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6 条记录 (耗时 0.014 秒)

    Detecting a data frame
    1.
    发明申请
    Detecting a data frame 有权
    检测数据帧

    公开(公告)号：US20070104297A1

    公开(公告)日：2007-05-10

    申请号：US11267537

    申请日：2005-11-04

    申请人： Robert Gorday

    发明人： Robert Gorday

    IPC分类号： H04L27/06 ,  H04B1/00

    CPC分类号： H04B1/707 ,  H04B1/7095

    摘要： A detector (109) and corresponding method is configured for detecting presence of a data frame. The detector includes a first correlator (123) that is configured to provide a first plurality of correlations corresponding to similarity between data as received and first information, e.g., an ordered set of coefficients, that denotes the data frame and a second correlator (125) that is configured to provide a second plurality of correlations corresponding to similarity between the data as received and second information, e.g., another ordered set of coefficients, that denotes the data frame, where the second information includes a portion of the first information. Further included is decision logic (129) coupled to the first correlator and the second correlator, where the decision logic is configured to provide an indication (111) that the data frame is present based on the first plurality of correlations and the second plurality of correlations.

    摘要翻译： 检测器（109）和相应的方法被配置用于检测数据帧的存在。 检测器包括第一相关器（123），其被配置为提供对应于接收的数据与第一信息（例如，表示数据帧的有序系数集合）和第二相关器（125）之间的相似性的第一多个相关性， 被配置为提供对应于所接收的数据与第二信息之间的相似性的第二多个相关性，例如表示数据帧的另一有序系数集合，其中第二信息包括第一信息的一部分。 还包括耦合到第一相关器和第二相关器的判决逻辑（129），其中判定逻辑被配置为基于第一多个相关性和第二多个相关性来提供数据帧存在的指示（111） 。

    Method and apparatus for time-sharing a rake receiver structure
    2.
    发明授权
    Method and apparatus for time-sharing a rake receiver structure 失效
    分离耙式接收机结构的方法和装置

    公开(公告)号：US06967989B2

    公开(公告)日：2005-11-22

    申请号：US10150844

    申请日：2002-05-17

    申请人： Robert Gorday ,  Clinton C Powell ,  David Taubenheim

    发明人： Robert Gorday ,  Clinton C Powell ,  David Taubenheim

    IPC分类号： H04B1/707 ,  H04B1/69 ,  H03K9/00 ,  H04B7/216

    CPC分类号： H04B1/7115 ,  H04B1/709 ,  H04B1/7117 ,  H04B2201/70701 ,  H04B2201/7071

    摘要： A processor (216) time-shares correlators (206) to process (402) pilot channels for a plurality of branches to derive pilot symbols for each of the plurality of branches before processing control and data channels. The processor and the correlators cooperate to determine (404) from the pilot symbols a timing estimate for each of the plurality of branches. A signal quality estimator (210) determines (406) from the pilot symbols a signal quality for each of the plurality of branches. Subsequently, the processor cooperates with the correlators to process (408) the control and data channels of the plurality of branches, in an order determined by a plurality of branch attributes including at least one of the signal quality and the timing estimate determined for each of the plurality of branches.

    摘要翻译： 处理器（216）用于处理（402）多个分支的导频信道的时间共享相关器（206），以在处理控制和数据信道之前导出多个分支中的每一个的导频符号。 协处理器和相关器协调从导频符号确定（404）多个分支中的每一个的定时估计。 信号质量估计器（210）从导频符号确定（406）每个分支的信号质量。 随后，处理器与相关器协作以由多个分支属性确定的顺序处理（408）多个分支的控制和数据信道，该顺序属性包括以下各项中确定的信号质量和定时估计中的至少一个： 多个分支。

    Velocity enhancement for OFDM systems
    3.
    发明授权
    Velocity enhancement for OFDM systems 有权
    OFDM系统的速度增强

    公开(公告)号：US06904550B2

    公开(公告)日：2005-06-07

    申请号：US10331692

    申请日：2002-12-30

    申请人： Salvador Sibecas ,  Glafkos Stratis ,  Celestino Corral ,  Shahriar Enami ,  Gregg Rasor ,  Robert Gorday

    发明人： Salvador Sibecas ,  Glafkos Stratis ,  Celestino Corral ,  Shahriar Enami ,  Gregg Rasor ,  Robert Gorday

    IPC分类号： H04L27/26 ,  G01R31/28 ,  H04J3/12 ,  H04L7/00

    CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L25/0226 ,  H04L25/0232 ,  H04L27/34

    摘要： An orthogonal frequency division multiplexing (OFDM) transmitter method, consistent with certain embodiments of the present invention arranges OFDM data symbols representing data bits for transmission in a packet. A prescribed pattern of OFDM data symbols are removed (212) and replaced (216) with pilot symbols. The packet is then transmitted (220) to an OFDM receiver that receives the packet (224) and determines a channel correction factor from the pilot pattern. The receiver then estimates a plurality of channel correction factors, one for each of the plurality of OFDM symbols representing data (228) and uses these correction factors to correct the OFDM symbols representing data (232). Arbitrary data are then inserted in place of the pilot symbols (236). The OFDM symbols representing data along with the arbitrary data are then decoded using an error correction decoder that corrects the errors induced by substitution of the pilot symbols for data symbols (240).

    摘要翻译： 与本发明的某些实施例一致的正交频分复用（OFDM）发射机方法将表示用于传输的数据比特的OFDM数据符号排列在分组中。 用导频符号去除（212）并且替换（216）OFDM数据符号的规定模式。 然后将分组发送（220）到接收分组（224）并从导频模式确定信道校正因子的OFDM接收机。 接收机然后估计多个信道校正因子，一个用于代表数据（228）的多个OFDM符号中的每一个，并且使用这些校正因子来校正表示数据（232）的OFDM符号。 然后插入任意数据代替导频符号（236）。 然后使用错误校正解码器对表示数据以及任意数据的OFDM符号进行解码，纠错解码器校正由数据符号（240）导频符号的替换引起的错误。

    Mitigation of DC distortion in OFDM receivers
    4.
    发明申请
    Mitigation of DC distortion in OFDM receivers 有权
    减少OFDM接收机中的直流失真

    公开(公告)号：US20070242599A1

    公开(公告)日：2007-10-18

    申请号：US11404350

    申请日：2006-04-14

    申请人： Robert Gorday ,  Mahibur Rahman

    发明人： Robert Gorday ,  Mahibur Rahman

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2647 ,  H04L25/0232 ,  H04L25/061 ,  H04L27/2657

    摘要： A baseband receiver and corresponding methods are arranged and configured to mitigate effects of direct current (DC) distortion and process an Orthogonal Frequency Division Multiplexing (OFDM) signal as provided from a direct conversion radio or receiver. The baseband receiver includes an OFDM demodulator configured to demodulate the OFDM signal, a post processor coupled to the OFDM demodulator and configured to provide symbols corresponding to the OFDM signal, and a compensator coupled to at least one of the OFDM demodulator and the post processor and configured to reduce error rates out of the baseband receiver that result from DC distortion in the direct conversion radio.

    摘要翻译： 基带接收机和相应的方法被布置和配置为减轻直流（DC）失真的影响并处理从直接转换无线电或接收机提供的正交频分复用（OFDM）信号。 基带接收机包括被配置为解调OFDM信号的OFDM解调器，耦合到OFDM解调器并被配置为提供对应于OFDM信号的符号的后处理器，以及耦合到OFDM解调器和后处理器中的至少一个的补偿器， 被配置为从直接转换无线电中的DC失真导致的基带接收机之外的差错率降低。