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15 条记录 (耗时 0.027 秒)

    DIGITALLY CONTROLLED OSCILLATOR
    3.
    发明申请
    DIGITALLY CONTROLLED OSCILLATOR 有权
    数字控制振荡器

    公开(公告)号：US20130043958A1

    公开(公告)日：2013-02-21

    申请号：US13210280

    申请日：2011-08-15

    申请人： Yen-Horng Chen ,  Wen-Chang Lee ,  Augusto Marques ,  Xiaochuan Guo

    发明人： Yen-Horng Chen ,  Wen-Chang Lee ,  Augusto Marques ,  Xiaochuan Guo

    IPC分类号： H03B5/12

    CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/1265 ,  H03J2200/10

    摘要： A digitally controlled oscillator is provided. The digitally controlled oscillator includes a pair of transistors cross-coupled to each other, a switched capacitor array coupled to the pair of transistors and a plurality of frequency tracking units coupled to the pair of transistors. The pair of transistors provides an output signal. The switched capacitor array tunes a frequency of the output signal. The frequency tracking units tune the frequency of the output signal to a target frequency. At least one of the frequency tracking units is capable of selectively providing a first capacitance and a second capacitance. A tuning resolution of the frequency tracking unit is determined by a difference between the first and second capacitances.

    摘要翻译： 提供数字控制振荡器。 数字控制振荡器包括彼此交叉耦合的一对晶体管，耦合到该对晶体管的开关电容器阵列和耦合到该对晶体管的多个频率跟踪单元。 一对晶体管提供输出信号。 开关电容阵列调节输出信号的频率。 频率跟踪单元将输出信号的频率调谐到目标频率。 频率跟踪单元中的至少一个能够选择性地提供第一电容和第二电容。 频率跟踪单元的调谐分辨率由第一和第二电容之间的差确定。

    Variable gain amplifier with gain adjusting circuit
    4.
    发明授权
    Variable gain amplifier with gain adjusting circuit 有权
    带增益调节电路的可变增益放大器

    公开(公告)号：US07446609B2

    公开(公告)日：2008-11-04

    申请号：US11707892

    申请日：2007-02-02

    申请人： Wen-Chang Lee ,  Ying-Che Tseng

    发明人： Wen-Chang Lee ,  Ying-Che Tseng

    IPC分类号： H03F3/45

    CPC分类号： H03G7/06 ,  H03G1/0029

    摘要： A variable gain amplifier includes an amplifying circuit and a gain adjusting circuit including the following circuits. A linear exponential transforming circuit transforms a linear controlling signal to output an exponential controlling signal. A voltage buffer circuit is coupled with the linear exponential transforming circuit to receive the exponential controlling signal, outputs a feedback signal to a power transforming circuit, and outputs a voltage controlling signal to control a gain of the amplifying circuit according to the exponential controlling signal and a bias current. A power transforming circuit is coupled with the linear exponential transforming circuit and the voltage buffer circuit to receive the exponential controlling signal and the feedback signal and take two times of a square root of a product of the exponential controlling signal and the feedback signal plus the bias current to output a power signal to the linear exponential transforming circuit.

    摘要翻译： 可变增益放大器包括放大电路和包括以下电路的增益调整电路。 线性指数变换电路转换线性控制信号以输出指数控制信号。 电压缓冲电路与线性指数变换电路耦合以接收指数控制信号，将反馈信号输出到功率变换电路，并输出电压控制信号，以根据指数控制信号控制放大电路的增益;以及 偏置电流。 功率变换电路与线性指数变换电路和电压缓冲电路耦合，以接收指数控制信号和反馈信号，并取指数控制信号和反馈信号加上偏置的乘积的平方根的两倍 电流以将功率信号输出到线性指数变换电路。

    Tunable inductor
    5.
    发明授权
    Tunable inductor 有权
    可调电感

    公开(公告)号：US08963674B2

    公开(公告)日：2015-02-24

    申请号：US13182448

    申请日：2011-07-14

    申请人： Wen-Chang Lee ,  Yen-Horng Chen ,  Augusto Marques

    发明人： Wen-Chang Lee ,  Yen-Horng Chen ,  Augusto Marques

    IPC分类号： H01F21/12 ,  H03H7/01 ,  H01F27/36

    CPC分类号： H01F21/12 ,  H01F27/36 ,  H01F2021/125 ,  H03H7/0153

    摘要： A tunable inductor includes a main wiring and at least one tuning module. The main wiring is arranged to encircle an inductor area of the tunable inductor. In addition, the tuning module is arranged to couple associated nodes of the main wiring. For example, each tuning module of the at least one tuning module includes a first switch positioned within the inductor area, and further includes at least one auxiliary wiring. When the first switch is turned on, the tuning module couples two nodes of the main wiring, where the at least one auxiliary wiring is arranged to couple the two nodes when the first switch is turned on. In particular, a patterned ground plane is arranged to decrease the energy loss of the tunable inductor, and more particularly, to prevent the tunable inductor from suffering energy loss. The patterned ground plane includes some conductive sections forming a W-like shape.

    摘要翻译： 可调电感器包括主布线和至少一个调谐模块。 主布线被布置成环绕可调电感器的电感器区域。 此外，调谐模块被布置成耦合主配线的相关节点。 例如，至少一个调谐模块的每个调谐模块包括位于电感器区域内的第一开关，并且还包括至少一个辅助布线。 当第一开关接通时，调谐模块耦合主配线的两个节点，其中至少一个辅助布线布置成当第一开关被接通时耦合两个节点。 特别地，布置图案化的接地平面以降低可调谐电感器的能量损失，更具体地，为了防止可调电感器遭受能量损失。 图案化的接地平面包括形成W形形状的一些导电部分。

    TUNABLE CAPACITIVE DEVICE WITH LINEARIZATION TECHNIQUE EMPLOYED THEREIN
    6.
    发明申请
    TUNABLE CAPACITIVE DEVICE WITH LINEARIZATION TECHNIQUE EMPLOYED THEREIN 有权
    使用线性化技术的电容式电容器

    公开(公告)号：US20110051311A1

    公开(公告)日：2011-03-03

    申请号：US12548454

    申请日：2009-08-27

    申请人： Wen-Chang Lee

    发明人： Wen-Chang Lee

    IPC分类号： H01G7/00

    CPC分类号： H03J3/185 ,  H03J2200/38

    摘要： One exemplary tunable capacitive device includes a first tunable capacitive element, a first coupling capacitive element, a first coupling resistive element, and a first specific capacitive element. The first tunable capacitive element has a first node coupled to a first input voltage, and a second node. The first coupling capacitive element has a first node coupled to the second node of the first tunable capacitive element, and a second node coupled to a first connection terminal of the tunable capacitive device. The first coupling resistive element has a first node coupled to the second node of the first tunable capacitive element, and a second node coupled to a second input voltage, where the first input voltage and the second input voltage include a control voltage and a reference voltage. The first specific capacitive element is coupled between the first node and the second node of the first tunable capacitive element.

    摘要翻译： 一个示例性的可调谐电容器件包括第一可调电容元件，第一耦合电容元件，第一耦合电阻元件和第一特定电容元件。 第一可调电容元件具有耦合到第一输入电压的第一节点和第二节点。 第一耦合电容元件具有耦合到第一可调电容元件的第二节点的第一节点和耦合到可调电容器件的第一连接端子的第二节点。 第一耦合电阻元件具有耦合到第一可调电容元件的第二节点的第一节点和耦合到第二输入电压的第二节点，其中第一输入电压和第二输入电压包括控制电压和参考电压 。 第一特定电容元件耦合在第一可调电容元件的第一节点和第二节点之间。

    Method and apparatus for frequency adjustment
    7.
    发明申请
    Method and apparatus for frequency adjustment 审中-公开
    用于频率调节的方法和装置

    公开(公告)号：US20060148421A1

    公开(公告)日：2006-07-06

    申请号：US11027984

    申请日：2005-01-04

    申请人： Patrick Huang ,  Wen-Chang Lee ,  Sen-You Liu

    发明人： Patrick Huang ,  Wen-Chang Lee ,  Sen-You Liu

    IPC分类号： H04B1/40

    CPC分类号： H04B1/40 ,  H03J7/065 ,  H03J2200/10

    摘要： A method and an apparatus for shifting a resonance frequency in response to an operating frequency are provided. The present invention retrieves a control signal, from a frequency synthesizer, indicative of a difference between the operating frequency and a predetermined frequency, decodes the control signal to generate a tuning signal by looking up a mapping table, and tunes the resonance frequency in response to the tuning signal.

    摘要翻译： 提供了一种用于响应于工作频率移动谐振频率的方法和装置。 本发明从频率合成器检索指示操作频率和预定频率之间的差异的控制信号，通过查找映射表来解码控制信号以产生调谐信号，并且响应于 调谐信号。

    Clock generating apparatus and frequency calibrating method of the clock generating apparatus
    8.
    发明授权
    Clock generating apparatus and frequency calibrating method of the clock generating apparatus 有权
    时钟发生装置和时钟发生装置的频率校准方法

    公开(公告)号：US08570107B2

    公开(公告)日：2013-10-29

    申请号：US13299347

    申请日：2011-11-17

    申请人： Xiaochuan Guo ,  Wen-Chang Lee ,  Chii-Horng Chen ,  Augusto Marques

    发明人： Xiaochuan Guo ,  Wen-Chang Lee ,  Chii-Horng Chen ,  Augusto Marques

    IPC分类号： H03L7/087 ,  H03L7/085

    CPC分类号： H03L7/103 ,  H03L7/099 ,  H03L7/1976 ,  H03L2207/06 ,  H03L2207/50

    摘要： A clock generating apparatus includes: a time-to-digital converter (TDC) arranged to convert a timing difference between a reference clock and a variable clock to generate a digital value; a calibrating device arranged to generate a control signal according to the digital value and the reference clock; a controllable oscillator arranged to generate an oscillating signal according to the control signal and the digital value; and a feedback device arranged to generate the variable clock to the TDC according to the oscillating signal, and the calibrating device calibrates the controllable oscillator to make the oscillating signal have a target oscillating frequency.

    摘要翻译： 时钟发生装置包括：时间数字转换器（TDC），被配置为转换参考时钟和可变时钟之间的定时差以产生数字值; 校准装置，被配置为根据数字值和参考时钟产生控制信号; 可控振荡器，被配置为根据控制信号和数字值产生振荡信号; 以及反馈装置，其被配置为根据振荡信号向TDC生成可变时钟，并且校准装置校准可控振荡器以使振荡信号具有目标振荡频率。

    Tunable capacitive device with linearization technique employed therein
    9.
    发明授权
    Tunable capacitive device with linearization technique employed therein 有权
    其中采用线性化技术的可调电容器件

    公开(公告)号：US08140041B2

    公开(公告)日：2012-03-20

    申请号：US12548454

    申请日：2009-08-27

    申请人： Wen-Chang Lee

    发明人： Wen-Chang Lee

    IPC分类号： H04B1/06 ,  H04B7/00

    CPC分类号： H03J3/185 ,  H03J2200/38

    摘要： One exemplary tunable capacitive device includes a first tunable capacitive element, a first coupling capacitive element, a first coupling resistive element, and a first specific capacitive element. The first tunable capacitive element has a first node coupled to a first input voltage, and a second node. The first coupling capacitive element has a first node coupled to the second node of the first tunable capacitive element, and a second node coupled to a first connection terminal of the tunable capacitive device. The first coupling resistive element has a first node coupled to the second node of the first tunable capacitive element, and a second node coupled to a second input voltage, where the first input voltage and the second input voltage include a control voltage and a reference voltage. The first specific capacitive element is coupled between the first node and the second node of the first tunable capacitive element.

    摘要翻译： 一个示例性的可调谐电容器件包括第一可调电容元件，第一耦合电容元件，第一耦合电阻元件和第一特定电容元件。 第一可调电容元件具有耦合到第一输入电压的第一节点和第二节点。 第一耦合电容元件具有耦合到第一可调电容元件的第二节点的第一节点和耦合到可调电容器件的第一连接端子的第二节点。 第一耦合电阻元件具有耦合到第一可调电容元件的第二节点的第一节点和耦合到第二输入电压的第二节点，其中第一输入电压和第二输入电压包括控制电压和参考电压 。 第一特定电容元件耦合在第一可调电容元件的第一节点和第二节点之间。

    Digitally controlled oscillator
    10.
    发明授权
    Digitally controlled oscillator 有权
    数字控制振荡器

    公开(公告)号：US08519801B2

    公开(公告)日：2013-08-27

    申请号：US13210280

    申请日：2011-08-15

    申请人： Yen-Horng Chen ,  Wen-Chang Lee ,  Augusto Marques ,  Xiaochuan Guo

    发明人： Yen-Horng Chen ,  Wen-Chang Lee ,  Augusto Marques ,  Xiaochuan Guo

    IPC分类号： H03B5/12

    CPC分类号： H03B5/1228 ,  H03B5/1215 ,  H03B5/1265 ,  H03J2200/10

    摘要： A digitally controlled oscillator is provided. The digitally controlled oscillator includes a pair of transistors cross-coupled to each other, a switched capacitor array coupled to the pair of transistors and a plurality of frequency tracking units coupled to the pair of transistors. The pair of transistors provides an output signal. The switched capacitor array tunes a frequency of the output signal. The frequency tracking units tune the frequency of the output signal to a target frequency. At least one of the frequency tracking units is capable of selectively providing a first capacitance and a second capacitance. A tuning resolution of the frequency tracking unit is determined by a difference between the first and second capacitances.

    摘要翻译： 提供数字控制振荡器。 数字控制振荡器包括彼此交叉耦合的一对晶体管，耦合到该对晶体管的开关电容器阵列和耦合到该对晶体管的多个频率跟踪单元。 该对晶体管提供输出信号。 开关电容阵列调节输出信号的频率。 频率跟踪单元将输出信号的频率调谐到目标频率。 频率跟踪单元中的至少一个能够选择性地提供第一电容和第二电容。 频率跟踪单元的调谐分辨率由第一和第二电容之间的差确定。