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21. 发明授权

US06452987B1 Fast start-up in discrete multi-tone (DMT) based communications system 失效
标题翻译：基于离散多音（DMT）通信系统的快速启动
公开(公告)号：US06452987B1
公开(公告)日：2002-09-17
申请号：US09199775
申请日：1998-11-25
申请人： Patrik Larsson , Jean-Jacques Werner , Jian Yang
发明人： Patrik Larsson , Jean-Jacques Werner , Jian Yang
IPC分类号： H04L2708
CPC分类号： H04L27/2647 , H04L25/03159 , H04L27/2614 , H04L2025/03414 , H04L2025/03522
摘要： In an Asymmetric Digital Subscriber Loop (ADSL) Discrete Multi-Tone (DMT) system, a DMT receiver uses, during start-up, an automatic gain control (AGC) element and a rotator element in place of a one-tap complex finite impulse response (FIR) filter.
摘要翻译：在非对称数字用户环路（ADSL）离散多音（DMT）系统中，DMT接收机在启动期间使用自动增益控制（AGC）元件和旋转元件来代替单抽头复数有限脉冲响应（FIR）过滤器。

22. 发明授权

US6069917A Blind training of a decision feedback equalizer 失效
标题翻译：盲目训练决策反馈均衡器
公开(公告)号：US6069917A
公开(公告)日：2000-05-30
申请号：US862909
申请日：1997-05-23
申请人： Jean-Jacques Werner , Jian Yang
发明人： Jean-Jacques Werner , Jian Yang
IPC分类号： H03H21/00 , H03H17/02 , H04B3/06 , H04B7/005 , H04L25/03 , H04L27/01 , H03H7/40
CPC分类号： H04L25/0307
摘要： A decision feedback equalizer (DFE) comprises a feed-forward filter and a feedback filter. Blind training of the DFE is performed using a statistical-based tap updating algorithm for the feed-forward filter, and a symbol-based type of tap updating algorithm for the feedback filter.
摘要翻译：判决反馈均衡器（DFE）包括前馈滤波器和反馈滤波器。使用用于前馈滤波器的基于统计的抽头更新算法以及用于反馈滤波器的基于符号的抽头更新算法来执行DFE的盲目训练。

23. 发明授权

US5835731A Technique for improving the blind convergence of a two-filter adaptive equalizer 失效
标题翻译：提高双滤波自适应均衡器盲收敛的技术
公开(公告)号：US5835731A
公开(公告)日：1998-11-10
申请号：US717582
申请日：1996-09-18
申请人： Jean-Jacques Werner , Jian Yang
发明人： Jean-Jacques Werner , Jian Yang
IPC分类号： H04B3/06 , H04L25/03 , H04L25/49 , H04L27/01
CPC分类号： H04L25/0305 , H04L25/4921 , H04L2025/0342 , H04L2025/03477 , H04L2025/03617
摘要： A blind equalization cost function called the "constrained Hilbert cost function" (CHCF) provides for reliable blind convergence of a two-filter equalizer structure. In particular, the CHCF cost function is designed in such a way that the two filters are constrained to be a Hilbert pair. Advantageously, this technique can be used with any blind equalization algorithms, such as RCA, CMA, and MMA.
摘要翻译：称为“约束希尔伯特成本函数”（CHCF）的盲均衡成本函数提供了双滤波均衡器结构的可靠盲收敛。特别地，CHCF成本函数被设计成使得两个滤波器被限制为希尔伯特对。有利的是，该技术可以与诸如RCA，CMA和MMA的任何盲均衡算法一起使用。

24. 发明授权

US5809074A Technique for improving the blind convergence of an adaptive equalizer using a transition algorithm 失效
标题翻译：使用转换算法改善自适应均衡器盲收敛的技术
公开(公告)号：US5809074A
公开(公告)日：1998-09-15
申请号：US744908
申请日：1996-11-08
申请人： Jean-Jacques Werner , Jian Yang
发明人： Jean-Jacques Werner , Jian Yang
IPC分类号： H03H21/00 , H03H17/02 , H04B3/06 , H04L25/03 , H04L25/49 , H04L27/01 , H04L27/38
CPC分类号： H04L25/0305 , H04L25/4921 , H04N5/211
摘要： A blind equalization technique uses both the "constant modulus algorithm" (CMA) and the "multimodulus algorithm" (MMA) during blind start-up. This approach provides the basis for a "transition algorithm." One example of a transition algorithm is the CMA-MMA transition algorithm in which an adaptive filter simply switches from CMA to MMA. Other examples are variations of the CMA-MMA transition algorithm and are illustrated by the "Constant Rotation CMA-MMA" transition algorithm and the "Dynamic Rotation CMA-MMA" transition algorithm.
摘要翻译：在盲启动期间，盲均衡技术同时使用“恒模算法”（CMA）和“多模算法”（MMA）。这种方法为“转换算法”提供了基础。转换算法的一个例子是CMA-MMA转换算法，其中自适应滤波器简单地从CMA切换到MMA。其他示例是CMA-MMA转换算法的变化，并且通过“恒定旋转CMA-MMA”转换算法和“动态旋转CMA-MMA”转换算法来说明。

25. 发明授权

US5052000A Technique for improving the operation of decision feedback equalizers in communications systems utilizing error correction 失效
标题翻译：利用纠错通信系统改善决策反馈均衡器运行的技术
公开(公告)号：US5052000A
公开(公告)日：1991-09-24
申请号：US363793
申请日：1989-06-09
申请人： Jin-Der Wang , Jean-Jacques Werner
发明人： Jin-Der Wang , Jean-Jacques Werner
IPC分类号： H04B3/06 , H04L1/00 , H04L25/03 , H04L25/06 , H04L27/34
CPC分类号： H04L1/0059 , H04L1/0047 , H04L1/0065 , H04L1/0066 , H04L25/03057 , H04L25/063 , H04L27/3438
摘要： The combined benefits of decision feedback equalization and error correction coding are realized in a communications system by the use of a plurality of coders and decoders respectively disposed in the transmitter and receiver. The plurality of encoders and decoders is used to interleave the data symbols so that each coder and decoder is operative upon every Mth symbol, where M is the number of coders or decoders. By a judicious choice of M, both the probability of noise impairing the recovery of successive symbols and the error propagation effects inherent in decision feedback equalizers are reduced.
摘要翻译：在通信系统中通过使用分别设置在发射机和接收机中的多个编码器和解码器来实现判决反馈均衡和纠错编码的组合优点。多个编码器和解码器用于交织数据符号，使得每个编码器和解码器在每第M个符号上操作，其中M是编码器或解码器的数量。通过M的明智选择，降低了连续符号恢复的噪声概率和决策反馈均衡器固有的误差传播效应。

26. 发明授权

US4384355A Control of coefficient drift for fractionally spaced equalizers 失效
$Control of coefficient drift for fractionally spaced equalizers$
标题翻译：分数间隔均衡器的系数漂移控制
公开(公告)号：US4384355A
公开(公告)日：1983-05-17
申请号：US213463
申请日：1980-12-05
申请人： Jean-Jacques Werner
发明人： Jean-Jacques Werner
IPC分类号： H04L27/01 , H04B1/10
CPC分类号： H04L27/01
摘要： Tap coefficient drift in a fractionally spaced equalizer (10) is minimized by adding signal energy (n(t)) to the received data signal (s.sub.r (t)) at frequencies where the sampled channel transfer function has substantially zero gain.
摘要翻译：在采样的信道传递函数基本上为零增益的频率处，通过在接收的数据信号（sr（t））中加上信号能量（n（t）），使分数间隔的均衡器（10）中的抽头系数漂移最小化。

27. 发明授权

US4015222A Modulated passband signal generator 失效
标题翻译：调制通带信号发生器
公开(公告)号：US4015222A
公开(公告)日：1977-03-29
申请号：US636563
申请日：1975-12-01
申请人： Jean-Jacques Werner
发明人： Jean-Jacques Werner
IPC分类号： H04L27/04 , H03C3/00
CPC分类号： H04L27/04
摘要： Disclosed is apparatus for generating carrier signals modulated by baseband symbol signals. The disclosed apparatus includes samplers for sampling input symbol signals, multipliers for multiplying the sampled signals by a precessing phase that is a function of the carrier signal's frequency, and modified filters for convolving the multiplied signals with a complex (real and imaginary) low pass impulse response and for selecting the real part of the convolved signals.
摘要翻译：公开了用于产生由基带符号信号调制的载波信号的装置。所公开的装置包括用于对输入符号信号进行采样的采样器，用于将采样信号乘以作为载波信号频率的函数的进动相位的乘法器和用于将相乘的信号与实数和虚数低通脉冲响应和选择卷积信号的实部。

28. 发明授权

US06493381B1 Blind equalization algorithm with the joint use of the constant R and the sliced symbols 有权
标题翻译：盲均衡算法联合使用常数R和切片符号
公开(公告)号：US06493381B1
公开(公告)日：2002-12-10
申请号：US09339793
申请日：1999-06-24
申请人： Jean-Jacques Werner , Jian Yang
发明人： Jean-Jacques Werner , Jian Yang
IPC分类号： H03H730
CPC分类号： H04L25/0305 , H04L2025/03477 , H04L2025/0363
摘要： A receiver, comprising an adaptive filter, performs blind equalization using a modified form of the constant modulus algorithm (CMA). This modified form of CMA is referred to as symbol CMA (SCMA). SCMA utilizes both the constant R and the sliced symbols, Ân, in performing blind equalization. The constant R is statistically created to the sliced symbols, Ân. The adaptive filter is a two-filter structure. The SCMA blind equalization technique reduces the rate of occurrence of a diagonal solution.
摘要翻译：包括自适应滤波器的接收机使用恒模算法（CMA）的修改形式执行盲均衡。该修改形式的CMA被称为符号CMA（SCMA）。 SCMA在执行盲均衡时利用常数R和切片符号Ân。常数R是统计上创建的切片符号，Ân。自适应滤波器是一个双滤波器结构。 SCMA盲均衡技术降低了对角线解的发生率。

29. 发明授权

US5793807A Multimodulus blind eqalization using piecewise linear contours 失效
标题翻译：使用分段线性轮廓的多模式盲均衡化
公开(公告)号：US5793807A
公开(公告)日：1998-08-11
申请号：US646404
申请日：1996-05-07
申请人： Jean-Jacques Werner , Jian Yang
发明人： Jean-Jacques Werner , Jian Yang
IPC分类号： H04B3/06 , H04L25/03 , H04L25/49 , H04L27/01
CPC分类号： H04L25/0305 , H04L25/4921 , H04N5/211
摘要： A blind equalization technique--the multimodulus algorithm (MMA)--adapts coefficients of an equalizer so as to minimize dispersion of the output samples of the equalizer around piecewise linear contours of a signal space. The MMA technique is illustrated in the context of both square and non-square signal point constellations.
摘要翻译：盲均衡技术 - 多模式算法（MMA） - 适应均衡器的系数，以使均衡器的输出样本在信号空间的分段线性轮廓周围的偏差最小化。在平方和非平方信号点星座的上下文中说明了MMA技术。

30. 发明授权

US5521949A Synchronization scheme for digital communications systems transporting data at a customer-controlled rate 失效
标题翻译：以客户控制的速率传输数据的数字通信系统的同步方案
公开(公告)号：US5521949A
公开(公告)日：1996-05-28
申请号：US891500
申请日：1992-05-29
申请人： Gang Huang , Jean-Jacques Werner
发明人： Gang Huang , Jean-Jacques Werner
IPC分类号： H04B3/23 , H04L27/34 , H04L23/00 , H04L5/12
CPC分类号： H04L27/3455
摘要： A synchronization scheme for bidirectional data applications where the customer supplies data for transmission at a rate which is customer controlled. In accordance with the present invention, in each transmission direction, the customer data is converted into data symbols in a predetermined constellation. In response to these data symbols, additional symbols are added. In the disclosed embodiment, the additional symbols added are symbols lying outside of the constellation and are not used to represent customer data. The additional symbols added raise the symbol rate in each transmission direction to one higher than that provided by the symbols representative of the customer data alone. This higher symbol rate in each transmission direction is preferably the same, or the higher symbol rate in one direction is related to the higher symbol rate in the other direction by a rational number. At each receiver, the additional symbols are removed and customer data is recovered from its representative data symbols.
摘要翻译：用于双向数据应用的同步方案，其中客户以用户控制的速率提供用于传输的数据。根据本发明，在每个传输方向上，客户数据被转换成预定星座中的数据符号。响应于这些数据符号，添加附加符号。在所公开的实施例中，添加的附加符号是位于星座之外的符号，并且不用于表示客户数据。添加的附加符号将每个传输方向的符号速率提高到比代表客户数据的符号提供的符号速率高一个。每个发送方向上的这种较高的符号率优选相同，或者一个方向上较高的符号率与另一个方向上的较高符号率相关联。在每个接收机处，除去附加符号并从其代表数据符号恢复客户数据。

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