Adaptive delay base loss equalization
    3.
    发明授权
    Adaptive delay base loss equalization 有权
    自适应延迟碱损耗均衡

    公开(公告)号:US09219623B2

    公开(公告)日:2015-12-22

    申请号:US10956426

    申请日:2004-09-30

    IPC分类号: H04L25/02 H04L7/00 H04L25/03

    摘要: A method, system and apparatus to self-determine equalization parameters for a channel. An initiator sends an equalization insensitive signal (EIS) to a responder on channel to be equalized and begins a count. A responder responds with an EIS. When the initiator receives the response EIS the count is terminated. The count, which constitutes a measure of delay in the channel, may be used to determine desirable equalization parameters for the channel.

    摘要翻译: 用于自定义信道的均衡参数的方法,系统和装置。 发起者向均衡敏感信号(EIS)发送信道上的响应者以进行均衡并开始计数。 响应者回应EIS。 当启动器接收到响应EIS时,计数结束。 构成通道中的延迟量的计数可用于确定通道的期望的均衡参数。

    Digital Predistortion Training System
    4.
    发明申请
    Digital Predistortion Training System 有权
    数字预失真训练系统

    公开(公告)号:US20130034135A1

    公开(公告)日:2013-02-07

    申请号:US13616236

    申请日:2012-09-14

    IPC分类号: H04B1/38

    摘要: Techniques are provided herein for training a digital predistortion module in a wireless communication device. A controller identifies one or more participating wireless devices to participate in a training session during which the particular wireless device makes test transmissions and the one or more participating wireless devices make measurements based on reception of the test transmissions sent by the particular wireless device. The controller sends commands to the particular wireless device and to the one or more participating wireless devices to initiate the training session. The controller receives measurement data from the one or more participating wireless devices based on reception of the test transmissions from the particular wireless device during the training session and determines predistortion parameters for use by the particular wireless device based on the measurement data.

    摘要翻译: 本文提供了用于在无线通信设备中训练数字预失真模块的技术。 控制器识别一个或多个参与的无线设备以参与训练会话,在此期间,特定无线设备进行测试传输,并且一个或多个参与无线设备基于由特定无线设备发送的测试传输的接收进行测量。 控制器向特定的无线设备和一个或多个参与的无线设备发送命令以发起训练会话。 控制器基于接收来自特定无线设备的测试传输,在训练会话期间从一个或多个参与无线设备接收测量数据,并且基于测量数据确定特定无线设备使用的预失真参数。

    Acoustic echo canceller
    8.
    发明授权
    Acoustic echo canceller 有权
    声回波消除器

    公开(公告)号:US08411847B2

    公开(公告)日:2013-04-02

    申请号:US12136436

    申请日:2008-06-10

    摘要: Disclosed methods and systems measure acoustic responses to training signals activated prior to communication sessions. Profiles related to the acoustic responses are saved and adapted during communication sessions. Training signals may have uniform frequency distributions over a frequency range and may be in response to user inputs, timeouts, or predetermined events. In the next excessive divergence is detected, an adapted profile may be substituted by an original, trained profile.

    摘要翻译: 公开的方法和系统测量在通信会话之前激活的训练信号的声学响应。 在通信会话期间保存和调整与声响应相关的配置文件。 训练信号可以在频率范围上具有均匀的频率分布,并且可以响应于用户输入,超时或预定事件。 在下一个检测到过大的分歧时,适应的简档可以由原始的,训练的简档代替。

    Reliable startup and steady-state of estimation based CDR and DFE
    10.
    发明申请
    Reliable startup and steady-state of estimation based CDR and DFE 有权
    基于CDR和DFE的可靠启动和稳定估计

    公开(公告)号:US20070280343A1

    公开(公告)日:2007-12-06

    申请号:US11445781

    申请日:2006-06-01

    IPC分类号: H03H7/30

    摘要: An apparatus and methods for recovering a clock and a data stream from a source synchronous input data stream are disclosed. The apparatus comprises a filter, a decision feedback equalizer (DFE), a phase error detector, and a clock generator. The input data stream is coupled to the filter and the DFE. The DFE synchronizes the input data stream to a clock generated by the clock generator. A filter output and a DFE output are each coupled to the phase error detector. During an initialization period, the phase error detector conveys a phase error to the clock generator based on one or more phase error estimates of the filter output and during a period of steady-state operation, the phase error detector conveys a phase error to the clock generator based on one or more phase error estimates of the DFE output. The output of the DFE comprises a recovered data stream.

    摘要翻译: 公开了一种用于从源同步输入数据流恢复时钟和数据流的装置和方法。 该装置包括滤波器,判决反馈均衡器(DFE),相位误差检测器和时钟发生器。 输入数据流耦合到滤波器和DFE。 DFE将输入数据流同步到时钟发生器产生的时钟。 滤波器输出和DFE输出各自耦合到相位误差检测器。 在初始化期间,相位误差检测器基于滤波器输出的一个或多个相位误差估计和在稳态运行期间向时钟发生器传送相位误差,相位误差检测器将相位误差传送到时钟 基于DFE输出的一个或多个相位误差估计的发生器。 DFE的输出包括恢复的数据流。