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    • 2. 发明申请
    • SOLID-STATE PHASE-SPLITTING TRANSFORMER
    • 固态相分离变压器
    • WO2017019152A1
    • 2017-02-02
    • PCT/US2016/032879
    • 2016-05-17
    • DENT, Paul Wilkinson
    • DENT, Paul Wilkinson
    • H02M5/16H02M5/22H02M5/293
    • H02M1/08H02M5/16H02M5/225H02M5/293
    • A solid state power transformer (300) is described for converting an input power signal at a first phase or voltage to an output signal of a second voltage or opposite phase by the use of bidirectional solid state switches (200-1, 200-2) switched at a high carrier frequency to produce a double-sideband, suppressed-carrier representation of the input power signal, which is then synchronously demodulated using further similar switches (200-3, 200-4) to produce the desired output. It is further disclosed that multiple instances of the above with relative phase-staggering of the switching frequency may be operated in parallel and activated or deactivated according to output current demand to provide maximum efficiency over a wide range of current and power levels.
    • 描述了一种固态电力变压器(300),用于通过使用双向固态开关(200-1,200-2)将第一相位或电压的输入功率信号转换成第二电压或相反相位的输出信号, 以高载波频率切换以产生输入功率信号的双边带抑制载波表示,然后使用其他类似的开关(200-3,200-4)进行同步解调以产生所需的输出。 还公开了上述具有开关频率的相对相位交错的多个实例可以并行地操作并且根据输出电流需求被激活或去激活,以在宽范围的电流和功率水平上提供最大效率。
    • 3. 发明申请
    • ELECTRONIC MESSAGE AGGREGATION AND SHARING SYSTEM AND APPARATUS
    • 电子信息聚合和共享系统和设备
    • WO2014165118A1
    • 2014-10-09
    • PCT/US2014/024463
    • 2014-03-12
    • BURNETT, J. StephenDENT, Paul WilkinsonZIRBEL, Lawrence D.
    • BURNETT, J. StephenDENT, Paul WilkinsonZIRBEL, Lawrence D.
    • H04M3/533H04M11/00
    • H04M3/53325H04M3/53366H04M2203/655
    • In a first aspect a communications device is described to include novel software for aggregating voice and other messages from various communications media and presenting the user with a display of same, ordered by medium, date of receipt, source etc. The software also comprises a user-friendly man-machine interface for forwarding the messages between media, including posting messages on social websites. In a second aspect, a server is described, including software to receive, organize and store messages in digital form, with the participation of the user's communication device in one mode and autonomously in another mode. The server comprises software that generates links to messages selected to be posted on the Web. When such a link is opened by a web browser, the selected message is made available to the browser and the opportunity to display revenue-generating advertisements to all who access the message is simultaneously created.
    • 在第一方面,通信设备被描述为包括用于从各种通信媒体聚合语音和其他消息的新颖软件,并且向用户呈现具有相同的显示,按介质,接收日期,源等进行排序。软件还包括用户 友好的人机界面,用于在媒体之间转发消息,包括在社交网站上发布消息。 在第二方面,描述了服务器,包括以数字形式接收,组织和存储消息的软件,用户的通信设备参与一种模式,并且在另一种模式下自主地进行。 该服务器包括生成指向要发布在Web上的消息的链接的软件。 当网络浏览器打开这样的链接时,所选择的消息对于浏览器是可用的,并且向所有访问该消息的人同时创建向其显示创收广告的机会。
    • 4. 发明申请
    • CONTINUOUS SEQUENTIAL SCATTERER ESTIMATION
    • 连续序列散射估计
    • WO2010140131A2
    • 2010-12-09
    • PCT/IB2010052470
    • 2010-06-02
    • ERICSSON TELEFON AB L MDENT PAUL WKRASNY LEONID
    • DENT PAUL WKRASNY LEONID
    • H04L25/02
    • H04L25/022H04L25/0222H04L25/0236H04L25/0248H04L25/03101
    • The present invention uses newly received signal samples to update previously determined scatterer parameters, and therefore, reduces the processing effort required for characterizing scattering objects in a wireless channel. Broadly, the present invention determines a first set of scatterer parameters based on signal samples derived from signals received during one or more previous time interval, and determines an updated set of scatterer parameters for a subsequent time interval based on the first set of scatterer parameters and the new signal samples hi one exemplary embodiment, the receiver uses a continuous sequential update process, e.g., a per-symbol-period inverse Prony process, to update the scatters parameters !n another exemplar embodiment, the receiver uses an integrated Doppler approach to update the scatterer parameters.
    • 本发明使用新接收的信号样本来更新先前确定的散射体参数,因此减少了在无线信道中表征散射物体所需的处理努力。 广泛地,本发明基于从在一个或多个先前时间间隔期间接收的信号导出的信号样本来确定第一组散射体参数,并且基于第一组散射体参数确定随后的时间间隔的更新的散射体参数集合,以及 新的信号样本在一个示例性实施例中,接收机使用连续的顺序更新过程,例如每符号周期逆Prony过程来更新分散参数!在另一示例性实施例中,接收机使用综合多普勒方法来更新 散射体参数。
    • 5. 发明申请
    • CROSSTALK CANCELLATION FOR MIMO TRANCEIVER
    • 用于MIMO跟踪器的CROSSTALK CANCELLATION
    • WO2010108772A1
    • 2010-09-30
    • PCT/EP2010/052830
    • 2010-03-05
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)DENT, Paul
    • DENT, Paul
    • H04B7/04H04B7/00H01Q21/28H01Q1/24
    • H01Q21/28H01Q1/246H04B7/10H04B17/14
    • A multiple antenna system is described herein that mitigates the negative effects of mutually coupled antennas on the connected transmitters and/or receivers The antenna system comprises a directional coupler and two or more antennas The directional coupler comprises multiple communication ports that each connect to corresponding antenna ports The connection ports each connect to a different transmitter, receiver, or transceiver A transmission line connects each antenna port to an antenna The lengths of the transmission lines and the coupling factor of the directional coupler are selected to decouple the communication ports of the directional coupler More particularly, the coupling factor and the transmission line lengths are selected so that antenna crosstalk signals caused by mutual coupling between the antennas and the coupled signals produced by the directional coupler have the same magnitude but opposite phase at the communication ports of the directional coupler
    • 本文描述了减轻相连的发射机和/或接收机上相互耦合的天线的负面影响的多天线系统。天线系统包括定向耦合器和两个或多个天线。定向耦合器包括多个通信端口,每个通信端口连接到对应的天线端口 连接端口各自连接到不同的发射器,接收器或收发器A传输线将每个天线端口连接到天线。选择传输线的长度和定向耦合器的耦合因子以解耦定向耦合器的通信端口 特别地,选择耦合因子和传输线路长度,使得由天线之间的相互耦合和由定向耦合器产生的耦合信号引起的天线串扰信号在定向耦合器的通信端口具有相同的幅度但相反的相位
    • 8. 发明申请
    • SYSTEM AND METHOD FOR ADAPTIVE ANTENNA IMPEDANCE MATCHING
    • 用于自适应天线阻抗匹配的系统和方法
    • WO2009124874A1
    • 2009-10-15
    • PCT/EP2009/053930
    • 2009-04-02
    • TELEFONAKTIEBOLAGET L M ERICSSON (publ)DENT, Paul, WilkinsonMATTISSON, Sven
    • DENT, Paul, WilkinsonMATTISSON, Sven
    • H04B1/04
    • H04B1/0458
    • Methods and apparatus are disclosed for automatically adjusting antenna impedance match in a wireless transceiver employing phase-amplitude modulation. According to some embodiments of the invention, a wireless transceiver comprises a transmitter circuit and a receiver circuit connected to the antenna by a transmit/receive duplexer. An electronically adjustable matching network is located between the transmitter output and the antenna. To control the adjustable matching network, a directional coupler is located between the transmitter output and the matching network to separate transmit signals reflected from the antenna system, including the antenna, the matching network and the T/R duplexer. The reflected transmit signals are routed to the receiver circuit, which digitizes the reflected signal and determines an antenna reflection coefficient based on the digitized reflected signal and the modulation signal used to create the transmit signal. The complex antenna reflection coefficient is used to determine any adjustment needed to the antenna matching network.
    • 公开了用于在采用相位幅度调制的无线收发器中自动调整天线阻抗匹配的方法和装置。 根据本发明的一些实施例,无线收发器包括发射机电路和通过发射/接收双工器连接到天线的接收机电路。 电子可调匹配网络位于发射机输出和天线之间。 为了控制可调匹配网络,定向耦合器位于发射机输出和匹配网络之间,以分离天线系统反射的发射信号,包括天线,匹配网络和T / R双工器。 反射的发射信号被路由到接收机电路,其对反射信号进行数字化,并且基于用于产生发射信号的数字化反射信号和调制信号确定天线反射系数。 复合天线反射系数用于确定天线匹配网络所需的任何调整。
    • 10. 发明申请
    • DIRECT RF D-TO-A CONVERSION
    • 直接RF D转换
    • WO2008155301A3
    • 2009-02-19
    • PCT/EP2008057521
    • 2008-06-16
    • ERICSSON TELEFON AB L MDENT PAUL WILKINSONKLEMMER NIKOLAUS
    • DENT PAUL WILKINSONKLEMMER NIKOLAUS
    • H03M1/66H03M3/00
    • H03M1/662H03M3/41H03M3/502
    • A modulator described herein provides digital modulation and direct digital-to-analog conversion capable of achieving 12-bit resolution or higherfor high frequency signals. The modulator comprises a digital modulator, conversion circuit, and multiplexer. The digital modulator generates a plurality of sample streams at a plurality of different sample phases that collectively represent a desired modulated digital carrier waveform modulated by a digital input signal. The conversion circuit converts the sample streams into a plurality of continuous analog signals. The multiplexer multiplexes the analog signals together to generate a modulated analog carrier signal representative of the desired modulated digital carrier waveform.
    • 本文描述的调制器提供能够实现12位分辨率或更高的高频信号的数字调制和直接数模转换。 调制器包括数字调制器,转换电路和多路复用器。 数字调制器在多个不同的采样相位产生多个样本流,它们共同表示由数字输入信号调制的期望的调制数字载波波形。 转换电路将采样流转换成多个连续的模拟信号。 复用器将模拟信号复用在一起以产生表示所需调制数字载波波形的调制模拟载波信号。