公开(公告)号：US20080159415A1

公开(公告)日：2008-07-03

申请号：US11617644

申请日：2006-12-28

申请人： Mor Miller ,  Ariel Yagil ,  Itay Lusky ,  Liran Brecher ,  Amir Peleg ,  Naftali Sommer

发明人： Mor Miller ,  Ariel Yagil ,  Itay Lusky ,  Liran Brecher ,  Amir Peleg ,  Naftali Sommer

IPC分类号： H04B3/04

CPC分类号： H04L25/063 ,  H04L25/0266

摘要： A novel and useful baseline wander correction mechanism for use with transformer coupled baseband communication receivers. Parametric estimation of the transformer model is used estimate and cancel the baseline wander effect. A parametric model is used to model the baseline wander impairment created by the transmitter and receiver transformers as a high pass filter having an exponential decay parameter alpha. A correction signal for both the far end and echo signal paths are calculated and summed to generate a total correction signal. The total correction signal is partitioned into an analog correction signal that is applied to the analog portion of the communications receiver and into a digital correction signal that is similarly applied to the analog portion of the communications receiver.

摘要翻译： 一种用于变压器耦合基带通信接收机的新颖有用的基线漂移校正机制。 使用变压器模型的参数估计估计并消除基线漂移效应。 参数模型用于将由发射机和接收机变压器产生的基线漂移损伤建模为具有指数衰减参数α的高通滤波器。 对远端和回波信号路径的校正信号进行计算并求和以产生总校正信号。 总校正信号被分割成模拟校正信号，该信号被施加到通信接收机的模拟部分并且被类似地应用于通信接收机的模拟部分的数字校正信号。

公开(公告)号：US07738567B2

公开(公告)日：2010-06-15

申请号：US11617644

申请日：2006-12-28

申请人： Mor Miller ,  Ariel Yagil ,  Itay Lusky ,  Liran Brecher ,  Amir Peleg ,  Naftali Sommer

发明人： Mor Miller ,  Ariel Yagil ,  Itay Lusky ,  Liran Brecher ,  Amir Peleg ,  Naftali Sommer

IPC分类号： H04B3/04 ,  H04B3/20

CPC分类号： H04L25/063 ,  H04L25/0266

摘要： A novel and useful baseline wander correction mechanism for use with transformer coupled baseband communication receivers. Parametric estimation of the transformer model is used estimate and cancel the baseline wander effect. A parametric model is used to model the baseline wander impairment created by the transmitter and receiver transformers as a high pass filter having an exponential decay parameter alpha. A correction signal for both the far end and echo signal paths are calculated and summed to generate a total correction signal. The total correction signal is partitioned into an analog correction signal that is applied to the analog portion of the communications receiver and into a digital correction signal that is similarly applied to the analog portion of the communications receiver.

摘要翻译： 一种用于变压器耦合基带通信接收机的新颖有用的基线漂移校正机制。 使用变压器模型的参数估计估计并消除基线漂移效应。 参数模型用于将由发射机和接收机变压器产生的基线漂移损伤建模为具有指数衰减参数α的高通滤波器。 对远端和回波信号路径的校正信号进行计算并求和以产生总校正信号。 总校正信号被分割成模拟校正信号，该信号被施加到通信接收机的模拟部分并且被类似地应用于通信接收机的模拟部分的数字校正信号。

公开(公告)号：US20080159414A1

公开(公告)日：2008-07-03

申请号：US11617590

申请日：2006-12-28

申请人： Liran Brecher ,  Itay Lusky ,  Ariel Yagil

发明人： Liran Brecher ,  Itay Lusky ,  Ariel Yagil

IPC分类号： H04B3/04

CPC分类号： H04L25/0266 ,  H04L25/063

摘要： A novel and useful mechanism for the mitigation of baseline wander from wired networks such as Ethernet. A high pass filter is inserted before the analog to digital converter having a pole within the range of 5-12 MHz. This eliminates the need for any other baseline wander removal schemes, whether analog or digital and provides sufficient performance in terms of noise budget.

摘要翻译： 一种用于减轻有线网络（如以太网）的基线漂移的新颖有用的机制。 在具有5-12MHz范围内的极点的模数转换器之前插入高通滤波器。 这消除了任何其他基线漂移移除方案的需要，无论是模拟还是数字，并且在噪声预算方面提供足够的性能。

公开(公告)号：US07408493B2

公开(公告)日：2008-08-05

申请号：US11134194

申请日：2005-05-20

申请人： Itay Lusky ,  Ofir Shalvi ,  Liran Brecher

发明人： Itay Lusky ,  Ofir Shalvi ,  Liran Brecher

IPC分类号： H03M1/12

CPC分类号： H03M1/185

摘要： Systems and methods for automatic gain control are disclosed. In one aspect of the invention, a system is provided that comprises a programmable gain amplifier that amplifies an input signal based on a gain signal. The system further comprises an analog-to-digital converter that generates at least one digital output signal from the amplified input signal, and an automatic gain control component that determines an adjustment of the gain signal based on a comparison of the at least one digital output signal to a predetermined maximum amplitude reference level.

摘要翻译： 公开了用于自动增益控制的系统和方法。 在本发明的一个方面，提供了一种系统，其包括可编程增益放大器，其基于增益信号放大输入信号。 该系统还包括一个模拟 - 数字转换器，其从放大的输入信号产生至少一个数字输出信号，以及一个自动增益控制部件，其基于至少一个数字输出的比较来确定增益信号的调整 信号到预定的最大幅度参考电平。

公开(公告)号：US20060261992A1

公开(公告)日：2006-11-23

申请号：US11134194

申请日：2005-05-20

申请人： Itay Lusky ,  Ofir Shalvi ,  Liran Brecher

发明人： Itay Lusky ,  Ofir Shalvi ,  Liran Brecher

IPC分类号： H03M1/12

CPC分类号： H03M1/185

摘要： Systems and methods for automatic gain control are disclosed. In one aspect of the invention, a system is provided that comprises a programmable gain amplifier that amplifies an input signal based on a gain signal. The system further comprises an analog-to-digital converter that generates at least one digital output signal from the amplified input signal, and an automatic gain control component that determines an adjustment of the gain signal based on a comparison of the at least one digital output signal to a predetermined maximum amplitude reference level.

摘要翻译： 公开了用于自动增益控制的系统和方法。 在本发明的一个方面，提供了一种系统，其包括可编程增益放大器，其基于增益信号放大输入信号。 该系统还包括一个模拟 - 数字转换器，其从放大的输入信号产生至少一个数字输出信号，以及一个自动增益控制部件，其基于至少一个数字输出的比较来确定增益信号的调整 信号到预定的最大幅度参考电平。

公开(公告)号：US06904088B1

公开(公告)日：2005-06-07

申请号：US09711025

申请日：2000-11-09

申请人： Liran Brecher ,  Yigal Bitran ,  Melamed Oded ,  Naftali Sommer

发明人： Liran Brecher ,  Yigal Bitran ,  Melamed Oded ,  Naftali Sommer

IPC分类号： H04L25/03 ,  H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/03057 ,  H04L2025/0349 ,  H04L2025/03617 ,  H04L2025/03643 ,  H04L2025/03656

摘要： The detection of symbols in digital burst transmissions is improved by an equalizer (30) that initializes the values of only a subset of its filter coefficients (C, D), and thereafter begins to decode the symbols using an iterative, decision directed algorithm that determines all of its filter coefficients. This can advantageously provide an acceptable trade-off between computational complexity and equalizer performance.

摘要翻译： 通过初始化其滤波器系数（C，D）的子集的值的均衡器（30）来改进数字突发传输中符号的检测，然后开始使用确定 它的所有滤波系数。 这可以有利地提供计算复杂性和均衡器性能之间的可接受的折衷。

公开(公告)号：US07082170B2

公开(公告)日：2006-07-25

申请号：US10144408

申请日：2002-05-10

申请人： Lior Ophir ,  Liran Brecher

发明人： Lior Ophir ,  Liran Brecher

IPC分类号： H04L25/03

CPC分类号： H04L25/4975 ,  H04L25/03828 ,  H04L27/3411

摘要： In frequency channel communications, constraints on transmit power characteristics can be complied with by implementing constellation shaping (15, 71) in the transmitter. In transmitters which use transmit filtering (91) to comply with constraints on transmit power characteristics, the transmitter can also implement, upstream of the transmit filter, precoding (92) designed for a desired cooperation with the transmit filter.

摘要翻译： 在频道通信中，通过在发射机中实现星座形状整形（15,71）可以实现对发射功率特性的约束。 在使用发射滤波（91）符合发射功率特性约束的发射机中，发射机还可以在发射滤波器的上游实现为发射滤波器所期望的协作而设计的预编码（92）。

公开(公告)号：US20070206600A1

公开(公告)日：2007-09-06

申请号：US11681784

申请日：2007-03-04

申请人： Amos Klimker ,  Liran Brecher ,  Etai Zaltsman

发明人： Amos Klimker ,  Liran Brecher ,  Etai Zaltsman

IPC分类号： H04L12/54 ,  H04L12/56

CPC分类号： H04L12/2801 ,  H04L45/00 ,  H04L45/245 ,  H04L47/10 ,  H04L47/125 ,  H04L47/34

摘要： A novel apparatus and method of packet re-sequencing applicable to systems wherein packets are assigned sequence numbers and transmitted over multiple channels with the requirement they be re-ordered at the receiving side. The mechanism is particularly suitable for use in cable systems adapted to implement the DOCSIS 3.0 specification which permits the bonding of a plurality of downstream channels into a single virtual high data rate pipe. In operation, received packets are stored in a memory whereby a pointer to the memory storage location is written into a context table diagram in accordance with the sequence number extracted from the packet. Packets are released in sequence order regardless of the order in which they were received.

摘要翻译： 一种分组重新排序的新颖的装置和方法，适用于其中分组被分配序列号并且在多个信道上发送并且在接收侧被重新排序的要求的系统。 该机构特别适用于适用于实施DOCSIS 3.0规范的电缆系统，该规范允许将多个下游信道绑定到单个虚拟高数据速率管道中。 在操作中，接收的分组被存储在存储器中，由此根据从分组提取的序列号，将指向存储器存储位置的指针写入上下文表图。 数据包按照顺序排列，无论其接收顺序如何。

公开(公告)号：US07573884B2

公开(公告)日：2009-08-11

申请号：US11681784

申请日：2007-03-04

申请人： Amos Klimker ,  Liran Brecher ,  Etai Zaltsman

发明人： Amos Klimker ,  Liran Brecher ,  Etai Zaltsman

IPC分类号： H04L12/54 ,  H04L12/56

CPC分类号： H04L12/2801 ,  H04L45/00 ,  H04L45/245 ,  H04L47/10 ,  H04L47/125 ,  H04L47/34

摘要： A novel apparatus and method of packet re-sequencing applicable to systems wherein packets are assigned sequence numbers and transmitted over multiple channels with the requirement they be re-ordered at the receiving side. The mechanism is particularly suitable for use in cable systems adapted to implement the DOCSIS 3.0 specification which permits the bonding of a plurality of downstream channels into a single virtual high data rate pipe. In operation, received packets are stored in a memory whereby a pointer to the memory storage location is written into a context table diagram in accordance with the sequence number extracted from the packet. Packets are released in sequence order regardless of the order in which they were received.

摘要翻译： 一种分组重新排序的新颖的装置和方法，适用于其中分组被分配序列号并且在多个信道上发送并且在接收侧被重新排序的要求的系统。 该机构特别适用于适用于实施DOCSIS 3.0规范的电缆系统，该规范允许将多个下游信道绑定到单个虚拟高数据速率管道中。 在操作中，接收的分组被存储在存储器中，由此根据从分组提取的序列号，将指向存储器存储位置的指针写入上下文表图。 数据包按照顺序排列，无论其接收顺序如何。

公开(公告)号：US07746965B2

公开(公告)日：2010-06-29

申请号：US11772461

申请日：2007-07-02

申请人： Alon Elhanati ,  Liran Brecher ,  Naor Goldman ,  Noam Tal ,  Shaul Klein

发明人： Alon Elhanati ,  Liran Brecher ,  Naor Goldman ,  Noam Tal ,  Shaul Klein

IPC分类号： H04L27/08 ,  H04B1/16

CPC分类号： H03G3/3052 ,  H03G3/3089

摘要： One embodiment of the present invention includes a method for controlling a gain of a wideband signal. The method comprises adding a virtual channel to the wideband signal, the wideband signal comprising at least one channel. The method also comprises monitoring an output power associated with the wideband signal that includes the at least one channel and the virtual channel. The method further comprises setting a gain factor to achieve a predetermined output power of the wideband signal and amplifying the wideband signal based on the gain factor.

摘要翻译： 本发明的一个实施例包括一种用于控制宽带信号的增益的方法。 所述方法包括向所述宽带信号添加虚拟信道，所述宽带信号包括至少一个信道。 该方法还包括监视与包括至少一个信道和虚拟信道的宽带信号相关联的输出功率。 该方法还包括设置增益因子以实现宽带信号的预定输出功率，并且基于增益因子放大宽带信号。