利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

142 条记录 (耗时 0.032 秒)

    Pump
    1.
    发明申请
    Pump 有权
    泵

    公开(公告)号：US20120275943A1

    公开(公告)日：2012-11-01

    申请号：US13394166

    申请日：2010-09-03

    申请人： James Coates ,  Mark Wallace ,  Clive Buckberry

    发明人： James Coates ,  Mark Wallace ,  Clive Buckberry

    IPC分类号： A61M1/00

    CPC分类号： F04B43/06 ,  A61M1/1006 ,  A61M1/1037 ,  A61M1/106 ,  A61M1/1062 ,  A61M1/14

    摘要： A pump for a dialysis machine, the pump having a pump chamber and a deformable membrane actuable to pump a fluid from the pump chamber, the pump chamber being substantially conical such that the membrane is actuated to extend into the conical chamber in order to pump the fluid from the chamber.

    摘要翻译： 一种用于透析机的泵，所述泵具有泵室和可致动以泵送来自泵室的流体的可变形膜，所述泵室基本上是锥形的，使得所述膜被致动以延伸到所述锥形室中，以便泵送 流体从腔室。

    Dialysis machine
    3.
    发明授权
    Dialysis machine 有权

    公开(公告)号：US09682183B2

    公开(公告)日：2017-06-20

    申请号：US14374769

    申请日：2012-02-14

    申请人： Ben Higgitt ,  Mark Wallace

    发明人： Ben Higgitt ,  Mark Wallace

    IPC分类号： A61M1/16

    CPC分类号： A61M1/1652 ,  A61M1/16 ,  A61M1/1656 ,  A61M1/1666 ,  A61M1/1668 ,  A61M2202/0413 ,  A61M2205/10 ,  A61M2205/122 ,  F04C2270/041

    摘要： A hemodialysis machine including a main body and a door, the door being capable of opening and closing relative to the main body so as to receive and retain a disposable cartridge therebetween, the machine further including a controller and a pneumatic pump, the cartridge having a chassis with a platen side covered by a first deformable membrane and a door side covered by a second deformable membrane, the chassis and membranes defining a dialysate flow path for delivering a flow of dialysate solution through a dialyzer, the main body having a platen for in use sealing against the platen side of the cartridge and the door having an interface plate for in use sealing against the door side of the cartridge, the pneumatic pump being fluidically connected to an interface plate cavity between the interface plate and the cartridge by a pneumatic supply line, the pump being controlled by the controller to selectively generate a vacuum in the platen cavity so as to affix the cartridge to the door prior to operation of the machine.

    MULTI-ACCESS HYBRID OFDM-CDMA SYSTEM
    5.
    发明申请
    MULTI-ACCESS HYBRID OFDM-CDMA SYSTEM 有权
    多访问混合OFDM-CDMA系统

    公开(公告)号：US20100246642A1

    公开(公告)日：2010-09-30

    申请号：US12813461

    申请日：2010-06-10

    申请人： Jay R. Walton ,  John W. Ketchum ,  Steven J. Howard ,  Mark Wallace

    发明人： Jay R. Walton ,  John W. Ketchum ,  Steven J. Howard ,  Mark Wallace

    IPC分类号： H04B1/707

    CPC分类号： H04W52/12 ,  H04B1/692 ,  H04L5/0021 ,  H04L5/0048 ,  H04L5/026 ,  H04L25/0228 ,  H04L27/0008 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2655 ,  H04W52/286

    摘要： In one aspect of a multiple-access OFDM-CDMA system, the data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of the downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on.

    摘要翻译： 在多址OFDM-CDMA系统的一个方面，通过用从一组可用的扩展码中选择的相应的扩展码扩展每个数据流，在频域中执行数据扩展。 为了支持多次访问，可以向用户分配和分配系统资源（例如，可以根据需要将扩展​​码分配给用户，并且发送功率可以被分配给用户）。 可以通过扩展调整和发射功率缩放的组合来支持每个用户的可变速率数据。 还提供干扰控制技术以通过下行链路和/或上行链路传输的功率控制来提高系统性能，以实现期望的性能水平同时最小化干扰。 每个发射机单元可以发送导频，以帮助接收机单元执行采集，定时同步，载波恢复，切换，信道估计，相干数据解调等。

    Multiple-access hybrid OFDM-CDMA system
    6.
    发明授权
    Multiple-access hybrid OFDM-CDMA system 有权
    多址混合OFDM-CDMA系统

    公开(公告)号：US07764594B2

    公开(公告)日：2010-07-27

    申请号：US11494126

    申请日：2006-07-26

    申请人： Jay R. Walton ,  John W. Ketchum ,  Steven J. Howard ,  Mark Wallace

    发明人： Jay R. Walton ,  John W. Ketchum ,  Steven J. Howard ,  Mark Wallace

    IPC分类号： H04J11/00 ,  H04B7/216

    CPC分类号： H04W52/12 ,  H04B1/692 ,  H04L5/0021 ,  H04L5/0048 ,  H04L5/026 ,  H04L25/0228 ,  H04L27/0008 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2655 ,  H04W52/286

    摘要： In one aspect of a multiple-access OFDM-CDMA system, the data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of the downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on.

    摘要翻译： 在多址OFDM-CDMA系统的一个方面，通过用从一组可用的扩展码中选择的相应的扩展码扩展每个数据流，在频域中执行数据扩展。 为了支持多次访问，可以向用户分配和分配系统资源（例如，可以根据需要将扩展​​码分配给用户，并且发送功率可以被分配给用户）。 可以通过扩展调整和发射功率缩放的组合来支持每个用户的可变速率数据。 还提供干扰控制技术以通过下行链路和/或上行链路传输的功率控制来提高系统性能，以实现期望的性能水平同时最小化干扰。 每个发射机单元可以发送导频，以帮助接收机单元执行采集，定时同步，载波恢复，切换，信道估计，相干数据解调等。

    Multiple-input, multiple-output (MIMO) systems with multiple transmission modes
    7.
    发明授权
    Multiple-input, multiple-output (MIMO) systems with multiple transmission modes 有权
    具有多种传输模式的多输入多输出（MIMO）系统

    公开(公告)号：US07738428B2

    公开(公告)日：2010-06-15

    申请号：US10985400

    申请日：2004-11-10

    申请人： Irina Medvedev ,  Jay Rod Walton ,  Mark Wallace

    发明人： Irina Medvedev ,  Jay Rod Walton ,  Mark Wallace

    IPC分类号： H04Q7/00

    CPC分类号： H04B7/0417 ,  H04B7/043 ,  H04B7/0439 ,  H04B7/0443 ,  H04B7/061 ,  H04B7/0626 ,  H04B7/0689 ,  H04B7/0691 ,  H04B7/0854 ,  H04L1/0002 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0046 ,  H04L5/006 ,  H04W52/42

    摘要： Techniques to transmit data on a number of transmission channels in a multi-channel communication system using multiple transmission schemes requiring less channel-state information (CSI). These schemes may include a partial-CSI transmission scheme that transmits a single data stream on each transmit antenna selected for use and a “beam-forming” transmission scheme that allocates all transmit power to a single transmission channel having the best performance. Each transmission scheme may provide good or near-optimum performance for a specific range of operating conditions (or operating SNRs). These multiple transmission schemes may then be combined in a piece-wise fashion to form a “multi-mode” transmission scheme that covers the full range of operating conditions supported by the MIMO system. The specific transmission scheme to be used for data transmission at any given moment would then be dependent on the specific operating condition experienced by the system at that moment.

    摘要翻译： 使用需要较少信道状态信息（CSI）的多个传输方案在多信道通信系统中在多个传输信道上传输数据的技术。 这些方案可以包括在被选择使用的每个发射天线上发送单个数据流的部分CSI传输方案以及将所有发射功率分配给具有最佳性能的单个传输信道的“波束形成”传输方案。 每个传输方案可以为特定范围的操作条件（或操作SNR）提供良好或接近最佳的性能。 然后，这些多个传输方案可以以分段方式组合以形成覆盖由MIMO系统支持的全部操作条件的“多模式”传输方案。 在任何给定时刻用于数据传输的具体传输方案将取决于系统在此刻经历的特定操作条件。

    METHOD AND APPARATUS FOR TRANSMITTING DATA IN A TIME DIVISION DUPLEXED (TDD) COMMUNICATION SYSTEM
    8.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING DATA IN A TIME DIVISION DUPLEXED (TDD) COMMUNICATION SYSTEM 有权
    用于在时分双工（TDD）通信系统中发送数据的方法和装置

    公开(公告)号：US20100074152A1

    公开(公告)日：2010-03-25

    申请号：US12547732

    申请日：2009-08-26

    申请人： Ahmad Jalali ,  John E. Smee ,  Mark Wallace

    发明人： Ahmad Jalali ,  John E. Smee ,  Mark Wallace

    IPC分类号： H04J3/00 ,  H04L27/28

    CPC分类号： H04L1/0032 ,  H04B7/0434 ,  H04B7/0626 ,  H04L1/0003 ,  H04L1/0013 ,  H04L1/0026 ,  H04L1/0034 ,  H04L1/06 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0226 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： Techniques to process data for transmission in a time division duplexed (TDD) communication system. In one aspect, the frequency response of a forward link is estimated at a base station based on reverse link transmissions (e.g., pilots) from a terminal Prior to a data transmission on the forward link, the base station determines a reverse transfer function based on the pilots transmitted by the terminal, “calibrates” the reverse transfer function with a calibration function to derive an estimate of a forward transfer function, and preconditions modulation symbols based on weights derived from the forward transfer function. In another aspect, the terminal estimates the “quality” of the forward link and provides this information to the base station. The base station then uses the information to properly code and modulate data prior to transmission such that the transmitted data can be received by the terminal at the desired level of performance.

    摘要翻译： 在时分双工（TDD）通信系统中处理用于传输的数据的技术。 在一个方面，基于来自终端的反向链路传输（例如，导频）在基站处估计前向链路的频率响应在前向链路上的数据传输之前，基站基于 由终端发送的导频，使用校准功能“校准”反向传递函数，以导出正向传递函数的估计，以及基于从前向传递函数导出的权重的前提条件调制符号。 在另一方面，终端估计前向链路的“质量”，并将该信息提供给基站。 然后，基站使用该信息在发送之前对数据进行适当的编码和调制，使得所发送的数据能够以期望的性能水平由终端接收。

    Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems
    9.
    发明授权
    Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems 有权
    用于MIMO系统的信道本征模式分解的时域发射和接收处理

    公开(公告)号：US07430245B2

    公开(公告)日：2008-09-30

    申请号：US11500852

    申请日：2006-08-07

    申请人： John W. Ketchum ,  Mark Wallace ,  Steven J. Howard ,  Jay Rod Walton

    发明人： John W. Ketchum ,  Mark Wallace ,  Steven J. Howard ,  Jay Rod Walton

    IPC分类号： H04B7/02 ,  H04L1/02

    CPC分类号： H04B7/0617 ,  H04B7/0413 ,  H04B7/0443 ,  H04B7/0854 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0248 ,  H04L25/03057 ,  H04L27/2608

    摘要： Techniques for processing a data transmission at the transmitter and receiver. In an aspect, a time-domain implementation is provided which uses frequency-domain singular value decomposition and “water-pouring” results to derive time-domain pulse-shaping and beam-steering solutions at the transmitter and receiver. The singular value decomposition is performed at the transmitter to determine eigen-modes (i.e., spatial subchannels) of the MIMO channel and to derive a first set of steering vectors used to “precondition” modulation symbols. The singular value decomposition is also performed at the receiver to derive a second set of steering vectors used to precondition the received signals such that orthogonal symbol streams are recovered at the receiver, which can simplify the receiver processing. Water-pouring analysis is used to more optimally allocate the total available transmit power to the eigen-modes, which then determines the data rate and the coding and modulation scheme to be used for each eigen-mode.

    摘要翻译： 用于在发射机和接收机处理数据传输的技术。 在一方面，提供了时域实现，其使用频域奇异值分解和“注水”结果以在发射机和接收机处导出时域脉冲整形和波束导向解决方案。 在发射机处执行奇异值分解以确定MIMO信道的本征模式（即，空间子信道），并导出用于“调制前缀”调制符号的第一组导引向量。 奇异值分解也在接收机处执行，以导出用于预处理接收信号的第二组导引向量，使得在接收机处恢复正交符号流，这可以简化接收机处理。 使用浇注分析来更好地将总可用发射功率分配给本征模式，该本征模式确定了要用于每个本征模式的数据速率和编码和调制方案。