公开(公告)号：US09444467B2

公开(公告)日：2016-09-13

申请号：US14978397

申请日：2015-12-22

Applicant: SEIKO EPSON CORPORATION

Inventor： Kensaku Isohata ,  Atsushi Kiyohara

IPC: H03L1/02 ,  H03L1/04

CPC classification number: H03L1/028 ,  H03L1/025 ,  H03L1/04

Abstract: An oscillator includes an oscillation element; an oscillation circuit which causes the oscillation element to oscillate; a heat generation element which heats the oscillation element; a temperature control circuit which controls the heat generation element; and a temperature correction circuit which corrects frequency-temperature characteristics of an output signal of the oscillation circuit.

公开(公告)号：US09225340B2

公开(公告)日：2015-12-29

申请号：US13131969

申请日：2009-11-30

Applicant: Timothy Roberton Rae ,  Oleg Nokhimovich Sheynin ,  Brent John Robinson

Inventor： Timothy Roberton Rae ,  Oleg Nokhimovich Sheynin ,  Brent John Robinson

IPC: G06F1/04 ,  H03L1/02 ,  H03B5/04 ,  H03J1/00

CPC classification number: H03L1/026 ,  H03B5/04 ,  H03J1/0008 ,  H03L1/025

Abstract: Disclosed and claimed is a method of improving the effective frequency stability of a frequency reference, wherein an algorithm utilizing temperature frequency hysteresis characterization values or hysteresis model parameters, and temperature history data, is used to account for effects of temperature frequency hysteresis. Devices and manufacturing systems are also claimed.

Abstract translation: 公开并要求保护的是改进频率参考的有效频率稳定性的方法，其中使用利用温度频率滞后特征值或滞后模型参数的算法以及温度历史数据来解释温度频率滞后的影响。 还要求装置和制造系统。

公开(公告)号：US20140337261A1

公开(公告)日：2014-11-13

申请号：US14336951

申请日：2014-07-21

Applicant: Greenray Industries, Inc.

Inventor： John C. Esterline

IPC: G06N3/08

CPC classification number: G06N3/02 ,  G06N3/00 ,  G06N3/08 ,  H03L1/025 ,  H03L1/026 ,  H03L1/04

Abstract: Systems and methods for controlling frequency output of an electronic oscillator to compensate for effects of one or more parameters experienced by the oscillator incorporate artificial neural network processing functionality for generating correction signals. A neural network processing module includes one or more neurons which receive one or more inputs corresponding to parameters of an electronic oscillator, such as temperature and control voltage (or correction voltage). One or more sets of weights are calculated and applied to inputs to the neurons of the neural network as part of a training process, wherein the weights help shape the output of the neural network processing module. The neural network may include a linear summation module configured to provide an output signal that is at least partially based on outputs of the one or more neurons.

Abstract translation: 用于控制电子振荡器的频率输出以补偿振荡器经历的一个或多个参数的影响的系统和方法包括用于产生校正信号的人造神经网络处理功能。 神经网络处理模块包括一个或多个神经元，其接收与电子振荡器的参数相对应的一个或多个输入，诸如温度和控制电压（或校正电压）。 计算一组或多组权重并将其应用于作为训练过程的一部分的神经网络的神经元的输入，其中权重有助于形成神经网络处理模块的输出。 神经网络可以包括被配置为提供至少部分地基于一个或多个神经元的输出的输出信号的线性求和模块。

公开(公告)号：US20140167866A1

公开(公告)日：2014-06-19

申请号：US13715057

申请日：2012-12-14

Applicant: BROADCOM CORPORATION

Inventor： Praveen VASISHTHA ,  Satyaprasad SRINIVAS

IPC: G01R35/00

CPC classification number: G01R35/005 ,  H03B5/06 ,  H03B5/36 ,  H03B2200/0094 ,  H03L1/025

Abstract: A calibrated crystal warm-up method that can include determining the number of clock cycles of a crystal clock reference signal from a crystal oscillator occur during a single clock cycle of a low-power oscillator. Further, the determination can occur when the crystal oscillator is warmed up. The method can also include comparing a number of clock cycles of the crystal clock reference signal with a previously determined number of clock cycles of the crystal clock reference signal to indicate whether the crystal oscillator is warmed up. Further, the method can include counting the number of clock cycles of a low-power clock reference signal have occurred up until the time it has been determined that the crystal oscillator has been warmed up.

Abstract translation: 可以在低功率振荡器的单个时钟周期期间发生校准的晶体预热方法，其中包括确定晶体振荡器的晶体时钟参考信号的时钟周期数。 此外，当晶体振荡器被加热时，可以发生确定。 该方法还可以包括将晶体时钟参考信号的多个时钟周期与晶体时钟参考信号的预先确定的时钟周期数进行比较，以指示晶体振荡器是否被加热。 此外，该方法可以包括对已经发生的低功率时钟参考信号的时钟周期数进行计数，直到确定晶体振荡器已经被加热为止。

公开(公告)号：US08253506B2

公开(公告)日：2012-08-28

申请号：US12897918

申请日：2010-10-05

Applicant: Li Liu ,  Chiewcharn Narathong

Inventor： Li Liu ,  Chiewcharn Narathong

IPC: H03C3/22 ,  H03L1/02

CPC classification number: H03L1/025 ,  H03B5/04 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03L1/023 ,  H03L7/099 ,  H03L7/104 ,  H03L7/1976

Abstract: A resonator of a VCO includes a fine tuning main varactor circuit, an auxiliary varactor circuit, and a coarse tuning capacitor bank circuit coupled in parallel with an inductance. The main varactor circuit includes a plurality of circuit portions that can be separately disabled. Within each circuit portion is a multiplexing circuit that supplies a selectable one of either a fine tuning control signal (FTAVCS) or a temperature compensation control signal (TCAVCS) onto a varactor control node within the circuit portion. If the circuit portion is enabled then the FTAVCS is supplied onto the control node so that the circuit portion is used for fine tuning. If the circuit portion is disabled then the TCAVCS is supplied onto the control node so that the circuit portion is used to combat VCO frequency drift as a function of temperature. How the voltage of the TCAVCS varies with temperature is digitally programmable.

Abstract translation: VCO的谐振器包括微调主变容二极管电路，辅助变容二极管电路和与电感并联耦合的粗调电容器组电路。 主变容二极管包括多个电路部分，其可以单独禁用。 在每个电路部分内是多路复用电路，其将微调控制信号（FTAVCS）或温度补偿控制信号（TCAVCS）中的可选择的一个提供到电路部分内的变容二极管控制节点上。 如果电路部分被使能，则FTAVCS被提供到控制节点上，使得电路部分被用于微调。 如果电路部分被禁用，则TCAVCS被提供到控制节点上，使得电路部分用于抵抗作为温度的函数的VCO频率漂移。 TCAVCS的电压如何随温度而变化是可数字编程的。

公开(公告)号：US20100265000A1

公开(公告)日：2010-10-21

申请号：US12759171

申请日：2010-04-13

Applicant: Masakazu Kishi

Inventor： Masakazu Kishi

IPC: H03L1/02 ,  H03B5/30

CPC classification number: H03L1/025

Abstract: A temperature compensated crystal oscillator is mounted to a board. A quartz resonator includes a quartz chip that generates an oscillation frequency. A resistive element is formed on the quartz chip. A temperature sensor is located closer to the board than the quartz resonator. The compensation part compensates for a change in the oscillation frequency generated by the quartz resonator based on a value of a current flowing in the resistive element and an output of the temperature sensor.

Abstract translation: 温度补偿晶体振荡器安装在电路板上。 石英谐振器包括产生振荡频率的石英芯片。 电阻元件形成在石英片上。 温度传感器位于比石英谐振器更靠近板的位置。 补偿部分基于在电阻元件中流动的电流的值和温度传感器的输出来补偿由石英谐振器产生的振荡频率的变化。

公开(公告)号：US07741924B2

公开(公告)日：2010-06-22

申请号：US12127201

申请日：2008-05-27

Applicant: Hiroshi Matsui ,  Yuichi Takagi

Inventor： Hiroshi Matsui ,  Yuichi Takagi

IPC: H03L1/02

CPC classification number: H03L1/025

Abstract: A temperature-compensated crystal oscillator including an oscillation circuit which includes an oscillator, a temperature detector, a voltage variable capacitance element coupled to an oscillation loop of the oscillation circuit, and a temperature compensation circuit. The temperature compensation circuit is configured to apply a compensation voltage to the voltage variable capacitance element to compensate a temperature change in response to temperature data detected by the temperature detector. The temperature compensation circuit has a plurality of correction point data. The respective correction point data is set in advance for each divided temperature zone, selects a first correction point data in a lower temperature zone and a second correction point data in a higher temperature zone, as compared with the detected temperature data, performs an interpolation between the first and second correction point data by a weighted averaged first-order interpolation, and generates the compensation voltage.

Abstract translation: 一种温度补偿晶体振荡器，包括振荡电路，该振荡电路包括耦合到振荡电路的振荡环路的振荡器，温度检测器，电压可变电容元件以及温度补偿电路。 温度补偿电路被配置为向电压可变电容元件施加补偿电压，以补偿由温度检测器检测到的温度数据的温度变化。 温度补偿电路具有多个校正点数据。 对于每个分割的温度区域预先设定各个校正点数据，与检测到的温度数据相比，选择较低温度区域中的第一校正点数据和较高温度区域中的第二校正点数据，执行在 第一和第二校正点数据通过加权平均一阶插值，并产生补偿电压。

公开(公告)号：US07542445B2

公开(公告)日：2009-06-02

申请号：US11423965

申请日：2006-06-14

Applicant: Lars I. Berggren

Inventor： Lars I. Berggren

IPC: H04Q7/00

CPC classification number: H04B1/40 ,  H03L1/025 ,  H03L7/00

Abstract: A mobile radio terminal includes a system clock having a controller, a frequency generator for outputting a clock signal and a temperature sensor for detecting an operating temperature of the frequency generator. The controller adjusts a frequency of the clock signal by inputting a frequency generator control value associated with the detected operating temperature to the frequency generator. A control circuit that manages overall operation of the mobile radio terminal is configured to place the mobile radio in one of plural operational modes and the clock signal is used to clock an electrical component activated in connection with the one of the operational modes.

Abstract translation: 移动无线电终端包括具有控制器，用于输出时钟信号的频率发生器和用于检测频率发生器的工作温度的温度传感器的系统时钟。 控制器通过将与检测到的工作温度相关联的频率发生器控制值输入到频率发生器来调节时钟信号的频率。 管理移动无线电终端的总体操作的控制电路被配置为将移动无线电设置为多种操作模式中的一种，并且时钟信号用于对与该操作模式中的一种相关联地激活的电气元件进行计时。

公开(公告)号：US07525392B2

公开(公告)日：2009-04-28

申请号：US11500125

申请日：2006-08-05

Applicant: Min Ming Tarng

Inventor： Min Ming Tarng

IPC: H03L1/00 ,  H03L7/06 ,  H03L7/18

CPC classification number: H03B5/366 ,  H03B5/04 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/124 ,  H03H9/173 ,  H03H9/545 ,  H03L1/025 ,  H03L7/18 ,  H03L7/1976

Abstract: A XtalClkChip based on the application of hierarchical circuit and noise circuit design on the RF circuits of LC oscillation tank and the multi-phase fractional PLL are developed. The XtalClkChip combines both the XtalChip and multi-phase fractional PLL to provide the customer's clock to customer directly. This XtalChip will replace the crystal and the crystal circuit. The XtalClkChip will replace all the customer's clock circuit.

Abstract translation: 基于在LC振荡槽和多相分数PLL的RF电路上应用分级电路和噪声电路设计的XtalClkChip被开发。 XtalClkChip结合了XtalChip和多相分数PLL，可以直接向客户提供时钟。 该XtalChip将取代晶体和晶体电路。 XtalClkChip将取代所有客户的时钟电路。

公开(公告)号：US20090066157A1

公开(公告)日：2009-03-12

申请号：US12229412

申请日：2008-08-23

Applicant: Min Ming Tarng ,  Mei Jech Lin ,  Eric Yu-Shiao Tarng ,  Alfred Yu-Chi Tarng ,  Angela Yu-Shiu Tarng ,  Jwu-Ing Nieh ,  Huang-Chang Tarng ,  Shun-Yu Nieh

Inventor： Min Ming Tarng ,  Mei Jech Lin ,  Eric Yu-Shiao Tarng ,  Alfred Yu-Chi Tarng ,  Angela Yu-Shiu Tarng ,  Jwu-Ing Nieh ,  Huang-Chang Tarng ,  Shun-Yu Nieh

IPC: H02J4/00

CPC classification number: H03B5/04 ,  H03B5/1212 ,  H03B5/1221 ,  H03B5/1228 ,  H03B5/124 ,  H03B5/366 ,  H03L1/025 ,  H03L5/00 ,  H03L7/18 ,  H03L7/1976 ,  Y10T307/406

Abstract: Green Design is to save the resource and energy for earth. Applying the recycling of energy concept to the electrical and electronic device and circuit, we can save many nuclear power plants to save the earth and human society. Comparing with today power amplifier PA has only 10% efficiency, the high linearity and high efficiency power-managing amplifier PMA and differential power managing amplifier DPMA can have the power efficiency more than 95%. The recycling switch inductor drive power management unit PMUx gets rid of the switch loss and has power efficiency more than 99%. The Xtaless Clock generator based on on-chip gain-boost-Q LC tank and the Spurfree and Jitterless Frequency & Phase Lock Loop FPLL. The DPMA directly supply the power to the plasma light. The charge doped light mirror reduces the voltage swing, increases the power efficiency and operating speed of plasma light, projective TV, LaserCom. The plasma light can use for the home light to have the efficiency of 95% to replace the conventional light bulb having only 10% efficiency. The bipolar LED serves as both thermal detector and fault indication light saving a lot energy and enhances the safety of electrical vehicle. The resistorless zero current detector saves a lot power dissipation in the PMU. The 5-less green SOC design of Xtaless clock generator, the capless LDVR (low drop voltage regulator), the inductorless SM (Switch Mode Power Regulator), resistorless current detector and diodeless TRNG (True Random Number Generator) can save the earth.

Abstract translation: 绿色设计是为了节省地球的资源和能源。 将能源概念的回收利用于电气电子设备和电路，可以节省许多核电厂，拯救地球和人类社会。 与当今功率放大器PA相比，效率仅为10％，高线性度和高效率的功率管理放大器PMA和差分功率管理放大器DPMA的功率效率可以达到95％以上。 回收开关电感驱动电源管理单元PMUx消除了开关损耗，功率效率高达99％以上。 基于片上增益 - Q LC液晶显示器的Xtaless时钟发生器和无刷和无抖动频率与相位锁相环FPLL。 DPMA直接为等离子灯供电。 电荷掺杂光反射镜降低了电压摆幅，提高了等离子光，投影电视，LaserCom的功率效率和运行速度。 等离子体光可以用于家用灯具有95％的效率来替代仅具有10％效率的传统灯泡。 双极LED作为热检测器和故障指示灯，节省了大量的能量，增强了电动汽车的安全性。 无电阻零电流检测器在PMU中节省了大量功耗。 Xtaless时钟发生器，无电容LDVR（低压降稳压器），无电感SM（开关模式功率调节器），无阻电流检测器和无二极管TRNG（真随机数发生器）的5通绿色SOC设计可以节省地电。