公开(公告)号：US20080157875A1

公开(公告)日：2008-07-03

申请号：US11618152

申请日：2006-12-29

申请人： Arya Behzad ,  Stephen Chi-Wang Au ,  Dandan Li

发明人： Arya Behzad ,  Stephen Chi-Wang Au ,  Dandan Li

IPC分类号： H03F3/04 ,  G05F3/02

CPC分类号： H03F3/04 ,  H03F1/301 ,  H03F3/345 ,  H03F3/45183 ,  H03F2200/462 ,  H03F2200/78 ,  H03F2203/45244 ,  H03F2203/45476

摘要： Aspects of a method and system for precise current matching in deep sub-micron technology may include adjusting a current mirror to compensate for MOSFET gate leakage currents by using feedback circuits. The feedback circuits may be implemented from active components to create active feedback circuits. If the reference current to be mirrored is noisy, a smoothing effect may be achieved by introducing a low-pass filter coupled to the current mirror design. The active feedback may comprise amplifiers, which may comprise one or more amplifier stages. The amplifier may amplify either a bias voltage error or a bias current error. Furthermore, a transimpedance amplifier may be utilized in the feedback loop. The output bias current of the current mirror may be stabilized dynamically during adjusting. Multiple current sources may be utilized in the current mirrors.

摘要翻译： 深亚微米技术中精确电流匹配的方法和系统的方面可能包括调整电流镜以通过使用反馈电路来补偿MOSFET栅极漏电流。 反馈电路可以由有源部件实现以产生有源反馈电路。 如果要镜像的参考电流是嘈杂的，则可以通过引入耦合到当前镜子设计的低通滤波器来实现平滑效果。 有源反馈可以包括放大器，其可以包括一个或多个放大器级。 放大器可能放大偏置电压误差或偏置电流误差。 此外，可以在反馈回路中使用跨阻放大器。 电流镜的输出偏置电流在调节期间可以动态稳定。 电流镜可以使用多个电流源。

公开(公告)号：US08093952B2

公开(公告)日：2012-01-10

申请号：US11618152

申请日：2006-12-29

申请人： Arya Behzad ,  Stephen Chi-Wang Au ,  Dandan Li

发明人： Arya Behzad ,  Stephen Chi-Wang Au ,  Dandan Li

IPC分类号： H03F3/04 ,  H00G3/10

CPC分类号： H03F3/04 ,  H03F1/301 ,  H03F3/345 ,  H03F3/45183 ,  H03F2200/462 ,  H03F2200/78 ,  H03F2203/45244 ,  H03F2203/45476

摘要： Aspects of a method and system for precise current matching in deep sub-micron technology may include adjusting a current mirror to compensate for MOSFET gate leakage currents by using feedback circuits. The feedback circuits may be implemented from active components to create active feedback circuits. If the reference current to be mirrored is noisy, a smoothing effect may be achieved by introducing a low-pass filter coupled to the current mirror design. The active feedback may comprise amplifiers, which may comprise one or more amplifier stages. The amplifier may amplify either a bias voltage error or a bias current error. Furthermore, a transimpedance amplifier may be utilized in the feedback loop. The output bias current of the current mirror may be stabilized dynamically during adjusting. Multiple current sources may be utilized in the current mirrors.

摘要翻译： 深亚微米技术中精确电流匹配的方法和系统的方面可能包括调整电流镜以通过使用反馈电路来补偿MOSFET栅极漏电流。 反馈电路可以由有源部件实现以产生有源反馈电路。 如果要镜像的参考电流是嘈杂的，则可以通过引入耦合到当前镜子设计的低通滤波器来实现平滑效果。 有源反馈可以包括放大器，其可以包括一个或多个放大器级。 放大器可能放大偏置电压误差或偏置电流误差。 此外，可以在反馈回路中使用跨阻放大器。 电流镜的输出偏置电流在调节期间可以动态稳定。 电流镜可以使用多个电流源。

公开(公告)号：US20080136503A1

公开(公告)日：2008-06-12

申请号：US11618900

申请日：2006-12-31

申请人： Stephen Chi-Wang Au ,  Arya Behzad ,  Paul Chang

发明人： Stephen Chi-Wang Au ,  Arya Behzad ,  Paul Chang

IPC分类号： G05F3/02

CPC分类号： H03F3/45475 ,  H03F2203/45048

摘要： Certain aspects of a method and system for a process sensor to compensate SoC parameters in the presence of IC process manufacturing variations are disclosed. Aspects of one method may include determining an amount of process variation associated with at least one transistor within a single integrated circuit. The determined amount of process variation may be compensated by utilizing a process dependent current, a bandgap current, and a current associated with a present temperature of the transistor. The process dependent current, the bandgap current and the current associated with the present temperature of the transistor may be combined to generate an output current. A voltage generated across a variable resistor may be determined based on the generated output current.

摘要翻译： 公开了用于在存在IC工艺制造变化的情况下补偿SoC参数的工艺传感器的方法和系统的某些方面。 一种方法的方面可以包括确定与单个集成电路内的至少一个晶体管相关联的工艺变化量。 可以通过利用与工艺相关的电流，带隙电流和与晶体管的当前温度相关联的电流来补偿确定的工艺变化量。 过程相关电流，带隙电流和与晶体管的当前温度相关联的电流可以被组合以产生输出电流。 可以基于产生的输出电流来确定可变电阻器两端产生的电压。

公开(公告)号：US08237492B2

公开(公告)日：2012-08-07

申请号：US11618900

申请日：2006-12-31

申请人： Stephen Chi-Wang Au ,  Arya Behzad ,  Paul Chang

发明人： Stephen Chi-Wang Au ,  Arya Behzad ,  Paul Chang

IPC分类号： G05F3/02

CPC分类号： H03F3/45475 ,  H03F2203/45048

摘要： Certain aspects of a method and system for a process sensor to compensate SoC parameters in the presence of IC process manufacturing variations are disclosed. Aspects of one method may include determining an amount of process variation associated with at least one transistor within a single integrated circuit. The determined amount of process variation may be compensated by utilizing a process dependent current, a bandgap current, and a current associated with a present temperature of the transistor. The process dependent current, the bandgap current and the current associated with the present temperature of the transistor may be combined to generate an output current. A voltage generated across a variable resistor may be determined based on the generated output current.

摘要翻译： 公开了用于在存在IC工艺制造变化的情况下补偿SoC参数的工艺传感器的方法和系统的某些方面。 一种方法的方面可以包括确定与单个集成电路内的至少一个晶体管相关联的工艺变化量。 可以通过利用与工艺相关的电流，带隙电流和与晶体管的当前温度相关联的电流来补偿确定的工艺变化量。 过程相关电流，带隙电流和与晶体管的当前温度相关联的电流可以被组合以产生输出电流。 可以基于产生的输出电流来确定可变电阻器两端产生的电压。

公开(公告)号：US08456226B2

公开(公告)日：2013-06-04

申请号：US13545580

申请日：2012-07-10

申请人： Stephen Chi-Wang Au ,  Arya Behzad ,  Paul Chang

发明人： Stephen Chi-Wang Au ,  Arya Behzad ,  Paul Chang

IPC分类号： G05F3/02

CPC分类号： H03F3/45475 ,  H03F2203/45048

摘要： Certain aspects of a method and system for a process sensor to compensate SoC parameters in the presence of IC process manufacturing variations are disclosed. Aspects of one method may include determining an amount of process variation associated with at least one transistor within a single integrated circuit. The determined amount of process variation may be compensated by utilizing a process dependent current, a bandgap current, and a current associated with a present temperature of the transistor. The process dependent current, the bandgap current and the current associated with the present temperature of the transistor may be combined to generate an output current. A voltage generated across a variable resistor may be determined based on the generated output current.

摘要翻译： 公开了用于在存在IC工艺制造变化的情况下补偿SoC参数的工艺传感器的方法和系统的某些方面。 一种方法的方面可以包括确定与单个集成电路内的至少一个晶体管相关联的工艺变化量。 可以通过利用与工艺相关的电流，带隙电流和与晶体管的当前温度相关联的电流来补偿确定的工艺变化量。 过程相关电流，带隙电流和与晶体管的当前温度相关联的电流可以被组合以产生输出电流。 可以基于产生的输出电流来确定可变电阻器两端产生的电压。

公开(公告)号：US20120274397A1

公开(公告)日：2012-11-01

申请号：US13545580

申请日：2012-07-10

申请人： Stephen Chi-Wang Au ,  Arya Behzad ,  Paul Chang

发明人： Stephen Chi-Wang Au ,  Arya Behzad ,  Paul Chang

IPC分类号： G05F3/02

CPC分类号： H03F3/45475 ,  H03F2203/45048

摘要： Certain aspects of a method and system for a process sensor to compensate SoC parameters in the presence of IC process manufacturing variations are disclosed. Aspects of one method may include determining an amount of process variation associated with at least one transistor within a single integrated circuit. The determined amount of process variation may be compensated by utilizing a process dependent current, a bandgap current, and a current associated with a present temperature of the transistor. The process dependent current, the bandgap current and the current associated with the present temperature of the transistor may be combined to generate an output current. A voltage generated across a variable resistor may be determined based on the generated output current.

摘要翻译： 公开了用于在存在IC工艺制造变化的情况下补偿SoC参数的工艺传感器的方法和系统的某些方面。 一种方法的方面可以包括确定与单个集成电路内的至少一个晶体管相关联的工艺变化量。 可以通过利用与工艺相关的电流，带隙电流和与晶体管的当前温度相关联的电流来补偿确定的工艺变化量。 过程相关电流，带隙电流和与晶体管的当前温度相关联的电流可以被组合以产生输出电流。 可以基于产生的输出电流来确定可变电阻器两端产生的电压。

公开(公告)号：US20080139150A1

公开(公告)日：2008-06-12

申请号：US11618716

申请日：2006-12-29

申请人： Qiang Li ,  Razieh Roufoogaran ,  Arya Behzad ,  Dandan Li ,  Hung-Ming Chien

发明人： Qiang Li ,  Razieh Roufoogaran ,  Arya Behzad ,  Dandan Li ,  Hung-Ming Chien

IPC分类号： H04B1/16

CPC分类号： H04B1/406 ,  H03L7/18 ,  Y02D70/122 ,  Y02D70/124

摘要： Certain aspects of a method and system for mitigating effects of pulling in multiple phase locked loops in multi-standard systems may include selecting an input frequency range of operation at a voltage controlled oscillator based on a particular wireless band of operation in a system that handles a first wireless communication protocol and a second wireless communication protocol. An image rejection mixer may be enabled to generate an output signal for the particular wireless band of operation based on mixing a plurality of received signals within a selected frequency range. An in-phase (I) component and a quadrature (Q) component of the generated output signal may be generated by utilizing a RC-CR quadrature network.

摘要翻译： 用于减轻在多标准系统中拉动多个锁相环的影响的方法和系统的某些方面可包括基于处理一个或多个系统的系统中的特定无线工作频带来选择在压控振荡器处的输入频率范围 第一无线通信协议和第二无线通信协议。 可以使镜像抑制混频器能够基于在所选频率范围内混合多个接收信号来产生用于特定无线操作频带的输出信号。 可以通过利用RC-CR正交网络来产生所产生的输出信号的同相（I）分量和正交（Q）分量。

公开(公告)号：US07869781B2

公开(公告)日：2011-01-11

申请号：US11618716

申请日：2006-12-29

申请人： Qiang Li ,  Razieh Roufoogaran ,  Arya Behzad ,  Dandan Li ,  Hung-Ming Chien

发明人： Qiang Li ,  Razieh Roufoogaran ,  Arya Behzad ,  Dandan Li ,  Hung-Ming Chien

IPC分类号： H04B1/06

CPC分类号： H04B1/406 ,  H03L7/18 ,  Y02D70/122 ,  Y02D70/124

摘要： Certain aspects of a method and system for mitigating effects of pulling in multiple phase locked loops in multi-standard systems may include selecting an input frequency range of operation at a voltage controlled oscillator based on a particular wireless band of operation in a system that handles a first wireless communication protocol and a second wireless communication protocol. An image rejection mixer may be enabled to generate an output signal for the particular wireless band of operation based on mixing a plurality of received signals within a selected frequency range. An in-phase (I) component and a quadrature (Q) component of the generated output signal may be generated by utilizing a RC-CR quadrature network.

摘要翻译： 用于减轻在多标准系统中拉动多个锁相环的影响的方法和系统的某些方面可包括基于处理一个或多个系统的系统中的特定无线工作频带来选择在压控振荡器处的输入频率范围 第一无线通信协议和第二无线通信协议。 可以使镜像抑制混频器能够基于在所选频率范围内混合多个接收信号来产生用于特定无线操作频带的输出信号。 可以通过利用RC-CR正交网络来产生所产生的输出信号的同相（I）分量和正交（Q）分量。

公开(公告)号：US20080136468A1

公开(公告)日：2008-06-12

申请号：US11618655

申请日：2006-12-29

申请人： Dandan Li ,  Arya Behzad

发明人： Dandan Li ,  Arya Behzad

IPC分类号： H03B19/00

CPC分类号： H03D13/004 ,  H03L7/093 ,  H03L7/1976

摘要： Aspects of a method and system for signal processing are disclosed and may include using a frequency doubler to double the frequency of a reference signal utilized by a phase-frequency detector (PFD) in a fractional-N phase-locked-loop (PLL) synthesizer. Detecting and correcting a digital reference signal connected to the input of the frequency doubler. The digital reference signal may be generated by amplifying the difference between a low slew-rate reference signal and a reference voltage through a comparator. The reference voltage signal may be generated based on the detected duty-cycle of the digital reference signal. The duty-cycle of the digital reference signal may be adjusted by varying the generated reference voltage signal. The reference voltage may be generated by using difference of DC level of the digital reference signal and half rail. The reference voltage signal may be generated using a voltage digital-to-analog converter (DAC).

摘要翻译： 公开了用于信号处理的方法和系统的方面，并且可以包括使用倍频器将分频N锁相环（PLL）合成器中的相位 - 频率检测器（PFD）所使用的参考信号的频率加倍 。 检测和校正连接到倍频器输入端的数字参考信号。 数字参考信号可以通过比较器放大低压摆率参考信号和参考电压之间的差来产生。 可以基于检测到的数字参考信号的占空比来产生参考电压信号。 可以通过改变所产生的参考电压信号来调整数字参考信号的占空比。 可以通过使用数字参考信号和半导轨的直流电平的差异来产生参考电压。 参考电压信号可以使用电压数模转换器（DAC）产生。

公开(公告)号：US20110103526A1

公开(公告)日：2011-05-05

申请号：US13004675

申请日：2011-01-11

申请人： Qiang Li ,  Razieh Roufoogaran ,  Arya Behzad ,  Dandan Li ,  Hung-Ming Chien

发明人： Qiang Li ,  Razieh Roufoogaran ,  Arya Behzad ,  Dandan Li ,  Hung-Ming Chien

IPC分类号： H04L27/06

CPC分类号： H04B1/406 ,  H03L7/18 ,  Y02D70/122 ,  Y02D70/124

摘要： Certain aspects of a method and system for mitigating effects of pulling in multiple phase locked loops in multi-standard systems may include selecting an input frequency range of operation at a voltage controlled oscillator based on a particular wireless band of operation in a system that handles a first wireless communication protocol and a second wireless communication protocol. An image rejection mixer may be enabled to generate an output signal for the particular wireless band of operation based on mixing a plurality of received signals within a selected frequency range. An in-phase (I) component and a quadrature (Q) component of the generated output signal may be generated by utilizing a RC-CR quadrature network.

摘要翻译： 用于减轻在多标准系统中拉动多个锁相环的影响的方法和系统的某些方面可包括基于处理一个或多个系统的系统中的特定无线工作频带来选择在压控振荡器处的输入频率范围 第一无线通信协议和第二无线通信协议。 可以使镜像抑制混频器能够基于在所选频率范围内混合多个接收信号来产生用于特定无线操作频带的输出信号。 可以通过利用RC-CR正交网络来产生所产生的输出信号的同相（I）分量和正交（Q）分量。