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    Method of alignment for radio frequency measurement instrument and measurement instrument including same
    3.
    发明授权
    Method of alignment for radio frequency measurement instrument and measurement instrument including same 有权
    射频测量仪器及其测量仪器对准方法

    公开(公告)号：US08112238B1

    公开(公告)日：2012-02-07

    申请号：US12410006

    申请日：2009-03-24

    申请人： Joseph M. Gorin

    发明人： Joseph M. Gorin

    IPC分类号： G01R27/00

    CPC分类号： G01R35/005 ,  G01R23/16 ,  H03H7/0161

    摘要： A method is provided for aligning a measurement instrument that includes a tunable filter. The method includes: (i) applying an output signal of an internal noise source of the measurement instrument to the input of the tunable filter, (ii) applying a control signal to the tunable filter to tune the tunable filter to a selected alignment frequency, (iii) measuring a value for a gain alignment parameter of the tunable filter while the output signal of the internal noise source is applied to the input of the tunable filter and the control signal is applied to the tunable filter, (iv) storing the measured gain alignment parameter value in an alignment table in the memory device, and (v) repeating steps (ii) through (iv) for a plurality of selected alignment frequencies in an operating frequency range of the tunable filter.

    摘要翻译： 提供了一种用于对准包括可调滤波器的测量仪器的方法。 该方法包括：（i）将测量仪器的内部噪声源的输出信号施加到可调谐滤波器的输入端，（ii）向可调谐滤波器施加控制信号以将可调滤波器调谐到所选择的对准频率， （iii）测量可调谐滤波器的增益对准参数的值，同时将内部噪声源的输出信号施加到可调滤波器的输入端，并将控制信号施加到可调滤波器，（iv） 在所述存储器件中的对准表中增益对准参数值，以及（v）在所述可调滤波器的工作频率范围内对多个选定的对准频率重复步骤（ii）至（iv）。

    STAGGERED INTERLEAVED NYQUIST REGIONS AVOID GUARD BAND INDUCED HOLES WHEN SAMPLING A BAND LIMITED SIGNAL
    4.
    发明申请
    STAGGERED INTERLEAVED NYQUIST REGIONS AVOID GUARD BAND INDUCED HOLES WHEN SAMPLING A BAND LIMITED SIGNAL 有权

    公开(公告)号：US20080266157A1

    公开(公告)日：2008-10-30

    申请号：US11740656

    申请日：2007-04-26

    申请人： Joseph M. Gorin ,  Kenneth D. Poulton

    发明人： Joseph M. Gorin ,  Kenneth D. Poulton

    IPC分类号： H03M1/12

    CPC分类号： H03M1/0629 ,  H03M1/121

    摘要： Staggered interleaved Nyquist regions associated with differing ADC clock rates (FCLK) avoids spectrum lost through disjoint guard bands at the end of or between adjacent Nyquist regions. The staggered interleaved Nyquist regions overlap by an amount at least as much as is consumed by the guard bands. Selectable anti-aliasing filters associated with each Nyquist region and its ADC clock rate are used to enforce the staggered Nyquist regions and their various guard bands. For example, and neglecting guard bands, an initial raw band of operation RB1 may be the First Nyquist region for a basic sampling frequency Fs. An adjacent raw band of operation RB2 that overlaps RB1 may be the Second Nyquist region for an alternate sampling frequency 2Fs/3. An adjacent raw band of operation RB3 that overlaps RB2 may be the Second Nyquist region for the basic sampling frequency Fs. These raw bands interleave and overlap: RB1:DC to Fs/21st Nyq. for FCLK = Fs RB2:(⅔)Fs − (½)(⅔Fs) = Fs/3 to2nd Nyq. for FCLK = 2Fs/3 2(2Fs/3)/2 = 2Fs/3 RB3:Fs − (½)Fs = Fs/2 to 2(Fs/2) = Fs2nd Nyq. for FCLK = Fs In this example the smallest overlap is Fs/6. We then select widths for guard bands that do not exceed Fs/6. Additional ADC clock rates and anti-aliasing filters may be used to operate in still higher Nyquist regions.

    Signal analyzer having independent analysis and display scales
    5.
    发明授权
    Signal analyzer having independent analysis and display scales 失效
    信号分析仪具有独立的分析和显示比例

    公开(公告)号：US06370484B1

    公开(公告)日：2002-04-09

    申请号：US09513715

    申请日：2000-02-25

    申请人： Joseph M Gorin ,  David D Sharrit

    发明人： Joseph M Gorin ,  David D Sharrit

    IPC分类号： G01R2300

    CPC分类号： G01R15/005

    摘要： A signal analyzer has an analysis scale and a display scale that are independently selectable. The signal analyzer receives a first representation of an applied signal and provides from the first representation at least two alternative representations. A first selective input enables a designated one of the alternative representations to be applied to a filter to reduce variance of the designated representation. The signal analyzer then converts the received one of the alternative representations having reduced variance to at least two alternative display scales. A second selective input enables a designated one of the alternative display scales to be displayed on a monitor, display screen or other output device of the measurement instrument or system. Independent control of the first selective input and the second selective input via a user interface enables the analysis scale—the scale, or representation, to which the filter is applied, to be selected independently of the scale on which the representation having reduced variance is displayed.

    摘要翻译： 信号分析仪具有可独立选择的分析比例和显示比例。 信号分析仪接收所施加的信号的第一表示，并从第一表示提供至少两个替代表示。 第一选择性输入使得指定的替代表示可应用于滤波器以减少指定表示的方差。 然后，信号分析器将具有减小的方差的所接收到的替代表示之一转换成至少两个替代显示比例。 第二选择输入使指定的替代显示比例尺能够显示在测量仪器或系统的监视器，显示屏或其他输出装置上。 通过用户界面对第一选择输入和第二选择性输入的独立控制使得能够独立于显示具有减小的方差的表示的比例被显示来分析应用了滤波器的比例或表示的分析比例 。

    Autoranging apparatus and method for improved dynamic ranging in analog to digital converters
    6.
    发明授权
    Autoranging apparatus and method for improved dynamic ranging in analog to digital converters 失效
    用于改善模数转换器动态范围的自动调节装置和方法

    公开(公告)号：US5844512A

    公开(公告)日：1998-12-01

    申请号：US901490

    申请日：1997-07-28

    申请人： Joseph M. Gorin ,  Roger D. Sheppard

    发明人： Joseph M. Gorin ,  Roger D. Sheppard

    IPC分类号： H03M1/06 ,  H03M1/18

    CPC分类号： H03M1/0629 ,  H03M1/187

    摘要： An autoranging apparatus and method for an analog-to-digital converter (ADC) which uses a proposed gain detector including a peak of absolute detector and a quantizer to determine a proposed gain, and a amplifier gain setting rule processor in parallel with an anti-aliasing (AA) filter. The rule processor generates a current gain from inputs including the current gain, proposed gain, and a resolution bandwidth (RBW) value. The current gain is used to set a variable amplifier before the signal is sampled & held, and then converted to a digital word via the ADC. A variable bandpass filter can additionally be used before the AA filter to produce a pre-filtered signal. The pre-filtered signal would similarly be processed by the proposed gain detector. The resulting digital word is scaled down again through values stored in a look-up table. The look-up table is generated via a calibration routine which determines with certain precision the variable gain levels for the particular amplifier device used.

    摘要翻译： 一种用于模拟 - 数字转换器（ADC）的自动量程设备和方法，其使用包括绝对检测器和量化器的峰值的所提出的增益检测器来确定所提出的增益，以及放大器增益设置规则处理器， 混叠（AA）滤波器。 规则处理器从包括当前增益，提出的增益和分辨率带宽（RBW））的输入产生电流增益。 电流增益用于在信号采样和保持之前设置可变放大器，然后通过ADC转换为数字字。 另外可以在AA滤波器之前使用可变带通滤波器来产生预滤波信号。 预滤波信号将类似地由所提出的增益检测器处理。 通过存储在查找表中的值再次缩小所得数字字。 通过校准程序产生查找表，该校准程序以特定的精度确定所使用的特定放大器装置的可变增益水平。

    Mode selection methods for signal analyzers having alternative swept and fast fourier transform modes of operation
    8.
    发明授权
    Mode selection methods for signal analyzers having alternative swept and fast fourier transform modes of operation 有权
    具有替代的扫描和快速傅立叶变换操作模式的信号分析器的模式选择方法

    公开(公告)号：US06335615B1

    公开(公告)日：2002-01-01

    申请号：US09534188

    申请日：2000-03-24

    申请人： Joseph M Gorin

    发明人： Joseph M Gorin

    IPC分类号： G01R2302

    CPC分类号： G01R13/345

    摘要： A mode selection method for signal analyzers having alternative swept and Fast Fourier Transform (FFT) modes of operation enables tradeoffs between measurement speed and dynamic range to be optimized in selecting between the alternative operating modes. The method includes setting the signal analyzer to either a manual state or an automatic state according to a first input to a user interface. When the manual state is set, the analyzer is operated in either the swept operating mode or the FFT operating mode according to a second input to the user interface. When the automatic measurement state is set, a third input to the user interface determines whether measurement speed or dynamic range is optimized. Measurement speed is optimized according to a first optimization scheme and dynamic range is optimized according to a second optimization scheme.

    摘要翻译： 具有替代的扫描和快速傅里叶变换（FFT）操作模式的信号分析器的模式选择方法使得在选择操作模式之间优化测量速度和动态范围之间的折衷。 该方法包括根据用户界面的第一输入将信号分析仪设置为手动状态或自动状态。 当设置手动状态时，根据用户界面的第二输入，分析仪以扫描操作模式或FFT操作模式操作。 当设置了自动测量状态时，用户接口的第三输入确定测量速度或动态范围是否被优化。 根据第一优化方案优化测量速度，并根据第二优化方案优化动态范围。

    SPECTRUM ANALYZERS WITH DYNAMIC RANGE INDICATOR AND METHODS OF USE
    9.
    发明申请
    SPECTRUM ANALYZERS WITH DYNAMIC RANGE INDICATOR AND METHODS OF USE 有权
    具有动态范围指示器的光谱分析仪及其使用方法

    公开(公告)号：US20100156438A1

    公开(公告)日：2010-06-24

    申请号：US12339234

    申请日：2008-12-19

    申请人： Joseph M. Gorin ,  Corydon Joseph Boyan

    发明人： Joseph M. Gorin ,  Corydon Joseph Boyan

    IPC分类号： G01R23/20

    CPC分类号： G01R23/16

    摘要： An apparatus for measuring spectral components of a signal is described. The apparatus comprises a measurement acquisition unit configured to receive an input signal and to provide a measurement trace. The apparatus also comprises a model module configured to model one or more of a phase noise from the apparatus, a broadband noise from the apparatus, and a third order intermodulation (TOI) product from the apparatus. The apparatus also comprises a display configured to show one or more of the phase noise from the apparatus, the broadband noise from the apparatus, and the TOI product from the apparatus.

    摘要翻译： 描述了用于测量信号的频谱分量的装置。 该装置包括测量获取单元，其被配置为接收输入信号并提供测量迹线。 该装置还包括模型模块，该模块模块被配置为对来自装置的相位噪声，来自装置的宽带噪声和来自该装置的三阶互调（TOI）乘积的一个或多个进行建模。 该装置还包括被配置为显示来自装置的一个或多个相位噪声，来自装置的宽带噪声和来自该装置的TOI产品的显示器。