专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20170288915A1 Systems and Methods for Mitigating Over-Equalization in a Short Channel 审中-公开
公开(公告)号：US20170288915A1
公开(公告)日：2017-10-05
申请号：US15088872
申请日：2016-04-01
申请人： Avago Technologies General IP (Singapore) Pte. Ltd
发明人： Nayak Ratnakar Aravind , Mohammad Mobin , Thomas Gibbons
IPC分类号： H04L25/03 , H04L27/00 , H04L7/00
CPC分类号： H04L25/03057 , H04L7/0087 , H04L25/03019 , H04L25/03343 , H04L27/0002 , H04L2025/0349 , H04L2025/03636 , H04L2025/03681 , H04L2025/03808
摘要： Embodiments are related to systems and methods for data processing, and more particularly to systems and methods for clock recovery in a data receiver.

2. 发明申请

US20170085400A1 Power Aware Receiver/Transmitter Adaptation for High Speed Serial Interfaces 审中-公开
公开(公告)号：US20170085400A1
公开(公告)日：2017-03-23
申请号：US15365337
申请日：2016-11-30
申请人： DELL PRODUCTS, LP
发明人： Stuart Allen Berke , Bhyrav M. Mutnury , Minchuan Wang
IPC分类号： H04L25/03 , H04L1/00 , H04L12/801 , H04L5/00
CPC分类号： H04L25/03057 , H04L1/0036 , H04L5/006 , H04L47/29 , H04L2025/03681
摘要： A receiver includes first and second equalization modules adapted to provide first and second compensations to a data signal, and a control module including a list that identifies the first equalization module as being less efficient than the second. The control module provides first and second compensation levels of the first and second compensations, such that the first and second compensations operate on the data signal to meet a bit error rate (BER) target, lowers the first compensation to reduce the power consumption of the receiver based on the list, and determines whether, in response to an increase in the level of the second compensation the BER target is met.

3. 发明授权

US09264082B2 System and algorithm for multipath mitigation 有权
标题翻译：多径缓解的系统和算法
公开(公告)号：US09264082B2
公开(公告)日：2016-02-16
申请号：US13914691
申请日：2013-06-11
申请人： BAE Systems Information And Electronic Systems Integration Inc.
发明人： Gary R. Lomp
IPC分类号： H03D1/06 , H03D11/04 , H03K5/01 , H03K6/04 , H04B1/10 , H04L7/00 , H04L25/08
CPC分类号： H04B1/1081 , H04L25/03057 , H04L2025/03484 , H04L2025/03605 , H04L2025/03681
摘要： A system and method for optimally combining multi-path signals is presented. A first signal is received that traveled a first path from a transmitter to a receiving location and a second signal is received that traveled a different second path from the transmitter to the same receiving location. The paths are different so that the first and second signals contain the same signal data but the first signal has a first distortion that is different than a second distortion in the second signal. According to an objective function, the method adaptively generates a first weight value and a second weight value. The first and second weight values are applied to the respective first and second signals to produce respective first and second weighted signals. The first and second weighted signals are linearly combined producing a combined signal with a combined signal degradation.
摘要翻译：提出了一种用于最佳组合多路径信号的系统和方法。接收到从发射机到接收位置行进第一路径的第一信号，并且接收到将不同的第二路径从发射机行进到同一接收位置的第二信号。路径是不同的，使得第一和第二信号包含相同的信号数据，但是第一信号具有与第二信号中的第二失真不同的第一失真。根据目标函数，该方法自适应地产生第一权重值和第二权重值。将第一和第二加权值应用于相应的第一和第二信号以产生相应的第一和第二加权信号。第一和第二加权信号被线性组合，产生具有组合信号劣化的组合信号。

4. 发明申请

US20150349989A1 Methods and Circuits for Adaptive Equalization 有权
标题翻译：自适应均衡的方法和电路
公开(公告)号：US20150349989A1
公开(公告)日：2015-12-03
申请号：US14818171
申请日：2015-08-04
申请人： Rambus Inc.
发明人： Ramin Farjad-Rad
IPC分类号： H04L25/03
CPC分类号： H04L25/03159 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/085 , H04L2025/03681
摘要： An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
摘要翻译：集成电路对表示为一系列符号的数据信号进行均衡。符号形成具有不同频率分量的数据模式。通过考虑这些模式，集成电路可以对特定于频率分量的子集的均衡设置进行实验，从而找到优化均衡的均衡控制设置。可以通过设置均衡器来最大化符号幅度来实现优化。

5. 发明申请

US20150341063A1 Updating A Filter Of An Equalizer 有权
标题翻译：更新均衡器的过滤器
公开(公告)号：US20150341063A1
公开(公告)日：2015-11-26
申请号：US14283661
申请日：2014-05-21
申请人： Silicon Laboratories Inc.
发明人： Junsong Li
IPC分类号： H04B1/10 , H04L25/03 , H04L27/14 , H04L27/00 , H04B1/14
CPC分类号： H04L25/03159 , H04B1/14 , H04L25/03019 , H04L27/0002 , H04L27/14 , H04L2025/03675 , H04L2025/03681 , H04L2025/03726
摘要： In one aspect, a tuner includes an analog front end to receive a radio frequency (RF) signal and to downconvert the RF signal to a second frequency signal, a digitizer to convert the second frequency signal to a digitized signal, a channel equalizer including a filter to filter the digitized signal, and a first controller to update the filter according to a frequency response of the filter.
摘要翻译：一方面，一种调谐器包括：模拟前端，用于接收射频（RF）信号，并将RF信号下变频为第二频率信号;数字转换器，用于将第二频率信号转换为数字化信号;信道均衡器，包括：过滤器以过滤数字化信号，以及第一控制器，以根据滤波器的频率响应来更新滤波器。

6. 发明申请

US20150280948A1 RECEIVER CIRCUIT 有权
标题翻译：接收电路
公开(公告)号：US20150280948A1
公开(公告)日：2015-10-01
申请号：US14662859
申请日：2015-03-19
申请人： FUJITSU LIMITED
发明人： Takanori Nakao
IPC分类号： H04L25/08 , H04L7/00 , H04L25/03
CPC分类号： H04L25/08 , H04L7/0058 , H04L25/03057 , H04L25/03885 , H04L27/01 , H04L2025/0349 , H04L2025/03681
摘要： An n-tap (n≧2 (in the case of FIG. 1, n=2)) DFE equalizes a received signal on the basis of a determination result of a signal which has been received, and outputs a determination result of the received signal after equalization. An adjustment section generates a plurality of filter patterns for observation of an inter-symbol interference amount by changing values of n bits included in the plurality of filter patterns. The adjustment section then compares each of the plurality of filter patterns generated with an output data string corresponding to the determination result of the received signal after equalization and adjusts tap coefficients set for n (in the case of FIG. 1, 2) taps included in the DFE on the basis of adjustment values corresponding to values of the n bits included in a filter pattern which matches the output data string.
摘要翻译： n抽头（n≥2（在图1的情况下，n = 2））DFE根据接收到的信号的确定结果对接收信号进行均衡，并输出接收到的信号的确定结果均衡后的信号。调整部通过改变包含在多个滤波器图案中的n位的值，生成用于观察符号间干扰量的多个滤波器模式。然后，调整部分将生成的多个滤波器模式中的每一个与均衡后的接收信号的确定结果相对应的输出数据串进行比较，并调整为n（在图1,2的情况下）设置的抽头系数基于与输出数据串匹配的过滤器图案中包括的n位的值的调整值的DFE。

7. 发明申请

US20150092829A1 METHOD AND APPARATUS FOR PASSIVE EQUALIZATION AND SLEW-RATE CONTROL 有权
标题翻译：无源均衡和频率控制的方法和装置
公开(公告)号：US20150092829A1
公开(公告)日：2015-04-02
申请号：US14072641
申请日：2013-11-05
申请人： Broadcom Corporation
发明人： Tamer ALI , Hassan Maarefi , Mahmoud Reza Ahmadi , Afshin Momtaz
IPC分类号： H04L25/03
CPC分类号： H04L25/03019 , H04L25/0288 , H04L25/03885 , H04L2025/03471 , H04L2025/03681
摘要： A device for passive equalization and slew-rate control of a signal includes a first branch that includes a first driver coupled in series with an equalization capacitor, and a second branch that includes a second driver coupled in series with a resistor. The second branch may be coupled in parallel to the first branch, and the first branch may be configurable to enable one of passive equalization or slew-rate control of the signal based on a mode control signal.
摘要翻译：用于信号的无源均衡和转换速率控制的装置包括第一分支，其包括与均衡电容器串联耦合的第一驱动器，以及包括与电阻器串联耦合的第二驱动器的第二分支。第二分支可以与第一分支并联耦合，并且第一分支可以被配置为基于模式控制信号使能信号的无源均衡或转换速率控制之一。

8. 发明授权

US08861580B2 Method and apparatus for determining one or more channel compensation parameters based on data eye monitoring 有权
标题翻译：用于基于数据眼睛监测来确定一个或多个信道补偿参数的方法和装置
公开(公告)号：US08861580B2
公开(公告)日：2014-10-14
申请号：US11434687
申请日：2006-05-16
申请人： Christopher J. Abel , Mohammad S. Mobin , Gregory W. Sheets , Lane A. Smith
发明人： Christopher J. Abel , Mohammad S. Mobin , Gregory W. Sheets , Lane A. Smith
IPC分类号： H03H7/30 , H04L25/03 , H04L1/20
CPC分类号： H04L25/03343 , H04L1/205 , H04L2025/03681 , H04L2025/03802
摘要： Methods and apparatus are provided for determining one or more channel compensation parameters based on data eye monitoring. According to one aspect of the invention, a method is provided for evaluating the quality of a data eye associated with a signal. The received signal is sampled for a plurality of different phases, for example, using at least two latches, and the samples are evaluated to identify when the signal crosses a predefined amplitude value, such as a zero crossing. It is determined whether the points of predefined amplitude crossing satisfy one or more predefined criteria. One or more parameters of one or more channel compensation techniques can optionally be adjusted based on a result of the determining step. One or more parameters of an adjacent transmitter can also be adjusted to reduce near end cross talk based on a result of the determining step.
摘要翻译：提供了用于基于数据眼睛监测来确定一个或多个信道补偿参数的方法和装置。根据本发明的一个方面，提供了一种用于评估与信号相关联的数据眼的质量的方法。对于多个不同的相位，例如使用至少两个锁存器对接收到的信号进行采样，并且评估采样以识别信号何时跨越预定义的幅度值，例如零交叉。确定预定义的幅度交叉点是否满足一个或多个预定标准。一个或多个信道补偿技术的一个或多个参数可以根据确定步骤的结果来任意地进行调整。也可以根据确定步骤的结果，调整相邻发射机的一个或多个参数以减少近端串扰。

9. 发明申请

US20140146868A1 DECISION FEEDBACK EQUALIZERS AND OPERATING METHODS THEREOF 有权
标题翻译：决策反馈均衡器及其操作方法
公开(公告)号：US20140146868A1
公开(公告)日：2014-05-29
申请号：US14172026
申请日：2014-02-04
申请人： TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
发明人： Yung-Chow PENG , Yu-Chun LIN
IPC分类号： H04L25/03
CPC分类号： H04L25/03885 , H04L25/03006 , H04L25/03057 , H04L2025/03535 , H04L2025/03681 , H04L2025/03707 , H04L2025/03745
摘要： A decision feedback equalizer (DFE) includes a sampler for receiving a first input signal and comparing an amplitude of the first input signal with a first predetermined voltage level and a second predetermined voltage level. The DFE includes a DFE logic circuit for receiving at least one first sign signal based on comparison results, and for selectively updating a tap coefficient based on the at least one first sign signal. The DFE logic circuit is configured to update the tap coefficient when the at least one first sign signal indicates the amplitude of the first input signal is not between the first predetermined voltage level and the second predetermined voltage level. The DFE logic circuit is configured to maintain the tap coefficient when the at least one first sign signal indicates the amplitude of the first input signal is between the first and the second predetermined voltage levels.
摘要翻译：判决反馈均衡器（DFE）包括用于接收第一输入信号并将第一输入信号的幅度与第一预定电压电平和第二预定电压电平进行比较的采样器。 DFE包括DFE逻辑电路，用于基于比较结果接收至少一个第一符号信号，并且用于基于至少一个第一符号信号选择性地更新抽头系数。 DFE逻辑电路被配置为当至少一个第一符号信号指示第一输入信号的幅度不在第一预定电压电平和第二预定电压电平之间时更新抽头系数。 DFE逻辑电路被配置为当至少一个第一符号信号指示第一输入信号的幅度在第一和第二预定电压电平之间时保持抽头系数。

10. 发明申请

US20140140285A1 COMMUNICATION DEVICE AND METHOD FOR PACKET-BASED OFDM COMMUNICATIONS WITH DIFFERING LENGTH CYCLIC PREFIXES 有权
标题翻译：具有不同长度循环前缀的基于分组的OFDM通信的通信设备和方法
公开(公告)号：US20140140285A1
公开(公告)日：2014-05-22
申请号：US14045025
申请日：2013-10-03
申请人： Kennan Laudel , Yongfang Guo
发明人： Kennan Laudel , Yongfang Guo
IPC分类号： H04L5/00 , H04L27/26 , H04W72/04
CPC分类号： H04L5/0048 , H04L25/03019 , H04L27/2607 , H04L2025/03414 , H04L2025/03681 , H04L2025/03777 , H04W72/0406
摘要： A network communication device is receive packet-based orthogonal frequency division multiplexed (OFDM) transmissions from one or more other devices in a network over a communication channel. The network communication device may determine a delay spread of the communication channel based on receipt of a probe signal from a transmitting device, configure a channel filter to effectively shorten the channel based on the delay spread, and instruct the transmitting device to shorten a length of a cyclic prefix for subsequent packet-based OFDM transmissions to be received from the transmitting device over the channel.
摘要翻译：网络通信设备通过通信信道从网络中的一个或多个其他设备接收基于分组的正交频分复用（OFDM）传输。网络通信设备可以基于从发送设备接收到探测信号来确定通信信道的延迟扩展，配置信道滤波器以根据延迟扩展来有效地缩短信道，并指示发送设备缩短用于通过信道从发射设备接收的用于后续基于分组的OFDM传输的循环前缀。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式