公开(公告)号：US08975971B2

公开(公告)日：2015-03-10

申请号：US12831255

申请日：2010-07-07

申请人： Hong-Yean Hsieh ,  Chao-Cheng Lee

发明人： Hong-Yean Hsieh ,  Chao-Cheng Lee

IPC分类号： H03L7/099 ,  H03J1/00

CPC分类号： H03J1/00 ,  H03J2200/10 ,  H03L7/099

摘要： A digitally controlled LC-tank oscillator is constructed by connecting different tuning circuits to a LC tank. The tuning circuit includes a single bank of tuning cells, a dual bank of tuning cells, or a fractional tuning circuit. Each of said tuning cells in the tuning circuit includes a tuning circuit element and a memory cell.

摘要翻译： 通过将不同的调谐电路连接到液相色谱箱构建数字控制的LC-槽振荡器。 调谐电路包括单组调谐单元，双组调谐单元或分数调谐电路。 调谐电路中的每个调谐单元包括调谐电路元件和存储单元。

公开(公告)号：US20140340181A1

公开(公告)日：2014-11-20

申请号：US13894096

申请日：2013-05-14

申请人： Infineon Technologies AG

发明人： Winfried Bakalski

IPC分类号： H03J5/24

CPC分类号： H03J5/244 ,  H03J2200/10

摘要： In accordance with an embodiment, a switchable capacitance circuit includes a plurality of capacitance-switch cells that each has a first semiconductor switching circuit and a capacitance circuit having a first terminal coupled to the first semiconductor switching circuit. A resistance of the first semiconductor switching circuit of a first switch-capacitance cell of the plurality of capacitance-switch cells is within a first tolerance of a resistance of the first semiconductor switching circuit of a second capacitance-switch cell of the plurality of capacitance-switch cells, and a capacitance of the capacitance circuit of the first capacitance-switch cell is within a second tolerance of a capacitance of the capacitance circuit of the second capacitance-switch cell.

摘要翻译： 根据实施例，可切换电容电路包括多个电容开关单元，每个电容开关单元具有第一半导体开关电路和具有耦合到第一半导体开关电路的第一端子的电容电路。 多个电容开关单元中的第一开关电容单元的第一半导体开关电路的电阻在多个电容开关单元中的第二电容开关单元的第一半导体开关电路的电阻的第一公差内， 开关单元，并且第一电容开关单元的电容电路的电容在第二电容开关单元的电容电路的电容的第二容限内。

公开(公告)号：US20140340173A1

公开(公告)日：2014-11-20

申请号：US14214119

申请日：2014-03-14

申请人： PEREGRINE SEMICONDUCTOR CORPORATION

发明人： Mark L. Burgener ,  James S. Cable

IPC分类号： H03H9/54 ,  H01Q1/50

CPC分类号： H03H9/0009 ,  H01Q1/50 ,  H03H7/38 ,  H03H7/40 ,  H03H7/48 ,  H03H9/0014 ,  H03H9/542 ,  H03H9/547 ,  H03H9/6403 ,  H03H9/6483 ,  H03H9/6489 ,  H03H9/706 ,  H03H9/725 ,  H03H2009/02204 ,  H03H2210/015 ,  H03H2210/025 ,  H03H2210/036 ,  H03H2210/04 ,  H03H2240/00 ,  H03H2250/00 ,  H03J2200/10

摘要： Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters. One or more acoustic wave resonances may be modulated by one or more capacitors or tunable capacitors. One or more acoustic wave modules may also be switchable in a filter. Other embodiments may be described and claimed.

摘要翻译： 谐振器电路和调制谐振器的实施例并在本文中一般地描述。 一个或多个声波谐振器可以串联或并联耦合以产生可调谐滤波器。 一个或多个声波谐振可以由一个或多个电容器或可调谐电容器调制。 一个或多个声波模块也可以在滤波器中切换。 可以描述和要求保护其他实施例。

公开(公告)号：US08791767B2

公开(公告)日：2014-07-29

申请号：US12916338

申请日：2010-10-29

申请人： ByungWook Min ,  Der-Woei Wu

发明人： ByungWook Min ,  Der-Woei Wu

IPC分类号： H03H7/00

CPC分类号： H03J3/20 ,  H01L23/66 ,  H01L2924/0002 ,  H03J2200/10 ,  H01L2924/00

摘要： An integrated circuit (IC) for compensating for a package inductance is disclosed. A first ground pad is directly connected to an on-chip ground node. A second IC ground pad is connected to the on-chip ground node via a tunable capacitor circuit, where the capacitance of the tunable capacitor circuit resonates with the package inductance at the operating frequency of the IC.

摘要翻译： 公开了一种用于补偿封装电感的集成电路（IC）。 第一接地焊盘直接连接到片上接地节点。 第二个IC接地焊盘通过可调电容电路连接到片上接地节点，其中可调电容电路的电容在IC工作频率下与封装电感谐振。

公开(公告)号：US20140120836A1

公开(公告)日：2014-05-01

申请号：US14150392

申请日：2014-01-08

申请人： Shahriar Rokhsaz ,  Edwin de Angel

发明人： Shahriar Rokhsaz ,  Edwin de Angel

IPC分类号： H04B5/00

CPC分类号： H03H7/40 ,  H03J3/20 ,  H03J2200/10 ,  H04B5/0037

摘要： A method and apparatus for detecting RF field strength. A field strength reference generator develops a field strength reference current as a function of a field strength of a received RF signal; and a field strength quantizer develops a digital field-strength value indicative of the field strength reference current. In one embodiment, detected field strength is used to dynamically vary the impedance of a tank circuit whereby, over time, induced current is maximized.

摘要翻译： 一种用于检测射频场强度的方法和装置。 场强参考发生器产生作为接收的RF信号的场强的函数的场强参考电流; 并且场强量化器产生指示场强参考电流的数字场强值。 在一个实施例中，使用检测的场强来动态地改变储能电路的阻抗，由此随着时间的推移，感应电流最大化。

公开(公告)号：US08666350B2

公开(公告)日：2014-03-04

申请号：US12954598

申请日：2010-11-24

申请人： Ari Vauhkonen

发明人： Ari Vauhkonen

IPC分类号： H04B1/10

CPC分类号： H04B1/18 ,  H03G3/3068 ,  H03H7/0115 ,  H03H7/0161 ,  H03H7/1775 ,  H03H11/245 ,  H03J2200/10 ,  H03J2200/32

摘要： A circuit includes, an attenuator responsive to an input signal and a feedback signal, a variable gain low-noise amplifier responsive to the attenuator and to the feedback signal, a tracking filter, a frequency converter, and an RSSI responsive to the variable gain amplifier to generate an output signal to which the feedback signal is responsive. The frequency converter may be a mixer having a single-ended input and a differential output. The circuit may further include an analog baseband block responsive to the mixer to filter out high frequency signals. The tracking tuner performs bandpass filtering operation on the output signals of the variable gain low-noise amplifier.

摘要翻译： 电路包括响应于输入信号和反馈信号的衰减器，响应衰减器和反馈信号的可变增益低噪声放大器，响应于可变增益放大器的跟踪滤波器，频率转换器和RSSI 以产生响应于该反馈信号的输出信号。 变频器可以是具有单端输入和差分输出的混频器。 电路还可以包括响应于混频器的模拟基带块，以滤掉高频信号。 跟踪调谐器对可变增益低噪声放大器的输出信号执行带通滤波操作。

公开(公告)号：US08638159B2

公开(公告)日：2014-01-28

申请号：US12803064

申请日：2010-06-18

申请人： Tero Tapio Ranta ,  Shawn Bawell ,  Robert W. Greene ,  Christopher N. Brindle ,  Robert Mark Englekirk

发明人： Tero Tapio Ranta ,  Shawn Bawell ,  Robert W. Greene ,  Christopher N. Brindle ,  Robert Mark Englekirk

IPC分类号： H03K17/10

CPC分类号： H03K17/162 ,  H01F21/12 ,  H01G4/002 ,  H01G7/00 ,  H01L23/5223 ,  H01L27/0629 ,  H01L27/1203 ,  H01L28/60 ,  H03H7/0153 ,  H03H7/38 ,  H03H11/28 ,  H03J3/20 ,  H03J2200/10 ,  H03K17/102 ,  H03K17/687 ,  H03M1/1061 ,  H03M1/804

摘要： Devices and methods for improving voltage handling and/or bi-directionality of stacks of elements when connected between terminals are described. Such devices and method include use of symmetrical compensation capacitances, symmetrical series capacitors, or symmetrical sizing of the elements of the stack.

公开(公告)号：US20130314175A1

公开(公告)日：2013-11-28

申请号：US13873964

申请日：2013-04-30

申请人： Wispry, Inc.

发明人： Arthur S. Morris, III

IPC分类号： H03H7/01

CPC分类号： H03J5/0209 ,  B81B7/008 ,  B81B2201/01 ,  B81B2207/053 ,  B81C1/00238 ,  B81C2203/0785 ,  H01L23/5223 ,  H01L27/0688 ,  H01L28/40 ,  H01L28/60 ,  H01L2924/0002 ,  H03J2200/10 ,  Y10T29/49105 ,  H01L2924/00

摘要： The present subject matter relates to systems and methods for arranging and controlling programmable combinations of tuning elements in which more than one form of switching technology is combined in a single array. Specifically, such an array can include one or more first switchable elements including a first switching technology (e.g., one or more solid-state-controlled devices) and one or more second switchable elements including a second switching technology that is different than the first switching technology (e.g., one or more micro-electro-mechanical capacitors). The one or more first switchable elements and the one or more second switchable elements can be configured, however, to deliver a combined variable reactance.

摘要翻译： 本主题涉及用于布置和控制调谐元件的可编程组合的系统和方法，其中多个形式的开关技术组合在单个阵列中。 具体地，这样的阵列可以包括一个或多个第一可切换元件，包括第一切换技术（例如，一个或多个固态控制设备）和一个或多个第二可切换元件，其包括与第一开关不同的第二开关技术 技术（例如，一个或多个微电机电容器）。 然而，可以配置一个或多个第一可切换元件和一个或多个第二可切换元件以传递组合的可变电抗。

公开(公告)号：US08525584B2

公开(公告)日：2013-09-03

申请号：US13180303

申请日：2011-07-11

申请人： Yusaku Katsube ,  Yutaka Igarashi ,  Akio Yamamoto

发明人： Yusaku Katsube ,  Yutaka Igarashi ,  Akio Yamamoto

IPC分类号： H03K5/00

CPC分类号： H03H11/1291 ,  H03J2200/08 ,  H03J2200/10

摘要： The disclosed invention enables the cutoff frequency of a filter to be automatically adjusted to an arbitrary setting value within the adjustment range. An automatic cutoff frequency adjusting circuit includes a voltage/current converter circuit, a charge circuit, a discharge circuit, a digital capacitance having a plurality of electrostatic capacitances, a comparator for comparing a voltage inputted to the digital capacitance with a reference voltage, and a capacitance control circuit for controlling the digital capacitance. The time until the comparator detects that the voltage inputted to the digital capacitance is higher than the reference voltage after a reset signal has become a predetermined logic level is measured, and the digital capacitance is controlled by repeating, under a predetermined condition, processing for obtaining a next setting value of the digital capacitance, based on a measurement result, a target value of the digital capacitance, and the current value of the digital capacitance.

摘要翻译： 所公开的发明使得能够将滤波器的截止频率自动调整到调整范围内的任意设定值。 自动截止频率调节电路包括电压/电流转换器电路，充电电路，放电电路，具有多个静电电容的数字电容，用于将输入到数字电容的电压与参考电压进行比较的比较器，以及 用于控制数字电容的电容控制电路。 在比较器检测到在复位信号已经变为预定逻辑电平之后，比较器检测到输入到数字电容的电压高于参考电压的时间，并且通过在预定条件下重复以获得的处理来控制数字电容 基于测量结果，数字电容的目标值和数字电容的当前值的数字电容的下一个设定值。

公开(公告)号：US08421542B2

公开(公告)日：2013-04-16

申请号：US13104404

申请日：2011-05-10

申请人： Luca Romano ,  Randy Tsang

发明人： Luca Romano ,  Randy Tsang

IPC分类号： H03L7/08

CPC分类号： H03L7/099 ,  H03J2200/10 ,  H03L7/085 ,  H03L7/103 ,  H03L7/12 ,  H03L2207/06

摘要： Aspects of the disclosure provide a phase-locked loop (PLL). The PLL includes a voltage-controlled oscillator (VCO), a detector module, and a ramp module. The VCO has a first capacitor unit and a second capacitor unit. The VCO is configured to generate an oscillating signal having a frequency based on a first capacitance of the first capacitor unit and a second capacitance of the second capacitor unit. The detector module is configured to generate a voltage signal as a function of the oscillating signal and a reference signal. The voltage signal is used to control the first capacitor unit to stabilize the frequency of the oscillating signal. The ramp module is configured to generate a ramp signal based on the voltage signal. The ramp signal is used to control the second capacitor unit to ramp the second capacitance from a first value to a second value.