-
1.发明授权Compensated phase detector for generating one or more clock signals using DFE detected data in a receiver 有权补偿相位检测器，用于在接收机中使用DFE检测数据产生一个或多个时钟信号公开(公告)号：US08467440B2
公开(公告)日：2013-06-18
申请号：US12776681
申请日：2010-05-10
Applicant: Pervez M. Aziz , Adam Healey
Inventor： Pervez M. Aziz , Adam Healey
IPC: H04B1/38
CPC classification number: H04L25/03057 , H04L25/03885 , H04L25/14 , H04L2025/03356 , H04L2025/0349
Abstract: A method and apparatus generating one or more clock signals in a receiver employing decision-feedback equalization (DFE). A received signal is sampled by a data clock and a transition clock, generating a data sample signal and a transition sample signal, respectively. A DFE correction is performed by DFE circuitry on the data sample signal to generate DFE detected data bits. The transition sample signal is sliced using a weighted threshold value to generate transition data bits. One or more phase updates of the data clock and the transition clocks are in response to the DFE detected data bits and the transition data bits. The weighted threshold is calculated from at least one of the prior-received DFE detected data bits. In one embodiment, the DFE detection may also be dependent on an effective delay (λ) of the DFE circuit in relation to the received signal baud-period, T.
Abstract translation: 一种在采用判决反馈均衡（DFE）的接收机中产生一个或多个时钟信号的方法和装置。 接收信号由数据时钟和转换时钟采样，分别产生数据采样信号和转换采样信号。 通过DFE电路对数据采样信号执行DFE校正，以产生DFE检测的数据位。 使用加权阈值对转换采样信号进行分片，以产生转换数据位。 数据时钟和转换时钟的一个或多个相位更新响应于DFE检测的数据位和转换数据位。 从先前接收的DFE检测数据位中的至少一个计算加权阈值。 在一个实施例中，DFE检测还可以取决于DFE电路相对于接收信号波特周期T的有效延迟（lambda）。
-
2.发明申请公开(公告)号：US20130195154A1
公开(公告)日：2013-08-01
申请号：US13360978
申请日：2012-01-30
Applicant: Mohammad Mobin , Amaresh Malipatil , Adam Healey , Ye Liu
Inventor： Mohammad Mobin , Amaresh Malipatil , Adam Healey , Ye Liu
IPC: H04B1/38
CPC classification number: H04L12/6418
Abstract: A communication port and method of adapting a transmit filter in the port to reduce receive errors by a receiver coupled to the transmit filter via a communication channel. The filter has coefficients that are adjusted in response to a first adaptation gain value, decision bits, and receiver error values. During a first time period, the coefficients are adjusted until changes in the coefficients are less than a first threshold amount. Then during a second time period, the coefficients are adjusted using a second adaptation gain value until changes in the coefficients are less than a second threshold amount. The second adaptation gain value is less than the first adaptation gain value and the second threshold amount being less than the first threshold amount. By using two or more adjustment periods with different gain values, the filter is adapted faster than using a single adjustment period with fixed adaptation gain.
Abstract translation: 一种在端口中适配发射滤波器的通信端口和方法，用于通过通信信道减少接收器与发射滤波器的接收误差。 滤波器具有响应于第一自适应增益值，判定位和接收器误差值而被调整的系数。 在第一时间段期间，系数被调整直到系数的变化小于第一阈值量。 然后在第二时间段期间，使用第二自适应增益值来调整系数，直到系数的变化小于第二阈值量。 第二自适应增益值小于第一适应增益值，第二阈值量小于第一阈值量。 通过使用具有不同增益值的两个或更多个调整周期，滤波器比使用具有固定自适应增益的单个调整周期更适合。
-
3.发明申请Compensated Phase Detector for Generating One or More Clock Signals Using DFE Detected Data in a Receiver 有权补偿相位检测器，用于在接收器中使用DFE检测到的数据生成一个或多个时钟信号公开(公告)号：US20110274154A1
公开(公告)日：2011-11-10
申请号：US12776681
申请日：2010-05-10
Applicant: Pervez M. Aziz , Adam Healey
Inventor： Pervez M. Aziz , Adam Healey
IPC: H04L27/01
CPC classification number: H04L25/03057 , H04L25/03885 , H04L25/14 , H04L2025/03356 , H04L2025/0349
Abstract: A method and apparatus generating one or more clock signals in a receiver employing decision-feedback equalization (DFE). A received signal is sampled by a data clock and a transition clock, generating a data sample signal and a transition sample signal, respectively. A DFE correction is performed DFE circuitry on the data sample signal to generate DFE detected data bits. The transition sample signal is sliced using a weighted threshold value to generate corrected transition data. One or more phase updates of the data clock and the transition clocks are in response to the DFE detected data bits and the corrected transition data. The weighted threshold is calculated from at least one prior-received DFE detected data bit. In one embodiment, the DFE correction may also be dependent on an effective delay (λ) of the DFE circuit in relation to the received signal baud-period, T.
Abstract translation: 一种在采用判决反馈均衡（DFE）的接收机中产生一个或多个时钟信号的方法和装置。 接收信号由数据时钟和转换时钟采样，分别产生数据采样信号和转换采样信号。 对数据采样信号进行DFE校正，以产生DFE检测的数据位。 使用加权阈值对转换采样信号进行分片，以产生校正的转换数据。 数据时钟和转换时钟的一个或多个相位更新响应于DFE检测的数据位和校正的转换数据。 从至少一个先前接收的DFE检测数据比特计算加权阈值。 在一个实施例中，DFE校正还可以取决于DFE电路相对于接收信号波特周期T的有效延迟（λ）。
-
4.发明授权Compensating transmission line to reduce sensitivity of performance due to channel length variation 有权补偿传输线，以降低通道长度变化对性能的敏感性公开(公告)号：US08054892B2
公开(公告)日：2011-11-08
申请号：US12370230
申请日：2009-02-12
Applicant: Pervez M. Aziz , Adam Healey , Shawn Logan
Inventor： Pervez M. Aziz , Adam Healey , Shawn Logan
CPC classification number: H04L25/03885 , H04L1/203
Abstract: Described embodiments provide a method and system for signal compensation in a SERDES communication system that includes monitoring the quality of a data signal after passing through a transmission channel. The quality of the data signal is monitored with at least one of a BER calculation algorithm and a received eye quality monitoring algorithm. Variations in channel length of the transmission channel are compensated for by i) adjusting a length of transmission line delay of the data signal from the transmission channel, ii) comparing the data signal quality with a threshold for the adjusted data signal; and iii) repeating i) and ii) until the data signal quality meets the threshold.
Abstract translation: 所描述的实施例提供了一种在SERDES通信系统中用于信号补偿的方法和系统，其包括在通过传输信道之后监视数据信号的质量。 使用BER计算算法和接收到的眼睛质量监视算法中的至少一个来监视数据信号的质量。 通过i）调整来自传输信道的数据信号的传输线延迟的长度来补偿传输信道的信道长度的变化，ii）将数据信号质量与调整数据信号的阈值进行比较; 和iii）重复i）和ii）直到数据信号质量满足阈值。
-
Patent Agency Ranking
5.发明申请Compensating Transmission line to Reduce Sensitivity of Performance due to Channel Length Variation 有权补偿传输线，降低通道长度变化对性能的敏感性公开(公告)号：US20100202498A1
公开(公告)日：2010-08-12
申请号：US12370230
申请日：2009-02-12
Applicant: Pervez M. Aziz , Adam Healey , Shawn Logan
Inventor： Pervez M. Aziz , Adam Healey , Shawn Logan
IPC: H04B1/40
CPC classification number: H04L25/03885 , H04L1/203
Abstract: Described embodiments provide a method and system for signal compensation in a SERDES communication system that includes monitoring the quality of a data signal after passing through a transmission channel. The quality of the data signal is monitored with at least one of a BER calculation algorithm and a received eye quality monitoring algorithm. Variations in channel length of the transmission channel are compensated for by i) adjusting a length of transmission line delay of the data signal from the transmission channel, ii) comparing the data signal quality with a threshold for the adjusted data signal; and iii) repeating i) and ii) until the data signal quality meets the threshold.
Abstract translation: 所描述的实施例提供了一种在SERDES通信系统中用于信号补偿的方法和系统，其包括在通过传输信道之后监视数据信号的质量。 使用BER计算算法和接收到的眼睛质量监视算法中的至少一个来监视数据信号的质量。 通过i）调整来自传输信道的数据信号的传输线延迟的长度来补偿传输信道的信道长度的变化，ii）将数据信号质量与调整数据信号的阈值进行比较; 和iii）重复i）和ii）直到数据信号质量满足阈值。
-
6.发明申请公开(公告)号：US20120014460A1
公开(公告)日：2012-01-19
申请号：US13243190
申请日：2011-09-23
Applicant: Pervez M. Aziz , Adam Healey , Shawn Logan
Inventor： Pervez M. Aziz , Adam Healey , Shawn Logan
CPC classification number: H04L25/03885 , H04L1/203
Abstract: Described embodiments provide a method and system for signal compensation in a SERDES communication system that includes monitoring the quality of a data signal after passing through a transmission channel. The quality of the data signal is monitored with at least one of a BER calculation algorithm and a received eye quality monitoring algorithm. Variations in channel length of the transmission channel are compensated for by i) adjusting a length of transmission line delay of the data signal from the transmission channel, ii) comparing the data signal quality with a threshold for the adjusted data signal; and iii) repeating i) and ii) until the data signal quality meets the threshold.
Abstract translation: 所描述的实施例提供了一种在SERDES通信系统中用于信号补偿的方法和系统，其包括在通过传输信道之后监视数据信号的质量。 使用BER计算算法和接收到的眼睛质量监视算法中的至少一个来监视数据信号的质量。 通过i）调整来自传输信道的数据信号的传输线延迟的长度来补偿传输信道的信道长度的变化，ii）将数据信号质量与调整数据信号的阈值进行比较; 和iii）重复i）和ii）直到数据信号质量满足阈值。
-
7.发明授权公开(公告)号：US08279950B2
公开(公告)日：2012-10-02
申请号：US13243190
申请日：2011-09-23
Applicant: Pervez M. Aziz , Adam Healey , Shawn Logan
Inventor： Pervez M. Aziz , Adam Healey , Shawn Logan
CPC classification number: H04L25/03885 , H04L1/203
Abstract: Described embodiments provide a method and system for signal compensation in a SERDES communication system that includes monitoring the quality of a data signal after passing through a transmission channel. The quality of the data signal is monitored with at least one of a BER calculation algorithm and a received eye quality monitoring algorithm. Variations in channel length of the transmission channel are compensated for by i) adjusting a length of transmission line delay of the data signal from the transmission channel, ii) comparing the data signal quality with a threshold for the adjusted data signal; and iii) repeating i) and ii) until the data signal quality meets the threshold.
Abstract translation: 所描述的实施例提供了一种在SERDES通信系统中用于信号补偿的方法和系统，其包括在通过传输信道之后监视数据信号的质量。 使用BER计算算法和接收到的眼睛质量监视算法中的至少一个来监视数据信号的质量。 通过i）调整来自传输信道的数据信号的传输线延迟的长度来补偿传输信道的信道长度的变化，ii）将数据信号质量与调整数据信号的阈值进行比较; 和iii）重复i）和ii）直到数据信号质量满足阈值。
-
8.发明申请Method and apparatus for frequency offset control of ethernet packets over a transport network 有权通过传输网络对以太网数据包进行频率偏移控制的方法和装置公开(公告)号：US20050041695A1
公开(公告)日：2005-02-24
申请号：US10643005
申请日：2003-08-18
Applicant: Mark Bordogna , Adam Healey , Peter Stropparo
Inventor： Mark Bordogna , Adam Healey , Peter Stropparo
CPC classification number: H04L47/10 , H04J3/0632 , H04J3/07 , H04L12/4604 , H04L47/11 , H04L47/18 , H04L47/22
Abstract: A method and apparatus are disclosed for compensating for a frequency offset between an ingress local area network and an egress local area network that communicate over a transport network. The bandwidth of an egress port is adjusted by varying an inter-packet gap size between each packet so that the packets can be delivered without overflowing an egress buffer. The size of the inter-packet gap is reduced when the frequency of the ingress local area network is greater than the frequency of the egress local area network. The size of the inter-packet gap is increased when the frequency of the ingress local area network is less than the frequency of the egress local area network. The size of the egress inter-packet gap may be statically or dynamically adjusted to compensate for a frequency offset.
Abstract translation: 公开了一种用于补偿在通过传输网络进行通信的入口局域网和出口局域网之间的频率偏移的方法和装置。 通过改变每个分组之间的分组间间隔大小来调整出口端口的带宽，使得可以在不溢出出口缓冲器的情况下传送分组。 当入口局域网的频率大于出口局域网的频率时，分组间间隙的大小减小。 当入口局域网的频率小于出口局域网的频率时，分组间间隙的大小增加。 可以静态地或动态地调整出口分组间间隙的大小以补偿频率偏移。
-
9.发明授权公开(公告)号：US08687682B2
公开(公告)日：2014-04-01
申请号：US13360978
申请日：2012-01-30
Applicant: Mohammad Mobin , Amaresh Malipatil , Adam Healey , Ye Liu
Inventor： Mohammad Mobin , Amaresh Malipatil , Adam Healey , Ye Liu
CPC classification number: H04L12/6418
Abstract: A communication port and method of adapting a transmit filter in the port to reduce receive errors by a receiver coupled to the transmit filter via a communication channel. The filter has coefficients that are adjusted in response to a first adaptation gain value, decision bits, and receiver error values. During a first time period, the coefficients are adjusted until changes in the coefficients are less than a first threshold amount. Then during a second time period, the coefficients are adjusted using a second adaptation gain value until changes in the coefficients are less than a second threshold amount. The second adaptation gain value is less than the first adaptation gain value and the second threshold amount being less than the first threshold amount. By using two or more adjustment periods with different gain values, the filter is adapted faster than using a single adjustment period with fixed adaptation gain.
Abstract translation: 一种在端口中适配发射滤波器的通信端口和方法，用于通过通信信道减少接收器与发射滤波器的接收误差。 滤波器具有响应于第一自适应增益值，判定位和接收器误差值而被调整的系数。 在第一时间段期间，系数被调整直到系数的变化小于第一阈值量。 然后在第二时间段期间，使用第二自适应增益值来调整系数，直到系数的变化小于第二阈值量。 第二自适应增益值小于第一适应增益值，第二阈值量小于第一阈值量。 通过使用具有不同增益值的两个或更多个调整周期，滤波器比使用具有固定自适应增益的单个调整周期更适合。
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.013 seconds)
