Method and apparatus for signal detection in ultra wide-band communications

    公开(公告)号:US06630897B2

    公开(公告)日:2003-10-07

    申请号:US10213036

    申请日:2002-08-05

    IPC分类号: H03M160

    摘要: Methods and apparatus for detecting ultra wide-band signals using circuitry having nonlinear dynamics characteristics are disclosed. The receiver circuit can be implemented using a simple tunnel diode or using an op-amp to provide dynamic characteristics. The detector can be used in a variety of modulation schemes, including but not limited to an ON-OFF keying scheme, an M-ary pulse position modulation scheme, and a pulse width modulation scheme. The approach requires only a single frame to detect the signal.

    Antenna for underwater communications
    2.
    发明授权
    Antenna for underwater communications 失效
    天线用于水下通信

    公开(公告)号:US08207901B2

    公开(公告)日:2012-06-26

    申请号:US12449236

    申请日:2008-01-29

    申请人: Jurianto Joe

    发明人: Jurianto Joe

    IPC分类号: H01Q1/34

    CPC分类号: H01Q1/04 H04B13/02

    摘要: An antenna comprises first and second radiating elements for connecting to a first and second potential levels respectively. The first and second potential levels are substantially different for generating an electrostatic field from the first and the second radiating elements. The antenna further comprises first and second field shaping structures for controlling field propagation in a first and second direction respectively. The first and second field shaping structures are interdisplaced for defining a field pathway while the first and second radiating elements are disposed adjacent to the first and second field shaping structures and along the field pathway for directing the electrostatic field in a propagation direction through a liquid medium. More specifically, the propagation direction is defined by the field pathway and substantially perpendicular to at least one of the first and second directions.

    摘要翻译: 天线包括用于分别连接到第一和第二电位电平的第一和第二辐射元件。 第一和第二电位电平基本上不同于用于产生来自第一和第二辐射元件的静电场。 天线还包括用于分别控制第一和第二方向的场传播的第一和第二场成形结构。 第一和第二场成形结构是互相间隔的,用于限定场通路,同时第一和第二辐射元件邻近第一和第二场整形结构设置并且沿着场通路,用于将传播方向上的静电场引导通过液体介质 。 更具体地,传播方向由场路径限定,并且基本上垂直于第一和第二方向中的至少一个。

    Method and apparatus for generating pulses from analog waveforms
    3.
    发明授权
    Method and apparatus for generating pulses from analog waveforms 失效
    用于从模拟波形产生脉冲的方法和装置

    公开(公告)号:US06476744B1

    公开(公告)日:2002-11-05

    申请号:US09835182

    申请日:2001-04-13

    IPC分类号: H03M100

    摘要: A method and apparatus that allows an analog waveform to carry multilevel of information is disclosed. This allows information capacity enhancement in pulse decoding communication system by concatenating several information regions in one cycle of analog waveform.

    摘要翻译: 公开了允许模拟波形承载多级信息的方法和装置。 这允许在脉冲解码通信系统中通过在一个周期的模拟波形中连接几个信息区域来提高信息容量。

    Method and apparatus for generating pulses from analog waveforms
    6.
    发明授权
    Method and apparatus for generating pulses from analog waveforms 失效
    用于从模拟波形产生脉冲的方法和装置

    公开(公告)号:US06259390B1

    公开(公告)日:2001-07-10

    申请号:US09429527

    申请日:1999-10-28

    申请人: Jurianto Joe

    发明人: Jurianto Joe

    IPC分类号: H03M100

    CPC分类号: H03K3/315 H03K3/313

    摘要: A method and apparatus are provided for generating output pulses or oscillations in response to input analog waveforms which involves exciting, with a known but arbitrary analog waveform, a circuit with a variable operating point and having a transfer function characterized by an unstable operating region bounded by a first stable operating region and a second stable operating region. The analog waveform is characterized by having a first information region and a second information region. In response to sensing the first and second information regions, the operating point of the circuit is forced into its unstable and stable regions. This produces a sequence of oscillatory and non-oscillatory behavior at the circuit's output.

    摘要翻译: 提供了一种用于响应于输入模拟波形产生输出脉冲或振荡的方法和装置,其涉及利用已知但任意的模拟波形激励具有可变工作点的电路,并且具有由不稳定操作区域表征的传递函数, 第一稳定操作区域和第二稳定操作区域。 模拟波形的特征在于具有第一信息区域和第二信息区域。 响应于感测第一和第二信息区域,电路的工作点被迫进入其不稳定和稳定的区域。 这在电路的输出端产生一系列振荡和非振荡行为。

    PSK transmitter and correlator receiver for UWB communications system
    7.
    发明授权
    PSK transmitter and correlator receiver for UWB communications system 失效
    用于UWB通信系统的PSK发射机和相关器接收机

    公开(公告)号:US06724269B2

    公开(公告)日:2004-04-20

    申请号:US10213481

    申请日:2002-08-06

    申请人: Jurianto Joe

    发明人: Jurianto Joe

    IPC分类号: H03B912

    摘要: A circuit to generate antipodal PSK signal and a correlator circuit for recovering information from PSK (phase shift keying) UWB transmissions includes providing a circuit component characterized by a transfer function having alternating stable and unstable regions. By setting the operating point in a stable region or an unstable region, a non-oscillatory or an oscillatory output signal can be produced.

    摘要翻译: 产生对称PSK信号的电路和用于从PSK(相移键控)UWB传输恢复信息的相关器电路包括提供由具有交替稳定和不稳定区域的传递函数表征的电路部件。 通过将工作点设置在稳定区域或不稳定区域中,可以产生非振荡或振荡输出信号。

    Method and apparatus for a digital clock multiplication circuit

    公开(公告)号:US06661298B2

    公开(公告)日:2003-12-09

    申请号:US10153427

    申请日:2002-05-21

    IPC分类号: H03B2700

    CPC分类号: H03K5/00006

    摘要: A clock multiplication technique includes driving two oscillatory circuits by an input signal. One of the circuits has an inverted input. The oscillatory circuits are characterized by a transfer function having an unstable region bounded by two stable region. Oscillations produced during operation of each of the circuits in the unstable regions are combined to produce a signal whose frequency is a multiple of the input frequency.

    Circuitry with resistive input impedance for generating pulses from analog waveforms
    9.
    发明授权
    Circuitry with resistive input impedance for generating pulses from analog waveforms 失效
    具有电阻输入阻抗的电路,用于从模拟波形产生脉冲

    公开(公告)号:US06486819B2

    公开(公告)日:2002-11-26

    申请号:US09805845

    申请日:2001-03-13

    IPC分类号: H03M160

    摘要: A decoder for generating output pulses or oscillations in response to input analog waveforms includes a circuit having a variable operating point and having a transfer function characterized by an unstable operating region bounded by a first stable operating region and a second stable operating region. In one embodiment, the circuit is characterized by having a resistive input impedance. The analog waveform forces the operating point of the circuit into its unstable and stable regions to produce oscillatory and non-oscillatory behavior at the circuit's output.

    摘要翻译: 用于响应于输入模拟波形产生输出脉冲或振荡的解码器包括具有可变工作点并具有由第一稳定操作区域和第二稳定操作区域限定的不稳定操作区域所表征的传递函数的电路。 在一个实施例中,电路的特征在于具有电阻输入阻抗。 模拟波形强制电路的工作点进入其不稳定和稳定的区域,以在电路的输出端产生振荡和非振荡的行为。