baber/WOPTO huggingface dataset:
Patent WO-2021139803-A1 (WO)
Inventor: LI HONGBIAO
IPC: B65D51/28
Filed: 2021-01-09
Abstract: A storage lid assembly capable of performing preparation by adding materials, comprising a base (1) for connecting to the mouth of a container (100); the base (1) has both ends open and is hollow, an upper cover (2) is connected to the upper opening of the base (1), the lower opening of the base (1) is in communication with the inner cavity of the container (100), a bottom cover (3) located at the mouth of the container (100) is provided between the upper and lower openings of the base (1) or at the lower side of the lower opening of the base (1) in a breakable manner, and a storage cavity (11) for storing additives is formed on the base (1) and between the upper cover (2) and the bottom cover (3); the inner bottom of the upper cover (2) is provided with a movable column (21) which is connected to the base (1) in a retractable manner; when the upper cover (2) moves relative to the base (1), the movable column (21) can move downwards in a retracted manner relative to the base (1), so that the bottom cover (3) is broken or disconnected, and thus the storage cavity (11) is in communication with the inner cavity of the container (100). The storage lid assembly can perform preparation, by adding materials, on the solution contained in the inner cavity of the container (100) when the storage lid assembly is used for the first time. The storage lid assembly can be used conveniently, has a simple structure and is easy to produce and manufacture.
Patent WO-2021208547-A1 (WO)
Inventor: ZHANG YUETONG
IPC: A47J31/40
Filed: 2021-01-18
Abstract: Disclosed is a powder discharging mechanism, comprising a powder bin (10), a material pushing member (21) and a material pushing power member (23). The material pushing member (21) is arranged in the powder bin (10); an output end of the material pushing power member (23) is connected to the material pushing member (21); an input end of the material pushing power member (23) is electrically connected to a control panel or a cloud end; the material pushing member (21) completes a linear motion along the axis of the powder bin (10) under the action of the material pushing power member (23); and the material pushing member (21) pushes powder arranged on the material pushing member (21) from bottom to top. The powder discharging structure uses an upward pushing type discharging manner, and has the advantages of being controllable in terms of precision and stable in terms of pushing process.
Patent WO-2022165757-A1 (WO)
Title: User equipment capability for transmission-reception point-specific (trp-specific) beam failure recovery (bfr)
Inventor: YUAN FANG
IPC: H04W72/04
Filed: 2021-02-05
Abstract: A method performed on a user equipment (UE) includes transmitting, to a base station (BS), a report including an indication of a beam failure recovery (BFR) capability of the UE. The method also includes receiving, from the BS based on the report, a BFR configuration for at least a first serving cell. The method further includes detecting, based at least in part on the BFR configuration, a beam failure in the first serving cell. Other aspects and features are also described.
Patent WO-2022165788-A1 (WO)
Inventor: XI YANHUI
IPC: H04R3/00
Filed: 2021-02-07
Abstract: Provided in the present disclosure are a display apparatus, a sound production control method, and a parameter determination method and apparatus. The display apparatus comprises: a plurality of actuators arranged on a display panel, wherein the display panel can produce sound on a screen by means of the plurality of actuators, the plurality of actuators form at least one sound production unit, each sound production unit comprises at least two actuators, the actuators in the same sound production unit are all connected to the same audio signal input end, and in a sound generation unit, a signal filter is arranged on an audio transmission line from the audio signal input end to at least one actuator, and is used to perform low-frequency compensation on sound produced by the entire sound production unit.
Patent WO-2021164622-A1 (WO)
Inventor: LIU HAODONG
IPC: H01L21/28
Filed: 2021-02-08
Abstract: Provided in some embodiments of the present application is a fabrication method for a semiconductor memory. The fabrication method for the semiconductor memory comprises: providing a part (2) to be processed, and performing a preset process step on the part (2) at least after a minimum waiting time; before performing the preset process step, performing a thermal oxidation process on the part (2); and performing a cleaning process before performing the preset process step, wherein the cleaning process is used to remove oxides on the surface of the part (2), and all or a portion of the oxides are generated by the thermal oxidation process.
Patent WO-2021227600-A1 (WO)
Title: Network slice control method and communication apparatus
Inventor: WU YIZHUANG
IPC: H04L12/24
Filed: 2021-02-25
Abstract: The present application relates to the technical field of communications, and provides a network slice control method and a communication apparatus, for use in improving network slice control flexibility and user experience. The method comprises: an AMF network element sends first information to an AAA server by means of an authentication and authorization network element, the first information comprising slice information of a first network slice and a first identifier of a first user equipment (UE), for example, the slice information being S-NSSAI or identification information obtained after the mapping of the S-NSSAI, the first identifier being GPSI, and network slices that the first UE is allowed or to be allowed to access comprising the first network slice; receiving second information from the AAA server, i.e., the second information being sent by the AAA server, for example, the AAA server sending the second information to the AMF network element by means of the authentication and authorization network element, the second information comprising first slice control information, and the first slice control information being information used by the first UE for the first network slice.
Patent WO-2021218334-A1 (WO)
Title: 过期数字证书管控方法、系统、装置及存储介质
Inventor: XUE MINGCE
IPC: G06Q20/38
Filed: 2021-02-26
Abstract: 提出一种过期数字证书管控方法、系统、装置及计算机可读存储介质，涉及区块链技术领域，该方法包括：公钥结合数据节点的身份信息以及关联信息构成证书申请请求文件发送到CA，CA添加预设的证书过期区块高度HC生成数字证书；数据节点判断交易对方的数字证书是否是可信机构颁发；若不是可信机构颁发，则交易无效，交易处理结束，若是可信机构颁发，则获取数字证书中关联信息的证书过期区块高度HC；获取数据节点当前所处区块链系统中的区块高度HB，判断HB是否大于HC，若不大于，则将交易放入有效交易池；将所述交易池中的交易打包成区块达成共识，所述数据节点所处区块链的区块高度加一，结束交易处理。
Patent WO-2021190245-A1 (WO)
Title: 显示基板及其制备方法、显示装置
Inventor: LI JIAN
IPC: H01L33/56
Filed: 2021-02-26
Abstract: 一种显示基板，包括：第一衬底、多个发光器件、光线调节层以及第二衬底。所述多个发光器件设置在所述第一衬底的一侧，所述多个发光器件相互间隔设置。所述光线调节层位于所述多个发光器件之间的间隙内、以及所述多个发光器件远离所述衬底的一侧表面上，以使至少一个发光器件被所述光线调节层包围。所述光线调节层的材料包括吸光材料，被配置为对射向至所述光线调节层的至少一部分光线进行吸收。所述第二衬底覆盖所述光线调节层。
Patent WO-2022198378-A1 (WO)
Inventor: SUN TIANYU
IPC: A61P31/04
Filed: 2021-03-22
Abstract: The embodiments of the present invention relate to the technical field of medicine, in particular to a β-lactamase inhibitor composition with a stable quality, the use thereof and a method therefor. The pharmaceutical composition of the embodiments of the present invention has improved hygroscopicity and better stability, so that the stability of materials in a preparation process can be ensured, and the pharmaceutical composition is particularly suitable for further preparing compound antibiotics. Moreover, experiments show that the β-lactamase inhibitor composition of the embodiments of the present invention can better improve the sensitivity of antibiotics to drug-resistant bacteria, and the prepared compound antibiotics have a stronger antimicrobial activity to drug-resistant bacteria.
Patent WO-2022205371-A1 (WO)
Inventor: REN YUWEI
IPC: G01S5/00
Filed: 2021-04-01
Abstract: La présente invention concerne des techniques de positionnement sans fil. Selon un aspect, un premier nœud de réseau reçoit, en provenance d'un deuxième nœud de réseau, un signal de référence de positionnement ayant un premier temps de réception au niveau du premier nœud de réseau, reçoit, en provenance d'un premier équipement utilisateur (UE), un premier signal de référence de positionnement de liaison montante ayant un deuxième temps de réception au niveau du premier nœud de réseau, reçoit, en provenance d'un deuxième UE, un deuxième signal de référence de positionnement de liaison montante ayant un troisième temps de réception au niveau du premier nœud de réseau, et permet une première mesure de différence de temps de signal de référence (RSTD) à calculer pour le premier UE et une deuxième mesure RSTD à calculer pour le deuxième UE en fonction du premier temps de réception, le deuxième temps de réception, le troisième temps de réception et d'autres mesures.
Patent WO-2021227703-A1 (WO)
Title: Transmission method, device, and storage medium
Inventor: ZHAO SICONG
IPC: H04L5/00
Filed: 2021-04-06
Abstract: The present application provides a transmission method, a device, and a storage medium. The method comprises: receiving indication information, and determining a first number of transmission blocks according to the indication information, wherein the indication information is used for activating configuration grant; and transmitting data according to the first number of transmission blocks. Once being activated, the configuration grant can be used all the time unless being deactivated, and therefore, only one indication information is required, so that uplink data transmission can be performed according to the determined first number of transmission blocks, thus reducing the downlink signaling overhead.
Patent WO-2021204283-A1 (WO)
Title: 一种基于里奇流的关键路段检出方法
Inventor: LI HAIFENG
IPC: G08G1/01
Filed: 2021-04-12
Abstract: 本发明公开了一种基于里奇流的关键路段检出方法，包括以下步骤：基于静态路网数据和实际流量数据，构建加权道路网络；计算不同时刻道路网络的初始奥利维里奇曲率值；通过里奇流迭代过程，得到使得网络每条边具有相同奥利维里奇曲率值的权重体系；计算同一路段权重变化的方向及变化程度，设定阈值提取权重在里奇流迭代过程中变化较大的路段。本发明方法是一种结合实际流量数据从流量传输角度提取城市路网关键路段的方法，解决了现有方法多仅从路网的拓扑结构分析关键路段，没有充分考虑路网的实际交通流分布情况以及网络的流量传输特性的问题。本发明方法简单易行，且检出结果更加符合实际路段交通分布和流量情况。
Patent WO-2021208849-A1 (WO)
Inventor: HUANG QIANG
IPC: A61B1/04
Filed: 2021-04-12
Abstract: 一种建立有效磁连接的方法和装置，该方法包括有效磁连接判断步骤和有效磁连接建立步骤，有效磁连接判断为根据移动磁源的磁场信号强度或移动磁源与运动引导模块的相对距离Δd判断是否已建立有效磁连接，建立有效磁连接时采用如下方式之一：方式一是在不同高度平面进行搜索，找到平面内磁场最大值满足有效磁连接磁场建立阈值的位置以建立有效磁连接；方式二是按照局域空间进行搜索，找到磁场最大值满足有效磁连接磁场建立阈值的位置以建立有效磁连接；方式三是采用辅助磁传感器阵列直接移动到相对距离满足Δd的位置以建立有效磁连接。本方法能够保证移动磁源在大范围工作空间内运动过程中，始终处于被有效驱动和检测的范围内。
Patent WO-2021218921-A1 (WO)
Inventor: PURWAR ABHINAV
IPC: H04N21/845
Filed: 2021-04-26
Abstract: The present disclosure provides methods and system for extraction of a video thumbnail from a video file, the video file being associated with one or more first parameters. The method dynamically identifies by an optimum optimizer, an optimum extractor based on the first parameters of the video file and historical data. The method further extracts, by the optimum extractor, one or more tracks, each track being associated with one or more second parameters. Thereafter the method dynamically identifies, by the optimum optimizer, an optimum decoder based on the one or more second parameters and the historical data. Further the method decodes the one or more tracks by the dynamically identified optimum decoder. The method then extracts by a thumbnail extractor unit, a video thumbnail based on the decoding.
Patent WO-2022232967-A1 (WO)
Title: Guard periods for sounding reference signal resource sets
Inventor: WANG RUNXIN
IPC: H04W72/04
Filed: 2021-05-04
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, signaling that indicates an indirect assignment of a slot for transmitting sounding reference signals (SRSs) in multiple SRS resource sets. The UE may determine whether the slot is available for the indirect assignment based on a first set of characteristics associated with the multiple SRS resource sets and a second set of characteristics associated with the slot. If the UE determines that the slot is available for the indirect assignment, the UE may transmit SRSs in the multiple SRS resource sets during the slot. If the UE determines that the slot is unavailable for the indirect assignment, the UE may refrain from transmitting SRSs in one or more of the multiple SRS resource sets during the slot.
Patent WO-2022037134-A1 (WO)
Inventor: CAI BOWEN
IPC: H04W72/04
Filed: 2021-05-10
Abstract: 本公开涉及一种基站的共享模式的控制方法、共享基站以及通信系统，涉及通信技术领域。本公开的方法包括：共享基站获取第一预设时间内第一运营商的独立载波的负载和第二运营商的独立载波的负载；共享基站在第一预设时间内各个独立载波的负载总量低于第一阈值的情况下，将第一运营商的独立载波或第二运营商的独立载波切换为共享载波；共享基站将未切换为共享载波的独立载波关闭。
Patent WO-2022236750-A1 (WO)
Inventor: ZHAI FENG
IPC: H01L33/48
Filed: 2021-05-12
Abstract: L'invention concerne un composant provisoire de puce, un panneau d'affichage et un procédé de fabrication associé. Une micropuce électroluminescente (13) dans le panneau d'affichage et un point de soudage (42) d'une pastille correspondante (41) sur une plaque arrière d'affichage (4) sont revêtus d'une colle pyrolytique (121), et la colle pyrolytique (121) peut bloquer la pénétration d'eau et d'oxygène, ce qui ralentit ou évite l'oxydation du point de soudage (42).
Patent WO-2021249370-A1 (WO)
Inventor: MENG XIANGHE
IPC: E01C3/06
Filed: 2021-06-08
Abstract: Disclosed in the present specification are a cladding product, a cladding product group and a cladding product body. The cladding product comprises a body. A connection molding is arranged on the peripheral surface of the body, wherein the connection molding can clad a cladded object or be cladded by a cladded object, and the cladded object can move in the direction within a preset range relative to the cladding product and cannot move in the outer normal direction along the peripheral surface.
Patent WO-2022236915-A1 (WO)
Inventor: GAO LI
IPC: C23C4/134
Filed: 2021-06-15
Abstract: L'invention concerne un matériau à entropie élevée utilisé pour fabriquer un équipement sportif. La formule générale dudit matériau est FeaNibAlcTidXeYf ; 30≤a≤35, 28≤b≤30, 10≤c≤20, 5≤d≤15, 0≤e≤20 et 0,5≤f≤1 ; X représente un élément ou une combinaison de deux éléments ou plus parmi Co, Ta, Nb, Cr, ou W ; et Y représente un élément ou une combinaison de deux éléments ou plus parmi La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er ou Tm. Dans la présente invention, par optimisation de la composition d'alliage, le matériau à entropie élevée présente des avantages par rapport aux alliages classiques et présente simultanément des caractéristiques de performance telles qu'une résistance élevée, une dureté élevée, une résistance à la trempe et une résistance au ramollissement et à l'usure. De plus, le matériau à entropie élevée est approprié pour préparer un équipement sportif tel que des composants de structure support et des raquettes.
Patent WO-2022252304-A1 (WO)
Inventor: HUANG ZHIHONG
IPC: B23Q1/25
Filed: 2021-06-21
Abstract: 本发明公开了一种具有工业机器人的组装装置及组装方法，包括底座，所述底座的顶部对称固定安装有两个立柱，且两个立柱上滑动套设有同一个支撑板，支撑板的两侧均转动连接有支撑轴，且两个支撑轴分别与两个立柱传动连接，支撑板的顶部对称滑动连接有两个移动板，两个移动板分别与两个支撑轴传动连接，两个移动板相互靠近的一侧顶部均转动连接有支撑盘，且支撑板的顶部固定安装有位于两个移动板之间的双轴电机。本发明能够实现对主轴工件进行稳定的夹紧定位，并且通过启动双轴电机能够实现带动主轴工件进行转动，即可在对主轴工件进行定位夹紧之后，方便进行转动，所以可方便对主轴工件进行组装和加工，因此具有良好的实用性。
Patent WO-2021259347-A1 (WO)
Inventor: HAN LEI
IPC: B01J29/06
Filed: 2021-06-24
Abstract: Disclosed are a ZSM-5/β core-shell molecular sieve and the synthesis and use thereof. The molecular sieve comprises a core phase composed of at least two ZSM-5 molecular sieve grains and a shell layer composed of a plurality of β molecular sieve grains, wherein the ZSM-5 molecular sieve grains have an average grain size of 0.05-15 μm, the core-shell molecular sieve has a shell coverage of 50-100% and a shell thickness of 10-2000 nm, and the average grain size of the β molecular sieve grains in the shell is 10-500 nm. The ratio of the peak height of the diffraction peak at 2θ = 22.4° to the peak height of the diffraction peak at 2θ = 23.1° in the X-ray diffraction spectrum of the ZSM-5/β core-shell molecular sieve is 0.1-10 : 1. The ZSM-5/β core-shell molecular sieve has a good catalytic performance.
Patent WO-2022017134-A1 (WO)
Inventor: Fu Wanzeng
IPC: G06T15/00
Filed: 2021-06-29
Abstract: 本公开提供了一种点云数据的处理方法、装置、电子设备及存储介质，其中，该处理方法包括：对获取的目标场景中的点云数据进行栅格化处理，得到栅格矩阵；栅格矩阵中每个元素的值用于表征对应的栅格处是否存在目标点，所述目标点表示所述点云数据对应的任一点；根据所述栅格矩阵以及所述目标场景中的待识别对象的尺寸信息，生成与所述待识别对象对应的稀疏矩阵；基于生成的所述稀疏矩阵，确定所述待识别对象在所述目标场景中的位置。
Patent WO-2022174542-A1 (WO)
Inventor: ZHANG JIALIN
IPC: G06F9/30
Filed: 2021-06-29
Abstract: Disclosed in the present application is a data processing method. The method is applied to a processor, wherein the processor comprises a Single Instruction Multiple Data (SIMD) computing unit, a compiler, an instruction decoder, and a microcode read-only memory; and the microcode read-only memory is used for storing a correspondence between a first instruction and at least two sub-instructions. The method specifically comprises: the compiler obtains a task of data processing, and compiles the task into the first instruction; the instruction decoder obtains the first instruction, and decomposes the first instruction into sub-instructions according to the correspondence between the first instruction and the at least two sub-instructions; and finally, the SIMD computing unit executes the sub-instructions to obtain a processing result of the task of data processing. Vectorized computation of complex mathematical tasks is implemented by means of cooperation between the compiler and the instruction decoder.
Patent WO-2022012507-A1 (WO)
Title: Electronic device
Inventor: HE YISONG
IPC: G02F1/153
Filed: 2021-07-13
Abstract: The present application provides an electronic device, comprising: a battery; a main board, the battery being connected to the main board, and the main board being provided with a first controller; and a housing, the battery and the main board being mounted in an inner cavity of the housing, and the housing comprising a rear cover, wherein the rear cover comprises an electrochromic layer, the electrochromic layer being connected to the main board; and the first controller is used to control the powering on of the electrochromic layer, and the color displayed by the electrochromic layer when powered on is different from the color displayed when not powered on. The rear cover can change the color displayed by the electrochromic layer by controlling the power-on/power-off state of the electrochromic layer, and then change the color displayed by the rear cover, without the need to change a decorative film, achieving the advantage of convenient operation. The effect displayed by the rear cover during use is not fixed, and the user can adjust the color displayed by the rear cover according to his/her own requirements (adjusting by changing the power-on/power-off state of the electrochromic layer), so that the personalized requirements of the user can be satisfied, and the user experience with respect to the electronic device and the rear cover thereof is improved.
Patent WO-2022022547-A1 (WO)
Inventor: ZHANG WANCAI
IPC: H01M50/102
Filed: 2021-07-28
Abstract: A battery box bottom plate (100) and a battery box, wherein the battery box bottom plate (100) comprises an inner edge plate (110), a partition plate (120) and an outer edge plate (130) which are sequentially arranged at intervals in the thickness direction of the battery box bottom plate; a plurality of first separators (111) are arranged at intervals between the inner edge plate (110) and the partition plate (120); the inner edge plate (110), the partition plate (120) and two adjacent first separators (111) jointly form a first chamber (112) in an enclosed manner; a plurality of second separators (131) are arranged at intervals between the partition plate (120) and the outer edge plate (130), and the two adjacent second separators (131) form a second chamber (132) in an enclosed manner; and projections of the first separators (111) do not coincide with projections of the second separators (131) in the thickness direction of the battery box bottom plate (100).
Patent WO-2021244674-A1 (WO)
Title: 一种地铁破碎带帷幕注浆后安全性判定方法
Inventor: GAO YAN
IPC: E21D9/00
Filed: 2021-07-30
Abstract: 一种用于地铁破碎带经帷幕注浆后安全性的判定方法，包括如下步骤：确定破碎带在平面上的等效半径d p，确定接触带的计算等效半径D p，确定侵入接触带地下水位埋深z 1和地下水位至地铁顶部的距离z 2，确定侵入接触带地下水位以上土体的重度γ和地下水位以下土体的饱和重度γ sat，确定侵入接触带由于重力造成的滑塌力G，确定侵入接触带内土体的不排水抗剪强度c u，确定注浆带的厚度d z，确定注浆体的抗剪强度c c，确定注浆体具有的抵抗力K，确定接触带经过注浆后，不会发生滑塌的安全系数SF，当SF≥1.0时，不会发生滑塌；否则，当SF<1.0，发生滑塌。
Patent WO-2022227324-A1 (WO)
Title: Dispositif à semi-conducteur et son procédé de fabrication
Inventor: BAI JIE
IPC: H01L29/78
Filed: 2021-08-02
Abstract: Des modes de réalisation de la présente demande concernent une dispositif à semi-conducteur et son procédé de fabrication. Le dispositif à semi-conducteur comprend un substrat, une couche épitaxiale en SiGe, une couche de protection et une grille PMOS, la surface du substrat comprenant au moins une région PMOS ; la couche épitaxiale en SiGe est développée sur la surface du substrat et est située dans la région PMOS ; la couche de protection recouvre la surface de la couche épitaxiale en SiGe ; et la grille PMOS est située sur la surface de la couche de protection.
Patent WO-2022028449-A1 (WO)
Title: Method for stimulating the growth of a cell
Inventor: MARSHALL JOHN GREGORY
IPC: A61K38/00
Filed: 2021-08-04
Abstract: A method for stimulating the growth of a cell comprising contacting the cell with a composition comprising an isolated lens epidermal dermal growth factor.
Patent WO-2022042447-A1 (WO)
Inventor: ZHANG XIAOMENG
IPC: C08L23/16
Filed: 2021-08-20
Abstract: A polypropylene composition, a preparation method therefor, and an article made therefrom, the polypropylene composition comprising: (a) 70-95% by weight of a crystalline homo-polypropylene having a isotactic pentad fraction of 96% or more and forming a continuous matrix phase in the polypropylene composition; (b) 5-30% by weight of an ethylene-propylene elastic copolymer containing 20-35% by weight of an ethylene structure unit and 65-80% by weight of a propylene structure unit, and forming a dispersed rubber phase in the continuous matrix phase, such that the rubber phase can at least partially deform under an orientation force and form an orientation state structure, wherein the ratio of melt mass flow rate measured at 230ºC and a 2.16 kg load of the crystalline homo-polypropylene and the polypropylene composition is 0.5-2.0. The polypropylene composition and article have a high gloss and good mechanical properties, and the preparation method is simple, low in cost and environmentally friendly; and the article can be used in electric appliances, homes, packaging, automobiles, toys, or the medical field.
Patent WO-2023028906-A1 (WO)
Inventor: LIN YENFU
IPC: H03H9/02
Filed: 2021-09-01
Abstract: La présente demande concerne un procédé de traitement d'un substrat pour un filtre, et un substrat et un filtre TC-SAW. Le procédé de traitement d'un substrat pour un filtre consiste : à traiter un substrat de couche de support présentant une structure de cercle concentrique convexe, la structure de cercle concentrique convexe présentant un centre convexe et comprenant au moins deux couches de structures annulaires circulaires, et la hauteur de la structure annulaire circulaire diminuant progressivement du centre vers l'extérieur ; à lier un côté du substrat de couche de support présentant la structure de cercle concentrique convexe avec une tranche piézoélectrique pour obtenir un substrat composite ; et à polir une surface du substrat composite après l'amincissement d'une couche piézoélectrique dans le substrat composite à l'intérieur d'une plage d'épaisseurs prédéterminée. Selon la présente demande, le substrat de couche de support doté d'une morphologie de cercle concentrique convexe est utilisé, la difficulté de polissage de la couche piézoélectrique peut être considérablement réduite, et un substrat de couche piézoélectrique présentant une épaisseur sensiblement constante est obtenu, de sorte qu'un film mince de couche piézoélectrique présentant une bonne uniformité est obtenu, ce qui permet d'améliorer considérablement le rendement de puces de filtre au moyen du film mince de couche piézoélectrique.