专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US07643512B2 Cascaded links with adaptive coding and modulation 有权
标题翻译：具有自适应编码和调制的级联链路
公开(公告)号：US07643512B2
公开(公告)日：2010-01-05
申请号：US11479050
申请日：2006-06-29
申请人： Yoram Gorsetman , Ran Sofer , Jonathan Friedmann
发明人： Yoram Gorsetman , Ran Sofer , Jonathan Friedmann
IPC分类号： H04J3/22
CPC分类号： H04L1/0009 , H04L1/0003 , H04L2001/0097
摘要： A communication system includes a first communication unit, which is arranged to communicate with a remote communication system over a first communication link having a first, variable data rate. A second communication unit is arranged to exchange data with the remote communication system by communicating with the first communication unit over a second communication link having a second data rate. The first and second communication units are arranged to modify the second data rate responsively to variations in the first data rate, so as to match the second data rate to the first data rate.
摘要翻译：通信系统包括第一通信单元，其被布置成通过具有第一可变数据速率的第一通信链路与远程通信系统进行通信。第二通信单元被布置成通过具有第二数据速率的第二通信链路与第一通信单元通信来与远程通信系统交换数据。第一和第二通信单元被布置成响应于第一数据速率的变化来修改第二数据速率，以便将第二数据速率与第一数据速率相匹配。

12. 发明授权

US07613260B2 Modem control using cross-polarization interference estimation 有权
标题翻译：使用交叉极化干扰估计的调制解调器控制
公开(公告)号：US07613260B2
公开(公告)日：2009-11-03
申请号：US11285414
申请日：2005-11-21
申请人： Amir Eliaz , Avi Turgeman , Ahikam Aharony , Jonathan Friedmann
发明人： Amir Eliaz , Avi Turgeman , Ahikam Aharony , Jonathan Friedmann
IPC分类号： H04B1/10
CPC分类号： H04L25/03057 , H04B7/10
摘要： A receiver includes an input circuit, which is coupled to at least one antenna so as to receive, process and digitize first and second signals, thus generating first and second streams of input samples. An interference cancellation circuit in the receiver includes first and second adaptive filters, which are respectively coupled to filter the first and second streams of input samples using respective first and second coefficients to generate respective first and second filter outputs. A phase rotator is adapted to apply a variable phase shift compensating for a phase deviation between the first and second signals, the phase rotator having at least one configuration parameter. A control module is operative to estimate signal characteristics of the interference cancellation circuit and to set the at least one configuration parameter of the phase rotator responsively to the estimated signal characteristics.
摘要翻译：接收机包括输入电路，其耦合到至少一个天线，以便接收，处理和数字化第一和第二信号，从而产生第一和第二输入样本流。接收机中的干扰消除电路包括第一和第二自适应滤波器，其分别耦合以使用相应的第一和第二系数对输入采样的第一和第二流进行滤波，以产生相应的第一和第二滤波器输出。相位旋转器适于对第一和第二信号之间的相位偏移应用可变相移补偿，所述相位旋转器具有至少一个配置参数。控制模块可操作以估计干扰消除电路的信号特性并且响应于估计的信号特性来设置相位旋转器的至少一个配置参数。

13. 发明授权

US07580469B2 Communication link control using iterative code metrics 有权
标题翻译：使用迭代代码度量的通信链路控制
公开(公告)号：US07580469B2
公开(公告)日：2009-08-25
申请号：US11483078
申请日：2006-07-06
申请人： Ronen Yonesi , Jonathan Friedmann , Ahikam Aharony
发明人： Ronen Yonesi , Jonathan Friedmann , Ahikam Aharony
IPC分类号： H04L5/12
CPC分类号： H04L1/005 , H03M13/1102 , H03M13/2975 , H03M13/3753 , H03M13/6337 , H04L1/0003 , H04L1/0009 , H04L1/0052 , H04L1/0057 , H04L1/203
摘要： A method for communication includes receiving over a communication link data that has been encoded using a forward error correcting (FEC) code. The encoded data is decoded using an iterative decoding process, which produces metrics. A condition of the communication link is assessed responsively to the metrics.
摘要翻译：一种用于通信的方法包括：通过通信链路接收已经使用前向纠错（FEC）码进行编码的数据。使用迭代解码过程对编码数据进行解码，该过程产生度量。响应于度量来评估通信链路的状况。

14. 发明申请

US20090186585A1 Multi-mode wireless communication link 有权
标题翻译：多模无线通信链路
公开(公告)号：US20090186585A1
公开(公告)日：2009-07-23
申请号：US12009728
申请日：2008-01-22
申请人： Ahikam Ahrony , Raqfi Ravid , Jonathan Friedmann
发明人： Ahikam Ahrony , Raqfi Ravid , Jonathan Friedmann
IPC分类号： H03C7/02 , H04B1/02 , H04B7/02
CPC分类号： H04B7/0871 , H04B7/0617 , H04B7/0619 , H04B7/0669 , H04B7/0689 , H04B7/0693 , H04B7/0697 , H04B7/0877 , H04B7/10
摘要： A communication system includes first and second transmitters, which are coupled to transmit respective first and second Radio Frequency (RF) signals carrying first and second data over a wireless communication channel. The transmitters are coupled to select an operational mode from a group of operational modes and to operate in the selected operational mode. The group of the operational modes includes at least two of a protection mode, wherein the second transmitter serves as backup to the first transmitter, a spatial multiplexing mode, in which the first data is different from the second data and the first and second transmitters transmit simultaneously, and a beam-forming mode, in which the first data is identical to the second data, the second RF signal includes a phase-shifted replica of the first RF signal, and the first and second transmitters transmit simultaneously.
摘要翻译：通信系统包括第一和第二发射机，其被耦合以通过无线通信信道发送携带第一和第二数据的相应的第一和第二射频（RF）信号。发射机被耦合以从一组操作模式中选择操作模式并且以所选择的操作模式操作。该组操作模式包括保护模式中的至少两个，其中第二发射机用作第一发射机的备份，空间复用模式，其中第一数据不同于第二数据，第一和第二发射机发送同时和波束形成模式，其中第一数据与第二数据相同，第二RF信号包括第一RF信号的相移副本，并且第一和第二发射机同时发射。

15. 发明授权

US08532237B2 Correction of alternating I/Q imbalance and frequency offset impairments 有权
标题翻译：交替I / Q不平衡和频率偏移损伤的校正
公开(公告)号：US08532237B2
公开(公告)日：2013-09-10
申请号：US12702351
申请日：2010-02-09
申请人： Ronen Shaked , Jonathan Friedmann
发明人： Ronen Shaked , Jonathan Friedmann
IPC分类号： H04B1/10
CPC分类号： H04L27/3863 , H04L27/0014
摘要： A method for communication includes receiving a signal, which carries data bits and is distorted by multiple impairments including one or more frequency offsets and one or more In-phase/Quadrature (I/Q) imbalances. A corrected signal is produced by applying to the received signal a sequence of corrections to compensate for the impairments. The sequence includes a first and a third correction of one correction type and a second correction of another correction type intervening between the first and third corrections in the sequence, the correction types consisting of frequency offset corrections and I/Q imbalance corrections. The data bits are extracted from the corrected signal.
摘要翻译：一种用于通信的方法包括接收携带数据位并由包括一个或多个频率偏移和一个或多个同相/正交（I / Q）不平衡的多个损伤而失真的信号。通过对接收到的信号应用校正信号来补偿校正后的信号，以补偿损伤。该序列包括一个校正类型的第一和第三校正以及介于序列中的第一和第三校正之间的另一校正类型的第二校正，校正类型由频偏校正和I / Q不平衡校正组成。从校正信号中提取数据位。

16. 发明授权

US08364179B2 Feedback-based management of variable-rate communication links 有权
标题翻译：基于反馈的可变速率通信链路管理
公开(公告)号：US08364179B2
公开(公告)日：2013-01-29
申请号：US12750730
申请日：2010-03-31
申请人： Ehud Ashkenazi , Jonathan Friedmann
发明人： Ehud Ashkenazi , Jonathan Friedmann
IPC分类号： H04Q7/20
CPC分类号： H04L1/0026 , H04L1/0003 , H04L1/0009 , H04L1/0017
摘要： A method for communication includes transmitting data from a transmitter to a receiver using Adaptive Coding and Modulation (ACM). The data rate is set by selecting, based on feedback, an ACM profile defining a Forward Error Correction code and a modulation scheme. Upon detecting that the feedback is unusable, an operation of the transmitter is changed independently of the feedback.In another method, data is exchanged over two opposite directions of a bidirectional link that uses ACM by communicating using two ACM profiles. A joint constraint is defined on the two directions. The two ACM profiles are set based on first and second measured reception quality metrics of the two link directions, to meet the joint constraint. In yet another method, a subset of the ACM profiles is temporarily disabled, and the data is transmitted using only the ACM profiles that are not disabled.
摘要翻译：一种用于通信的方法包括使用自适应编码和调制（ACM）将数据从发射机发射到接收机。通过基于反馈选择定义前向纠错码和调制方案的ACM简档来设置数据速率。在检测到反馈不可用时，发射器的操作独立于反馈而改变。在另一种方法中，通过使用两个ACM简档通信来使用ACM的双向链路的两个相反方向交换数据。在两个方向上定义了联合约束。基于两个链路方向的第一和第二测量的接收质量度量来设置两个ACM简档，以满足联合约束。在另一种方法中，ACM简档的子集被临时禁用，并且仅使用未被禁用的ACM简档来发送数据。

17. 发明申请

US20120220246A1 CARRIER RECOVERY IN RE-MODULATION COMMUNICATION SYSTEMS 有权
标题翻译：重新调整通信系统中的载波恢复
公开(公告)号：US20120220246A1
公开(公告)日：2012-08-30
申请号：US13035972
申请日：2011-02-27
申请人： Igal Yehuda Kushnir , Jonathan Friedmann , Ronen Shaked , Tzahi Oren
发明人： Igal Yehuda Kushnir , Jonathan Friedmann , Ronen Shaked , Tzahi Oren
IPC分类号： H04B1/04
CPC分类号： H04B1/04 , H03D3/004 , H04L27/0014 , H04L2027/002
摘要： A communication apparatus includes transmission circuitry and a frequency conversion unit. The transmission circuitry is configured to down-convert an input Intermediate Frequency (IF) signal using a transmit (TX) Local Oscillator (LO) signal so as to produce a TX baseband signal, to up-convert the TX baseband signal to produce an output Radio Frequency (RF) signal, and to send the output RF signal to an antenna. The frequency correction unit is configured to estimate a frequency of the TX baseband signal or of the input IF signal, and to adjust the TX LO signal based on the estimated frequency so as to cause the transmission circuitry to down-convert the input IF signal to a predefined target frequency.
摘要翻译：通信装置包括传输电路和频率转换单元。发送电路被配置为使用发送（TX）本地振荡器（LO）信号对输入中频（IF）信号进行下变频，以产生TX基带信号，以升频转换TX基带信号以产生输出射频（RF）信号，并将输出RF信号发送到天线。频率校正单元被配置为估计TX基带信号或输入IF信号的频率，并且基于估计的频率来调整TX LO信号，以便使得发送电路将输入IF信号下变频预定义的目标频率。

18. 发明申请

US20120195392A1 PREDISTORTION IN SPLIT-MOUNT WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：分布式无线通信系统中的预测
公开(公告)号：US20120195392A1
公开(公告)日：2012-08-02
申请号：US13019313
申请日：2011-02-02
申请人： Igal (Yehuda) Kushnir , Jonathan Friedmann , Ronen Shaked , Rafi Ravid
发明人： Igal (Yehuda) Kushnir , Jonathan Friedmann , Ronen Shaked , Rafi Ravid
IPC分类号： H04L25/49
CPC分类号： H04L25/03343
摘要： A transmitter includes an Outdoor Unit (ODU) including circuitry, and an Indoor Unit (IDU) that is configured to predistort a signal based on a non-linearity model of the circuitry having one or more model parameters, and to forward the predistorted signal to the ODU. The ODU is configured to accept the predistorted signal from the IDU, to amplify and transmit the predistorted signal using the circuitry, to estimate the non linearity model parameters, and to send the estimated model parameters to the IDU so as to cause the IDU to apply the model parameters in predistoring the signal.
摘要翻译：发射机包括包括电路的室外单元（ODU）和被配置为基于具有一个或多个模型参数的电路的非线性模型来预失真信号的室内单元（IDU），并将预失真信号转发到 ODU。 ODU被配置为接受来自IDU的预失真信号，使用电路放大和发送预失真信号，以估计非线性模型参数，并将估计的模型参数发送到IDU，以使IDU应用模型参数预信号。

19. 发明申请

US20100185917A1 Feedback-based management of variable-rate communication links 有权
标题翻译：基于反馈的可变速率通信链路管理
公开(公告)号：US20100185917A1
公开(公告)日：2010-07-22
申请号：US12750730
申请日：2010-03-31
申请人： Ehud Ashkenazi , Jonathan Friedmann
发明人： Ehud Ashkenazi , Jonathan Friedmann
IPC分类号： H03M13/05 , H04L12/26 , G06F11/10
CPC分类号： H04L1/0026 , H04L1/0003 , H04L1/0009 , H04L1/0017
摘要： A method for communication includes transmitting data from a transmitter to a receiver using Adaptive Coding and Modulation (ACM). The data rate is set by selecting, based on feedback, an ACM profile defining a Forward Error Correction code and a modulation scheme. Upon detecting that the feedback is unusable, an operation of the transmitter is changed independently of the feedback.In another method, data is exchanged over two opposite directions of a bidirectional link that uses ACM by communicating using two ACM profiles. A joint constraint is defined on the two directions. The two ACM profiles are set based on first and second measured reception quality metrics of the two link directions, to meet the joint constraint. In yet another method, a subset of the ACM profiles is temporarily disabled, and the data is transmitted using only the ACM profiles that are not disabled.
摘要翻译：一种用于通信的方法包括使用自适应编码和调制（ACM）将数据从发射机发射到接收机。通过基于反馈选择定义前向纠错码和调制方案的ACM简档来设置数据速率。在检测到反馈不可用时，发射器的操作独立于反馈而改变。在另一种方法中，通过使用两个ACM简档通信来使用ACM的双向链路的两个相反方向交换数据。在两个方向上定义了联合约束。基于两个链路方向的第一和第二测量的接收质量度量来设置两个ACM简档，以满足联合约束。在另一种方法中，ACM简档的子集被临时禁用，并且仅使用未被禁用的ACM简档来发送数据。

20. 发明申请

US20080008257A1 Communication link control using iterative code metrics 有权
标题翻译：使用迭代代码度量的通信链路控制
公开(公告)号：US20080008257A1
公开(公告)日：2008-01-10
申请号：US11483078
申请日：2006-07-06
申请人： Ronen Yonesi , Jonathan Friedmann , Ahikam Aharony
发明人： Ronen Yonesi , Jonathan Friedmann , Ahikam Aharony
IPC分类号： H04L23/02
CPC分类号： H04L1/005 , H03M13/1102 , H03M13/2975 , H03M13/3753 , H03M13/6337 , H04L1/0003 , H04L1/0009 , H04L1/0052 , H04L1/0057 , H04L1/203
摘要： A method for communication includes receiving over a communication link data that has been encoded using a forward error correcting (FEC) code. The encoded data is decoded using an iterative decoding process, which produces metrics. A condition of the communication link is assessed responsively to the metrics.
摘要翻译：一种用于通信的方法包括：通过通信链路接收已经使用前向纠错（FEC）码进行编码的数据。使用迭代解码过程对编码数据进行解码，该过程产生度量。响应于度量来评估通信链路的状况。

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