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

US5600663A Adaptive forward error correction system 失效
标题翻译：自适应前向纠错系统
公开(公告)号：US5600663A
公开(公告)日：1997-02-04
申请号：US340551
申请日：1994-11-16
申请人： Ender Ayanoglu , Richard D. Gitlin , Thomas F. La Porta , Sanjoy Paul , Krishan K. Sabnani
发明人： Ender Ayanoglu , Richard D. Gitlin , Thomas F. La Porta , Sanjoy Paul , Krishan K. Sabnani
IPC分类号： G06F11/10 , H03M13/35 , H04L1/00 , H04L1/18 , H03M13/00
CPC分类号： H04L1/0009 , H03M13/35 , H04L1/0026 , H04L1/1671 , H04L1/1819
摘要： A forward error correction system adaptively changes the number of parity bits, bytes or packets transmitted to a receiver, based on previous error patterns experienced recently in the reception of original and parity bits, bytes or packets by that receiver.
摘要翻译：基于在接收原始和奇偶校验位，字节或分组中最近遇到的先前错误模式，前向纠错系统自适应地改变发送到接收机的奇偶校验位，字节或分组的数量。

2. 发明授权

US5570367A Asymmetric protocol for wireless communications 失效
标题翻译：无线通信不对称协议
公开(公告)号：US5570367A
公开(公告)日：1996-10-29
申请号：US282254
申请日：1994-07-29
申请人： Ender Ayanoglu , Richard D. Gitlin , Thomas F. La Porta , Sanjoy Paul , Krishan K. Sabnani
发明人： Ender Ayanoglu , Richard D. Gitlin , Thomas F. La Porta , Sanjoy Paul , Krishan K. Sabnani
IPC分类号： H04L1/16 , H04L1/18 , H04L12/28 , H04L12/56 , H04L29/06 , H04W28/04 , H04W36/08 , H04W36/12 , H04W74/06 , H04W76/04 , H04W88/16 , H04W92/02 , H04W92/10 , H04W92/20 , H04J3/16
CPC分类号： H04W76/04 , H04L1/1607 , H04L1/1685 , H04L1/1848 , H04W36/08 , H04W36/12 , H04W74/06 , H04W88/16 , H04W92/02 , H04W92/10 , H04W92/20
摘要： A wireless communications system is arranged to provide data communications services, including error recovery, between at least one wireless end-user device and at least one one base station. The wireless end user device(s) receives(s) from the base station(s) unsolicited messages indicative of the status of data packets received by the base station(s). The wireless end-user device(s) transmit acknowledgement and request for retransmission messages only upon request, or when all the packets within a block of such packets have been received.
摘要翻译：无线通信系统被布置成在至少一个无线终端用户设备和至少一个基站之间提供包括错误恢复的数据通信服务。无线终端用户设备从基站接收指示由基站接收的数据分组的状态的非请求消息。无线终端用户设备仅在请求时发送确认和请求重传消息，或者当已经接收到这种分组的块内的所有分组时。

3. 发明授权

US5119196A Ghost cancellation of analog TV signals 失效
标题翻译： 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.

4. 发明授权

US5007067A Diversity coding for transparent self-healing communications networks 失效
标题翻译：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.

5. 发明授权

US5717689A Data link layer protocol for transport of ATM cells over a wireless link 失效
标题翻译：用于通过无线链路传送ATM信元的数据链路层协议
公开(公告)号：US5717689A
公开(公告)日：1998-02-10
申请号：US541985
申请日：1995-10-10
申请人： Ender Ayanoglu
发明人： Ender Ayanoglu
IPC分类号： H04B10/20 , H04J3/00 , H04L1/00 , H04L1/16 , H04L1/18 , H04L12/28 , H04L12/56 , H04L29/06 , H04Q7/38 , H04L12/54
CPC分类号： H04L69/16 , H04L1/0009 , H04L1/0025 , H04L1/0083 , H04L1/1614 , H04L1/1664 , H04L1/1809 , H04L1/1832 , H04L47/10 , H04L47/27 , H04L49/205 , H04L49/25 , H04L49/3081 , H04L49/557 , H04L69/168 , H04L69/169 , H04L1/1812 , H04L2012/5607 , H04L2012/5616 , H04L2012/5619 , H04L2012/563 , H04L2012/5647 , H04L2012/5652 , H04L49/3009
摘要： The present invention is a reliable data link layer protocol to transport ATM cells over a wireless point-to-point link. The protocol ensures that the cells are transported reliably by use of a sliding window transport mechanism with selective repeat automatic repeat request (ARQ) and forward error correction (FEC). The protocol minimizes ATM header overhead by means of header compression and provides per-cell FEC whose size can be changed adaptively. The protocol also provides parity cells for recovery from errors that cannot be corrected using the per-cell FEC field. The number of these cells as well as the size of a window or frame can also be adaptively changed. In addition, the window can be terminated to request an immediate acknowledgment.
摘要翻译：本发明是通过无线点对点链路传输ATM信元的可靠数据链路层协议。该协议确保通过使用具有选择性重复自动重复请求（ARQ）和前向纠错（FEC）的滑动窗口传输机制可靠地传送小区。该协议通过报头压缩来最大限度地减少ATM报头开销，并且提供可以自适应地改变其大小的每小区FEC。该协议还提供用于从不能使用每小区FEC字段校正的错误进行恢复的奇偶校验单元。这些单元的数量以及窗口或框架的大小也可以自适应地改变。此外，可以终止窗口以请求立即确认。

6. 发明授权

US08625507B1 Media access control for MIMO wireless network 有权
标题翻译： 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。

7. 发明授权

US5719883A Adaptive ARQ/FEC technique for multitone transmission 失效
标题翻译：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。

8. 发明授权

US5528625A High speed quantization-level-sampling modem with equalization arrangement 失效
标题翻译：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。

9. 发明授权

US07929412B1 Media access control for MIMO wireless network 有权
标题翻译： MIMO无线网络的媒体访问控制
公开(公告)号：US07929412B1
公开(公告)日：2011-04-19
申请号：US11974848
申请日：2007-10-16
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： H04J11/00 , H04L1/02 , 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 requests an access point for permission to switch between a non-MIMO mode and a MIMO mode, and upon receiving permission, 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。在接收到其中所述信道条件满足指定条件的传输时，MAC层块请求接入点以允许在非MIMO模式和MIMO模式之间切换，并且在接收到许可后，MAC层块在非MIMO 模式和MIMO模式。还公开了一种用于操作接入节点的装置。

10. 发明授权

US07567537B1 Point-to-point MAC protocol for high speed wireless bridging 有权
标题翻译：用于高速无线桥接的点到点MAC协议
公开(公告)号：US07567537B1
公开(公告)日：2009-07-28
申请号：US10207694
申请日：2002-07-29
申请人： Ozgur Gurbuz , Ender Ayanoglu , Robert Meier
发明人： Ozgur Gurbuz , Ender Ayanoglu , Robert Meier
IPC分类号： H04Q7/24 , H04L12/413
CPC分类号： H04L12/413
摘要： Systems and methods for improving throughput in point-to-point wireless communication links are provided. In one particular implementation, a media access control (MAC) layer of the IEEE 802.11 standard is enhanced for use in point-to-point links to take advantage of the limited number of nodes participating in the link. In one embodiment, a master/slave type protocol provides contention free operation between two wireless nodes. Multiple priority levels and voice traffic may be accommodated with guaranteed Quality of Service.
摘要翻译：提供了用于提高点对点无线通信链路中吞吐量的系统和方法。在一个特定实现中，IEEE 802.11标准的媒体接入控制（MAC）层被增强以用于点对点链路以利用参与链路的有限数量的节点。在一个实施例中，主/从类型协议在两个无线节点之间提供无竞争的操作。可以在保证服务质量的情况下容纳多个优先级和语音流量。

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