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13 条记录 (耗时 0.076 秒)

    Transmit amplitude independent adaptive equalizer
    3.
    发明申请
    Transmit amplitude independent adaptive equalizer 有权
    发射幅度独立自适应均衡器

    公开(公告)号：US20050254565A1

    公开(公告)日：2005-11-17

    申请号：US11187265

    申请日：2005-07-22

    申请人： Apu Sivadas ,  Atul Gupta ,  Kenneth Lazaris-Brunner ,  Vasilis Papanikolaou ,  Rajiv Shukla ,  Bharat Tailor

    发明人： Apu Sivadas ,  Atul Gupta ,  Kenneth Lazaris-Brunner ,  Vasilis Papanikolaou ,  Rajiv Shukla ,  Bharat Tailor

    IPC分类号： H04L25/03 ,  H03H7/30 ,  H03H21/00 ,  H04B3/04 ,  H04L25/00 ,  H04L27/08

    CPC分类号： H04L25/03885

    摘要： Transmit amplitude independent adaptive equalizers are provided that compensate for transmission losses in an input signal when the transmit signal amplitude is unknown. Several embodiments are provided, including a first embodiment having an equalizer core, a controllable-swing slicer and an amplitude control loop, a second embodiment having an equalizer core, a fixed-swing slicer and a control loop, a third embodiment having an equalizer core, a variable gain amplifier, and a variable gain amplifier control loop, and a fourth embodiment having an equalizer core, a fixed-swing slicer, a variable gain amplifier, and a variable gain amplifier control loop.

    摘要翻译： 提供发射幅度独立的自适应均衡器，当发射信号幅度未知时，其补偿输入信号中的传输损耗。 提供了几个实施例，包括具有均衡器核心，可控摆动限幅器和幅度控制环路的第一实施例，具有均衡器核心，固定摆动切片器和控制回路的第二实施例，具有均衡器核心 ，可变增益放大器和可变增益放大器控制环路，以及具有均衡器核心，固定摆幅限幅器，可变增益放大器和可变增益放大器控制环路的第四实施例。

    Transmit amplitude independent adaptive equalizer
    6.
    发明授权
    Transmit amplitude independent adaptive equalizer 有权
    发射幅度独立自适应均衡器

    公开(公告)号：US07415064B2

    公开(公告)日：2008-08-19

    申请号：US11187265

    申请日：2005-07-22

    申请人： Apu Sivadas ,  Atul Krishna Gupta ,  Kenneth Steven Lazaris-Brunner ,  Vasilis Papanikolaou ,  Rajiv Kumar Shukla ,  Bharat Tailor

    发明人： Apu Sivadas ,  Atul Krishna Gupta ,  Kenneth Steven Lazaris-Brunner ,  Vasilis Papanikolaou ,  Rajiv Kumar Shukla ,  Bharat Tailor

    IPC分类号： H03K5/159

    CPC分类号： H04L25/03885

    摘要： Transmit amplitude independent adaptive equalizers are provided that compensate for transmission losses in an input signal when the transmit signal amplitude is unknown. Several embodiments are provided, including a first embodiment having an equalizer core, a controllable-swing slicer and an amplitude control loop, a second embodiment having an equalizer core, a fixed-swing slicer and a control loop, a third embodiment having an equalizer core, a variable gain amplifier, and a variable gain amplifier control loop, and a fourth embodiment having an equalizer core, a fixed-swing slicer, a variable gain amplifier, and a variable gain amplifier control loop.

    摘要翻译： 提供发射幅度独立的自适应均衡器，当发射信号幅度未知时，其补偿输入信号中的传输损耗。 提供了几个实施例，包括具有均衡器核心，可控摆动限幅器和幅度控制环路的第一实施例，具有均衡器核心，固定摆动切片器和控制回路的第二实施例，具有均衡器核心 ，可变增益放大器和可变增益放大器控制环路，以及具有均衡器核心，固定摆幅限幅器，可变增益放大器和可变增益放大器控制环路的第四实施例。

    Transmit amplitude independent adaptive equalizer
    7.
    发明授权
    Transmit amplitude independent adaptive equalizer 有权
    发射幅度独立自适应均衡器

    公开(公告)号：US07180941B2

    公开(公告)日：2007-02-20

    申请号：US11187266

    申请日：2005-07-22

    申请人： Apu Sivadas ,  Atul Krishna Gupta ,  Kenneth Steven Lazaris-Brunner ,  Vasilis Papanikolaou ,  Rajiv Kumar Shukla ,  Bharat Tailor

    发明人： Apu Sivadas ,  Atul Krishna Gupta ,  Kenneth Steven Lazaris-Brunner ,  Vasilis Papanikolaou ,  Rajiv Kumar Shukla ,  Bharat Tailor

    IPC分类号： H03H7/30

    CPC分类号： H04L25/03885

    摘要： Transmit amplitude independent adaptive equalizers are provided that compensate for transmission losses in an input signal when the transmit signal amplitude is unknown. Several embodiments are provided, including a first embodiment having an equalizer core, a controllable-swing slicer and an amplitude control loop, a second embodiment having an equalizer core, a fixed-swing slicer and a control loop, a third embodiment having an equalizer core, a variable gain amplifier, and a variable gain amplifier control loop, and a fourth embodiment having an equalizer core, a fixed-swing slicer, a variable gain amplifier, and a variable gain amplifier control loop.

    摘要翻译： 提供发射幅度独立的自适应均衡器，当发射信号幅度未知时，其补偿输入信号中的传输损耗。 提供了几个实施例，包括具有均衡器核心，可控摆动限幅器和幅度控制环路的第一实施例，具有均衡器核心，固定摆动切片器和控制回路的第二实施例，具有均衡器核心 ，可变增益放大器和可变增益放大器控制环路，以及具有均衡器核心，固定摆幅限幅器，可变增益放大器和可变增益放大器控制环路的第四实施例。

    Adaptive equalizer with large data rate range
    8.
    发明授权
    Adaptive equalizer with large data rate range 有权

    公开(公告)号：US07065134B2

    公开(公告)日：2006-06-20

    申请号：US09940053

    申请日：2001-08-27

    申请人： Vasilis Papanikolaou ,  Apu Sivadas ,  Atul Gupta ,  Hossein Shakiba

    发明人： Vasilis Papanikolaou ,  Apu Sivadas ,  Atul Gupta ,  Hossein Shakiba

    IPC分类号： H03K5/159 ,  H03H7/30

    CPC分类号： H04B3/145 ,  H04L25/03885

    摘要： An adaptive equalizer with a large data rate range is provided. The equalizer comprises an equalizer core, a slicer and an automatic gain control (AGC) loop. The equalizer core is coupled to an input signal from a transmission medium and applies a transfer function to the input signal to compensate for losses incurred in the transmission medium in order to generate a core output signal. The equalizer core is also coupled to a bandwidth control signal that controls a bandwidth of the transfer function. The slicer is coupled to the core output signal and converts the core output signal to a digital output signal having a fixed digital output swing that approximates a transmission swing of the input signal prior to transmission over the transmission medium. The AGC loop is coupled to the core output signal and the digital output signal and compares the core output signal with the digital output signal in order to generate the bandwidth control signal.

    Digital Video Cable Driver
    10.
    发明申请
    Digital Video Cable Driver 审中-公开
    数字视频电缆驱动器

    公开(公告)号：US20090153688A1

    公开(公告)日：2009-06-18

    申请号：US11955929

    申请日：2007-12-13

    申请人： Vasilis Papanikolaou

    发明人： Vasilis Papanikolaou

    IPC分类号： H04N5/228 ,  H03F3/45 ,  H03M9/00

    CPC分类号： H03F3/45183 ,  H03F2200/456 ,  H03F2200/552 ,  H03F2203/45674 ,  H03K19/01707 ,  H04L25/028

    摘要： In accordance with the teachings described herein, a digital video cable driver is provided that includes an input stage, an output stage and an amplification stage. The input stage converts a pair of differential input voltages into a control current. The output stage generates a digital output voltage for transmission over a cable. The amplification stage responds to the control current to control a voltage swing of the digital output voltage as a function of the control current. The amplification stage may include a transistor circuit that varies the digital output voltage in proportion to variations in the control current to cause the voltage swing, wherein the control current causes one or more transistors in the transistor circuit to remain in a saturated state during operation of the digital video cable driver.

    摘要翻译： 根据本文所述的教导，提供了包括输入级，输出级和放大级的数字视频电缆驱动器。 输入级将一对差分输入电压转换为控制电流。 输出级产生数字输出电压以通过电缆传输。 放大级响应控制电流来控制数字输出电压的电压摆幅，作为控制电流的函数。 放大级可以包括晶体管电路，其与控制电流的变化成比例地改变数字输出电压以引起电压摆幅，其中控制电流使得晶体管电路中的一个或多个晶体管在运行期间保持在饱和状态 数字视频线驱动。