Crosstalk cancellation for a multiport ethernet system
    2.
    发明授权
    Crosstalk cancellation for a multiport ethernet system 有权
    多端口以太网系统的串扰消除

    公开(公告)号:US08659986B1

    公开(公告)日:2014-02-25

    申请号:US13190419

    申请日:2011-07-25

    IPC分类号: H04J3/10

    摘要: A transceiver system is disclosed. The transceiver system comprises a first transceiver physical layer circuit (PHY) having a first plurality of channels and a second transceiver PHY disposed adjacent the first transceiver PHY and having a second plurality of channels. Filter circuitry is coupled between at least one of the plurality of first channels and at least one of the plurality of second channels.

    摘要翻译: 公开了一种收发机系统。 收发机系统包括具有第一多个信道的第一收发器物理层电路(PHY)和邻近第一收发器PHY设置并且具有第二多个信道的第二收发器PHY。 滤波器电路耦合在多个第一通道中的至少一个和多个第二通道中的至少一个之间。

    Multicarrier communication using a time domain equalizing filter
    3.
    发明申请
    Multicarrier communication using a time domain equalizing filter 失效
    使用时域均衡滤波器进行多载波通信

    公开(公告)号:US20050190871A1

    公开(公告)日:2005-09-01

    申请号:US10789553

    申请日:2004-02-26

    申请人: Hossein Sedarat

    发明人: Hossein Sedarat

    摘要: Various methods and apparatus are described that use a filter. A receiver may be configured to receive multi-tone signals. The receiver has a Time Domain Equalizer filter employing an algorithm to shorten a length of an incoming impulse response to equal to or less than a guard period by calculating a minimum mean square error solution in combination with measuring an inter-symbol interference of a channel.

    摘要翻译: 描述了使用过滤器的各种方法和装置。 接收机可以被配置为接收多音调信号。 接收机具有时域均衡器滤波器,该滤波器采用算法,通过与测量信道的符号间干扰相结合计算最小均方误差方案,将输入脉冲响应的长度缩短到等于或小于保护周期。

    Low-power idle mode for network transceiver
    4.
    发明授权
    Low-power idle mode for network transceiver 有权
    网络收发器的低功耗空闲模式

    公开(公告)号:US08156359B1

    公开(公告)日:2012-04-10

    申请号:US12563927

    申请日:2009-09-21

    IPC分类号: G06F1/32 H04B1/38 H04B7/005

    摘要: Low-power idle mode for network transceivers. In one aspect, a method for reducing power consumption of a transceiver connected to a communication network includes entering a low-power idle mode, and in this mode, repeatedly turning off a transmitter of the transceiver and turning on the transmitter according to a pattern, where the pattern has been customized based on characteristics of the receiver. Turning off the transmitter conserves power consumed by the transceiver.

    摘要翻译: 网络收发器的低功耗空闲模式。 一方面,一种用于降低连接到通信网络的收发机的功耗的方法包括进入低功率空闲模式,并且在该模式下,重复关闭收发器的发射机并根据模式接通发射机, 其中基于接收机的特性定制了图案。 关闭发射机可以节省收发器的功耗。

    COMPENSATION OF ETHERNET TRANSMIT BASELINE WANDER
    5.
    发明申请
    COMPENSATION OF ETHERNET TRANSMIT BASELINE WANDER 有权
    以太网发射基线信号的补偿

    公开(公告)号:US20090202003A1

    公开(公告)日:2009-08-13

    申请号:US12369702

    申请日:2009-02-11

    IPC分类号: H04B3/00

    摘要: Compensation of transmit baseline wander in data transmission on a network. In one aspect, compensating for baseline wander includes receiving a signal to be transmitted by a transmitter, where the transmitter is operable with a higher-speed transmission standard requiring magnetics a first open circuit inductance. The signal is processed to compensate for a transmit baseline wander in the signal, the transmit baseline wander associated with a lower-speed transmission standard that requires magnetics with a second open circuit inductance that is higher than the first open circuit inductance. The processed signal is to be provided for transmission on a twisted pair cable of the network.

    摘要翻译: 网络数据传输中传输基线漂移的补偿。 在一个方面,对基线漂移的补偿包括接收要由发射机发射的信号,其中发射机可以用需要磁性的第一开路电感的较高速度传输标准来操作。 该信号被处理以补偿信号中的发射基线漂移,该发射基线漂移与低速传输标准相关联,该低速传输标准要求具有高于第一开路电感的第二开路电感的磁性。 经处理的信号将被提供用于在网络的双绞线电缆上传输。

    Methods and apparatuses to provide synchronization symbol on demand for DSL systems
    6.
    发明授权
    Methods and apparatuses to provide synchronization symbol on demand for DSL systems 有权
    为DSL系统提供同步符号的方法和装置

    公开(公告)号:US07555037B2

    公开(公告)日:2009-06-30

    申请号:US11377083

    申请日:2006-03-15

    申请人: Hossein Sedarat

    发明人: Hossein Sedarat

    IPC分类号: H04L5/16

    摘要: A method and apparatus for providing synchronization data on demand are described. The method includes sending one or more synchronization parameters from a receiver to a transmitter in a data communication system, and adjusting transmission of synchronization data from a transmitter to a receiver using the one or more parameters sent by the receiver.

    摘要翻译: 描述了根据需要提供同步数据的方法和装置。 该方法包括在数据通信系统中从接收器向发射机发送一个或多个同步参数,以及使用由接收机发送的一个或多个参数来调整从发射机到接收机的同步数据传输。

    RELIABLE MULTICARRIER COMMUNICATION IN THE PRESENCE OF TIMING PHASE ERROR
    7.
    发明申请
    RELIABLE MULTICARRIER COMMUNICATION IN THE PRESENCE OF TIMING PHASE ERROR 审中-公开
    存在时序相位误差的可靠多媒体通信

    公开(公告)号:US20080317110A1

    公开(公告)日:2008-12-25

    申请号:US12201779

    申请日:2008-08-29

    申请人: Hossein Sedarat

    发明人: Hossein Sedarat

    IPC分类号: H04B17/00

    摘要: A method, system and apparatus for reliable multicarrier communication in the presence of timing phase error is disclosed. Phase noise due to a sampling-time phase mismatch between a transmitter device and a receiver device is measured in a signal. A Gaussian noise power level in the signal is determined, and a gain factor associated with the phase noise is calculated. The gain factor is applied to the Gaussian noise power level to calculate an equivalent noise power. In one aspect, the equivalent noise power is used to determine a signal-to-noise ratio. In another aspect, the signal is a multicarrier signal including a plurality of sub-carriers.

    摘要翻译: 公开了一种在存在定时相位误差的情况下用于可靠多载波通信的方法,系统和装置。 在信号中测量由发射机设备和接收机设备之间的采样时间相位不匹配引起的相位噪声。 确定信号中的高斯噪声功率电平,并且计算与相位噪声相关联的增益因子。 增益因子被应用于高斯噪声功率电平以计算等效噪声功率。 在一个方面,使用等效噪声功率来确定信噪比。 在另一方面,信号是包括多个子载波的多载波信号。

    Bit-loading in multicarrier communication systems in the presence of an asymmetric, correlated gaussian noise sources
    8.
    发明授权
    Bit-loading in multicarrier communication systems in the presence of an asymmetric, correlated gaussian noise sources 失效
    在存在非对称相关高斯噪声源的情况下,在多载波通信系统中进行位加载

    公开(公告)号:US07421015B2

    公开(公告)日:2008-09-02

    申请号:US10789552

    申请日:2004-02-26

    申请人: Hossein Sedarat

    发明人: Hossein Sedarat

    IPC分类号: H04B1/38

    CPC分类号: H04L27/2608

    摘要: In general, various methods and apparatus are described that use a multi-tone receiver. The multi-tone receiver detects data in a multiple tone signal. The receiver has a detector module to measure a noise power level present in the system and to detect for an asymmetric Gaussian noise source in the background noise. An equivalent noise power is obtained by applying a compensating gain factor to the asymmetrical noise source. The gain factor is used when the detector indicates that the asymmetric Gaussian noise source exists in the background noise. Any bit-loading algorithm that is based on a symmetric Guassian noise source assumption can also be used with asymmetrical Guassian noise sources if this gain factor is applied.

    摘要翻译: 通常,描述了使用多音调接收机的各种方法和装置。 多音调接收机以多音调信号检测数据。 接收器具有检测器模块,用于测量系统中存在的噪声功率电平,并检测背景噪声中的非对称高斯噪声源。 通过对非对称噪声源施加补偿增益因子来获得等效噪声功率。 当检测器指示非对称高斯噪声源存在于背景噪声中时,使用增益因子。 如果应用该增益因子,则基于对称Guassian噪声源假设的任何位加载算法也可以与不对称Guassian噪声源一起使用。

    Multi-carrier communication bit-loading in presence of radio-frequency interferers
    9.
    发明申请
    Multi-carrier communication bit-loading in presence of radio-frequency interferers 审中-公开
    存在无线电频率干扰的多载波通信位加载

    公开(公告)号:US20060083321A1

    公开(公告)日:2006-04-20

    申请号:US11086882

    申请日:2005-03-21

    申请人: Hossein Sedarat

    发明人: Hossein Sedarat

    IPC分类号: H04K1/10

    摘要: An apparatus and method of compensating for radio frequency interference (RFI) if present in a tone in a multiple tone system to derive an equivalent noise power that can be used in bit-loading to achieve a better bit rate.

    摘要翻译: 一种补偿射频干扰(RFI)的装置和方法,如果存在于多音调系统中的音调中以导出可用于比特加载以获得更好比特率的等效噪声功率。

    Reliable multicarrier communication in the presence of periodic impulsive interference
    10.
    发明申请
    Reliable multicarrier communication in the presence of periodic impulsive interference 失效
    在存在周期冲击干扰的情况下可靠的多载波通信

    公开(公告)号:US20050111561A1

    公开(公告)日:2005-05-26

    申请号:US10721445

    申请日:2003-11-24

    IPC分类号: H04K1/10 H04L27/26

    CPC分类号: H04L27/2614 H04L27/2608

    摘要: A method, system and apparatus for reliable multicarrier communication in the presence of periodic impulsive interference is disclosed. A power level of noise in a signal is determined. An impulse noise in the signal is detected. A gain factor associated with the impulse noise is determined and applied to the noise power of the signal to calculate an equivalent noise power. In one aspect, the equivalent noise power is used to determine a signal-noise-ratio.

    摘要翻译: 公开了在存在周期冲击干扰的情况下用于可靠的多载波通信的方法,系统和装置。 确定信号中的噪声功率电平。 检测到信号中的脉冲噪声。 确定与脉冲噪声相关的增益因子并将其应用于信号的噪声功率以计算等效噪声功率。 在一个方面,使用等效噪声功率来确定信噪比。