baber/WOPTO huggingface dataset:
Patent WO-2021136235-A1 (WO)
Title: Light guide component, lighting apparatus and vehicle
Inventor: WU SIHUA
IPC: F21W107/10
Filed: 2020-12-29
Abstract: A light guide component (100), a lighting apparatus, and a vehicle. The light guide component (100) comprises a light lead-in section (110) and a light guide section (120). The light lead-in section (110) has a first light entry part (111) and a second light entry part (112) that face different directions, the first light entry part (111) can receive incident light from a light source (101) corresponding to the first light entry part (111), and the second light entry part (112) can receive incident light from a light source (102) corresponding to the second light entry part (112). The light guide section (120) has a light exit surface (121) so as to guide light from the first light entry part (111) or the second light entry part (112) to propagate therein, and thus be emitted from the light exit surface (121).
Patent WO-2022134210-A1 (WO)
Inventor: DENG WEI
IPC: B25F5/02
Filed: 2021-01-05
Abstract: 一种手持链锯，包括锯链机构；握持手柄（4）；调节旋钮（7）；锁定机构（3），调节旋钮（7）与锁定机构（3）形成互锁时，握持手柄（4）与锯链机构之间无相对运动；至少一个旋钮控制开关（8）；调节旋钮（7）控制旋钮控制开关（8）；握持手柄（4）相对锯链机构绕旋转轴线（1-1）进行旋转调节时，旋钮控制开关（8）切断手持链锯的电路，确保手持链锯在运行状态和握持手柄（4）在旋转调节状态中有且只有唯一的一种状态出现。
Patent WO-2021175008-A1 (WO)
Title: 一种营养素补充剂的制备方法
Inventor: LI YUE
IPC: A23L33/155
Filed: 2021-01-08
Abstract: 一种营养素补充剂的制备方法，通过采用淀粉-可食用亲水多糖-水溶性营养素混合物溶胶溶液和包载脂溶性营养物质的乳状液混合得到乳化凝胶形式的营养素补充剂，构建了一个以淀粉和可食用亲水多糖为凝胶基质，以大分子乳化剂为乳化载体，开发出同时包载水溶性和脂溶性营养素的功能性食品。
Patent WO-2021139812-A1 (WO)
Title: Head-up display system and control method therefor, and vehicle
Inventor: FANG TAO
IPC: G02B27/01
Filed: 2021-01-11
Abstract: A head-up display system and a control method therefor, and a vehicle. The head-up display system comprises: an imaging device group, a concave reflecting element (20), a directional imaging device (30), and a processor (100); the imaging device group comprises at least one single-layer imaging device; the directional imaging device comprises a light source device, a direction control element (32), a diffusion element (33), and an optical modulation layer (34); the processor (100) is connected to the directional imaging device (20) and the single-layer imaging device in the imaging device group, separately. The head-up display system can realize layered imaging, and the directional imaging device can realize large-range imaging, thereby forming a large-area directional imaging area on the surface of a reflective imaging part, and improving the display effect of the head-up display system.
Patent WO-2021143771-A1 (WO)
Inventor: MA LIANGPING
IPC: H04W72/12
Filed: 2021-01-14
Abstract: L'invention concerne un procédé de communication sans fil, le procédé consistant à : recevoir un bloc de signaux de synchronisation (SSB) en provenance d'un premier dispositif de communication sans fil ; acquérir des informations en provenance du SSB, les informations en provenance du SSB conduisant à des informations de configuration pour utiliser une partie de largeur de bande de liaison descendante initiale et une partie de largeur de bande de liaison montante initiale ; et communiquer entre le premier dispositif de communication sans fil et un second dispositif de communication sans fil à l'aide de la partie de largeur de bande de liaison descendante initiale et de la partie de largeur de bande de liaison montante initiale.
Patent WO-2021143774-A1 (WO)
Title: Time series deep survival analysis system in combination with active learning
Inventor: LI JINGSONG
IPC: G16H50/70
Filed: 2021-01-14
Abstract: A time series deep survival analysis system in combination with active learning. The system comprises a data acquisition module, an active learning module, and a time series deep survival analysis module; the data acquisition module is used for obtaining survival data of an object to be analyzed; the active learning module selects part of right-censored data and labels the survival time in combination with an active learning method; the time series deep survival analysis module constructs a time series deep survival analysis neural network model, and uses uncensored data and the right-censored data as model inputs to obtain a survival time prediction result of the object to be analyzed. The time series deep survival analysis system in combination with active learning can make full use of right-censored data in survival data and time series characteristics. Compared with conventional survival analysis models, the time series deep survival analysis system in combination with active learning solves the problem of being difficult to process high-dimensional data, and the problem of poor performance of the models when there is only a small amount of uncensored data in survival analysis; moreover, extraction and utilization of time dimension characteristics of data are increased, the application ranges of models are expanded, and the performance effects of the models are improved.
Patent WO-2022151329-A1 (WO)
Title: 稳流给料机
Inventor: YANG DEZHU
IPC: B65G47/19
Filed: 2021-01-15
Abstract: 本发明提供了一种稳流给料机，包括搅拌仓、给料仓、驱动装置和气体助流装置。搅拌仓顶部具有用于接收粉料的开口，内部设置能够围绕竖向轴线旋转的搅拌装置。给料仓顶部设置与搅拌仓的底部连通的进料口，底部设置与进料口错开的出料口，内部设置有能够围绕竖向轴线旋转的给料叶轮。驱动装置用于驱动搅拌装置和给料叶轮旋转。气体助流装置具有设置在给料仓的顶壁内与给料仓气体连通的助流气路，用于从出料口的上方产生经由出料口向外流动的助流气体。根据本发明，搅拌装置使粉料保持流动性，避免堆积产生死角，气体助流装置产生的助流气体可以克服下游输送装置的输送气流的反吹作用，使粉料稳定均匀流动，减小给料波动，输送量计量准确。
Patent WO-2021190180-A1 (WO)
Inventor: XIONG CHUNSHAN
IPC: H04J3/06
Filed: 2021-02-05
Abstract: Embodiments of the present application provide a time synchronization method and apparatus, a computer-readable medium, and an electronic device. The time synchronization method comprises: receiving a TSN configuration creation request sent by an AF, wherein the TSN configuration creation request includes an identifier of target user equipment and first information used to indicate a condition for triggering TSN time synchronization; and sending a TSN license request to a UDM, wherein the TSN license request is used to request the UDM to send, upon license confirmation, a TSN activation request including the first information to an AMF registered for the target user equipment, so as to send to the target user equipment, via the AMF, a control signaling message used to perform a TSN time synchronization operation.
Patent WO-2022170461-A1 (WO)
Title: 用于显示机械通气状态的医疗设备系统
Inventor: ZOU XINRU
IPC: A61B5/00
Filed: 2021-02-09
Abstract: 一种用于显示机械通气状态的医疗设备系统（100），包括显示器（120）和处理器（110），显示器（120）用于显示机械通气状态，处理器（110）用于：获取通气对象的至少一个肺损伤相关参数；根据至少一个肺损伤相关参数确定通气对象的肺损伤风险；在确定通气对象存在肺损伤风险时，控制显示器（120）通过预设图形呈现肺损伤风险。该医疗设备系统（100）通过预设图形可视化地呈现通气对象的肺损伤风险，从而能够指导用户进行合理的通气参数调节，在减轻肺损伤的同时维持通气。
Patent WO-2021185017-A1 (WO)
Inventor: ZHAO DONGYANG
IPC: H04N21/431
Filed: 2021-02-18
Abstract: 本申请实施例提供了一种视频流播放控制方法、设备及存储介质。在移动显示屏的播放区域播放视频流的过程中，该方法包括：通过检测到播放模式配置控件的触发事件，获取播放模式切换指令，播放模式配置控件的显示入口在移动显示屏的固定菜单栏区域，播放模式切换指令指示将视频流的播放模式切换为目标播放模式，目标播放模式至少包括：自动跳转视频内容的自动播放模式，视频流包括多个视频内容；将视频流的播放模式设置为播放模式切换指令指示的目标播放模式；视频流的播放模式被设置为自动播放模式的情况下，若检测到当前视频内容播放完成，播放当前视频内容的下一个视频内容。本申请实施例提供的方法降低了视频流播放控制的操作难度。
Patent WO-2022183392-A1 (WO)
Title: Procédé, dispositif et système de surveillance de circularité de bande de roulement de roue
Inventor: GUO LEI
IPC: G01B5/00
Filed: 2021-03-03
Abstract: L'invention concerne un procédé de surveillance de circularité de bande de roulement de roue. Des roues sont utilisées pour des essieux montés d'un train, et chaque roue correspond à une boîte d'essieu. Le procédé de surveillance consiste à : établir une relation de transmission (H) entre une accélération de boîte d'essieu et une force d'excitation roue-rail (S10) ; établir un seuil d'alarme d'une quantité d'évaluation, la quantité d'évaluation étant une force d'excitation roue-rail ou un écart de dimension radiale de roue (S20) ; pendant la circulation du train, obtenir une accélération de boîte d'essieu en temps réel à un moment de mesure, et réaliser un calcul selon la relation de transmission (H) pour obtenir une quantité d'évaluation en temps réel au moment de mesure (S30) ; et comparer la quantité d'évaluation en temps réel avec le seuil d'alarme, et délivrer en sortie un résultat de détermination (S40). L'invention concerne en outre un dispositif et un système de surveillance de circularité de bande de roulement de roue.
Patent WO-2022001181-A1 (WO)
Inventor: KAWAGUCHI TOMONARI
IPC: D06F33/30
Filed: 2021-03-15
Abstract: 一种能在脱水时使脱水桶高速旋转来提高脱水率的洗衣机，具备：脱水桶，底部配置有波轮；三个以上的折流板，在周向上等间隔地配置于脱水桶的内周面；注水装置，能向各折流板独立地注入调整水；加速度检测单元，检测脱水桶的振动；脱水桶位置检测装置，与脱水桶的旋转相应地发送脉冲信号；偏心检测单元，检测脱水桶内的偏心量和偏心位置；注水控制单元，在脱水过程中偏心量达到规定的注水用偏心量阈值时，控制注水装置向与偏心位置对应的所述折流板注水；最高转速确定单元，基于向三个以上的折流板的注水状态来确定脱水过程中的最高转速；以及马达控制单元，控制在脱水过程中对所述脱水桶进行旋转驱动的马达。
Patent WO-2022037052-A1 (WO)
Inventor: HUANG ZHENYU
IPC: B63H9/02
Filed: 2021-03-18
Abstract: 提供了一种多段式风力助推转子装置及船舶，多段式风力助推转子装置包括：多个依次纵向连接的助推转子段(1)，每个助推转子段(1)包括内塔(11)、转筒(12)及驱动机构(13)，驱动机构(13)用于根据来风驱动转筒(12)相对于内塔(11)转动，以对内塔(11)产生侧向力；多个内塔(11)依次连接并固定于船体上，内塔(11)所受的侧向力能够传递给船体以为船体提供前进的助推力。船舶包括多段式风力助推转子装置。该多段式风力助推转子装置将整体的转子结构转变成多个相互独立的助推转子段(1)，能够充分利用来风在高度方向上的速度分布，实现更高的助推效率，同时多段式的结构便于制造装配，成本低。船舶采用多段式风力助推转子装置，具有更高的推进功率。
Patent WO-2022126893-A1 (WO)
Title: Module de pontage d'une interface serdes
Inventor: YUAN LEI
IPC: G06F13/40
Filed: 2021-03-24
Abstract: La présente invention concerne le module de pontage d'une interface SerDes. Le module de pontage comprend une commande d'écriture, une commande de lecture, et un sous-module Be_FIFO, la commande d'écriture comprenant un sous-module de commande de canal, un premier sélecteur, un sous-module de suppression de la différence de fréquence de compensation et un deuxième sélecteur qui sont disposés en cascade; et la commande de lecture comprend un sous-module de commande de lecture de canal, un troisième sélecteur, un quatrième sélecteur, un sous-module de couverture de la différence de fréquence de compensation, un cinquième sélecteur et un sixième sélecteur. Au moyen du module de pontage d'une interface SerDes dans la présente demande, le retard de traitement des données est réduit, et les performances de tansmission de l'ensemble du port SerDes sont améliorées.
Patent WO-2022134400-A1 (WO)
Inventor: PAN XIAOPING
IPC: B65G23/04
Filed: 2021-04-18
Abstract: 公开了一种物流高效传递装置，包括底架（1）；用于传递物品的传输带（4）；辊组，辊组同传输带（4）配合并转动设置在底架（1）上，用于驱动传输带（4）运行；动力机构，动力机构设置在传输带（4）的上方，并连接所述辊组；机械组件，机械组件连接动力机构与辊组；扫描机构，扫描机构连接动力机构并设置于动力机构与所述传输带（4）之间，用于对通过扫描机构下方的物品进行扫码识别记录出仓；调节组件，调节组件活动设置在底架（1）上，用于对传递的物品高度体积进行限制。该装置通过动力件带动蜗杆转动，同时驱动蜗轮和旋转件在不同的空间方向旋转，蜗轮借助传动件和传递轮达到传输带运行的功能，而转动的旋转件利用偏心设置的转动件对传输带上经过扫描设备的包装箱进行扫码识别并自动记录出仓和入仓，省去了人工扫描记录的工序，提高了物流传递的效率。
Patent WO-2022232966-A1 (WO)
Title: Cell global identifier reading enhancement
Inventor: CUI JIE
IPC: H04W48/08
Filed: 2021-05-04
Abstract: The present application relates to devices and components including apparatus, systems, and methods to determine a procedure period for a cell global identifier (CGI) reading procedure.
Patent WO-2022007492-A1 (WO)
Title: Touch-control display panel and manufacturing method therefor and display device thereof
Inventor: CHU ZHIWEN
IPC: H01L27/32
Filed: 2021-05-06
Abstract: A touch-control display panel and manufacturing method therefor, and a display device thereof, relating to the technical field of display. The touch-control display panel comprises: a driving backplane (11), a light-emitting component (12), an encapsulation layer (13), and a touch-control layer (14). A touch-control insulating layer (142) in the touch-control layer (14) covers the encapsulation layer (13), and the smallest gap (L1) between the border of the driving backplane (11) and at least part of the border of the touch-control insulating layer (142) nearest to the border of the driving backplane (11) is smaller than the smallest gap (L2) between the border of the driving backplane (11) and the border of the encapsulation layer (13) nearest to the border of the driving backplane (11). Thus damage to the encapsulation layer (13) during the process of forming the touch-control insulating layer (142) can be avoided, thereby increasing the encapsulating effect of the encapsulation layer (13). The present invention solves the problem in the prior art of the encapsulation layer (13) potentially being damaged, causing the protective properties of the encapsulation layer (13) to be relatively weak.
Patent WO-2021259072-A1 (WO)
Inventor: KIM SEYOUNG
IPC: G06N3/08
Filed: 2021-06-10
Abstract: Aspects of the invention include performing a stochastic update for a crossbar array by generating a set of stochastic pulses for a crossbar array, the crossbar array including a plurality of row wires and a plurality of column wires, the plurality of row wires including a first row wire and the plurality of column wires including a first column wire, wherein a three terminal device is coupled to the first row wire and the first column wire at a crosspoint of the first row wire and the first column wire, and wherein a resistivity of the three terminal device is modified responsive to a coincidence of pulses from the set of stochastic pulses at the crosspoint of the first row and the first column, and wherein at least one terminal in the three terminal device is floating.
Patent WO-2021254495-A1 (WO)
Title: Micro-nano magnetic fiber and preparation method for micro-nano magnetic fiber
Inventor: TAO GUANGMING
IPC: D01F6/16
Filed: 2021-06-18
Abstract: Disclosed is a preparation method for a micro-nano magnetic fiber. The micro-nano magnetic fiber comprises a core layer. The preparation method comprises the following steps: compounding: compounding magnetic particles and a base material to obtain a magnetic composite material; processing: preparing magnetic structuralized prefabricated rods by using the magnetic composite material; and hot drawing: preparing the magnetic structuralized prefabricated rods into the micro-nano magnetic fiber by means of a hot drawing process. Also disclosed is a micro-nano magnetic fiber. The micro-nano magnetic fiber comprises the core layer, the core layer comprises the magnetic particles and the base material, and the magnetic particles are distributed in the base material; the magnetic particles are selected from one or more than two of the following materials: metal magnetic particles, metal compound magnetic particles, and metal alloy magnetic particles; and the base material is selected from one or more than two of the following materials: polymers, inorganic glass materials and composite materials of the polymers and the inorganic glass materials. The method according to the present application has the general applicability to composite integration of most of the magnetic materials, magnetic composite materials and other functional materials, and a regulation and control capability is achieved on the fiber diameter, and the concentration, distribution and structure of the magnetic particles in the prepared micro-nano magnetic fiber.
Patent WO-2022261984-A1 (WO)
Inventor: JIN LILI
IPC: H04L1/00
Filed: 2021-06-18
Abstract: 本申请提供了一种通信方法和通信装置，可以应用于短距离通信领域，例如座舱域。发送设备对至少一个第一编码块进行第一编码，得到至少一个第一码字，每个第一编码块包含第一信息块以及用于校验第一信息块的第一校验块；发送设备对至少一个第二编码块进行至少一种第二编码得到至少一个第二码字，至少一个第二编码块包含第二校验块，第二校验块用于校验至少一个第二编码块中的部分信息，第一码字的码长大于第二码字的码长；发送设备生成并发送包含至少一个第一码字以及至少一个第二码字的数据包。接收设备对数据包解码，得到至少一个第一编码块和至少一个第二编码块。本申请实施例提供的方案有利于兼顾甚至提升收发之间的通信质量、通信效率。
Patent WO-2022001888-A1 (WO)
Title: Information generation method and device based on word vector generation model
Inventor: PENG ZONGHUI
IPC: G06F40/30
Filed: 2021-06-25
Abstract: An information generation method and device based on a word vector generation model. The method comprises: obtaining a retrieval word (201); inputting the retrieval word into a pre-trained word vector generation model to obtain a word vector corresponding to the retrieval word (202), wherein the word vector generation model is used for generating a word vector based on non-word meaning similarity, and the non-word meaning similarity comprises at least one of the following: phonetic similarity and graphemic similarity; and generating the degree of similarity between the word vector corresponding to the retrieval word and a word vector to be matched in a preset set of word vectors to be matched (203), wherein the word vector to be matched in the set of word vectors to be matched is obtained on the basis of the word vector generation model. According to the method, the similarity relation between the features other than the meanings of the words learned by the word vector generation model can be fully utilized, so that the quality of fuzzy retrieval can be remarkably improved in scenarios where there is an input error during retrieval and in scenarios where there is no obvious semantic search (such as a name).
Patent WO-2022057378-A1 (WO)
Title: Vehicle cooling system having automatic exhaust function
Inventor: NI ZHENHAO
IPC: H01M10/613
Filed: 2021-06-30
Abstract: A vehicle cooling system having an automatic exhaust function, the system comprising a water tank (100), an input pipe (110), a gas collection cylinder (200), an exchange mechanism (300), an output pipe (310), a battery assembly (400) and a collection pipe (410). During circular flowing of cooling water in the exchange mechanism (300), the gas collection cylinder (200) and the battery assembly (400), two instances of heat exchange of the cooling water and the automatic exhaust function of the cooling water are achieved. The vehicle cooling system has the automatic exhaust function, and also improves the battery cooling efficiency of the exchange mechanism.
Patent WO-2023272697-A1 (WO)
Title: Method and apparatus for determining rrm measurement configuration, communications device and storage medium
Inventor: LI YANHUA
IPC: H04W52/02
Filed: 2021-07-01
Abstract: Embodiments of the present disclosure provide a method and apparatus for determining radio resource management (RRM) measurement configuration, a communications device and a storage medium. The method for determining RRM measurement configuration is executed by a user equipment (UE). The method comprises: determining related information according to a non-connected state where the UE is located and an extended discontinuous reception (eDRX) configuration condition of the UE, wherein the related information at least indicates a first DRX cycle, and whether the UE has a first eDRX cycle; and determining, according to the related information, measurement configuration for the UE to perform RRM measurement.
Patent WO-2022142263-A1 (WO)
Inventor: LUO PENG
IPC: H05B47/11
Filed: 2021-07-13
Abstract: 提供了光控组件（100）、光控灯具（1）、光控系统、调光控制组件（31）及调光系统。光控组件（100）包括：感应件，用于感应光照强度；控制器（120），用于根据感应件反馈的光照强度产生控制电流；电磁装置（130），用于根据控制器（120）产生的控制电流改变磁场以实现控制通断。
Patent WO-2022033292-A1 (WO)
Inventor: WU FANGNA
IPC: H01L21/02
Filed: 2021-07-26
Abstract: The present application provides a method and apparatus for starting a process task in a semiconductor process device. The method comprises: generating a process region relationship list of the current process task of a semiconductor process device; determining all process tasks to be started, and generating a process region relationship list of each process task to be started; on the basis of the process region relationship list of the current process task and the process region relationship list of each process task to be started, determining whether all the process tasks to be started comprise startable process tasks according to a first preset rule; and when all the process tasks to be started comprise the startable process tasks, selecting a target startable process task from all the startable process tasks according to a second preset rule, and starting the target startable process task. Thus, the situation that materials targeted by the target startable process task and the current process task appear in two same process regions but appear in opposite sequences does not occur at any moment, deadlock is avoided, and the production efficiency is improved.
Patent WO-2022100150-A1 (WO)
Inventor: LI JIYONG
IPC: F02C7/06
Filed: 2021-07-27
Abstract: 一种涡轮发动机用高转速油气分离器，包括空心的旋转轴(77)，旋转轴(77)上部设置有进油腔组件，旋转轴(77)的中上部设置有分离腔组件，旋转轴(77)的下部设置有驱动机构，分离腔组件包括位于旋转轴(77)中上部外周的分离器腔体(12)，位于分离器腔体(12)内旋转轴(77)中部的隔断层，位于隔断层上部的第一离心圆盘(19)，位于隔断层下部的第二离心圆盘(20)，位于第一离心圆盘(19)外周的多个第一通孔(21)及位于第二离心圆盘(20)外周的多个第二通孔(22)，位于分离器腔体(12)内与多个第一通孔(21)连通的导油槽(17)及位于分离器腔体(12)上与导油槽(17)连通的出油口(12a)，旋转轴(77)的底部为气出口(7a)。自带动力驱动，不受发动机工况影响，分离效率高，能满足高转速涡轮发动机体积和重量。
Patent WO-2023010331-A1 (WO)
Title: Procédés et appareils de procédure d'accès aléatoire
Inventor: ZHANG YUANTAO
IPC: H04W74/08
Filed: 2021-08-04
Abstract: L'invention concerne des procédés et des appareils de procédure d'accès aléatoire. L'invention concerne également un procédé mis en œuvre par un équipement utilisateur (UE), consistant à : recevoir, à partir d'une station de base (BS), de multiples configurations de canal d'accès aléatoire (RA) (RACH) comprenant une configuration RACH non liée à des caractéristiques indiquant un premier sous-ensemble de préambules dans chaque occasion de RA (RO) d'un ensemble de RO configuré pour une procédure de RA reposant sur une contention (CB), et au moins une configuration RACH liée à des caractéristiques associée à un premier nombre de caractéristiques, chaque configuration RACH relative à des caractéristiques indiquant un sous-ensemble de préambules dans chaque RO de l'ensemble de RO pour une caractéristique; et déterminer un ensemble de préambules pour l'UE pour effectuer une procédure RA dans un RO en fonction du premier sous-ensemble de préambules et d'un deuxième sous-ensemble de préambules qui sont déterminés à partir de la ou des configurations RACH associées à des caractéristiques pour le premier nombre de caractéristiques.
Patent WO-2022057486-A1 (WO)
Title: Mail handling method and electronic device
Inventor: CHEN XIAODONG
IPC: G06Q10/10
Filed: 2021-08-04
Abstract: A mail handling method and an electronic device, which are used to solve the problem in the prior art of the cumbersome operations of mail checking. The method comprises: in response to a first operation on an electronic device, displaying a first interface that comprises a mail group list of at least one mail group, wherein any mail group in the mail group list corresponds to one preview area of the first interface, and members of a mail group comprise a sender, a recipient and a carbon copy recipient in a mail; and in response to a second operation on a preview area corresponding to a first mail group, displaying a second interface that comprises information of a first sender in the first mail group and letter body content of a piece of mail sent by the first sender, wherein the letter body content is obtained after signature content of a signature area in the mail main body of the piece of mail sent by the first sender is separated from the letter body content thereof. In this manner, a user can view letter body content on a second interface without opening a piece of mail again, thus facilitating the simplification of user operations for checking mail.
Patent WO-2023010365-A1 (WO)
Inventor: NUGGEHALLI PAVAN
IPC: H04B10/118
Filed: 2021-08-04
Abstract: The present application relates to devices and components including apparatus, systems, and methods for ephemeris signaling in wireless networks.