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    • 3. 发明授权
    • Precision microwave/millimeter wave modulated signal source
    • 精密微波/毫米波调制信号源
    • US06396431B1
    • 2002-05-28
    • US09391881
    • 1999-09-07
    • David J. SwanickGautam MisraKichul Cho
    • David J. SwanickGautam MisraKichul Cho
    • H02K2300
    • H04L27/12
    • The precision microwave/millimeter wave modulated signal source is a relatively low cost, compact, highly accurate and stable signal source covering the 2 to 40 Gigahertz frequency range. The pulse width and amplitude level of the output signal can be changed on every pulse in the signal pulse train. Pulse width range is 5 nanoseconds to 1 millisecond. Pulse repetition intervals can be changed between each pulse set with usable range from 10 nanoseconds to 100 milliseconds. Interval parameters can be adjusted with 1 nanosecond resolutions with stabilities of +/−200 picoseconds. The highly accurate and versatile selection of signal parameters, along with its compact size, makes this design useful as an embedded built in test signal source. This built in signal source can be used for verification of system performance for many electronic warfare systems.
    • 精密微波/毫米波调制信号源是覆盖2至40吉赫兹频率范围的相对低成本,紧凑,高精度和稳定的信号源。 可以在信号脉冲串中的每个脉冲上改变输出信号的脉冲宽度和幅度电平。 脉冲宽度范围为5纳秒至1毫秒。 脉冲重复间隔可以在每个脉冲设置之间改变,可用范围为10纳秒到100毫秒。 间隔参数可以用1纳秒分辨率进行调整,稳定性为+/- 200皮秒。 信号参数的高度精确和多功能选择以及紧凑的尺寸使得该设计作为嵌入式内置测试信号源非常有用。 内置信号源可用于许多电子战系统的系统性能验证。
    • 6. 发明授权
    • Submarine mast autonomous controller and method
    • 潜艇桅杆自主控制器及方法
    • US06693560B2
    • 2004-02-17
    • US10090989
    • 2002-03-04
    • Howard E. KnustKichul Cho
    • Howard E. KnustKichul Cho
    • G08B2300
    • B63G8/38
    • A system and method provides automatic monitoring of data representing the onset of, or occurrence of fault conditions for a submarine mast system. The system is separately programmable and transparently operable with respect to the mast host system that controls mast functions. In a preferred embodiment, a plurality of sensors are in communication with a microprocessor system to record data by time and date of the event. The communication of data from the sensors to the microprocessor is electrically isolated from control signal communications to mast components, and the sensors are further individually opto-isolated. The microprocessor may selectively transfer data on a time-shared basis over host system communication lines to an independent memory collecting submarine fleet data, as an aid in fleet-wide maintenance decision making.
    • 一种系统和方法提供对表示潜艇桅杆系统的故障状态的发生或发生的数据的自动监视。 该系统是独立可编程的,并且相对于控制桅杆功能的桅杆主机系统是可透明操作的。 在优选实施例中,多个传感器与微处理器系统通信以通过事件的时间和日期来记录数据。 从传感器到微处理器的数据通信与控制信号通信与桅杆部件电隔离,并且传感器进一步单独地光隔离。 微处理器可以选择性地将数据通过主机系统通信线路分时传输到独立的存储器来收集潜艇舰队数据,作为在全队维护决策中的帮助。
    • 7. 发明授权
    • Real-time data sorter
    • 实时数据分类器
    • US5704057A
    • 1997-12-30
    • US955388
    • 1992-10-01
    • Kichul Cho
    • Kichul Cho
    • G06F7/24G06F12/02
    • G06F7/24Y10S707/99937
    • An apparatus is provided to sort an incoming stream of data points in termsf data point value and time of occurrence thereof. A first and second memory each have an input for receiving the incoming data stream and an output. Each data point accesses an address of the first memory based upon a corresponding data point value. The value of the accessed address is incremented by one by an incrementing means. The output of the incrementing means is coupled to the first memory to store the incremented value at the accessed address. Each data point value is also indicative of a predetermined offset address stored in the second memory. An address latch is coupled to the first and second memories to generate a concatenated address based on the value of the accessed address (i.e., before it is incremented) and the offset address. Each successive time of occurrence is stored in a storage means at the concatenated address.
    • 提供了一种装置,用于根据数据点值和发生时间来对数据点的输入流进行排序。 第一和第二存储器各具有用于接收输入数据流和输出的输入。 每个数据点基于对应的数据点值来访问第一存储器的地址。 访问地址的值通过递增方式递增1。 递增装置的输出耦合到第一存储器,以将访问地址处的递增值存储。 每个数据点值也表示存储在第二存储器中的预定偏移地址。 地址锁存器被耦合到第一和第二存储器,以基于所访问地址的值(即在增加之前)和偏移地址来产生级联地址。 每个连续发生的时间存储在连接地址的存储装置中。
    • 8. 发明授权
    • Multi-function radio frequency signal warning system
    • 多功能射频信号警示系统
    • US06177902B1
    • 2001-01-23
    • US09349358
    • 1999-07-01
    • William P. HuntleyDavid J. SwanickKichul ChoJohn D. Borla
    • William P. HuntleyDavid J. SwanickKichul ChoJohn D. Borla
    • G01S740
    • G01S7/40G01S7/021G01S7/04
    • A multi-function radio frequency (RF) signal warning system detects different types of RF signals, such as radar signals, provided in various RF bands and provides an indication of the type of radar signal and the RF band. The system detects pulsed radar signals having different pulse repetition frequency (PRF) ranges as well as high duty cycle radar signals and continuous wave radar signals. The system includes a receiver processor that detects the radar signals, video amplifies the radar signals with baseline correction, and processes the radar signals to determine the type of radar signal, e.g., the RF band and PRF range. The receiver processor generates audio and visual control signals and transmits the control signals to one or more remote units. The remote units receive the audio control signals and generate an audible alarm. The remote units receive the visual control signals and illuminate one or more visual indicators, such as LEDs, that indicate the RF band of the radar signal and the PRF range of the radar signal. The remote units can also select one or more bands in which the audio alarm is enabled or disabled. One of the remote units further controls testing and calibration functions in the multi-function RF signal warning system.
    • 多功能射频(RF)信号警告系统检测各种RF频带中提供的不同类型的RF信号,例如雷达信号,并提供雷达信号类型和RF频带的指示。 该系统检测到具有不同脉冲重复频率(PRF)范围以及高占空比雷达信号和连续波雷达信号的脉冲雷达信号。 该系统包括检测雷达信号的接收机处理器,利用基线校正视频放大雷达信号,并处理雷达信号以确定雷达信号的类型,例如RF频带和PRF范围。 接收器处理器产生音频和视觉控制信号,并将控制信号发送到一个或多个远程单元。 远程单元接收音频控制信号并产生一个声音报警。 远程单元接收视觉控制信号并照亮一个或多个指示雷达信号的RF频带和雷达信号的PRF范围的诸如LED的视觉指示器。 远程单元还可以选择其中启用或禁用音频报警的一个或多个频段。 其中一个远程单元进一步控制多功能射频信号警告系统中的测试和校准功能。