COMMUNICATION SYSTEM UTILIZING A HIERARCHICALLY MODULATED SIGNAL AND METHOD THEREOF
    1.
    发明申请
    COMMUNICATION SYSTEM UTILIZING A HIERARCHICALLY MODULATED SIGNAL AND METHOD THEREOF 有权
    一种利用层次调制信号的通信系统及其方法

    公开(公告)号:US20110222634A1

    公开(公告)日:2011-09-15

    申请号:US12721010

    申请日:2010-03-10

    Inventor: GLENN A. WALKER

    CPC classification number: H04L27/00 H04L27/183 H04L27/2604

    Abstract: A communication system utilizing a hierarchically modulated signal and method thereof are provided, wherein a receiver system is configured to receive a hierarchically modulated signal. The receiver system includes a receiver device configured to receive the hierarchically modulated signal, which is a function of a time domain, and including a high priority data stream that has a single carrier type modulation, and a low priority data stream having data bits that are spread over a plurality of data symbols of a high priority data modulation. The receiver system further includes a low priority processor device, which includes an OFDM decoder configured to convert the low priority data stream of the hierarchically modulated signal that is a function of the time domain to be a function of a frequency domain by utilizing a FFT, such that an output is emitted that is representative of the low priority data stream.

    Abstract translation: 提供一种利用分层调制信号的通信系统及其方法,其中接收机系统被配置为接收分层调制信号。 接收机系统包括被配置为接收作为时域的函数的分层调制信号的接收机设备,并且包括具有单载波类型调制的高优先级数据流和具有数据比特的低优先级数据流 扩展到高优先级数据调制的多个数据符号。 接收机系统还包括低优先级处理器设备,其包括OFDM解码器,其被配置为通过利用FFT将作为时域的函数的作为时域的函数的分层调制信号的低优先级数据流转换成频域的函数, 使得发出代表低优先级数据流的输出。

    COMMUNICATION SYSTEM AND METHOD THEREOF
    2.
    发明申请
    COMMUNICATION SYSTEM AND METHOD THEREOF 审中-公开
    通信系统及其方法

    公开(公告)号:US20110275309A1

    公开(公告)日:2011-11-10

    申请号:US12776461

    申请日:2010-05-10

    Inventor: GLENN A. WALKER

    Abstract: A communication system and method thereof are provided, wherein the system includes a first satellite configured to re-transmit at least a first transmitted signal at a first frequency band, a second satellite configured to re-transmit the first transmitted signal at a second frequency band, and a first terrestrial repeater configured to re-transmit the first transmitted signal at a third frequency band. The system further includes a third satellite configured to re-transmit a second transmitted signal at the third frequency band that is different than the first transmitted signal re-transmitted by the first and second satellites, such that the first signal re-transmitted by the first terrestrial repeater, and the second signal re-transmitted by the third satellite interfere with one another, wherein the first signals re-transmitted by the first satellite, the second satellite, and the first terrestrial repeater includes substantially the same data.

    Abstract translation: 提供了一种通信系统及其方法,其中该系统包括:第一卫星,被配置为在第一频带上重新传送至少第一发射信号;第二卫星,被配置为在第二频带重新发射第一发射信号 以及被配置为在第三频带重传第一发送信号的第一地面中继器。 该系统还包括第三卫星,其被配置为在与由第一和第二卫星重发的第一发射信号不同的第三频带处重传第二发射信号,使得由第一卫星重发的第一信号 并且由第三卫星再次发送的第二信号相互干扰,其中由第一卫星,第二卫星和第一陆地中继器重发的第一信号包括基本上相同的数据。

    APPARATUS TO COMMUNICATE MULTIPLE SIGNALS FROM MULTIPLE ANTENNAS ON A SINGLE CABLE
    3.
    发明申请
    APPARATUS TO COMMUNICATE MULTIPLE SIGNALS FROM MULTIPLE ANTENNAS ON A SINGLE CABLE 有权
    在单根电缆上从多个天线传播多个信号的设备

    公开(公告)号:US20130044826A1

    公开(公告)日:2013-02-21

    申请号:US13209932

    申请日:2011-08-15

    Inventor: GLENN A. WALKER

    CPC classification number: H04B1/18 H01Q1/3216 H01Q21/28 H04B7/084

    Abstract: An antenna assembly, a receiver, and a system configured to superimpose a first received signal from a first antenna and an intermediate signal based on a second received signal from a second antenna onto a single cable. The antenna assembly includes a mixer and an adjustable local oscillator (ALO) that frequency shift the second received signal to generate the intermediate signal. The output frequency of the ALO is controlled by a control signal superimposed on the single cable that is output by the receiver. With this arrangement, a plurality of antennas or antenna elements can be connected to a receiver using a single coaxial cable. Such an arrangement is particularly desirable to manufacturers of automobiles and other vehicles. Also, the receiver can detect if the output frequency of the ALO needs to be adjusted, and so close-loop control of the output frequency is possible.

    Abstract translation: 天线组件,接收器和被配置为将来自第一天线的第一接收信号和基于第二接收信号的中间信号从第二天线叠加到单个电缆上的系统。 天线组件包括混频器和可调节的本地振荡器(ALO),其对第二接收信号进行频率偏移以产生中间信号。 ALO的输出频率由叠加在接收机输出的单根电缆上的控制信号控制。 利用这种布置,可以使用单个同轴电缆将多个天线或天线元件连接到接收器。 这种布置对于汽车和其他车辆的制造商是特别需要的。 此外,接收机可以检测是否需要调整ALO的输出频率,因此输出频率的闭环控制是可能的。

    IN-VEHICLE COMMUNICATION SYSTEM AND METHOD OF OPERATION
    4.
    发明申请
    IN-VEHICLE COMMUNICATION SYSTEM AND METHOD OF OPERATION 有权
    车内通信系统及操作方法

    公开(公告)号:US20140080438A1

    公开(公告)日:2014-03-20

    申请号:US13621960

    申请日:2012-09-18

    Inventor: GLENN A. WALKER

    Abstract: An in-vehicle communication system configured to receive signals from a transmitter configured to transmit periodically a time-reference signal and receiver specific information. An information transmission time of receiver specific information is timed relative to a reference transmission time of the time-reference signal. The system includes a receiver characterized as having a receiver identification value. The receiver is configured to operate from an off-state to an on-state during an information-expected time interval to receive receiver specific information. The information-expected time interval is determined based on a reception time of the time-reference signal and the receiver identification value. This provides a way to ensure that the transmitter only transmits messages when it knows the intended receiver is on. It also ensures that the receiver is on only when messages that for that receiver are expected to be received.

    Abstract translation: 车载通信系统,被配置为从配置成周期性地发送时间参考信号和接收机特定信息的发射机接收信号。 接收机专用信息的信息发送时间相对于时间基准信号的参考发送时间定时。 该系统包括一个特征在于具有接收机识别值的接收机。 接收机被配置为在信息预期时间间隔期间从关闭状态到接通状态操作以接收接收机特定信息。 基于时间参考信号的接收时间和接收机识别值来确定信息预期时间间隔。 这提供了一种确保发射机在知道预期的接收机已经开启时才发送消息的方法。 它还可以确保接收器仅在预期接收到该接收器的消息时才接通。

    SATELLITE RECEIVER PERFORMANCE ENHANCEMENTS
    5.
    发明申请
    SATELLITE RECEIVER PERFORMANCE ENHANCEMENTS 有权
    卫星接收机性能提升

    公开(公告)号:US20130089126A1

    公开(公告)日:2013-04-11

    申请号:US13267505

    申请日:2011-10-06

    CPC classification number: H04L1/0047 H04L1/201

    Abstract: Long time interleaver and listenable audio performance enhancements for a satellite receiver are presented. One enhancement includes comparing a correlation and a predetermined threshold value and blocking satellite signal data transmission from entry into long time interleaver (LTI) device circuitry and forward error correction (FEC) circuitry when the correlation value is the same as, or less than the predetermined threshold value. Another enhancement includes using Reed-Solomon codeword error checking to prevent erroneous baseband signal data from being accepted as good baseband signal data. A further enhancement includes storing symbol timing and frequency data during a strong signal condition of the satellite receiver and using this stored data when the satellite receiver encounters a weak signal condition. Another enhancement includes mitigating DC offset noise in a satellite receiver having a zero-IF tuner.

    Abstract translation: 介绍了卫星接收机的长时间交织和可听音频性能增强。 一个增强包括当相关值相同或小于预定值时,将相关性和预定阈值进行比较并阻止卫星信号数据传输从进入长时间交织器(LTI)设备电路和前向纠错(FEC)电路) 阈值。 另一个改进包括使用Reed-Solomon码字错误检查来防止错误的基带信号数据被接受为良好的基带信号数据。 进一步的增强包括在卫星接收机的强信号状态期间存储符号定时和频率数据,并且当卫星接收机遇到弱信号条件时使用该存储的数据。 另一个增强措施包括减轻具有零中频调谐器的卫星接收机中的直流偏移噪声。

    HIERARCHICALLY MODULATED OFDM COMMUNICATION FROM A SATELLITE-BASED TRANSMITTER WITH REDUCED SECONDARY DATA LOSS FROM CLIPPING
    6.
    发明申请
    HIERARCHICALLY MODULATED OFDM COMMUNICATION FROM A SATELLITE-BASED TRANSMITTER WITH REDUCED SECONDARY DATA LOSS FROM CLIPPING 有权
    具有减少二次数据损失的基于卫星的发射机的非均匀调制OFDM通信

    公开(公告)号:US20100195482A1

    公开(公告)日:2010-08-05

    申请号:US12362712

    申请日:2009-01-30

    Abstract: High priority data and low priority digital data are transmitted as primary and secondary data in hierarchically modulated, orthogonal frequency division multiplexing (OFDM) from an earth-orbiting satellite. To enable the transmitter amplifier to be operated with less back-off from saturation without clipping, the low priority OFDM symbols have fewer samples than the high priority OFDM symbols, and the high priority samples on which the low priority samples are superimposed are selected according to a first deterministic rule using sample power comparisons of the high priority samples to concentrate the low priority samples on those high priority samples having lower (optimally, the lowest) sample power. The low priority samples are distributed on the selected high priority samples according to a second deterministic rule relating the original low priority sample order to the original high priority sample order.

    Abstract translation: 高优先级数据和低优先级数字数据作为来自地球轨道卫星的分层调制的正交频分复用(OFDM)中的主要和次要数据被发送。 为了使得发射机放大器能够在没有削波的情况下以较少的饱和后退运行,低优先级OFDM符号具有比高优先级OFDM符号少的采样,并且根据 使用高优先级样本的采样功率比较的第一确定性规则将低优先级样本集中在具有较低(最佳,最低))采样功率的那些高优先级样本上。 低优先级样本根据与原始低优先级采样顺序相关联的原始高优先级采样顺序的第二确定规则分布在所选择的高优先级采样上。

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