baber/WOPTO huggingface dataset:
Patent WO-2019127076-A1 (WO)
Inventor: JIANG WANLI
IPC: B60W30/09
Filed: 2017-12-27
Abstract: Examples of the present disclosure describe a method and an apparatus in automated driving vehicles for reducing collision risk is provided. The method comprises: obtaining a digital map; obtaining a collision risk map related to the digital map, wherein the collision risk map represents a collision risk distribution on the digital map which at least comprises a distribution of high-collision-risk areas having collision risks higher than a predetermined threshold; determining collision risks from the obtained collision risk map for at least a portion of the digital map related to a travelling path of the vehicle; and making vehicle control decisions based on the determined collision risks to reduce the collision risk.
Patent WO-2018133711-A1 (WO)
Title: 一种桥墩基础及其施工法
Inventor: WANG YUBIN
IPC: E02D27/00
Filed: 2018-01-09
Abstract: 一种桥墩基础，桥墩基础(1)的底部设有供链式挖掘装置(2)运行的轨道(1-1)，链式挖掘装置(2)主要由链刀(3)和传动装置组成，链刀(3)由链条(3-1)和固定于链条(3-1)上的刀具(3-2)组成，传动装置主要由链轮(6)和驱动装置(4)组成；驱动装置(4)驱动链刀(3)，链刀(3)沿着轨道(1-1)运行，桥墩基础(1)底部的链式挖掘装置(2)挖掘岩土，垂直向上运行的链刀(3)将已挖掘的岩土送至上方，桥墩基础(1)底部的链刀(3)和桥墩基础(1)一起下降。还提供了一种桥墩基础施工方法。桥墩基础(1)自身带有链式挖掘装置(2)，不需现场整体开挖，可以在工场预制桥墩基础，也可以在现场的固定模板中边浇筑边下降，施工简单，成本低。
Patent WO-2019127748-A1 (WO)
Inventor: PEI YANLIANG
IPC: H02J7/02
Filed: 2018-01-19
Abstract: An underwater movable platform (2)-based seismic exploration system. The system comprises: an outboard electronic compartment (1), an integrated circuit device, the underwater movable platform (2), a mounting mechanism (3), a multi-electrode transmitting array (4), and a multi-channel hydrophone linear array (5). The outboard electronic compartment (1) is externally mounted and fixed on the underwater movable platform (2) by means of the mounting mechanism (3). The integrated circuit device is disposed in the outboard electronic compartment (1) and is connected to the multi-electrode transmitting array (4). The multi-electrode transmitting array (4) is connected to the multi-channel hydrophone linear array (5). The integrated circuit device comprises a multi-channel underwater acoustic data acquisition device, a sound source console, a photoelectric junction box, and a battery pack. The multi-channel underwater acoustic data acquisition device is connected to the sound source console. The photoelectric junction box is separately connected to the multi-channel underwater acoustic data acquisition device, the sound source console, the battery pack, and the multi-electrode transmitting array (4). The seismic exploration system can avoid large attenuation of acoustic waves due to deep seawater, improve the seismic exploration resolution, increase the stratum penetration depth, and improve the exploration precision.
Patent WO-2018127242-A1 (WO)
Title: 位置管理方法及装置
Inventor: WANG YING
IPC: H04W36/00
Filed: 2018-02-12
Abstract: 本公开提供一种位置管理方法及装置。所述位置管理方法包括：在终端UE发送上行数据时，网络侧保存所述UE的位置信息；或者在所述UE重选到其他小区，向接入基站发起小区变更上报过程时，网络侧更新所述UE的位置信息。
Patent WO-2018166380-A1 (WO)
Title: 自动排气阀、冷却系统和汽车
Inventor: LI WEI
IPC: F16K27/02
Filed: 2018-03-07
Abstract: 一种自动排气阀，包括设置有排气孔（211）的上阀体（2）、设置有冷却液输入管（31）和冷却液输出管（32）的下阀体（3）、设置在下阀体（3）内的浮子（5）、与该浮子（5）固定连接的顶针（4）以及阀盖（1）。在车辆冷却系统中存在气体时，气体会将浸泡浮子（5）的冷却液排出，进而在重力的作用下顶针（4）与浮子（5）一同下降，排气孔（211）被打开。在气体被排出后，冷却液重新浸泡浮子（5），在浮力的作用下浮子（5）上移直至顶针（4）再次堵塞排气孔（211）。进一步，通过阀盖（1）还能使冷却系统在被抽真空时外界气体不会进入阀体内。该自动排气阀能够将车辆冷却系统内的气体实时排出。
Patent WO-2018188438-A1 (WO)
Title: 一种图像显示方法及装置
Inventor: JU ZHENG
IPC: H04N7/01
Filed: 2018-03-09
Abstract: 本申请实施例提供了一种图像显示方法及装置，方法包括：获取待处理视频信号，待处理视频信号中包括待处理图像数据及其对应的消隐数据，当出现待处理图像数据与显示区域不匹配的情况时，获取待处理图像数据与消隐数据之间的边界相对于所述显示区域的位置，根据该位置将待处理图像数据调整至与显示区域相匹配，在显示区域显示调整后的图像数据。可见该调整后的图像数据与显示区域相匹配，这样，提高了图像的显示效果。
Patent WO-2018177140-A1 (WO)
Title: 脂质体用于治疗慢性乙型病毒性肝炎的用途
Inventor: WU YUZHANG
IPC: A61P31/20
Filed: 2018-03-16
Abstract: 公开了脂质体本身用于制备治疗慢性乙型病毒性肝炎的药物用途，其中脂质体由包括磷脂和胆固醇的物质制备而成，还公开了脂质体本身用于制备促进慢性乙型病毒性肝炎患者发生乙型肝炎E抗体转阳且乙型肝炎E抗原转阴的血清学转换、用于降低慢性乙型病毒性肝炎患者外周血血清中的乙型肝炎病毒滴度、用于降低慢性乙型病毒性肝炎患者外周血血清中的谷丙转氨酶浓度以及用于保持慢性乙型病毒性肝炎患者的T细胞受体库稳定的药物的用途。
Patent WO-2019015353-A1 (WO)
Title: Film layer patterning method, and array substrate and fabrication method therefor
Inventor: WANG JUN
IPC: H01L21/77
Filed: 2018-03-26
Abstract: A film layer patterning method, and an array substrate and a fabrication method therefor. The film layer patterning method comprises: applying a photoresist (120) on a film layer (110) to be patterned; exposing and developing the photoresist (120), a region corresponding to a portion of the photoresist (120) that is completely removed after the exposure and development being a first region (121); post-baking the photoresist (120), the photoresist (120) being melted and collapsed at a high temperature to transform the region corresponding to the completely removed portion into a second region (122), and a mask pattern being formed on the post-baked photoresist (120); and patterning the film layer (110) by using the mask pattern as a mask.
Patent WO-2019095604-A1 (WO)
Title: 一种陡脉冲电场肿瘤治疗装置
Inventor: ZHOU DINGHUA
IPC: A61N1/32
Filed: 2018-03-27
Abstract: 一种陡脉冲电场肿瘤治疗装置，陡脉冲电场肿瘤治疗装置包括壳体和安装在壳体内的脉冲发生电路，脉冲发生电路包括：用于输出控制信号的控制模块（1）；与控制模块（1）连接，用于与控制信号匹配的输入模块（2）；与输入模块（2）连接，用于输出驱动电压信号的驱动模块（3）；用于输出直流高压电源的直流高压电源模块（4）；信号输入端与驱动模块（3）连接，电源输入端与直流高压电源连接，用于在收到驱动电压信号后输出高频脉冲电流的脉冲形成模块（5）。本发明的陡脉冲电场肿瘤治疗装置具有输出的脉冲电流稳定性高的优点。
Patent WO-2019183853-A1 (WO)
Inventor: JIANG XIAOWEI
IPC: H04W4/029
Filed: 2018-03-28
Abstract: The present disclosure relates to an information reporting method and device, an information configuration method and device, a user equipment, a base station, and a computer readable storage medium. The information reporting method comprises: determining that a secondary cell group (SCG) failure occurs; reporting SCG failure-related information to the base station, the SCG failure related information comprising location information of a user equipment (UE). In an embodiment of the present disclosure, the location information is reported after the SCG failure is determined, and location information does not need to be frequently reported, thereby reducing the power consumption of the UE.
Patent WO-2019029179-A1 (WO)
Title: Actuating mechanism control method for glass plate tempering process
Inventor: ZHAO YAN
IPC: C03B27/04
Filed: 2018-04-11
Abstract: An actuating mechanism control method for a glass plate tempering process, comprising: after conveying a glass plate into a heating furnace, a monitoring unit monitors in real time energy consumed by a heating element of the heating furnace, and transmits the energy into a control unit to compare with a preset threshold; when the energy consumed by the heating element of the heating furnace is greater than or equal to the preset threshold, the control unit issues an instruction to an actuating mechanism to control the actuating mechanism to act to finish a corresponding tempering technology process. Unlike a conventional time-based control method, by monitoring in real time the energy consumed by the heating element of the heating furnace by using the monitoring unit, this method can more scientifically and accurately control a heating process of the glass plate, and therefore, a discharging moment of the glass plate is accurately determined, insufficient heating temperature or over-sintering of the glass plate is over-sintered is avoided, and the quality of finished products of tempered glass is improved.
Patent WO-2018196680-A1 (WO)
Title: 多温区半导体制冷设备
Inventor: PEI YUZHE
IPC: F25B21/02
Filed: 2018-04-19
Abstract: 一种多温区半导体制冷设备，包括箱壳(200)和设置在箱壳(200)中的多个内胆(100)，相邻两个内胆(100)之间通过绝热连接件(101)连接，每个内胆(100)形成一制冷间室，其特征在于，每个内胆(100)配置有半导体制冷模组，半导体制冷模组包括组装在一起的半导体制冷芯片(1)、热端散热器和冷端散热器，冷端散热器设置在内胆(100)上，热端散热器设置在箱壳(200)的背板上，相邻两个热端散热器之间通过导风板(300)间隔开，导风板(300)将背板分割成多个独立的散热区域，每个散热区域中设置有散热风扇(400)。该制冷设备可提高制冷设备的制冷效率并降低能耗。
Patent WO-2019091067-A1 (WO)
Title: 一种锂离子电池用氮硫共掺杂碳包覆锡/二硫化钼复合材料及其制备方法
Inventor: HE MIAO
IPC: H01M4/36
Filed: 2018-05-09
Abstract: 本发明提供了一种锂离子电池用氮硫共掺杂碳包覆锡/二硫化钼复合材料的制备方法。本发明通过将氮硫共掺杂碳，金属锡(Sn)和二硫化钼 (MoS 2 ) 进行复合，三种组分之间产生协同效应，氮硫共掺杂碳能够增加材料电子电导率和锂离子扩散速率，同时抑制了金属锡 (Sn) 体积膨胀和二硫化钼(MoS 2 ) 团聚。因此，所制备氮硫共掺杂碳包覆 Sn/MoS 2  复合材料具有优异电化学性能，表现出优异倍率性能和循环稳定性。该方法工艺简单，成本低，环境友好，适用于大规模工业生产。
Patent WO-2019019772-A1 (WO)
Title: Systems and methods for image processing
Inventor: FU JIANHAI
IPC: G06T5/00
Filed: 2018-05-11
Abstract: A method for identifying a color of an object may include obtaining a target image including the object and identifying in the target image a region of interest (ROI) including the object. The method may also include identifying at least one sub-region of the object from the ROI of the object and determining at least one first characteristic vector respectively corresponding to the at least one sub-region. The method may further include determining a second characteristic vector of the ROI of the object and identifying, based on the at least one first characteristic vector and the second characteristic vector, the color of the object using a color identification model. The method may further include correcting the color of the target image.
Patent WO-2019218235-A1 (WO)
Inventor: YANG HONGBIN
IPC: E04B1/00
Filed: 2018-05-16
Abstract: 一种强电电线（5b）与主体结构分离的住宅的施工方法，施工过程中，于住宅的房间顶部设置天花吊顶、房间的墙板上设置纵向凹槽，从而可以将强电电线（5b）布设于天花吊顶内然后通过墙板上的纵向凹槽向下延伸至插座位置。可见，通过本施工方法，可以将强电电线（5b）与房间的主体结构分离，克服了传统预埋强电电线（5b）维修时需开凿楼板、墙板的弊端，实现了强电电线（5b）与主体结构分离；能减少对结构主体的破坏，大大增加了房屋安全可靠性、耐久性。
Patent WO-2019128044-A1 (WO)
Title: 一种轴距可调的多轴箱装置
Inventor: YU DAOYUAN
IPC: F16H7/02
Filed: 2018-05-16
Abstract: 本发明公开了一种轴距可调的多轴箱装置，机械加工领域，其包括箱体及设置在所述箱体内并可以传动带匹配传动的输入轴和多根输出轴，通过在箱体上开设有输出轴滑移槽来用于各输出轴在该滑移槽中往复滑动，从而实现了各输出轴之间轴距的快速调节，并通过设置移动支撑组件、轴承、轴承端盖和螺纹槽等结构，实现了传动带的快速安装和拆卸，以及各输出轴在轴距调节后的稳固定位。本发明的轴距可调的多轴箱装置，其结构简单，拆装便捷，维护成本较低，能有效快速实现输出轴轴距的调节和输出轴的固定连接，降低多轴箱的应用成本，提升了多轴箱的加工精度和加工效率，极大地推动了多轴箱的应用。
Patent WO-2019205220-A1 (WO)
Title: Radiotherapy apparatus and beam limiter therefor
Inventor: DENG HUAIHUAI
IPC: A61N5/10
Filed: 2018-05-28
Abstract: Disclosed is a beam limiter, comprising a rotary collimator. The rotary collimator comprises a truncated cone-shaped housing that has a central cavity and that has several rotation collimating holes, which have different apertures and are parallel to the generatrix, radially distributed on a side surface thereof; a drive device for driving the truncated cone-shaped housing to rotate; an angle detection device for detecting the angle of the truncated cone-shaped housing; and a control device connected to the drive device and the angle detection device respectively and used for receiving a signal sent by the angle detection device and controlling the starting or stopping of the drive device based on the received signal. In the usage of the collimator, the angle detection device and the control device together control the automatic rotation or stopping of the drive device, and the truncated cone-shaped housing automatically rotates or stops therewith to complete the change of a radiation field, thereby eliminating the repeated replacement of the collimator. Therefore, the radiation field can be easily, quickly and automatically changed by the collimator provided in the present application. Further disclosed is a radiotherapy apparatus comprising the beam limiter.
Patent WO-2018224018-A1 (WO)
Inventor: LIU TAO
IPC: F01M1/18
Filed: 2018-06-07
Abstract: 一种配气机构 (1000)包括气门(103)、凸轮轴(101)、固定支架(108)、中间摆臂(106)、支承座(107)，固定支架(108)设置有上下贯通的连接部过孔(204)，且连接部(201)内形成有两个油道(205)，每个油道(205)与连接部过孔(204)和对应的中间摆臂轴孔(203)相连，支承座(107)内形成有支承座第一上油道(303)和支承座第二上油道(304)，支承座第一上油道(303)连通连接部过孔(204)，支承座第二上油道(304)的上端延伸至支承座(107)的座体凸轮轴支承部(302)。还涉及一种发动机和车辆。在实际使用中，配气机构的结构更加紧凑，保证了润滑机油的压力，满足了零件的冷却和润滑需求。
Patent WO-2018228412-A1 (WO)
Title: 更换手机卡的方法和设备
Inventor: ZHAO YUNKAI
IPC: H04W8/20
Filed: 2018-06-13
Abstract: 本申请实施例提供一种更换手机卡的方法和设备。其中，更换手机卡的方法包括：通过SIM卡向服务器发送第一USSD消息，第一USSD消息用于请求获得验证码，通过SIM卡接收服务器返回的验证码，在将SIM卡更换为USIM卡之后，通过USIM卡向服务器发送第二USSD消息，第二USSD消息用于请求将SIM卡更换为USIM卡，通过USIM卡接收服务器返回的第一确认消息，通过USIM卡向服务器发送第三USSD消息，通过USIM卡接收服务器返回的第二确认消息。本申请实施例提供的更换手机卡的方法，可以实现自助换卡，节省了用户和运营商的时间成本，提升了用户感受。
Patent WO-2019210553-A1 (WO)
Title: Microcirculation resistance index calculation method based on angiogram image and hydrodynamics model
Inventor: HUO YUNFEI
IPC: A61B5/02
Filed: 2018-06-13
Abstract: A microcirculation resistance index (IMR) calculation method based on an angiogram image and a hydrodynamics model, comprising: selecting coronary angiogram images of two positions for carrying out segmentation so as to obtain the center line and diameter of a coronary artery (S01); generating a three-dimensional coronary artery model (S02); acquiring blood transit mean time (Tmn) and speed (S03); establishing a three-dimensional blood vessel grid; generating a two-dimensional axially symmetrical plane model on the basis of the center line and the diameter of the coronary artery from X-ray reconstruction, then establishing two-dimensional axially symmetrical blood vessel grids (S04); measuring mean blood pressure Pa of the aorta (S05); solving a fundamental formula of incompressible flows on the basis of the obtained blood flow speed and the generated three-dimensional blood vessel grid, calculating the pressure drop ΔPi of each point from the entrance to the downstream along the blood vessel center line, and obtaining the coronary artery far-end artery pressure Pd=Pa-ΔPi (S06); and calculating a microcirculation resistance index IMR=Pd*Tmn (S07). The described method does not require the use of pressure guide wires.
Patent WO-2019192106-A1 (WO)
Title: Information reminding method, terminal device, and computer readable storage medium
Inventor: WANG PEIQIANG
IPC: G06Q10/10
Filed: 2018-07-27
Abstract: The present application is applicable to the technical field of information processing, and provides an information reminding method, a terminal device, and a computer readable storage medium. The information reminding method comprises: obtaining information about an affair to be handled inputted by a user for describing a first affair to be handled, selecting information to be used for reminding, which is used for reminding a second affair to be handled, from a preset reminding information library by means of a reminding information recommendation model and according to the information about the affair to be handled, and on the basis of an input mode of the information about the affair to be handled, determining target reminding information from the information to be used for reminding for displaying, so that when information about an affair to be handled is inputted under different operation scenarios, different contents associated with the information about the affair to be handled can be provided for reminding, and the contents of reminding information are enriched.
Patent WO-2020000565-A1 (WO)
Inventor: TONG JINFENG
IPC: D03D15/56
Filed: 2018-08-01
Abstract: A highly elastic and confortable fabric is formed by weaving warp yarns and weft yarns together. The warp yarns are formed by blending polynosic, cuprammonium rayon, and spandex. The weft yarns are formed by blending and weaving cuprammonium rayon and polynosic. The blending ratio of the polynosic to the cuprammonium rayon to the spandex in the warp yarns is 2:3:2, and the blending ratio of the cuprammonium rayon to the polynosic in the weft yarns is 1:1. The fabric features soft handle, soft luster, high elasticity, silky touch, good hygroscopicity, high wear resistance, excellent moisture absorption-desorption properties, high freshness, and excellent anti-static properties.
Patent WO-2019196283-A1 (WO)
Title: Epidemic disease prediction method, computer device and non-volatile readable storage medium
Inventor: RUAN XIAOWEN
IPC: G06Q10/04
Filed: 2018-08-09
Abstract: An epidemic disease prediction method, the method comprising: acquiring time series data concerning epidemic disease monitoring; calculating the probability of a time point corresponding to each piece of epidemic disease monitoring data in the time series data being an epidemic season/non-epidemic season turning point, to obtain a set of probability sequences; determining probability peaks in the probability sequences, to obtain a probability peak sequence; screening the probability peaks in the probability peak sequence, and obtaining an epidemic season/non-epidemic season turning point of the time series data according to the probability peaks obtained after the screening; determining the type of each epidemic season/non-epidemic season turning point, the type comprising an ascending turning point and a descending turning point, the ascending turning point being a starting point of the epidemic season of the epidemic disease, the descending turning point being an ending point of the epidemic season of the epidemic disease. The present application further provides a computer device and a readable storage medium. The present application can achieve high-efficient and rapid epidemic disease prediction.
Patent WO-2020019382-A1 (WO)
Inventor: FAN ZHEYAN
IPC: A44C11/00
Filed: 2018-08-17
Abstract: 一种DIY组合式首饰，包括有链模块（1）和装饰模块（2），链模块（1）和装饰模块（2）依次逐个连成一串；链模块（1）包括有链条（11）、设置在链条（11）端部的第一连接件（12）；装饰模块（2）包括有装饰体（21）、设置在装饰体（21）两侧的第二连接件（22）；相邻的链模块（1）与装饰模块（2）之间通过第一连接件（12）和第二连接件（22）的配合可拆卸连接。通过将不同样式的链条（11）和第一连接件（12）连接形成链模块（1），并将不同样式的装饰体（21）和第二连接件（22）连接形成装饰模块（2），然后将多个不同样式的链模块（1）和装饰模块（2）随意排列组合连成一串即可得到许多种款式的首饰产品；并且由于链模块（1）和装饰模块（2）之间的连接是可拆卸的，因此使用者完全可以根据自己的喜好随时改变首饰的款式，从而达到时刻保持首饰佩戴新意的目的。
Patent WO-2020041949-A1 (WO)
Inventor: ZHU ZIYAN
IPC: A61B8/00
Filed: 2018-08-27
Abstract: An ultrasound imaging system, comprising a host (40), a control panel (50), a display (60) and a movable probe device. The host (40) comprises a housing (41) and a data processing unit (42) accommodated in the housing (41), the control panel (50) is connected to the host (40), and the display (60) is connected to the host (40). The movable probe device comprises a support device (10) and a probe (20), the probe (20) is mounted on the support device (10), the support device (10) and the host (40) are separately provided, and the probe (20) is in wired or wireless communication with the host (40). As the probe (20) is mounted on the support device (10) which is separated from the host (40), the probe (20) has a larger movement space, and the support device (10) functions to support and guide the probe (20), being convenient for an operator to use, relaxing the operator, and ensuring the safety of a patient.
Patent WO-2020047693-A1 (WO)
Title: Power supply management circuit
Inventor: HU RUI
IPC: H03K17/567
Filed: 2018-09-03
Abstract: A power supply management circuit, comprising a power on and off management module, a battery and a load switch, wherein a detection end of the power on and off management module is used for detecting a power on or power off signal, a first control end thereof is connected to the load switch and a second control end thereof is connected to a battery protection board; when the power off signal is detected, the turning-off of the load switch is controlled to stop supplying power to a load, and the battery protection board is controlled to cut off the output of electric energy from a battery; and when the power on signal is detected, the turning-on of the battery protection board is controlled, such that the battery continuously supplies power to the power on and off management module, and the turning-off of the load switch is controlled to supply power to the load. Further provided is another power supply management circuit, wherein a switch circuit is connected between a battery and a power on and off management module, and the energization between the battery and the power on and off management module is enabled or disabled by means of controlling the turning-on or turning-off of the switch circuit. The management of the power on and off of a battery power supplying device can be realized, such that a battery no longer supplies power to a power on and off management module in a power-off state, thereby reducing the power consumption of the battery.
Patent WO-2020047712-A1 (WO)
Inventor: LIN YUANCHENG
IPC: G06F3/041
Filed: 2018-09-03
Abstract: 一种触控显示面板（10），通过将所述触控显示面板（10）的触控层（20,40）的部分第一电极线（21）和/或部分第二电极线（22）上设有多个间隔设置的断口，使得第一电极线（21）与第二电极线（22）之间的节点数减少，从而降低节点电容，进而降低背景电容值Cm，使得感应变化电容值ΔCm与背景电容值Cm的比值增大，使得触控显示面板具有良好的触控效果。
Patent WO-2020051752-A1 (WO)
Title: Electronic device and control method thereof
Inventor: LI MINGHAI
IPC: G06F1/16
Filed: 2018-09-10
Abstract: An electronic device (100) and a control method thereof. The electronic device (100) comprises a housing (10) having an accommodating part (121) and a handwriting pen (20) capable of being accommodated in the accommodating part (121), wherein a sensor (30) and a processor (40) electrically connected to the sensor (30) are provided in the housing (10); the sensor (30) is used for sensing whether the handwriting pen (20) is accommodated in the accommodating part (121) and generates a corresponding sensing signal; and the processor (40) receives the sensing signal, determines whether the handwriting pen (20) is accommodated in the accommodating part (121) of the housing (10) according to the sensing signal, and controls on or off of the electronic device (100) according to a determination result. By combining the handwriting pen (20) and an on-off key, and accommodating the handwriting pen (20) in the housing (10), on/off of the electronic device (100) is more intelligent, and the overall aesthetics is improved.
Patent WO-2020061833-A1 (WO)
Inventor: WU JINQIU
IPC: H04B13/02
Filed: 2018-09-26
Abstract: The present invention relates to a method for reducing the peak-to-average ratio of a multi-carrier underwater acoustic communication system by using an improved companding transform at a receiving end, and aims to prevent the orthogonality between sub-carriers of an OFDM system from being impacted by clipping distortion generated by an underwater acoustic power amplifier operating in a non-linear region caused by excessive peak signal power, which in turn impacts the bit error rate of the entire communications system. The invention relates to the field of underwater acoustic communications, and relates to a companding transform method for reducing the peak-to-average ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) underwater acoustic communication systems. The present invention improves the companding transform method at a transmission end and a receiving end, respectively, and so reduces the impact thereof on the bit error rate of systems. Simulation results in an underwater environment indicate that when a signal-to-noise ratio is 20 dB, the bit error rate of an underwater acoustic system using the improved companding transform method is lower than conventional companding transform methods by an order of 10 -1 , thereby providing evidence that the improvement method is applicable to the field of underwater acoustics in a complex channel environment.
Patent WO-2019196353-A1 (WO)
Inventor: QIAO QINGFENG
IPC: B61F7/00
Filed: 2018-09-27
Abstract: L'invention concerne un bogie à calibre variable de train super-express pour un véhicule ferroviaire comprenant un châssis, un disque de frein monté sur roue (100) étant monté sur une roue (10) d'un ensemble de roues à calibre variable, une poutre latérale (20) ou une traverse du châssis étant dotée d'un étrier de frein (1) et d'un siège de montage (2), et l'étrier de frein (1) étant raccordé au siège de montage (2) par l'intermédiaire d'une broche de support (3). La broche de support (3) est agencée horizontalement sous le siège de montage (2) et les deux extrémités de la broche de support sont raccordées de manière fixe au siège de montage (2), un manchon de raccordement est agencé au niveau d'une extrémité de l'étrier de frein (1), et le manchon de raccordement est emmanché en interne, à la manière d'une fixation, avec un manchon interne d'amortissement (4) présentant des amortissements élastiques. Le manchon de raccordement est verrouillé sur la broche de support (3) à travers le manchon interne d'amortissement (4), et lorsque la poussée sur le manchon de raccordement est supérieure à la force d'amortissement entre le manchon de raccordement et la broche de support (3), le manchon de raccordement entraîne l'étrier de frein (1) pour son déplacement le long de la broche de support (3).