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    DEVICES AND METHODS FOR REDUCING NOISE IN DIGITALLY CONTROLLED OSCILLATORS
    83.
    发明公开
    DEVICES AND METHODS FOR REDUCING NOISE IN DIGITALLY CONTROLLED OSCILLATORS 审中-公开
    器件和方法中的噪声数字控制振荡器还原

    公开(公告)号：EP3020133A1

    公开(公告)日：2016-05-18

    申请号：EP14747193.2

    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: 一个特征涉及一种数字控制振荡器（DCO）做包括一可变电容器和噪声降低电路。 可变电容器具有可变电容值做了DCO的输出频率的控制。 可变电容值是基于由第一电容器组，由第二电容器组提供的第二银行电容值，并通过在辅助电容器组提供辅助银行电容值提供第一组电容值。降噪电路是angepasst 通过调整辅助银行电容值，同时保持所述第一银行电容值中的至少一个和/或所述第二隔堤电容值基本不变，以调整可变电容值。 之前调节可变电容值，降噪电路可以确定性矿做跨电容器组敏感边界的接收到的输入DCO控制字转换。

    IMPROVEMENTS IN THE FINE TUNING OF ELECTRONIC OSCILLATORS
    85.
    发明公开
    IMPROVEMENTS IN THE FINE TUNING OF ELECTRONIC OSCILLATORS 有权
    改进技术微调电子振荡器的

    公开(公告)号：EP2449673A1

    公开(公告)日：2012-05-09

    申请号：EP10738023.0

    申请日：2010-06-28

    Applicant: Eosemi Limited

    Inventor： HARROLD, Stephen John

    IPC: H03B5/12 ,  H03J3/00

    CPC classification number: H03L7/00 ,  H03B5/1265 ,  H03B5/1268 ,  H03B2201/025 ,  H03J3/20

    Abstract: According to the invention there is provided a method of producing an output signal including the steps of: providing an electronic oscillator having a switching arrangement allowing the oscillator to be switched between at least a first configuration having an associated first oscillator frequency and period, and a second configuration having an associated second oscillator frequency and period, and a control arrangement for controlling the switching arrangement; dithering the oscillator between at least the first configuration and the second configuration to produce the output signal, having an intermediate frequency and period, in which the dithering is performed by switching from the first configuration to the second configuration for a pre-determined subset of each output signal period over successive cycles of the output signal frequency.

    LOCAL OSCILLATOR, RECEPTION DEVICE AND ELECTRONIC DEVICE USING THE SAME
    86.
    发明公开
    LOCAL OSCILLATOR, RECEPTION DEVICE AND ELECTRONIC DEVICE USING THE SAME 审中-公开
    LOKALER OSZILLATOR，EMPFANGSVORRICHTUNG UND ELEKTRONISCHESGERÄTDAMIT

    公开(公告)号：EP2009783A1

    公开(公告)日：2008-12-31

    申请号：EP08720373.3

    申请日：2008-03-07

    Applicant: Panasonic Corporation

    Inventor： Takeshi FUJII ,  Yasuo OOBA ,  Mineyuki IWAIDA ,  Hiroaki OZEKI

    IPC: H03B5/12 ,  H04B1/26

    CPC classification number: H03L7/10 ,  H03B5/1215 ,  H03B5/1231 ,  H03B5/1265 ,  H03B2201/0208 ,  H03B2201/025 ,  H03J2200/10 ,  H03L7/087 ,  H03L7/099 ,  H03L7/18 ,  H03L2207/06

    Abstract: A broad oscillation frequency range and good phase noise characteristic are achievable simultaneously by an oscillation circuit and a resonance circuit connected to the oscillation circuit. The resonance circuit includes an inductor element connected to the oscillation circuit, a first variable capacitance section connected to the inductor element, and a second variable capacitance section connected in parallel to the first variable capacitance section. The first variable capacitance section includes a first variable capacitive element connected to the inductor element, and a second variable capacitive element connected in parallel to the first variable capacitive element. The first variable capacitive element changes its capacity value based on a control voltage and a first reference voltage. The second variable capacitive element changes its capacity value based on the control voltage and a second reference voltage. The first reference voltage and the second reference voltage are controlled based on the capacity value of the second variable capacitance section.

    Abstract translation: 通过与振荡电路连接的振荡电路和谐振电路同时实现宽振荡频率范围和良好的相位噪声特性。 谐振电路包括连接到振荡电路的电感器元件，连接到电感器元件的第一可变电容部分和与第一可变电容部分并联连接的第二可变电容部分。 第一可变电容部分包括连接到电感器元件的第一可变电容元件和与第一可变电容元件并联连接的第二可变电容元件。 第一可变电容元件基于控制电压和第一参考电压改变其容量值。 第二可变电容元件基于控制电压和第二参考电压改变其容量值。 基于第二可变电容部的容量值来控制第一基准电压和第二基准电压。

    SYSTEM FOR CONTROLLING THE FREQUENCY OF AN OSCILLATOR
    87.
    发明授权
    SYSTEM FOR CONTROLLING THE FREQUENCY OF AN OSCILLATOR 有权
    系统，以控制振荡器的频率

    公开(公告)号：EP1374387B1

    公开(公告)日：2006-06-14

    申请号：EP02721582.1

    申请日：2002-03-25

    Applicant: Skyworks Solutions, Inc.

    Inventor： DAMGAARD, Morten ,  DOMINO, William, J. ,  MAGOON, Rahul ,  MOLNAR, Alyosha, C. ,  ZACHAN, Jeffrey

    IPC: H03L7/087 ,  H03L7/099

    CPC classification number: H03L7/099 ,  H03B2201/025 ,  H03B2201/0291 ,  H03J2200/10 ,  H03L5/00 ,  H03L7/087 ,  H03L7/113

    Abstract: Systems for controlling the frequency of the output signal of a controllable oscillator (202) in a frequency synthesizer (200) are provided. One such system comprises a controllable oscillator (202) and a frequency control circuit (208). The controllable oscillator (202) is configured to generate an output signal that has a predefined frequency. The controllable oscillator (202) is also configured with a plurality of operational states that are controlled by the frequency control circuit (208). Each operational state of the controllable oscillator (202) defines a distinct frequency for the output signal of the controllable oscillator (202). The frequency control circuit (208) receives the output signal of the controllable oscillator (202) and determines the distinct frequency for the output signal that best approximates the predefined frequency. The frequency control circuit (208) may also provide a control signal to the controllable oscillator (202) that is configured to change the controllable oscillator (202) to the operational state corresponding to the distinct frequency that best approximates the predefined frequency.

    LC OSCILLATOR WITH WIDE TUNING RANGE AND LOW PHASE NOISE
    88.
    发明公开
    LC OSCILLATOR WITH WIDE TUNING RANGE AND LOW PHASE NOISE 有权
    LC-OSZILLATOR MIT GROSSEM ABSTIMMBEREICH UND GERINGEM PHASENRAUSCHEN

    公开(公告)号：EP1514351A4

    公开(公告)日：2005-12-07

    申请号：EP03728954

    申请日：2003-06-05

    Applicant: GCT SEMICONDUCTOR INC

    Inventor： KOO YIDO ,  LEE JEONG-WOO ,  PARK JOONBAE ,  LEE KYEONGHO

    IPC: H03B5/08 ,  H03B1/00 ,  H03B5/12 ,  H03L7/099 ,  H03L7/08

    CPC classification number: H03L7/099 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2201/025 ,  H03J2200/10

    Abstract: A voltage-controlled oscillator (600) including an active oscillator circuit (610), an inductor, and capacitive circuits is disclosed. The capacitive circuits are selectively turned on and off to control the frequency of the voltage-controlled oscillator (600). Particularly, the inductor and the capacitors in the capacitive circuits form LC circuits that provide feedback to the active oscillator circuit (610). To avoid damage to the switches in the capacitive circuits, the capacitive circuits further comprise resistors (622). The resistors can be configured in several different ways so that the voltage-controlled oscillator (600) can have a high degree of reliability, and a wide tuning range with constant phase noise performance.

    Abstract translation: 公开了一种包括有源振荡器电路，电感器和电容电路的压控振荡器。 电容电路选择性地导通和截止以控制压控振荡器的频率。 特别地，电容电路中的电感器和电容器形成LC电路，从而向有源振荡器电路提供反馈。 为了避免损坏电容电路中的开关，电容电路还包括电阻器。 电阻器可以以多种不同的方式进行配置，使得压控振荡器具有高可靠性，以及具有恒定相位噪声性能的宽调谐范围。

    LC OSCILLATOR WITH WIDE TUNING RANGE AND LOW PHASE NOISE
    89.
    发明公开
    LC OSCILLATOR WITH WIDE TUNING RANGE AND LOW PHASE NOISE 有权
    具有宽调谐范围和低相位噪声的LC振荡器

    公开(公告)号：EP1514351A1

    公开(公告)日：2005-03-16

    申请号：EP03728954.3

    申请日：2003-06-05

    Applicant: GCT Semiconductor, Inc.

    Inventor： KOO, Yido ,  LEE, Jeong-Woo ,  PARK, Joonbae ,  LEE, Kyeongho

    IPC: H03L7/08 ,  H03B5/08

    CPC classification number: H03L7/099 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2201/025 ,  H03J2200/10

    Abstract: A voltage-controlled oscillator (600) including an active oscillator circuit (610), an inductor, and capacitive circuits is disclosed. The capacitive circuits are selectively turned on and off to control the frequency of the voltage-controlled oscillator (600). Particularly, the inductor and the capacitors in the capacitive circuits form LC circuits that provide feedback to the active oscillator circuit (610). To avoid damage to the switches in the capacitive circuits, the capacitive circuits further comprise resistors (622). The resistors can be configured in several different ways so that the voltage-controlled oscillator (600) can have a high degree of reliability, and a wide tuning range with constant phase noise performance.

    Abstract translation: 公开了包括有源振荡器电路（610），电感器和电容电路的压控振荡器（600）。 电容性电路被选择性地打开和关闭以控制压控振荡器（600）的频率。 特别地，电容电路中的电感器和电容器形成向有源振荡器电路（610）提供反馈的LC电路。 为了避免损坏电容电路中的开关，电容电路还包括电阻器（622）。 这些电阻器可以通过几种不同的方式进行配置，以使压控振荡器（600）具有高度的可靠性，并具有恒定相位噪声性能的宽调谐范围。

    Radio frequency integrated circuit
    90.
    发明公开
    Radio frequency integrated circuit 审中-公开
    用于高频的集成电路

    公开(公告)号：EP1331742A3

    公开(公告)日：2003-12-17

    申请号：EP03001462.5

    申请日：2003-01-22

    Applicant: Broadcom Corporation

    Inventor： Pan, Meng-An ,  Wu, Stephen ,  Ibrahim, Brima B.

    IPC: H04B1/40 ,  H04B1/30

    CPC classification number: H04B1/406 ,  H03B2201/025 ,  H03J2200/10 ,  H03L7/0891 ,  H03L7/099 ,  H03L7/10 ,  H03L7/18 ,  H03L7/187 ,  H04B1/30 ,  H04B17/21

    Abstract: A radio frequency (RF) integrated circuit (IC) includes a local oscillation module, analog radio receiver, analog radio transmitter, digital receiver module, digital transmitter module, and digital optimization module. The local oscillation module is operably coupled to produce at least one local oscillation. The analog radio receiver is operably coupled to directly convert inbound RF signals into inbound low intermediate frequency signals based on the local oscillation. The digital receiver module is operably coupled to process the inbound low IF signals in accordance with one of a plurality of radio transceiving standards to produce inbound data. The digital transmitter is operably coupled to produce an outbound low intermediate frequency signal by processing outbound data in accordance with the one of the plurality of radio transceiving standards. The analog radio transmitter is operably coupled to directly convert the outbound low IF signals into outbound RF signals based on the local oscillation. The digital optimization module is operably coupled to the local oscillation module, the analog radio receiver and/or the analog radio transmitter to optimize performance of at least one aspect of the local oscillation module, the analog radio receiver and/or the analog radio transmitter for the given radio transceiving standard being implemented.

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