公开(公告)号：US20120027082A1

公开(公告)日：2012-02-02

申请号：US13253937

申请日：2011-10-05

申请人： Guoyao Yu ,  Mayer D. Schwartz ,  Charles H. Van Dusen ,  Peter Borgwardt

发明人： Guoyao Yu ,  Mayer D. Schwartz ,  Charles H. Van Dusen ,  Peter Borgwardt

IPC分类号： H04N7/26 ,  H04N7/32

CPC分类号： H04N21/44004 ,  H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/15 ,  H04N19/152 ,  H04N19/172 ,  H04N19/176 ,  H04N19/194 ,  H04N19/436 ,  H04N21/23406

摘要： A method of operating a multi-processor video encoder by determining a target size corresponding to a preferred number of bits to be used when creating an encoded version of a picture in a group of sequential pictures making up a video sequence. The method includes the steps of calculating a first degree of fullness of a coded picture buffer at a first time, operating on the first degree of fullness to return an estimated second degree of fullness of the coded picture buffer at a second time, and operating on the second degree of fullness to return an initial target sized for the picture. The first time corresponds to the most recent time an accurate degree of fullness of the coded picture buffer can be calculated and the second time occurs after the first time.

摘要翻译： 一种通过在构成视频序列的一组连续图像中创建图像的编码版本时，通过确定与要使用的优选位数相对应的目标大小来操作多处理器视频编码器的方法。 该方法包括以下步骤：在第一时间计算编码图像缓冲器的第一饱和度，在第一次饱和度下操作，以在第二时间返回编码图像缓冲器的估计第二饱和度，并且操作 第二度的丰满度返回一幅初始的图像大小。 第一次对应于最近的时间，可以计算编码图像缓冲器的准确程度的饱和度，并且第二次在第一次之后发生。

公开(公告)号：US07781915B2

公开(公告)日：2010-08-24

申请号：US11695772

申请日：2007-04-03

申请人： Harold H. Webber ,  John R. Marum

发明人： Harold H. Webber ,  John R. Marum

IPC分类号： H04B3/00

CPC分类号： G06F1/266 ,  H04L12/10

摘要： Apparatus for delivering operating power from a data terminus to a utilization device includes a first data connection connecting the data terminus to a data repeater station and a second data connection connecting the data repeater station to the utilization device. A first power sourcing equipment delivers DC operating power to the data repeater station over a physical layer of the first data connection. A second power sourcing equipment at the repeater station receives operating power over the physical layer of the first data connection and delivers operating power over a physical layer of the second data connection to the utilization device.

摘要翻译： 用于从数据终端向利用装置传送工作电力的装置包括将数据终端连接到数据中继站的第一数据连接和将数据中继站连接到利用装置的第二数据连接。 第一个电源设备通过第一个数据连接的物理层向数据中继站提供直流工作电源。 中继站上的第二电源设备通过第一数据连接的物理层接收工作电力，并将第二数据连接的物理层上的工作电力传送到利用装置。

公开(公告)号：US6028540A

公开(公告)日：2000-02-22

申请号：US899220

申请日：1997-07-23

申请人： Martin H. Graham

发明人： Martin H. Graham

IPC分类号： H03M5/14

CPC分类号： H03M5/14

摘要： A binary data encoding and decoding technique that alternates between starting polarities of a signal for both each occurrence of a binary 1 and each occurrence of two or more consecutive binary 0's. To encode a binary 1, the signal is one polarity for one-half of a bit interval and then the other polarity for the other half of the bit interval. To encode a binary 0, the signal remains at a zero level, unless there are two or more consecutive binary 0's, in which case the signal will be one polarity for the second half of the first binary 0 bit interval, the other polarity for the first half of the second binary 0 bit interval, and repeat this waveform for every for every two adjacent binary 0's. Decoding occurs by examination of either the signal level as compared to predetermined cut-levels, or the time equivalent distance between the peaks. In the first case, if the signal is above the upper cut-level or below the lower cut-level, a binary 1 is decoded; if it is between the upper cut-level and the lower cut-level a binary 0 is decoded. Alternatively, every occurrence of a peak is decoded as a binary 1 and the number of binary 0's between these binary 1's is determined by the time equivalent distance between peaks.

摘要翻译： 二进制数据编码和解码技术，其在每次出现二进制1和每次出现两个或更多个连续二进制0的信号的起始极性之间交替。 为了对二进制1进行编码，信号是一个位间隔的一半的一个极性，然后是位间隔的另一个的另一个极性。 为了编码二进制0，信号保持在零电平，除非有两个或更多个连续的二进制0，在这种情况下，信号将是第一个二进制0位间隔的后半段的一个极性， 第二个二进制0比特间隔的前半部分，并且对于每两个相邻二进制0的每一个重复该波形。 通过检查与预定切割级别相比的信号电平或峰值之间的时间等效距离来进行解码。 在第一种情况下，如果信号高于较低切割级或低于下切割级，则二进制1被解码; 如果在上切割级和下切割级之间，二进制0被解码。 或者，峰值的每次出现被解码为二进制1，并且这些二进制1之间的二进制0的数量由峰值之间的时间等效距离确定。

公开(公告)号：US5982741A

公开(公告)日：1999-11-09

申请号：US156573

申请日：1998-09-17

申请人： Steven L. Ethier

发明人： Steven L. Ethier

IPC分类号： H04L1/00 ,  H04L12/26 ,  H04L12/46 ,  H04L25/06 ,  H04J1/12 ,  H04J3/10 ,  H04J15/00

CPC分类号： H04L1/0021 ,  H04L1/0001 ,  H04L12/2602 ,  H04L12/4625 ,  H04L25/06 ,  H04L43/00

摘要： A method of adjusting the sensitivity of a receiver requires the association of a network address of a remote network device, such as a computer, with a first port of a multiport network device, such as a switch. The reception of the network address of the remote network device at a second port of the multiport network device indicates the possible occurrence of a cross-talk condition between networks coupled to the first and second ports. Accordingly, the sensitivity of a receiver associated with the second port is reduced in an attempt to reduce the sensitivity thereof to a point at which cross-talk signals, generated as a result of the cross-talk condition between networks coupled to the first and second ports, are no longer detected. The sensitivity of the receiver may be reduced by increasing a noise threshold level below which signals are not detected.

摘要翻译： 调整接收机的灵敏度的方法要求诸如计算机的远程网络设备的网络地址与诸如交换机的多端口网络设备的第一端口相关联。 在多端口网络设备的第二端口接收远程网络设备的网络地址指示耦合到第一和第二端口的网络之间可能出现串扰状况。 因此，减少与第二端口相关联的接收机的灵敏度，以试图将其灵敏度降低到作为由耦合到第一和第二端口的网络之间的串扰条件而产生的串扰信号的点 端口，不再被检测到。 接收机的灵敏度可以通过增加低于哪个信号未检测到的噪声阈值水平来降低。

公开(公告)号：US5450594A

公开(公告)日：1995-09-12

申请号：US172489

申请日：1993-12-22

申请人： Charles M. Aden ,  Martin H. Graham

发明人： Charles M. Aden ,  Martin H. Graham

IPC分类号： H04L12/413 ,  H04Q1/20

CPC分类号： H04L12/40006 ,  H04L12/413

摘要： Enhanced collision detection in an Ethernet network, particularly useful for passive nodes using receive mode collision detection. When a transmitting node detects a collision, for example, using transmit mode collision detection, it activates a current sink at the node further reducing the DC potential on the line. This reduced DC potential assists in overcoming the low frequency impedance which may exist between the transmitting node and a remotely located passive node.

摘要翻译： 以太网网络中增强的冲突检测，特别适用于使用接收模式冲突检测的被动节点。 当发送节点检测到冲突时，例如使用发射模式冲突检测，它激活节点处的电流接收器，进一步降低线路上的直流电位。 这种减小的DC电位有助于克服可能存在于发射节点和远程定位的被动节点之间的低频阻抗。

公开(公告)号：US5365515A

公开(公告)日：1994-11-15

申请号：US234726

申请日：1994-04-28

申请人： Martin H. Graham

发明人： Martin H. Graham

IPC分类号： G08B29/06 ,  H04L12/26 ,  H04B17/00

CPC分类号： H04L43/00 ,  G08B29/06 ,  H04L12/2602 ,  H04L12/2697 ,  H04L43/50 ,  H04L43/0811

摘要： An apparatus for monitoring and testing a twisted pair, particularly useful for an Ethernet network. First and second DC currents alternated with one another are applied to both ends of the line, asynchronously. By monitoring the potential on the line, a determination is made as to the condition of the line. For example, shorted, crossed, improperly terminated or open conditions can be detected. A visual indication of the condition of the line is provided and additionally, the visual indication provides an indication of the traffic level in the network.

摘要翻译： 一种用于监控和测试双绞线的设备，特别适用于以太网。 彼此交替的第一和第二直流电流被异步地施加到线路的两端。 通过监测线路上的电位，确定线路的状况。 例如，可以检测到短路，交叉，不正确终止或开放条件。 提供线路状况的视觉指示，另外视觉指示提供网络中流量级别的指示。

公开(公告)号：US07953155B2

公开(公告)日：2011-05-31

申请号：US11015374

申请日：2004-12-16

申请人： Mayer D. Schwartz

发明人： Mayer D. Schwartz

IPC分类号： H04N7/12

CPC分类号： H04N19/42 ,  H04N19/103 ,  H04N19/147 ,  H04N19/149 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

摘要： Information needed to generate an encoded version of a matrix of j transform coefficients c0 . . . cj−1 representing a block of digital video data is determined by forming a numerical signature σ of the matrix and looking up a value for the information needed in an array employing the signature σ as an index to the array.

摘要翻译： 生成j变换系数c0的矩阵的编码版本所需的信息。 。 。 表示数字视频数据块的cj-1通过形成数字签名＆sgr来确定; 并且查找使用签名＆sgr的数组中所需的信息的值; 作为数组的索引。

公开(公告)号：US20080212598A1

公开(公告)日：2008-09-04

申请号：US11956640

申请日：2007-12-14

申请人： Raja Kolli ,  Garrett Mead ,  John Reister ,  Christopher J. Shaver ,  Wendell Sun ,  Mark Tiedeman

发明人： Raja Kolli ,  Garrett Mead ,  John Reister ,  Christopher J. Shaver ,  Wendell Sun ,  Mark Tiedeman

IPC分类号： H04L12/28

CPC分类号： H04L12/2856 ,  H04L12/2865 ,  H04L12/2887 ,  H04L12/289 ,  H04L29/12207 ,  H04L29/12933 ,  H04L61/20 ,  H04L61/6068

摘要： A transparent routing device disposed within an access network configured in accordance with one or more lower-layer protocols is disclosed herein. The device includes a set of subscriber-side ports. Each of the subscriber-side ports is associated with a plurality of virtual subscriber-side interfaces disposed to effectively terminate a corresponding plurality of subscriber-side connections with subscriber host devices served by the access network. The device further includes at least one network-side port through which communication occurs with an external network in accordance with a higher-layer protocol. A routing table is configured to establish a correspondence between network addresses of the subscriber host devices and the plurality of virtual subscriber-side interfaces. During operation of the device, packets received through the at least one network-side port are forwarded to corresponding ones of the virtual subscriber-side interfaces based upon network addresses of the packets.

公开(公告)号：US07251243B2

公开(公告)日：2007-07-31

申请号：US10063000

申请日：2002-01-30

申请人： Malcolm Herring

发明人： Malcolm Herring

IPC分类号： H04L12/28

CPC分类号： H04L12/2861 ,  H04L12/2856 ,  H04L63/08 ,  H04L63/10 ,  H04M11/062

摘要： A method of, and an apparatus for, providing broadband services to multiple remote units located at a client premise via a single communication line are provided. Authorization data is communicated from distribution equipment to the remote units and the authorization data authorizes one of the remote units to transmit data to the distribution equipment. The authorization data is included in a DSL frame and is sequentially changed thereby sequentially to authorize each remote unit one at a time to transmit data. The distribution equipment provides the authorization data in a control word of a frame header of a VDSL frame.

摘要翻译： 提供了一种用于经由单个通信线路提供位于客户端驻地的多个远程单元的宽带服务的方法和装置。 授权数据从分发设备传送到远程单元，授权数据授权其中一个远程单元向配电设备传输数据。 授权数据被包括在DSL帧中，并且顺次地依次改变，以一次一个授权每个远程单元来发送数据。 分发设备在VDSL帧的帧头的控制字中提供授权数据。

公开(公告)号：US07145912B1

公开(公告)日：2006-12-05

申请号：US09535676

申请日：2000-03-23

申请人： Mayer D. Schwartz ,  Ryan P. Hegar

发明人： Mayer D. Schwartz ,  Ryan P. Hegar

IPC分类号： H04L12/56

CPC分类号： H04N21/23655

摘要： A constant bit rate single program encoded transport stream is demultiplexed from a statistically multiplexed MPEG transport stream by separating a variable bit rate program from the multiplexed MPEG transport stream, loading the sequence of pictures that form the variable bit rate program into a smoothing buffer at a rate that does not exceed a desired constant bit rate and transferring the picture from the smoothing buffer at times indicated by decode time stamps associated with the pictures respectively. If a picture of the sequence becomes available no later than a specified amount of time prior to the picture's decode time stamp, then that picture is loaded into the smoothing buffer commencing the specified amount of time prior to the time indicated by the picture's decode time stamp. If a picture of the sequence becomes available later than the specified amount of time prior to the picture's decode time stamp, then that picture is loaded into the smoothing buffer as soon as possible.

摘要翻译： 通过从多路复用的MPEG传输流中分离可变比特率程序，将统计比特率单程序编码的传输流从统计复用的MPEG传输流解复用，将形成可变比特率程序的图像序列加载到平滑缓冲器 速率不超过期望的恒定比特率，并且在分别由与图片相关联的解码时间戳指示的时间从平滑缓冲器传送图像。 如果序列的图像在图像的解码时间戳之前不迟于指定的时间量可用，则该图像被加载到平滑缓冲器中，在图像的解码时间戳记指示的时间之前开始指定的时间量 。 如果序列的图像在图像的解码时间戳之前比指定的时间晚可用，则该图像被尽快地加载到平滑缓冲器中。