Thrombectomy catheter
    21.
    发明申请
    Thrombectomy catheter 有权
    血栓切除导管

    公开(公告)号:US20070060908A1

    公开(公告)日:2007-03-15

    申请号:US11206680

    申请日:2005-08-18

    Abstract: Thrombectomy catheters are presented that have curved tip portions. A suction lumen extends from at or near the proximal end of the catheter to a suction port at or near the tip portion of the catheter. The curves of the thrombectomy catheter can be selected to place a suction port at or near a vessel wall for the more effective removal of thrombus resulting from directing the suction in the direction of the thrombus. In some embodiments, the tip portion of the catheter can be transitioned from a first configuration for delivery of the catheter into the vessel to a second more curved configuration with a desired design for application of suction. The catheter can be moved in a circumferential and/or lateral direction to cover selected portions of the inner vessel wall. In some embodiments, a partially occlusive structure can be used to reduce and/or redirect flow within the vessel to improve performance of the thrombectomy.

    Abstract translation: 呈现出具有弯曲尖端部分的血栓切除导管。 吸入腔从导管的近端处或附近延伸到导管尖端部分处或附近的吸入口。 可以选择血栓切除术导管的曲线以将血管口置于血管壁或血管壁附近,以便更有效地从血栓方向引导吸引血栓。 在一些实施例中,导管的尖端部分可以从用于将导管输送到容器中的第一构型转变成具有用于施加抽吸的期望设计的第二更弯曲构造。 导管可以在周向和/或横向移动以覆盖内部血管壁的选定部分。 在一些实施方案中,可以使用部分封闭结构来减少和/或重定向血管内的流动,以改善血栓切除术的性能。

    Legacy compatible spatial multiplexing systems and methods
    23.
    发明申请
    Legacy compatible spatial multiplexing systems and methods 有权
    遗留兼容的空间复用系统和方法

    公开(公告)号:US20050281241A1

    公开(公告)日:2005-12-22

    申请号:US11159812

    申请日:2005-06-22

    CPC classification number: H04L27/2613 H04B7/02 H04B7/0697 H04W24/00

    Abstract: Embodiments of legacy compatible spatial multiplexing systems and methods are disclosed. One method embodiment, among others, comprises receiving long training symbols and cyclic shifted long training symbols corresponding to legacy preamble portions of packets corresponding to first and second transmit signals, receiving long training symbols and inverted cyclic shifted long training symbols corresponding to spatial multiplexing portions of packets corresponding to first and second transmit signals, and combining the symbols corresponding to the first and second transmit antennas to estimate the respective channels.

    Abstract translation: 公开了传统兼容空间复用系统和方法的实施例。 一个方法实施例包括接收对应于与第一和第二发射信号相对应的分组的传统前导码部分的长训练符号和循环移位的长训练符号,接收对应于空间复用部分的长训练符号和反向循环移位长训练符号 分组对应于第一和第二发射信号,并组合对应于第一和第二发射天线的符号以估计相应的信道。

    Method and system for high data rate multi-channel WLAN architecture
    24.
    发明申请
    Method and system for high data rate multi-channel WLAN architecture 有权
    高数据速率多通道WLAN架构的方法和系统

    公开(公告)号:US20050180314A1

    公开(公告)日:2005-08-18

    申请号:US11033524

    申请日:2005-01-12

    CPC classification number: H04L5/023 H04B7/02

    Abstract: A method and system provides a way to achieve very high data rate expanded bandwidth (wide band) WLAN operations reusing existing single channel radio designs. The system provides a dual-channel form of operation for greater flexibility and performance across multiple platforms. Further, the system provides adaptive anti-aliasing techniques for eliminating aliasing due to adjacent channel waveform effects. These techniques mesh with existing systems cleanly.

    Abstract translation: 一种方法和系统提供了一种实现非常高的数据速率扩展带宽(宽带)WLAN操作的方式,重用现有的单通道无线电设计。 该系统提供了双通道的操作形式,可在多个平台上实现更大的灵活性和性能。 此外,该系统提供用于消除由于相邻信道波形效应引起的混叠的自适应抗混叠技术。 这些技术干净地与现有系统联网。

    Modified OFDM subcarrier profile
    25.
    发明申请
    Modified OFDM subcarrier profile 有权
    修改的OFDM子载波简档

    公开(公告)号:US20050117670A1

    公开(公告)日:2005-06-02

    申请号:US10927487

    申请日:2004-08-27

    CPC classification number: H04L27/2602

    Abstract: A 10 MHz channelized orthogonal frequency division multiplexing (OFDM) transmitter is provided that communicates using a modified OFDM packet structure with a half-rate oscillator having standard accuracy. The transmitter has an inverse fast fourier transform (IFFT) data processor that appends an outer pair of data subcarriers on either end of an OFDM subcarrier profile. An IFFT long sync processor appends an outer pair of binary phase shift key (BPSK) subcarriers on either end of an OFDM long sync subcarrier profile. By copying or appending the information of the data subcarriers closest to zero Hz. to more robust locations, 10 MHz channelized OFDM can be achieved with half-rate clocks and 20 PPM oscillators.

    Abstract translation: 提供了一种使用修正的OFDM分组结构与具有标准精度的半速率振荡器进行通信的10MHz信道化正交频分复用(OFDM)发射机。 发射机具有在OFDM子载波简档的任一端附加一对外部数据子载波对的快速傅立叶变换(IFFT)数据处理器。 IFFT长同步处理器在OFDM长同步子载波简档的任一端附加一对外部二进制相移键(BPSK)副载波。 通过复制或附加最接近零Hz的数据子载波的信息。 到更健壮的位置,可以使用半速率时钟和20 PPM振荡器来实现10 MHz信道化OFDM。

    ON-SIGNAL QUADRATURE MODULATOR CALIBRATION
    26.
    发明申请
    ON-SIGNAL QUADRATURE MODULATOR CALIBRATION 有权
    信号量程调制器校准

    公开(公告)号:US20050075815A1

    公开(公告)日:2005-04-07

    申请号:US10666410

    申请日:2003-09-19

    CPC classification number: H04L27/364 H03C3/406 H03D3/008 H03D3/009 H04B17/14

    Abstract: An on-signal calibration system I and Q signals of a transmitter to remove distortions in the RF output signal. The transmitter generates I and Q values and converts, modulates and combines the I and Q values into the RF output signal for transmission. The calibration system includes a detector, a sampler, a selector, an imbalance estimator, and an IQ corrector. The detector senses the RF output signal and provides a detection signal indicative thereof. The sampler samples the detection signal and provides digital samples. The selector selects from among the digital samples that correspond to predetermined ranges of the I and Q values, or otherwise predetermined selection boxes at predetermined phases. The imbalance estimator determines at least one imbalance estimate based on selected digital samples. The IQ corrector corrects the I and Q values using at least one imbalance estimate.

    Abstract translation: 发射机的信号校准系统I和Q信号,以消除RF输出信号中的失真。 发射机产生I和Q值,并将I和Q值转换,调制和组合成RF输出信号进行传输。 校准系统包括检测器,采样器,选择器,不平衡估计器和IQ校正器。 检测器感测RF输出信号并提供指示其的检测信号。 采样器对检测信号进行采样,并提供数字采样。 选择器从数字样本中选择对应于I和Q值的预定范围,或者在预定阶段选择预定的选择框。 不平衡估计器基于所选择的数字样本确定至少一个不平衡估计。 IQ校正器使用至少一个不平衡估计来校正I和Q值。

    Adaptive frequency equalizer
    27.
    发明申请
    Adaptive frequency equalizer 有权
    自适应频率均衡器

    公开(公告)号:US20050053128A1

    公开(公告)日:2005-03-10

    申请号:US10886025

    申请日:2004-07-08

    Abstract: An adaptive frequency equalization system providing an equalizer that has programmable taps that adjusts magnitude and phase of symbol information of a received signal and that provides equalized symbol information. The system includes a hard decision circuit that selects ideal symbol values using the equalized symbol information. A frequency response circuit determines frequency response update values using the ideal symbol values and the received signal. An adjust circuit updates stored frequency response information using the frequency response update values, and also updates the programmable taps of the equalizer using the stored frequency response information.

    Abstract translation: 一种自适应频率均衡系统,其提供均衡器,该均衡器具有调节接收信号的符号信息的幅度和相位并且提供均衡的符号信息的可编程抽头。 该系统包括使用均衡符号信息来选择理想符号值的硬判决电路。 频率响应电路使用理想符号值和接收信号来确定频率响应更新值。 调整电路使用频率响应更新值更新存储的频率响应信息,并且还使用存储的频率响应信息来更新均衡器的可编程抽头。

    Optical Modulators With Controllable Chirp
    30.
    发明申请
    Optical Modulators With Controllable Chirp 有权
    具有可控啁啾的光学调制器

    公开(公告)号:US20110222813A1

    公开(公告)日:2011-09-15

    申请号:US13032899

    申请日:2011-02-23

    Abstract: A semiconductor-based optical modulator is presented that includes a separate phase control section to adjust the amount of chirp present in the modulated output signal. At least one section is added to the modulator configuration and driven to create a pure “phase” signal that will is added to the output signal and modify the eiφ term inherent in the modulation function. The phase modulation control section may be located within the modulator itself (with one segment on each arm, driven by the same input signal), or may be disposed “outside” of the modulator on either the input waveguiding section or the output waveguiding section. The phase control section may be formed to comprise multiple segments (of different lengths), with the overall phase added to the propagating signal controlled by selecting the different segments to be energized to impart a phase delay to a signal propagating through the energized section(s).

    Abstract translation: 提出了一种基于半导体的光调制器,其包括单独的相位控制部分,用于调节调制输出信号中存在的线性调频音量。 至少一个部分被添加到调制器配置并被驱动以产生将被添加到输出信号并且修改ei&phgr的纯“相”信号。 术语固有的调制功能。 相位调制控制部分可以位于调制器本身内(每个臂上的一个段由相同的输入信号驱动),或者可以设置在输入波导部分或输出波导部分上的调制器的“外部”。 相位控制部分可以形成为包括多个段(不同长度),其中通过选择不同的被激励的段来控制传播信号的总相位,以向通过通电部分传播的信号施加相位延迟 )。

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