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. 发明授权

US08588193B1 Enhanced wireless data rates using multiple beams 有权
标题翻译：使用多个波束增强的无线数据速率
公开(公告)号：US08588193B1
公开(公告)日：2013-11-19
申请号：US12699758
申请日：2010-02-03
申请人： Keangpo Ricky Ho , Jianhan Liu , Guocong Song , Karim Nassiri Toussi , Jeffrey M. Gilbert
发明人： Keangpo Ricky Ho , Jianhan Liu , Guocong Song , Karim Nassiri Toussi , Jeffrey M. Gilbert
IPC分类号： H04W4/00
CPC分类号： H01Q3/30 , H04B7/0617 , H04B7/0619
摘要： Enhanced wireless speeds are obtained using multiple transmission beams. In one example a transmitter sends data packets through an antenna array using multiple spatial beams and a plurality of analog converters. A receiver receives feedback from a remote station, the feedback including a quality measure of data packets received from the transmitter. A processor to controls transmission parameters of the transmitter using the feedback, the processor having a plurality of states, in a first channel analysis state, the processor determining a beam-forming vector for the antenna array, in a second beam search and training state, the processor determining pre-coding coefficients for the data packets, and in a third high rate transmission state, the processor providing pre-coded data packets to the transmitter for transmission, wherein the processor transitions from the third state to the first state upon receiving a reduced quality measure from the remote station.
摘要翻译：使用多个发射波束获得增强的无线速度。在一个示例中，发射机通过使用多个空间波束和多个模拟转换器的天线阵列发送数据分组。接收机从远程站接收反馈，反馈包括从发射机接收的数据分组的质量测量。一种处理器，用于使用所述反馈来控制所述发射机的传输参数，所述处理器在第一信道分析状态下具有多个状态，所述处理器以第二波束搜索和训练状态确定所述天线阵列的波束形成向量，所述处理器确定所述数据分组的预编码系数，并且在第三高速率传输状态中，所述处理器向所述发射机提供预编码的数据分组以进行传输，其中所述处理器在接收到所述第一状态时从所述第三状态转换到所述第一状态从远程站降低质量测量。

2. 发明申请

US20120121046A1 Repetition Coding For A Wireless System 有权
标题翻译：无线系统的重复编码
公开(公告)号：US20120121046A1
公开(公告)日：2012-05-17
申请号：US13356580
申请日：2012-01-23
申请人： Won-Joon Choi , Qinfang Sun , Jeffrey M. Gilbert
发明人： Won-Joon Choi , Qinfang Sun , Jeffrey M. Gilbert
IPC分类号： H04L27/06 , H04L27/00
CPC分类号： H04L1/08 , H04L1/0071
摘要： A system and method are disclosed for transmitting data over a wireless channel. In some embodiments, transmitting data includes receiving convolutionally encoded data and enhancing the transmission of the data by further repetition encoding the data.
摘要翻译：公开了一种通过无线信道发送数据的系统和方法。在一些实施例中，发送数据包括接收卷积编码的数据，并通过进一步重复编码数据来增强数据的传输。

3. 发明授权

US07948961B2 Wireless proximity estimation 有权
标题翻译：无线邻近估计
公开(公告)号：US07948961B2
公开(公告)日：2011-05-24
申请号：US12011404
申请日：2008-01-25
申请人： Kumar Mahesh , Karthik Krishnaswami , Karen Wang , Jeffrey M. Gilbert , Chuen-Shen (Bernard) Shung , Chih-Yuan Hsieh , Kyeong Ryu , Prakash Kamath
发明人： Kumar Mahesh , Karthik Krishnaswami , Karen Wang , Jeffrey M. Gilbert , Chuen-Shen (Bernard) Shung , Chih-Yuan Hsieh , Kyeong Ryu , Prakash Kamath
IPC分类号： H04J3/00
CPC分类号： H04L63/08 , H04L43/0864 , H04L43/50 , H04L63/0492 , H04L63/10
摘要： A wireless content protection system includes a coordinator, a source device, and a sink device. The coordinator includes a scheduler. The source and sink devices each have a content protection manager. One of the content protection manager allocates and releases bandwidth via the coordinator for a test message and a response message for a round-trip time computation. The test message is transmitted in a source-to-sink channel time block. The response message is transmitted in a sink-to-source channel time block. The round-trip time is the period between the end of the source-to-sink channel time block and the beginning of the sink-to-source channel time block.
摘要翻译：无线内容保护系统包括协调器，源设备和宿设备。协调器包括一个调度程序。源和宿设备各具有内容保护管理器。内容保护管理器之一通过协调器分配和释放用于测试消息的带宽和用于往返时间计算的响应消息。测试消息在源到信道信道时间块中传输。响应消息在宿到源信道时间块中发送。往返时间是源到信道信道时间块的结束与信宿到源信道时间块的开始之间的周期。

4. 发明申请

US20100316175A1 Packet detection, synchronization, and frequency offset estimation 有权
公开(公告)号：US20100316175A1
公开(公告)日：2010-12-16
申请号：US12800815
申请日：2010-05-21
申请人： Chaohuang Zeng , Jeffrey M. Gilbert , Won-Joon Choi , Xiaoru Zhang
发明人： Chaohuang Zeng , Jeffrey M. Gilbert , Won-Joon Choi , Xiaoru Zhang
IPC分类号： H04L7/02
CPC分类号： H04L27/0014 , H04L7/042 , H04L25/0226 , H04L2027/003
摘要： Techniques are disclosed for detecting a packet. One technique includes sampling a received signal to produce a sequence of samples wherein the sequence of samples includes a plurality of subsequences of samples; cross correlating the subsequences of samples with a known form of the subsequence to produce cross correlations; self correlating the cross correlations to produce a plurality of self correlations; summing the self correlations; and processing the sum of the self correlations.

5. 发明授权

US07853216B1 Multi-channel RX/TX calibration and local oscillator mismatch mitigation 有权
标题翻译：多通道RX / TX校准和本地振荡器失配减轻
公开(公告)号：US07853216B1
公开(公告)日：2010-12-14
申请号：US11613977
申请日：2006-12-20
申请人： Donald Breslin , Jeffrey M. Gilbert
发明人： Donald Breslin , Jeffrey M. Gilbert
IPC分类号： H04B17/00 , H04B7/02
CPC分类号： H01Q21/29 , H04B17/11
摘要： A method and system of optimizing transmit beam forming in a multiple radio wireless system is provided. A stimulus signal can be provided to an analog receive input of a device under test (DUT), wherein the DUT includes multiple radios. A receive phase and amplitude can be measured at baseband using the stimulus signal for each radio. At this point, a receive weight and its conjugate can be determined using the receive phases and amplitudes. A calibration vector and its conjugate can also be determined, wherein a product of the receive weight conjugate and the calibration vector conjugate generate a transmit weight. This transmit weight can be applied to transmit signals during the transmit beam forming using the multiple radios.
摘要翻译：提供了一种在多无线电无线系统中优化发射波束形成的方法和系统。激励信号可以被提供给待测器件（DUT）的模拟接收输入，其中DUT包括多个无线电。可以使用每个无线电的激励信号在基带处测量接收相位和幅度。在这一点上，可以使用接收相位和振幅来确定接收权重及其共轭。还可以确定校准向量及其共轭，其中接收权重共轭和校准向量共轭的乘积产生传输权重。该发送权重可以应用于在使用多个无线电的发射波束形成期间发射信号。

6. 发明申请

US20100014504A1 Multiple-Input Multiple-Output System And Method 有权
标题翻译：多输入多输出系统及方法
公开(公告)号：US20100014504A1
公开(公告)日：2010-01-21
申请号：US12569852
申请日：2009-09-29
申请人： Qinfang Sun , Won-Joon Choi , Jeffrey M. Gilbert , Ardavan Maleki Tehrani
发明人： Qinfang Sun , Won-Joon Choi , Jeffrey M. Gilbert , Ardavan Maleki Tehrani
IPC分类号： H04J3/00 , H04L27/28 , H04L27/06 , H04L27/08 , H04B7/10
CPC分类号： H04B7/0421 , H04B7/0413 , H04B7/0613 , H04B7/0684 , H04L1/0041 , H04L1/0054 , H04L1/0061 , H04L1/06 , H04L1/0656 , H04L1/1819 , H04L1/1829 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L27/0014 , H04L2025/03426
摘要： A multiple-input multiple-output (MIMO) system can transmit on multiple antennas simultaneously and receive on multiple antennas simultaneously. Unfortunately, because a legacy 802.11a/g device is not able to decode multiple data streams, such a legacy device may “stomp” on a MIMO packet by transmitting before the transmission of the MIMO packet is complete. Therefore, MIMO systems and methods are provided herein to allow legacy devices to decode the length of a MIMO packet and to restrain from transmitting during that period. These MIMO systems and methods are optimized for efficient transmission of MIMO packets.
摘要翻译：多输入多输出（MIMO）系统可以同时在多个天线上进行发射并同时在多个天线上进行接收。不幸的是，由于遗留802.11a / g设备不能解码多个数据流，所以这样的传统设备可能在完成MIMO分组的传输之前通过发送来“踩踏”MIMO分组。因此，本文提供MIMO系统和方法，以允许传统设备对MIMO分组的长度进行解码并且在该时间段内抑制发射。这些MIMO系统和方法被优化用于MIMO分组的有效传输。

7. 发明授权

US07636400B2 Decoding system and method for digital communications 有权
公开(公告)号：US07636400B2
公开(公告)日：2009-12-22
申请号：US11621940
申请日：2007-01-10
申请人： John S. Thomson , Paul J. Husted , Ardavan Maleki Tehrani , Jeffrey M. Gilbert , William J. McFarland , Lars E. Thon , Yi-Hsiu Wang
发明人： John S. Thomson , Paul J. Husted , Ardavan Maleki Tehrani , Jeffrey M. Gilbert , William J. McFarland , Lars E. Thon , Yi-Hsiu Wang
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L25/067 , H03M13/25 , H03M13/3961 , H03M13/41 , H03M13/6325 , H03M13/6362 , H04K3/228 , H04L1/005 , H04L1/0054 , H04L27/38
摘要： A Viterbi decoding system interprets bits in received QAM constellations as many-valued parameters rather than binary valued parameters. It performs the Viterbi algorithm using these many-valued parameters to provide results superior to hard decision decoding. Rather than applying a hard 0-1 function to the QAM data, the system uses a non-stepped linear or curved transfer function to assign values to the bits. In another aspect, a system differentiates between data bits based on their estimated reliability, giving more emphasis to decoding reliable bits than unreliable bits using any of a variety of techniques. By differentiating between god and bad bits and de-emphasizing or ignoring unreliable bits, the system can provide a significant reduction in uncorrectable errors and packet loss.

8. 发明申请

US20090010365A1 Repetition coding for a wireless system 审中-公开
标题翻译：无线系统的重复编码
公开(公告)号：US20090010365A1
公开(公告)日：2009-01-08
申请号：US12217300
申请日：2008-07-01
申请人： Won-Joon Choi , Qinfang Sun , Jeffrey M. Gilbert
发明人： Won-Joon Choi , Qinfang Sun , Jeffrey M. Gilbert
IPC分类号： H04L27/06
CPC分类号： H04L1/08 , H04L1/0071
摘要： A system and method are disclosed for transmitting data over a wireless channel. In some embodiments, transmitting data includes receiving convolutionally encoded data and enhancing the transmission of the data by further repetition encoding the data.
摘要翻译：公开了一种通过无线信道发送数据的系统和方法。在一些实施例中，发送数据包括接收卷积编码的数据，并通过进一步重复编码数据来增强数据的传输。

9. 发明授权

US07463704B1 Multi-chain signal detection and gain control for automatic gain control systems 有权
标题翻译：用于自动增益控制系统的多链信号检测和增益控制
公开(公告)号：US07463704B1
公开(公告)日：2008-12-09
申请号：US10884787
申请日：2004-07-01
申请人： Ardavan Maleki Tehrani , Xiaoru Zhang , Paul J. Husted , Jeffrey M. Gilbert
发明人： Ardavan Maleki Tehrani , Xiaoru Zhang , Paul J. Husted , Jeffrey M. Gilbert
IPC分类号： H04L27/08
CPC分类号： H03G3/3068 , H03G3/3078
摘要： A wireless local area network (WLAN) system can have multiple antennas to improve signal detection and decoding. A WLAN receiver in such a system includes multiple amplifiers that can appropriately size an incoming signal and an automatic gain control unit to process the received incoming signals. The amplifiers of a chain of the WLAN receiver, i.e. an antenna and associated receiver components, can be adjusted with computed gains. To optimize the wireless system detection and decoding, the automatic gain control unit can advantageously compute these gains for each amplifier in the WLAN receiver.
摘要翻译：无线局域网（WLAN）系统可以具有多个天线来改善信号检测和解码。这种系统中的WLAN接收机包括可以适当地调整输入信号的大小的放大器和自动增益控制单元来处理接收到的输入信号。可以利用计算的增益来调整WLAN接收器链的放大器，即天线和相关联的接收器组件。为了优化无线系统检测和解码，自动增益控制单元可以有利地计算WLAN接收机中每个放大器的这些增益。

10. 发明申请

US20080130741A1 Wireless HD AV packet format 有权
标题翻译：无线高清AV数据包格式
公开(公告)号：US20080130741A1
公开(公告)日：2008-06-05
申请号：US11982209
申请日：2007-10-31
申请人： Ching-Hsiu Chiang , Jeffrey M. Gilbert , Victor Ramamoorthy
发明人： Ching-Hsiu Chiang , Jeffrey M. Gilbert , Victor Ramamoorthy
IPC分类号： H04N11/04
CPC分类号： H04L12/6418 , G09G5/006 , G09G2370/045 , G09G2370/10 , G09G2370/16 , H04L65/607 , H04L2012/6448
摘要： An audio/video (AV) processor is coupled to a media access controller (MAC) to generate a composite packet having an optimized format for carrying audio, video, and data traffic with fields in a header of the composite packet specifying video-specific information. A physical device interface (PHY) is coupled to the MAC. The PHY encodes and decodes between a digital signal and a modulated analog signal. The PHY comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). A radio frequency (RF) transmitter is coupled to the PHY to transmit data.
摘要翻译：音频/视频（AV）处理器被耦合到媒体接入控制器（MAC）以产生具有优化格式的复合分组，所述优化格式用于承载音频，视频和数据业务，其中所述组合分组的报头中的字段指定视频专用信息。物理设备接口（PHY）耦合到MAC。 PHY在数字信号和调制的模拟信号之间进行编码和解码。 PHY包括高速物理层电路（HRP）和低速物理层电路（LRP）。射频（RF）发射机耦合到PHY以传输数据。

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