专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US09088470B1 Signal processing for independently produced signals 有权
标题翻译：用于独立产生信号的信号处理
公开(公告)号：US09088470B1
公开(公告)日：2015-07-21
申请号：US14148308
申请日：2014-01-06
申请人： Marvell International Ltd.
发明人： Jungwon Lee , Jihwan P. Choi
IPC分类号： H04L27/34 , H04L1/00 , H04L27/38
CPC分类号： H04L27/3405 , H04L1/0048 , H04L1/0054 , H04L27/38
摘要： Systems and techniques relating to wireless communications are described. A described technique includes receiving, at a wireless communication device, a signal that is based on produced signals, the produced signals being produced via different respective constellations; detecting a first signal from the received signal based on a combined constellation of the respective constellations; removing a signal contribution of the first detected signal from the received signal to produce a modified received signal; and detecting a second signal from the modified received signal. Removing the signal contribution can include using a constituent constellation of the respective constellations, the constituent constellation being associated with the first detected signal.
摘要翻译：描述与无线通信相关的系统和技术。所描述的技术包括在无线通信设备处接收基于产生的信号的信号，所产生的信号通过不同的相应星座产生; 基于相应星座的组合星座来检测来自接收信号的第一信号; 从所述接收信号中去除所述第一检测信号的信号贡献，以产生经修改的接收信号; 以及从修改的接收信号检测第二信号。消除信号贡献可以包括使用相应星座的组成星座，组成星座与第一检测信号相关联。

52. 发明授权

US09071295B1 Method and apparatus for receiving signals in a MIMO system with multiple channel encoders 有权
标题翻译：用于在具有多个信道编码器的MIMO系统中接收信号的方法和装置
公开(公告)号：US09071295B1
公开(公告)日：2015-06-30
申请号：US14258326
申请日：2014-04-22
申请人： MARVELL INTERNATIONAL LTD.
发明人： Jungwon Lee , Hui-Ling Lou
IPC分类号： H03D1/00 , H04L27/06 , H04B7/04
CPC分类号： H04B7/0413 , H04L1/005 , H04L1/0055 , H04L1/0631 , H04L25/03305 , H04L25/03318 , H04L25/03891
摘要： In a method for decoding plurality of information streams corresponding to a plurality of layers, where the plurality of information streams have been transmitted via a multiple input multiple output (MIMO) communication channel, a plurality of received signals are processed to decode information corresponding to a first layer. A plurality of modified received signals are generated using the decoded information corresponding to the first layer and the plurality of received signals. Bit metric values are generated for a second layer using MIMO maximum likelihood (ML) demodulation and using the plurality of modified received signals and channel and modulation information for interfering signals. Information corresponding to the second layer is decoded using the generated bit metric values.
摘要翻译：在多重信息流已经通过多输入多输出（MIMO）通信信道被发送的情况下解码与多个层对应的多个信息流的方法中，处理多个接收到的信号以解码对应于第一层使用与第一层和多个接收信号相对应的解码信息来生成多个修改的接收信号。使用MIMO最大似然（ML）解调并使用多个修改的接收信号和用于干扰信号的信道和调制信息为第二层生成比特量度值。使用生成的比特度量值对与第二层对应的信息进行解码。

53. 发明授权

US09065709B1 Digital radio data system receiver methods and apparatus 有权
标题翻译：数字无线电数据系统接收机的方法和装置
公开(公告)号：US09065709B1
公开(公告)日：2015-06-23
申请号：US14076129
申请日：2013-11-08
申请人： Marvell International Ltd.
发明人： Jungwon Lee , Dimitrios-Alexandros Toumpakaris , Hui-Ling Lou , Chris Cheng-Chieh Lee
IPC分类号： H04B1/16 , H04L27/233
CPC分类号： H04L27/2334 , H04B1/1653 , H04H20/34 , H04H40/18 , H04H2201/13
摘要： Methods and apparatus are provided for receiving a first signal and generating an output signal indicative of radio data system (“RDS”) information. A receiver circuit of the invention can include mixer circuitry, lowpass filter circuitry, downsampler circuitry, and decoder circuitry. Advantageously, the receiver circuit can operate entirely within the digital domain, promoting interoperability with digital frequency modulation (“FM”) demodulator circuitry.
摘要翻译：提供了用于接收第一信号并产生指示无线电数据系统（“RDS”）信息的输出信号的方法和装置。本发明的接收机电路可以包括混频器电路，低通滤波器电路，下采样器电路和解码器电路。有利地，接收器电路可以完全在数字域内操作，促进与数字频率调制（“FM”）解调器电路的互操作性。

54. 发明授权

US09001640B1 Transmit diversity technique based on channel randomization for orthogonal frequency division multiplexing systems 有权
标题翻译：基于正交频分复用系统信道随机化的发射分集技术
公开(公告)号：US09001640B1
公开(公告)日：2015-04-07
申请号：US14281368
申请日：2014-05-19
申请人： Marvell International LTD.
发明人： Jungwon Lee , Hui-Ling Lou
IPC分类号： H04J11/00 , H04L1/06 , H04B7/04
CPC分类号： H04J11/0063 , H04B7/0413 , H04B7/0456 , H04B7/0615 , H04B7/0885 , H04L1/0606 , H04L27/2626 , H04L27/2647
摘要： A physical layer device including a mapping module to map a plurality of data streams to a plurality of transmit antennas. Each transmit antenna is associated with a respective radio frequency channel. A first gain module communicates with a first transmit antenna, receives a first plurality of signals generated based on the plurality of data streams, and applies a first complex gain corresponding to the first transmit antenna to each of the first plurality of signals. A second gain module communicates with a second transmit antenna, receives a second plurality of signals generated based on the plurality of data streams, and applies a second complex gain corresponding to the second transmit antenna to each of the second plurality of signals. The second plurality of signals is different than the first plurality of signals. The second complex gain is different than the first complex gain.
摘要翻译：一种物理层设备，包括将多个数据流映射到多个发射天线的映射模块。每个发射天线与相应的射频信道相关联。第一增益模块与第一发射天线进行通信，接收基于多个数据流生成的第一多个信号，并将对应于第一发射天线的第一复数增益应用于第一多个信号中的每一个。第二增益模块与第二发射天线进行通信，接收基于多个数据流产生的第二多个信号，并将对应于第二发射天线的第二复数增益应用于第二多个信号中的每一个。第二多个信号与第一多个信号不同。第二个复数增益与第一个复数增益不同。

55. 发明授权

US08781036B1 System with gain based preamble sequence estimation 有权
标题翻译：具有基于增益的前导序列估计的系统
公开(公告)号：US08781036B1
公开(公告)日：2014-07-15
申请号：US13686478
申请日：2012-11-27
申请人： Marvell International Ltd.
发明人： Jungwon Lee , Hui-Ling Lou
IPC分类号： H04L27/06
CPC分类号： H04L25/022 , H04L25/0224 , H04L27/261
摘要： A system including an input module, a first gain module, a second gain module, and a preamble estimation module. The input module is configured to receive an input signal from a station. The input signal includes (i) a first preamble sequence, and (ii) subcarriers. The first gain module is configured to, based on the input signal, generate first channel gain values. Each of the first channel gain values is for a respective one of the subcarriers. A second gain module is configured to, based on the first channel gain values, generate second channel gain values. A preamble estimation module is configured to estimate the first preamble sequence based on (i) the first channel gain values, and (ii) the second channel gain values.
摘要翻译：一种包括输入模块，第一增益模块，第二增益模块和前导码估计模块的系统。输入模块被配置为从站接收输入信号。输入信号包括（i）第一前序序列，和（ii）子载波。第一增益模块被配置为基于输入信号产生第一通道增益值。第一通道增益值中的每一个用于副载波中的相应一个。第二增益模块被配置为基于第一通道增益值产生第二通道增益值。前导码估计模块被配置为基于（i）第一信道增益值和（ii）第二信道增益值来估计第一前同步码序列。

56. 发明授权

US08638887B1 Multi-stream demodulation scheme using multiple detectors 有权
标题翻译：使用多个检测器的多流解调方案
公开(公告)号：US08638887B1
公开(公告)日：2014-01-28
申请号：US13735781
申请日：2013-01-07
申请人： Marvell International Ltd.
发明人： Jiwoong Choi , Jungwon Lee , Hui-Ling Lou
IPC分类号： H04L27/06 , H04L27/28
CPC分类号： H04L1/0631 , H04B7/0413 , H04L1/0054 , H04L25/067 , H04L27/2647 , H04L27/34
摘要： In a method of demodulating a signal transmitted via a multiple input multiple output (MIMO) communication channel, a data symbol vector is received, the data symbol vector including a plurality of data symbols that are received via a plurality of antennas. The received data symbol vector corresponds to a transmitted data symbol vector including a plurality of transmitted data symbols. A plurality of candidate vectors are generated for the transmitted data symbol vector, the plurality of candidate vectors being less than all possible vectors for the transmitted data symbol vector. One candidate vector is selected from the plurality of candidate vectors such that the one candidate vector minimizes a distance value corresponding to a Euclidean distance between the received data symbol vector and a channel estimate matrix multiplied with the candidate vector.
摘要翻译：在解调通过多输入多输出（MIMO）通信信道发送的信号的方法中，接收数据符号向量，该数据符号向量包括经由多个天线接收的多个数据符号。接收到的数据符号向量对应于包括多个发送数据符号的发送数据符号向量。为发送的数据符号向量生成多个候选向量，多个候选向量小于所发送的数据符号向量的所有可能向量。从多个候选向量中选择一个候选向量，使得一个候选向量使与所接收的数据符号向量和与候选向量相乘的信道估计矩阵之间的欧几里德距离相对应的距离值最小化。

57. 发明授权

US08594574B1 Digital radio data system receiver methods and apparatus 有权
公开(公告)号：US08594574B1
公开(公告)日：2013-11-26
申请号：US13681200
申请日：2012-11-19
申请人： Marvell International Ltd.
发明人： Jungwon Lee , Dimitrios-Alexandros Toumpakaris , Hui-Ling Lou , Chris Cheng-Chieh Lee
IPC分类号： H04B1/16
CPC分类号： H04L27/2334 , H04B1/1653 , H04H20/34 , H04H40/18 , H04H2201/13
摘要： Methods and apparatus are provided for receiving a first signal and generating an output signal indicative of radio data system (“RDS”) information. A receiver circuit of the invention can include mixer circuitry, lowpass filter circuitry, downsampler circuitry, and decoder circuitry. Advantageously, the receiver circuit can operate entirely within the digital domain, promoting interoperability with digital frequency modulation (“FM”) demodulator circuitry.

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