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31. 发明申请

US20060104196A1 Adaptive time diversity and spatial diversity for OFDM 有权
公开(公告)号：US20060104196A1
公开(公告)日：2006-05-18
申请号：US11315056
申请日：2005-12-22
申请人： Shiquan Wu , Wen Tong , Leo Strawczynski
发明人： Shiquan Wu , Wen Tong , Leo Strawczynski
IPC分类号： H04J11/00
CPC分类号： H04B7/068 , H04B7/0417 , H04B7/063 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04B7/0891 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0625 , H04L1/0631 , H04L1/0662 , H04L1/0675 , H04L5/0007 , H04L5/0023 , H04L5/0025 , H04L5/0026 , H04L5/0046 , H04L5/006 , H04L27/0008 , H04L27/2604 , H04L27/2628 , H04L27/2646 , H04L27/2647
摘要： An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.

32. 发明申请

US20050237994A1 Dual protocol layer automatic retransmission request scheme for wireless air interface 有权
标题翻译：无线空中接口双协议层自动重传请求方案
公开(公告)号：US20050237994A1
公开(公告)日：2005-10-27
申请号：US11168835
申请日：2005-06-28
申请人： Mo-Han Fong , Leo Strawczynski , Geng Wu , Wen Tong
发明人： Mo-Han Fong , Leo Strawczynski , Geng Wu , Wen Tong
IPC分类号： H04L1/00 , H04L1/12 , H04L1/16 , H04L1/18 , H04J3/24
CPC分类号： H04L1/188 , H04L1/16 , H04L1/1671 , H04L1/1803 , H04L1/1809 , H04L1/1812 , H04L1/1848 , H04L1/1861 , H04L1/1877 , H04L2001/125 , Y10S370/913
摘要： A base station, mobile station, and/or other terminal device includes physical layer (layer 1) protocol and link layer (layer 2) protocol that both include automatic retransmission request (ARQ) operations. The physical layer and link layer include enhancements that interact with one another to cause the link layer to inhibit ARQ operations while error recovery operations are pending at the physical layer. A transmitter packages link layer packet data units into physical layer frames and transmits the physical layer frames. A receiver responds to indicate either successful or unsuccessful transmission. The transmitting physical layer waits for the response and initiates error recovery operations when required. The receiving link layer, when it detects lost data packets, inhibits its ARQ operations to allow physical layer error recovery operations to complete.
摘要翻译：基站，移动站和/或其他终端设备包括物理层（层1）协议和链路层（层2）协议，它们都包括自动重传请求（ARQ）操作。物理层和链路层包括彼此交互的增强功能，以使得链路层能够在物理层处理错误恢复操作时阻止ARQ操作。发射机将链路层分组数据单元封装成物理层帧并传输物理层帧。接收机响应以指示传输成功或不成功。发送物理层等待响应，并在需要时启动错误恢复操作。接收链路层当检测到丢失的数据包时，禁止其ARQ操作，以允许物理层错误恢复操作完成。

33. 发明授权

US06618430B1 Methods and apparatus for receiving N-chip resistant codes 有权
标题翻译：接收N芯片抗码的方法和装置
公开(公告)号：US06618430B1
公开(公告)日：2003-09-09
申请号：US09211096
申请日：1998-12-14
申请人： Farideh Khaleghi , Norman P. Secord , Leo Strawczynski
发明人： Farideh Khaleghi , Norman P. Secord , Leo Strawczynski
IPC分类号： H04B169
CPC分类号： H04B1/7115 , H04B1/7183 , H04B2201/709709 , H04J13/10
摘要： The invention relates to systems and methods for receiving signals modulated with a carrier frequency, wherein the signals include spreading chip sequences having at least one zero. The invention includes a method of receiving and despreading spread spectrum signals wherein the spread spectrum signals include spreading chip sequences having at least one zero and at least one non-zero chip. The method includes receiving and sampling a spread spectrum communication signal. The receiver generates a despreading code which is synchronized with the sampled spread spectrum communication signal. The sampled spread spectrum communication signal is then despread with the despreading code by omitting at least one operation involving at least one zero chip. The invention further includes a receiver configured to receive signals modulated with a carrier frequency over a channel, wherein the signals include spreading chip sequences having at least one zero. The receiver includes an antenna capable of receiving a spread spectrum communication signal. It also includes a despreading code generator connected to the antenna. The receiver includes a demodulator connected to the antenna and configured to separate the carrier frequency from the spread spectrum communication signal. It also includes a searcher connected to the demodulator and configured to synchronize a despreading code generated by the despreading code generator with the spread spectrum communication signal. The receiver also includes a Rake receiver connected to the demodulator, configured to despread the separated spread spectrum communication signal and to omit at least one operation involving at least one zero chip.
摘要翻译：本发明涉及用于接收用载波频率调制的信号的系统和方法，其中信号包括具有至少一个零的扩展码片序列。本发明包括一种接收和解扩扩频信号的方法，其中扩频信号包括具有至少一个零和至少一个非零芯片的扩展码片序列。该方法包括对扩展频谱通信信号进行接收和采样。接收机产生与采样扩频通信信号同步的解扩码。然后，通过省略至少一个涉及至少一个零芯片的操作，利用解扩码对采样扩频通信信号进行解扩。本发明还包括被配置为接收通过信道以载波频率调制的信号的接收机，其中所述信号包括具有至少一个零的扩展码片序列。接收机包括能够接收扩展频谱通信信号的天线。它还包括连接到天线的解扩码生成器。接收机包括连接到天线的解调器，并被配置为将载波频率与扩展频谱通信信号分开。它还包括连接到解调器并被配置为使由解扩码产生器产生的解扩码与扩频通信信号同步的搜索器。接收机还包括连接到解调器的Rake接收机，被配置为对分离的扩频通信信号进行解扩，并且省略涉及至少一个零芯片的至少一个操作。

34. 发明授权

US6006189A Method and apparatus for storing and forwarding voice signals 失效
标题翻译：用于存储和转发语音信号的方法和装置
公开(公告)号：US6006189A
公开(公告)日：1999-12-21
申请号：US948418
申请日：1997-10-10
申请人： Leo Strawczynski , Bill (W.A.) Gage
发明人： Leo Strawczynski , Bill (W.A.) Gage
IPC分类号： G10L19/14 , H04M3/40 , H04M3/533 , H04M7/00 , H04W4/12 , H04W88/18 , G10L3/00
CPC分类号： H04W88/181 , G10L19/16 , H04M3/40 , H04M3/533 , H04M7/1235 , H04M7/1275 , H04W4/12
摘要： In recent years, the telecommunications industry has witnessed the proliferation of a variety of digital vocoders in order to meet bandwidth demands of different wireline and wireless communication systems. The rapid growth in the diversity of networks and the number of users of such networks is increasing the number of instances where two vocoders are placed in tandem to serve a single connection. Such arrangements of low bit-rate codecs can degrade the quality of the transmitted speech. To overcome this problem in the specific situation involving store-and-forward systems (e.g. voicemail), the invention provides a novel method and apparatus including a plurality of different vocoders that can be selectively invoked to process the voice signal so as to reduce signal degradation. Also, the apparatus has the capability to bypass the vocoder bank when exchanging data with a remote signal processor capable of accepting data frames in compressed format.
摘要翻译：近年来，电讯业目睹了各种数字声码器的扩散，以满足不同有线和无线通讯系统的带宽需求。网络的多样性的快速增长和这种网络的用户数量正在增加两个声码器串联放置以服务于单个连接的情况的数量。低比特率编解码器的这种布置可能会降低发送语音的质量。为了在涉及存储转发系统（例如语音邮件）的具体情况下克服这个问题，本发明提供了一种新颖的方法和装置，其包括可以选择性地调用多个不同的声码器来处理语音信号，以便降低信号劣化。此外，当与能够接受压缩格式的数据帧的远程信号处理器交换数据时，该装置具有绕过声码器组的能力。

35. 发明授权

US07894721B2 Control of parameters in a global optical controller 有权
标题翻译：控制全局光控制器中的参数
公开(公告)号：US07894721B2
公开(公告)日：2011-02-22
申请号：US11533166
申请日：2006-09-19
申请人： Kim B. Roberts , Genzao G. Zhang , James Harley , Feng Shi , Leo Strawczynski
发明人： Kim B. Roberts , Genzao G. Zhang , James Harley , Feng Shi , Leo Strawczynski
IPC分类号： H04B10/08 , H04B17/00
CPC分类号： H04J14/0227 , H04B10/0793 , H04J14/0201 , H04J14/0221 , H04J14/0246 , H04J14/0279
摘要： An optical network system having a global controller capable of controlling all the elements of the network. The controller receives performance data from each optical network element and calculates a performance value for each channel transmitting through the system. The controller then isolates the channel with the minimum performance value and tests possible changes in network element parameters to find a change which would increase this performance value. Once such a change is found, it is implemented and the system is reoptimized.
摘要翻译：一种具有能够控制网络的所有元素的全局控制器的光网络系统。控制器从每个光网络元件接收性能数据，并计算通过系统传输的每个通道的性能值。然后，控制器将通道与最小性能值隔离，并测试网元参数的可能变化，以找到会增加此性能值的更改。一旦发现了这样的变化，就会实现这一改变，系统被重新优化。

36. 发明授权

US07801019B2 Adaptive time diversity and spatial diversity for OFDM 有权
公开(公告)号：US07801019B2
公开(公告)日：2010-09-21
申请号：US11582663
申请日：2006-10-17
申请人： Shiquan Wu , Wen Tong , Leo Strawczynski
发明人： Shiquan Wu , Wen Tong , Leo Strawczynski
IPC分类号： H04J11/00
CPC分类号： H04B7/068 , H04B7/0417 , H04B7/063 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04B7/0891 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0625 , H04L1/0631 , H04L1/0662 , H04L1/0675 , H04L5/0007 , H04L5/0023 , H04L5/0025 , H04L5/0026 , H04L5/0046 , H04L5/006 , H04L27/0008 , H04L27/2604 , H04L27/2628 , H04L27/2646 , H04L27/2647
摘要： An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.

37. 发明授权

US07756421B2 Electrical domain compensation of non-linear effects in an optical communications system 有权
标题翻译：光通信系统中非线性效应的电域补偿
公开(公告)号：US07756421B2
公开(公告)日：2010-07-13
申请号：US10405236
申请日：2003-04-03
申请人： Kim B. Roberts , Leo Strawczynski , Maurice S. O'Sullivan
发明人： Kim B. Roberts , Leo Strawczynski , Maurice S. O'Sullivan
IPC分类号： H04B10/00
CPC分类号： H04B10/2543
摘要： Nonlinearity-induced signal distortions are compensated by processing an input communications signal, in the electrical domain prior to Electrical-to-optical conversion and transmission through an optical link of a communications system. According to the invention, a compensation operator is determined that substantially mitigates the nonlinearity-induced signal distortions imparted to an optical signal traversing the communications system. The input communications signal is then input to the compensation operator to generate a predistorted electrical signal. This predistorted electrical signal is then used to modulate an optical source to generate a corresponding predistorted optical signal for transmission through the optical communications system. With this arrangement, arbitrary nonlinearity-induced signal distortions imparted by the optical link can be compensated in such a manner that a comparatively undistorted optical signal is obtained at the receiving end of the optical link.
摘要翻译：在通过通信系统的光链路的电 - 光转换和传输之前，通过处理电域中的输入通信信号来补偿非线性引起的信号失真。根据本发明，确定补偿算子，其基本上减轻施加到穿过通信系统的光信号的非线性引起的信号失真。然后将输入通信信号输入到补偿操作器以产生预失真的电信号。然后，该预失真的电信号用于调制光源以产生用于通过光通信系统传输的相应的预失真光信号。通过这种布置，可以以在光链路的接收端获得相对不失真的光信号的方式来补偿由光链路赋予的任意非线性引起的信号失真。

38. 发明授权

US07688710B2 Adaptive time diversity and spatial diversity for OFDM 有权
标题翻译： OFDM的自适应时间分集和空间分集
公开(公告)号：US07688710B2
公开(公告)日：2010-03-30
申请号：US11899860
申请日：2007-09-07
申请人： Shiquan Wu , Wen Tong , Leo Strawczynski
发明人： Shiquan Wu , Wen Tong , Leo Strawczynski
IPC分类号： H04J11/00
CPC分类号： H04B7/068 , H04B7/0417 , H04B7/063 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04B7/0891 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0625 , H04L1/0631 , H04L1/0662 , H04L1/0675 , H04L5/0007 , H04L5/0023 , H04L5/0025 , H04L5/0026 , H04L5/0046 , H04L5/006 , H04L27/0008 , H04L27/2604 , H04L27/2628 , H04L27/2646 , H04L27/2647
摘要： An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.
摘要翻译：一种适应性正交频分复用系统（OFDM），其使用多输入多输出（MIMO）来具有根据时间分集发送的OFDM信号以减少信号衰落或者根据空间分集来增加数据速率。基于阈值与三个标准中的至少一个的比较的结果，将子载波分类为空间分集发送或时间分集发送。标准包括计算频道响应矩阵的最小本征值和矩阵的对角线的最小元素以及矩阵的最大和最小本征值的比率。

39. 发明授权

US07382984B2 Electrical domain compensation of optical dispersion in an optical communications system 有权
标题翻译：光通信系统中光散射的电域补偿
公开(公告)号：US07382984B2
公开(公告)日：2008-06-03
申请号：US10262944
申请日：2002-10-03
申请人： John McNicol , Kieran Parsons , Leo Strawczynski , Kim B. Roberts
发明人： John McNicol , Kieran Parsons , Leo Strawczynski , Kim B. Roberts
IPC分类号： H04B10/12 , H04B10/00 , H04B10/04
CPC分类号： H04B10/07951 , H04B10/07953 , H04B10/25137 , H04B10/505 , H04B10/50597 , H04B10/508 , H04B10/6161
摘要： Optical dispersion imposed on a communications signal conveyed through an optical communications system is compensated by modulating the communications signal in the electrical domain. A compensation function is determined that substantially mitigates the chromatic dispersion. The communications signal is then modulated in the electrical domain using the compensation function. Electrical domain compensation can be implemented in either the transmitter or the receiver end of the communications system. In preferred embodiments, compensation is implemented in the transmitter, using a look-up-table and digital-to-analog converter to generate an electrical predistorted signal. The electrical predistorted signal is then used to modulate an optical source to generate a corresponding predistorted optical signal for transmission through the optical communications system.
摘要翻译：施加在通过光通信系统传送的通信信号上的光色散通过调制电域中的通信信号来补偿。确定基本上减轻色散的补偿功能。然后使用补偿功能在电域中调制通信信号。可以在通信系统的发射机或接收机端实现电域补偿。在优选实施例中，使用查找表和数模转换器来在发射机中实现补偿以产生电预失真信号。然后，电预失真信号用于调制光源以产生用于通过光通信系统传输的相应的预失真光信号。

40. 发明申请

US20060007883A1 Multi-carrier arrangement for high speed data 有权
标题翻译：用于高速数据的多载波布置
公开(公告)号：US20060007883A1
公开(公告)日：2006-01-12
申请号：US11194293
申请日：2005-08-01
申请人： Wen Tong , Leo Strawczynski , Shalini Periyalwar , Claude Royer
发明人： Wen Tong , Leo Strawczynski , Shalini Periyalwar , Claude Royer
IPC分类号： H04Q7/00
CPC分类号： H04L1/0022 , H04B7/2656 , H04J3/1682 , H04L1/0002 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0017 , H04L1/0025 , H04L1/0026 , H04L1/0059 , H04L1/0066 , H04L1/0068 , H04L1/007 , H04L1/0071 , H04L1/08 , H04L1/20 , H04L5/06 , H04L45/00 , H04W24/00 , H04W24/10 , H04W28/22 , H04W72/04 , H04W72/0446 , H04W72/0453 , H04W72/1263 , H04W88/08 , H04W99/00
摘要： The system and method of the present invention uses a plurality of carriers by assigning user terminals to the plurality of carriers so that a minimum grade of service is met and so that throughput is maximized. Each serviced user terminal reports the channel quality of each of a plurality of carriers to a servicing base station(s). The reported channel qualities are then converted to maximum supported data rates for each of the user terminals and each of the carriers. These data rates are then used to allocate data service levels and data rates for each of the user terminals so that a minimum grade of service is met for each of the user terminals. Forward link transmissions, e.g., frames/data packets carried on forward channels (F-CHs), are then constructed and transmitted to meet the allocations.
摘要翻译：本发明的系统和方法通过将用户终端分配给多个载波来使用多个载波，使得满足最低等级的服务，并且使吞吐量最大化。每个服务用户终端向服务基站报告多个载波中的每一个的信道质量。然后将报告的信道质量转换为每个用户终端和每个载波的最大支持的数据速率。然后，这些数据速率用于为每个用户终端分配数据服务级别和数据速率，使得每个用户终端满足最低等级的服务。然后构造和发送前向链路传输，例如在前向信道（F-CH）上承载的帧/数据分组，以满足分配。

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