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1.发明申请ENHANCED WIRELESS PACKET DATA COMMUNICATION SYSTEM, METHOD, AND APPARATUS APPLICABLE TO BOTH WIDE AREA NETWORKS AND LOCAL AREA NETWORKS 有权增强的无线数据包数据通信系统，方法和装置适用于两个区域网络和本地区域网络公开(公告)号：US20090103509A1
公开(公告)日：2009-04-23
申请号：US12340272
申请日：2008-12-19
申请人： H. Britton Sanderford, JR. , Robert E. Rouquette , Gary A. Naden , Marc L. Reed , Gordon J. Boudreaux , Michael R. Brown
发明人： H. Britton Sanderford, JR. , Robert E. Rouquette , Gary A. Naden , Marc L. Reed , Gordon J. Boudreaux , Michael R. Brown
IPC分类号： H04J1/00
CPC分类号： H03L7/08 , H03B21/00 , H04L5/06 , H04L5/16 , H04L25/061 , H04L25/4902 , H04L25/4921 , H04L27/12 , H04L27/2331 , H04L27/32 , H04L27/34 , H04L27/3433 , H04L27/3483 , H04L27/364 , H04L27/38 , H04L27/3845 , H04W36/08 , H04W72/0426
摘要： A cellular wireless packet data communication system containing transmit-only endpoint devices which transmit to receive-only base stations. The system is configured to allow for large area coverage (e.g., a metropolitan area) with far fewer number base stations than are required with conventional two-way cellular systems. The base station coverage areas are configured to overlap, allowing for reception of packets at multiple base stations. A data concentrator resolves redundantly received messages. The network is configurable as a WAN, a LAN, or a combination of the two. Novel modulation techniques (e.g., a 16QAM submodulation together with a 7FSK modulation) are used such that low cost components can be used in the transmitters and receivers while achieving outstanding probability of success performance. The endpoint devices are battery operated and accordingly, are designed for low power consumption and multi-year battery life. The system is used in a variety of applications including remote monitoring and mobile communications.
摘要翻译： 一种蜂窝式无线分组数据通信系统，其包含向仅接收基站发送的仅发送端点设备。 该系统被配置为允许具有比常规双向蜂窝系统所需的数量少的基站的大面积覆盖（例如，大都市区域）。 基站覆盖区被配置为重叠，允许在多个基站处接收分组。 数据集中器解决冗余接收的消息。 该网络可配置为WAN，LAN或两者的组合。 使用新的调制技术（例如，16QAM子调制以及7FSK调制），使得可以在发射机和接收机中使用低成本组件，同时实现成功性能的突出概率。 端点设备是电池供电的，因此设计用于低功耗和多年电池寿命。 该系统用于各种应用，包括远程监控和移动通信。
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2.发明授权Enhanced wireless packet data communication system, method, and apparatus applicable to both wide area networks and local area networks 有权适用于广域网和局域网的增强型无线分组数据通信系统，方法和装置公开(公告)号：US07477694B2
公开(公告)日：2009-01-13
申请号：US10662530
申请日：2003-09-16
申请人： H. Britton Sanderford, Jr. , Robert E. Rouquette , Gary A. Naden , Marc L. Reed , Gordon J. Boudreaux , Michael R. Brown
发明人： H. Britton Sanderford, Jr. , Robert E. Rouquette , Gary A. Naden , Marc L. Reed , Gordon J. Boudreaux , Michael R. Brown
CPC分类号： H03L7/08 , H03B21/00 , H04L5/06 , H04L5/16 , H04L25/061 , H04L25/4902 , H04L25/4921 , H04L27/12 , H04L27/2331 , H04L27/32 , H04L27/34 , H04L27/3433 , H04L27/3483 , H04L27/364 , H04L27/38 , H04L27/3845 , H04W36/08 , H04W72/0426
摘要： A cellular wireless packet data communication system containing transmit-only endpoint devices which transmit to receive-only base stations. The system is configured to allow for large area coverage (e.g., a metropolitan area) with far fewer number base stations than are required with conventional two-way cellular systems. The base station coverage areas are configured to overlap, allowing for reception of packets at multiple base stations. A data concentrator resolves redundantly received messages. The network is configurable as a WAN, a LAN, or a combination of the two. Novel modulation techniques (e.g., a 16QAM submodulation together with a 7FSK modulation) are used such that low cost components can be used in the transmitters and receivers while achieving outstanding probability of success performance. The endpoint devices are battery operated and accordingly, are designed for low power consumption and multi-year battery life. The system is used in a variety of applications including remote monitoring and mobile communications.
摘要翻译： 一种蜂窝式无线分组数据通信系统，其包含向仅接收基站发送的仅发送端点设备。 该系统被配置为允许具有比常规双向蜂窝系统所需的数量少的基站的大面积覆盖（例如，大都市区域）。 基站覆盖区被配置为重叠，允许在多个基站处接收分组。 数据集中器解决冗余接收的消息。 该网络可配置为WAN，LAN或两者的组合。 使用新的调制技术（例如，16QAM子调制以及7FSK调制），使得可以在发射机和接收机中使用低成本组件，同时实现成功性能的突出概率。 端点设备是电池供电的，因此设计用于低功耗和多年电池寿命。 该系统用于各种应用，包括远程监控和移动通信。
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3.发明授权Mobile multifrequency transmitter transmitting on frequencies based on geographic locations and a method thereof 有权基于地理位置的频率上的移动多频发射机发射及其方法公开(公告)号：US07705777B2
公开(公告)日：2010-04-27
申请号：US11562716
申请日：2006-11-22
申请人： H. Britton Sanderford, Jr. , Robert E. Rouquette , Gary A. Naden , Marc L. Read , Gordon J. Boudreaux , Michael R. Brown
发明人： H. Britton Sanderford, Jr. , Robert E. Rouquette , Gary A. Naden , Marc L. Read , Gordon J. Boudreaux , Michael R. Brown
CPC分类号： H03L7/08 , H03B21/00 , H04L5/06 , H04L5/16 , H04L25/061 , H04L25/4902 , H04L25/4921 , H04L27/12 , H04L27/2331 , H04L27/32 , H04L27/34 , H04L27/3433 , H04L27/3483 , H04L27/364 , H04L27/38 , H04L27/3845 , H04W36/08 , H04W72/0426
摘要： A mobile multifrequency transmitter includes a self-locator, a frequency selector, and a communication unit. The self-locator is configured to determine a current self location without transmitting an outgoing signal, and to provide the self location to the multifrequency transmitter. The frequency selector is configured to select a usable frequency based on the current self location. The communication unit is configured to transmit on said selected usable frequency. A mobile communication method includes the steps of obtaining a current self location from a self-locator without transmitting an outgoing signal, looking up in a database an allowable frequency band corresponding to the current self location, and transmitting on the allowable frequency band. Thus, the mobile multi-frequency transmitter is capable of handling an automatic frequency switchover without the need for higher level cellular direction.
摘要翻译： 移动多频发射机包括自定位器，频率选择器和通信单元。 自定位器被配置为确定当前的自身位置而不发送输出信号，并且向多频发射器提供自身位置。 频率选择器被配置为基于当前自身位置来选择可用频率。 通信单元被配置为在所述选择的可用频率上进行发送。 一种移动通信方法包括以下步骤：从自定位器获取当前自身位置，而不发送输出信号，在数据库中查找与当前自身位置相对应的可允许频带，以及在允许频带上进行发送。 因此，移动多频发射机能够处理自动频率切换，而不需要更高级的蜂窝方向。
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公开(公告)号：US5920589A
公开(公告)日：1999-07-06
申请号：US559913
申请日：1995-11-17
IPC分类号： H04B1/707
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/70755 , H04B1/70775 , H04B1/708 , H04B1/7097 , H04B1/7101
摘要： A direct sequence spread spectrum (DSSS) DSP implementation technique utilizing a unique combination of multiple filters, transforms, despreading algorithm and spectral compression, all in a single coefficient set, providing a highly efficient system requiring relatively nominal computational hardware and software requirements. Reallocatable computational resources allow for frequency uncertainty in the transmitter, without the typical excessive noise bandwidth penalties. The present system further contemplates a unique energy detection algorithm for discerning spread spectrum while in the search mode, utilizing several discrete sampling data sets to increase signal strength, reducing noise, while changing the relative phase of the received chipping code with respect to the received signal. The spectral compression of the spreading sequence is achieved by representing the PRC as an array of two, complimenting fractional coefficients. The PRC code is filtered to achieve the required spectral compression characteristics, resulting in minimal despreading loss, while providing interference rejection of CW signals greater than 1.5 MHz from the center IF frequency.
摘要翻译： 直接序列扩频（DSSS）DSP实现技术利用多个滤波器，变换，解扩算法和频谱压缩的独特组合，全部在单个系数集中，提供需要相对标称计算硬件和软件要求的高效系统。 可重新定位的计算资源允许发射机中的频率不确定性，而不会产生典型的过多的噪声带宽损失。 本系统进一步考虑了一种独特的能量检测算法，用于在搜索模式下识别扩展频谱，利用若干离散采样数据集增加信号强度，降低噪声，同时改变接收到的切片码相对于接收信号的相对相位 。 扩展序列的频谱压缩通过将PRC表示为两个相加的分数系数的阵列来实现。 对PRC码进行滤波以实现所需的频谱压缩特性，从而产生最小的去扩展损耗，同时从中心IF频率提供大于1.5MHz的CW信号的干扰抑制。
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5.发明授权Geographic locating remote endpoint monitor device, system, and methodology thereof 有权地理定位远程端点监控设备，系统及其方法公开(公告)号：US08374228B2
公开(公告)日：2013-02-12
申请号：US12340272
申请日：2008-12-19
申请人： H. Britton Sanderford, Jr. , Robert E. Rouquette , Gary A. Naden , Marc L. Reed , Gordon J. Boudreaux , Michael R. Brown
发明人： H. Britton Sanderford, Jr. , Robert E. Rouquette , Gary A. Naden , Marc L. Reed , Gordon J. Boudreaux , Michael R. Brown
CPC分类号： H03L7/08 , H03B21/00 , H04L5/06 , H04L5/16 , H04L25/061 , H04L25/4902 , H04L25/4921 , H04L27/12 , H04L27/2331 , H04L27/32 , H04L27/34 , H04L27/3433 , H04L27/3483 , H04L27/364 , H04L27/38 , H04L27/3845 , H04W36/08 , H04W72/0426
摘要： A remote endpoint monitor device includes a remote endpoint device including a meter, a position locator, a frequency selector, and a communication unit. The meter is configured to measure a service parameter to provide a measured service parameter value. The position locator is configured to determine a position of the remote endpoint device. The frequency selector is configured to select a transmission frequency device based on the determined position. The transmitter is configured to transmit service information data including the service parameter value at the transmission frequency selected by the frequency selector. A method of a remote endpoint monitor device includes measuring a service parameter, determining a position of the remote endpoint device, selecting a transmission frequency of the remote end point device, and transmitting service information data at the transmission frequency. Thus, the remote endpoint monitor device is capable of handling an automatic frequency switchover without direction provided externally.
摘要翻译： 远程端点监视器设备包括远程端点设备，其包括仪表，位置定位器，频率选择器和通信单元。 仪表被配置为测量服务参数以提供测量的服务参数值。 位置定位器被配置为确定远程端点设备的位置。 频率选择器被配置为基于所确定的位置来选择发送频率设备。 发送器被配置为发送包括由频率选择器选择的发送频率的服务参数值的服务信息数据。 一种远程端点监控装置的方法包括：测量服务参数，确定远程端点设备的位置，选择远端终端设备的传输频率，以及以传输频率发送服务信息数据。 因此，远程端点监视设备能够处理自动频率切换，而无需外部提供方向。
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6.发明授权Direct sequence spread spectrum method, computer-based product, apparatus and system tolerant to frequency reference offset 失效直接序列扩频方法，基于计算机的产品，装置和系统容忍频率参考偏移
公开(公告)号：US5999561A
公开(公告)日：1999-12-07
申请号：US929891
申请日：1997-09-15
申请人： Gary A. Naden , Robert E. Rouquette , H. Britton Sanderford, Jr. , Dale E. Reiser , Charles A. Hwang , Marc L. Reed
发明人： Gary A. Naden , Robert E. Rouquette , H. Britton Sanderford, Jr. , Dale E. Reiser , Charles A. Hwang , Marc L. Reed
IPC分类号： H04B1/707
CPC分类号： H04B1/707
摘要： A method, apparatus, computer-based product and system employs a digital receiver (or transceiver) to receive, digitize and process a direct sequence spread spectrum signal using efficient, low-cost digital signal processing components. A radio front end portion of the receiver receives and digitizes the signal, and a digital signal processing portion downconverts and despreads the signal by applying a pseudorandom noise (PN) code, used at a transmitter to spread a data signal contained in the direct sequence spread spectrum signal, to the received signal. In order to initially align, and maintain alignment of, the PN code with the direct sequence spread spectrum signal, a timing and state control mechanism is included that provides time reference correction information to the signal processing components of the receiver. This time reference correction information allows the receiver to be compatible with transmitters using inaccurate frequency references which impart a significant frequency ambiguity in the received signal. Additional features include computer-based synchronization methods and mechanisms suitable for use for low performance digital signal processors and employ power management mechanisms that enable long-term operation using battery power. The power management mechanisms enable the receiver to operate in a network setting, over the course of multiple years off battery power, with similar receivers, transmitters and transceiver that communicate with one another using direct sequence spread spectrum signals.
摘要翻译： 一种方法，装置，基于计算机的产品和系统使用数字接收机（或收发器）来使用有效的低成本数字信号处理组件来接收，数字化和处理直接序列扩频信号。 接收机的无线电前端部分接收并数字化该信号，并且数字信号处理部分通过应用在发射机处使用的伪随机噪声（PN）码来对信号进行下变频和解扩，以扩展包含在直接序列扩展中的数据信号 频谱信号，到接收信号。 为了初始对准和保持PN码与直接序列扩频信号的对准，包括向接收机的信号处理部件提供时间基准校正信息的定时和状态控制机制。 该时间参考校正信息允许接收机与使用不准确的频率参考的发射机兼容，这在接收信号中赋予显着的频率模糊。 附加功能包括适用于低性能数字信号处理器的基于计算机的同步方法和机制，并采用使用电池电源进行长期运行的电源管理机制。 功率管理机制使得接收机能够使用类似的接收机，发射器和收发器在多年的关闭电池电力的过程中在使用直接序列扩频信号彼此通信的网络设置中进行操作。
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公开(公告)号：USRE40111E1
公开(公告)日：2008-02-26
申请号：US09952000
申请日：2001-09-14
CPC分类号： H04B1/708 , G08B25/10 , H04B1/7075 , H04B1/70756 , H04B1/70757 , H04B1/7077 , H04B2201/70715
摘要： A remote power meter monitoring system using spread spectrum transmitters, fast frequency shift keying, spread spectrum receivers and a computer. The spread spectrum transmitter uses a chip code generator, preamble register, address register data register and oscillator coupled to a microprocessor to transmit information in a direct sequence spread spectrum signal. The spread spectrum receiver acquires synchronization of the spread spectrum signal using a microprocessor to despread and detect the transmitted information, which relates to data from a power meter.
摘要翻译： 使用扩频发射机，快速频移键控，扩频接收机和计算机的远程功率计监控系统。 扩频发射机使用芯片码发生器，前导码寄存器，地址寄存器数据寄存器和耦合到微处理器的振荡器以直接序列扩频信号传输信息。 扩频接收机使用微处理器获取扩频信号的同步，对与功率计的数据有关的发送信息进行解扩和检测。
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公开(公告)号：US06335953B1
公开(公告)日：2002-01-01
申请号：US09432258
申请日：1999-11-02
IPC分类号： H04L2705
CPC分类号： H04J13/00 , H03J1/0091 , H04B1/713 , H04B1/715 , H04B2001/7152 , H04B2001/7154 , H04L7/041
摘要： A method utilizing intentionally generated in-band frequency harmonics to compensate for frequency error and frequency drift in a voltage controlled oscillator of a receiver, thereby eliminating the frequency synthesizer and RF divider required in conventional designs. The method includes modulating the intentionally generated frequency in a predetermined manner so that a receiver can identify the intentionally generated frequency and includes the use of plural frequency harmonics for use in a curve fitting technique to correct frequency error in the voltage controlled oscillator.
摘要翻译： 一种利用有意产生的带内频率谐波来补偿接收机的压控振荡器中的频率误差和频率漂移的方法，从而消除了常规设计中所需的频率合成器和RF分频器。 该方法包括以预定方式调制有意产生的频率，使得接收机可以识别有意产生的频率，并且包括使用多个频率谐波用于曲线拟合技术以校正压控振荡器中的频率误差。
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公开(公告)号：US5598427A
公开(公告)日：1997-01-28
申请号：US782345
申请日：1991-10-24
IPC分类号： G08B25/10 , H04B1/7075 , H04B1/7077 , H04B1/69
CPC分类号： H04B1/7075 , G08B25/10 , H04B1/70757 , H04B1/7077 , H04B1/70756 , H04B2201/70715
摘要： A wireless alarm system using spread spectrum transmitters, fast frequency shift keying, spread spectrum receivers and computer with a display. The spread spectrum transmitter includes an oscillator coupled to a microprocessor with chip code generation means, preamble register, address register and data register. The spread spectrum receiver acquires synchronization of the spread spectrum signal using a microprocessor coupled to the quieting, signal strength or baseband output of the receiver, with a two step algorithm. The steps comprise achieving a coarse lock and a fine lock to the spread spectrum signal.
摘要翻译： 一种使用扩频发射机，快速频移键控，扩频接收机和带显示器的计算机的无线报警系统。 扩频发射机包括耦合到具有码片生成装置的微处理器的振荡器，前同步码寄存器，地址寄存器和数据寄存器。 扩展频谱接收机利用与接收机的静音，信号强度或基带输出耦合的微处理器，利用两步算法获取扩频信号的同步。 这些步骤包括对扩展频谱信号实现粗略锁定和精细锁定。
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公开(公告)号：US6111911A
公开(公告)日：2000-08-29
申请号：US485007
申请日：1995-06-07
IPC分类号： H04B1/707 , H04B1/7075 , H04B1/7077 , H04B1/708 , H04B1/7097 , H04B1/71
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/70755 , H04B1/70775 , H04B1/708 , H04B1/7097 , H04B1/7101
摘要： A system and method for receiving direct sequence spread spectrum transmissions with both chip code and frequency uncertainty including a parallel frequency acquisition technique for increasing receiver sensitivity and increasing process gain while reducing a preamble duration required for spread spectrum acquisition. The system and method include techniques for reducing effects of jamming and impulse noise on receiver performance via enhanced antenna diversity by constructively combining received signals. Further, techniques are provided which compensate for chip code alignment drift, providing an associated transmitter maintains carrier and chip code coherence, by comparing received signal energies at varying chip code alignments. These techniques enable the use of lower cost frequency setting crystals in both the receiver and transmitter as well as provide for system operation over a wider temperature range.
摘要翻译： 一种用于接收具有芯片码和频率不确定性的直接序列扩展频谱传输的系统和方法，包括用于增加接收机灵敏度并增加处理增益的并行频率采集技术，同时减少扩频获取所需的前导码持续时间。 该系统和方法包括通过结构化地组合接收信号，通过增强的天线分集来减少干扰和脉冲噪声对接收机性能的影响的技术。 此外，提供了补偿芯片码对准漂移的技术，通过比较在变化的码片对准处的接收信号能量，提供相关发射机维持载波和码片相干性。 这些技术使得能够在接收机和发射机中使用较低成本的频率设置晶体，并且在更宽的温度范围内提供系统操作。
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