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51. 发明申请

WO2008048563A2 CRYSTAL OSCILLATOR EMULATOR 审中-公开
标题翻译：晶体振荡器仿真器
公开(公告)号：WO2008048563A2
公开(公告)日：2008-04-24
申请号：PCT/US2007/022015
申请日：2007-10-16
申请人： MARVELL WORLD TRADE LTD. , SUTARDJA, Sehat
发明人： SUTARDJA, Sehat
CPC分类号： H01L23/34 , H01L2924/0002 , H01L2924/16152 , H01L2924/16235 , H01L2924/3011 , H03L1/026 , H03L1/027 , H03L5/00 , H03L7/07 , H03L7/1974 , H03L7/1976 , H01L2924/00
摘要： A crystal oscillator emulator integrated circuit comprises a first temperature sensor that senses a first temperature of the integrated circuit. Memory stores calibration parameters and selects at least one of the calibration parameters based on the first temperature. A semiconductor oscillator generates an output signal having a frequency, which is based on the calibration parameters, and an amplitude. An amplitude adjustment module compares the amplitude to a predetermined amplitude and generates a control signal that adjusts the amplitude based on the comparison.
摘要翻译：晶体振荡器仿真器集成电路包括感测集成电路的第一温度的第一温度传感器。存储器存储校准参数并基于第一温度选择至少一个校准参数。半导体振荡器产生具有基于校准参数的频率和振幅的输出信号。幅度调整模块将该幅度与预定幅度进行比较，并产生基于该比较调整幅度的控制信号。

52. 发明申请

WO2007016604A3 LOW-NOISE HIGH-STABILITY CRYSTAL OSCILLATOR 审中-公开
标题翻译：低噪声高稳定性晶体振荡器
公开(公告)号：WO2007016604A3
公开(公告)日：2008-02-14
申请号：PCT/US2006030018
申请日：2006-08-01
申请人： MARVELL WORLD TRADE LTD , GREENBERG JODY
发明人： GREENBERG JODY
IPC分类号： H03B5/30 , H03B5/32
CPC分类号： H03L5/00 , H03B5/364
摘要： Apparatus and method for providing high stability crystal oscillator, see figure 2. A crystal oscillator (with resonator 210) is shown having controlled-amplitude differential output signals via amplitude control (250) and DC level control via (240). The DC level feedback loop can set the DC component of the oscillator signals to a voltage midway between the two supply volatges. The amplitude control loop sets the amplitude of the output of the crystal oscillator signal to be within a range. The amplitude can be set to provide a maximum swing without clipping the supply voltages in order to provide high stability and minimal jitter. The time constants of the two loops can be separated such that instabihtes are avoided.
摘要翻译：用于提供高稳定性晶体振荡器的装置和方法参见图2.通过幅度控制（250）和通过（240）的直流电平控制，示出了具有受控振幅差分输出信号的晶体振荡器（具有谐振器210）。直流电平反馈环路可以将振荡器信号的直流分量设置为两个电源电压之间的一个电压。振幅控制回路将晶体振荡器信号的输出振幅设定在一个范围内。振幅可以设定为提供最大摆幅而不削减电源电压，以提供高稳定性和最小抖动。可以分离两个循环的时间常数，以避免instabilhtes。

53. 发明申请

WO2008005048A2 SYSTEMS AND METHODS FOR DISTRIBUTING A CLOCK SIGNAL 审中-公开
标题翻译：用于分配时钟信号的系统和方法
公开(公告)号：WO2008005048A2
公开(公告)日：2008-01-10
申请号：PCT/US2006049574
申请日：2006-12-29
申请人： UNIV COLUMBIA , CHAN STEVEN , SHEPARD KENNETH , XU ZHENG
发明人： CHAN STEVEN , SHEPARD KENNETH , XU ZHENG
IPC分类号： H03B5/12
CPC分类号： G06F1/00 , G06F1/10 , H03L5/00 , H03L7/081 , H03L7/087 , H03L7/24
摘要： Systems and methods for distributing a clock signal are disclosed. In some embodiments, systems for distributing a clock signal include a plurality of resonant oscillators, each comprising an inductor; and a differential clock grid that distributes the clock signal. The differential clock grid is coupled to the plurality of resonant oscillators and the clock signal, and the inductances of the inductors are configured such that a resonant frequency of the plurality of resonant oscillators is substantially equal to the frequency of the clock signal.
摘要翻译：公开了用于分配时钟信号的系统和方法。在一些实施例中，用于分配时钟信号的系统包括多个谐振振荡器，每个谐振振荡器包括电感器; 以及分配时钟信号的差分时钟网格。差分时钟网格被耦合到多个谐振振荡器和时钟信号，并且电感器的电感被配置成使得多个谐振振荡器的谐振频率基本上等于时钟信号的频率。

54. 发明申请

WO2007035728A2 VOLTAGE CONTROLLED OSCILLATOR WITH AMPLITUDE CONTROL 审中-公开
标题翻译：带有振幅控制的电压控制振荡器
公开(公告)号：WO2007035728A2
公开(公告)日：2007-03-29
申请号：PCT/US2006/036471
申请日：2006-09-19
申请人： FREESCALE SEMICONDUCTOR INC. , HUYNH, Phuong, T.
发明人： HUYNH, Phuong, T.
IPC分类号： H03L5/00
CPC分类号： H03L5/00
摘要： A voltage controlled oscillator device with amplitude control is provided. A voltage controlled oscillator (VCO) (101) receives an input current. An error amplifier (117) compares an amplitude of oscillation (113) of the input current to a reference voltage (115) to provide a difference, and outputs a shunting current responsive to the difference. A feedback control reduces the input current to the VCO (101) responsive to the shunting current.
摘要翻译：提供了一种具有幅度控制的压控振荡器装置。压控振荡器（VCO）（101）接收输入电流。误差放大器（117）将输入电流的振荡幅度（113）与参考电压（115）进行比较以提供差值，并响应于该差值输出分流电流。响应于分流电流，反馈控制降低了输入到VCO（101）的电流。

55. 发明申请

WO2006072540A1 CONTROLLED OSCILLATOR 审中-公开
标题翻译：控制振荡器
公开(公告)号：WO2006072540A1
公开(公告)日：2006-07-13
申请号：PCT/EP2005/056830
申请日：2005-12-15
申请人： THOMSON LICENSING , SCHWANENBERGER, Thomas , SCHEMMANN, Heinrich
发明人： SCHWANENBERGER, Thomas , SCHEMMANN, Heinrich
IPC分类号： H03B5/06 , H03L1/02
CPC分类号： H03L5/00 , H03B5/06 , H03B5/1215 , H03B5/1231 , H03B5/124 , H03L1/026 , H03L3/00
摘要： In a controlled oscillator having a resonator (2) and at least one amplifier (1) with positive feedback, the oscillation signal, which is present at the resonator (2), is fed to an analogue-to-digital converter (21). The analogue-to-digital converter (21) supplies numerical information on the amplitude and/or the phase of the oscillation signal to a control circuit (22). The control circuit (22) emits at least one control signal for setting the phase and/or the amplitude of the oscillation of the oscillator. For producing the control signal the control circuit (22) may be associated with a table of parameters (24). The output of the control circuit (22) is formed by a digital-to-analogue converter (23). In one embodiment, the oscillator is a push-pull oscillator having two transistors (34) as amplifiers, which are connected to a controllable current source (7). The control circuit (22) in this case controls the operating points of the amplifiers (34) via a bias at the base connections of the transistors (34) and via the current through the controllable current source (7). In order to start the oscillator, the base potentials of the transistors (34) are set such that they are asymmetrical.
摘要翻译：在具有谐振器（2）和具有正反馈的至少一个放大器（1）的受控振荡器中，存在于谐振器（2）处的振荡信号被馈送到模拟 - 数字转换器（21）。模数转换器（21）将关于振荡信号的振幅和/或相位的数字信息提供给控制电路（22）。控制电路（22）发出用于设定振荡器的振荡的相位和/或振幅的至少一个控制信号。为了产生控制信号，控制电路（22）可以与参数表（24）相关联。控制电路（22）的输出由数 - 模转换器（23）形成。在一个实施例中，振荡器是具有作为放大器的两个晶体管（34）的推挽式振荡器，其连接到可控电流源（7）。在这种情况下，控制电路（22）通过晶体管（34）的基极连接处的偏压和经由可控电流源（7）的电流来控制放大器（34）的工作点。为了启动振荡器，晶体管（34）的基极电位被设定为使其不对称。

56. 发明申请

WO2006055792A1 ADJUSTABLE-BIAS VCO 审中-公开
公开(公告)号：WO2006055792A1
公开(公告)日：2006-05-26
申请号：PCT/US2005/041849
申请日：2005-11-17
申请人： QUALCOMM Incorporated , GOLDBLATT, Jeremy Mark , AHN, Hee Tae , CICCARELLI, Steven C.
发明人： GOLDBLATT, Jeremy Mark , AHN, Hee Tae , CICCARELLI, Steven C.
IPC分类号： H03L7/099 , H03B5/12 , H04B1/10
CPC分类号： H03L7/18 , H03B5/1218 , H03B5/1231 , H03B5/1243 , H03L5/00 , H03L7/099 , H03L2207/06 , H04B1/109 , H04B1/71
摘要： A dynamically programmable RF receiver includes an adjustable bias voltage-controlled oscillator (ABVCO) that operates in both low-interference and high-interference modes. The ABVCO uses a drive current to generate an output signal whose frequency varies based on a control voltage. When a jammer detector detects an interference signal, a state machine adjusts the ABVCO from the low-interference mode to the high-interference mode. Reciprocal mixing between the interference signal and phase noise in the output signal is reduced in the high-interference mode by increasing the drive current to reduce the phase noise. The ABVCO switches to the high-interference mode when a bias control circuit sends a bias control signal to the ABVCO, causing the ABVCO to generate the output signal using a greater amount of drive current. A programmable register contains a control value that determines the magnitude of the bias control signal and ultimately the magnitude of the drive current.
摘要翻译：动态可编程RF接收器包括一个可调低压干扰和高干扰模式的可调偏置压控振荡器（ABVCO）。 ABVCO使用驱动电流来产生其频率根据控制电压而变化的输出信号。当干扰检测器检测到干扰信号时，状态机将ABVCO从低干扰模式调整为高干扰模式。通过增加驱动电流以降低相位噪声，可以在高干扰模式下降低输出信号中的干扰信号与相位噪声之间的相互混合。当偏置控制电路向ABVCO发送偏置控制信号时，ABVCO切换到高干扰模式，导致ABVCO使用更大的驱动电流产生输出信号。可编程寄存器包含一个控制值，用于确定偏置控制信号的幅度，最终确定驱动电流的大小。

57. 发明申请

WO2003052925A1 BICMOS AC FILTER CIRCUIT 审中-公开
标题翻译： BICMOS交流滤波电路
公开(公告)号：WO2003052925A1
公开(公告)日：2003-06-26
申请号：PCT/US2002/022096
申请日：2002-06-28
申请人： XANOPTIX, INC. , WYMAN, Ted , KIAMILEV, Fouad
发明人： WYMAN, Ted , KIAMILEV, Fouad
IPC分类号： H03F1/02
CPC分类号： H03F1/02 , H03F3/16 , H03F3/45 , H03F21/00 , H03L5/00
摘要： An alternating current filter circuit for a BiCMOS differential amplifier has a circuit (Q1, Q2) that computes a base current of the BiCMOS differential amplifier and a circuit (Q4, Q5) that generates an offset current based upon the computing.
摘要翻译：用于BiCMOS差分放大器的交流滤波器电路具有计算BiCMOS差分放大器的基极电流的电路（Q1，Q2）和基于该计算产生偏移电流的电路（Q4，Q5）。

58. 发明申请

WO02080351A8 SYSTEM FOR CONTROLLING THE FREQUENCY OF AN OSCILLATOR 审中-公开
标题翻译：用于控制振荡器频率的系统
公开(公告)号：WO02080351A8
公开(公告)日：2003-01-09
申请号：PCT/US0209243
申请日：2002-03-25
申请人： CONEXANT SYSTEMS INC
发明人： DAMGAARD MORTEN , DOMINO WILLIAM J , MAGOON RAHUL , MOLNAR ALYOSHA C , ZACHAN JEFF
IPC分类号： H03B1/00 , H03L5/00 , H03L7/087 , H03L7/099 , H03L7/113 , H03L7/187 , H04B1/40 , H03D3/24 , H03L7/00 , H03L7/06 , H04B1/06 , H04B1/18 , H04B1/26 , H04L25/49 , H04L27/06
CPC分类号： H03L7/099 , H03B2201/025 , H03B2201/0291 , H03J2200/10 , H03L5/00 , H03L7/087 , H03L7/113
摘要： 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.
摘要翻译：提供了用于控制频率合成器（200）中的可控振荡器（202）的输出信号的频率的系统。一个这样的系统包括可控振荡器（202）和频率控制电路（208）。可控振荡器（202）被配置为产生具有预定频率的输出信号。可控振荡器（202）还配置有由频率控制电路（208）控制的多个操作状态。可控振荡器（202）的每个操作状态为可控振荡器（202）的输出信号定义不同的频率。频率控制电路（208）接收可控振荡器（202）的输出信号，并确定最接近于预定频率的输出信号的不同频率。频率控制电路（208）还可以向可控振荡器（202）提供控制信号，该控制信号被配置为将可控振荡器（202）改变到对应于最接近于预定频率的不同频率的操作状态。

59. 发明申请

WO1997029545A1 QUADRATURE OSCILLATOR HAVING AMPLITUDE CONTROL MEANS BASED ON A TRIGONOMETRIC IDENTITY 审中-公开
标题翻译：基于三角形识别的具有振幅控制的正弦振荡器
公开(公告)号：WO1997029545A1
公开(公告)日：1997-08-14
申请号：PCT/US1997000987
申请日：1997-01-22
申请人： ANALOG DEVICES
发明人： ANALOG DEVICES , GILBERT, Barrie
IPC分类号： H03L05/00
CPC分类号： H03B5/20 , H03H11/1291 , H03K3/0231 , H03L5/00
摘要： A quadrature oscillator (152) includes an amplitude control circuit (154) that is based upon a trigonometric identity. The amplitude control circuit (154) includes two squaring circuits (174, 176), each receiving a respective quadrature oscillator signal. The outputs (182, 188) of the two squaring circuits are summed in a summing circuit (190), to produce a control signal (168) provided to damping diodes (Q84-Q87) coupled to the outputs of the quadrature oscillator (152). The damping diodes (Q84-Q87) provide a shunt positive resistance at the oscillator (152) outputs in response to the control signal (168) that has the effect of cancelling the shunt negative resistance of the oscillator (152), thereby controlling the oscillator amplitude.
摘要翻译：正交振荡器（152）包括基于三角形标识的振幅控制电路（154）。幅度控制电路（154）包括两个平方电路（174,176），每个接收相应的正交振荡器信号。两个平方电路的输出（182,188）在求和电路（190）中相加，以产生提供给耦合到正交振荡器（152）的输出的阻尼二极管（Q84-Q87）的控制信号（168）。阻尼二极管（Q84-Q87）响应于具有消除振荡器（152）的并联负电阻的效果的控制信号（168）在振荡器（152）输出端提供并联正电阻，由此控制振荡器振幅。

60. 发明申请

WO2016120503A1 SISTEMA DE SINCRONIZACIÓN PARA UNA UNIDAD DE GENERACIÓN ELÉCTRICA Y MÉTODO ASOCIADO 审中-公开
标题翻译：电力发电机组同步系统及相关方法
公开(公告)号：WO2016120503A1
公开(公告)日：2016-08-04
申请号：PCT/ES2015/070066
申请日：2015-01-30
申请人： INGETEAM POWER TECHNOLOGY, S.A.
发明人： CATALAN LAGO, Pedro , OLEA OREGI, Eneko , CANDELA GARCIA, José Ignacio , LUNA ALLOZA, Alvaro , ROUZBEHI, Kumars
IPC分类号： H02J3/08 , H02J3/40 , H03L7/107
CPC分类号： H02J3/44 , H02J3/16 , H02J3/40 , H03L5/00 , H03L7/00 , H03L7/07 , H03L7/107
摘要： Sistema de sincronización y método para una unidad de generación eléctrica acoplada a un sistema de energía eléctrica, para facilitar la sincronización entre la unidad de generación eléctrica y el sistema de energía eléctrica. Se genera una señal de sincronización (S s ) por medio de al menos un lazo de seguimiento de fase (4) a partir de una señal eléctrica principal (S e ) recibida desde el sistema de energía eléctrica. El lazo de seguimiento de fase (4) comprende un esquema controlador con una pluralidad de parámetros de ganancia (Kmn) para eliminar al menos algunas de las desviaciones de la señal de sincronización (S s ) con respecto a la señal eléctrica principal (S e ), y dichos parámetros de ganancia (K mn ) se ajustan en función de la frecuencia y la amplitud de dicha señal eléctrica principal (Se).
摘要翻译：本发明涉及一种用于与电能系统耦合的发电机单元的同步系统和方法，用于促进发电机单元和电能系统之间的同步。通过从电能系统接收的主电信号（Se）的至少一个相位跟踪环路（4）产生同步信号（Ss）。相位跟踪环路（4）包括具有多个增益参数（Kmn）的控制器模式，用于从主电信号（Se）消除同步信号（Ss）的至少一些偏差，并且所述增益参数 Kmn）根据所述主电信号（Se）的频率和振幅进行调整。

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