Robust Low-Frequency Spread-Spectrum Navigation System
    11.
    发明申请
    Robust Low-Frequency Spread-Spectrum Navigation System 有权
    强大的低频扩频导航系统

    公开(公告)号:US20100103982A1

    公开(公告)日:2010-04-29

    申请号:US12609856

    申请日:2009-10-30

    IPC分类号: H04B1/69 H04B1/707 H04B1/713

    摘要: Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference.

    摘要翻译: 为导航系统描述了方法和装置。 一种过程包括提供分布在整个所需覆盖区域内的多个发射机; 将所述多个发射机锁定到公共定时参考; 从所述多个发射机中的每一个发送信号。 一种装置包括分布在期望覆盖区域内的多个发射机; 其中所述多个发射机中的每一个包括分组发生器; 并且其中所述多个发射器被锁定到公共定时参考。

    Robust low-frequency spread-spectrum navigation system
    12.
    发明申请
    Robust low-frequency spread-spectrum navigation system 失效
    强大的低频扩频导航系统

    公开(公告)号:US20080088507A1

    公开(公告)日:2008-04-17

    申请号:US11583374

    申请日:2006-10-17

    IPC分类号: G01S1/08 G01S3/02

    摘要: Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference.

    摘要翻译: 为导航系统描述了方法和装置。 一种过程包括提供分布在整个所需覆盖区域内的多个发射机; 将所述多个发射机锁定到公共定时参考; 从所述多个发射机中的每一个发送信号。 一种装置包括分布在期望覆盖区域内的多个发射机; 其中所述多个发射机中的每一个包括分组发生器; 并且其中所述多个发射器被锁定到公共定时参考。

    Capacitively coupled RF voltage probe having optimized flux linkage
    15.
    发明授权
    Capacitively coupled RF voltage probe having optimized flux linkage 失效
    具有优化的磁链的电容耦合RF电压探头

    公开(公告)号:US5867020A

    公开(公告)日:1999-02-02

    申请号:US742392

    申请日:1996-10-31

    摘要: An RF sensor having a novel current sensing probe and a voltage sensing probe to measure voltage and current. The current sensor is disposed in a transmission line to link all of the flux generated by the flowing current in order to obtain an accurate measurement. The voltage sensor is a flat plate which operates as a capacitive plate to sense voltage on a center conductor of the transmission line, in which the measured voltage is obtained across a resistance leg of a R-C differentiator circuit formed by the characteristic impedance of a connecting transmission line and a capacitance of the plate, which is positioned proximal to the center conductor.

    摘要翻译: RF传感器具有新颖的电流感测探针和用于测量电压和电流的电压感测探头。 电流传感器设置在传输线中以链接由流动电流产生的所有磁通,以获得准确的测量。 电压传感器是平板,其作为电容板工作,以感测传输线中心导体上的电压,其中测得的电压是通过连接传输特性阻抗形成的RC微分电路电阻腿 线和电容,其位于中心导体的近侧。

    Communication processor for a packet-switched network
    16.
    发明授权
    Communication processor for a packet-switched network 失效
    用于分组交换网络的通信处理器

    公开(公告)号:US4979100A

    公开(公告)日:1990-12-18

    申请号:US176654

    申请日:1988-04-01

    CPC分类号: G06F13/362 H04L12/56

    摘要: A packet switch receives data and processes it for assembly into packages. A bus allows communication between each of the data processing units of the switch and one or more storage units for storing the data packets. Arbitration for deciding which of the processing units will be granted access to the bus is performed by a system which selectively and alterably designates any of at least two different levels of priority of access to the bus for each of the processing units, and the relative percentages of time of access for the different priorty levels. The system assures greater access to the bus by those of the processing units having the higher level of priority. If communication is provided by two buses, the requests for access are alternated between them. The arbitration system provides selective access to the bus in any of a plurality of bus cycles including a read cycle, a write cycle and a read/modify/write cycle, and grants a request for access from a higher priority processing unit within one bus cycle.

    摘要翻译: 分组交换机接收数据并处理它以便组装成包。 总线允许交换机的每个数据处理单元与用于存储数据分组的一个或多个存储单元之间的通信。 用于决定哪个处理单元将被授权访问总线的仲裁由系统执行,该系统选择性地和可变地指定对于每个处理单元访问总线的至少两个不同级别的优先级,并且相对百分比 的不同优先级别的访问时间。 该系统通过具有较高优先级的处理单元的那些来确保对总线的更大的访问。 如果通过两条总线提供通信,则访问请求在它们之间交替。 仲裁系统以包括读周期,写周期和读/修/写周期在内的多个总线周期中的任一个提供对总线的选择性访问,并且在一个总线周期内授予来自较高优先级处理单元的访问请求 。

    Mode canceling composite panel for greater than mass-law transmission
loss in the principal speech bands
    17.
    发明授权
    Mode canceling composite panel for greater than mass-law transmission loss in the principal speech bands 失效
    在主要语音频带中大于质量传播损耗的模式消除复合面板

    公开(公告)号:US4106588A

    公开(公告)日:1978-08-15

    申请号:US709822

    申请日:1976-07-29

    摘要: A composite panel is described in which the face sheets and the core have properties such that the panel produces a double wall resonance near the low frequency end of the principal speech bands and in which the panel produces interaction between the symmetric and antisymmetric mode in the principal speech bands, thereby providing greater than mass-law transmission loss over a substantial portion of the audio frequency spectrum. At frequencies above the principal speech bands effects are determined primarily by the properties of the individual face sheets.

    摘要翻译: 描述了复合面板,其中面板和芯具有使得面板在主要语音频带的低频端附近产生双壁共振的特性,并且其中面板产生主体中的对称和反对称模式之间的相互作用 语音频带,从而在音频频谱的大部分上提供大于质量法的传输损耗。 在主要语音频带以上的频率下,效果主要由个体面板的性质决定。

    Systems and methods for recovering nitric acid from pickling solutions
    18.
    发明授权
    Systems and methods for recovering nitric acid from pickling solutions 有权
    从酸洗液中回收硝酸的系统和方法

    公开(公告)号:US08795620B2

    公开(公告)日:2014-08-05

    申请号:US13230889

    申请日:2011-09-13

    申请人: James A. Moore

    发明人: James A. Moore

    IPC分类号: C01B21/40 C23G1/02 B01D53/56

    摘要: An embodiment of a method for recovering nitric acid from acid pickling solution includes introducing a treating material comprising at least one chemical into a pickling solution comprising free nitric acid. The treating material reacts with at least a portion of the free nitric acid in the pickling solution and produces NOx. A gas stream comprising at least a portion of the NOx is contacted with ozone, thereby forming oxidation products including nitrogen sesquioxide and nitrogen pentoxide. At least a portion of the nitrogen sesquioxide and nitrogen pentoxide is contacted with water, thereby forming nitric acid, and at least a portion of the nitric acid is collected.

    摘要翻译: 从酸洗液中回收硝酸的方法的一个实施方案包括将包含至少一种化学品的处理材料引入包含游离硝酸的酸洗溶液中。 处理材料与酸洗溶液中的至少一部分游离硝酸反应并产生NOx。 包含至少一部分NOx的气流与臭氧接触,从而形成包括三氧化二氮和五氧化二氮的氧化产物。 将至少一部分三氧化二氮和五氧化二氮与水接触,从而形成硝酸,并收集至少一部分硝酸。

    Robust low-frequency spread-spectrum navigation system
    19.
    发明授权
    Robust low-frequency spread-spectrum navigation system 有权
    强大的低频扩频导航系统

    公开(公告)号:US08089408B2

    公开(公告)日:2012-01-03

    申请号:US12609883

    申请日:2009-10-30

    IPC分类号: G01S3/02

    摘要: Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference.

    摘要翻译: 为导航系统描述了方法和装置。 一种过程包括提供分布在整个所需覆盖区域内的多个发射机; 将所述多个发射机锁定到公共定时参考; 从所述多个发射机中的每一个发送信号。 一种装置包括分布在期望覆盖区域内的多个发射机; 其中所述多个发射机中的每一个包括分组发生器; 并且其中所述多个发射器被锁定到公共定时参考。

    Robust low-frequency spread-spectrum navigation system
    20.
    发明授权
    Robust low-frequency spread-spectrum navigation system 有权
    强大的低频扩频导航系统

    公开(公告)号:US07876267B2

    公开(公告)日:2011-01-25

    申请号:US12609902

    申请日:2009-10-30

    IPC分类号: G01S3/02

    摘要: Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference.

    摘要翻译: 为导航系统描述了方法和装置。 一种过程包括提供分布在整个所需覆盖区域内的多个发射机; 将所述多个发射机锁定到公共定时参考; 从所述多个发射机中的每一个发送信号。 一种装置包括分布在期望覆盖区域内的多个发射机; 其中所述多个发射机中的每一个包括分组发生器; 并且其中所述多个发射器被锁定到公共定时参考。