬底基板；电极层组，位于衬底基板的表面，该电极层组包括第一电极和第二电极，第一电极与第二电极之间电绝缘；光电层，位于电极层组背离衬底基板的一侧且与第一电极电连接，该光电层中设有第一过孔，第一过孔的位置与第二电极的位置相对应；窗口层，位于光电层背离衬底基板的一侧且通过第一过孔与第二电极电连接。
Patent WO-2019034109-A1 (WO)
Title: Method and device for storing video data, and smart glasses
Inventor: WU ZHIQUN
IPC: H04N21/433
Filed: 2018-08-16
Abstract: Provided in the present application are a method and device for storing video data applied to smart glasses. The method comprises: receiving a video recording instruction of a first user; recording video data according to the video recording instruction; and storing the video data to a first target storage path, wherein the first target storage path is a path generated by the smart glasses for the first user to store the video data recorded by the first user after the first user logs into an application of a mobile terminal that can be paired with the smart glasses. The present application stores video data to a storage path for a first user at a smart glasses side, such that video data recorded by different users logged into an application of a mobile terminal paired with the smart glasses can be stored independently at the smart glasses side, and each user can only manage the video data they capture, thereby enabling limited access authority to video data captured by different users of an application of a paired mobile terminal at a smart glasses side, preventing user privacy leakage.
Patent WO-2019037767-A1 (WO)
Title: Soluble needle for hair transplantation and manufacture method thereof
Inventor: SULAIMAN ABDULMOHSIN A ALMALAQ
IPC: A61B17/00
Filed: 2018-08-24
Abstract: A soluble needle (100) for hair transplantation, wherein the soluble needle (100) comprises a fixing plate (30) and a plurality of micro-needles (20) made of water-soluble polymers arranged on the fixing plate (30), wherein each of said micro-needle (20) comprises a needle wall (21) to penetrate scalps and a needle cavity (22) confined by the needle wall (21) and configured for accommodating a hair follicle. A method of manufacturing a soluble needle (100) for hair transplantation, wherein the method includes: dissolving water-soluble polymers in water to prepare a molding solution (S101); delivering the molding solution into a mold (S102); letting the molding solution settle in the mold to shape (S103); and separating and removing the mold to produce the soluble needle (S104). The soluble needle (100) effectively shortens the time of surgery, reduces the pain of the patients, and increases the viability rate of transplanted hair follicles.
Patent WO-2019210627-A1 (WO)
Title: High-precision fast chip taking and loading device and chip loading machine using same
Inventor: WANG CHI
IPC: H01L21/67
Filed: 2018-08-27
Abstract: The present invention provides a high-precision fast chip taking and loading device, comprising a wafer platform and a chip bearing platform. The wafer platform is used for placing a wafer, and the chip bearing platform is used for placing a chip bearing substrate; a rotation driving means is provided at an intermediate position between the wafer platform and the chip bearing platform, and the rotation driving means is connected to and provided with a turret so as to drive the turret to achieve 360° rotation in a horizontal direction; at least three suction nozzles are provided at equal intervals along the circumferential direction of the turret for use to take a chip from the wafer and place the chip on the wafer; a vertical motion driving means is provided for driving the suction nozzles to move up and down in a vertical direction. The structure of the present invention is reasonable, the response of the whole device is fast, and the chip loading efficiency and the chip loading yield are improved.
Patent WO-2020006853-A1 (WO)
Inventor: TU SHENGXIAN
IPC: A61B5/02
Filed: 2018-09-03
Abstract: 血管压力差修正方法，包括：沿第一血管（100）主轴方向，以第一血管（100）与第二血管（200）的近端分界点为第二端点，以分叉嵴点（500）为第一端点，获取第一端点与第二端点间的多个血管截面；血管截面在第一血管管壁（102）和第二血管管壁（202）上形成轮廓线；血管截面在第一血管管壁（102）上形成的轮廓线围成多个第一血管截面；血管截面在第二血管管壁（202）上形成的轮廓线围成多个第二血管凸面（401，402，403）；第一血管截面与第二血管凸面（301，302，303）相交形成多条相交线（601，602，603）；将多条相交线（601，602，603）拟合成相交面（600）；根据相交面（600）计算获得切割平面（700）的面积，切割平面（700）是过分叉嵴点（500）垂直于第二血管中心线（400）的第二血管截面，用切割平面（700）的面积对血管压力差进行修正。
Patent WO-2019047929-A1 (WO)
Title: Fire rated radio frequency cable
Inventor: ELSAADANI ASAAD
IPC: H01B7/295
Filed: 2018-09-07
Abstract: A coaxial cable (10) is provided that includes an outer barrier (12, 14, 16) that seals the coaxial cable (10)from air and protects the cable's conductors (18, 20) from oxidation in a fire. Such an outer protective barrier (12, 14, 16) may include a fire retardant tape. A dielectric (22) separates the conductors (18, 20)and may comprise a ceramic (23) embedded in a dielectric material (25), or ceramic beads (110, 53)in a braided ceramic mesh(120, 55).
Patent WO-2020037753-A1 (WO)
Title: Log printing method and system, server
Inventor: CHEN QINGLONG
IPC: G06F3/12
Filed: 2018-09-20
Abstract: A log printing method, comprising the following steps: configuring a log sampling ratio and a log level for an application (S201); after the application receives a service request, determining whether to print all logs and cache a sampling flag according to the log sampling ratio (S202); reading the sampling flag and the log level during the processing of the application to the service request (S203); when the read sampling flag is "not sample", the application processing the service request and printing logs with a log level equal to and higher than the configured log level and corresponding to the service request (S204); and when the read print flag is "sample", the application processing the service request and printing all logs corresponding to the service request (S205). A log printing system and a server are further provided. The log print volume can be reduced without affecting the location to the cause of the exception.
Patent WO-2019080691-A1 (WO)
Title: Electrically operated valve
Inventor: LV MING
IPC: F16K31/02
Filed: 2018-09-28
Abstract: An electrically operated valve, comprising a valve body component (40), a drive component (30) and a nut sleeve piece (50). The drive component comprises a magnetic rotor (34), a screw rod (31) and a nut (32), the magnetic rotor being arranged in an inner cavity of a valve cover body (42), the screw rod being threadedly connected to the nut, the screw rod being incapable of movement in the axial direction with respect to a valve body (41). The nut sleeve piece comprises a first limiting portion (51) which limits rotation of the nut in the circumferential direction, the cross-section of the first limiting portion being non-circular. The present invention has a compact structure, which helps to reduce the size of the electrically operated valve.