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22 条记录 (耗时 0.019 秒)

    WDM optical communications networks and methods for provisioning
    1.
    发明授权
    WDM optical communications networks and methods for provisioning 失效
    WDM光通信网络和配置方法

    公开(公告)号：US06304349B1

    公开(公告)日：2001-10-16

    申请号：US09109250

    申请日：1998-06-30

    申请人： Murat Alanyali ,  Ender Ayanoglu

    发明人： Murat Alanyali ,  Ender Ayanoglu

    IPC分类号： H04B1000

    CPC分类号： H04Q11/0062 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0284 ,  H04Q2011/0039 ,  H04Q2011/0073 ,  H04Q2011/0086

    摘要： Methods for provisioning optical communications networks employing wavelength division multiplexing (WDM) technology provide for routing and wave-length assignment of a set of connection requests. Avoiding many of the pitfalls of exactly optimum solutions, the present heuristic methods provide much shorter execution times while providing near-optimum performance. Adaptations of the basic solutions provide design of restorable networks capable of handling a specified set of failures. This approach advantageously is based on considering all failures simultaneously, and performs better than solutions in which independent designs are developed for each failure. Networks designed using these methods store configuration information for primary network configurations and for one or more restoration networks. Upon startup or upon network failures, predetermined configuration directions are applied to wavelength selective cross-connects (WSXC) at each network node to establish (or reestablish) desired network node interconnections.

    摘要翻译： 提供使用波分复用（WDM）技术的光通信网络的方法提供一组连接请求的路由和波长分配。 避免许多精确解决方案的缺陷，目前的启发式方法提供了更短的执行时间，同时提供了近乎最佳的性能。 基本解决方案的修改提供了能够处理指定故障集的可恢复网络的设计。 该方法有利地基于同时考虑所有故障，并且比对于每个故障开发独立设计的解决方案更好。 使用这些方法设计的网络存储用于主要网络配置和一个或多个恢复网络的配置信息。 在启动或网络故障时，将预定的配置方向应用于每个网络节点处的波长选择性交叉连接（WSXC），以建立（或重新建立）期望的网络节点互连。

    Ghost cancellation of analog TV signals
    3.
    发明授权
    Ghost cancellation of analog TV signals 失效
    GHOST取消模拟电视信号

    公开(公告)号：US5119196A

    公开(公告)日：1992-06-02

    申请号：US542612

    申请日：1990-06-25

    申请人： Ender Ayanoglu ,  Israel Bar-David ,  Richard D. Gitlin ,  Chih-Lin I ,  Jack H. Winters

    发明人： Ender Ayanoglu ,  Israel Bar-David ,  Richard D. Gitlin ,  Chih-Lin I ,  Jack H. Winters

    IPC分类号： H04N5/21

    CPC分类号： H04N5/211

    摘要： Ghosts are canceled in received analog TV (for IDTV, EDTV, and HDTV) signals by utilizing the fact that there are short periods of time without the analog signals (the horizontal flyback interval between the lines) to process the received signal on a line-to-line basis using a finite impulse response (FIR) or an infinite impulse response (IIR) equalizer. This line-by-line processing (which can be implemented by periodic cleansing of the equalizer) overcomes the limitations of standard equalizers to allow for 40-50 dB of suppression of ghosts, even with nulls in the spectrum, as long as the ghost delay is less than the period of time without the analog signal. Furthermore, by using time inversion in combination with line-by-line processing, the stability problem of the conventional IIR equalizer is eliminated. The IIR equalizer may be implemented on a single digital integrated circuit. Alternatively, an FIR equalizer can be used which, although it may require multiple chips (i.e., more taps), can acquire and adapt to the ghosted channel more rapidly than an IIR equalizer. With line-by-line processing, FIR and IIR equalizers can eliminate any ghost with delays up to 11 .mu.sec in IDTV or EDTV. For larger delays, a standard IIR or FIR equalizer can be used as a preprocessor to eliminate small ghosts and an adaptive antenna can be used to eliminate large ghosts. Thus, with these techniques, the ghosting problem can be eliminated in all TV receivers.

    Method and apparatus for transmitting packetized data over a common communications channel
    6.
    发明授权
    Method and apparatus for transmitting packetized data over a common communications channel 失效
    用于通过公共通信信道发送分组化数据的方法和装置

    公开(公告)号：US6014385A

    公开(公告)日：2000-01-11

    申请号：US781968

    申请日：1996-12-28

    申请人： Ender Ayanoglu ,  Kai Yin Eng ,  Mark John Karol

    发明人： Ender Ayanoglu ,  Kai Yin Eng ,  Mark John Karol

    IPC分类号： H04J3/16 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04Q3/00 ,  H04Q11/04

    CPC分类号： H04L12/417 ,  H04L12/5602 ,  H04L2012/5672 ,  H04L2012/5679

    摘要： A telecommunications system capable of transmitting an N byte packet over a common communications channel by: temporally dividing the common communications channel into time slots that have a duration equal to ##EQU1## seconds, where i is a natural number greater than one, C is a constant and R is the transmission rate of the common communications channel in bytes per second; splitting the N byte packet into i p-packets; preparing an M byte training sequence; and transmitting the M byte training sequence and the p-packets over the common communications channel in consecutive time slots.

    摘要翻译： 一种电信系统，其能够通过以下方式在公共通信信道上传输N字节分组：将公共通信信道暂时划分为具有等于秒的持续时间的时隙，其中i是大于1的自然数，C是常数，并且R 是公共通信信道的传输速率，单位为字节/秒; 将N字节分组分解成i个p分组; 准备一个M字节训练序列; 并且在连续的时隙中通过公共通信信道发送M字节训练序列和p分组。

    Media access control for MIMO wireless network
    7.
    发明授权
    Media access control for MIMO wireless network 有权
    MIMO无线网络的媒体访问控制

    公开(公告)号：US08625507B1

    公开(公告)日：2014-01-07

    申请号：US12932801

    申请日：2011-03-07

    申请人： Ozgur Gurbuz ,  David Pignatelli ,  David Stephenson ,  Eldad Perahia ,  Bretton Douglas ,  Ender Ayanoglu

    发明人： Ozgur Gurbuz ,  David Pignatelli ,  David Stephenson ,  Eldad Perahia ,  Bretton Douglas ,  Ender Ayanoglu

    IPC分类号： H04W4/00 ,  H04J3/16

    CPC分类号： H04B7/0689 ,  H04B7/0413 ,  H04B7/0628 ,  H04B7/0871 ,  H04W28/22 ,  H04W84/12

    摘要： An apparatus and method for operating a Multiple Input Multiple Output (MIMO)-capable subscriber node are disclosed. In one embodiment, an apparatus includes a MIMO-capable physical layer transceiver and a Medium Access Control (MAC) layer block that measures a received transmission to determine channel conditions. Upon receiving a transmission wherein said channel conditions meet specified conditions, the MAC layer block transmits a message to an access point indicating that the apparatus wants to switch between a non-MIMO mode and a MIMO mode, and upon receiving an acknowledgement, the MAC layer block switches between the non-MIMO mode and the MIMO mode. An apparatus for operating an access node is also disclosed.

    摘要翻译： 公开了一种用于操作多输入多输出（MIMO）能力的用户节点的装置和方法。 在一个实施例中，一种装置包括MIMO能力的物理层收发机和媒体接入控制（MAC）层块，其测量接收到的传输以确定信道状况。 在接收到所述信道条件满足指定条件的传输时，MAC层块向接入点发送指示设备在非MIMO模式和MIMO模式之间切换的消息，并且在接收到确认时，MAC层 在非MIMO模式和MIMO模式之间进行块切换。 还公开了一种用于操作接入节点的装置。

    Adaptive ARQ/FEC technique for multitone transmission
    8.
    发明授权
    Adaptive ARQ/FEC technique for multitone transmission 失效
    用于多音频传输的自适应ARQ / FEC技术

    公开(公告)号：US5719883A

    公开(公告)日：1998-02-17

    申请号：US310029

    申请日：1994-09-21

    申请人： Ender Ayanoglu

    发明人： Ender Ayanoglu

    IPC分类号： G06F11/10 ,  H04J1/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L27/26 ,  H03M13/00

    CPC分类号： H04L1/1671 ,  H04L1/0001 ,  H04L1/0065 ,  H04L1/1819 ,  H04L1/1893 ,  H04L27/2602

    摘要： Increased numbers of multipath transmission errors, that are detected by the performance of cyclic redundancy checking (CRC) over time and frequency on the words of a multitone transmission block that include mapped information bits, are correctable by forward error control as a result of the iterative performance of CRC over frequency on subblocks of the transmission block using retransmitted parity checking bits. A continuous record is maintained of the frequency channels that are detected as experiencing transmission errors in order to maximize the rate of data bit transmission on frequency channels that are likely to experience a reduced number of transmission errors.

    摘要翻译： 通过随着时间和频率执行循环冗余校验（CRC）检测的多路径传输错误的增加，包括映射信息位的多音频传输块的字可以通过前向错误控制作为迭代的结果来校正 使用重传的奇偶校验位在传输块的子块上执行CRC对频率的性能。 维持经过传输错误的频道的连续记录，以便最大化可能经历减少的传输错误数的频道上的数据位传输速率。

    High speed quantization-level-sampling modem with equalization arrangement
    9.
    发明授权
    High speed quantization-level-sampling modem with equalization arrangement 失效
    具有均衡布置的高速量化级采样调制解调器

    公开(公告)号：US5528625A

    公开(公告)日：1996-06-18

    申请号：US176742

    申请日：1994-01-03

    申请人： Ender Ayanoglu ,  Glenn D. Golden ,  Raymond K. Jones ,  James E. Mazo ,  David G. Shaw

    发明人： Ender Ayanoglu ,  Glenn D. Golden ,  Raymond K. Jones ,  James E. Mazo ,  David G. Shaw

    IPC分类号： H03H21/00 ,  H04B3/04 ,  H04B14/04 ,  H04L25/49 ,  H04L5/16 ,  H03K7/02 ,  H04B1/38 ,  H04L27/02

    CPC分类号： H04L25/4927

    摘要： The present invention is a quantization-level-sampling (QLS) modem which includes means for separately equalizing each loop of an end-to-end digital telephone system network connection by employing a plurality of transmitter filters and a plurality of receiver filters in such a way that, in the direction of transmission from modem to central office, the voltage samples seen by the coder/decoder stations are equivalent to the network quantization levels transmitted by the modem, and in the direction of transmission from central office to modem, the voltage samples seen by the modem are equivalent to the network quantization levels encoded by the coder/decoder stations. The invention also includes a QLS modem communications system which includes the aforesaid digital telephone system network and a plurality of QLS modems. In preferred embodiments, an adaptation service unit within the telephone system network assists in the determination of the settings of the transmitter and receiver filters.

    摘要翻译： 本发明是量化级采样（QLS）调制解调器，其包括通过采用多个发射机滤波器和多个接收机滤波器来分别均衡端到端数字电话系统网络连接的每个环路的装置 在从调制解调器到中心局的传输方向上，由编码器/解码器站所看到的电压样本等同于由调制解调器发送的网络量化级别，并且在从中心局到调制解调器的传输方向上，电压 由调制解调器看到的样本等同于由编码器/解码器站编码的网络量化级。 本发明还包括一个包括上述数字电话系统网络和多个QLS调制解调器的QLS调制解调器通信系统。 在优选实施例中，电话系统网络内的适配服务单元有助于确定发射机和接收机滤波器的设置。

    Diversity coding for transparent self-healing communications networks
    10.
    发明授权
    Diversity coding for transparent self-healing communications networks 失效
    透明自愈通信网络的分集编码

    公开(公告)号：US5007067A

    公开(公告)日：1991-04-09

    申请号：US414874

    申请日：1989-09-29

    申请人： Ender Ayanoglu ,  Richard D. Gitlin ,  Chih-Lin I ,  James E. Mazo

    发明人： Ender Ayanoglu ,  Richard D. Gitlin ,  Chih-Lin I ,  James E. Mazo

    IPC分类号： H04L1/22 ,  H04L1/02 ,  H04L25/49

    CPC分类号： H04L1/02 ,  H04L25/4908

    摘要： This invention is a technique for the substantially instantaneous self-healing of digital communications networks. Digital data streams from each of N nearby sources are combined and encoded to produce N+M coded data streams using a coding algorithm. The N+M coded data streams are then each transmitted over a separate long haul communications link to a decoder where any N of the N+M coded data streams can be decoded uniquely to produce the original N data streams. The orginal N data streams are then distributed to their respective separate end destinations. If any M or less of the N+M long haul communications links fails, i.e. as in a telephone line that gets cut or a long distance switch that fails, no rerouting of traffic need be done. Rather, the receiver detects loss of carrier on the failed link(s), and immediately supplies the missing data by decoding the data from the at least N remaining links. The technique overcomes a long felt problem of trying to reroute traffic by using sophisticated resource allocation techniques when a communications link fails.