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公开(公告)号：US5715528A
公开(公告)日：1998-02-03
申请号：US598753
申请日：1996-02-08
Applicant: Yao Hsien Kuo , Howard Graeme Roberts , Edmund Joe Tillo, II , John Francis Kennedy
Inventor： Yao Hsien Kuo , Howard Graeme Roberts , Edmund Joe Tillo, II , John Francis Kennedy
CPC classification number: H03J5/244 , H03B2201/025
Abstract: An improved tuner for a varactor-tuned local oscillator in a radio receiver includes a winding of a pair of magnetically coupled inductors, preferably constructed in the form of a transformer. Preferably, the first and second windings are magnetically coupled with reduced inter-winding capacitance by axially separating the windings on a common core. The second winding is selectively coupled by a switch to a capacitive load in order to change the inductance of the first winding. The tuning range of the resonant circuit formed by the varactor diode set and the first winding is changed when the capacitive load is coupled. The magnetic coupling between the transformer windings provides DC isolation between the oscillator and the switching circuit. Preferably, a tuning actuator has overlapping ranges of movement for selection of a signal within both the AM and FM frequency bands as the intermediate frequencies for the local oscillator are generated.
Abstract translation: 用于无线电接收机中的变容二极管调谐本地振荡器的改进的调谐器包括一对磁耦合电感器的绕组，优选地以变压器的形式构造。 优选地，通过在公共芯上轴向分离绕组，第一和第二绕组磁耦合减小的绕组间电容。 第二绕组通过开关选择性耦合到电容性负载，以便改变第一绕组的电感。 当容性负载耦合时，由变容二极管组和第一绕组形成的谐振电路的调谐范围被改变。 变压器绕组之间的磁耦合在振荡器和开关电路之间提供直流隔离。 优选地，当生成本地振荡器的中间频率时，调谐致动器具有重叠的移动范围，用于选择AM和FM频带内的信号。
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42.发明申请公开(公告)号：US20160079962A1
公开(公告)日：2016-03-17
申请号：US14942826
申请日：2015-11-16
Inventor： Chewn-Pu Jou , Feng Wei Kuo
CPC classification number: H03J5/0218 , H03B5/08 , H03B5/1215 , H03B5/1228 , H03B5/1265 , H03B2201/025 , H03H5/12 , H03J5/246 , H03J2200/10
Abstract: A device comprises a first capacitor block comprising a plurality of first capacitors connected in a first configuration, a second capacitor block comprising a plurality of second capacitors connected in the first configuration, a third capacitor block comprising a plurality of third capacitors connected in a second configuration, a fourth capacitor block comprising a plurality of fourth capacitors connected in the second configuration, a first switch connected between the first capacitor block and the second capacitor block, a second switch connected between the third capacitor block and the fourth capacitor block, a third switch connected between the first capacitor block and the fourth capacitor block and a fourth switch connected between the third capacitor block and the second capacitor block.
Abstract translation: 一种器件包括：第一电容器块，包括以第一配置连接的多个第一电容器;第二电容器块，包括以第一配置连接的多个第二电容器;第三电容器块，包括以第二配置连接的多个第三电容器 第四电容器块，包括以第二配置连接的多个第四电容器，连接在第一电容器块和第二电容器块之间的第一开关，连接在第三电容器块和第四电容器块之间的第二开关，第三开关 连接在第一电容器块和第四电容器块之间，第四开关连接在第三电容器块和第二电容器块之间。
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公开(公告)号：US09059683B2
公开(公告)日：2015-06-16
申请号：US13902392
申请日：2013-05-24
Inventor： Chewn-Pu Jou , Ying-Ta Lu , Hsien-Yuan Liao
CPC classification number: H03J5/246 , H01G4/38 , H03B5/1215 , H03B5/1228 , H03B5/1265 , H03B2201/025 , H03H5/12 , H03H7/00 , H03J2200/10 , H03L7/08
Abstract: An electronic device includes an inductive element, and variable capacitors. Each variable capacitor includes: first and third capacitors, both having a first terminal electrically connected to a first terminal of the inductive element; and second and fourth capacitors, both having a first terminal electrically connected to a second terminal of the inductive element. A first switch circuit electrically connects or isolates a second terminal of the first capacitor to/from a second terminal of the second capacitor. A second switch circuit electrically connects or isolates a second terminal of the third capacitor to/from a second terminal of the fourth capacitor. A third switch circuit electrically connects or isolates the second terminal of the first capacitor to/from the second terminal of the fourth capacitor. A fourth switch circuit electrically connects or isolates the second terminal of the third capacitor to/from the second terminal of the second capacitor.
Abstract translation: 电子设备包括电感元件和可变电容器。 每个可变电容器包括：第一和第三电容器，两者具有电连接到电感元件的第一端子的第一端子; 以及第二和第四电容器，它们都具有电连接到电感元件的第二端子的第一端子。 第一开关电路将第一电容器的第二端子与第二电容器的第二端子电连接或隔离。 第二开关电路将第三电容器的第二端子与第四电容器的第二端子电连接或隔离。 第三开关电路将第一电容器的第二端子与第四电容器的第二端子电连接或隔离。 第四开关电路将第三电容器的第二端子与第二电容器的第二端子电连接或隔离。
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公开(公告)号：US09035705B2
公开(公告)日：2015-05-19
申请号：US13980122
申请日：2012-01-19
Applicant: Ola Bruset , Tor Oyvind Vedal
Inventor： Ola Bruset , Tor Oyvind Vedal
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: 一种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。 切换电路接收表示目标频率的输入，并以由输入确定的间隔在第一和第二频率之间切换振荡器，以使振荡器的平均输出频率近似于目标频率。
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45.发明申请公开(公告)号：US20150015343A1
公开(公告)日：2015-01-15
申请号：US13938727
申请日：2013-07-10
Applicant: QUALCOMM Incorporated
Inventor： Gary John Ballantyne , Bo Sun , Yi Tang , Zixiang Yang , Masoud Ensafdaran
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转变。
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Patent Agency Ranking
公开(公告)号：US20140184363A1
公开(公告)日：2014-07-03
申请号：US13902392
申请日：2013-05-24
Inventor： Chewn-Pu Jou , Ying-Ta Lu , Hsien-Yuan Liao
CPC classification number: H03J5/246 , H01G4/38 , H03B5/1215 , H03B5/1228 , H03B5/1265 , H03B2201/025 , H03H5/12 , H03H7/00 , H03J2200/10 , H03L7/08
Abstract: An electronic device includes an inductive element, and variable capacitors. Each variable capacitor includes: first and third capacitors, both having a first terminal electrically connected to a first terminal of the inductive element; and second and fourth capacitors, both having a first terminal electrically connected to a second terminal of the inductive element. A first switch circuit electrically connects or isolates a second terminal of the first capacitor to/from a second terminal of the second capacitor. A second switch circuit electrically connects or isolates a second terminal of the third capacitor to/from a second terminal of the fourth capacitor. A third switch circuit electrically connects or isolates the second terminal of the first capacitor to/from the second terminal of the fourth capacitor. A fourth switch circuit electrically connects or isolates the second terminal of the third capacitor to/from the second terminal of the second capacitor.
Abstract translation: 电子设备包括电感元件和可变电容器。 每个可变电容器包括：第一和第三电容器，两者具有电连接到电感元件的第一端子的第一端子; 以及第二和第四电容器，它们都具有电连接到电感元件的第二端子的第一端子。 第一开关电路将第一电容器的第二端子与第二电容器的第二端子电连接或隔离。 第二开关电路将第三电容器的第二端子与第四电容器的第二端子电连接或隔离。 第三开关电路将第一电容器的第二端子与第四电容器的第二端子电连接或隔离。 第四开关电路将第三电容器的第二端子与第二电容器的第二端子电连接或隔离。
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公开(公告)号：US20140043074A1
公开(公告)日：2014-02-13
申请号：US14015600
申请日：2013-08-30
Applicant: Broadcom Corporation
Inventor： Ahmadreza Rofougaran
IPC: H03L7/08
CPC classification number: H03L7/08 , H03B2201/025 , H03J2200/10 , H03L7/085 , H03L7/099 , H03L7/1806 , H03L2207/06
Abstract: Aspects of a method and system for frequency tuning based on characterization of an oscillator are provided. In this regard, a frequency of an oscillator in an integrated circuit may be controlled based on a first digital control word, a frequency of a tuned circuit may be controlled based on a second digital control word, and the second control word may be determined utilizing a mapping between the first control word and the second control word. The frequency of the oscillator and the tuned circuit may be controlled by adjusting a capacitance of the oscillator and tuned circuit, respectively. The mapping may be based on a relationship between the oscillator and the tuned circuit, such as logical and/or mathematical relationship between the capacitance of the oscillator and the capacitance of the tuned circuit and/or the relationship between the frequency of the oscillator and the frequency of the tuned circuit.
Abstract translation: 提供了基于振荡器特征的用于频率调谐的方法和系统的方面。 在这方面，可以基于第一数字控制字来控制集成电路中的振荡器的频率，可以基于第二数字控制字来控制调谐电路的频率，并且可以利用第二数字控制字来确定第二控制字 第一控制字和第二控制字之间的映射。 可以通过分别调整振荡器和调谐电路的电容来控制振荡器和调谐电路的频率。 该映射可以基于振荡器和调谐电路之间的关系，例如振荡器的电容和调谐电路的电容之间的逻辑和/或数学关系和/或振荡器的频率与 调谐电路的频率。
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公开(公告)号：US20130043957A1
公开(公告)日：2013-02-21
申请号：US13212762
申请日：2011-08-18
Applicant: Hajime SHIBATA
Inventor： Hajime SHIBATA
CPC classification number: H03H11/245 , H03B5/00 , H03B2201/011 , H03B2201/018 , H03B2201/0208 , H03B2201/025
Abstract: A tunable impedance circuit can include a fixed impedance and one or more impedance selection circuits. Each impedance selection circuit can include a first impedance connected to a first interface terminal, a second impedance connected to a second interface terminal, and a plurality of series-connected transistors connected between the first and second impedances. Each impedance selection circuit can also include a plurality of drive impedance networks connected to gates, sources, drains, bodies, and isolation regions of the series-connected transistors, and a control circuit to provide a plurality of control signals to the drive impedance networks to turn on and turn off the series-connected transistors. For each impedance selection circuit, turning on and turning off the respective plurality of series-connected transistors can bring the series combination of the respective first and second impedances into and out of electrical communication with, e.g., into and out of parallel with, the fixed impedance.
Abstract translation: 可调谐阻抗电路可以包括固定阻抗和一个或多个阻抗选择电路。 每个阻抗选择电路可以包括连接到第一接口端子的第一阻抗，连接到第二接口端子的第二阻抗以及连接在第一和第二阻抗之间的多个串联连接的晶体管。 每个阻抗选择电路还可以包括连接到串联连接晶体管的栅极，源极，漏极，主体和隔离区域的多个驱动阻抗网络，以及控制电路，以向驱动阻抗网络提供多个控制信号 打开并关闭串联晶体管。 对于每个阻抗选择电路，导通和关断相应的多个串联晶体管可以使相应的第一和第二阻抗的串联组合进入和流出与例如固定的 阻抗。
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公开(公告)号：US08368479B2
公开(公告)日：2013-02-05
申请号：US12432777
申请日：2009-04-30
Applicant: Christian Grewing , Stefan van Waasen , Anders Emericks
Inventor： Christian Grewing , Stefan van Waasen , Anders Emericks
IPC: H03B5/10
CPC classification number: H03L7/0995 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1265 , H03B2201/0208 , H03B2201/025 , H03J2200/10
Abstract: A VCO device is described that has pre-compensation. Digitally switchable compensation capacitors are selectively activated to adjust operation of the VCO to mitigate undesirable operational effects. In some example embodiments, the digitally switchable compensation capacitors of the VCO are adjusted to compensate for the effects of activating (from a quiescent state) an output buffer driven by the VCO.
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公开(公告)号：US08306491B2
公开(公告)日：2012-11-06
申请号：US12504874
申请日：2009-07-17
Applicant: Lawrence Der , Dana Taipale , Scott Willingham
Inventor： Lawrence Der , Dana Taipale , Scott Willingham
IPC: H04B1/18
CPC classification number: H03B5/32 , H03B2201/025 , H03D7/165 , H03J1/0008 , H03J2200/10
Abstract: In one embodiment, the present invention includes a method for determining if a frequency control instruction would cause a first capacitor bank to reach a limit and adjusting the first capacitor bank in a first direction using a calibration value and adjusting a second capacitor bank in a second direction if the first capacitor bank would reach the limit. Furthermore, the calibration value may be calculated and stored in accordance with other embodiments. In such manner, small changes in capacitance and correspondingly small changes in frequency may be effected.
Abstract translation: 在一个实施例中，本发明包括一种用于确定频率控制指令是否会使第一电容器组达到限制并且使用校准值在第一方向上调整第一电容器组并在第二电容器组中调整第二电容器组的方法 方向如果第一个电容器组达到极限。 此外，可以根据其他实施例来计算和存储校准值。 以这种方式，可以实现电容的小的变化和相应的小的频率变化。
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