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

US20100309955A1 MITIGATING NOISE CREATED BY SPREAD SPECTRUM CLOCKS 失效
标题翻译：缓解频谱产生的噪音
公开(公告)号：US20100309955A1
公开(公告)日：2010-12-09
申请号：US11963021
申请日：2007-12-21
申请人： Marc Jalfon , Rafi Ravid
发明人： Marc Jalfon , Rafi Ravid
IPC分类号： H04B1/707
CPC分类号： H04B1/7097 , H04B15/04 , H04B2201/70715
摘要： A platform to mitigate noise caused by spread spectrum clock signals. The platform may comprise a noise mitigation block, which may include a first set of analog-to-digital converters, a second analog-to-digital, and a noise canceller. The first set of analog-to-digital converters may generate clock samples by digitizing the plurality of spread spectrum clock signals, which are provided as inputs to the noise mitigation block. The second analog-to-digital converter may generate data samples by digitizing the data signal. The noise canceller coupled to the first set of analog-to-digital converters and the second analog-to-digital converter may identify an interference portion in the data signal using the clock samples and the data samples and remove the interference portion from the data signal.
摘要翻译：一个减轻由扩频时钟信号引起的噪声的平台。平台可以包括噪声抑制块，其可以包括第一组模数转换器，第二模数转换器和噪声消除器。第一组模拟 - 数字转换器可以通过数字化多个扩频时钟信号来产生时钟采样，这些时钟信号作为输入提供给噪声抑制块。第二模数转换器可以通过数字化数据信号来生成数据采样。耦合到第一组模数转换器和第二模数转换器的噪声消除器可以使用时钟采样和数据样本来识别数据信号中的干扰部分，并从数据信号中去除干扰部分。

2. 发明申请

US20120230444A1 BEAMFORMING IN MIMO COMMUNICATION SYSTEMS 有权
标题翻译： MIMO通信系统中的波束形成
公开(公告)号：US20120230444A1
公开(公告)日：2012-09-13
申请号：US13475370
申请日：2012-05-18
申请人： Rafi RAVID , Zohar MONTEKYO , Ahikam AHARONY
发明人： Rafi RAVID , Zohar MONTEKYO , Ahikam AHARONY
IPC分类号： H04B7/02
CPC分类号： H04B7/063 , H04B7/0617 , H04B7/0857
摘要： A communication terminal includes first and second transmitters, which are coupled to produce respective first and second Radio Frequency (RF) signals that are phase-shifted with respect to one another by a beamforming phase offset, and to transmit the RF signals toward a remote communication terminal. The terminal includes a reception subsystem including first and second receivers and a phase correction unit. The first and second receivers are respectively coupled to receive third and fourth RF signals from the remote communication terminal. The phase correction unit is coupled to produce, responsively to the third and fourth RF signals, a phase correction for correcting an error component in the beamforming phase offset.
摘要翻译：通信终端包括第一和第二发射机，其被耦合以产生通过波束形成相位偏移相对于彼此相移的相应的第一和第二射频（RF）信号，并且将RF信号发送到远程通信终奌站。终端包括包括第一和第二接收机的接收子系统和相位校正单元。第一和第二接收机分别被耦合以从远程通信终端接收第三和第四RF信号。相位校正单元被耦合以响应于第三和第四RF信号产生用于校正波束形成相位偏移中的误差分量的相位校正。

3. 发明申请

US20090185650A1 BEAMFORMING IN MIMO COMMUNICATION SYSTEMS 有权
标题翻译： MIMO通信系统中的波束形成
公开(公告)号：US20090185650A1
公开(公告)日：2009-07-23
申请号：US12355823
申请日：2009-01-19
申请人： Rafi Ravid , Zohar Montekyo , Ahikam Aharony
发明人： Rafi Ravid , Zohar Montekyo , Ahikam Aharony
IPC分类号： H03D3/24 , H04B1/00
CPC分类号： H04B7/063 , H04B7/0617 , H04B7/0857
摘要： A communication terminal includes first and second transmitters, which are coupled to produce respective first and second Radio Frequency (RF) signals that are phase-shifted with respect to one another by a beamforming phase offset, and to transmit the RF signals toward a remote communication terminal. The terminal includes a reception subsystem including first and second receivers and a phase correction unit. The first and second receivers are respectively coupled to receive third and fourth RF signals from the remote communication terminal. The phase correction unit is coupled to produce, responsively to the third and fourth RF signals, a phase correction for correcting an error component in the beamforming phase offset.
摘要翻译：通信终端包括第一和第二发射机，其被耦合以产生通过波束形成相位偏移相对于彼此相移的相应的第一和第二射频（RF）信号，并且将RF信号发送到远程通信终奌站。终端包括包括第一和第二接收机的接收子系统和相位校正单元。第一和第二接收机分别被耦合以从远程通信终端接收第三和第四RF信号。相位校正单元被耦合以响应于第三和第四RF信号产生用于校正波束形成相位偏移中的误差分量的相位校正。

4. 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。

5. 发明授权

US08204143B2 Beamforming in MIMO communication systems 有权
标题翻译： MIMO通信系统中的波束成形
公开(公告)号：US08204143B2
公开(公告)日：2012-06-19
申请号：US12355823
申请日：2009-01-19
申请人： Rafi Ravid , Zohar Montekyo , Ahikam Aharony
发明人： Rafi Ravid , Zohar Montekyo , Ahikam Aharony
IPC分类号： H04B7/02
CPC分类号： H04B7/063 , H04B7/0617 , H04B7/0857
摘要： A communication terminal includes first and second transmitters, which are coupled to produce respective first and second Radio Frequency (RF) signals that are phase-shifted with respect to one another by a beamforming phase offset, and to transmit the RF signals toward a remote communication terminal. The terminal includes a reception subsystem including first and second receivers and a phase correction unit. The first and second receivers are respectively coupled to receive third and fourth RF signals from the remote communication terminal. The phase correction unit is coupled to produce, responsively to the third and fourth RF signals, a phase correction for correcting an error component in the beamforming phase offset.
摘要翻译：通信终端包括第一和第二发射机，其被耦合以产生通过波束形成相位偏移相对于彼此相移的相应的第一和第二射频（RF）信号，并且将RF信号发送到远程通信终奌站。终端包括包括第一和第二接收机的接收子系统和相位校正单元。第一和第二接收机分别被耦合以从远程通信终端接收第三和第四RF信号。相位校正单元被耦合以响应于第三和第四RF信号产生用于校正波束形成相位偏移中的误差分量的相位校正。

6. 发明授权

US08526528B2 Beamforming in MIMO communication systems 有权
标题翻译： MIMO通信系统中的波束成形
公开(公告)号：US08526528B2
公开(公告)日：2013-09-03
申请号：US13475370
申请日：2012-05-18
申请人： Rafi Ravid , Zohar Montekyo , Ahikam Aharony
发明人： Rafi Ravid , Zohar Montekyo , Ahikam Aharony
IPC分类号： H04B7/02
CPC分类号： H04B7/063 , H04B7/0617 , H04B7/0857
摘要： A communication terminal includes first and second transmitters, which are coupled to produce respective first and second Radio Frequency (RF) signals that are phase-shifted with respect to one another by a beamforming phase offset, and to transmit the RF signals toward a remote communication terminal. The terminal includes a reception subsystem including first and second receivers and a phase correction unit. The first and second receivers are respectively coupled to receive third and fourth RF signals from the remote communication terminal. The phase correction unit is coupled to produce, responsively to the third and fourth RF signals, a phase correction for correcting an error component in the beamforming phase offset.
摘要翻译：通信终端包括第一和第二发射机，其被耦合以产生通过波束形成相位偏移相对于彼此相移的相应的第一和第二射频（RF）信号，并且将RF信号发送到远程通信终奌站。终端包括包括第一和第二接收机的接收子系统和相位校正单元。第一和第二接收机分别被耦合以从远程通信终端接收第三和第四RF信号。相位校正单元被耦合以响应于第三和第四RF信号产生用于校正波束形成相位偏移中的误差分量的相位校正。

7. 发明授权

US08054921B2 Mitigating noise created by spread spectrum clocks 失效
标题翻译：降低扩频时钟产生的噪音
公开(公告)号：US08054921B2
公开(公告)日：2011-11-08
申请号：US11963021
申请日：2007-12-21
申请人： Marc Jalfon , Rafi Ravid
发明人： Marc Jalfon , Rafi Ravid
IPC分类号： H03D1/04
CPC分类号： H04B1/7097 , H04B15/04 , H04B2201/70715
摘要： A platform to mitigate noise caused by spread spectrum clock signals. The platform may comprise a noise mitigation block, which may include a first set of analog-to-digital converters, a second analog-to-digital, and a noise canceller. The first set of analog-to-digital converters may generate clock samples by digitizing the plurality of spread spectrum clock signals, which are provided as inputs to the noise mitigation block. The second analog-to-digital converter may generate data samples by digitizing the data signal. The noise canceller coupled to the first set of analog-to-digital converters and the second analog-to-digital converter may identify an interference portion in the data signal using the clock samples and the data samples and remove the interference portion from the data signal.
摘要翻译：一个减轻由扩频时钟信号引起的噪声的平台。平台可以包括噪声抑制块，其可以包括第一组模数转换器，第二模数转换器和噪声消除器。第一组模拟 - 数字转换器可以通过数字化多个扩频时钟信号来产生时钟采样，这些时钟信号作为输入提供给噪声抑制块。第二模数转换器可以通过数字化数据信号来生成数据采样。耦合到第一组模数转换器和第二模数转换器的噪声消除器可以使用时钟采样和数据样本来识别数据信号中的干扰部分，并从数据信号中去除干扰部分。

8. 发明授权

US07990298B1 Reduction of digital-to-analog converter distortion using constellation rotation 有权
标题翻译：使用星座旋转减少数模转换器失真
公开(公告)号：US07990298B1
公开(公告)日：2011-08-02
申请号：US12726378
申请日：2010-03-18
申请人： Jonathan Friedmann , Rafi Ravid
发明人： Jonathan Friedmann , Rafi Ravid
IPC分类号： H03M1/06
CPC分类号： H03M1/0614 , H03M1/66 , H04L27/368
摘要： A method for signal conversion includes generating a complex digital signal, which includes digital In-phase (I) and Quadrature (Q) components, for conversion into respective analog I and Q components by first and second Digital-to-Analog Converters (DACs). A distortion generated by the DACS in the analog I and Q components is reduced by applying a phase rotation to the complex digital signal. After applying the phase rotation, the digital I and Q components of the complex digital signal are converted into the respective analog I and Q components using the first and second DACs.
摘要翻译：一种用于信号转换的方法包括生成包括数字同相（I）和正交（Q）分量的复数数字信号，用于由第一和第二数模转换器（DAC）转换成相应的模拟I和Q分量，。 DACS在模拟I和Q分量中产生的失真通过对复数数字信号施加相位旋转来减小。在施加相位旋转之后，使用第一和第二DAC将复数数字信号的数字I和Q分量转换成相应的模拟I和Q分量。

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