公开(公告)号：US20150244377A1

公开(公告)日：2015-08-27

申请号：US14186661

申请日：2014-02-21

Applicant: VIXS SYSTEMS INC.

Inventor： Chung Fai Au Yeung ,  Michael Cave

IPC: H03L1/00

CPC classification number: H03L1/00 ,  H03L1/02 ,  H03L1/021 ,  H03L1/026

Abstract: An oscillator includes a compensated current source that adjusts an output current based on process, supply voltage, and temperature (“PVT”) variations of an integrated circuit device. The oscillator generates an output signal having a frequency based, in part, on the output current of the compensated current source. Accordingly, the output signal has a relatively low sensitivity to PVT variations.

Abstract translation: 振荡器包括补偿电流源，其基于集成电路器件的过程，电源电压和温度（“PVT”）变化调整输出电流。 振荡器产生一个输出信号，该输出信号的频率部分取决于补偿电流源的输出电流。 因此，输出信号对PVT变化的灵敏度相对较低。

公开(公告)号：US09041475B1

公开(公告)日：2015-05-26

申请号：US14141730

申请日：2013-12-27

Applicant: Cambridge Silicon Radio Limited

Inventor： Peter Andrew Rees Williams

IPC: H03B5/12 ,  H03L5/00

CPC classification number: H03L1/02

Abstract: A method of controlling an integrated circuit chip including first and second clock sources, the first clock source being more thermally stable and having a higher power consumption, the integrated circuit chip being operable in a first mode in which the first clock source is inactive and the second clock source active and in a second mode in which the first and second clock sources are active, the method including operating the integrated circuit chip in the first mode; taking a measurement indicative of temperature; if the measurement indicates that the temperature is outside of a temperature band: activating the first clock source so as to operate the integrated circuit chip in the second mode; recalibrating the second clock source against the first clock source; and following the recalibration, deactivating the first clock source so as to return the integrated circuit chip to the first mode.

Abstract translation: 一种控制包括第一和第二时钟源的集成电路芯片的方法，所述第一时钟源更加热稳定并且具有更高的功率消耗，所述集成电路芯片可操作在第一模式中，其中所述第一时钟源不活动， 第二时钟源是有效的，并且在第一和第二时钟源有效的第二模式中，所述方法包括以第一模式操作集成电路芯片; 测量温度; 如果测量指示温度在温度带之外;激活第一时钟源，以便在第二模式下操作集成电路芯片; 根据第一时钟源重新校准第二时钟源; 并且在重新校准之后，去激活第一时钟源，以使集成电路芯片返回到第一模式。

公开(公告)号：US08947169B2

公开(公告)日：2015-02-03

申请号：US13874683

申请日：2013-05-01

Applicant: Seiko Epson Corporation

Inventor： Tomohiro Tamura ,  Yoshiyuki Maki ,  Noriaki Tanaka

IPC: H03B1/00 ,  H03L1/02 ,  G04G3/04 ,  H03L1/04 ,  H03L7/099

CPC classification number: H03L1/02 ,  G04F5/145 ,  G04G3/04 ,  G04R20/02 ,  H03L1/04 ,  H03L7/099

Abstract: An oscillating device includes an atomic oscillator, an oven controlled crystal oscillator, a correcting unit configured to correct an output signal of the oven controlled crystal oscillator on the basis of an output signal of the atomic oscillator, a housing configured to house the atomic oscillator and the oven controlled crystal oscillator, and a temperature adjusting unit configured to adjust the temperature in the housing to a predetermined temperature.

Abstract translation: 振荡装置包括原子振荡器，烤箱控制的晶体振荡器，校正单元，被配置为基于原子振荡器的输出信号来校正烤箱控制的晶体振荡器的输出信号;壳体，被配置为容纳原子振荡器;以及 烤箱控制的晶体振荡器和温度调节单元，其被配置为将壳体中的温度调节到预定温度。

公开(公告)号：US20140361844A1

公开(公告)日：2014-12-11

申请号：US14029931

申请日：2013-09-18

Applicant: Silicon Laboratories Inc.

Inventor： Emmanuel P. Quevy ,  Daniel N. Koury, JR.

IPC: H03B5/30 ,  H03L1/02

CPC classification number: H02N1/00 ,  B81B3/0081 ,  H03B5/30 ,  H03H3/013 ,  H03H9/02259 ,  H03H2007/006 ,  H03H2009/02291 ,  H03H2009/02385 ,  H03H2009/0248 ,  H03H2009/2442 ,  H03L1/02 ,  H03L1/04 ,  Y10T29/49005 ,  Y10T29/49117

Abstract: A technique decouples a MEMS device from sources of strain by forming a MEMS structure with suspended electrodes that are mechanically anchored in a manner that reduces or eliminates transfer of strain from the substrate into the structure, or transfers strain to electrodes and body so that a transducer is strain-tolerant. The technique includes using an electrically insulating material embedded in a conductive structural material for mechanical coupling and electrical isolation. An apparatus includes a MEMS device including a first electrode and a second electrode, and a body suspended from a substrate of the MEMS device. The body and the first electrode form a first electrostatic transducer. The body and the second electrode form a second electrostatic transducer. The apparatus includes a suspended passive element mechanically coupled to the body and electrically isolated from the body.

Abstract translation: 一种技术通过形成具有悬挂电极的MEMS结构来将MEMS器件与应变源解耦，所述悬置电极机械地锚定以减少或消除应变从衬底转移到结构中的方式，或将应变传递到电极和体，使得换能器 是耐应变的。 该技术包括使用嵌入导电结构材料中的电绝缘材料进行机械耦合和电隔离。 一种装置包括包括第一电极和第二电极以及从MEMS器件的衬底悬挂的主体的MEMS器件。 主体和第一电极形成第一静电换能器。 主体和第二电极形成第二静电换能器。 该装置包括机械耦合到主体并与主体电隔离的悬置的被动元件。

公开(公告)号：US20140354364A1

公开(公告)日：2014-12-04

申请号：US13907068

申请日：2013-05-31

Applicant: Gilles J. Muller ,  Jeffrey C. Cunningham ,  Karthik Ramanan

Inventor： Gilles J. Muller ,  Jeffrey C. Cunningham ,  Karthik Ramanan

IPC: H03L7/06

CPC classification number: H03L7/06 ,  H03B5/06 ,  H03B2200/0094 ,  H03K3/014 ,  H03K3/0231 ,  H03L1/02 ,  H03L3/00 ,  H03L5/00

Abstract: An oscillator that includes a first source current leg and first sink current leg to source current and sink current, respectively, during a startup mode of oscillator operation. The oscillator includes a second source current leg and a second sink current leg to source current and sink current, respectively, during a second mode of oscillator operation.

Abstract translation: 振荡器，其包括在振荡器操作的启动模式期间分别源电流和吸收电流的第一源电流支路和第一汇流电流支路。 振荡器包括第二源极电流支路和第二吸收电流支路，以分别在第二振荡器操作模式期间分别提供电流和吸收电流。

公开(公告)号：US20140247095A1

公开(公告)日：2014-09-04

申请号：US13783086

申请日：2013-03-01

Applicant: ANALOG DEVICES, INC.

Inventor： Robert Timothy Edwards ,  Stephen Mark Beccue

IPC: H03L1/02

CPC classification number: H03L1/02 ,  H03L1/027 ,  H03L7/1974

Abstract: One embodiment relates to a method of compensating for crystal frequency variation over temperature. An example method includes obtaining an indication of temperature, computing a temperature compensation value based on the indication of temperature and a piecewise linear temperature compensation approximation, and compensating for a temperature offset in a crystal reference signal by adjusting a division ratio of a fractional divider in a phase-locked loop. The piecewise linear temperature compensation approximation can represent an approximation of frequency error in a crystal reference signal originating from a crystal over temperature. The piecewise linear temperature compensation approximation can be, for example, a linear approximation, a quadratic approximation, or a cubic approximation.

Abstract translation: 一个实施例涉及一种补偿晶体频率随温度变化的方法。 示例性方法包括获得温度指示，基于温度指示和分段线性温度补偿近似计算温度补偿值，并通过调整晶体参考信号中的分数除法器的分频比来补偿晶体参考信号中的温度偏移 锁相环。 分段线性温度补偿近似可以表示来自晶体过温的晶体参考信号中的频率误差的近似值。 分段线性温度补偿近似可以是例如线性近似，二次逼近或立方近似。

公开(公告)号：US08729969B2

公开(公告)日：2014-05-20

申请号：US13494970

申请日：2012-06-12

Applicant: Junwei Huang

Inventor： Junwei Huang

IPC: H03K3/00

CPC classification number: H03L1/02 ,  H03K3/011 ,  H03K3/0231

Abstract: An oscillation circuit includes a threshold voltage extraction module, a positive temperature coefficient voltage generation module, an addition module, a common-source amplifier module, a charge and discharge module, and a clock output terminal. The common-source amplifier module includes a first field effect transistor (FET) and a second FET. The addition module includes a first operational amplifier, a second operational amplifier, a third FET, a fourth FET, a fifth FET, a sixth FET, a first resistor, a second resistor, and a third resistor. The charge and discharge module includes a seventh FET, an eighth FET, a charge and discharge FET, a first switch, a second switch, a first comparator, a second comparator, a first nor gate and a second nor gate. An oscillation system is further provided. The oscillation circuit and the oscillation system of the present invention have simple structures and are easy to implement.

Abstract translation: 振荡电路包括阈值电压提取模块，正温度系数电压生成模块，加法模块，共源放大器模块，充放电模块和时钟输出端子。 共源放大器模块包括第一场效应晶体管（FET）和第二FET。 所述加法模块包括第一运算放大器，第二运算放大器，第三FET，第四FET，第五FET，第六FET，第一电阻器，第二电阻器和第三电阻器。 充电和放电模块包括第七FET，第八FET，充电和放电FET，第一开关，第二开关，第一比较器，第二比较器，第一，第一和第二和第二门。 还提供了振荡系统。 本发明的振荡电路和振荡系统结构简单，易于实现。

公开(公告)号：US08669816B2

公开(公告)日：2014-03-11

申请号：US13273231

申请日：2011-10-14

Applicant: Yen-Horng Chen ,  Augusto Marques ,  Caiyi Wang

Inventor： Yen-Horng Chen ,  Augusto Marques ,  Caiyi Wang

IPC: H03L7/00

CPC classification number: H03L7/099 ,  H03L1/00 ,  H03L1/02 ,  H03L2207/06 ,  H03L2207/50

Abstract: An integrated circuit device includes at least one controllable oscillator including a first control port and at least one further control port, at least one frequency control module including an output arranged to provide a frequency control signal. The at least one controllable oscillator further includes at least one compensation module including an output arranged to provide at least one compensation signal. The at least one compensation module includes an integrator component arranged to receive at an input thereof a signal that is representative of a difference between the indication of the frequency control signal and a reference signal, and to output an integrated difference signal. The at least one compensation module is arranged to generate the at least one compensation signal based at least partly on the integrated difference signal output by the integrator component.

Abstract translation: 集成电路装置包括至少一个包括第一控制端口和至少一个另外的控制端口的可控振荡器，至少一个频率控制模块，其包括布置成提供频率控制信号的输出。 所述至少一个可控振荡器还包括至少一个补偿模块，该补偿模块包括布置成提供至少一个补偿信号的输出。 所述至少一个补偿模块包括积分器部件，其被布置为在其输入处接收表示所述频率控制信号的指示与参考信号之间的差异的信号，并输出积分差分信号。 至少一个补偿模块被布置成至少部分地基于由积分器组件输出的积分差分信号来产生至少一个补偿信号。

公开(公告)号：US20130285640A1

公开(公告)日：2013-10-31

申请号：US13871030

申请日：2013-04-26

Applicant: LAPIS SEMICONDUCTOR CO., LTD.

Inventor： Kazuya YAMADA ,  Toshihisa SONE ,  Akihiro TAKEI ,  Yuichi YOSHIDA ,  Kengo TAKEMASA

IPC: H03L1/02 ,  G01R21/00

CPC classification number: H03L1/026 ,  G01R1/44 ,  G01R21/00 ,  G01R22/061 ,  G01R22/10 ,  G01R35/04 ,  H01L23/49575 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/05554 ,  H01L2224/05624 ,  H01L2224/05647 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49171 ,  H01L2924/00014 ,  H01L2924/1461 ,  H01L2924/3025 ,  H03K3/011 ,  H03L1/02 ,  H03L1/027 ,  H03L1/04 ,  H01L2924/00 ,  H01L2224/45099

Abstract: A semiconductor device includes an oscillator that oscillates at a specific frequency, a semiconductor integrated circuit that integrates a temperature sensor that detects a peripheral temperature, and a controller that is electrically connected to the oscillator and that corrects temperature dependent error in the oscillation frequency of the oscillator based on the temperature detected by the temperature sensor and a sealing member that integrally seals the oscillator and the semiconductor integrated circuit.

Abstract translation: 半导体器件包括以特定频率振荡的振荡器，集成了检测周围温度的温度传感器的半导体集成电路和电连接到振荡器的控制器，并且校正了振荡频率的温度相关误差 基于由温度传感器检测到的温度的振荡器和一体地密封振荡器和半导体集成电路的密封构件。

公开(公告)号：US20130249611A1

公开(公告)日：2013-09-26

申请号：US13991614

申请日：2011-09-28

Applicant: Martin Vandepas

Inventor： Martin Vandepas

IPC: H03L7/099

CPC classification number: H03L7/0993 ,  H03L1/02 ,  H03L1/022 ,  H03L7/0802 ,  H03L2207/50

Abstract: Described herein are apparatus, system, and method for controlling temperature drift and/or voltage supply drift in a digital phase locked loop (DPLL). The apparatus comprises a DPLL including a digital filter to generate a fine code for controlling a frequency of an output signal of a digital controlled oscillator (DCO) of the DPLL; a logic unit to monitor the fine code and to generate a compensation signal based on the fine code; and a voltage adjustment unit to update a power supply level to the DCO based on the compensation signal, wherein the updated power supply level to cause the digital filter to generate the fine code near the middle of an entire range of the fine code across various temperatures, and wherein the digital filter to generate the fine code near the middle of the entire range across power supply drift.

Abstract translation: 这里描述了用于控制数字锁相环（DPLL）中的温度漂移和/或电压漂移的装置，系统和方法。 该装置包括一个包括数字滤波器的DPLL，以产生用于控制DPLL的数字控制振荡器（DCO）的输出信号的频率的精细代码; 逻辑单元，用于监视精细代码并基于精细代码产生补偿信号; 以及电压调整单元，用于基于所述补偿信号来更新对所述DCO的电源电平，其中所述更新的电源电平使得所述数字滤波器在各种温度下的所述精细代码的整个范围的中间附近生成所述精细代码 ，并且其中所述数字滤波器用于在电源漂移之间的整个范围的中间附近产生精细代码。