baber/WOPTO huggingface dataset:
Patent WO-2019085878-A1 (WO)
Inventor: QIU ZHONGQUAN
IPC: G01F23/14
Filed: 2018-10-30
Abstract: La présente invention se rapporte à un procédé permettant de déterminer des paramètres volumétriques d'un liquide à l'intérieur d'un récipient (14) à l'aide de la diffusion d'une quantité de gaz de référence. Le procédé consiste à remplir un premier tube (22) de gaz à une pression de référence, ce qui permet au gaz de se diffuser vers le récipient (14), et à mesurer une première pression stable du gaz. Ledit récipient (14) est ensuite rempli d'une quantité du liquide, et le premier tube (22) est rempli de gaz à la pression de référence. Le gaz fourni se diffuse vers le récipient (14), et une seconde pression stable du gaz est mesurée. Ensuite, une partie de la quantité du liquide est évacuée de ce récipient (14), et le premier tube (22) est rempli de gaz à la pression de référence. Le gaz fourni se diffuse vers le récipient (14), une pression instantanée du gaz fourni est détectée, et un volume instantané du liquide à l'intérieur dudit récipient (14) est calculé. La présente invention a trait également à un système de détection (10) servant à déterminer des paramètres volumétriques d'un liquide à l'intérieur d'un récipient (14).
Patent WO-2019085896-A1 (WO)
Inventor: YU JIANJUN
IPC: H04B10/25
Filed: 2018-10-30
Abstract: Selon la présente invention, un appareil récepteur optique comprend : un photodétecteur qui détecte des signaux optiques modifiés en amplitude, transmis via un canal de transmission optique et mappés sur des points de constellation, et convertit le signal optique en signaux électriques; un circuit d'échantillonnage qui échantillonne les signaux électriques et génère des signaux numériques; et un circuit de traitement de signal comprenant un algorithme d'égalisation en deux étapes qui fait converger des points de constellation réels en des points de constellation souhaités. L'algorithme d'égalisation en deux étapes comprend un premier algorithme d'égalisation qui utilise plusieurs modules pour exécuter un calcul de signal d'erreur, et un second algorithme d'égalisation qui comprend une procédure de filtrage qui compare des points de constellation réels à des points de constellation souhaités, et une procédure d'ajustement qui ajuste de manière itérative des paramètres de la procédure de filtrage selon le résultat de la comparaison.
Patent WO-2020082437-A1 (WO)
Inventor: XIONG ZHI
IPC: G09G3/36
Filed: 2018-11-09
Abstract: Selon la présente invention, la commande de données d'un panneau d'affichage est configurée en tant que mode de sortie pour commander un signal de données. Le mode de sortie comprend un premier mode de commande et un second mode de commande. Le signal de données est émis dans différentes trames par le premier mode de commande et le second mode de commande, respectivement.
Patent WO-2020056903-A1 (WO)
Title: 用于生成信息的方法和装置
Inventor: WU XINGLONG
IPC: G06K9/00
Filed: 2018-11-16
Abstract: 用于生成信息的方法和装置，所述方法包括：获取预先对目标视频的当前帧进行人脸检测后所得到的第一人脸检测框的位置信息，以及，获取预先对该当前帧的上一帧进行人脸检测后所得到的第二人脸检测框的位置信息（201）；基于所获取的位置信息，确定该第一人脸检测框和该第二人脸检测框的交并比（202）；基于该交并比，确定所获取的各人脸检测框的位置信息的权重（203）；基于所确定的权重和所获取的位置信息，确定该第一人脸检测框的目标位置信息，以对该第一人脸检测框的位置进行更新（204）。所述方法提升了人脸检测框的平滑效果。
Patent WO-2020107183-A1 (WO)
Title: Fuel assembly transport container and bottom sealing device thereof
Inventor: WU TENG
IPC: G21F5/008
Filed: 2018-11-26
Abstract: A fuel assembly (3) transport container and a bottom sealing device (225) thereof. The bottom sealing device (225) comprises a lower cover (2251) for sealing the bottom of the transport container and a clamping device (2252) mounted on the lower cover (2251). The clamping device (2252) comprises a clamping mechanism (2253) and an operating mechanism (2254), the clamping mechanism (2253) comprising at least one clamping member (2255) which is located inside the lower cover (2251) and reciprocates along the side of the lower cover (2251) between one clamping position and one unclamping position. The operating mechanism (2254) comprises an operating portion (2260) for driving the clamping member (2255) to move towards the clamping position, and when the clamping member (2255) is in the clamping position, the clamping member clamps a lower tube socket of the fuel assembly (3) within the transport container. The clamping device (2252) is mounted on the lower cover (2251), ensuring the integrity of the edge of the lower cover (2251), solving the sealing problem of a chamber of the fuel assembly (3), and ensuring the sealing of the chamber of the fuel assembly (3) during transportation. An arc structure of the outer edge of the lower cover (2251) improves safety, and the operation of a fastening device is simple, improving reliability, and ensuring the fastening of a base of the fuel assembly (3); and the lower cover (2251) is more uniformly stressed under impact.
Patent WO-2019101209-A1 (WO)
Inventor: ZHANG SHENG
IPC: H04L17/00
Filed: 2018-11-27
Abstract: 本发明公开了双通路发射功率切换检测电路，第一检测模块分别与供电电源、第一射频连接器和第二连接器连接，第二检测单元与第二射频连接器连接，第一检测模块和第二检测模块分别根据第一射频连接器和第二射频连接器的接入状态控制供电电源的电流路径，通过第一检测模块输出相应的检测电平信号，判断开启或关闭发射功率切换功能。
Patent WO-2019114545-A1 (WO)
Inventor: SUN CHUANGCHENG
IPC: F21Y115/10
Filed: 2018-11-28
Abstract: 一种充电桩，旨在解决现有充电桩的指示灯照射不到充电桩下方的充电枪插座以及充电桩正面发光效果差的问题。充电桩包括透光的前壳（1）、后壳（2）、发光件（3）和曲面构件（4），其中，前壳（1）与后壳（2）匹配连接，曲面构件（4）一体成型在后壳（2）上，发光件（3）设置在前壳（1）和曲面构件（4）之间，曲面构件（4）面向前壳（1）的一侧设置有凹凸结构（41），发光件（3）发出的光通过曲面构件（4）上的凹凸结构（41）能够反射到前壳（1）上，使前壳（1）的前面板呈现出明暗相间的线性光线，进而使穿过前面板的光照亮充电枪插座（5）。充电桩的发光件（3）通过曲面构件（4）不仅能够照亮到充电枪插座（5），而且优化了充电桩正面的发光效果。
Patent WO-2019237681-A1 (WO)
Inventor: CAI XIAOJIE
IPC: A45C11/20
Filed: 2018-12-03
Abstract: La présente invention concerne un récipient d'emballage scellé, comprenant un couvercle de récipient (1) et un corps de récipient ouvert (2), une première rainure de mise en prise interne (11) et une première rainure de mise en prise externe (12) d'une structure rotative étant agencées le long du bord du couvercle de récipient (1), une seconde rainure de mise en prise interne (21) et une seconde rainure de mise en prise externe (22) de la structure rotative étant agencées de manière correspondante le long de l'ouverture du corps de récipient (2) ; et comprenant également une structure anti-libération. Le récipient d'emballage a une forte résistance à la déformation et une structure anti-libération stable, ainsi que de bonnes performances d'étanchéité.
Patent WO-2019233062-A1 (WO)
Title: Control method for ludicrous accelerating mode, storage medium and electric automobile
Inventor: LU QUN
IPC: B60L15/20
Filed: 2018-12-04
Abstract: A control method for a ludicrous accelerating mode, a storage medium and an electric automobile. The method comprises: step 301: detecting a treading operation of a brake pedal after entering an activated state, and if the treading operation of the brake pedal is detected, executing step 302, otherwise, executing step 306; step 302: detecting whether a current vehicle speed is lower than a preset stationary speed or not, and if yes, executing step 303; step 303: adjusting a motor torque of the electric automobile to an initial pre-torque, and starting initial activation timing; step 304: if a release operation of the brake pedal is detected when the initial activation timing does not reach a preset initial activation duration, executing step 306, otherwise, executing step 305; step 305: when the initial activation timing reaches the preset initial activation duration, ending a ludicrous accelerating mode, and returning to prepare state detection; and step 306: increasing a motor speed according to a pre-calibrated curve.
Patent WO-2019179174-A1 (WO)
Inventor: LI CHENG
IPC: G01N33/558
Filed: 2018-12-07
Abstract: Provided is a colloidal gold test strip for detecting clostridium difficile comprising an absorbent pad, a base film, a gold-labeled pad and a sample pad connected in sequence, wehrein the base film is provided with a C line and a T line, wherein the C line is coated with a dCas9 antibody, and the T line is coated with a tcdB gene fragment-bovine serum albumin complex,and the gold-labeled pad contains a colloidal gold-labeled dCas9-gRNA protein nucleic acid complex. Also provided is a kit for detecting the clostridium difficile, wherein the kit comprises the colloidal gold test strip for detecting the clostridium difficile as described above.
Patent WO-2020056932-A1 (WO)
Title: 一种三维非易失性铁电存储器
Inventor: JIANG ANQUAN
IPC: H01L27/11504
Filed: 2018-12-10
Abstract: 一种三维非易失性铁电存储器，包括铁电存储器阵列结构，铁电存储器阵列结构包括堆叠式地布置的多层铁电存储单元阵列，每层铁电存储器单元阵列包括按行和列排列的铁电存储单元；其中，对应铁电存储单元的两侧分别相对地布置有基本正交的字线和位线，对应所述铁电存储单元邻接地布置参考铁电体；铁电存储单元中的电畴的极化方向与施加在字线和位线上的写电压信号的电场方向不垂直；并且，在字线和位线之间施加所述写电压信号时，能够使所述铁电存储单元的电畴发生反转并与其邻接的所述参考铁电体之间建立畴壁导电通道，其中，畴壁导电通道能电连接所述铁电存储单元的两侧的字线和位线。该三维非易失性铁电存储器密度高、成本低。
Patent WO-2019144735-A1 (WO)
Title: Air conditioning system and air conditioner
Inventor: YANG GONGZENG
IPC: F24F5/00
Filed: 2018-12-20
Abstract: An air conditioning system and an air conditioner, falling within the technical field of the air conditioner, designed to solve the problem that the heating effect of the existing air conditioner cannot be improved properly. The air conditioning system comprises an indoor unit (1), an outdoor unit (2) and a compressor (3); the indoor unit (1), the outdoor unit (2) and the compressor (3) form a closed-loop circular main route; the air conditioning system further comprises a solar heating device connected in parallel with the outdoor unit (2); the solar heating device is able to assist the outdoor unit (2) in heating when the air conditioner is operating in a heating mode, and substitute for the function of the outdoor unit (2) when the air conditioner is operating in a defrosting mode. By means of the installation of the solar heating device, the outdoor unit (2) can be assisted in heating when the air conditioner is operating in a heating mode, that is, a heating compensation is made to the outdoor unit (2) when the air conditioner is operating in a heating mode, and when the air conditioner is operating in a defrosting mode, the outdoor unit (2) is ensured a continuous heating such that a heating discontinuity of the indoor unit (1) caused by the defrosting to the outdoor unit (2) will not occur; thus, more energy is saved for the air conditioner, and the user experience is enhanced.
Patent WO-2019129232-A1 (WO)
Title: Cdk抑制剂和溶瘤病毒在制备抗肿瘤药物的应用
Inventor: YAN GUANGMEI
IPC: A61K45/00
Filed: 2018-12-28
Abstract: CDK抑制剂和溶瘤病毒在制备抗肿瘤药物的应用。CDK抑制剂可以用于制备溶瘤病毒抗肿瘤增效剂。一种包含CDK抑制剂以及溶瘤病毒的药物组合物，包含CDK抑制剂及溶瘤病毒的药品套装，以及CDK抑制剂与溶瘤病毒在治疗肿瘤，特别是对所述溶瘤病毒不敏感的肿瘤中的用途。
Patent WO-2019137250-A1 (WO)
Title: Method and device for management of integrity protection key
Inventor: CHANG JUNREN
IPC: H04W12/106
Filed: 2018-12-28
Abstract: Disclosed are a method and device for management of an integrity protection key. The method comprises: a communication device receiving, from a network device, a message for activation of DRB integrity protection; and the communication device generating a DRB integrity protection key. The invention solves a problem relating to generation of a DRB integrity protection key, thereby supporting flexible and effective management of DRB integrity protection keys.
Patent WO-2019144857-A1 (WO)
Inventor: CHEN LEI
IPC: H04W68/00
Filed: 2019-01-21
Abstract: 本申请提供了一种通信方法和通信设备，能够实现SI的更改。该方法包括：处于无线资源控制RRC连接态的终端设备接收寻呼消息，所述寻呼消息用于指示广播信息发生改变，所述广播信息包括系统信息SI、主系统信息块MIB、系统信息块SIB1和其他系统信息OSI中的至少一个特定的SIB中的至少一种，其中，所述SI包括所述MIB、所述SIB1和所述OSI，所述OSI中的至少一个特定的SIB为与所述终端设备相关联的SIB；所述终端设备根据所述寻呼消息，重新接收广播信息。
Patent WO-2020155011-A1 (WO)
Inventor: CHIANG I-HENG
IPC: A63B23/02
Filed: 2019-01-31
Abstract: 一种多功能健身器，其包括座垫板（1）、底板（2）、第一连接轴（3）、活动撑杆（4）、挡杆（6）以及阻尼件（7），所述座垫板（1）通过第一连接轴（3）枢接在底板（2）上，所述活动撑杆（4）装设在座垫板（1）与底板（2）之间，并且，所述活动撑杆（4）的一端与座垫板（1）枢接，另一端活动配合在底板（2）上，所述阻尼件（7）的一端与活动撑杆（4）靠近底板（2）的一端可拆卸配合连接，另一端朝向第一连接轴（3）延伸并配合连接至座垫板（1）或者底板（2）上，所述挡杆（6）固定装设在座垫板（1）的下部，并且位于活动撑杆（4）和第一连接轴（3）之间临近活动撑杆（4）的位置处；将阻尼件（7）与活动撑杆（4）配合连接的一端拆卸下来后，座垫板（1）能够绕着第一连接轴（3）转动压靠在底板（2）上，以完成健身器的收折，收折后的健身器，体积小、便于携带。
Patent WO-2019174474-A1 (WO)
Inventor: CHEN YAN
IPC: G06F11/30
Filed: 2019-02-28
Abstract: 本申请实施例提供了一种卡顿信息获取方法、装置及终端。该方法包括：运行目标应用程序；监控目标应用程序在运行过程中是否发生卡顿；若监控到目标应用程序在运行过程中发生卡顿，则通过与目标应用程序之间建立的数据通道从目标应用程序获取卡顿信息。在本申请实施例中，通过监控到前台运行的应用程序发生卡顿时，从该应用程序中自动获取卡顿信息，该过程无需人工参与，能提高获取卡顿信息的效率。
Patent WO-2019242324-A1 (WO)
Title: 定焦镜头及成像系统
Inventor: SU YUANHONG
IPC: G02B13/18
Filed: 2019-03-01
Abstract: 本申请公开了一种定焦镜头及成像系统，该定焦镜头包括：沿光轴从成像侧至像源侧依序排列的第一透镜组和第二透镜组，其两组的透镜总数包括至少七片透镜，第一透镜组为成像侧到光圈之间所包括的透镜，第二透镜组为光圈到像源侧之间所包括的透镜，第一透镜组包括至少两片透镜，所述两片透镜为负屈光力的第一透镜和负屈光力的第二透镜，第二透镜组包括至少三片正屈光力透镜，其中，第一透镜的第二表面和第二透镜的第二表面均凹向像源侧，第一透镜的第二表面和第二透镜的第二表面均为第一透镜和第二透镜与光轴相交且靠近像源侧的表面，第一透镜组中包括一片非球面透镜，第二透镜组中包括一片非球面透镜。通过上述方式，本申请能够为放大成像图像、改善像差以及校正色差提供技术支持。
Patent WO-2019201021-A1 (WO)
Inventor: WANG JIANPING
IPC: G09G5/14
Filed: 2019-03-05
Abstract: 一种电子设备的显示屏亮度控制方法、一种电子设备和计算机可读存储介质，其中电子设备包括N个显示屏；方法包括：确定每个显示屏的显示内容（201）；根据每个显示屏的显示内容，并确定出每个显示屏的背光亮度（202）；N个显示屏中至少存在两个具有不同背光亮度的显示屏时，对N个显示屏中至少一个显示屏的背光亮度进行调整，使N个显示屏的背光亮度相同（203）。
Patent WO-2019242328-A1 (WO)
Title: 信息检索方法、装置、设备及计算机可读介质
Inventor: FAN MIAO
IPC: G06F16/00
Filed: 2019-03-06
Abstract: 本发明提出一种信息检索方法，包括：通过搜索引擎检索与查询请求相关的网页；从检索到的各网页中提取与所述查询请求相关的文本并拼接得到拼接文本；在所述拼接文本中截取文本片段；将所截取的文本片段发送至搜索引擎，以使得搜索引擎在信息检索结果中显示所截取的文本片段。本发明实施例给搜索引擎在用户体验和交互方面带来极大的优势，能够满足用户对智能问答这一功能的需求。通过本发明实施例，能够直接为用户展示与查询请求相关性较强的简短文本，节省用户的信息筛选时间。
Patent WO-2020177090-A1 (WO)
Title: Lead-acid battery electric eye
Inventor: DAI ZENGSHI
IPC: H01M10/48
Filed: 2019-03-06
Abstract: Provided in the present utility model is a lead-acid battery electric eye, comprising an electric eye body and a sealing ring, the electric eye body comprising a light column and a column cap, an outer thread section being provided on the light column, a sealing groove being provided between the outer thread section and the column cap, a wedge-shaped groove being arranged on the column cap, the side of the wedge-shaped groove facing the fastening direction of the outer thread section having an upright face perpendicular to the column cap and the side of the wedge-shaped groove facing the loosening direction of the outer thread section having an inclined face inclined relative to the column cap, and the sealing ring being sleeved in the sealing groove. By means of arranging the wedge-shaped groove on the column cap, the electric eye body can be driven to be tightened on the storage battery case by pushing the upright surface with a special tool, and the assembly does not easily damage the electric eye; however, due to the presence of the inclined surface, it is difficult to unfasten the electric eye from the storage battery case, thereby preventing gas leakage or acid leakage, so that the service life of the storage battery is relatively long.
Patent WO-2020206721-A1 (WO)
Inventor: FAN YINGCHUN
IPC: H01L51/56
Filed: 2019-04-22
Abstract: A display panel (100) and a fabrication method therefor, and a display module, the display panel (100) comprising a display area (400), and the display area (400) comprising a first region (200) located at the edge of the display area (400); an auxiliary electrode (30) and a light-emitting protective layer (40) located on the auxiliary electrode (30) are provided within the first region (200), and the orthographic projection of the light-emitting protective layer (40) on the auxiliary electrode (30) partially overlaps the auxiliary electrode (30).
Patent WO-2019223626-A1 (WO)
Inventor: TAN JIFENG
IPC: G06K9/00
Filed: 2019-05-17
Abstract: L'invention concerne un dispositif de reconnaissance d'empreintes digitales, comprenant un substrat de réseau (21) ; une pluralité d'unités d'émission de lumière (22) disposées sur le substrat de réseau (21) ; un circuit de détection optique (23) disposé sur le substrat de réseau (21) et distribué entre les espaces entre la pluralité d'unités électroluminescentes (22) ; un polariseur (24) disposé sur le substrat de réseau (21) ; et une structure de gradation (25) disposée sur le polariseur (24), la structure de gradation (25) provoquant différents indices de réfraction, l'indice de réfraction de la structure de gradation (25) correspondant à une plage de réception de lumière du circuit de détection de lumière (23) étant supérieur à l'indice de réfraction de la structure de gradation (25) à l'extérieur de la plage de réception de lumière du circuit de détection de lumière (23). Par conséquent, la précision de reconnaissance d'empreintes digitales peut être améliorée.
Patent WO-2019223717-A1 (WO)
Inventor: CHEN YIJIAN
IPC: H04W72/04
Filed: 2019-05-22
Abstract: 本申请公开了一种波束恢复方法和装置，该方法包括：在发生波束失效后进行波束选择，选出新波束；确定选择出的新波束对应的PRACH资源，并在所述PRACH资源上发送指示信息；在发送指示信息之后，接收基站发送的控制信息。通过本申请的技术方案，改善了相关技术中资源要按照最坏的情况来进行预留，且任何时刻都不能被占用的问题，提供了一种有效的方式来很好的支持竞争的方式的波束恢复，能够改善高频中的阻塞现象并减少链路失效的情况。 (图1)
Patent WO-2020237664-A1 (WO)
Inventor: ZHENG RUIJIAO
IPC: B60W50/14
Filed: 2019-05-31
Abstract: 本申请公开了一种驾驶提醒方法、驾驶状态检测方法和计算设备。该驾驶提醒方法包括：获取被检测对象的人脸图像信息；从所述人脸图像信息中获取被检测对象的至少一个面部特征信息；根据所述面部特征信息判断被检测对象的驾驶状态；在满足预定条件时，基于所述驾驶状态发出对应的提醒信息。本申请实施例提出的方法，能够解决现有的驾驶员状态检测系统误报率高的问题，确保驾驶员有能力在规定时间范围内安全接管车辆。
Patent WO-2019237962-A1 (WO)
Inventor: ZHAO CHONG
IPC: A61M5/303
Filed: 2019-06-04
Abstract: A device for accelerating permeation, comprising a spraying pipe (1), a push plate (3), a syringe receiving recess, and a spraying device body (4). The spraying pipe (1) is disposed in the spraying device body (4); the syringe receiving recess is provided on the spraying device body (4) above the spraying pipe (1); a communicating pipe is provided at the end of the syringe receiving recess close to the spraying pipe (1); the communicating pipe is connected to the spraying pipe (1); the other end of the syringe receiving recess is provided with the push plate (3); one end of the spraying pipe (1) is provided with a spraying opening, and the other end of the spraying pipe (1) is connected to an external air pump; the spraying pipe (1) is a Venturi tube; a spraying liquid inlet (12) is provided in the middle of the spraying pipe (1); and the communicating pipe is connected to the spraying liquid inlet (12). On the basis of the device, the spraying speed is high, particles are small, the atomization effect is good, the beautifying effect is improved, the utilization rate of beautifying liquid is increased.
Patent WO-2020057180-A1 (WO)
Inventor: LIU JIEYAO
IPC: G06F1/26
Filed: 2019-06-06
Abstract: Provided are an on-chip passive power supply compensation circuit and an operational unit applying same, and a chip, a hashboard and a computing device. The on-chip passive power supply compensation circuit comprises: two or more voltage domains to be powered, wherein the voltage domains to be powered are connected between a power supply and the ground in series; and two or more isolation regions, wherein the voltage domains to be powered are formed in the isolation regions, the isolation regions are used for isolating the voltage domains to be powered, and the isolation regions are connected between the power supply and the ground in series. The on-chip passive power supply compensation circuit further comprises a power supply compensation unit connected between the voltage domains to be powered and the isolation regions and used for providing power supply compensation to the voltage domains to be powered. The on-chip passive power supply compensation circuit of the present invention can effectively reduce power consumption, reduce design difficulty, save on the chip area, and reduce production costs.
Patent WO-2020107857-A1 (WO)
Title: Method for preparing solid polymer electrolyte and solid secondary battery using same
Inventor: WEI WEIFENG
IPC: H01M10/0565
Filed: 2019-06-11
Abstract: Disclosed is a method for preparing a solid polymer electrolyte and the use thereof in a secondary battery. The solid polymer electrolyte is obtained by injecting a precursor solution containing a boron heterocyclic ring-containing alkene monomer, an alkene carbonic ester polymer monomer, a metal salt and an initiator into a porous support material, and subjecting same to an in situ polymerization reaction by means of heat, microwaves, etc. An ester group, an ether oxygen and a boron-containing functional group in the solid polymer electrolyte prepared in the present invention can produce a strong interaction with an alkali metal salt, so that microscopic movement of chain segments, the dissociation degree of the alkali metal salt, and non-uniform distribution of ions in the electrolyte are improved, and a higher ionic conductivity and ion migration number are obtained. Furthermore, by means of the in situ polymerization method, the compatibility and stability of an electrolyte/electrode heterogeneous interface are improved, thereby resulting in a better effect on the protection of the material of a negative electrode. Same can be applied to a multi-scale flexible energy storage device and can achieve a superior cycle stability and a high safety.
Patent WO-2021000202-A1 (WO)
Inventor: WEI CHUANDONG
IPC: G03B30/00
Filed: 2019-06-30
Abstract: Disclosed are a camera module (10) and an electric device (1), the camera module (10) comprising a lens set (200) and a lens barrel (100), wherein the lens set (200) comprises a plurality of lenses that are sequentially arranged from the object side to the image side; and the lens barrel (100) comprises an accommodating cavity (150) allowing the lens set (200) to be mounted, and an inner side wall (110) corresponding to the accommodating cavity (150) and close to the image side, with the inner side wall (110) being provided with a plurality of first light extinction grooves (111) that are arranged in an array, and with each of the first light extinction grooves (111) being arranged in an extending manner in the axial direction of the lens barrel (100). The inner side wall (110), close to the image side, of the accommodating cavity (150) of the lens barrel (100) is provided with the plurality of first light extinction grooves (111) that are arranged in an array, such that after light rays are emitted into the first light extinction grooves (111) that are arranged in an array, the light rays can be reflected multiple times to achieve a scattering effect, thereby reducing the formation of stray light that interferes with imaging of the camera module (10), and thus improving the imaging quality of the camera module (10).
Patent WO-2020042754-A1 (WO)
Inventor: QIAN HAORAN
IPC: G06K9/62
Filed: 2019-07-02
Abstract: A method and apparatus for verifying a holographic anti-counterfeiting code. The method for verifying a holographic anti-counterfeiting code comprises: acquiring a video stream containing a holographic anti-counterfeiting code at different projection angles (S101); extracting the projection angles and image features of the holographic anti-counterfeiting code in each frame among one or more frames of the video stream (S102); matching the projection angles and image features of the holographic anti-counterfeiting code in each frame in a pre-stored mapping table so as to obtain the matching rate of the holographic anti-counterfeiting code in each frame (S103), wherein the mapping relationship between different projection angles and image features of a sample holographic anti-counterfeiting code is stored in the mapping table; according to the matching rate of the holographic anti-counterfeiting code in each frame, determining whether the holographic anti-counterfeiting code is successfully verified (S104).