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    • 2. 发明授权
    • Apparatus and method for merging beacon transmission and reception
    • 用于合并信标发射和接收的装置和方法
    • US09392564B2
    • 2016-07-12
    • US12522957
    • 2008-01-15
    • Chun-Ting ChouHong ZhaiRichard Chen
    • Chun-Ting ChouHong ZhaiRichard Chen
    • H04W56/00H04W48/16
    • H04W56/002H04W48/16
    • A method and wireless device merge multiple unsynchronized beacon groups in a wireless network, each beacon group including at least one wireless device. A first beacon is received from at least one first wireless device in a first beacon group (S514), the first wireless device having a first directional antenna. A second beacon is received from at least one second wireless device in a second beacon group that is not synchronized with the first beacon group (S516), the second wireless device having a second directional antenna. A first response beacon is relocated (S520) and sent (S522) to the first wireless device in the first beacon group. The relocated first response beacon instructs the first wireless device to relocate the first beacon. Accordingly, the second beacon, the relocated first response beacon, and the relocated first beacon are synchronized.
    • 方法和无线设备合并无线网络中的多个不同步的信标组,每个信标组包括至少一个无线设备。 从第一信标组中的至少一个第一无线设备接收第一信标(S514),第一无线设备具有第一定向天线。 从与第一信标组不同步的第二信标组中的至少一个第二无线设备接收第二信标(S516),第二无线设备具有第二定向天线。 第一响应信标被重定位(S520)并发送(S522)到第一信标组中的第一无线设备。 重新定位的第一响应信标指示第一无线设备重定位第一信标。 因此,第二信标,重新定位的第一响应信标和重新定位的第一信标被同步。
    • 6. 发明授权
    • Apparatus and method for enabling discovery of wireless devices
    • 用于实现无线设备发现的装置和方法
    • US08630205B2
    • 2014-01-14
    • US12812638
    • 2008-01-17
    • Chun-Ting ChouHongqiang ZhaiRichard Chen
    • Chun-Ting ChouHongqiang ZhaiRichard Chen
    • H04L12/28
    • H04W24/00H04W48/16
    • A method and apparatus discover hidden wireless devices in a wireless network using a directional antenna system, preventing partitioning of the wireless network. A first wireless device located in a first antenna sector is joined in response to an initial first beacon. First beacons are received from the joined first wireless device during corresponding first beacon periods. At least a second antenna sector is scanned during at least one first beacon period to listen for second beacons from a second wireless device in the second antenna sector, while remaining joined with the first wireless device. The first beacons are not received while the second antenna sector is scanned. The second wireless device is joined in response to an initial second beacon. Second beacons are then received from the joined second wireless device during corresponding second beacon periods, and the first beacons are received during the corresponding first beacon periods.
    • 一种方法和装置利用定向天线系统在无线网络中发现隐藏的无线设备,从而防止无线网络的划分。 响应于初始第一信标,位于第一天线扇区中的第一无线设备被连接。 在对应的第一信标周期期间,从连接的第一无线设备接收到第一信标。 在至少一个第一信标周期期间至少扫描第二天线扇区,以便在与第一无线设备保持连接的同时从第二天线扇区中的第二无线设备收听第二信标。 当第二个天线扇区被扫描时,第一个信标不被接收。 响应于初始的第二信标而连接第二无线设备。 然后在对应的第二信标周期期间从连接的第二无线设备接收第二信标,并且在对应的第一信标周期期间接收第一信标。
    • 7. 发明授权
    • Method for scheduling transmissions of global beacons in body area networks
    • 调整身体局域网中全球信标传输的方法
    • US08537721B2
    • 2013-09-17
    • US13058009
    • 2009-08-07
    • Maulin D. PatelRichard Chen
    • Maulin D. PatelRichard Chen
    • H04L12/00H04J9/00
    • H04W72/1257H04W48/08H04W72/1278H04W84/20
    • A method (400) for scheduling transmissions of global beacons in a body area network (BAN). The BAN includes master nodes and slave nodes where master nodes are arranged in a tree topology. The method comprises propagating ascending global beacons (AGBs) from leaf nodes to a root node of the tree during an ascending period (S420), wherein an AGB includes at least reservations of time slots during a time round; processing AGBs by the root node to determine time slot occupancy information (S430); propagating descending global beacons (DGBs) from the root node to leaf nodes during a descending period (S440), wherein a DGB includes at least reservations of time slots during the time round; and processing DGBs by master nodes other than the root node to update at least the slot occupancy information included in the DGBs (S450).
    • 一种用于调度体区域网络(BAN)中的全球信标传输的方法(400)。 BAN包括主节点和从节点,其中主节点以树形拓扑布置。 该方法包括在升序期间将上升全局信标(AGB)从叶节点传播到树的根节点(S420),其中,AGB至少包括时间段内的时隙预留; 根节点处理AGB以确定时隙占用信息(S430); 在下降期间从根节点向叶节点传播下降的全球信标(DGB)(S440),其中DGB至少包括时间段内的时隙的预留; 以及除根节点之外的主节点处理DGB以至少更新包含在DGB中的时隙占用信息(S450)。
    • 9. 发明授权
    • Differential varactor circuit for a voltage controlled oscillator
    • 用于压控振荡器的差分变容二极管电路
    • US08098109B2
    • 2012-01-17
    • US12460989
    • 2009-07-27
    • Qiang LiShr-Lung ChenRichard Chen
    • Qiang LiShr-Lung ChenRichard Chen
    • H03B1/00
    • H03B5/1228H03B5/1215H03B5/1253H03B5/1265
    • According to one exemplary embodiment, a differential varactor circuit for a voltage controlled oscillator having two differential outputs includes a first varactor having first and second terminals and a second varactor having first and second terminals. In the differential varactor circuit, each of the first and second terminals of the first varactor and each of the first and second terminals of the second varactor are coupled to one of the two differential outputs of the voltage controlled oscillator, thereby allowing a size of each of the first and second varactors to be reduced so as to increase varactor quality factor. Each of the first and second terminals of the first varactor can be coupled to one of the two differential outputs by a capacitor, and each of the first and second terminals of the second varactor can be coupled to one of the two differential outputs by a capacitor.
    • 根据一个示例性实施例,用于具有两个差分输出的压控振荡器的差分变容二极管电路包括具有第一和第二端子的第一变容二极管和具有第一和第二端子的第二变容二极管。 在差分变容二极管电路中,第一变容二极管的第一和第二端子和第二变容二极管的第一和第二端子中的每一个耦合到压控振荡器的两个差分输出中的一个,从而允许每个 的第一和第二变容二极管被还原,以增加变容二极管品质因数。 第一变容二极管的第一和第二端子中的每一个可以通过电容器耦合到两个差分输出中的一个,并且第二变容二极管的第一和第二端子中的每一个可以通过电容器耦合到两个差分输出中的一个 。
    • 10. 发明授权
    • Passive optical network with wavelength division multiplexing
    • 无源光网络采用波分复用技术
    • US08005363B2
    • 2011-08-23
    • US11956556
    • 2007-12-14
    • Yanming LiuRichard Chen
    • Yanming LiuRichard Chen
    • H04J14/02
    • H04J14/0282
    • In one embodiment, a passive optical network is provided that includes: an optical line terminal (OLT) configured to transmit a plurality of downstream signals into a corresponding plurality of passive optical networks and to receive a corresponding plurality of upstream signals from the plurality of passive optical networks, wherein each downstream signal is separated in wavelength from the remaining wavelength signals, and wherein each upstream signal is separated in wavelength from the remaining upstream signal; a Mux/Demux configured to multiplex the downstream signals from the OLT into a optical fiber and to demultiplex upstream signals from the optical fibers to the OLT; and a splitter configured to split the downstream signals from the OLT to a plurality of optical network units such that each optical network unit receives the plurality of downstream signals.
    • 在一个实施例中,提供了一种无源光网络,其包括:光线路终端(OLT),其被配置为将多个下行信号发送到对应的多个无源光网络中,并且从多个被动方式接收相应的多个上行信号 光网络,其中每个下行信号在波长上与剩余的波长信号分离,并且其中每个上行信号在波长上与剩余的上行信号分离; Mux / Demux,被配置为将来自OLT的下行信号复用到光纤中,并解复用从光纤到OLT的上行信号; 以及分配器,被配置为将来自OLT的下行信号分离成多个光网络单元,使得每个光网络单元接收多个下行信号。