公开(公告)号：US07680180B2

公开(公告)日：2010-03-16

申请号：US11425602

申请日：2006-06-21

申请人： Yuwei Zhang ,  Kevin Hwang ,  Jun Lu ,  Shue-Lee Chang

发明人： Yuwei Zhang ,  Kevin Hwang ,  Jun Lu ,  Shue-Lee Chang

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/03057 ,  H04L25/03267 ,  H04L2025/0349

摘要： A decision feedback equalizer is configured to equalize an input signal to generate a recovered output signal. Linear feed-forward filter circuitry is configured to provide a linearly filtered output signal based on the input signal. Composite trellis decoder circuitry configured to process a combined signal that is based on a combination of at least the linearly feed-forward filtered output signal and on output of linear or non-linear feedback filter circuitry, in accordance with state metrics generated by processing a composite trellis diagram relative to the combined signal, to provide a trellis-decoded output signal as input to the linear or non-linear feedback filter circuitry. The composite trellis decoder circuitry is further configured to provide a particular phase output of the combined signal, based on the state metrics, as the decoded output signal.

摘要翻译： 判定反馈均衡器被配置为均衡输入信号以产生恢复的输出信号。 线性前馈滤波器电路被配置为基于输入信号提供线性滤波的输出信号。 复合网格解码器电路，被配置为处理基于至少线性前馈滤波的输出信号和线性或非线性反馈滤波器电路的输出的组合的组合信号，根据通过处理复合 网格图相对于组合信号，以提供格状解码的输出信号作为线性或非线性反馈滤波器电路的输入。 复合网格解码器电路还被配置为基于状态度量提供组合信号的特定相位输出作为解码输出信号。

公开(公告)号：US20070140329A1

公开(公告)日：2007-06-21

申请号：US11425602

申请日：2006-06-21

申请人： Yuwei Zhang ,  Kevin Hwang ,  Jun Lu ,  Shue-Lee Chang

发明人： Yuwei Zhang ,  Kevin Hwang ,  Jun Lu ,  Shue-Lee Chang

IPC分类号： H03H7/30 ,  H04B1/10

CPC分类号： H04L25/03057 ,  H04L25/03267 ,  H04L2025/0349

摘要： A decision feedback equalizer is configured to equalize an input signal to generate a recovered output signal. Linear feed-forward filter circuitry is configured to provide a linearly filtered output signal based on the input signal. Composite trellis decoder circuitry configured to process a combined signal that is based on a combination of at least the linearly feed-forward filtered output signal and on output of linear or non-linear feedback filter circuitry, in accordance with state metrics generated by processing a composite trellis diagram relative to the combined signal, to provide a trellis-decoded output signal as input to the linear or non-linear feedback filter circuitry. The composite trellis decoder circuitry is further configured to provide a particular phase output of the combined signal, based on the state metrics, as the decoded output signal.

摘要翻译： 判定反馈均衡器被配置为均衡输入信号以产生恢复的输出信号。 线性前馈滤波器电路被配置为基于输入信号提供线性滤波的输出信号。 复合网格解码器电路，被配置为处理基于至少线性前馈滤波的输出信号和线性或非线性反馈滤波器电路的输出的组合的组合信号，根据通过处理复合 网格图相对于组合信号，以提供格状解码的输出信号作为线性或非线性反馈滤波器电路的输入。 复合网格解码器电路还被配置为基于状态度量提供组合信号的特定相位输出作为解码输出信号。

公开(公告)号：US06731697B1

公开(公告)日：2004-05-04

申请号：US09680909

申请日：2000-10-06

申请人： Joseph Boccuzzi ,  Kevin Hwang ,  Roopa Rao

发明人： Joseph Boccuzzi ,  Kevin Hwang ,  Roopa Rao

IPC分类号： H04L700

CPC分类号： H04L7/0334 ,  H04L7/007

摘要： Symbol timing is performed by providing a histogram of samples of a signal for a predetermined number of symbol times. An average, weighted average, or other method is applied to determine an average timing for a max eye opening for each symbol time. The average max eye opening timing is applied to an edge detection of a currently received signal to determine timing of a sample that is most likely to occur closest to the max eye opening for the current symbol. The invention may also be practiced based on a center timing of each symbol.

摘要翻译： 通过提供预定数量的符号时间的信号样本的直方图来执行符号定时。 应用平均加权平均或其他方法来确定每个符号时间的最大眼睛打开的平均时间。 将平均最大眼睛打开定时应用于当前接收的信号的边缘检测，以确定最接近当前符号的最大眼睛开度最可能发生的样本的定时。 本发明也可以基于每个符号的中心定时来实施。

公开(公告)号：US20110282724A1

公开(公告)日：2011-11-17

申请号：US12975286

申请日：2010-12-21

申请人： Kevin Hwang

发明人： Kevin Hwang

IPC分类号： G06Q30/00

CPC分类号： G06Q30/02 ,  G06Q30/0217

摘要： A method of subsidizing purchases through consumer participation in interactive advertising at the kiosk includes providing a user an option to receive a subsidy towards a kiosk purchase, a promotional coupon, or a reward voucher in exchange for viewing an advertisement and participating in a corresponding survey. After presenting the advertisement and survey to the user, the kiosk provides a reward to the user at the kiosk or at a participating vendor.

摘要翻译： 消费者通过消费者参与互动广告来补贴购买的方法包括向用户提供接收针对购物亭的购买补贴，促销优惠券或奖励券的选择，以换取观看广告并参与相应的调查。 在向用户呈现广告和调查之后，信息亭向信息亭或参与供应商处的用户提供奖励。

公开(公告)号：US06426982B1

公开(公告)日：2002-07-30

申请号：US09398939

申请日：1999-09-17

申请人： Lin Yang ,  Yan Zhong ,  Kevin Hwang

发明人： Lin Yang ,  Yan Zhong ,  Kevin Hwang

IPC分类号： H03D100

CPC分类号： G06F17/15 ,  H04B1/707 ,  H04B7/195 ,  H04B2201/70707 ,  H04L27/2278 ,  H04L2027/0065

摘要： Method and system for efficiently and quickly forming a sequence of convolution values from an over-sampled digital signal sequence. Convolution value differences are computable from a set of digital signal values that is smaller than the original set of signal values by a factor of R, the over-sampling rate. The number of adders and the associated time delay for computation of the convolution differences are reduced by at least a factor R and by at least a factor approximately proportional to log2(R), respectively, as compared to conventional computation of a convolution value. This approach is used to estimate a time value for which the convolution attains a largest magnitude or value.

摘要翻译： 用于从过采样数字信号序列有效且快速地形成卷积值序列的方法和系统。 卷积值差异可以从一组数字信号值计算，该组数字信号值小于原始信号值集合乘以R的倍数，即过采样率。 与卷积值的常规计算相比，用于计算卷积差的加法器的数量和相关联的时间延迟分别减少至少一个因子R和至少一个与log 2（R）成比例的因子。 该方法用于估计卷积达到最大幅度或值的时间值。