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87 条记录 (耗时 0.042 秒)

    Adaptive radio transceiver with CMOS offset PLL
    81.
    发明授权
    Adaptive radio transceiver with CMOS offset PLL 失效
    具有CMOS偏移PLL的自适应无线电收发器

    公开(公告)号：US07082293B1

    公开(公告)日：2006-07-25

    申请号：US09698498

    申请日：2000-10-27

    申请人： Ahmadreza Rofougaran ,  Maryam Rofougaran ,  Jacob Rael ,  Masood Syed ,  Brima Ibrahim ,  Stephen Wu ,  Hung-Ming Chien ,  Meng-An Pan

    发明人： Ahmadreza Rofougaran ,  Maryam Rofougaran ,  Jacob Rael ,  Masood Syed ,  Brima Ibrahim ,  Stephen Wu ,  Hung-Ming Chien ,  Meng-An Pan

    IPC分类号： H04B1/06 ,  H04B7/00

    CPC分类号： H03L7/0995 ,  H03L7/18 ,  H03L2207/12 ,  H04B1/707 ,  H04B1/713 ,  H04B17/101 ,  H04B17/14 ,  H04B17/19 ,  H04B17/20

    摘要： An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to determine the gain, frequency characteristics, selectivity, noise floor, and distortion behavior of the receiver, transmitter and LO generator. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

    摘要翻译： 在说明书和附图中描述和示出的本发明的示例性实施例是具有接收器，发射器，本地振荡器（LO）发生器，控制器和自检单元的收发器。 所有这些组件都可以封装以集成到单个IC中，其中包括过滤器和电感器等组件。 用于接收机，发射机和LO发生器的自适应编程和校准的控制器。 自检单元产生用于确定接收机，发射机和LO发生器的增益，频率特性，选择性，本底噪声和失真特性。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

    VCO with power supply rejection enhancement circuit
    82.
    发明授权
    VCO with power supply rejection enhancement circuit 有权
    VCO带电源抑制增强电路

    公开(公告)号：US07042302B2

    公开(公告)日：2006-05-09

    申请号：US10813275

    申请日：2004-03-31

    申请人： Hung-Ming Chien

    发明人： Hung-Ming Chien

    IPC分类号： H03B1/04 ,  H03L5/00

    CPC分类号： H03B5/04

    摘要： An oscillating circuit having a noise reduction circuit is disclosed. The noise reduction circuit is coupled to the current source for the oscillating circuit. The noise reduction circuit reduces a bias noise component from a bias current, and a supply noise component from a supply current. The noise reduction circuit is coupled to the current source at a gate and a supply for the current source. The noise reduction circuit includes a filter coupled to the gate of the current source that reduces the bias noise component. The noise reduction circuit also includes a degeneration circuit coupled to the supply of the current source that reduces the supply noise component. The current source generates an input signal to control the oscillating circuit with reduced noise.

    摘要翻译： 公开了一种具有降噪电路的振荡电路。 噪声降低电路耦合到用于振荡电路的电流源。 噪声降低电路从偏置电流和来自电源电流的电源噪声分量中减少偏置噪声分量。 噪声降低电路在栅极处耦合到电流源并且用于电流源。 噪声降低电路包括耦合到电流源的栅极的滤波器，其降低偏置噪声分量。 噪声降低电路还包括耦合到电流源的电源的退化电路，其降低电源噪声分量。 电流源产生一个输入信号，以减少噪声来控制振荡电路。

    Oscillator with quadrature output in a cross-coupled configuration
    83.
    发明授权
    Oscillator with quadrature output in a cross-coupled configuration 失效
    具有交叉耦合配置的正交输出的振荡器

    公开(公告)号：US06995625B2

    公开(公告)日：2006-02-07

    申请号：US10813261

    申请日：2004-03-31

    申请人： Hung-Ming Chien

    发明人： Hung-Ming Chien

    IPC分类号： H03B5/20 ,  H03B27/00 ,  H04B1/26 ,  H04B1/38

    CPC分类号： H03B5/20 ,  H03B27/00

    摘要： An oscillator that provides a quadrature output and has a cross-coupled configuration is disclosed. The oscillator generates an output signal having a frequency. Two phase shift circuits, or stages, are activated by a control signal to provide phase shifts within the oscillator. Each phase shift circuit includes poles to provide the phase shift. A pole includes a varactor to tune, adjust or vary the phase shift accordingly.

    摘要翻译： 公开了提供正交输出并具有交叉耦合配置的振荡器。 振荡器产生具有频率的输出信号。 两个相移电路或级由控制信号激活，以提供振荡器内的相移。 每个相移电路包括提供相移的极点。 极包括一个变容二极管，用于调节，调整或改变相移。

    RF signal peak detector
    84.
    发明授权
    RF signal peak detector 失效
    RF信号峰值检测器

    公开(公告)号：US06977531B2

    公开(公告)日：2005-12-20

    申请号：US10973722

    申请日：2004-10-26

    申请人： Hung-Ming Chien

    发明人： Hung-Ming Chien

    IPC分类号： G01R19/00 ,  G01R19/04 ,  H03K5/153 ,  H04B1/00 ,  H04B15/00 ,  H04B17/00

    CPC分类号： G01R19/04 ,  H04B17/318

    摘要： A method for determining a peak value of a radio frequency (RF) signal begins by receiving an RF signal. The method continues by high pass filtering the RF signal to produce a first input. The method continues by rectifying the first input signal with respect to a rectifying input to produce a rectified signal. The method continues by low pass filtering the rectified signal to produce the peak value.

    摘要翻译： 用于确定射频（RF）信号的峰值的方法从接收RF信号开始。 该方法继续通过对RF信号进行高通滤波以产生第一输入。 该方法通过针对整流输入整流第一输入信号来产生整流信号。 该方法通过对整流信号进行低通滤波来产生峰值值。

    Varactor-based ring oscillator
    86.
    发明申请
    Varactor-based ring oscillator 失效
    基于变容二极管的环形振荡器

    公开(公告)号：US20050225404A1

    公开(公告)日：2005-10-13

    申请号：US10813276

    申请日：2004-03-31

    申请人： Hung-Ming Chien

    发明人： Hung-Ming Chien

    IPC分类号： H03B5/20 ,  H03B27/00

    CPC分类号： H03B5/20 ,  H03B27/00 ,  H03B2200/004

    摘要： A varactor-based ring oscillator to produce an output signal and method therefore are disclosed. The ring oscillator includes a first phase shift circuit having a first pole. The ring oscillator also includes a second phase shift circuit having a second pole and a third phase shift circuit having a third pole. The output of the third phase shift circuit is cross-coupled to the input of the first phase shift circuit. A phase shift circuit of the ring oscillator includes a pole that has a varactor and generates phase shift for the phase shift circuit. The varactor can be adjusted or varied to tune, the phase shift, the phase shift circuit and the frequency of the oscillator. If the varactor is in the final phase shift circuit of the oscillator, the varactor is coupled to a diode that supplies voltage to the varactor. A voltage control signal is applied to the pole, and to the oscillator, to generate the output signal having a specified frequency.

    摘要翻译： 公开了一种用于产生输出信号的基于变容二极管的环形振荡器和方法。 环形振荡器包括具有第一极的第一相移电路。 环形振荡器还包括具有第二极点的第二相移电路和具有第三极点的第三相移电路。 第三移相电路的输出与第一相移电路的输入交叉耦合。 环形振荡器的相移电路包括具有变容二极管并产生相移电路的相移的极点。 可以调整或改变变容二极管以调谐，相移，相移电路和振荡器的频率。 如果变容二极管位于振荡器的最终相移电路中，则变容二极管耦合到向变容二极管供电的二极管。 电压控制信号施加到极点和振荡器，以产生具有指定频率的输出信号。