baber/WOPTO huggingface dataset:
Patent WO-2019196853-A1 (WO)
Title: Tcp acceleration method and apparatus
Inventor: LI MING
IPC: H04L29/06
Filed: 2019-04-10
Abstract: The present application provides a transmission control protocol (TCP) acceleration method and an apparatus, belonging to the technical field of networks. Said method is applied to a first network device, the first network device supporting double-ended TCP acceleration and single-ended TCP acceleration, and said method comprises: sending a double-ended acceleration negotiation message to a second network device; determining the TCP acceleration capability of the second network device according to whether the first network device receives a double-ended acceleration acknowledgement message; when the second network device supports double-ended TCP acceleration, performing double-ended TCP acceleration on the TCP message sent to the second network device; and when the second network device does not support double-ended TCP acceleration, performing single-ended TCP acceleration on the TCP message sent to the second network device. In the present application, the first network device can perform TCP acceleration on the TCP message according to the TCP acceleration capability of the second network device, without the need of manually deploying the TCP acceleration mode of the first network device, improving the TCP acceleration efficiency.
Patent WO-2020186587-A1 (WO)
Inventor: WANG YILONG
IPC: G03B30/00
Filed: 2019-04-18
Abstract: An optical imaging lens and an imaging device, relating to the technical field of optical lenses. An optical imaging lens (100) sequentially, from an object side to an imaging side along an optical axis, comprises: a first lens (L1) having a positive optical power, and an imaging side surface (S4) thereof being concave; a second lens (L2) having a negative optical power; and a third lens (L3) having a negative optical power; the optical imaging lens (100) satisfies conditional expressions: (dn/dt) 1 <-5.506×10 -6 /°C; (dn/dt) 2 <2.97×10 -6 /°C; (dn/dt) 3 <-1.22×10 -4 /°C, wherein (dn/dt) 1  indicates a refractive index temperature coefficient of the first lens (L1) within a range of 0-60°C; (dn/dt) 2  indicates a refractive index temperature coefficient of the second lens (L2) within a range of 0-60°C; and (dn/dt) 3  indicates a refractive index temperature coefficient of the third lens (L3) within a range of 0-60°C. According to the optical imaging lens (100), by reasonably combining lens shapes and the focal power combination among the lenses, changes between dn/dt lenses are offset from each other, without the need for automatic focus.
Patent WO-2019214456-A1 (WO)
Inventor: ZHANG YUNJUN
IPC: G09B21/04
Filed: 2019-04-26
Abstract: 一种肢体语言翻译系统，包括终端设备与云端分布式服务；终端设备通过网络与云端分布式服务连接；其中，终端设备包括：阵列麦克风、摄像头、身体动作感知模块、声音输入模块；云端分布式服务包括：肢体识别服务、肢体翻译服务、肢体合成服务、语音识别服务、语音合成以及机器翻译。该系统通过将肢体动作转换为对应的文字或语音，实现了翻译的多样化，对于具有语言障碍的人员或者外国人起到了很好的辅助作用，实现了其与他人的正常沟通。
Patent WO-2019228385-A1 (WO)
Title: Method and apparatus for managing virtual private network
Inventor: ZHUANG SHUNWAN
IPC: H04L12/46
Filed: 2019-05-29
Abstract: The present application discloses a method for managing a virtual private network (VPN). The method comprises: a routing apparatus establishing, with a Border Gateway Protocol (BGP) Monitoring Protocol (BMP) server, a BMP session; the routing apparatus allocating a VPN tag associated with a VPN instance, wherein the VPN instance enables the routing apparatus to communicate with another routing apparatus; and then, the routing apparatus sending to the BMP server a BMP message carrying the VPN tag. Since the routing apparatus sends the VPN tag via the BMP message, the routing apparatus does not need to establish a BGP neighbor relationship with the BMP server to send the VPN tag, thereby improving network efficiency.
Patent WO-2020001431-A1 (WO)
Inventor: XIN ANMIN
IPC: H04N7/18
Filed: 2019-06-25
Abstract: 本申请公开了一种摄像装置和播放装置，属于计算机技术领域。包括：多媒体采集模块、编码分析模块和数据封装模块；多媒体采集模块的输出端与编码分析模块的输入端相连，编码分析模块的输出端与数据封装的输入端相连；多媒体采集模块，用于采集第一多媒体数据，将第一多媒体数据传输至编码分析模块；编码分析模块，用于提取第一多媒体数据中的第一特征信息，对第一多媒体数据和第一特征信息进行编码，将得到的第二多媒体数据和第二特性信息传输至数据封装模块；数据封装模块，用于对第二多媒体数据和第二特征信息进行封装，得到第三多媒体数据。本申请缩短了处理时长，降低了摄像装置的延时，并且提高了摄像装置摄像的精准性。
Patent WO-2020119173-A1 (WO)
Title: 推送信息的方法和装置
Inventor: LI CUN
IPC: G06F16/9535
Filed: 2019-08-23
Abstract: 本申请实施例公开了推送信息的方法和装置。该方法的一示例实施方式包括：获取候选集合运算表达式集，其中，候选集合运算表达式用于表示对至少一个预设用户标识集的集合运算；对于候选集合运算表达式集中的候选集合运算表达式，响应于接收到与该候选集合运算表达式对应的推送指示，判断该候选集合运算表达式的运算结果集是否为空集，其中，推送指示设置为指示向该候选集合运算表达式的运算结果集指示的用户所使用的终端设备推送目标信息；响应于确定该候选集合运算表达式的运算结果集不为空集，向该候选集合运算表达式的运算结果集指示的用户所使用的终端设备推送目标信息。
Patent WO-2020043035-A1 (WO)
Inventor: ZHOU XING
IPC: A61B1/06
Filed: 2019-08-26
Abstract: A multi-lens oral cavity observation system (100) is disclosed, comprising a housing (1), a power source (2), an illumination system (3), an observation system (4), an electric circuit system (5) and a switch (6). The observation system (100) comprises at least two cameras (41-2). The cameras (41-2) comprise a close focus lens (41-21) for observing an interior of an oral cavity and a camera (41-22) for capturing a face of a person. A lens switch (61) allows for switching between a working state of the close focus lens (41-21) and a working state of the camera (41-22) for photoing a face of a person, such that the multi-lens oral cavity observation system (100) can photograph an object at a far distance, such as a human face, as well as an interior of an oral cavity at a near distance, and store both an image of the human face and a morphology of the interior of the oral cavity in a display system (41-3) at the same time, thus effectively avoiding confusion of data collected from different subjects. An oral cavity observation system (100) with an identity recognition device is disclosed, comprising a housing (1), a power source (2), an illumination system (3), an observation system (4), an electric circuit system (5), a switch (6) and an identity recognition device (7). The observation system (4) comprises a camera (41-2) for observing, photographing or videoing an interior of an oral cavity. Data collected by the camera (41-2) is processed by a data processing system (41-1) and then transmitted to a display system for display and recording. The identity recognition device (7) can acquire an identity feature of a subject, such as a facial image, fingerprint, iris, etc., thus effectively avoiding confusion of data collected from different subjects.
Patent WO-2020232886-A1 (WO)
Title: 一种视频行为识别方法、装置、存储介质和服务器
Inventor: ZHOU JUNKUN
IPC: G06N3/08
Filed: 2019-08-29
Abstract: 本申请涉及计算机技术领域，提出一种视频行为识别方法、装置、存储介质和服务器。首先获取待识别视频，从所述待识别视频中提取出多帧视频图像；然后将所述多帧视频图像输入预先训练完成的神经网络模型，以获得该神经网络模型输出的行为识别结果。本申请在该神经网络模型的结构中添加了以下数据处理逻辑：获取所述多帧视频图像的图像处理数据，该图像处理数据为包含图像全局特征信息的四维矩阵，通过对该四维矩阵进行卷积处理，能够得到包含图像局部特征信息的四维矩阵，然后将该包含图像全局特征信息的四维矩阵和该包含图像局部特征信息的四维矩阵分别平铺后再相乘，从而将视频图像的局部特征与全局特征相结合，能够提高视频行为识别的准确率。
Patent WO-2021035722-A1 (WO)
Inventor: WANG SHUAI
IPC: H04J3/06
Filed: 2019-08-30
Abstract: La présente invention concerne un procédé de vérification du fonctionnement d'un capteur, lequel procédé consiste à amener un capteur à obtenir des données de capteur (1215) à un premier instant, le capteur obtenant les données de capteur par émission d'ondes vers un détecteur; à déterminer que le détecteur a détecté les ondes (1220) à un deuxième instant; à recevoir les données de capteur à partir du capteur (1225) à un troisième instant; et à vérifier le fonctionnement du capteur (1230) sur la base d'au moins l'un parmi le premier instant, le deuxième instant et le troisième instant.
Patent WO-2021046693-A1 (WO)
Inventor: WANG DAOHUI
IPC: G06F3/06
Filed: 2019-09-09
Abstract: La présente invention se rapporte au domaine technique du stockage de données, et porte sur, en particulier, un procédé de traitement de données dans un système de stockage, et sur un système de stockage. Dans le procédé, un client envoie un bloc de données sur une bande et des métadonnées du bloc de données à un nœud de stockage de données, et envoie les métadonnées du bloc de données et un bloc de vérification à un nœud de stockage de vérification, de telle sorte que les métadonnées du bloc de données sont sauvegardées sur le nœud de stockage de vérification, ce qui permet de réduire le temps requis pour une opération d'écriture.
Patent WO-2020155638-A1 (WO)
Title: 丝杠驱动主动液体调谐质量阻尼器
Inventor: ZHANG CHUNWEI
IPC: E04H9/02
Filed: 2019-09-12
Abstract: 本发明涉及系统中振动的抑制领域，具体而言，涉及一种丝杠驱动主动液体调谐质量阻尼器，其包括驱动壳体、支撑板以及主动控制装置，主动控制装置包括驱动器、移动质量体、丝杠以及轴承；驱动壳体固定在被控物体上，支撑板固定在驱动壳体内部，支撑板上安装有驱动器，驱动器连接丝杠，丝杠另一端通过轴承固定在驱动壳体外壁上，移动质量体连接在丝杠上，本发明解决了现有技术中传统TMD/AMD对结构振动控制效果有限；被动调谐转动惯量阻尼器控制适用鲁棒性低、调频技术复杂、适用范围小；主动不可变驱动质量块的阻尼器，在结构发生改变时有失效的风险，灵活性低的问题。
Patent WO-2020119239-A1 (WO)
Inventor: ZHANG TONG
IPC: H04R9/02
Filed: 2019-10-14
Abstract: Provided is a loudspeaker, comprising: a bowl-shaped frame; a vibration diaphragm fixed at the bowl-shaped frame; and a voice coil positioned under the vibration diaphragm and used to drive the vibration diaphragm to vibrate and emit sound. The vibration diaphragm comprises a dome portion and a curved ring bending and extending from the dome portion. The dome portion comprises a protruding platform positioned at a central region and a peripheral portion arranged around the protruding platform. In the loudspeaker of the present invention, a protruding platform is provided at a central region of a dome portion, and a resulting recess portion structure increases strength of the dome portion, suppresses divided vibration in a high frequency range, improves performance of a product at high frequencies, enhances sound quality, improves acoustic performance of the product, and effectively improves reliability of the product.
Patent WO-2021077384-A1 (WO)
Title: 一种声学与光学结合的乳腺检测装置及检测方法
Inventor: LI DELAI
IPC: A61B8/00
Filed: 2019-10-25
Abstract: 一种声学与光学结合的乳腺检测装置和方法，包括支撑部(1)，支撑部(1)内设有主机，还包括有移动部(2)，钳制部(3)与检测部，移动部(2)嵌套固定在支撑部(1)上方，检测部可移动固定在移动部(2)的正面，钳制部(3)固定在移动部(2)的侧面并与检测部相匹配，钳制部(3)内部与耦合模块(8)、超声模块(6)、光学模块(7)相匹配。这一声学与光学结合的乳腺检测装置和方法通过增设耦合模块(8)，使超声模块(6)与光学模块(7)能够进行光声耦合检测，通过流体罩(81)维持待检测部位的形状，大幅度提高了检测后图像的合成效率，提高了乳腺疾病检测的准确性。
Patent WO-2020093895-A1 (WO)
Inventor: LV YANFEN
IPC: D06F39/00
Filed: 2019-10-28
Abstract: The present invention relates to the field of household appliances, in particular to a washing device, and aims to solve the problem of inconvenience in operation due to a display operation module being blocked when the washing device is placed in a narrow space. The washing device according to the present invention comprises a cabinet; the cabinet comprises a top panel and a plurality of side panels, and further comprises a first display operation module provided on one of the panels and at least one second display operation module provided on at least one of the other panels. The first display operation module and the second display operation module may receive an input instruction to control the washing device and/or display status information of the washing device. Each display operation module may be set to an operation mode, a display mode or a lock mode according to usage scenarios. The present invention not only overcomes the problem of inconvenient operation of washing devices which only have one display operation module when the module is blocked, but also achieves organic cooperation between the display operation modules, thereby fully meeting the usage habits of a user and improving the user experience.
Patent WO-2020143293-A1 (WO)
Inventor: LIU ZHE
IPC: H04L5/00
Filed: 2019-11-07
Abstract: The present application provides an information reporting method and a communication apparatus. The method comprises: a first device receives first indication information from a second device, the first indication information being used for indicating at least two block error ratios (BLERs); the first device reports channel quality indicator (CQI) respectively corresponding to the at least two BLERs to the second device by means of at least two physical uplink control channel resources, wherein the at least two physical uplink control channel resources correspond to the at least two BLERs, respectively. The first device can reasonably use the physical uplink control channel resources to report the CQI respectively corresponding to the at least two BLERs to the second device so as to reasonably allocate the size of a downlink transmission data block and ensure that the optimal downlink performance is obtained for the first device.
Patent WO-2021027151-A1 (WO)
Inventor: ZHANG CONGCONG
IPC: H01M10/42
Filed: 2019-11-13
Abstract: Disclosed is a method for preparing a lithium battery, comprising: providing an insulating film; preparing at least one first electrode layer on the insulating film at least by wiping with a first slurry which is obtained by mixing an electrolyte as a solvent with a first electrode material; preparing an isolating wiping film on the first electrode layer by wiping with a second slurry which is obtained by mixing the electrolyte as a solvent with an isolating material; preparing at least one second electrode layer on the isolating wiping film at least by wiping with a third slurry which is obtained by mixing the electrolyte as a solvent with a second electrode material; and packaging the insulating film and the prepared first electrode layer, the isolating wiping film and the second electrode layer to obtain a lithium battery. The present invention solves the problem that a breakthrough in the material performance is difficult during the lithium battery preparation process, and the lithium battery cannot meet the requirements of a high energy density, a high power density, and a long cycle lifetime.
Patent WO-2021051577-A1 (WO)
Inventor: ZHAN XIAOJIE
IPC: G10L25/03
Filed: 2019-11-13
Abstract: 一种语音情绪识别方法、装置、设备及存储介质，其中，方法包括：获取待识别语音片段（S1）；对获取的待识别语音片段进行预处理（S2），包括：对所述待识别语音片段进行分帧处理，得到多帧语音；用预先训练生成的情绪识别模型对所述多帧语音进行处理，以得出多个情绪识别结果，每个情绪识别结果与一帧语音或设定数量帧语音相对应（S3）；根据所述多个情绪识别结果得到与所述待识别语音片段对应的情绪（S4）。通过得到与每一帧或多帧语音对应的情绪，将对语音的情绪识别减小到毫秒级，更加接近对语音片段情绪的实时连续预测，提高语音情绪识别的准确率。
Patent WO-2020119372-A1 (WO)
Title: 场强预测方法、装置、设备及存储介质
Inventor: QIU RUITAO
IPC: H04B17/318
Filed: 2019-11-13
Abstract: 本发明公开了一种场强预测方法、装置、设备及存储介质。其中，场强预测方法，包括：在数据全集中获取与目标场景统计量特征相似的参考场景；基于目标场景的部分参数与所述参考场景中相应的历史参数进行模型训练，从而得到预测模型；使用所述预测模型对目标场景的其他参数进行预测。选取统计量特征相似的参考场景，基于目标场景的部分参数和参考场景的历史参数进行模型训练，并基于训练得到的预测模型对目标场景中的其他参数进行预测，通过基于目标场景的部分参数和参考场景的历史参数进行模型训练，对预测模型进行修正，从而得到更优的预测模型，使预测模型具有更高的场强预测精度，从而提高了场强预测的精度。
Patent WO-2021092907-A1 (WO)
Title: Melting device for macromolecule membrane production
Inventor: REN TIANRUI
IPC: B29B13/02
Filed: 2019-11-15
Abstract: A melting device for macromolecule membrane production, comprising a melting furnace body (1); a fixing chassis (2) is fixedly mounted to a lower surface of the melting furnace body (1); a control electric box (4) is fixedly mounted to a lower surface of the fixing chassis (2); a heating electric plate (5) is fixedly mounted to an inner surface of the melting furnace body (1); a motor fixing frame (6) is fixedly mounted to an outer surface of one side of the melting furnace body (1); a rotary motor (7) is fixedly mounted to an upper surface of the motor fixing frame (6); a motor rotary shaft rod (8) is rotatingly mounted to an outer surface of one side of the rotary motor (7); and a fixing disc (9) is fixedly mounted to an outer surface of one end of the motor rotary shaft rod (8). When a material is being heated and melted, the melting device can turn over and stir the material, such that the material is evenly heated, thus improving melting efficiency; in addition, high-temperature heat inside of the device can be rapidly discharged after the material has been heated and melted, thus preventing the heat from impacting an operator.
Patent WO-2021119961-A1 (WO)
Inventor: Gong ji
IPC: B26D7/14
Filed: 2019-12-16
Abstract: Disclosed is a cutting device for a flexible thin film material, the cutting device comprising a transverse movement driver (23), and a thin film suctioning mechanism (27). The thin film suctioning mechanism (27) comprises: a suction base plate (271), which is in transmission connection with a power output end of the transverse movement driver (23); an ejection driver (272) and a suction nozzle (273), which are fixedly mounted on the suction base plate (271), the suction nozzle (273) being arranged at the front end of the suction base plate (271); and an ejection assembly (274), which is arranged between the ejection driver (272) and the suction nozzle (273) and is driven by the ejection driver (272). Clamping mechanisms are respectively arranged directly above and directly below the thin film suctioning mechanism (27), so as to enable a material section to be cut to be in a tightened state, so that cutting failure due to deformation of material in a cutting process is reduced as much as possible, therefore increasing the success rate of cutting, saving on production raw materials, and improving the production benefits of enterprises.
Patent WO-2021120017-A1 (WO)
Inventor: XU BIN
IPC: H04W68/02
Filed: 2019-12-17
Abstract: Disclosed are a communication method and apparatus. The method comprises: a terminal device or a network device obtains a first identifier of a first service and determines a first paging occasion according to the first identifier, the first paging occasion being used for the terminal device to receive a first message; the first message being used for paging the terminal device. According to the method, the first paging occasion is determined according to the first identifier, so that the network device can page, on the first paging occasion, a plurality of terminal devices that need to receive data of the first service. Compared with a mode in which the network device pages on paging occasions respectively corresponding to the plurality of terminal devices, on the one hand, the paging signaling overhead can be effectively reduced, and thus the resource overhead is reduced; on the other hand, the network device does not need to calculate the paging occasions corresponding to the plurality of terminal devices, respectively, so that the processing burden of the network device can be effectively reduced.
Patent WO-2021031485-A1 (WO)
Title: Acoustic device and electronic apparatus
Inventor: ZHANG JUN
IPC: H04R1/02
Filed: 2019-12-24
Abstract: Disclosed in the present invention is an acoustic device, comprising a sound production unit. Sound waves on a front side of a vibrating diaphragm of the sound production unit radiate outwards by means of a sound outlet; a first closed cavity is formed in a rear side of the vibrating diaphragm, a mounting hole is provided in a cavity body wall of the first closed cavity, a flexible deformation part is arranged on the mounting hole, and a second closed cavity is arranged outside the first closed cavity and used for sealing sound waves, generated when the flexible deformation part deforms, in the second closed cavity; a protective cover plate located outside the flexible deformation part is further arranged on the mounting hole and comprises a fixing face, a protective face and a connection wall, and the fixing face is connected to the cavity body wall; and vent holes are provided in the protective face and/or the connection wall, a dustproof net covering the vent holes is arranged on the protective cover plate, and the shape of the dustproof net is basically consistent with that of the protective cover plate. The acoustic device according to the present invention can effectively reduce resonant frequency and substantially improve low-frequency sensitivity of a product as a whole.
Patent WO-2020238190-A1 (WO)
Inventor: ZENG YAN
IPC: H04B3/54
Filed: 2019-12-25
Abstract: The present application relates to the technical field of power line communications, and provides a method for transmitting data, a node, and a storage medium. The method comprises: when data is sent in parallel in a PLC network, a first node can broadcast a concurrent indication message, wherein the concurrent indication message comprises a transmission time slot for transmitting data in parallel; then the first node can select a node set for concurrent transmission, and only sends a data transmission notification to each node in the node set, the data transmission notification being used for indicating that each node in the node set sends data outward from a target time point in the transmission time slot. The adoption of the present application can improve the transmission rate of the PLC network.
Patent WO-2020155984-A1 (WO)
Inventor: LYU SHAOHUI
IPC: G06V10/70
Filed: 2019-12-27
Abstract: 一种人脸表情图像处理方法、装置、电子设备和计算机可读存储介质。其中该人脸表情图像处理方法包括：获取第一图像，所述第一图像中包括人脸图像（S101）；识别所述人脸图像的人脸表情（S102）；响应于识别出所述人脸表情为第一人脸表情，对所述人脸图像做第一处理，得到第一人脸图像（S103）；将所述第一人脸图像覆盖在所述人脸图像的位置，得到第一图像效果（S104）。通过人脸的表情来控制人脸图像效果的生成结果，解决了现有技术中的图像效果制作复杂和处理效果固定、无法灵活配置处理效果的技术问题。
Patent WO-2021027243-A1 (WO)
Inventor: LIN JINGFU
IPC: H02K1/27
Filed: 2020-04-21
Abstract: Disclosed is a built-in permanent magnet electric motor rotor punching sheet, comprising: a punching sheet main body (1), wherein eccentric cambered surfaces (2) and bosses are arranged at a peripheral edge of the punching sheet main body at intervals, the boss is sequentially provided with a first inclined surface (3), a concentric cambered surface (4) and a second inclined surface (5), the circle center of the concentric cambered surface (4) and the circle center of the punching sheet main body (1) are the same, and the circle center of the eccentric cambered surface (2) is located on the punching sheet main body (1) and is different from the circle center of the punching sheet main body (1).
Patent WO-2020140927-A1 (WO)
Title: Cancer treatment using multi-targeted kinase inhibitor in combination of protein kinase biomarkers
Inventor: YANG LAN
IPC: G01N33/50
Filed: 2020-01-02
Abstract: Provided herein are methods of treating cancer in a patient with a tyrosine kinase inhibitor. The method comprises: a) measuring the expression level of a protein kinase in a sample obtained from the patient; b) comparing the expression level of the protein kinase to a corresponding reference expression level; c) determining a likelihood of the patient being responsive to the tyrosine kinase inhibitor; and d) treating the patient whose expression level of the protein kinase indicates that the patient will be responsive with the tyrosine kinase inhibitor.
Patent WO-2020233137-A1 (WO)
Inventor: Zhou Yashun
IPC: G06F17/15
Filed: 2020-01-08
Abstract: A method and apparatus for determining a value of a loss function, and an electronic device. The method is used for determining a value of a loss function. The loss function comprises a first term and a second term. The method comprises: secretly sharing first data with a cooperating party according to a share of a first parameter to obtain a share of the first data (S21); determining a share of a value of a first term according to the share of the first data (S23); secretly sharing second data with the cooperating party according to a share of a second parameter and a random number to obtain a share of the second data (S25); determining a coefficient of a second term according to the random number (S27), the coefficient of the second term and the second data being used for jointly determining a value of the second term; and sending the share of the value of the first term, the share of the second data, and the coefficient of the second term to the cooperating party so that the cooperating party determines a value of a loss function (S29).
Patent WO-2021128514-A1 (WO)
Title: 一种塑料振子单元及天线
Inventor: XIE WUWEN
IPC: H01Q1/36
Filed: 2020-01-14
Abstract: 本发明提供了一种塑料振子单元，包括一个塑料基层和设于所述塑料基层上的多个塑料振子，所述塑料基层上附着设有第一空气微带电路，每个所述塑料振子的上方设有上层空气贴片，所述上层空气贴片设有由第二空气微带电路形成的第一开窗；每个所述塑料振子的下方设有的下层空气贴片，所述下层空气贴片设有由第三空气微带电路形成的第二开窗。本发明还提供一种包括有所述塑料振子单元的天线。借此，本发明不仅具有高精度、高性能、低重量和低成本的优势，而且可以实现低剖面、小型化