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    WIDE-BAND VOLTAGE-CONTROLLED OSCILLATOR (VCO) WITH SWITCHED INDUCTOR CIRCUIT
    111.
    发明申请
    WIDE-BAND VOLTAGE-CONTROLLED OSCILLATOR (VCO) WITH SWITCHED INDUCTOR CIRCUIT 审中-公开
    具有开关电感电路的宽带电压控制振荡器（VCO）

    公开(公告)号：WO2017142682A1

    公开(公告)日：2017-08-24

    申请号：PCT/US2017/014545

    申请日：2017-01-23

    Applicant: QUALCOMM INCORPORATED

    Inventor： FARAZIAN, Mohammad ,  MOSLEHI BAJESTAN, Masoud

    IPC: H03B5/12 ,  H03B5/18

    CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1265 ,  H03B5/1268 ,  H03B5/1841 ,  H03B5/1852 ,  H03B2200/0016 ,  H03B2201/025

    Abstract: Certain aspects of the present disclosure generally relate to a voltage-controlled oscillator (VCO) that is configurable (e.g., in a dynamic manner) in multiple modes of operation (e.g., low/high-band modes). The VCO may include a resonant circuit coupled to a plurality of switches that may be used to adjust current flow within one or more inductive elements of the resonant circuit. By adjusting the current flow within the inductive elements, an inductance of the resonant circuit may be adjusted, which in turn adjusts a band of the VCO.

    Abstract translation: 本公开的某些方面一般涉及可在多种操作模式（例如，低/高频带模式）下配置（例如，以动态方式）的压控振荡器（VCO） ）。 VCO可以包括耦合到多个开关的谐振电路，其可以用于调节谐振电路的一个或多个电感元件内的电流流动。 通过调节电感元件内的电流，可以调节谐振电路的电感，从而调节VCO的频带。

    INDUCTOR-ENCLOSED VOLTAGE-CONTROLLED OSCILLATORS
    112.
    发明申请
    INDUCTOR-ENCLOSED VOLTAGE-CONTROLLED OSCILLATORS 审中-公开
    电感器电压控制振荡器

    公开(公告)号：WO2015183498A1

    公开(公告)日：2015-12-03

    申请号：PCT/US2015/029587

    申请日：2015-05-07

    Applicant: QUALCOMM INCORPORATED

    Inventor： HAN, Yiping ,  LO, Yung-Chung ,  JIN, Zhang

    IPC: H03B5/12

    CPC classification number: H03B5/12 ,  H03B5/1243 ,  H03B2201/025 ,  H04B1/38

    Abstract: Certain aspects of the present disclosure provide an inductor-enclosed switchable voltage-controlled oscillator (VCO), for use in a frequency synthesizer of a radio frequency integrated circuit (RFIC), for example. One example apparatus is a frequency synthesizer that generally includes a first VCO circuit comprising a first inductor and a second VCO circuit comprising a second inductor, wherein at least a portion of the first VCO circuit is disposed inside a loop of the second inductor. According to certain aspects, at least a portion of the second VCO circuit is disposed inside a loop of the first inductor.

    Abstract translation: 本公开的某些方面提供了例如用于射频集成电路（RFIC）的频率合成器中的电感器封闭的可切换压控振荡器（VCO）。 一个示例性装置是频率合成器，其通常包括第一VCO电路，其包括第一电感器和包括第二电感器的第二VCO电路，其中第一VCO电路的至少一部分设置在第二电感器的环路内。 根据某些方面，第二VCO电路的至少一部分设置在第一电感器的环路内。

    DEVICES AND METHODS FOR REDUCING NOISE IN DIGITALLY CONTROLLED OSCILLATORS
    113.
    发明申请
    DEVICES AND METHODS FOR REDUCING NOISE IN DIGITALLY CONTROLLED OSCILLATORS 审中-公开
    用于减少数字控制振荡器噪声的装置和方法

    公开(公告)号：WO2015006192A1

    公开(公告)日：2015-01-15

    申请号：PCT/US2014/045539

    申请日：2014-07-07

    Applicant: QUALCOMM INCORPORATED

    Inventor： BALLANTYNE, Gary, John ,  SUN, Bo ,  TANG, Yi ,  YANG, Zixiang ,  ENSAFDARAN, Masoud

    IPC: H03L7/099

    CPC classification number: H03L7/0991 ,  H03B5/1265 ,  H03B2200/0088 ,  H03B2201/025 ,  H03B2202/017 ,  H03J5/24 ,  H03J2200/10 ,  H03J2200/36 ,  H03L7/099 ,  H03L2207/50

    Abstract: One feature pertains to a digitally controlled oscillator (DCO) that comprises a variable capacitor and noise reduction circuitry. The variable capacitor has a variable capacitance value that controls an output frequency of the DCO. The variable capacitance value is based on a first bank capacitance value provided by a first capacitor bank, a second bank capacitance value provided by a second capacitor bank, and an auxiliary bank capacitance value provided by an auxiliary capacitor bank. The noise reduction circuitry is adapted to adjust the variable capacitance value by adjusting the auxiliary bank capacitance value while maintaining at least one of the first bank capacitance value and/or the second bank capacitance value substantially unchanged. Prior to adjusting the variable capacitance value, the noise reduction circuitry may determine that a received input DCO control word transitions across a capacitor bank sensitive boundary.

    Abstract translation: 一个特征涉及包含可变电容器和降噪电路的数字控制振荡器（DCO）。 可变电容器具有控制DCO的输出频率的可变电容值。 可变电容值基于由第一电容器组提供的第一组电容值，由第二电容器组提供的第二组电容值和由辅助电容器组提供的辅助组电容值。 噪声降低电路适于通过调整辅助电容电容值来调节可变电容值，同时保持第一组电容值和/或第二组电容值中的至少一个基本上不变。 在调整可变电容值之前，噪声降低电路可以确定接收的输入DCO控制字在电容器组敏感边界之间跳变。

    LOW-POWER OSCILLATOR
    114.
    发明申请
    LOW-POWER OSCILLATOR 审中-公开
    低功耗振荡器

    公开(公告)号：WO2012098399A3

    公开(公告)日：2012-11-08

    申请号：PCT/GB2012050110

    申请日：2012-01-19

    Applicant: NORDIC SEMICONDUCTOR ASA ,  BRUSET OLA ,  VEDAL TOR OEYVIND ,  WILSON TIMOTHY JAMES

    Inventor： BRUSET OLA ,  VEDAL TOR OEYVIND

    IPC: H03K5/135 ,  G06F1/08

    CPC classification number: H03L7/24 ,  G06F1/08 ,  H03B5/20 ,  H03B5/32 ,  H03B2201/025 ,  H03K5/135

    Abstract: An integrated oscillator circuit comprises an oscillator configured to be switched between a first frequency and a second frequency. A switching circuit receives an input representing a target frequency and switches the oscillator between the first and second frequencies at intervals determined by the input, so as to cause the average output frequency of the oscillator to approximate the target frequency.

    Abstract translation: 集成振荡器电路包括被配置为在第一频率和第二频率之间切换的振荡器。 开关电路接收表示目标频率的输入，并且以由输入确定的间隔在第一频率和第二频率之间切换振荡器，以使振荡器的平均输出频率接近目标频率。

    METHODS AND APPARATUS TO GENERATE SMALL FREQUENCY CHANGES
    116.
    发明申请
    METHODS AND APPARATUS TO GENERATE SMALL FREQUENCY CHANGES 审中-公开
    生成小频率变化的方法和设备

    公开(公告)号：WO2007005664A3

    公开(公告)日：2007-03-29

    申请号：PCT/US2006025691

    申请日：2006-06-29

    Applicant: SILICON LAB INC ,  DER LAWRENCE ,  TAIPALE DANA ,  WILLINGHAM SCOTT D

    Inventor： DER LAWRENCE ,  TAIPALE DANA ,  WILLINGHAM SCOTT D

    IPC: H03J1/00

    CPC classification number: H03J1/00 ,  H03B2201/025 ,  H03J3/20

    Abstract: In one embodiment, the present invention includes an apparatus having a first capacitor coupled between a first node and a second node, a second capacitor coupled between the second node and a reference potential, and a third capacitor coupled between the second node and a switch, where the switch is controllable to couple the third capacitor to the second node. Using such an apparatus small changes in capacitance and correspondingly small changes in frequency may be effected. Other embodiments are directed to calibration of one or more capacitor banks.

    Abstract translation: 在一个实施例中，本发明包括具有耦合在第一节点和第二节点之间的第一电容器，耦合在第二节点和参考电位之间的第二电容器以及耦合在第二节点和开关之间的第三电容器的装置， 其中开关可控制以将第三电容器耦合到第二节点。 使用这种装置可以实现电容的小的变化和相应的小的频率变化。 其他实施例涉及一个或多个电容器组的校准。

    DIRECT DIGITALLY TUNABLE MICROWAVE OSCILLATORS AND FILTERS
    117.
    发明申请
    DIRECT DIGITALLY TUNABLE MICROWAVE OSCILLATORS AND FILTERS 审中-公开
    直接数字微波微波振荡器和滤波器

    公开(公告)号：WO01013527A1

    公开(公告)日：2001-02-22

    申请号：PCT/US2000/022763

    申请日：2000-08-17

    IPC: H03B1/00 ,  H04B1/18 ,  H04B1/16

    CPC classification number: H04B1/18 ,  H03B2201/0208 ,  H03B2201/025

    Abstract: A tunable element in the microwave frequency range includes one or more tunable elements (107). The low noise digital signals filtered by a digital isolation technique are converted to the analog control voltage by way of D/A converter (105). A low cost microwave oscillator (106) and filter are used for directly tune the tunable elements (107).

    Abstract translation: 微波频率范围内的可调谐元件包括一个或多个可调元件（107）。 通过数字隔离技术滤波的低噪声数字信号通过D / A转换器（105）转换为模拟控制电压。 使用低成本微波振荡器（106）和滤波器来直接调谐可调元件（107）。

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