专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US07684774B1 Systems and methods for recovery of a sub-carrier signal from a stereophonic multiplexed signal 失效
标题翻译：用于从立体声复用信号中恢复副载波信号的系统和方法
公开(公告)号：US07684774B1
公开(公告)日：2010-03-23
申请号：US11582735
申请日：2006-10-17
申请人： Chris Cheng-Chieh Lee , Hui-Ling Lou , Jungwon Lee
发明人： Chris Cheng-Chieh Lee , Hui-Ling Lou , Jungwon Lee
IPC分类号： H04B1/06
CPC分类号： H04B1/1653 , H04H40/45
摘要： Disclosed herein are systems and methods for recovering a sub-carrier signal from a multiplexed signal having an embedded pilot tone signal. The recovery system includes circuitry for recovering a pilot signal from the received multiplexed signal, for generating a frequency-doubled signal from the recovered pilot signal, and for phase-shifting the frequency-doubled signal by a pre-determined phase difference from the embedded pilot tone signal. Another recovery system includes circuitry for recovering a pilot signal from the received multiplexed signal, for phase-shifting the pilot signal by a pre-determined phase difference from the embedded pilot tone signal, and for generating a frequency-doubled signal from the phase-shifted signal.
摘要翻译：这里公开了用于从具有嵌入导频音信号的复用信号中恢复副载波信号的系统和方法。恢复系统包括用于从所接收的多路复用信号中恢复导频信号的电路，用于从恢复的导频信号产生加倍频的信号，并且将加倍频信号与嵌入式导频相移预定的相位差音调信号。另一个恢复系统包括用于从接收到的多路复用信号中恢复导频信号的电路，用于将导频信号与嵌入的导频音信号相位相移预定的相位差，并用于从相移信号。

72. 发明申请

US20100005357A1 Symbol Vector Mapping for Chase-Combining HARQ 有权
标题翻译：追踪组合HARQ的符号向量映射
公开(公告)号：US20100005357A1
公开(公告)日：2010-01-07
申请号：US12488240
申请日：2009-06-19
申请人： Yakun Sun , Jungwon Lee
发明人： Yakun Sun , Jungwon Lee
IPC分类号： H04L1/18 , H04L27/28 , G06F11/14
CPC分类号： H04L1/1812 , H04B7/0413 , H04B7/0669 , H04L1/0001 , H04L1/0618 , H04L1/0625 , H04L1/1816 , H04L1/1822 , H04L1/1825 , H04L1/189 , H04L1/1893 , H04L1/1896 , H04L27/2601 , H04L27/2602 , H04L27/2608
摘要： A method of transmitting data from a transmitter to a receiver includes transmitting a first data unit to the receiver via a plurality of antennas, the first data unit including a payload that has a plurality of symbols; determining whether the receiver has successfully received the first data unit; and, in response to determining that the receiver has not successfully received the first data unit, transmitting a second data unit to the receiver, the second data unit including the payload, such that transmitting die second data unit includes transmitting the plurality of symbols via at least one of different antennas and different subcarriers with respect to the first data unit.
摘要翻译：从发射机向接收机发送数据的方法包括经由多个天线向接收机发送第一数据单元，第一数据单元包括具有多个符号的有效载荷; 确定接收机是否已成功接收到第一数据单元; 并且响应于确定所述接收机尚未成功接收到所述第一数据单元，向所述接收机发送第二数据单元，所述第二数据单元包括所述有效载荷，使得所述发送模具第二数据单元包括经由所述多个符号经由至少一个不同的天线和相对于第一数据单元的不同子载波。

73. 发明授权

US07636297B1 Transmit diversity technique based on channel randomization for OFDM systems 有权
标题翻译：基于OFDM系统的信道随机化的发射分集技术
公开(公告)号：US07636297B1
公开(公告)日：2009-12-22
申请号：US11204069
申请日：2005-08-15
申请人： Jungwon Lee , Hui-Ling Lou
发明人： Jungwon Lee , Hui-Ling Lou
IPC分类号： H04J11/00
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 (PHY) module includes NT radio frequency (RF) channels and a mapping module. The NT RF channels each include N subcarriers. The mapping module includes Ns inputs receiving corresponding ones of NS data streams. The mapping module further includes NT outputs communicating with corresponding ones of the NT RF channels. Each of the NT outputs includes N outputs. The mapping module further includes a mapping matrix that maps the NS data streams to the NT outputs. NT, NS, and N are integers greater than or equal to 2. The NT RF channels include NT gain modules that apply NT different complex gains to the NT outputs, respectively. One of the NT different complex gains is applied to each of the N outputs of a corresponding one of the NT outputs. The NT different complex gains correspond to NT transmit antennas of the NT RF channels, respectively.
摘要翻译：物理层（PHY）模块包括NT射频（RF）信道和映射模块。 NT个RF信道各自包括N个子载波。映射模块包括接收对应的NS数据流的Ns个输入。映射模块还包括与相应的NT RF信道通信的NT个输出。每个NT输出包括N个输出。映射模块还包括将NS数据流映射到NT个输出的映射矩阵。 NT，NS和N是大于或等于2的整数.NT RF信道包括分别向NT个输出应用NT个不同复合增益的NT增益模块。 NT个不同的复数增益之一被应用于NT个输出中对应的一个的N个输出中的每一个。 NT个不同的复数增益分别对应于NT个RF信道的NT个发射天线。

74. 发明申请

US20090282311A1 SYMBOL VECTOR-LEVEL COMBINING RECEIVER FOR INCREMENTAL REDUNDANCY HARQ WITH MIMO 有权
标题翻译：带有MIMO的增量冗余HARQ的符号矢量级组合接收机
公开(公告)号：US20090282311A1
公开(公告)日：2009-11-12
申请号：US12463025
申请日：2009-05-08
申请人： Jungwon Lee , Yakun Sun , Hui-Ling Lou
发明人： Jungwon Lee , Yakun Sun , Hui-Ling Lou
IPC分类号： H04L1/18 , H04L27/06
CPC分类号： H04B7/024 , H04B7/0413 , H04L1/0042 , H04L1/0068 , H04L1/0643 , H04L1/1819
摘要： Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. A set of information bits corresponding to a message may be encoded and interleaved to produce the mother code. Each bit position of the mother code may be mapped to an output symbol, and each output symbol may be mapped to an antenna for transmission. One or more transmissions of symbols contained in the output symbols may be performed, where each transmission may include puncturing the mother code by selecting one or more symbols from the of output symbols, and transmitting each symbol in the one or more symbols on an antenna corresponding to that symbol. The mother code may be decoded, in part, by determining combinable bits contained within a set of received symbols, and computing one or more log-likelihood ratio values corresponding to each symbol in the set of received symbols.
摘要翻译：提供了用于以增量冗余混合自动重复请求协议发送和接收母码的技术。对应于消息的一组信息位可以被编码和交织以产生母码。母码的每个比特位置可以被映射到输出符号，并且每个输出符号可以被映射到天线以进行传输。可以执行输出符号中包含的符号的一个或多个传输，其中每个传输可以包括通过从输出符号中选择一个或多个符号来对母码进行穿刺，并且在天线上的一个或多个符号中发送每个符号到那个符号。可以部分地通过确定包含在一组接收到的符号内的可组合比特，以及计算与所接收的符号集合中的每个符号相对应的一个或多个对数似然比值来对母码进行解码。

75. 发明申请

US20080063103A1 DECODING METHOD FOR ALAMOUTI SCHEME WITH HARQ AND/OR REPETITION CODING 有权
标题翻译：使用HARQ和/或重复编码的ALAMOUTI方案的解码方法
公开(公告)号：US20080063103A1
公开(公告)日：2008-03-13
申请号：US11854219
申请日：2007-09-12
申请人： Jungwon Lee , Woong Jun Jang
发明人： Jungwon Lee , Woong Jun Jang
IPC分类号： H04L23/02
CPC分类号： H04L1/0668 , H04L1/0631 , H04L1/1819
摘要： Systems and methods are provided for decoding a signal vector in a transmission scheme that uses transmit diversity as well as HARQ, repetition coding, or any other protocol that allows a receiver to obtain multiple reception of common transmit information. Information obtained in more than one symbol period are treated as a single received vector, and each of the received signal vectors may be processed to reduce or remove phase rotations caused by the channel. The received signal vectors may be combined by addition and decoded using a maximum-likelihood decoder. In some embodiments, the transmitter and receiver are configured to communicate using the transmit diversity scheme and a spatial multiplexing scheme. The scheme may be chosen based on the quality of the channel through which communication takes place.
摘要翻译：提供的系统和方法用于在使用发射分集以及HARQ，重复编码或允许接收机获得多个公共发送信息的接收的任何其他协议的传输方案中对信号向量进行解码。在多于一个符号周期中获得的信息被视为单个接收向量，并且可以处理每个接收信号向量以减少或消除由该信道引起的相位旋转。接收的信号矢量可以通过加法组合，并使用最大似然解码器解码。在一些实施例中，发射机和接收机被配置为使用发射分集方案和空间复用方案进行通信。该方案可以基于通信进行通道的质量来选择。

76. 发明授权

US06785595B2 Electronic control system for vehicle accessory devices 失效
标题翻译：汽车配件设备电子控制系统
公开(公告)号：US06785595B2
公开(公告)日：2004-08-31
申请号：US10075515
申请日：2002-02-13
申请人： Yukio Kominami , Jungwon Lee , Jason D. Stafne , Hirohide Suda , Matthew J. Lehmer
发明人： Yukio Kominami , Jungwon Lee , Jason D. Stafne , Hirohide Suda , Matthew J. Lehmer
IPC分类号： G06F700
CPC分类号： B60N2/0248 , B60Q3/18 , B60Q3/80 , H04L1/1803
摘要： A system and method for managing user preference settings in a vehicle includes an electronic control unit having a microcontroller and memory. The electronic control unit controls vehicle accessory devices. A data controller is in communication with the microcontroller of the electronic control unit for receiving the user preference data to control the accessory devices. The keyless receiver is in communication with the microcontroller of the electronic control unit for receiving a control signal from a key fob. A PDA including a processor, memory, and transceiver in electrical communication can be used to transmit the user preference data to the data controller. The preference data is transmitted to the memory of the electronic control unit, which executes an algorithm to control the accessory devices according to the user preference data.
摘要翻译：用于管理车辆中的用户偏好设置的系统和方法包括具有微控制器和存储器的电子控制单元。电子控制单元控制车辆附件。数据控制器与电子控制单元的微控制器通信，用于接收用户偏好数据以控制附件设备。无钥匙接收器与电子控制单元的微控制器通信，用于接收来自密钥卡的控制信号。可以使用包括电气通信中的处理器，存储器和收发器的PDA来将用户偏好数据发送到数据控制器。偏好数据被发送到电子控制单元的存储器，该电子控制单元执行用于根据用户偏好数据控制附件设备的算法。

77. 发明授权

US09184877B1 Method and apparatus for decoding independently encoded signals 有权
标题翻译：对独立编码信号进行解码的方法和装置
公开(公告)号：US09184877B1
公开(公告)日：2015-11-10
申请号：US12940778
申请日：2010-11-05
申请人： Jungwon Lee , Jihwan P. Choi
发明人： Jungwon Lee , Jihwan P. Choi
IPC分类号： H04L27/06 , H04L1/00 , H03M13/41 , H03M13/00
CPC分类号： H04L27/38 , H03M13/3905 , H03M13/3961 , H03M13/41 , H03M13/4107 , H03M13/6325 , H03M13/6502 , H03M13/6525 , H04J11/0036 , H04L1/0048 , H04L1/0054 , H04L27/3488
摘要： A received signal that includes a plurality of user signals is demodulated. The plurality of user signals includes at least a first user signal and a second user signal. The first user signal corresponds to first user data that has been modulated independently of second user data corresponding to the second user signal, and the first user signal is encoded with a first finite state machine encoder independently of the other user signals. The first finite state machine encoder has a number of states S1. The second user signal is encoded with a second finite state machine encoder independently of the other user signals, and the second finite state machine encoder has a number of states S2. Demodulating the received signal includes calculating distances between (i) each transmit symbol in the received signal and (ii) expected symbol values, wherein each expected symbol value corresponds to user data for multiple users including the first user and the second user. The first user data in the received signal is decoded based on the calculated distances utilizing a finite state machine decoder having S1 states.
摘要翻译：解调包括多个用户信号的接收信号。多个用户信号至少包括第一用户信号和第二用户信号。第一用户信号对应于已经独立于与第二用户信号相对应的第二用户数据被调制的第一用户数据，并且第一用户信号与第一有限状态机编码器编码，独立于其他用户信号。第一有限状态机编码器具有多个状态S1。第二用户信号用独立于其他用户信号的第二有限状态机编码器编码，而第二有限状态机编码器具有多个状态S2。解调接收到的信号包括计算（i）接收信号中的每个发送符号与（ii）预期符号值之间的距离，其中每个预期符号值对应于包括第一用户和第二用户的多个用户的用户数据。使用具有S1状态的有限状态机解码器，基于计算出的距离来解码接收信号中的第一用户数据。

78. 发明授权

US08804691B1 Phase based preamble detection 有权
标题翻译：基于相位的前导码检测
公开(公告)号：US08804691B1
公开(公告)日：2014-08-12
申请号：US12540758
申请日：2009-08-13
申请人： Qing Zhao , Chuxiang Li , Leilei Song , Jungwon Lee
发明人： Qing Zhao , Chuxiang Li , Leilei Song , Jungwon Lee
IPC分类号： H04L27/26 , H04W56/00 , H04W88/02
CPC分类号： H04L27/2659 , H04L27/2613 , H04L27/2672 , H04L27/2675 , H04L27/2684 , H04W56/00 , H04W88/02
摘要： Devices, methods, and other embodiments associated with phase based preamble detection are described. In one embodiment, an apparatus includes a wireless transceiver, an evaluation logic, and a configuration logic. The wireless transceiver receives a wireless signal from a wireless device. The wireless signal includes a preamble sequence. The evaluation logic evaluates the preamble sequence by comparing phases of the preamble sequence to phases of predefined preamble sequences to identify a matching preamble sequence. The comparison is done without using amplitude information. The configuration logic configures the wireless transceiver to synchronize wireless communications with the wireless device based, at least in part, on the matching preamble sequence.
摘要翻译：描述了与基于相位的前导码检测相关联的设备，方法和其他实施例。在一个实施例中，一种装置包括无线收发器，评估逻辑和配置逻辑。无线收发器从无线设备接收无线信号。无线信号包括前序序列。评估逻辑通过将前导序列的相位与预定义的前导码序列的相位进行比较来评估前导序列，以识别匹配的前导码序列。比较不使用振幅信息。配置逻辑配置无线收发器以至少部分地基于匹配的前导码序列来与无线设备同步无线通信。

79. 发明授权

US08781020B1 Transmit beamforming utilizing channel estimation matrix decomposition feedback in a wireless MIMO communication system 有权
标题翻译：使用无线MIMO通信系统中的信道估计矩阵分解反馈来发射波束成形
公开(公告)号：US08781020B1
公开(公告)日：2014-07-15
申请号：US13555919
申请日：2012-07-23
申请人： Jungwon Lee , Rohit U. Nabar , Hui-Ling Lou
发明人： Jungwon Lee , Rohit U. Nabar , Hui-Ling Lou
IPC分类号： H04B7/02
CPC分类号： H04B7/0665
摘要： A channel estimation matrix H describing a forward channel in which a signal travels from a first communication device to a second communication device is determined at the second communication device. QR decomposition on the channel estimation matrix H is performed, at the second communication device, to derive a unitary matrix Q and an upper triangular matrix R, such that H=QR. Only a portion of the upper triangular matrix R is transmitted, from the second communication device to the first communication device, so that the first communication device can use the portion of the upper triangular matrix R to precode signals to be transmitted by the first communication device.
摘要翻译：在第二通信设备处确定描述信号从第一通信设备行进到第二通信设备的前向信道的信道估计矩阵H。在第二通信设备处执行在信道估计矩阵H上的QR分解以导出酉矩阵Q和上三角矩阵R，使得H = QR。只有上层三角矩阵R的一部分从第二通信装置传送到第一通信装置，使得第一通信装置可以使用上三角矩阵R的部分来对第一通信装置发送的信号进行预编码。

80. 发明授权

US08750418B2 Symbol vector-level combining transmitter for incremental redundancy HARQ with MIMO 有权
标题翻译：符号矢量级组合发射机，用于增量冗余HARQ与MIMO
公开(公告)号：US08750418B2
公开(公告)日：2014-06-10
申请号：US12463017
申请日：2009-05-08
申请人： Jungwon Lee , Yakun Sun , Hui-Ling Lou
发明人： Jungwon Lee , Yakun Sun , Hui-Ling Lou
IPC分类号： H04L27/00
CPC分类号： H04B7/024 , H04B7/0413 , H04L1/0042 , H04L1/0068 , H04L1/0643 , H04L1/1819
摘要： Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. A set of information bits corresponding to a message may be encoded and interleaved to produce the mother code. Each bit position of the mother code may be mapped to an output symbol, and each output symbol may be mapped to an antenna for transmission. One or more transmissions of symbols contained in the output symbols may be performed, where each transmission may include puncturing the mother code by selecting one or more symbols from the of output symbols, and transmitting each symbol in the one or more symbols on an antenna corresponding to that symbol. The mother code may be decoded, in part, by determining combinable bits contained within a set of received symbols, and computing one or more log-likelihood ratio values corresponding to each symbol in the set of received symbols.
摘要翻译：提供了用于以增量冗余混合自动重复请求协议发送和接收母码的技术。对应于消息的一组信息位可以被编码和交织以产生母码。母码的每个比特位置可以被映射到输出符号，并且每个输出符号可以被映射到天线以进行传输。可以执行输出符号中包含的符号的一个或多个传输，其中每个传输可以包括通过从输出符号中选择一个或多个符号来对母码进行穿刺，并且在天线上的一个或多个符号中发送每个符号到那个符号。可以部分地通过确定包含在一组接收到的符号内的可组合比特，以及计算与所接收的符号集合中的每个符号相对应的一个或多个对数似然比值来对母码进行解码。

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