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81. 发明申请

US20120144445A1 METHOD AND APPARATUS FOR DISTRIBUTING VIDEO 有权
公开(公告)号：US20120144445A1
公开(公告)日：2012-06-07
申请号：US12959580
申请日：2010-12-03
申请人： Jeffrey D. Bonta , Kevin L. Baum , George Calcev , Benedito J. Fonseca, JR.
发明人： Jeffrey D. Bonta , Kevin L. Baum , George Calcev , Benedito J. Fonseca, JR.
IPC分类号： H04N7/173
CPC分类号： H04N21/6405 , H04L12/1868 , H04L65/1069 , H04L65/4076 , H04L65/602 , H04L65/608 , H04L65/80 , H04L67/02 , H04N21/2187 , H04N21/2358 , H04N21/26258 , H04N21/41407 , H04N21/6131 , H04N21/6375 , H04N21/6408 , H04N21/64784 , H04N21/8456
摘要： A method and apparatus for distributing live video to multiple client devices is provided herein. In particular, a router is provided that acts on behalf of all client devices in its network. The router serves multiple groups of client devices with each group being formed by client devices having similar bandwidth requirements. The router then requests and receives video chunks from a network. The router then redistributes the video chunks to the multiple client devices using a multicast transmission. In particular, to minimize the demands on the core network, the router sets up a separate multicast to each group. Live video, of the appropriate quality is then multicast to each group.

82. 发明申请

US20120030723A1 METHOD AND APPARATUS FOR STREAMING VIDEO 审中-公开
标题翻译：流动视频的方法和装置
公开(公告)号：US20120030723A1
公开(公告)日：2012-02-02
申请号：US12843930
申请日：2010-07-27
申请人： Kevin L. Baum , Jeffrey D. Bonta , George Calcev , Benedito J. Fonseca, JR.
发明人： Kevin L. Baum , Jeffrey D. Bonta , George Calcev , Benedito J. Fonseca, JR.
IPC分类号： H04N7/173
CPC分类号： H04N21/8456 , H04N21/234327 , H04N21/4621 , H04N21/47202
摘要： A method and apparatus for transmitting video is provided herein. A video representation is segmented into video chunks, with each chunk spanning a different time interval. Each chunk may be divided into two or more sub-chunks. During operation, the client requests a sub-chunk of a particular video chunk and then possibly requests an additional sub-chunk of the video chunk. The client then combines and decodes the sub-chunks to provide a reconstructed video chunk for playback on a device. In an embodiment, I-frames of a video chunk are made available in a separate sub-chunk file than P-frames (or B-frames).
摘要翻译：本文提供了一种用于传输视频的方法和装置。视频表示被分割成视频块，每个块跨越不同的时间间隔。每个块可以分为两个或更多个子块。在操作期间，客户端请求特定视频块的子块，然后可能请求视频块的附加子块。然后，客户端组合并解码子块，以提供用于在设备上回放的重构的视频块。在一个实施例中，视频块的I帧在单独的子块文件中比P帧（或B帧）可用。

83. 发明授权

US08059555B2 Method and apparatus for closed loop transmission 有权
标题翻译：闭环传动的方法和装置
公开(公告)号：US08059555B2
公开(公告)日：2011-11-15
申请号：US12169771
申请日：2008-07-09
申请人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
发明人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
IPC分类号： H04W4/00 , H04L12/26
CPC分类号： H04L5/0094 , H04L5/0023 , H04L5/0026 , H04L5/0051 , H04L25/0226 , H04L25/03343 , H04L27/2613 , H04L2025/03414 , H04L2025/03426 , H04L2025/03796 , H04L2025/03815 , H04W72/04
摘要： In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response.
摘要翻译：在无线通信系统中，公开了一种用于闭环传输的方法和装置。根据本发明的优选实施例，上行链路帧的时间频率部分被动态地保留作为用于上行链路信道探测的探测区域。在下行链路帧中向第一用户台发送第一消息，分配探测区域内的时间 - 频率资源和发声波形。此外，在所分配的时间 - 频率资源内从用户站接收信号，从接收到的探测信号确定部分信道响应，并且基于至少部分信道响应来定制对用户站的后续传输。

84. 发明授权

US07656842B2 Method and apparatus for MIMO transmission optimized for successive cancellation receivers 有权
标题翻译：用于连续取消接收机优化的MIMO传输的方法和装置
公开(公告)号：US07656842B2
公开(公告)日：2010-02-02
申请号：US11209308
申请日：2005-08-23
申请人： Timothy A. Thomas , Kevin L. Baum , Frederick W. Vook , Xiangyang Zhuang
发明人： Timothy A. Thomas , Kevin L. Baum , Frederick W. Vook , Xiangyang Zhuang
IPC分类号： H04W4/00
CPC分类号： H04B7/0634 , H04B7/04 , H04B7/0636 , H04B7/0639 , H04B7/066 , H04B7/0691 , H04L27/2601
摘要： A method for communicating a plurality of data streams between a transmitting device with multiple transmit antennas and a receiving device, is disclosed. The method comprises determining a list consisting of a subset of the multiple transmit antennas on which the transmitting device will transmit data, determining a set of power weightings, providing the set of power weightings and the list of the subset of the multiple transmit antennas to the transmitting device, weighting a plurality of data streams by the power weightings, and transmitting the power weighted data streams on the subset of the multiple transmit antennas to the receiving device. Another aspect of the invention comprises maintaining a codebook consisting of a plurality of transmit weight vectors at both the transmitting device and the receiving device. The method also comprises determining a list consisting of a subset of the plurality of transmit weight vectors which to use for transmitting the multiple data streams, determining a set of power weightings to be use for each data stream, providing the set of power weightings and the list of the subset of the plurality of transmit weight vectors to the transmitting device, and weighting the data streams by the power weightings and beamforming the data streams with the subset of the plurality of transmit weight vectors.
摘要翻译：公开了一种在具有多个发射天线的发射装置与接收装置之间传送多个数据流的方法。该方法包括确定由发射设备将在其上发射数据的多个发射天线的子集组成的列表，确定一组功率加权，提供该组功率加权和多个发射天线的子集的列表到发送设备，通过功率加权对多个数据流进行加权，以及将多个发射天线的子集上的功率加权数据流发送到接收设备。本发明的另一方面包括在发送设备和接收设备两者处维护由多个发送权重向量组成的码本。该方法还包括确定由用于发送多个数据流的多个发射权重向量的子集组成的列表，确定要为每个数据流使用的一组功率权重，提供该组功率权重和将多个发射权重向量的子集的列表发送到发射装置，以及通过功率加权对数据流进行加权，并且利用多个发射权重向量的子集对数据流进行波束形成。

85. 发明授权

US07426198B2 Method and apparatus for performing spatial-division multiple access 有权
标题翻译：用于执行空分多址的方法和装置
公开(公告)号：US07426198B2
公开(公告)日：2008-09-16
申请号：US11275938
申请日：2006-02-06
申请人： Bishwarup Mondal , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas , Frederick W. Vook
发明人： Bishwarup Mondal , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas , Frederick W. Vook
IPC分类号： H04Q7/00
CPC分类号： H04B7/0617 , H04B7/0452 , H04B7/0634 , H04B7/0639 , Y02D70/444
摘要： A method and apparatus for performing spatial-division multiple access within a communication system is provided herein. During operation, nodes will return null subspace information along with their channel subspace information. The null subspace is similar to the channel subspace except that the null subspace information directs a base station to the matrix in a predefined codebook that results in minimum power being received at the node. The null subspace for each node is taken into consideration when communicating with a particular node.
摘要翻译：本文提供了一种在通信系统内执行空分多址的方法和装置。在运行期间，节点将返回空子空间信息及其信道子空间信息。空子空间类似于信道子空间，除了空子信息将基站指向预定义码本中的矩阵，导致在该节点处接收的最小功率。当与特定节点进行通信时，将考虑每个节点的空子空间。

86. 发明授权

US5812615A Apparatus and method for maximizing frequency offset tracking performance in a digital receiver 失效
标题翻译：用于使数字接收机中的频偏跟踪性能最大化的装置和方法
公开(公告)号：US5812615A
公开(公告)日：1998-09-22
申请号：US897338
申请日：1997-07-21
申请人： Kevin L. Baum , David Paul Gurney , Stephen Leigh Kuffner
发明人： Kevin L. Baum , David Paul Gurney , Stephen Leigh Kuffner
IPC分类号： H03J7/02 , H03J7/06 , H04L27/07
CPC分类号： H03J7/02 , H03J7/065
摘要： An automatic frequency control loop structure utilizes a dual selection automatic frequency control unit which is coupled to a differential phase unit and a coherent phase unit to provide a frequency corrected received signal output for efficient tracking of frequency offset drift and a much lower probability of loss of automatic frequency control loop lock. Thus, a signal from a coherent carrier recovery process provides additional benefit by utilization in adjusting frequency offset tracking performance.
摘要翻译：自动频率控制环结构利用双选择自动频率控制单元，其耦合到差分相位单元和相干相位单元，以提供频率校正的接收信号输出，用于有效跟踪频偏漂移，并且具有更低的丢失概率自动频率控制回路锁定。因此，来自相干载波恢复过程的信号通过利用调整频偏跟踪性能提供额外的益处。

87. 发明授权

US5379324A System and method for calculating channel gain and noise variance of a communication channel 失效
标题翻译：用于计算通信信道的信道增益和噪声方差的系统和方法
公开(公告)号：US5379324A
公开(公告)日：1995-01-03
申请号：US008249
申请日：1993-01-25
申请人： Bruce D. Mueller , Kevin L. Baum , David E. Borth , Phillip D. Rasky , Eric H. Winter
发明人： Bruce D. Mueller , Kevin L. Baum , David E. Borth , Phillip D. Rasky , Eric H. Winter
IPC分类号： H04B3/04 , H04B7/00 , H04B7/005 , H04B7/08 , H04L1/02 , H04L25/06 , H04L27/01 , H04L27/22 , H04L27/06
CPC分类号： H04L27/22 , H04B7/0845 , H04L25/067
摘要： A system and method for correcting for Rayleigh interference of a signal transmitted upon a multi-path channel. The system adaptively calculates values of channel gain and noise variance of the channel upon which the signal is transmitted, and generates signals indicative of such calculations which are supplied to a decoder. The system may be utilized to form a portion of a coherent, or noncoherent receiver which receives encoded and differentially-encoded signals.
摘要翻译：一种用于校正在多路径信道上发送的信号的瑞利干扰的系统和方法。系统自适应地计算发送信号的信道的信道增益和噪声方差的值，并产生指示这样的计算的信号，这些信号被提供给解码器。该系统可以用于形成接收编码和差分编码的信号的相干或非相干接收机的一部分。

88. 发明授权

US5230007A Method for optimizing an adaptive filter update coefficient 失效
标题翻译：优化自适应滤波器更新系数的方法
公开(公告)号：US5230007A
公开(公告)日：1993-07-20
申请号：US722825
申请日：1991-06-28
申请人： Kevin L. Baum
发明人： Kevin L. Baum
IPC分类号： H03H17/00 , H03H21/00 , H04B3/04 , H04B3/23
CPC分类号： H03H21/0043
摘要： The method of the present invention generates an optimal adaptive filter update coefficient by first generating three error signals using a signal input and three update coefficients (301-303). Mean Square Error (MSE) values are estimated (307 and 308) for the first and third error signals. The first MSE value (307) is substracted (309) from the third MSE value (308) to generate a difference signal. The difference signal is used to generate (310) an update signal that is used to modify the update coefficients. The process of the present invention is repeated until the difference signal is substantially zero, thus optimizing the second update coefficient. This process enables an update coefficient for an adaptive filter to quickly adapt to a changing environment.
摘要翻译：本发明的方法通过使用信号输入和三个更新系数（301-303）首先产生三个误差信号来产生最佳的自适应滤波器更新系数。对于第一和第三误差信号，估计均方误差（MSE）值（307和308）。从第三MSE值（308）将第一MSE值（307）减去（309）以产生差分信号。差分信号用于产生（310）用于修改更新系数的更新信号。重复本发明的过程，直到差信号基本上为零，从而优化第二更新系数。该过程使得自适应滤波器的更新系数能够快速适应不断变化的环境。

89. 发明授权

US5195106A Method for channel adaptive detecting/equalize 失效
标题翻译：用于通道自适应检测/均衡的方法
公开(公告)号：US5195106A
公开(公告)日：1993-03-16
申请号：US612656
申请日：1990-11-14
申请人： Henry L. Kazecki , Steven H. Goode , Donald W. Dennis , James C. Baker , Kevin L. Baum , Bruce D. Mueller
发明人： Henry L. Kazecki , Steven H. Goode , Donald W. Dennis , James C. Baker , Kevin L. Baum , Bruce D. Mueller
IPC分类号： H04B7/005 , H04L27/22
CPC分类号： H04L27/22 , H04B7/005
摘要： In a communications device, two coherent detection algorithms (102 and 103), one of which has a decision feedback equalizer (103), and a detector selection algorithm (104) are used to dynamically select a detector depending on whether delay spread distortion is present. First the correlation of the detector without the equalizer (102) is measured. If this correlation is greater than a predetermined threshold, the data from that detector (102) is used by the communications device. If the correlation is less than the threshold, the correlation of the detector with the equalizer (103) is measured. If this is less than the correlation of the detector without the equalizer (102), the data from the detector without the equalizer (102) is used, otherwise the data is taken from the equalizer (103).
摘要翻译：在通信设备中，使用两个相干检测算法（102和103），其中之一具有判决反馈均衡器（103）和检测器选择算法（104），以根据是否存在延迟扩展失真来动态地选择检测器。首先测量没有均衡器（102）的检测器的相关性。如果该相关性大于预定阈值，则来自该检测器（102）的数据由通信设备使用。如果相关性小于阈值，则测量检测器与均衡器（103）的相关性。如果这小于没有均衡器（102）的检测器的相关性，则使用来自没有均衡器（102）的检测器的数据，否则数据取自均衡器（103）。

90. 发明授权

US08396024B2 Cooperative communications using multiple access points to improve data integrity 有权
标题翻译：使用多个接入点的协作通信来提高数据的完整性
公开(公告)号：US08396024B2
公开(公告)日：2013-03-12
申请号：US12360345
申请日：2009-01-27
申请人： Kevin L. Baum , Timothy A. Thomas
发明人： Kevin L. Baum , Timothy A. Thomas
IPC分类号： H04W4/00
CPC分类号： H04W72/0426 , H04B7/024 , H04B17/318 , H04W36/18
摘要： A method (300, 400, 500, 600) of communicating with a subscriber station (102). Responsive to determining that a supplemental communication link with the subscriber station is desirable, at least a second access point (106, 108, 110, 112, 114, 116) can be identified to establish the supplemental communication link with the subscriber station. Information can be communicated to the second access point. The information can identify the subscriber station and a pilot zone in which downlink supplemental data is to be transmitted from the second access point to the subscriber station. Downlink supplemental data (150) also can be communicated to the second access point. The downlink supplemental data can improve integrity of data transmitted from a first access point (104) to the subscriber station when the downlink supplemental data is transmitted to the subscriber station from the second access point.
摘要翻译：一种与用户站（102）通信的方法（300,400,500,600）。响应于确定与订户站的补充通信链路是期望的，至少可以识别第二接入点（106,108,110,112,114,116）以建立与订户站的补充通信链路。信息可以传送到第二接入点。该信息可以识别订户站以及下行链路补充数据将从第二接入点发送到用户站的导频区域。下行链路补充数据（150）也可以被传送到第二接入点。当下行链路补充数据从第二接入点发送到用户站时，下行链路补充数据可以改善从第一接入点（104）发送到用户站的数据的完整性。

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