baber/WOPTO huggingface dataset:
Patent WO-2020259503-A1 (WO)
Inventor: YUAN SHILIN
IPC: G06K9/00
Filed: 2020-06-23
Abstract: A display device is disclosed. The display device includes a first substrate, a photosensitive layer, a liquid crystal layer, a second substrate, and a collimation layer that are stacked successively. The photosensitive layer comprises a plurality of photosensitive units. The second substrate comprises a plurality of display units and a shutter layer having a plurality of first holes, any adjacent two of the display units are spaced by the shutter layer, andone of the first holes is located between any adjacent two different ones of the display units. The collimation layer comprises a plurality of collimators, each of the plurality of collimators defines a second hole communicated with a corresponding one of the first holes and facing a corresponding one of the photosensitive units, and a light signal passes through thesecond hole and the corresponding one of the first holes and reaches the corresponding one photosensitive unit.
Patent WO-2021027409-A1 (WO)
Inventor: LI TAOYONG
IPC: H01L31/18
Filed: 2020-06-29
Abstract: A high-water resistance HJT photovoltaic cell, a surface of the HJT photovoltaic cell being covered with a polyhedral oligomeric silsesquioxane (POSS) modified polymer film, there being a layer of silicon dioxide thin film at an outer part of the POSS modified polymer film. The silicon dioxide thin film being obtained by means of a reaction between atomic oxygen and the POSS modified polymer film.
Patent WO-2021000848-A1 (WO)
Inventor: DU ZONGPENG
IPC: H04L45/50
Filed: 2020-06-30
Abstract: 本申请实施例公开了一种报文转发方法，头节点，例如不属于第一域的第一网络设备，可以接收第二网络设备发送的段标识，该段标识可以用于指示第二网络设备能够提供由第二网络设备到达第一域中网络设备的第一转发路径。第一网络设备获得报文之后，可以根据该段标识生成转发该报文的、经过前述第一域的第二转发路径对应的段标识列表，并基于该段标识列表向第二网络设备转发报文，该第二转发路径对应的段标识列表中包括该段标识。由于第二网络设备具备提供从第二网络设备到达第一域中的网络设备的第一转发路径的能力，因此，将该报文转发给第二网络设备之后，第二网络设备可以根据段标识列表中携带的段标识，根据第一转发路径在第一域中转发该报文。
Patent WO-2021196436-A1 (WO)
Title: 烟包在线检测及剔除结果显示方法
Inventor: WU ZHUFENG
IPC: G06Q10/06
Filed: 2020-07-01
Abstract: 一种烟包在线检测及剔除结果显示方法，包括以下操作步骤：步骤一：次品类型分类：将烟包在检测过程中所有可能出现的次品原因全部罗列出来，并记录到IPC控制系统中；步骤二：次品编号：分别对每个次品原因编排序号，并与IPC中一致的次品原因关联；步骤三：点位设置：传送带上各个点位顺次排列，IPC显示与传送带一致的点位；步骤四：烟包检测；步骤五：次品依编号区别显示：当检测到次品时，IPC直接显示次品原因的编号以及次品所在点位。本发明分别用不同的数字代表不同的剔除情况，当设备发生剔除时，操作人员能直观的看出什么情况造成的次品剔除，方便查询、检修设备，给上游生产提供即时数据。
Patent WO-2021073181-A1 (WO)
Inventor: RAN KUN
IPC: H04N5/225
Filed: 2020-07-16
Abstract: The present application provides a camera module and a mobile terminal. The camera module comprises a circuit board, an image sensor is fixed on the circuit board, and the image sensor is electrically connected to the circuit board; the camera module further comprises a cover for sealing the image sensor; and the cover comprises a support and a filter. The support is a housing structure, is provided around the image sensor, and is connected to the circuit board in a sealed manner; a mounting hole is provided on the support, and the side wall of the filter is connected to the side wall of the mounting hole in an adhered manner. It can be determined from the description above that, in the embodiments of the present application, the support covers the image sensor and is connected to the circuit board in a sealed manner, and the filter is fixed on the support; compared with the solution in the prior art, the cover is not in contact with the image sensor, and thus cannot contaminate the image sensor; in addition, the filter is assembled with the support to form the cover and then fitted to the circuit board, facilitating assembly, and reducing the height of the camera module.
Patent WO-2021013083-A1 (WO)
Title: Tricyclic compounds as hpk1 inhibitor and the use thereof
Inventor: LI JING
IPC: A61K31/407
Filed: 2020-07-17
Abstract: Disclosed herein is a tricyclic compound of Formula (I), or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and pharmaceutical compositions comprising thereof. Also disclosed is a method of treating HPK1 related disorders or diseases by using the compound disclosed herein.
Patent WO-2021004548-A1 (WO)
Inventor: YANG LEI
IPC: G06K9/00
Filed: 2020-07-29
Abstract: A vehicle speed intelligent measurement method based on a binocular stereo vision system. The method comprises the following steps: training an SSD neural network by using license plates as a detection feature in order to obtain a license plate recognition model; calibrating a binocular stereo vision system to obtain intrinsic parameters and external parameters for two cameras; performing license plate detection on an acquired video frame by using the license plate recognition model, and locating the position of a license plate of a target vehicle; by means of a feature-based matching algorithm, performing feature point extraction and stereo matching in respect of the position of the license plate; performing screening and removal in respect of retained matching points, and retaining the coordinates of the matching point for the position closest to the center of the license plate; performing stereo measurement on the screened matching points to obtain a position with spatial coordinates; and calculating the distance the target vehicle has traveled during a certain time interval, so as to obtain the operating speed of the target vehicle. In the method, installation and debugging are simple and a plurality of features on which training is carried out can be automatically recognized, thus the invention can better meet future development requirements for intelligent traffic networks and the internet of things.
Patent WO-2021047328-A1 (WO)
Title: Method for determining maximum strain for wellbore instability breakage
Inventor: CONG YU
IPC: G01B7/16
Filed: 2020-07-31
Abstract: A method for determining the maximum strain for wellbore instability breakage, comprising the following steps: (1) constructing a simulation calculation model to calculate the plastic limit strain of a rock mass; (2) constructing a refined three-dimensional geological model to reproduce a geological environment; (3) monitoring strain information of a wellbore; (4) providing a reasonable calculation model of the wellbore under the influence of multiple factors; (5) setting the initial water head drop height of the model, selecting an initial reduction coefficient K, reducing a well wall c and φ, and inversely bringing same into the calculation model to see whether an area appears in which the strain is greater than the maximum strain; (6) reducing the strength of a unit within the well wall that exceeds the maximum strain; and (7) recording a reduction coefficient as a safety coefficient of a current water level drop well wall. The described method for determining the maximum strain for wellbore instability breakage provides a theoretical basis for mine technicians to evaluate wellbore stability.
Patent WO-2021063114-A1 (WO)
Title: Procédés et appareils pour envoyer et recevoir des informations
Inventor: SUN HONGLI
IPC: H04L5/00
Filed: 2020-08-11
Abstract: La présente invention concerne des procédés et des appareils pour envoyer et recevoir des informations. Le procédé d'envoi d'informations comprend les étapes suivantes : lorsque la démodulation des premières données de liaison montante est achevée, utilisation d'un canal de commande de liaison descendante spécifié pour envoyer des premières informations d'indication à un terminal, les premières informations d'indication étant utilisées pour indiquer le résultat de la démodulation des premières données de liaison montante, et le canal de commande de liaison descendante spécifié comprenant un canal de commande de liaison descendante à envoyer actuellement ou un canal de commande de liaison descendante actuellement disponible.
Patent WO-2021203608-A1 (WO)
Inventor: QI HAILONG
IPC: C07K19/00
Filed: 2020-08-19
Abstract: 提供了靶向VEGFR2(KDR)的转移性癌疫苗，其通过将促进肿瘤新生血管生成的VEGFR2蛋白与DC细胞配体XCL1融合表达，提高了VEGFR2蛋白被DC细胞吞噬、加工、呈递的效率，改善了其抑制肿瘤生长的效果。经由实验验证，该核酸疫苗表达的蛋白可以有效地结合DC细胞、诱导VEGFR2特异性T细胞反应并在多种模型中显著抑制高表达VEGFR2的肿瘤的生长。
Patent WO-2022040967-A1 (WO)
Inventor: LIAO HONGGANG
IPC: G01N23/04
Filed: 2020-08-26
Abstract: 一种透射电镜高分辨原位温差芯片及其制备方法，原位温差芯片包括双面覆盖有绝缘层（10）的基片（1），基片（1）的正面上设置有加热层（11），加热层（11）包括两对称设置的加热单元，每一加热单元都包括由加热丝（111）构成的加热区、两接触电极（112）以及连接加热丝（111）和接触电极（112）的连接线路（113），其中，加热丝（111）布设形成大致方形的加热区，两个接触电极（112）位于基片（1）的同侧边缘；两加热单元的加热区之间具有用来搭载样品的缝隙；基片（1）除加热单元外的区域被腐蚀镂空，从而形成用于支撑加热区的第一支撑区域（101）和用于支撑连接线路（113）的第二支撑区域（102），芯片具有快速升降温、精准测温控温、持续维持精准温差、分辨率高、样品漂移率低的优点。
Patent WO-2022016674-A1 (WO)
Title: Network configuration method and device for smart device, and storage medium
Inventor: CHEN TUFU
IPC: H04W48/14
Filed: 2020-09-02
Abstract: Disclosed by the present application are a network configuration method and device for a smart device, and a storage medium. The method comprises: when a network configuration request issued by a device to be configured for a network is received, extracting device information of the device from the network configuration request; determining a target network connection mode according to the device information, and establishing a target network connection according to the target network connection mode; acquiring network configuration information, and sending the network configuration information to the device by means of the target network connection, so that the device performs network configuration according to the network configuration information.
Patent WO-2021189780-A1 (WO)
Inventor: Ma Linnan
IPC: C09K11/06
Filed: 2020-09-14
Abstract: L'invention concerne un composé organique à base de carbazole ayant un substituant d'adamantyle. La présente invention relève du domaine technique des matériaux électroluminescents organiques. Le composé organique peut servir de matériau de couche électroluminescente organique dans un appareil électroluminescent organique et peut réduire la tension lumineuse de l'appareil électroluminescent organique et améliorer l'efficacité lumineuse et la durée de vie de l'appareil.
Patent WO-2021135448-A1 (WO)
Inventor: JIANG BO
IPC: H04L29/08
Filed: 2020-09-25
Abstract: 本申请公开了一种服务调用方法、装置、设备及介质。服务调用方法包括：接收服务调用端发送的第一服务请求报文；响应于第一服务请求报文，确定第一服务请求报文的报文头信息；在报文头信息中存在路由标识的情况下，根据路由标识，在多个数据中心中，确定目标数据中心；向目标数据中心发送第一服务请求报文，以使目标数据中心为服务调用端提供服务。根据本申请实施例，能够提高服务调用的效率。
Patent WO-2022067586-A1 (WO)
Title: Apparatus and method for enabling a user equipment to access one or more second networks
Inventor: WEI QING
IPC: H04W36/00
Filed: 2020-09-29
Abstract: There is provided a method of a first network for operating a user equipment UE to access one or more second networks. The method includes obtaining an activation indication, wherein the activation indication is useable to indicate to the UE to connect to the one or more second networks via a communication path in the first network. Moreover, the method further includes providing, to the UE, the activation indication for enabling the UE to connect to the one or more second networks.
Patent WO-2021139290-A1 (WO)
Inventor: ZHANG XIAOBO
IPC: H02K1/27
Filed: 2020-10-13
Abstract: 本申请提供一种电机转子和电机。该电机转子包括转子铁芯(1)，转子铁芯(1)上设置有垂直于电机d轴的第一安装槽(2)以及位于第一安装槽(2)两侧的两个第二安装槽(3)，第一安装槽(2)内设置有第一永磁体(4)，第二安装槽(3)内设置有第二永磁体(5)，两个第二安装槽(3)关于电机d轴对称，第一安装槽(2)与第二安装槽(3)之间形成夹角α，其中155°≤α≤170°。
Patent WO-2022077346-A1 (WO)
Inventor: CHEN WENHONG
IPC: H04L5/00
Filed: 2020-10-15
Abstract: Un procédé de transmission de canal, un dispositif terminal et un dispositif de réseau, pouvant améliorer les performance de détection de PDCCH, sont divulgués. Le procédé de transmission de canal fait appel aux étapes suivantes : un dispositif terminal déterminant, selon des premières informations de configuration, un mode de détection appliqué à des PDCCH dans un CORESET cible, le CORESET cible étant configuré avec une pluralité d'états TCI ; et le mode de détection étant l'un des trois modes suivants : le premier mode étant la détection de chaque PDCCH dans le CORESET cible au moyen de la pluralité d'états TCI ; le second mode étant respectivement la détection de différents PDCCH, qui portent les mêmes informations, dans le CORESET cible au moyen la pluralité d'états TCI ; et le troisième mode étant la détection de chaque PDCCH dans le CORESET cible au moyen de l'un de la pluralité d'états TCI.
Patent WO-2022082674-A1 (WO)
Inventor: WU YEDAN
IPC: H04W36/00
Filed: 2020-10-22
Abstract: 本申请公开了一种通信方法、装置和系统，该方法中：从第一接入网设备接收第一消息，其中，所述第一消息中包括2-step CFRA的资源配置信息和/或2-step CBRA的资源配置信息，根据所述第一消息，在目标小区进行随机接入，并发送第一报告，所述第一报告包括第一信息，所述第一信息包括与所述2-step CFRA和/或2-step CBRA的过程相关的信息。
Patent WO-2021083206-A1 (WO)
Inventor: YU SHISHAN
IPC: A61P9/12
Filed: 2020-10-28
Abstract: Provided are a keratin BD-17, a nucleic acid molecule encoding the keratin BD-17, an expression vector containing the nucleic acid molecule, a host cell which contains the expression vector or in which the genome integrates the nucleic acid molecule, a method for preparing the keratin BD-17, a pharmaceutical composition containing the keratin BD-17, and applications of the keratin BD-17, the nucleic acid molecule, the expression vector, the host cell, or the pharmaceutical composition in preparing antipyretic and analgesic, antitussive and expectorant, anticonvulsant, antiepileptic, hypotensive, anti-inflammatory, and antiviral drugs.
Patent WO-2021184790-A1 (WO)
Title: Cathode and cathode slurry for secondary battery
Inventor: HO KAM PIU
IPC: H01M10/052
Filed: 2020-11-16
Abstract: Provided herein is a cathode slurry for a secondary battery, comprising a cathode active material, a binder material and a lithium compound. The lithium compound in the cathode slurry serves as a lithium ion source in compensating for the irreversible capacity loss due to SEI formation during initial charging of the battery and forms removable gaseous products upon decomposition. Consequently, battery cells prepared using the cathode slurry disclosed herein exhibit improved electrochemical performance. Also provided herein is a cathode for a secondary battery, comprising a current collector and an electrode layer coated on one side or both sides of the current collector, wherein the electrode layer comprises a cathode active material, a binder material and a lithium compound.
Patent WO-2022048023-A1 (WO)
Inventor: WANG CHI
IPC: H01L21/677
Filed: 2020-11-17
Abstract: The present invention provides a vertical automatic wafer loading/unloading device, comprising: a loading mechanism, an XY mechanism, and a flipping mechanism. The loading mechanism comprises: a platform and a lifting/lowering structure; the platform is driven by the lifting/lowering structure to move up and down; the XY mechanism drives the flipping mechanism to perform translational movement on one side of the loading mechanism and comprises: a first base, first guide rails allowing the first base to slide in an X direction, a second base provided on the first base, and second guide rails allowing the second base to slide in a Y direction; the flipping mechanism comprises: a flipping platform and a second transmission motor driving the flipping platform to pivot; and the flipping platform is provided with at least two loading slots side by side. The vertical automatic wafer loading/unloading device of the present invention employs an flipping mechanism which first receives wafers placed horizontally and then flips over to a vertical state to facilitate the loading/unloading of the wafers in a vertical manner, thereby overcoming the problem that the wafers cannot be positioned and gripped when the wafers are tilted in traditional loading methods.
Patent WO-2022104658-A1 (WO)
Inventor: SEIJI TAKAHASHI
IPC: H04N5/374
Filed: 2020-11-19
Abstract: La présente invention concerne un dispositif d'imagerie à semi-conducteur dans lequel une pluralité de pixels unitaires sont agencés sous la forme d'une matrice selon les directions des lignes et des colonnes. Le dispositif d'imagerie à semi-conducteur comprend : une première région d'isolation de pixel à pixel formée dans un premier procédé ; et une seconde région d'isolation de pixel à pixel formée dans un second processus qui diffère du premier processus. Chaque pixel unitaire comprend : une ou plusieurs zones de détection de lumière ; et une ou plusieurs zones de circuit de lecture de signal. Chaque zone de détection de lumière comprend : une ou plusieurs photodiodes ; un ou plusieurs transistors de transfert ; et une partie de diffusion flottante. Les zones de circuit de lecture de signal comprennent une pluralité de transistors en pixel. Dans chaque pixel unitaire, la diffusion flottante et les transistors internes à un pixel sont partagés par une pluralité de photodiodes et de transistors de transfert. Chaque photodiode et chaque transistor de transfert sont agencés dans une section isolée par la première région d'isolation de pixel à pixel et la seconde région d'isolation de pixel à pixel. Des régions d'intersection de la première région d'isolation de pixel à pixel et de la seconde région d'isolation de pixel à pixel sont agencées dans des positions qui diffèrent de la diffusion flottante et des régions de canal des transistors en pixel.
Patent WO-2021232725-A1 (WO)
Title: Voice interaction-based information verification method and apparatus, and device and computer storage medium
Inventor: HUANG JIZHOU
IPC: G06F16/33
Filed: 2020-11-25
Abstract: A voice interaction-based information verification method and apparatus, and a device and a computer storage medium, relating to the field of artificial intelligence technology. Said method comprises: acquiring a voice response text fed back by a user with regard to a voice query, wherein the voice query is used for performing information verification on the user (101); and inputting various characters of the voice response text and phonetic notation information corresponding to the various characters into a pre-trained semantic understanding model, and acquiring user intention information and/or verified object information outputted by the semantic understanding model, the user intention information comprising confirmation, rejection, answer or questioning (102).
Patent WO-2021109981-A1 (WO)
Inventor: ZHAO YUXIN
IPC: G06Q30/06
Filed: 2020-12-01
Abstract: An information display method and apparatus. A sample preference feature representing preference of a user for a display form of information is determined according to an attribute of the user and display forms of sample information clicked by the user in the past. A display form feature of a display form of sample information to be displayed clicked by the user in the past when said sample information is clicked is taken as a positive sample, and a display form feature of a display form of unclicked sample information to be displayed of information corresponding to the clicked display form when said sample information is not clicked is taken as a negative sample. A first model for determining a preference feature and a second model for determining a display form feature are trained together by means of the determined sample preference feature, the positive sample, and the negative sample. Further, a display form of the information is determined by comparing a similarity between the preference feature output by the first model and the display form feature output by the second model.
Patent WO-2021115326-A1 (WO)
Title: 数据处理的方法、装置和电子设备、存储介质和程序产品
Inventor: Shen Yangshu
IPC: H04L12/801
Filed: 2020-12-09
Abstract: 本公开提供了一种数据处理的方法、装置及电子设备，用于解决如何高效的在多个数据源中确定优先传输的数据源，并动态调整数据的优先级顺序的问题。在各个处理周期内，所述方法包括：确定多个候选数据，其中，所述候选数据由相应的数据源提供；根据所述多个候选数据所各自对应的数据源在当前周期中的优先级，确定目标数据，其中，同一数据源在不同处理周期中的优先级不同，且同一数据源在不同处理周期中的优先级次序号之间满足非线性关系。
Patent WO-2021121177-A1 (WO)
Inventor: SHI YUAN
IPC: H04L5/00
Filed: 2020-12-14
Abstract: Embodiments of the present invention provide a DMRS port indication method and device. The method comprises: before RRC signaling is received, receiving first information, the first information indicating a DMRS port of the terminal.
Patent WO-2021129570-A1 (WO)
Title: 一种基于网络激活与稀疏化的网络裁剪优化方法
Inventor: CHEN YINGPENG
IPC: G06N3/08
Filed: 2020-12-21
Abstract: 一种基于网络激活与稀疏化的网络裁剪优化方法，本方法首先进行网络激活，在每层卷积层之后添加随机丢失层，并且判断随机丢失层之后是否存在归一化层，如不存在，需添加，反之，则不添加，并且进行网络激活训练；然后进行网络稀疏化，最后进行网络裁剪，稀疏化训练之后，利用归一化层的缩放因子与卷积核权重值的乘积值作为评判值，将评判值与裁剪阈值T对比，从而删除相应的卷积核。所述方法可有效的避免网络裁剪方法的缺点并保留其优点，实现网络更快、更精确的推理。
Patent WO-2022120949-A1 (WO)
Title: 光传感器和显示装置
Inventor: CAI GUANGSHUO
IPC: H01L27/144
Filed: 2020-12-23
Abstract: 一种光传感器(41)和显示装置，光传感器(41)通过采用光传感晶体管(T1)和开关晶体管(T2)形成光传感器电路，并在结构设计中，采用非晶硅作为光传感晶体管(T1)的第一有源图案(141)，使得第一有源图案(141)的沟道区的厚度(L)等于或者大于5000埃，提高了光传感晶体管(T1)的光生载流子数量，使得光传感器的响应较高，提高了指纹识别成功率。
Patent WO-2021136403-A1 (WO)
Title: Multidirectional guided endoscope
Inventor: MO WENJUN
IPC: A61B1/01
Filed: 2020-12-30
Abstract: A multidirectional guided endoscope, comprising an endoscope main body (1), a catheter (2) being connected on the endoscope main body (1); at least four pull wires (3) are evenly distributed within the endoscope main body (1), and another end of the pull wires (3) is connected to an end of the catheter (2) far from the endoscope main body (1); pulling mechanisms (4) are fixed on the pull wires (3), a guide rod is sleeved on the pulling mechanisms (4), and the guide rods are fixed within the endoscope main body (1); and a plurality of strip-shaped grooves (11) are provided on the endoscope main body (1), and one end of the pulling mechanisms (4) extends out of the strip-shaped grooves (11). Provided is a multidirectional guided endoscope in which a pulling mechanism (4) has a simple structure, is convenient to operate, and is accurate and stable during pulling.
Patent WO-2022141228-A1 (WO)
Inventor: ZHANG ZHENGSONG
IPC: C07H1/00
Filed: 2020-12-30
Abstract: L'invention concerne un procédé de préparation de sucralose, une solution de produit brut, et du sucralose, le procédé comprenant les étapes consistant à : dissoudre du sucralose-6-acétate dans du méthanol, ajouter de l'oxyde de calcium dans la solution de réaction du sucralose-6-acétate pour une réaction de désacylation, et la filtrer et récupérer l'oxyde de calcium à partir du mélange réactionnel pour obtenir une solution de produit brut de sucralose.
Patent WO-2022150961-A1 (WO)
Title: Blockchain security monitoring method and apparatus, electronic device and storage medium
Inventor: WANG YI
IPC: G06F11/30
Filed: 2021-01-12
Abstract: A blockchain security monitoring method and apparatus, an electronic device and a storage medium. The method comprises: obtaining a data strip to be detected and a preset total quantity of monitoring resources (201); selecting, according to the confidence level, monitoring frequency and usage amount of a storage node corresponding to said data strip, a node to be detected (202); and allocating, on the basis of a preset monitoring resource allocation rule and the preset total quantity of monitoring resources, a monitoring resource for each storage data block according to the access frequencies of storage data blocks in the node to be detected, so as to perform security monitoring on said node (203). In the method, by selecting, according to the confidence level, monitoring frequency and usage amount of each storage node, the node to be detected, and further allocating monitoring resources according to the access frequency of each storage data block in the node, the monitoring frequency of each storage node is balanced, and the monitoring resources are reasonably allocated, thereby improving the reliability of a security monitoring result, and laying a foundation for improving the security of a blockchain storage system.
Patent WO-2021253820-A1 (WO)
Inventor: SUN ZIYANG
IPC: G06Q10/08
Filed: 2021-01-14
Abstract: 一种基于区块链技术的智能物流配送系统，涉及区块链技术领域，包括有产品物联链云服务系统框架、基础设施层和交易产品，所述产品物联链云服务系统框架的内部包括有数据层、业务层和应用层。通过区块链与供应链物联网的结合带来的最大益处包括去中心化、提升信任、安全加密、成本降低，以及提升操作速度。
Patent WO-2021155766-A1 (WO)
Title: Polymorph of ep4 receptor antagonist, preparation method therefor and use thereof
Inventor: ZHANG HANKUN
IPC: A61P37/08
Filed: 2021-01-29
Abstract: Provided are a polymorph of an EP4 receptor antagonist, a preparation method therefor and a use thereof, relating in particular to a polymorph of an EP4 receptor antagonist (S)-4-(1-(2-(4-fluorobenzyl) )-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxamido)ethyl)benzoic acid, a preparation method therefor and a use thereof. Compared with an amorphous form of a compound represented by formula I, the polymorph of the present invention has higher stability and better processing performance and is very suitable for being prepared into a medicine.