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    High power electromagnetic pulse driver using an electromagnetic shock line
    1.
    发明授权
    High power electromagnetic pulse driver using an electromagnetic shock line 失效
    大功率电磁脉冲驱动器采用电磁冲击线

    公开(公告)号：US5319665A

    公开(公告)日：1994-06-07

    申请号：US972622

    申请日：1992-11-06

    Applicant: Daniel L. Birx

    Inventor： Daniel L. Birx

    IPC: H01S3/097 ,  H03K3/57 ,  H03K5/12 ,  H03K17/80 ,  H01S3/0975 ,  H03B11/00 ,  H03K3/01 ,  H04B3/04

    CPC classification number: H03K5/12 ,  H03K17/80 ,  H03K3/57 ,  H01S3/097

    Abstract: A high power electromagnetic pulse driver for generating sub-microsecond rise time pulses having energy contents greater than 1 joule includes an electromagnetic pulse compressor and an electromagnetic shock line for compressing the leading edges of those pulses. The shock line may use non-linear materials whose permeability or permittivity vary greatly with varying field strength. One material whose permeability varies by a useful amount is metglass, an amorphous alloy of silicon and iron. The high power electromagnetic pulse driver may drive gas discharge lasers.

    Abstract translation: 用于产生具有大于1焦耳的能量含量的亚微秒上升时间脉冲的高功率电磁脉冲驱动器包括用于压缩那些脉冲的前沿的电磁脉冲压缩器和电磁冲击线。 冲击线可以使用非线性材料，其磁导率或介电常数随着场强的变化而变化很大。 渗透率变化有限的一种材料是玻璃，硅和铁的非晶态合金。 高功率电磁脉冲驱动器可以驱动气体放电激光器。

    Oscillation circuit including MIT device and method of adjusting oscillation frequency of the oscillation circuit
    6.
    发明授权
    Oscillation circuit including MIT device and method of adjusting oscillation frequency of the oscillation circuit 失效
    包括MIT装置的振荡电路和调整振荡电路的振荡频率的方法

    公开(公告)号：US08031022B2

    公开(公告)日：2011-10-04

    申请号：US12531058

    申请日：2008-03-05

    Applicant: Yong-Wook Lee ,  Bong-Jun Kim ,  Hyun-Tak Kim ,  Sung-Youl Choi ,  Byung-Gyu Chae ,  Jung-Wook Lim ,  Sun-Jin Yun

    Inventor： Yong-Wook Lee ,  Bong-Jun Kim ,  Hyun-Tak Kim ,  Sung-Youl Choi ,  Byung-Gyu Chae ,  Jung-Wook Lim ,  Sun-Jin Yun

    IPC: H03B11/00

    CPC classification number: H01L49/003 ,  H03B9/12

    Abstract: Provided are an MIT device-based oscillation circuit including a power source, an MIT device and a variable resistor, in which a generation of an oscillation and an oscillation frequency are determined according to a voltage applied from the power source and a resistance of the variable resistor, and a method of adjusting the oscillation frequency of the oscillation circuit. The MIT device includes an MIT thin film and an electrode thin film connected to the MIT thin film, and generates a discontinuous MIT at an MIT generation voltage, the variable resistor is connected in series to the MIT device, and the power source applies a voltage or an electric current to the MIT device. The generation of an oscillation and an oscillation frequency are determined according to the voltage applied from the power source and the resistance of the variable resistor.

    Abstract translation: 提供了一种基于MIT设备的振荡电路，其包括电源，MIT设备和可变电阻器，其中根据从电源施加的电压和变量的电阻确定振荡和振荡频率的产生 电阻器和调整振荡电路的振荡频率的方法。 MIT装置包括连接到MIT薄膜的MIT薄膜和电极薄膜，并以MIT产生电压产生不连续的MIT，可变电阻器与MIT装置串联连接，并且电源施加电压 或电流到MIT设备。 根据从电源施加的电压和可变电阻器的电阻来确定振荡和振荡频率的产生。

    Active sound reduction apparatus and active noise insulation wall having same
    7.
    发明授权
    Active sound reduction apparatus and active noise insulation wall having same 有权
    主动减噪装置和有源隔音墙具有相同的功能

    公开(公告)号：US07613307B2

    公开(公告)日：2009-11-03

    申请号：US11481044

    申请日：2006-07-06

    Applicant: Keizo Ohnishi ,  Masaharu Nishimura ,  Susumu Teranishi ,  Takanori Arai

    Inventor： Keizo Ohnishi ,  Masaharu Nishimura ,  Susumu Teranishi ,  Takanori Arai

    IPC: A61F11/06 ,  G10K11/16 ,  H03B11/00 ,  G10K11/00

    CPC classification number: E01F8/0094 ,  G10K11/178

    Abstract: An active noise insulation wall includes an active sound reduction apparatus disposed on an upper end surface of a noise insulation wall. The active sound reduction apparatus comprises a combination of an active acoustic control cell and a sound tube. The active acoustic control cell controls a coming noise such that a diffracted sound pressure component of the coming noise at the upper end surface of the noise insulation wall is actively reduced. The sound tube decreases a sound wave of a frequency different from a target frequency of the active acoustic control cell. Thus, the active noise insulation wall can effectively reduce noises including many frequency components.

    Abstract translation: 主动隔音墙包括设置在隔音墙的上端表面上的主动减声装置。 主动式降噪装置包括主动声控单元和声管的组合。 有源音响控制单元控制即将到来的噪音，使噪声隔离壁上端表面的噪音的衍射声压分量被积极地减少。 声管减少与主动声控单元的目标频率不同的频率的声波。 因此，主动隔音墙可以有效地减少噪声，包括许多频率分量。

    Dual tone multiple frequency generator
    8.
    发明授权
    Dual tone multiple frequency generator 失效
    双音多频发生器

    公开(公告)号：US4061886A

    公开(公告)日：1977-12-06

    申请号：US617955

    申请日：1975-09-29

    Applicant: Michael James Callahan, Jr. ,  Gordon Bates Hoffman

    Inventor： Michael James Callahan, Jr. ,  Gordon Bates Hoffman

    IPC: H03B11/00 ,  H03B28/00 ,  H03L7/18 ,  H04L27/26 ,  H04M1/50 ,  H04M1/26

    CPC classification number: H04M1/505

    Abstract: A dual-tone multiple frequency signal generator is provided for use with telecommunications systems, data transfer systems and other applications. The tone encoding system utilizes MOS/LSI integrated circuitry on a single chip powered directly by telephone line voltages. An electronic keyboard circuit provides synchronized pulses to decode single-pole, single-throw keyboard switches by row and column. A crystal-controlled oscillator generates a reference frequency which is divided according to the row and column of an activated keyboard switch to obtain two pulse signals having frequencies representative of the activated switch. The outputs of the divider circuitry are fed to programmed logic array which generates two digitally coded signals each representing a sinusoidal waveform. A digital-to-analog ladder network converts the digitally coded signals to continuous sine waves, and an operational amplifier combines the sinusoidal waveforms to provide a dual-tone output. The integrated circuitry also utilizes electronic switches for the common functions of tone transmission, including applying power to the oscillator, disconnecting the audio transmitter and attenuating the input to the receiver. Complementary-symmetry, metal-oxide semi-conductor elements implement the circuitry design with bi-polar transistors on the same chip performing some of the common function switching.

    Abstract translation: 提供双音多频信号发生器用于电信系统，数据传输系统和其他应用。 音调编码系统在直接由电话线电压供电的单个芯片上使用MOS / LSI集成电路。 电子键盘电路提供同步脉冲，通过行和列解码单刀单掷键盘开关。 晶体振荡器产生根据激活的键盘开关的行和列分割的参考频率，以获得具有表示激活的开关的频率的两个脉冲信号。 分频器电路的输出被馈送到编程逻辑阵列，其产生每个表示正弦波形的两个数字编码信号。 数模转换梯形网将数字编码信号转换为连续正弦波，运算放大器组合正弦波形以提供双音输出。 集成电路还利用电子开关用于音调传输的共同功能，包括向振荡器施加电力，断开音频发射器并衰减到接收机的输入。 互补对称，金属氧化物半导体元件在同一芯片上实现具有双极晶体管的电路设计，执行一些通用功能切换。

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