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    Oscillator circuit
    21.
    发明授权
    Oscillator circuit 有权
    振荡电路

    公开(公告)号：US07724102B2

    公开(公告)日：2010-05-25

    申请号：US11861292

    申请日：2007-09-26

    Applicant: Igor Ullmann

    Inventor： Igor Ullmann

    IPC: H03B5/12

    CPC classification number: H03B5/1228 ,  H03B5/1209 ,  H03B5/1253 ,  H03B5/1296 ,  H03B2201/0208

    Abstract: An apparatus described herein is an LC tank circuit that may include a capacitance, a first inductance, and a second inductance. The first inductance and the second inductance may each be center tapped coils.

    Abstract translation: 这里描述的装置是可以包括电容，第一电感和第二电感的LC槽电路。 第一电感和第二电感可以各自为中心抽头线圈。

    Voltage controlled piezoelectric oscillator that can be linear frequency controlled
    22.
    发明授权
    Voltage controlled piezoelectric oscillator that can be linear frequency controlled 有权
    压控压电振荡器可以进行线性频率控制

    公开(公告)号：US07719372B2

    公开(公告)日：2010-05-18

    申请号：US11665043

    申请日：2005-10-12

    Applicant: Tomio Satoh

    Inventor： Tomio Satoh

    IPC: H03B5/32

    CPC classification number: H03B5/36 ,  H03B2201/0208 ,  H03K3/0307

    Abstract: A variable capacitance unit that configures a voltage controlled piezoelectric oscillator including a first variable capacitance diode, a first condenser connected in parallel with the first variable capacitance diode, the second variable capacitance diode, a second condenser inserted and connected between a cathode of the first variable capacitance diode and an anode of the second variable capacitance diode, a third condenser inserted and connected between an anode of the first variable capacitance diode and a cathode of the second variable capacitance diode. The external control voltage is applied to the first variable capacitance diode and the second variable capacitance diode so that respective polarities thereof are reversed.

    Abstract translation: 一种可变电容单元，其配置包括第一可变电容二极管的压控压电振荡器，与第一可变电容二极管并联连接的第一电容器，第二可变电容二极管，插入并连接在第一变量的阴极之间的第二电容器 电容二极管和第二可变电容二极管的阳极，第三电容器插入并连接在第一可变电容二极管的阳极和第二可变电容二极管的阴极之间。 将外部控制电压施加到第一可变电容二极管和第二可变电容二极管，使其各自的极性相反。

    Transistor voltage controlled oscillator
    23.
    发明授权
    Transistor voltage controlled oscillator 有权
    晶体管压控振荡器

    公开(公告)号：US07671689B2

    公开(公告)日：2010-03-02

    申请号：US12048558

    申请日：2008-03-14

    Applicant: Ping-Yuan Deng ,  Jean-Fu Kiang

    Inventor： Ping-Yuan Deng ,  Jean-Fu Kiang

    IPC: H03B5/08

    CPC classification number: H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B2201/0208

    Abstract: A FET transistor voltage-controlled oscillator is provided that includes a crossed-coupled inductor capacitor tank (LC-Tank) transistor voltage-controlled circuit having a first transistor and a second transistor, as well as a transistor frequency multiplying circuit having a third transistor and a fourth transistor. In the design, the gate of the first transistor is connected to the drain of the second transistor, and the gate of the second transistor is connected to the drain of the first transistor. Then, the source of the third transistor is connected to the source of the first transistor, and the source of the fourth transistor is connected to the source of the second transistor. Last, the gate of the third transistor is connected to the gate of the fourth transistor, and the drain of the third transistor is connected to the drain of the fourth transistor. Therefore, the parasitic capacitance present in the first transistor and the parasitic capacitance present in the second transistor generate an effect similar to two capacitors connected in series, via the transistor frequency multiplying circuit. The effect reduces the total capacitance of the voltage-controlled oscillator, to increase the working frequency of the voltage-controlled circuit and allow a circuit having the voltage-controlled circuit to operate at a high frequency.

    Abstract translation: 提供了一种FET晶体管压控振荡器，其包括具有第一晶体管和第二晶体管的交叉耦合电感器电容器箱（LC-Tank）晶体管压控电路，以及具有第三晶体管的晶体管倍频电路， 第四晶体管。 在设计中，第一晶体管的栅极连接到第二晶体管的漏极，第二晶体管的栅极连接到第一晶体管的漏极。 然后，第三晶体管的源极连接到第一晶体管的源极，第四晶体管的源极连接到第二晶体管的源极。 最后，第三晶体管的栅极连接到第四晶体管的栅极，第三晶体管的漏极连接到第四晶体管的漏极。 因此，存在于第一晶体管中的寄生电容和第二晶体管中存在的寄生电容经由晶体管倍频电路产生类似于串联连接的两个电容器的效果。 该效果降低了压控振荡器的总电容，以增加压控电路的工作频率，并允许具有压控电路的电路以高频率工作。

    METHOD AND SYSTEM FOR TRANSMISSION AND/OR RECEPTION OF SIGNALS UP TO EXTREMELY HIGH FREQUENCIES UTILIZING A DELAY CIRCUIT
    25.
    发明申请
    METHOD AND SYSTEM FOR TRANSMISSION AND/OR RECEPTION OF SIGNALS UP TO EXTREMELY HIGH FREQUENCIES UTILIZING A DELAY CIRCUIT 有权
    使用延迟电路传输和/或接收信号到超高频的方法和系统

    公开(公告)号：US20090079475A1

    公开(公告)日：2009-03-26

    申请号：US11860106

    申请日：2007-09-24

    Applicant: Ahmadreza Rofougaran

    Inventor： Ahmadreza Rofougaran

    IPC: H03B19/00

    CPC classification number: H03B19/00 ,  H03B2201/0208

    Abstract: Aspects of a method and system for transmission and/or reception of signals up to EHF utilizing a delay circuit are provided. In this regard, a transceiver may comprise at least one delay circuit which may, in turn, comprise a plurality of delay elements and a variable capacitance. The delay circuit may be enabled to delay a first signal, via at least a portion of the delay elements and via the variable capacitance, to generate a second signal that is 90° phase shifted relative to said first signal. Additionally, the delay circuit may be enabled to mix the first signal with the second signal to generate a third signal that is twice a frequency of the first signal. The third signal may be utilized for up-conversion and/or down-conversion of signals to and/or from baseband, intermediate frequencies, and/or RF frequencies of up to EHF.

    Abstract translation: 提供了一种利用延迟电路传输和/或接收EHF信号的方法和系统的方面。 在这方面，收发器可以包括至少一个延迟电路，延迟电路又可以包括多个延迟元件和可变电容。 延迟电路可以经由延迟元件的至少一部分并且经由可变电容来延迟第一信号，以产生相对于所述第一信号相移90°的第二信号。 此外，延迟电路可以被使能以将第一信号与第二信号混合，以产生第二信号的频率的两倍的第三信号。 第三信号可以被用于向高达EHF的基带，中频和/或RF频率的信号的上变频和/或下变频。

    Digital Tuning of Crystal Oscillators
    27.
    发明申请
    Digital Tuning of Crystal Oscillators 有权
    水晶振荡器的数字调谐

    公开(公告)号：US20080309424A1

    公开(公告)日：2008-12-18

    申请号：US11764701

    申请日：2007-06-18

    Applicant: David H. Shen ,  Ann P. Shen

    Inventor： David H. Shen ,  Ann P. Shen

    IPC: H03B5/32

    CPC classification number: H03B5/366 ,  H03B2201/0208 ,  H03J2200/10

    Abstract: Embodiments feature techniques and systems for digitally tuning a crystal oscillator circuit. In one aspect, embodiments feature a method for making a digitally tuned crystal oscillator circuit. The method involves receiving a multi-bit input signal into a digital modulator, modulating the multi-bit input signal with the digital modulator by oversampling or by noiseshaping and oversampling to produce a digitally-modulated output signal having a lower number of bits than the multi-bit input signal. The method also involves coupling a tuning capacitor with the crystal oscillator circuit, and coupling the digitally-modulated output signal from the digital modulator to the crystal oscillator circuit and the tuning capacitor. In some embodiments, the digital modulator can a delta-sigma modulator, a noiseshaping modulator, a delta modulator, a pulse width modulator, a differential modulator, or a continuous-slope delta modulator.

    Abstract translation: 实施例用于数字调谐晶体振荡器电路的技术和系统。 在一个方面，实施例的特征在于制造数字调谐晶体振荡器电路的方法。 该方法包括将多位输入信号接收到数字调制器中，通过过采样或通过噪声整形和过采样来调制具有数字调制器的多位输入信号，以产生具有比多数位更低位数的数字调制输出信号 位输入信号。 该方法还涉及将调谐电容器与晶体振荡器电路耦合，并将数字调制输出信号从数字调制器耦合到晶体振荡器电路和调谐电容器。 在一些实施例中，数字调制器可以是Δ-Σ调制器，噪声调制器，Δ调制器，脉冲宽度调制器，差分调制器或连续斜率增量调制器。

    Apparatus and method for phase lock gain control using unit current sources
    28.
    发明授权
    Apparatus and method for phase lock gain control using unit current sources 有权
    使用单位电流源进行锁相增益控制的装置和方法

    公开(公告)号：US07449963B2

    公开(公告)日：2008-11-11

    申请号：US11754804

    申请日：2007-05-29

    Applicant: Ramon A. Gomez

    Inventor： Ramon A. Gomez

    IPC: H03L7/00

    CPC classification number: H03L7/00 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1278 ,  H03B2200/0046 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2201/02 ,  H03B2201/0208 ,  H03B2201/025 ,  H03D7/165 ,  H03D7/18 ,  H03J5/244 ,  H03J2200/10 ,  H03L7/0898 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/107 ,  H03L7/1072 ,  H03L7/18

    Abstract: A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal to perform band-select tuning of the VCO. The gain compensator compensates for the variable VCO gain by generating a charge pump reference current that is based on the same capacitor control signal that controls the fixed capacitors in the LC circuit. The gain compensator generates the charge pump reference current by replicating a reference scale current using unit current sources. The number of times the reference scale current is replicated is based on the fixed capacitance that is switched-in to the LC circuit and therefore the frequency band of the PLL. The reference scale current is generated based on a PLL control that specifics certain PLL characteristics such as reference frequency, loop bandwidth, and loop damping. Therefore, the reference pump current can be efficiently optimized for-changing PLL operating conditions, in addition to compensating for variable VCO gain.

    Abstract translation: 增益补偿器补偿锁相环（PLL）中变容二极管调谐电压调谐振荡器（VCO）的增益变化。 VCO包括具有多个固定电容器的并联LC电路，其可以根据电容器控制信号切换或切换出LC电路，以执行VCO的频带选择调谐。 增益补偿器通过产生基于控制LC电路中的固定电容器的相同电容器控制信号的电荷泵参考电流来补偿可变VCO增益。 增益补偿器通过使用单位电流源复制参考刻度电流来产生电荷泵参考电流。 参考比例电流复制的次数是基于切换到LC电路的固定电容，因此是PLL的频带。 参考比例电流是基于特定于参考频率，环路带宽和环路阻尼等特定PLL特性的PLL控制产生的。 因此，除了补偿可变VCO增益之外，参考泵电流可以有效地优化用于改变PLL工作条件。

    Variable capacity circuit and control method of variable capacity circuit
    29.
    发明授权
    Variable capacity circuit and control method of variable capacity circuit 有权
    可变容量电路和可变容量电路的控制方法

    公开(公告)号：US07301412B2

    公开(公告)日：2007-11-27

    申请号：US11216000

    申请日：2005-09-01

    Applicant: Tsuyoshi Moribe ,  Masaki Kishi ,  Yoshiharu Kamiya ,  Masahiro Yamamoto

    Inventor： Tsuyoshi Moribe ,  Masaki Kishi ,  Yoshiharu Kamiya ,  Masahiro Yamamoto

    IPC: H03B5/12

    CPC classification number: H03B5/1231 ,  H03B5/1215 ,  H03B5/1253 ,  H03B5/1293 ,  H03B2201/0208

    Abstract: To present a variable capacity circuit and a control method of variable capacity capable of extending a variable capacity width of a variable capacity element to a maximum extent without increasing an element area of the variable capacity element or varying the level of control voltage, a variable capacity circuit 2 comprises a capacity value control circuit 11, varactors VA1 and VA2, and resistance elements R1 and R2. The capacity value control circuit 11 issues a variable output voltage CNTOUT depending on input control voltage VT, and controls the potentials at both ends of the varactors simultaneously. The output voltage CNTOUT is variably adjusted so as to have a negative correlation to the control voltage VT. Variable width of terminal voltage VD can be extended from a variable width SA1 to a variable width SA1a (range is +/−(Vcc1)). As a result, as shown in FIG. 5B, the changeable area of a varactor capacity value CV can be extended from a changeable area CA1 to a changeable area CA1a.

    Abstract translation: 为了呈现可变容量电路和可变容量的控制方法，其能够在不增加可变容量元件的元件面积或改变控制电压的水平的情况下将可变容量元件的可变容量宽度扩大到最大程度，可变容量 电路2包括容量值控制电路11，变容器VA 1和VA 2以及电阻元件R 1和R 2。电容值控制电路11根据输入的控制电压VT发出可变输出电压CNTOUT，并且控制电位 可变电抗器的两端同时进行。 可变地调节输出电压CNTOUT，使其与控制电压VT成负相关。 端子电压VD的可变宽度可以从可变宽度SA 1延伸到可变宽度SA1a（范围为+/-（Vcc1））。 结果，如图所示。 如图5B所示，可变容量值CV的可变区域可以从可更改区域CA 1扩展到可更改区域CA1a。

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