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    Burst spread spectrum radio system and method for site monitoring
    5.
    发明授权
    Burst spread spectrum radio system and method for site monitoring 有权
    突发扩频无线电系统和现场监测方法

    公开(公告)号：US07796675B1

    公开(公告)日：2010-09-14

    申请号：US12046950

    申请日：2008-03-12

    申请人： David Carter ,  Sy Prestwich ,  James R. Baker ,  Scott Bevan

    发明人： David Carter ,  Sy Prestwich ,  James R. Baker ,  Scott Bevan

    IPC分类号： H04B1/00

    CPC分类号： H04J13/102 ,  G08B25/007 ,  G08B25/009 ,  G08B25/10 ,  H04J13/0022

    摘要： A device for site monitoring is disclosed. The device may include a communication interface configured to receive site monitoring data from a site monitoring system. The communication interface may also be configured to wirelessly transmit the site monitoring data to a base station. The site monitoring data may include a device identification. The device also may include a processor and memory. The memory also may include two pseudonoise (PN) codes, namely a first PN code and a second PN code. The site monitoring data may be received from the site monitoring system. The site monitoring data may be spread using the first PN code to provide first spread site monitoring data. The first spread site monitoring data may be spread using the second PN code to provide second spread site monitoring data. The second spread site monitoring data may be transmitted using a burst direct sequence spread spectrum radio signal.

    摘要翻译： 公开了一种用于现场监控的设备。 该设备可以包括被配置为从站点监视系统接收站点监视数据的通信接口。 通信接口还可以被配置为将站点监视数据无线地发送到基站。 站点监视数据可以包括设备标识。 该设备还可以包括处理器和存储器。 存储器还可以包括两个伪噪声（PN）码，即第一PN码和第二PN码。 站点监视数据可以从站点监视系统接收。 可以使用第一PN码来传播站点监视数据，以提供第一扩散站监视数据。 可以使用第二PN码来扩展第一扩散站点监视数据，以提供第二扩散站点监视数据。 可以使用突发直接序列扩频无线电信号来发送第二扩展站点监视数据。

    Equalizer with decision feedback frequency tracking and bit decoding for spread spectrum communications
    7.
    发明授权
    Equalizer with decision feedback frequency tracking and bit decoding for spread spectrum communications 有权
    具有用于扩频通信的判决反馈频率跟踪和比特解码的均衡器

    公开(公告)号：US07236510B2

    公开(公告)日：2007-06-26

    申请号：US10676798

    申请日：2003-10-01

    申请人： W. Kurt Dobson ,  Dirk Ostermiller ,  Sy Prestwich ,  Scott Bevan

    发明人： W. Kurt Dobson ,  Dirk Ostermiller ,  Sy Prestwich ,  Scott Bevan

    IPC分类号： H04B1/69

    CPC分类号： H04J13/0077 ,  H04B1/7093 ,  H04L25/03114

    摘要： A spread spectrum communications system adapted to receive simultaneous signals from multiple transmitters, separates frequency error and equalizes and decodes continuous streams of data sets from a plurality of matched filters with frequency correction and which sorts through data and successfully decodes data bits. The spread spectrum communications system includes a transmitter and a receiver. The receiver includes an RF receiver. At least one PNB matched filter receives signals from the RF receiver. A plurality of frequency shifters receives a signal from the at least one PNB matched filter. A plurality of PNA matched filters receives data from the at least one PNB matched filter and the plurality of frequency shifters. An equalizer/decoder receives signals from the plurality of PNA matched filters.

    摘要翻译： 扩展频谱通信系统，适于从多个发射机接收同时信号，分离频率误差，并对来自具有频率校正的多个匹配滤波器的连续数据流流进行均衡和解码，并通过数据进行排序并成功解码数据位。 扩频通信系统包括发射机和接收机。 接收机包括RF接收机。 至少一个PNB匹配滤波器从RF接收器接收信号。 多个移频器从至少一个PNB匹配滤波器接收信号。 多个PNA匹配滤波器从至少一个PNB匹配滤波器和多个频率移位器接收数据。 均衡器/解码器从多个PNA匹配滤波器接收信号。

    Radio frequency receiver systems that are configured to achieve high dynamic range
    10.
    发明授权
    Radio frequency receiver systems that are configured to achieve high dynamic range 失效
    配置为实现高动态范围的射频接收机系统

    公开(公告)号：US08068799B1

    公开(公告)日：2011-11-29

    申请号：US12046239

    申请日：2008-03-11

    申请人： Sy Prestwich ,  Scott Bevan

    发明人： Sy Prestwich ,  Scott Bevan

    IPC分类号： G06F3/033 ,  H04B7/00

    CPC分类号： H04B1/109

    摘要： A radio frequency (RF) receiver system that is configured to achieve high dynamic range may include at least one antenna and a plurality of receivers connected to the at least one antenna. The plurality of antennas may be configured to provide different gains. The RF receiver system may include an analog-to-digital (A/D) converter subsystem connected to the plurality of receivers. The A/D converter subsystem may include a plurality of A/D converters. An overall digitization range of the A/D converter subsystem may be greater than a digitization range of any of the plurality of A/D converters individually. The overall digitization range of the A/D converter subsystem may be sufficiently large so as to accommodate a desired dynamic range of the RF receiver system.

    摘要翻译： 被配置为实现高动态范围的射频（RF）接收机系统可以包括至少一个天线和连接到该至少一个天线的多个接收机。 多个天线可以被配置为提供不同的增益。 RF接收机系统可以包括连接到多个接收机的模数（A / D）转换器子系统。 A / D转换器子系统可以包括多个A / D转换器。 A / D转换器子系统的整体数字化范围可以大于多个A / D转换器中的任一个的数字化范围。 A / D转换器子系统的整体数字化范围可能足够大，以便适应RF接收机系统的期望的动态范围。