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1. 发明授权

US06446236B1 Reading encoded information subject to random and transient errors 有权
标题翻译：读取经过随机和瞬态错误的编码信息
公开(公告)号：US06446236B1
公开(公告)日：2002-09-03
申请号：US09418191
申请日：1999-10-13
申请人： Peter McEwen , Hossein Sedarat , Kelly Fitzpatrick
发明人： Peter McEwen , Hossein Sedarat , Kelly Fitzpatrick
IPC分类号： H03M1303
CPC分类号： G11B20/10055 , G11B5/012 , G11B5/09 , G11B20/10009 , G11B20/10296 , G11B20/1833 , G11B2005/0016 , H03M13/41 , H03M13/45 , H04L1/20
摘要： A scheme (apparatus and methods) for recovering encoded data from a data signal representing one or more data symbols and subject to random errors and transient errors. A system in accordance with this scheme includes a transient error detector, a reliability detector, an erasure flagger, and a decoder. The transient error detector is coupled to receive the data signal and is configured to identify one or more characteristics (e.g., a starting location and a midpoint location) of a transient error (e.g., a TA) in the data signal. The reliability detector is configured to compute a reliability metric for each data symbol. The erasure flagger identifies erasures based upon signals received from the transient error detector and the reliability detector. The decoder is configured to treat a data symbol as an erasure or as a valid data symbol based upon the output of the erasure flagger.
摘要翻译：用于从表示一个或多个数据符号的数据信号中恢复编码数据并受到随机误差和瞬态误差的方案（装置和方法）。根据该方案的系统包括瞬态误差检测器，可靠性检测器，擦除标志器和解码器。瞬态误差检测器被耦合以接收数据信号并且被配置为识别数据信号中的瞬态误差（例如，TA）的一个或多个特性（例如起始位置和中点位置）。可靠性检测器被配置为计算每个数据符号的可靠性度量。擦除标志符基于从瞬态误差检测器和可靠性检测器接收的信号来识别擦除。解码器被配置为基于擦除标志符的输出将数据符号视为擦除或作为有效数据符号。

2. 发明授权

US09374257B2 Methods and apparatuses of measuring impulse noise parameters in multi-carrier communication systems 有权
公开(公告)号：US09374257B2
公开(公告)日：2016-06-21
申请号：US11377114
申请日：2006-03-15
申请人： Hossein Sedarat
发明人： Hossein Sedarat
IPC分类号： H03D1/04 , H04L27/26
CPC分类号： H04L27/2647 , H04L27/2608
摘要： A method and apparatus for measuring and tracking Impulse Noise parameters in a communication system are described. The method includes estimating one or more parameters of the impulse noise, the parameters including a period, an offset and duration of the impulse noise.

3. 发明授权

US08659986B1 Crosstalk cancellation for a multiport ethernet system 有权
标题翻译：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
申请人： Jerry Martinson , Paul Langner , Hossein Sedarat
发明人： Jerry Martinson , Paul Langner , Hossein Sedarat
IPC分类号： H04J3/10
CPC分类号： H04J3/0697 , H04B3/32 , H04J3/10 , H04L7/002
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。

4. 发明申请

US20050190871A1 Multicarrier communication using a time domain equalizing filter 失效
标题翻译：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
IPC分类号： H04B1/10 , H04L25/02 , H04L25/03 , H04L27/26
CPC分类号： H04L25/03012 , H04L25/0216 , H04L2025/03414 , H04L2025/03605
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。

5. 发明授权

US08861663B1 Correlated noise canceller for high-speed ethernet receivers 有权
标题翻译：高速以太网接收机的相关噪声消除器
公开(公告)号：US08861663B1
公开(公告)日：2014-10-14
申请号：US13350624
申请日：2012-01-13
申请人： Hossein Sedarat , Fadi Saibi
发明人： Hossein Sedarat , Fadi Saibi
IPC分类号： H04B1/10
CPC分类号： H04L25/03012 , H04L2025/03426
摘要： A method of operation in an ethernet receiver circuit is disclosed. The method comprises sampling an input signal to generate a sampled signal having a sampled noise component and a sampled data component. The sampled signal is sliced, and a slicer error determined based on the slicing of the sampled signal. A subsequently sampled noise component is filtered based on the slicer error.
摘要翻译：公开了以太网接收机电路中的操作方法。该方法包括对输入信号进行采样以产生具有采样噪声分量和采样数据分量的采样信号。采样信号被分片，并且基于采样信号的分片确定限幅器误差。基于限幅器误差对随后采样的噪声分量进行滤波。

6. 发明授权

US07443916B2 Method and apparatus for communication in the presence of impulse noise 失效
标题翻译：在存在脉冲噪声的情况下进行通信的方法和装置
公开(公告)号：US07443916B2
公开(公告)日：2008-10-28
申请号：US10721445
申请日：2003-11-24
申请人： Hossein Sedarat , Ben Miller
发明人： Hossein Sedarat , Ben Miller
IPC分类号： H04L27/28 , H04B1/10 , H03D1/04
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。

7. 发明授权

US07433395B2 Reliable multicarrier communication in the presence of timing phase error 失效
标题翻译：可靠的多载波通信存在定时相位误差
公开(公告)号：US07433395B2
公开(公告)日：2008-10-07
申请号：US10773054
申请日：2004-02-04
申请人： Hossein Sedarat
发明人： Hossein Sedarat
IPC分类号： H04B1/38
CPC分类号： H04L27/2657 , H04L27/2608 , H04L27/2675
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。

8. 发明申请

US20060222098A1 Impulse noise gating in DSL systems 审中-公开
标题翻译： DSL系统中的脉冲噪声门控
公开(公告)号：US20060222098A1
公开(公告)日：2006-10-05
申请号：US11377084
申请日：2006-03-15
申请人： Hossein Sedarat , Philip DesJardins
发明人： Hossein Sedarat , Philip DesJardins
IPC分类号： H03D1/04 , H04K1/10
CPC分类号： H04L5/006 , H04L5/0007 , H04L5/0046 , H04L27/2647
摘要： Embodiments of methods and apparatuses for gating impulse noise in a communication system are described. In one embodiment, a quality measure of a received signal on a communication channel is not adjusted when corruption by impulse noise in the received signal is detected. In another embodiment, tuning parameters of a DSL modem are not adjusted when corruption by impulse noise in the received signal is detected.
摘要翻译：对通信系统中脉冲噪声门控的方法和装置的实施例进行了说明。在一个实施例中，当检测到接收信号中的脉冲噪声的损坏时，不调整通信信道上的接收信号的质量测量。在另一个实施例中，当检测到接收信号中的脉冲噪声的损坏时，不调整DSL调制解调器的调谐参数。

9. 发明申请

US20060193390A1 Methods and apparatuses for canceling correlated noise in a multi-carrier communication system 失效
标题翻译：在多载波通信系统中消除相关噪声的方法和装置
公开(公告)号：US20060193390A1
公开(公告)日：2006-08-31
申请号：US11067434
申请日：2005-02-25
申请人： Hossein Sedarat
发明人： Hossein Sedarat
IPC分类号： H04L27/06 , H03D1/04 , H04K1/10
CPC分类号： H04L27/2608 , H03D1/04 , H03D3/002 , H04L25/03828 , H04L27/2647
摘要： Embodiments of an apparatus, system, and method are described for a multi-carrier communication system that cancels at least some correlated noise estimated to be present in a channel in the multi-carrier communication system. Values of noise present on at least on reference channel in a multi-channel communication system may be measured. Correlated noise on a second target channel using the noise measurement on the reference channel may be estimated. A residual noise on the second target channel may be determined by canceling the estimated correlated noise on the second target channel.
摘要翻译：针对多载波通信系统描述了一种装置，系统和方法的实施例，该多载波通信系统消除估计出存在于多载波通信系统中的信道中的至少一些相关噪声。可以测量存在于多通道通信系统中的至少一个参考通道上的噪声值。可以估计在参考通道上使用噪声测量的第二目标通道上的相关噪声。可以通过消除第二目标信道上的估计的相关噪声来确定第二目标信道上的残余噪声。

10. 发明申请

US20060083324A1 Method and apparatus for detecting transmission errors for digital subscriber lines 审中-公开
标题翻译：用于检测数字用户线路的传输错误的方法和装置
公开(公告)号：US20060083324A1
公开(公告)日：2006-04-20
申请号：US11185648
申请日：2005-07-20
申请人： Philip DesJardins , Hossein Sedarat
发明人： Philip DesJardins , Hossein Sedarat
IPC分类号： H04K1/10
CPC分类号： H04L1/0061 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L27/2647
摘要： A multi-carrier communication system receives a plurality of data frames comprised of a plurality of bit groups in a data stream of the multi-carrier communication system, wherein up to R bit groups are identified as corrupted by analyzing corresponding tone values, and corrects the up to R bit groups associated with one or more corrupt frames of the plurality of data frames.
摘要翻译：多载波通信系统在多载波通信系统的数据流中接收由多个比特组构成的多个数据帧，其中通过分析对应的音调值将多达R个比特组识别为已被破坏，并校正直到与所述多个数据帧中的一个或多个损坏帧相关联的R位组。

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