利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.015 秒)

    CIRCUIT SYSTEMS AND METHODS USING PRIME NUMBER INTERLEAVE OPTIMIZATION FOR BYTE LANE TO TIME SLICE CONVERSION
    1.
    发明申请
    CIRCUIT SYSTEMS AND METHODS USING PRIME NUMBER INTERLEAVE OPTIMIZATION FOR BYTE LANE TO TIME SLICE CONVERSION 有权
    电路系统和方法使用主频优先选择字节到时间转换

    公开(公告)号：US20140095743A1

    公开(公告)日：2014-04-03

    申请号：US13630343

    申请日：2012-09-28

    申请人： Jeffery T. Nichols ,  Roger R. Darr

    发明人： Jeffery T. Nichols ,  Roger R. Darr

    IPC分类号： G06F3/00

    CPC分类号： G06F7/724 ,  G06F13/4018

    摘要： Circuit systems and methods use prime number interleave optimization for byte lane to time slice conversion of incoming data streams. Generally, the systems and methods buffer data for at least a number of samples equal to the number of byte lanes. Then the samples are transferred to a bank of buffers whose width is the smallest prime number greater than or equal to the number of byte lanes, N. Thus, the systems and methods utilize P minus N phantom lanes. As data is transferred, the data is circularly interleaved (position * N modulo P) so that all data which will be needed at the same time wind up in different readable devices, i.e. the buffers. By appropriate addressing, the data in the different readable devices may then be read in the form of time slices. The process can be reversed for time slice to byte lane conversion.

    摘要翻译： 电路系统和方法使用素数交织优化用于字节通道到输入数据流的时间片转换。 通常，系统和方法对于等于字节通道数的至少多个样本的缓冲数据。 然后将样本转移到宽度为大于或等于字节通道数N的最小质数的缓冲器组。因此，系统和方法利用P减N幻影通道。 当数据被传送时，数据被循环交错（位置* N模P），使得同时需要的所有数据在不同的可读设备即缓冲器中卷起。 通过适当寻址，可以以时间片的形式读取不同可读设备中的数据。 时间片到字节通道转换的过程可以颠倒。

    Configurable filter for processing television audio signals
    2.
    发明授权
    Configurable filter for processing television audio signals 有权
    用于处理电视音频信号的可配置滤波器

    公开(公告)号：US08526622B2

    公开(公告)日：2013-09-03

    申请号：US12876482

    申请日：2010-09-07

    申请人： Matthew S. Barnhill ,  Roger R. Darr

    发明人： Matthew S. Barnhill ,  Roger R. Darr

    IPC分类号： H04H20/47

    CPC分类号： H04S3/02

    摘要： Television audio signal encoders include a matrix that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The matrix also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoders also include a configurable infinite impulse response digital filter that selectively uses one or more sets of filter coefficients to filter the difference signal and/or the sum signals. Each selectable set of filter coefficients is associated with a unique filtering application to prepare the difference signal for transmission. Decoders with the matrix are also disclosed.

    摘要翻译： 电视音频信号编码器包括将左声道音频信号和右声道音频信号相加以产生和信号的矩阵。 矩阵还从另一个中减去左右音频信号中的一个以产生差分信号。 编码器还包括可配置的无限脉冲响应数字滤波器，其选择性地使用一组或多组滤波器系数来对差分信号和/或和信号进行滤波。 每个可选择的滤波器系数集合与唯一的滤波应用相关联，以准备用于传输的差分信号。 还公开了具有矩阵的解码器。

    Method for accelerating the training of adaptive echo cancelers in the presence of interfering sinusoidal signals
    3.
    发明授权
    Method for accelerating the training of adaptive echo cancelers in the presence of interfering sinusoidal signals 失效
    在存在干扰正弦信号的情况下加速自适应回波消除器的训练的方法

    公开(公告)号：US06658055B1

    公开(公告)日：2003-12-02

    申请号：US09615309

    申请日：2000-07-13

    申请人： Roger R. Darr

    发明人： Roger R. Darr

    IPC分类号： H03H730

    CPC分类号： H04B3/23

    摘要： A system and method for canceling both an echo signal and a spurious sinusoidal signal, such as a telephone dialtone or a carrier signal, from a return signal in a communications system involves producing a replica of the echo signal using an adaptive filter and producing a replica of the sinusoidal signal using an oscillator circuit. The replicas are subtracted from the return signal. The magnitude and phase of the sinusoidal signal are determined by generating a signal that is close in frequency to the expected frequency of the sinusoid and then correlating it to the return signal. The correlation produces a replica of the sinusoid.

    摘要翻译： 用于从通信系统中的返回信号中消除回波信号和伪正弦信号（例如电话拨号或载波信号）的系统和方法包括使用自适应滤波器产生回波信号的副本并产生副本 的正弦信号使用振荡电路。 从返回信号中减去副本。 正弦信号的幅度和相位通过产生频率接近正弦曲线的预期频率的信号并将其与返回信号相关联来确定。 相关性产生正弦曲线的复制品。

    Communication clock transport method and device
    5.
    发明授权
    Communication clock transport method and device 有权
    通讯时钟传输方式及装置

    公开(公告)号：US08649400B2

    公开(公告)日：2014-02-11

    申请号：US12846080

    申请日：2010-07-29

    申请人： Roger R. Darr ,  Jeff Nichols

    发明人： Roger R. Darr ,  Jeff Nichols

    IPC分类号： H04J3/06

    CPC分类号： H04J3/167 ,  H04J3/0685

    摘要： A method and apparatus for timing an output signal based on timing of an input signal is provided. A method includes determining a first clock rate derived from the input signal during a first time interval measured by a reference clock. The method also includes signal processing logic to determine a second clock rate during a second time interval based on an error signal that is calculated as a difference between the first clock rate multiplied by the second time interval and a previous value of the second clock rate multiplied by the first time interval.

    摘要翻译： 提供了一种基于输入信号的定时对输出信号进行定时的方法和装置。 一种方法包括确定在由参考时钟测量的第一时间间隔期间从输入信号导出的第一时钟速率。 该方法还包括信号处理逻辑，用于基于作为第一时钟速率乘以第二时间间隔和第二时钟速率的先前值之间的差被计算的误差信号在第二时间间隔期间确定第二时钟速率 按时间间隔。

    COMMUNICATION CLOCK TRANSPORT METHOD AND DEVICE
    6.
    发明申请
    COMMUNICATION CLOCK TRANSPORT METHOD AND DEVICE 有权
    通信时钟传输方法和设备

    公开(公告)号：US20120027403A1

    公开(公告)日：2012-02-02

    申请号：US12846080

    申请日：2010-07-29

    申请人： Roger R. DARR ,  Jeff NICHOLS

    发明人： Roger R. DARR ,  Jeff NICHOLS

    IPC分类号： H04J14/08

    CPC分类号： H04J3/167 ,  H04J3/0685

    摘要： A method and apparatus for timing an output signal based on timing of an input signal is provided. A method includes determining a first clock rate derived from the input signal during a first time interval measured by a reference clock. The method also includes signal processing logic to determine a second clock rate during a second time interval based on an error signal that is calculated as a difference between the first clock rate multiplied by the second time interval and a previous value of the second clock rate multiplied by the first time interval.

    摘要翻译： 提供了一种基于输入信号的定时对输出信号进行定时的方法和装置。 一种方法包括确定在由参考时钟测量的第一时间间隔期间从输入信号导出的第一时钟速率。 该方法还包括信号处理逻辑，用于基于作为第一时钟速率乘以第二时间间隔和第二时钟速率的先前值之间的差被计算的误差信号在第二时间间隔期间确定第二时钟速率 按时间间隔。