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    Integrated clock generator and timing/frequency reference
    1.
    发明申请
    Integrated clock generator and timing/frequency reference 有权
    集成时钟发生器和定时/频率参考

    公开(公告)号：US20060152293A1

    公开(公告)日：2006-07-13

    申请号：US11384758

    申请日：2006-03-20

    申请人： Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba ,  Justin O'Day ,  Gordon Carichner

    发明人： Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba ,  Justin O'Day ,  Gordon Carichner

    IPC分类号： H03B1/00

    CPC分类号： G06F1/04 ,  G06F1/08 ,  H03B5/06 ,  H03B5/1203 ,  H03B5/1215 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/1253 ,  H03B5/1256 ,  H03B5/1265 ,  H03B2201/025 ,  H03J1/0008 ,  H03J2200/10 ,  H03L1/022 ,  H03L3/00 ,  H03L7/08 ,  H03L7/0812 ,  H03L7/0891 ,  H03L7/099

    摘要： In various embodiments, the invention provides a clock generator and/or a timing and frequency reference using an LC-oscillator topology, having a frequency controller to control and provide a stable resonant frequency, which is integrated with other, second circuitry such as a processor or controller. Frequency stability is provided over variations in a selected parameter such as temperature and fabrication process variations. The various apparatus embodiments include a sensor adapted to provide a signal in response to at least one parameter of a plurality of parameters; and a frequency controller adapted to modify the resonant frequency in response to the second signal. In exemplary embodiments, the sensor is implemented as a current source responsive to temperature fluctuations, and the frequency controller is implemented as a plurality of controlled reactance modules which are selectively couplable to the resonator or to one or more control voltages. The controlled reactance modules may include fixed or variable capacitances or inductances, and may be binary weighted. Arrays of resistive modules are also provided, to generate one or more control voltages.

    摘要翻译： 在各种实施例中，本发明提供使用LC振荡器拓扑的时钟发生器和/或定时和频率参考，其具有频率控制器以控制和提供稳定的谐振频率，其与其它第二电路（例如处理器 或控制器。 提供了频率稳定性，如选择的参数（如温度和制造工艺变化）的变化。 各种装置实施例包括适于响应于多个参数的至少一个参数提供信号的传感器; 以及频率控制器，其适于响应于所述第二信号来修改所述谐振频率。 在示例性实施例中，响应于温度波动将传感器实现为电流源，并且频率控制器被实现为可选择地耦合到谐振器或一个或多个控制电压的多个受控电抗模块。 受控电抗模块可以包括固定或可变电容或电感，并且可以是二进制加权的。 还提供了电阻模块的阵列，以产生一个或多个控制电压。

    Multi-terminal harmonic oscillator integrated circuit with frequency calibration and frequency configuration
    2.
    发明申请
    Multi-terminal harmonic oscillator integrated circuit with frequency calibration and frequency configuration 有权
    多端谐波振荡器集成电路，具有频率校准和频率配置

    公开(公告)号：US20070222528A1

    公开(公告)日：2007-09-27

    申请号：US11805368

    申请日：2007-05-23

    申请人： Scott Pernia ,  Michael McCorquodale ,  Sundus Kubba ,  Justin O'Day ,  Gordon Carichner ,  Eric Marsman

    发明人： Scott Pernia ,  Michael McCorquodale ,  Sundus Kubba ,  Justin O'Day ,  Gordon Carichner ,  Eric Marsman

    IPC分类号： G01R23/00

    CPC分类号： H03L1/022 ,  H03B5/1212 ,  H03B5/1221 ,  H03B5/1228 ,  H03B5/124 ,  H03B2200/0038 ,  H03B2201/025 ,  H03J2200/10 ,  H03L1/023 ,  H03L7/089

    摘要： Exemplary embodiments of the invention provide a reference harmonic oscillator integrated circuit having three or more terminals, with systems and methods for calibrating the harmonic oscillator to a selected first frequency using a limited number of terminals. An exemplary apparatus comprises: a reference harmonic oscillator, a first terminal to receive a supply voltage, a second terminal to receive a ground potential, a third terminal to provide an output signal having an output frequency, and may also include a fourth terminal. One of the first, second, third or fourth terminals is further adapted for input of a calibration of the first frequency. The exemplary apparatus may enter calibration and testing modes in response to various commands such as a calibration mode signal, and may also be configured through one of the terminals for output frequency selection, spread-spectrum output, and output voltage levels.

    摘要翻译： 本发明的示例性实施例提供了具有三个或更多个端子的参考谐波振荡器集成电路，其具有使用有限数量的端子将谐波振荡器校准为所选择的第一频率的系统和方法。 示例性装置包括：参考谐波振荡器，用于接收电源电压的第一端子，用于接收地电位的第二端子，第三端子以提供具有输出频率的输出信号，并且还可以包括第四端子。 第一，第二，第三或第四端子中的一个进一步适于输入第一频率的校准。 示例性装置可以响应于诸如校准模式信号的各种命令而进入校准和测试模式，并且还可以通过用于输出频率选择，扩频输出和输出电压电平的一个端子进行配置。

    Discrete clock generator and timing/frequency reference
    3.
    发明申请
    Discrete clock generator and timing/frequency reference 有权
    离散时钟发生器和定时/频率参考

    公开(公告)号：US20060158268A1

    公开(公告)日：2006-07-20

    申请号：US11384973

    申请日：2006-03-20

    申请人： Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba ,  Justin O'Day ,  Gordon Carichner

    发明人： Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba ,  Justin O'Day ,  Gordon Carichner

    IPC分类号： H03L7/00

    CPC分类号： G06F1/04 ,  G06F1/08 ,  H03B5/06 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1221 ,  H03B5/124 ,  H03B2201/025 ,  H03J1/0008 ,  H03J2200/10 ,  H03L1/00 ,  H03L1/02 ,  H03L1/022 ,  H03L1/025 ,  H03L3/00 ,  H03L7/08 ,  H03L7/0812 ,  H03L7/099 ,  H03L7/183 ,  H03L2207/50

    摘要： In various embodiments, the invention provides a discrete clock generator and/or a timing and frequency reference using an LC-oscillator topology, having a frequency controller to control and provide a stable resonant frequency, which may then be provided to other, second circuitry such as a processor or controller. Frequency stability is provided over variations in a selected parameter such as temperature and fabrication process variations. The various apparatus embodiments include a sensor adapted to provide a signal in response to at least one parameter of a plurality of parameters; and a frequency controller adapted to modify the resonant frequency in response to the second signal. In exemplary embodiments, the sensor is implemented as a current source responsive to temperature fluctuations, and the frequency controller is implemented as a plurality of controlled reactance modules which are selectively couplable to the resonator or to one or more control voltages. The controlled reactance modules may include fixed or variable capacitances or inductances, and may be binary weighted. Arrays of resistive modules are also provided, to generate one or more control voltages.

    摘要翻译： 在各种实施例中，本发明提供使用LC振荡器拓扑的离散时钟发生器和/或定时和频率参考，其具有频率控制器来控制和提供稳定的谐振频率，然后可以将其提供给其它第二电路，例如 作为处理器或控制器。 提供了频率稳定性，如选择的参数（如温度和制造工艺变化）的变化。 各种装置实施例包括适于响应于多个参数的至少一个参数提供信号的传感器; 以及频率控制器，其适于响应于所述第二信号来修改所述谐振频率。 在示例性实施例中，响应于温度波动将传感器实现为电流源，并且频率控制器被实现为可选择地耦合到谐振器或一个或多个控制电压的多个受控电抗模块。 受控电抗模块可以包括固定或可变电容或电感，并且可以是二进制加权的。 还提供了电阻模块的阵列，以产生一个或多个控制电压。

    Frequency calibration for a monolithic clock generator and timing/frequency reference
    4.
    发明申请
    Frequency calibration for a monolithic clock generator and timing/frequency reference 有权
    单片时钟发生器的频率校准和定时/频率参考

    公开(公告)号：US20070222529A1

    公开(公告)日：2007-09-27

    申请号：US11805427

    申请日：2007-05-23

    申请人： Gordon Carichner ,  Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba

    发明人： Gordon Carichner ,  Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba

    IPC分类号： G01R23/00

    CPC分类号： H03L1/00 ,  G01R23/15 ,  H03L1/022 ,  H03L7/099

    摘要： Exemplary embodiments of the invention provide a system, method and apparatus for frequency calibration of a free-running, reference harmonic oscillator. An exemplary system comprises the harmonic oscillator, a frequency divider, a comparator, and a reactance modulator. The reference harmonic oscillator includes a plurality of switchable reactance modules controlled by corresponding coefficients, and provides an oscillation signal having an oscillation frequency, which is divided or multiplied by the frequency divider to provide an output signal having an output frequency. The comparator compares the output frequency to an externally supplied reference frequency using first and second predetermined levels of discrimination, and provides first or second comparison signals when the output frequency is higher or lower than the reference frequency. The reactance modulator determines a plurality of coefficients to control switching of the plurality of switchable reactance modules to increase or decrease a reactance of the oscillator in response to the first and second comparison signals.

    摘要翻译： 本发明的示例性实施例提供了一种用于自由运行的参考谐波振荡器的频率校准的系统，方法和装置。 示例性系统包括谐波振荡器，分频器，比较器和电抗调制器。 参考谐波振荡器包括由相应系数控制的多个可切换电抗模块，并提供具有振荡频率的振荡信号，该振荡信号被分频器分频或乘以分频器以提供具有输出频率的输出信号。 比较器使用第一和第二预定等级的鉴别比较输出频率与外部提供的参考频率，并且当输出频率高于或低于参考频率时提供第一或第二比较信号。 电抗调制器确定多个系数以控制多个可切换电抗模块的切换，以响应于第一和第二比较信号增加或减小振荡器的电抗。

    Frequency calibration for a monolithic clock generator and timing/frequency reference
    5.
    发明申请
    Frequency calibration for a monolithic clock generator and timing/frequency reference 有权
    单片时钟发生器的频率校准和定时/频率参考

    公开(公告)号：US20060071718A1

    公开(公告)日：2006-04-06

    申请号：US11232409

    申请日：2005-09-20

    申请人： Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba ,  Amar Basu

    发明人： Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba ,  Amar Basu

    IPC分类号： H03L7/00

    CPC分类号： H03B5/06 ,  H03B5/04 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/124 ,  H03B2200/0038 ,  H03B2200/005 ,  H03B2200/0098 ,  H03J2200/10 ,  H03L1/00 ,  H03L1/026 ,  H03L3/00 ,  H03L7/0812 ,  H03L7/089 ,  H03L7/093 ,  H03L7/099 ,  H03L7/183 ,  H03L7/24

    摘要： Exemplary embodiments of the invention provide a system, method and apparatus for frequency calibration of a free-running, harmonic oscillator. A reference oscillator provides a reference frequency. An exemplary system comprises the harmonic oscillator, a frequency divider, a comparator, and a reactance modulator. The oscillator comprises a plurality of switchable reactance modules and a coefficient register, and provides an oscillation signal having an oscillation frequency. The frequency divider provides an output frequency as a fraction of the oscillation frequency. The comparator compares the output and reference frequencies and provides a comparison signal when the output frequency is not substantially equal to the reference frequency. The reactance modulator determines and provides to the coefficient register a first plurality of coefficients to control switching of a first subset of the reactance modules to increase the reactance of the oscillator when the output frequency is greater than the reference frequency, and a second plurality of coefficients to control switching of a second subset of the reactance modules to decrease the reactance of the oscillator when the output frequency is less than the reference frequency.

    摘要翻译： 本发明的示例性实施例提供了一种用于自由运行的谐波振荡器的频率校准的系统，方法和装置。 参考振荡器提供参考频率。 示例性系统包括谐波振荡器，分频器，比较器和电抗调制器。 振荡器包括多个可切换电抗模块和系数寄存器，并提供具有振荡频率的振荡信号。 分频器将输出频率提供为振荡频率的一部分。 比较器比较输出和参考频率，并在输出频率基本上不等于参考频率时提供比较信号。 电抗调制器确定并向系数寄存器提供第一多个系数以控制电抗模块的第一子集的切换，以在输出频率大于参考频率时提高振荡器的电抗，并且第二多个系数 以当输出频率小于参考频率时，控制电抗模块的第二子集的切换以减小振荡器的电抗。

    Frequency controller for a monolithic clock generator and timing/frequency reference
    8.
    发明申请
    Frequency controller for a monolithic clock generator and timing/frequency reference 有权
    单片时钟发生器的频率控制器和定时/频率参考

    公开(公告)号：US20060071734A1

    公开(公告)日：2006-04-06

    申请号：US11232407

    申请日：2005-09-20

    申请人： Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba

    发明人： Michael McCorquodale ,  Scott Pernia ,  Sundus Kubba

    IPC分类号： H03L1/00

    CPC分类号： H03L1/022 ,  H03B5/06 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/124 ,  H03B2201/025 ,  H03L3/00 ,  H03L7/08 ,  H03L7/0812 ,  H03L7/099

    摘要： In various embodiments, the invention provides a frequency controller to control and provide a stable resonant frequency of a clock generator and/or a timing and frequency reference. Such stability is provided over variations in a selected parameter such as temperature and fabrication process variations. The various apparatus embodiments include a sensor adapted to provide a signal in response to at least one parameter of a plurality of parameters; and a frequency controller adapted to modify the resonant frequency in response to the second signal. In exemplary embodiments, the sensor is implemented as a current source responsive to temperature fluctuations, and the frequency controller is implemented as a plurality of controlled reactance modules which are selectively couplable to the resonator or to one or more control voltages. The controlled reactance modules may include fixed or variable capacitances or inductances, and may be binary weighted. Arrays of resistive modules are also provided, to generate one or more control voltages.

    摘要翻译： 在各种实施例中，本发明提供一种频率控制器，用于控制并提供时钟发生器和/或定时和频率参考的稳定谐振频率。 这样的稳定​​性是在所选择的参数如温度和制造工艺变化的变化中提供的。 各种装置实施例包括适于响应于多个参数的至少一个参数提供信号的传感器; 以及频率控制器，其适于响应于所述第二信号来修改所述谐振频率。 在示例性实施例中，响应于温度波动将传感器实现为电流源，并且频率控制器被实现为可选择地耦合到谐振器或一个或多个控制电压的多个受控电抗模块。 受控电抗模块可以包括固定或可变电容或电感，并且可以是二进制加权的。 还提供了电阻模块的阵列，以产生一个或多个控制电压。

    Spread Spectrum Clock and Reference Signal Generator
    10.
    发明申请
    Spread Spectrum Clock and Reference Signal Generator 有权
    扩频时钟和参考信号发生器

    公开(公告)号：US20080100350A1

    公开(公告)日：2008-05-01

    申请号：US11967234

    申请日：2007-12-30

    申请人： Scott Pernia ,  Gordon Carichner ,  Eric Marsman ,  Michael McCorquodale

    发明人： Scott Pernia ,  Gordon Carichner ,  Eric Marsman ,  Michael McCorquodale

    IPC分类号： G06F1/08 ,  H03B19/05 ,  H03B19/03

    CPC分类号： H03L5/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1287 ,  H03B5/1293 ,  H03B2200/005

    摘要： Exemplary embodiments of the invention provide a system, method and apparatus for spread spectrum functionality for a free-running, reference harmonic oscillator. In an exemplary embodiment, an apparatus comprises a reference oscillator adapted to provide a reference signal having a reference frequency; and a spread spectrum controller adapted to control the reference oscillator to generate a spread-spectrum reference signal at a plurality of different reference frequencies during a predetermined or selected time period. An exemplary apparatus may also include a coefficient register adapted to store a plurality of coefficients and a plurality of controlled reactance modules responsive to a corresponding coefficient of the plurality of coefficients to modify an amount of reactance effectively coupled to the reference oscillator. An exemplary spread spectrum controller is further adapted to sequentially modify the plurality of coefficients during the predetermined time period to provide the spread spectrum reference signal.

    摘要翻译： 本发明的示例性实施例提供了一种用于自由运行的参考谐波振荡器的扩频功能的系统，方法和装置。 在示例性实施例中，一种装置包括适于提供具有参考频率的参考信号的参考振荡器; 以及扩展频谱控制器，其适于在预定或选择的时间段期间控制参考振荡器以在多个不同参考频率处产生扩频参考信号。 示例性装置还可以包括适于存储多个系数的系数寄存器和响应于多个系数的对应系数的多个受控电抗模块，以修改有效耦合到基准振荡器的电抗量。 示例性扩频控制器还适于在预定时间段期间顺序修改多个系数以提供扩频参考信号。