Method and apparatus for inducing ultrasonic waves into railroad rails
    2.
    发明授权
    Method and apparatus for inducing ultrasonic waves into railroad rails 有权
    将超声波引入轨道轨道的方法和装置

    公开(公告)号:US06742392B2

    公开(公告)日:2004-06-01

    申请号:US10283424

    申请日:2002-10-29

    IPC分类号: G01N2904

    摘要: A method and apparatus for nondestructive testing a railroad rail is provided. The method includes locating at least one magnetic exciter adjacent to the rail, the at least one magnetic exciter includes an emitting end and a longitudinal axis extending perpendicularly through the emitting end, discharging the energy storage circuit through the at least one magnetic exciter such that only a magnetic pulse enters the rail at a location of the exciter, and controlling a shape of the magnetic pulse. The apparatus includes at least one magnetic exciter adjacent to a rail, a energy storage circuit electrically coupled to the at least one magnetic exciter the energy storage circuit is configured to supply a shaped current pulse to the at least one exciter, and a power source electrically coupled to the energy storage circuit.

    摘要翻译: 提供了一种铁路轨道非破坏性测试方法和装置。 该方法包括定位至少一个与轨道相邻的磁激励器,所述至少一个磁激励器包括发射端和垂直延伸穿过发射端的纵向轴线,通过至少一个励磁器将能量存储电路放电,使得只有 磁脉冲在励磁机的位置进入导轨,并控制磁脉冲的形状。 所述设备包括至少一个与轨道相邻的磁激励器,电耦合到所述至少一个励磁机的能量存储电路,所述能量存储电路被配置为向所述至少一个励磁机提供成形的电流脉冲,以及电源 耦合到能量存储电路。

    Instrumentation privacy methods and apparatuses
    3.
    发明授权
    Instrumentation privacy methods and apparatuses 有权
    仪器隐私方法和设备

    公开(公告)号:US07426272B2

    公开(公告)日:2008-09-16

    申请号:US10304407

    申请日:2002-11-26

    IPC分类号: H04L9/00

    CPC分类号: H04L9/0662 H04L2209/80

    摘要: The present invention provides methods and apparatuses for implementing communications privacy on a class of two-way wireless control communications. The methods and apparatuses of the present invention are cryptographic in nature and are built on a symmetric cryptographic algorithm structure. The cryptographic algorithm structure generates keytext on a frame-by-frame basis and both directions of the communications control link are served by the same keytext frames. The methods and apparatuses of the present invention utilize a single outbound/inbound cryptographic generator, such as a shrinking generator or the like designed using six-sigma tools in order to ensure, within a predetermined probability, that the non-fixed encryption time does not cause operational problems.

    摘要翻译: 本发明提供了用于实现一类双向无线控制通信的通信隐私的方法和装置。 本发明的方法和装置本质上是加密的,并且建立在对称密码算法结构上。 密码算法结构在逐帧的基础上产生密钥文本,通信控制链路的两个方向由相同的密钥文本帧服务。 本发明的方法和装置利用单个出站/入站加密发生器,例如使用六西格玛工具设计的收缩发生器等,以便在预定概率内确保非固定加密时间不 造成操作问题。

    Apparatus for monitoring temperature and method for operating same
    4.
    发明授权
    Apparatus for monitoring temperature and method for operating same 有权
    用于监测温度的装置及其操作方法

    公开(公告)号:US07215212B2

    公开(公告)日:2007-05-08

    申请号:US10822322

    申请日:2004-04-12

    IPC分类号: G01K7/00 H03B5/24 H03K3/03

    CPC分类号: H03K3/0315 G01K7/01

    摘要: The present invention is directed to a system that enables the simultaneous remote monitoring of a plurality of infants' skin temperatures. The system comprises an electronic circuit that combines the functions of sensoring and multiple-channel transmitting, a pre-deployment temperature bath for calibration of the temperature sensor(s), and a receiving and reporting station for centralized monitoring the infants' skin temperatures. The present invention is further directed to a temperature sensor that measures the temperature and transmits the data in multiple channels to a remote receiver. In one embodiment, the temperature sensor comprises a ring oscillator, having a plurality of odd number of inverters, and the ring oscillator is capable of utilizing less than all of the inverters in the ring to modulate the frequency of the signal. In another embodiment, the temperature sensor comprises one inverter and a plurality of delay elements and sensor transmits phase shifted signals to modulate the signals. A signal processing method is also disclosed.

    摘要翻译: 本发明涉及能够同时远程监测多个婴儿皮肤温度的系统。 该系统包括组合传感和多通道传输功能的电子电路,用于校准温度传感器的预部署温度浴,以及用于集中监控婴儿皮肤温度的接收和报告站。 本发明还涉及一种温度传感器,其测量温度并将多个通道中的数据传输到远程接收器。 在一个实施例中,温度传感器包括具有多个奇数个反相器的环形振荡器,并且环形振荡器能够利用小于环中的全部反相器来调制信号的频率。 在另一个实施例中,温度传感器包括一个逆变器,并且多个延迟元件和传感器传输相移信号以调制信号。 还公开了一种信号处理方法。

    Systems and methods for short range RF communication
    5.
    发明授权
    Systems and methods for short range RF communication 失效
    短距离射频通信的系统和方法

    公开(公告)号:US08259753B2

    公开(公告)日:2012-09-04

    申请号:US11768684

    申请日:2007-06-26

    IPC分类号: H04J3/24

    摘要: A method transmitting a message over at least one of a plurality of channels of a communications network is provided. The method comprises the steps of detecting a presence of jamming pulses in the at least one of the plurality of channels. The characteristics of the jamming pulses in the at least one of the plurality of channels is determined wherein the determined characteristics define at least interstices between the jamming pulses. The message is transmitted over the at least one of the plurality of channels wherein the message is transmitted within the interstices of the jamming pulse determined from the step of determining characteristics of the jamming pulses.

    摘要翻译: 提供了一种通过通信网络的多个信道中的至少一个发送消息的方法。 该方法包括以下步骤:检测多个通道中的至少一个中的干扰脉冲的存在。 确定多个通道中的至少一个通道中的干扰脉冲的特性,其中确定的特性至少限定干扰脉冲之间的间隙。 该消息通过多个信道中的至少一个发送,其中消息在从确定干扰脉冲的特性的步骤确定的干扰脉冲的间隙内传送。

    SYSTEMS AND METHODS FOR SHORT RANGE RF COMMUNICATION
    6.
    发明申请
    SYSTEMS AND METHODS FOR SHORT RANGE RF COMMUNICATION 失效
    短距离通信系统与方法

    公开(公告)号:US20110038268A1

    公开(公告)日:2011-02-17

    申请号:US11768684

    申请日:2007-06-26

    IPC分类号: H04W24/00

    摘要: A method transmitting a message over at least one of a plurality of channels of a communications network is provided. The method comprises the steps of detecting a presence of jamming pulses in the at least one of the plurality of channels. The characteristics of the jamming pulses in the at least one of the plurality of channels is determined wherein the determined characteristics define at least interstices between the jamming pulses. The message is transmitted over the at least one of the plurality of channels wherein the message is transmitted within the interstices of the jamming pulse determined from the step of determining characteristics of the jamming pulses.

    摘要翻译: 提供了一种通过通信网络的多个信道中的至少一个发送消息的方法。 该方法包括以下步骤:检测多个通道中的至少一个中的干扰脉冲的存在。 确定多个通道中的至少一个通道中的干扰脉冲的特性,其中确定的特性至少限定干扰脉冲之间的间隙。 该消息通过多个信道中的至少一个发送,其中消息在从确定干扰脉冲的特性的步骤确定的干扰脉冲的间隙内传送。

    Methods and systems for prioritizing data transferred on a Local Area Network
    8.
    发明授权
    Methods and systems for prioritizing data transferred on a Local Area Network 有权
    在局域网上传输数据的优先顺序的方法和系统

    公开(公告)号:US07548512B2

    公开(公告)日:2009-06-16

    申请号:US10358829

    申请日:2003-02-06

    IPC分类号: H04L12/26

    摘要: A method of prioritizing messages on a Local Area Network comprises receiving a digitized incoming message, comparing a message signature of the incoming message with a stored priority message signature, passing non-priority messages to a standard Ethernet protocol stack for processing, storing priority messages temporarily, preventing priority messages from being processed in the standard Ethernet protocol stack, and handling priority messages using a simplified protocol stack designed to process a specific data packet type. This method may be performed by an Application Specific Integrated Circuit (ASIC) inserted between an Ethernet PHY layer and Ethernet MAC layer on a Network Interface Card of a host device. In particular, automated machinery control systems using the Ethernet protocol for networking are intended to benefit from the prioritizing method and implementation.

    摘要翻译: 一种在局域网上对消息进行优先排序的方法包括接收数字化的进入消息,将传入消息的消息签名与存储的优先消息签名进行比较,将非优先级消息传递到标准以太网协议栈进行处理,临时存储优先消息 防止在标准以太网协议栈中处理优先级消息,以及使用被设计为处理特定数据分组类型的简化协议栈来处理优先级消息。 该方法可以由插入主机设备的网络接口卡上的以太网PHY层和以太网MAC层之间的专用集成电路(ASIC)来执行。 特别地,使用以太网协议进行网络化的自动机械控制系统旨在从优先级方法和实现中受益。

    Short range RF communication for jet engine control
    9.
    发明授权
    Short range RF communication for jet engine control 失效
    用于喷气发动机控制的短程射频通信

    公开(公告)号:US07236503B2

    公开(公告)日:2007-06-26

    申请号:US10082382

    申请日:2002-02-26

    IPC分类号: H04J3/12

    摘要: A method transmitting a message over at least one of a plurality of radio frequency (RF) channels of an RF communications network is provided. The method comprises the steps of detecting a presence of jamming pulses in the at least one of the plurality of RF channels. The characteristics of the jamming pulses in the at least one of the plurality of RF channels is determined wherein the determined characteristics define at least interstices between the jamming pulses. The message is transmitted over the at least one of the plurality of RF channels wherein the message is transmitted within the interstices of the jamming pulse determined from the step of determining characteristics of the jamming pulses.

    摘要翻译: 提供了通过RF通信网络的多个射频(RF)信道中的至少一个发送消息的方法。 该方法包括以下步骤:检测多个RF信道中的至少一个中的干扰脉冲的存在。 确定多个RF信道中的至少一个RF信道中的干扰脉冲的特性,其中所确定的特性至少限定干扰脉冲之间的间隙。 该消息通过多个RF信道中的至少一个发送,其中消息在从确定干扰脉冲的特性的步骤确定的干扰脉冲的间隙内传输。

    MEMS DEVICES AND REMOTE SENSING SYSTEMS UTILIZING THE SAME
    10.
    发明申请
    MEMS DEVICES AND REMOTE SENSING SYSTEMS UTILIZING THE SAME 审中-公开
    MEMS器件和远程感测系统使用它们

    公开(公告)号:US20100156629A1

    公开(公告)日:2010-06-24

    申请号:US12360144

    申请日:2009-01-27

    IPC分类号: G08B21/00

    摘要: A remote sensing system comprises a micro-electromechanical sensor (MEMS) device comprising a sensing element, an exciting element to resonate the sensing element at resonant frequency from a remote location by transmitting signals comprising any of acoustic signals, optical signals, radio frequency signals, or magnetic induction signals, and a reader circuitry to read an original frequency of the sensing element from a remote location for determining a condition to which the MEMS device is exposed using signals comprising any of acoustic signals, optical signals, radio frequency signals, or magnetic induction signals.

    摘要翻译: 遥感系统包括微机电传感器(MEMS)装置,其包括感测元件,通过发射包括任何声信号,光信号,射频信号的信号,使来自远程位置的谐振频率的感测元件谐振的激励元件, 或磁感应信号,以及读取器电路,用于从远程位置读取感测元件的原始频率,以使用包括任何声信号,光信号,射频信号或磁性的信号来确定MEMS器件暴露的状况 感应信号。