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21. 发明申请

US20020054649A1 Signal demodulation method and apparatus for reproducing data from received signal 失效
标题翻译：用于从接收信号再现数据的信号解调方法和装置
公开(公告)号：US20020054649A1
公开(公告)日：2002-05-09
申请号：US09985754
申请日：2001-11-06
发明人： Yoshiro Kokuryo , Kunihiko Kondo , Hiroyuki Ando , Nobuo Hirose
IPC分类号： H03K005/159 , H04L027/04 , H04L027/12 , H04L027/20 , H04L027/08
CPC分类号： H04W52/52 , H03D3/007 , H04L25/03133 , H04L27/3809 , H04L2025/0342 , H04L2025/03477 , H04L2025/0377
摘要： A demodulation method, and apparatus, for reproducing data from a received signal. The demodulation method includes the steps of: receiving a signal including a series of frames each containing a training signal for automatic equalization processing and a data signal; controlling an amplitude of the received signal by AGC processing so as to make the amplitude a predetermined level; conducting demodulation processing on the signal subjected to the AGC processing; periodically conducting automatic equalization processing so as to adapt the modulated signal to characteristics of the signal transmission path based on each training signal of the frame; and setting values of a time constant of the AGC processing and an update repetition period of the automatic equalization processing so as to satisfy a predetermined relation.
摘要翻译：一种用于从接收信号再现数据的解调方法和装置。解调方法包括以下步骤：接收包括一系列帧的信号，每个帧包含用于自动均衡处理的训练信号和数据信号; 通过AGC处理来控制接收信号的幅度，使幅度达到预定的水平; 对经过AGC处理的信号进行解调处理; 定期进行自动均衡处理，以便根据帧的每个训练信号使调制信号适应信号传输路径的特性; 以及设定AGC处理的时间常数和自动均衡处理的更新重复周期的值，以满足预定的关系。

22. 发明申请

US20020034260A1 Adaptive predistortion transmitter 审中-公开
标题翻译：自适应预失真发射机
公开(公告)号：US20020034260A1
公开(公告)日：2002-03-21
申请号：US09951527
申请日：2001-09-14
申请人： LG Electronics Inc.
发明人： Wang Rae Kim
IPC分类号： H04L025/03 , H04L027/04 , H04K001/02 , H04L027/12 , H04L025/49 , H04L027/20
CPC分类号： H03F1/3247 , H04L27/368
摘要： An adaptive predistortion transmitter is disclosed. The transmitter includes a predistortion unit that distorts a digital input signal to have a non-linear characteristic opposite to that of the whole transmitter. A radio frequency converter converts an output signal of the predistortion unit into a radio frequency signal and an HPA amplifies the radio frequency converter. An error detector detects a non-linear characteristic change of the whole transmitter, by comparing the digital input signal and the output signal of the HPA, and controls an operation of the predistortion unit. The predistortion unit is implemented in consideration of the non-linear characteristic of the whole transmitter, including the up-converter and the HPA. Thus, the non-linear characteristic of the transmitter can be effectively improved. In addition, since the predistortion unit and a direct IF up-converter are implemented in one chip, the design structure of the whole transmitter can be simplified.
摘要翻译：公开了一种自适应预失真发射机。发射机包括预失真单元，其将数字输入信号扭曲成具有与整个发射机相反的非线性特征。无线电频率转换器将预失真单元的输出信号转换成射频信号，并且HPA对无线电频率转换器进行放大。误差检测器通过比较数字输入信号和HPA的输出信号来检测整个发射机的非线性特性变化，并控制预失真单元的操作。考虑到整个发射机的非线性特性，包括上变频器和HPA，实现了预失真单元。因此，可以有效地提高发射机的非线性特性。此外，由于预失真单元和直接IF上变频器都在一个芯片中实现，因此可以简化整个发射机的设计结构。

23. 发明申请

US20020012386A1 Method and apparatus for the construction and transmission of binary quasi orthogonal vectors 审中-公开
标题翻译：二进制准正交向量的构建和传输的方法和装置
公开(公告)号：US20020012386A1
公开(公告)日：2002-01-31
申请号：US09922391
申请日：2001-08-03
发明人： Abhijit G. Shanbhag
IPC分类号： H04L027/04 , H04L027/12 , H04L027/20
CPC分类号： H04J13/105 , H04J13/0025 , H04J13/004
摘要： A transmission method in a communications system having an orthogonal code vector for transmitting message signals. A first vector matrix is formed using a first series of cyclic shifts of a sequence having a characteristic polynomial wherein the characteristic polynomial of the sequence is a primitive polynomial having a degree r. A second vector matrix is formed using a second series of cyclic shifts in accordance with whether r is odd or even. The first vector matrix is permuted to provide an orthogonal code. The permuting operations are determined. The determined permuting operations are applied to the second matrix to provide a binary quasi orthogonal code vector. The binary quasi orthogonal code vector is applied to a message signal to provide an encoded message signal for transmission in the communications system.
摘要翻译：具有用于发送消息信号的正交码矢量的通信系统中的传输方法。使用具有特征多项式的序列的第一系列循环移位形成第一向量矩阵，其中该序列的特征多项式是具有度r的原始多项式。根据r是奇数还是偶数，使用第二系列循环移位形成第二向量矩阵。将第一矢量矩阵置换以提供正交码。确定排列操作。将确定的置换操作应用于第二矩阵以提供二进制准正交码矢量。将二进制准正交码向量应用于消息信号以提供用于在通信系统中传输的编码消息信号。

24. 发明申请

US20020009158A1 Method and apparatus for dynamic spectrum allocation 有权
标题翻译：动态频谱分配的方法和装置
公开(公告)号：US20020009158A1
公开(公告)日：2002-01-24
申请号：US09967282
申请日：2001-09-28
发明人： Slim Souissi , Edgar Herbert Callaway JR.
IPC分类号： H04L027/04 , H04L027/12 , H04L027/20 , H04L027/06
CPC分类号： H04W72/0453 , H04L5/0007 , H04L5/0033 , H04L5/0044 , H04L5/0062 , H04L27/0006
摘要： A transceiver device (52 or 10) operates as a source of a data transmission in a communication system (50) capable of dynamically allocating spectrum for transmission of the data transmission between the transceiver device (52) and a second transceiver device (51). The transceiver device (10) includes a transmitter, a receiver coupled to the transmitter and a processor or controller (12) coupled to the transmitter and receiver. The transceiver device is programmed to monitor the spectrum (channels 1-13 of FIG. 3) to determine if a portion (channels 4-8 for example in time slot 8) of the spectrum is available. The transceiver determines what portion of the spectrum is desired for data transmission and then transmits (see time slots 11 and 13) the data transmission within a dynamically selected portion of the available spectrum.
摘要翻译：收发器设备（52或10）在能够动态地分配频谱以在收发器设备（52）和第二收发器设备（51）之间的数据传输的传输的通信系统（50）中作为数据传输的来源进行操作。收发器设备（10）包括发射机，耦合到发射机的接收机和耦合到发射机和接收机的处理器或控制器（12）。收发器装置被编程以监视频谱（图3的信道1-13）以确定频谱中的一部分（例如时隙8中的信道4-8）是否可用。收发信机确定频谱的哪些部分是数据传输所需的，然后在可用频谱的动态选择部分内传输（见时隙11和13）数据传输。

25. 发明申请

US20010053188A1 Transmitting circuit and method thereof, receiving circuit and method thereof, and data communication apparatus 失效
标题翻译：发送电路及其方法，接收电路及其方法以及数据通信装置
公开(公告)号：US20010053188A1
公开(公告)日：2001-12-20
申请号：US09824969
申请日：2001-04-03
发明人： Ichiro Kumata
IPC分类号： H04L027/04 , H04L027/12 , H04L027/20
CPC分类号： H04L7/02 , H03M9/00 , H04L7/0008 , H04L7/0066
摘要： A method of frame synchronization serial data transmission. A transmitting circuit in a data communication apparatus converts frame data into serial data and transmit the same, and following the serial data, the transmitting circuit transmits frame synchronization data varying several times in the interval from an edge of a clock signal to an edge of the next clock signal; a receiving circuit receives the frame data and detects twice or more variations in the same interval to find out the end of the frame data, by receiving the serial data from a signal lines, serial data is transmitted while carrying out frame synchronization.
摘要翻译：一种帧同步串行数据传输的方法。数据通信装置中的发送电路将帧数据转换为串行数据并进行发送，并且在串行数据之后，发送电路发送在从时钟信号的边缘到边缘的间隔中变化多次的帧同步数据下一个时钟信号; 接收电路通过从信号线接收串行数据，接收帧数据并检测相同间隔中的两次或更多变化以找出帧数据的结束，同时在执行帧同步的同时发送串行数据。

26. 发明申请

US20040218690A1 Space-time coding method and apparatus in a mobile communication system 有权
标题翻译：移动通信系统中的时空编码方法和装置
公开(公告)号：US20040218690A1
公开(公告)日：2004-11-04
申请号：US10838005
申请日：2004-05-03
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Hong-Sil Jeong , Sung-Eun Park , Jae-Yoel Kim
IPC分类号： H04L027/04 , H04L027/12 , H04L027/20
CPC分类号： H04L1/0066 , H04L1/0618 , H04L1/1819 , H04L25/0204
摘要： Disclosed is a space-time coding apparatus in a mobile communication system. The space-time coding apparatus includes a de-mapper for converting a non-binary symbol into a stream of mnulla binary bits, and transmits the stream of binary bits output from the de-mapper via a plurality of antennas. The number of the antennas is m, and a distributor separately distributes the mnulla binary bits to the m antennas.
摘要翻译：公开了一种移动通信系统中的时空编码装置。时空编码装置包括：解映射器，用于将非二进制符号转换为m×二进制位流，并且通过多个天线发送从解映射器输出的二进制位流。天线的数量是m，分配器分别将m×m个二进制位分配给m个天线。

27. 发明申请

US20040202255A1 Dual polarity coding system and method for a millimeter wave communication system 失效
标题翻译：一种毫米波通信系统的双极性编码系统及方法
公开(公告)号：US20040202255A1
公开(公告)日：2004-10-14
申请号：US10412328
申请日：2003-04-14
申请人： MILLIMETRIX BROADBAND NETWORKS LTD.
发明人： Yeheskal Dallal
IPC分类号： H04L027/20
CPC分类号： H04B5/02
摘要： A method and system for efficient dual polarity transmission of a millimeter wave data stream of overall rate RfixednullRvarnullRMAC through two channels of polarities H and V. The method comprises the steps of determining asymmetric H and V transmission powers such that the overall rate RfixednullRvarnullRMAC is maximized, determining asymmetric nullH and nullV spectral efficiencies according to the asymmetric H and V transmission powers, and determining asymmetric coding and interleaving parameters related to the asymmetric nullH and nullV spectral efficiencies.
摘要翻译：一种用于通过两个极性H和V的通道的总体速率Rfixed + Rvar + RMAC的毫米波数据流的有效双极性传输的方法和系统。该方法包括确定不对称H和V传输功率的步骤，使得总速率 Rfixed + Rvar + RMAC最大化，根据不对称H和V传输功率确定不对称etaH和etaV光谱效率，并确定与不对称etaH和etaV光谱效率相关的不对称编码和交织参数。

28. 发明申请

US20040042560A1 Space-time coding digital transmission systems and methods 失效
公开(公告)号：US20040042560A1
公开(公告)日：2004-03-04
申请号：US10312179
申请日：2002-12-24
发明人： Anne Ferreol , Hugues Balp
IPC分类号： H04L027/20
CPC分类号： H04L1/0618 , H04B7/0669 , H04B7/0848
摘要： The invention concerns digital signal transmission. In particular, it concerns high speed transmission using layered space-time encoding architecture adapted to all types of propagation channels. The invention therefore proposes a digital signal transmission system comprising: a space-time encoder (1) receiving a flow of data to be transmitted dnullinull, formatting this data dnullinull as symbol vectors vnullknull of dimension P (P>1) and generating said symbol vectors vnullknull, and modulator-transmitters null2pnull(1nullpnullP), each receiving one component of the symbol vector mnullknull output from the space-time encoder (1), applying the constellation of a predetermined modulation to said symbol mpnullknull, and converting the symbol obtained apnullknull into a signal sp(t) presenting time diversity transmitted on said antenna (24p) connected to said transmitter (2p). To demodulate in parallel the Q signals of the space-time observation 1 y _ null [ k ] = null j = 0 J - 1 null null null H y null ( jTs ) null a _ null [ k - j ] + b _ y null [ k ] where anullknull is the symbol vector transmitted at instant tnullkTsnulli, Hy(t) the transfer function taking into account at least the transmission-reception, modulation, channel filters and the transmission-reception antenna gains and by(t) the noise, the invention proposes a two dimensional suitable estimator-demodulator.

29. 发明申请

US20040008737A1 Communication system 有权
标题翻译：通讯系统
公开(公告)号：US20040008737A1
公开(公告)日：2004-01-15
申请号：US10194775
申请日：2002-07-10
发明人： Brett Anthony McClellan
IPC分类号： H04J003/04 , H04L027/20 , H04L027/22
CPC分类号： H04L1/006 , H03M13/256 , H04L1/0041 , H04L1/0071 , H04L25/03343
摘要： A method and apparatus is disclosed for facilitating high-speed data communication. In one embodiment a receiver is configured to include error correction coding in an interleaved environment to increase data transmission rates. In one embodiment the signal mapping scheme includes constellation shaping to reduce transmit power levels. In one embodiment 8-state Ungerboeck trellis coding is implemented with 4-dimensional PAM10 signal mapping.
摘要翻译：公开了一种便于高速数据通信的方法和装置。在一个实施例中，接收机被配置为在交错环境中包括纠错编码以增加数据传输速率。在一个实施例中，信号映射方案包括星座整形以降低发射功率电平。在一个实施例中，使用4维PAM10信号映射来实现8状态Ungerboeck格状编码。

30. 发明申请

US20030147471A1 Cross correlated trellis coded quatrature modulation transmitter and system 审中-公开
标题翻译：交叉相关网格编码的质量调制发射机和系统
公开(公告)号：US20030147471A1
公开(公告)日：2003-08-07
申请号：US09969267
申请日：2001-09-24
发明人： Marvin K. Simon , Tsun-Yee Yan
IPC分类号： H04L027/20 , H04L027/12 , H04L027/04
CPC分类号： H04L1/006 , H04L27/206
摘要： System of modulating information onto an arbitrary waveshape. The system trellis codes the modulation.
摘要翻译：将信息调制到任意波形的系统。系统网格编码调制。

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