中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

187 records (took 0.02 seconds)

    Modified preamble for programmable transmitter
    141.
    发明授权
    Modified preamble for programmable transmitter 有权
    可编程发射机的修改前导码

    公开(公告)号：US07558537B2

    公开(公告)日：2009-07-07

    申请号：US11403094

    申请日：2006-04-11

    Applicant: Jason A. Trachewsky ,  Rajendra Tushar Moorti ,  Christopher J. Hansen

    Inventor： Jason A. Trachewsky ,  Rajendra Tushar Moorti ,  Christopher J. Hansen

    IPC: H04B1/04

    CPC classification number: H04L27/2613 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/06

    Abstract: A programmable transmitter generates a frame preamble to train a receiver with respect to a communication link format that corresponds to a transmission mode wherein the transmission mode may comprise transmitting the communication link over one or more antennas. Generally, the invention includes generating a preamble with an arrangement that depends upon whether a Greenfield (high data rate) or mixed mode transmission is to occur and that depends upon a number of spatial streams that are to be generated. One format for high data rate transmission includes a short training sequence, a long training sequence and a signal field. The mixed mode transmission further includes a legacy prefix.

    Abstract translation: 可编程发射机产生帧前同步码，以针对对应于传输模式的通信链路格式来训练接收机，其中传输模式可以包括通过一个或多个天线发射通信链路。 通常，本发明包括生成具有取决于是否要发生绿地（高数据速率）或混合模式传输并且取决于要生成的空间流的数量的布置的前导码。 用于高数据速率传输的一种格式包括短训练序列，长训练序列和信号场。 混合模式传输还包括传统前缀。

    Accurate signal detection in a wireless environment
    142.
    发明授权
    Accurate signal detection in a wireless environment 有权
    在无线环境中准确的信号检测

    公开(公告)号：US07535978B2

    公开(公告)日：2009-05-19

    申请号：US12020478

    申请日：2008-01-25

    Applicant: Jason A. Trachewsky ,  Alan Corry

    Inventor： Jason A. Trachewsky ,  Alan Corry

    IPC: H04L27/06

    CPC classification number: H04L27/2647 ,  H04L7/041 ,  H04L7/08

    Abstract: A method for accurate signal detection begins by receiving a radio frequency signal, which is then converted into baseband signals. The processing then continues by performing a normalized auto correlation on the down-converted baseband signal to produce a normalized auto correlation signal. The process continues by performing a periodic pattern detection on the down-converted baseband signal to produce a normalized detected periodic signal. The process then continues by comparing the normalized auto correlation value with an auto correlation threshold and by comparing the normalized detected periodic signal with a set of thresholds. When the normalized auto correlation value compares favorably with the auto correlation threshold and when the normalized detected periodic signal compares favorably with the set of thresholds, the down-converted baseband signal is indicated to be a valid signal.

    Abstract translation: 用于准确信号检测的方法是通过接收射频信号开始的，然后将其转换为基带信号。 然后通过对下变频的基带信号执行归一化的自相关来继续处理，以产生归一化的自相关信号。 该过程通过对下变频的基带信号执行周期性模式检测以产生归一化的检测周期信号而继续。 然后，通过将归一化自相关值与自相关阈值进行比较并通过将归一化检测到的周期信号与一组阈值进行比较来继续该过程。 当归一化自相关值与自相关阈值相比较好时，并且当归一化检测到的周期信号与阈值集合相比较时，下转换的基带信号被指示为有效信号。

    WLAN receiver having an iterative decoder
    143.
    发明授权
    WLAN receiver having an iterative decoder 失效
    WLAN接收机具有迭代解码器

    公开(公告)号：US07466773B2

    公开(公告)日：2008-12-16

    申请号：US10876230

    申请日：2004-06-24

    Applicant: Christopher J. Hansen ,  Jason A. Trachewsky ,  Ashish Bhargave

    Inventor： Christopher J. Hansen ,  Jason A. Trachewsky ,  Ashish Bhargave

    IPC: H03D1/00 ,  H04L27/06

    CPC classification number: H04L1/005 ,  H03M13/29 ,  H03M13/2948 ,  H03M13/37 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/0618 ,  H04L25/03171

    Abstract: An iterative decoder for use in a WLAN includes an inner decoder/detector, a first subtraction module, a deinterleaving module, an outer decoder, a second subtraction module, an interleaving module, and a determining module. The inner decoder/detector determines inner coded bits and extrinsic information of the inner coded bits from symbol vector based on a channel matrix and inner extrinsic information feedback. The first subtraction module subtracts the inner extrinsic information feedback from the extrinsic information of the inner coded bits. The deinterleaving module deinterleaves the output of the first subtraction module to produce deinterleaved inner extrinsic information. The outer decoder determines outer coded bits and extrinsic information of the outer coded bits from the deinterleaved inner extrinsic information. The second subtraction module subtracts the deinterleaved inner extrinsic information from the extrinsic information of the outer coded bits. The interleaving module interleaves the output of the second subtraction module to produce the inner extrinsic information feedback. The determining module produces decoded bits based on the outer coded bits.

    Abstract translation: 在WLAN中使用的迭代解码器包括内部解码器/检测器，第一减法模块，解交织模块，外部解码器，第二减法模块，交织模块和确定模块。 内部解码器/检测器基于信道矩阵和内部外在信息反馈从符号向量确定内部编码比特的内部编码比特和外部信息。 第一减法模块从内部编码比特的外在信息中减去内部外在信息反馈。 解交织模块对第一减法模块的输出进行解交织以产生解交织的内部外在信息。 外部解码器从解交织的内部外在信息确定外部编码比特和外部编码比特的外在信息。 第二减法模块从外部编码比特的外在信息中减去解交织的内部外在信息。 交织模块交织第二减法模块的输出以产生内部外在信息反馈。 确定模块基于外部编码比特产生解码比特。

    Accurate signal detection in a wireless environment
    144.
    发明授权
    Accurate signal detection in a wireless environment 有权
    在无线环境中准确的信号检测

    公开(公告)号：US07349499B2

    公开(公告)日：2008-03-25

    申请号：US10817542

    申请日：2004-04-02

    Applicant: Jason A. Trachewsky ,  Alan Corry

    Inventor： Jason A. Trachewsky ,  Alan Corry

    IPC: H03D1/00

    CPC classification number: H04B1/0475 ,  H04L7/041 ,  H04L7/08 ,  H04L27/2647

    Abstract: A method for accurate signal detection begins by receiving a radio frequency signal, which is then converted into baseband signals. The processing then continues by performing a normalized auto correlation on the down-converted baseband signal to produce a normalized auto correlation signal. The process continues by performing a periodic pattern detection on the down-converted baseband signal to produce a normalized detected periodic signal. The process then continues by comparing the normalized auto correlation value with an auto correlation threshold and by comparing the normalized detected periodic signal with a set of thresholds. When the normalized auto correlation value compares favorably with the auto correlation threshold and when the normalized detected periodic signal compares favorably with the set of thresholds, the down-converted baseband signal is indicated to be a valid signal.

    Abstract translation: 用于准确信号检测的方法是通过接收射频信号开始的，然后将其转换为基带信号。 然后通过对下变频的基带信号执行归一化的自相关来继续处理，以产生归一化的自相关信号。 该过程通过对下变频的基带信号执行周期性模式检测以产生归一化的检测周期信号而继续。 然后，通过将归一化自相关值与自相关阈值进行比较并通过将归一化检测到的周期信号与一组阈值进行比较来继续该过程。 当归一化自相关值与自相关阈值相比较好时，并且当归一化检测到的周期信号与阈值集合相比较时，下转换的基带信号被指示为有效信号。

    Communication device incorporating beamforming handshaking
    147.
    发明授权
    Communication device incorporating beamforming handshaking 有权
    包含波束成形握手的通信设备

    公开(公告)号：US09356673B2

    公开(公告)日：2016-05-31

    申请号：US12575727

    申请日：2009-10-08

    Applicant: Christopher J. Hansen ,  Jason A. Trachewsky

    Inventor： Christopher J. Hansen ,  Jason A. Trachewsky

    IPC: H04B7/06 ,  H04B7/08

    CPC classification number: H04B7/0617 ,  H04B7/0619 ,  H04B7/086

    Abstract: A communication device includes a wireless transmitter, a wireless receiver, and a processing module. The wireless transmitter, the wireless receiver, and/or the processing module facilitate: a control-level communication with another communication device using initial transmit beamforming parameters and initial receive beamforming parameters; a handshake communication with the other communication device to determine adjustments of at least one of the initial transmit beamforming parameters and the initial receive beamforming parameters to produce at least one of adjusted transmit beamforming parameters and adjusted receive beamforming parameters; and a normal-level communication with the other communication device using the at least one of the adjusted transmit beamforming parameters and the adjusted receive beamforming parameters.

    Abstract translation: 通信设备包括无线发射机，无线接收机和处理模块。 无线发射机，无线接收机和/或处理模块便于：使用初始发射波束成形参数和初始接收波束成形参数与另一个通信设备进行控制级通信; 与另一通信设备的握手通信，以确定对初始发射波束形成参数和初始接收波束形成参数中的至少一个的调整，以产生经调整的发射波束成形参数和调整的接收波束形成参数中的至少一个; 以及使用经调整的发射波束形成参数和调整的接收波束形成参数中的至少一个与另一个通信设备的正常级通信。

    Robust wireless communication system and components thereof for processing a message from two sources
    148.
    发明授权
    Robust wireless communication system and components thereof for processing a message from two sources 有权
    强大的无线通信系统及其组件，用于处理来自两个来源的消息

    公开(公告)号：US09136916B2

    公开(公告)日：2015-09-15

    申请号：US12098013

    申请日：2008-04-04

    Applicant: Jason A. Trachewsky

    Inventor： Jason A. Trachewsky

    IPC: H04B7/02 ,  H04L1/06 ,  H04L29/06 ,  H04L1/00

    CPC classification number: H04B7/026 ,  H04B7/022 ,  H04L1/06 ,  H04L5/0053 ,  H04L29/0653 ,  H04L2001/0097 ,  H04W88/02 ,  H04W88/08

    Abstract: A wireless communication system includes an access point and first and second stations. The first station transmits a first message that includes an address of a second station as a destination address and an address of the first station as a source address. The access point forwards the message including the address of the second station address as the destination address and the address of the first station as the source address. The second station receives the message from the first station during a first time interval and receives the first message from the access point during a second time interval. The second station processes the duplicate received message to produce inbound data.

    Abstract translation: 无线通信系统包括接入点和第一和第二站。 第一站发送包括作为目的地址的第二站的地址的第一消息和作为源地址的第一站的地址。 接入点将包括第二站地址的地址的消息作为目的地地址和作为源地址的第一站的地址进行转发。 第二站在第一时间间隔期间从第一站接收消息，并且在第二时间间隔期间从接入点接收第一消息。 第二站处理重复接收的消息以产生入站数据。

    Multimode wireless communication device
    150.
    发明授权
    Multimode wireless communication device 有权
    多模无线通信设备

    公开(公告)号：US08831534B2

    公开(公告)日：2014-09-09

    申请号：US12903776

    申请日：2010-10-13

    Applicant: Jason A. Trachewsky ,  Alan Corry ,  Venkat Kodavati

    Inventor： Jason A. Trachewsky ,  Alan Corry ,  Venkat Kodavati

    IPC: H04B1/40

    CPC classification number: H04B1/406

    Abstract: A multimode wireless communication device includes a first radio section operably to convert outbound analog baseband signals into first outbound RF signals and to convert first inbound RF signals into inbound analog baseband signals when the wireless communication device is in a first mode of operation and a second radio section that performs similar functions in a second mode of operation. A diplexer section includes a first diplexer for coupling to a first antenna, and a second diplexer for coupling to a second antenna, and that selectively couples the first radio section to one of the first antenna and the second antenna, and that selectively couples the second radio section to one of the first antenna and the second antenna. First and second T/R switches are coupled to the first and second diplexers and to respectively, to the first and second radio sections.

    Abstract translation: 多模无线通信设备包括第一无线电部分，其可操作地将出站的模拟基带信号转换为第一出站RF信号，并且当无线通信设备处于第一操作模式时将第一入站RF信号转换为入站模拟基带信号， 在第二操作模式下执行类似功能的部分。 双工器部分包括用于耦合到第一天线的第一双工器和用于耦合到第二天线的第二双工器，并且将第一无线电部分选择性地耦合到第一天线和第二天线之一，并且选择性地将第二天线 无线电部分到第一天线和第二天线之一。 第一和第二T / R开关耦合到第一和第二双工器，并且分别耦合到第一和第二无线电部分。

Patent Agency Ranking