公开(公告)号：US20160013795A1

公开(公告)日：2016-01-14

申请号：US14555927

申请日：2014-11-28

Applicant: The University of Sydney

Inventor： Jarrah Sastrawan ,  Michael J. Biercuk

IPC: H03L7/08 ,  H03L7/26

CPC classification number: H03L7/26 ,  G04F5/14 ,  H03L1/026

Abstract: This disclosure relates to controlling an oscillator based on a measurement of a frequency reference. A controller determines a control value to control the oscillator based on multiple error values. Each error value is indicative of a measurement of a frequency difference between the oscillator and a frequency reference over a period of time. The determination of the error value is further based on an application time value indicative of a time of application of the control value to the oscillator. Since the control value is based on the application time the controller can compensate for inaccuracies arising from both evolution of the oscillator between measurements and applying the correction at a later time after the measurement. Further, since the multiple error values represent a frequency difference over different periods of time, the controller can compensate for wide range of statistical effects.

Abstract translation: 本公开涉及基于频率参考的测量来控制振荡器。 控制器根据多个误差值确定控制值以控制振荡器。 每个误差值表示在一段时间内振荡器和频率参考之间的频率差的测量。 误差值的确定进一步基于指示对振荡器施加控制值的时间的应用时间值。 由于控制值基于应用时间，控制器可以补偿由测量之间的振荡器的演变引起的不准确性，并且在测量之后的较晚时间应用校正。 此外，由于多个误差值表示不同时间段的频率差，所以控制器可以补偿广泛的统计效应。

公开(公告)号：US20150372681A1

公开(公告)日：2015-12-24

申请号：US14747068

申请日：2015-06-23

Applicant: Cirrus Logic, Inc.

Inventor： John L. Melanson ,  Roderick D. Holley ,  Jaimin Mehta

IPC: H03L1/02 ,  H03B5/32 ,  H03L7/099

CPC classification number: H03L1/028 ,  H03B5/32 ,  H03L1/026 ,  H03L7/0991

Abstract: A system may include a sampling circuit, a temperature calibration system, a phase detector, a virtual phase-locked loop, and a sample rate converter. The sampling circuit may be configured to generate a series of digitally-sampled data at a sampling frequency provided by a local clock. The temperature calibration system may be configured to determine a temperature-based timing compensation with respect to the local clock. The phase detector may be configured to estimate an error of the local clock in view of the reference clock. The virtual phase-locked loop may be configured to generate a virtual clock based on the temperature-based timing compensation and the error. The sample rate converter may be configured to generate a corrected series of digitally-sampled data in response to the virtual clock by interpolating the series of digitally-sampled data to correct for the error.

Abstract translation: 系统可以包括采样电路，温度校准系统，相位检测器，虚拟锁相环和采样率转换器。 采样电路可以被配置为以由本地时钟提供的采样频率生成一系列数字采样数据。 温度校准系统可以被配置为确定相对于本地时钟的基于温度的定时补偿。 相位检测器可以被配置为考虑到参考时钟来估计本地时钟的误差。 虚拟锁相环可以被配置为基于基于温度的定时补偿和误差来生成虚拟时钟。 采样率转换器可以被配置为通过内插一系列数字采样数据来校正错误来产生响应于虚拟时钟的经校正的数字采样数据序列。

公开(公告)号：US20150341038A1

公开(公告)日：2015-11-26

申请号：US14679345

申请日：2015-04-06

Applicant: SanDisk Technologies, Inc.

Inventor： Deepak Pancholi ,  Bhavin Odedara

IPC: H03L1/02 ,  H03B5/12

CPC classification number: H03L1/022 ,  H03B5/04 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/124 ,  H03L1/02 ,  H03L1/026 ,  H03L1/04

Abstract: A method and device for calibrating an oscillator and a temperature sensor in an electronic device are provided. A same temperature cycle, which includes at least two distinct temperatures, may be used to obtain data to calibrate both the oscillator and the temperature sensor. One of the distinct temperatures may comprise an ambient temperature, and a second distinct temperature may comprise a heated temperature greater than the ambient temperature. The electronic device (or a calibration device separate from the electronic device) may receive the readings from the oscillator and the temperature sensor at the two distinct temperatures in the same temperature cycle, and may determine an oscillator correction factor and a temperature sensor correction factor.

Abstract translation: 提供了一种用于校准电子设备中的振荡器和温度传感器的方法和装置。 可以使用包括至少两个不同温度的相同温度循环来获得校准振荡器和温度传感器的数据。 不同温度之一可以包括环境温度，第二不同温度可以包括大于环境温度的加热温度。 电子设备（或与电子设备分离的校准设备）可以在相同温度循环中的两个不同温度下从振荡器和温度传感器接收读数，并且可以确定振荡器校正因子和温度传感器校正因子。

公开(公告)号：US09092726B2

公开(公告)日：2015-07-28

申请号：US13570563

申请日：2012-08-09

Applicant: John Esterline

Inventor： John Esterline

IPC: G06N3/02 ,  H03L1/02 ,  H03L1/04 ,  G06N99/00 ,  G06N3/08

CPC classification number: G06N3/02 ,  G06N3/084 ,  G06N99/005 ,  H03L1/025 ,  H03L1/026 ,  H03L1/04

Abstract: Systems and methods for controlling frequency output of an electronic oscillator to compensate for effects of a parameter 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 a parameter of an electronic oscillator, such as temperature. 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所经历的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，其接收与诸如温度的电子振荡器的参数相对应的一个或多个输入。 计算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：US20150097630A1

公开(公告)日：2015-04-09

申请号：US14502095

申请日：2014-09-30

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Bruno Gailhard ,  Michel Cuenca

IPC: H03L1/02 ,  H03K19/0948 ,  H03B5/04 ,  H03K19/017

CPC classification number: H03L1/026 ,  G05F3/262 ,  G11C7/04 ,  H03B5/04 ,  H03K19/00323 ,  H03K19/00369 ,  H03K19/0948

Abstract: A method includes generation of a first current proportional to absolute temperature and formation of a second current representative of the temperature variation of the threshold voltages of the transistors of the inverter and limited to a fraction of the first current. This fraction is less than one. The inverter is supplied with a supply current equal to the first current minus the limited second current.

Abstract translation: 一种方法包括产生与绝对温度成比例的第一电流和形成表示逆变器的晶体管的阈值电压的温度变化的第二电流，并将其限制为第一电流的一部分。 这个比例小于1。 逆变器的供电电流等于第一电流减去受限的第二电流。

公开(公告)号：US09000856B1

公开(公告)日：2015-04-07

申请号：US14329203

申请日：2014-07-11

Applicant: SanDisk Technologies Inc.

Inventor： Deepak Pancholi ,  Bhavin Odedara

IPC: H03L1/02 ,  H03B5/12 ,  H03L1/04

CPC classification number: H03L1/022 ,  H03B5/04 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/124 ,  H03L1/02 ,  H03L1/026 ,  H03L1/04

Abstract: A method and device for calibrating an oscillator and a temperature sensor in an electronic device are provided. A same temperature cycle, which includes at least two distinct temperatures, may be used to obtain data to calibrate both the oscillator and the temperature sensor. One of the distinct temperatures may comprise an ambient temperature, and a second distinct temperature may comprise a heated temperature greater than the ambient temperature. The electronic device (or a calibration device separate from the electronic device) may receive the readings from the oscillator and the temperature sensor at the two distinct temperatures in the same temperature cycle, and may determine an oscillator correction factor and a temperature sensor correction factor.

Abstract translation: 提供了一种用于校准电子设备中的振荡器和温度传感器的方法和装置。 可以使用包括至少两个不同温度的相同温度循环来获得校准振荡器和温度传感器的数据。 不同温度之一可以包括环境温度，第二不同温度可以包括大于环境温度的加热温度。 电子设备（或与电子设备分离的校准设备）可以在相同温度循环中的两个不同温度下从振荡器和温度传感器接收读数，并且可以确定振荡器校正因子和温度传感器校正因子。

公开(公告)号：US20150052378A1

公开(公告)日：2015-02-19

申请号：US14061719

申请日：2013-10-23

Applicant: PHISON ELECTRONICS CORP.

Inventor： Wei-Yung Chen

IPC: G06F1/06 ,  G06F12/02 ,  G05D23/19

CPC classification number: G06F12/0246 ,  G06F1/06 ,  G06F13/4072 ,  G06F2213/3804 ,  H03L1/022 ,  H03L1/026 ,  H03L7/087 ,  H03L7/22 ,  H04L7/0004 ,  H04L7/0331

Abstract: A connecting interface unit and a memory storage device without a crystal oscillator are provided and include a frequency detector, a phase detector, an oscillator, a sampling circuit and a transmitter circuit. The frequency detector and the phase detector respectively detect frequency difference and phase difference between an input signal from a host system and a reference signal to generate a frequency signal and a phase signal. The frequency signal and the phase signal that have passed through a filter are transmitted to the oscillator to generate the reference signal for generating a clock signal. The sampling circuit generates an input data signal according to the reference signal. The transmitter circuit modulates an output data signal according to the clock signal to generate and transmit an output signal to the host system. Accordingly, the connecting interface unit conforms to the specification of a transmission stand.

Abstract translation: 提供了连接接口单元和没有晶体振荡器的存储器，并且包括频率检测器，相位检测器，振荡器，采样电路和发射器电路。 频率检测器和相位检测器分别检测来自主机系统的输入信号与参考信号之间的频差和相位差，以产生频率信号和相位信号。 已经通过滤波器的频率信号和相位信号被发送到振荡器以产生用于产生时钟信号的参考信号。 采样电路根据参考信号产生输入数据信号。 发射机电路根据时钟信号对输出数据信号进行调制，以产生并向主机系统发送输出信号。 因此，连接接口单元符合变速器架的规格。

公开(公告)号：US20140314070A1

公开(公告)日：2014-10-23

申请号：US14319769

申请日：2014-06-30

Applicant: MAXLINEAR, INC.

Inventor： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

IPC: H04W56/00 ,  G06F1/12

CPC classification number: H04W56/001 ,  G01S19/14 ,  G01S19/235 ,  G06F1/12 ,  H03L1/02 ,  H03L1/026

Abstract: Methods and systems for precise temperature and timebase PPM error estimation using multiple timebases may comprise in an electronic device comprising a plurality of timebases and measuring a temperature corresponding to the timebases. Frequencies of the timebases at the measured temperature may be compared to determine differential error functions for the timebases. A fine reading of the temperature corresponding to the timebases may be generated based, at least in part, on the measured temperature and the determined differential error functions for the timebases. The timebases may be calibrated utilizing the generated fine reading of the temperature. The timebases may comprise different order temperature dependencies. Models of temperature dependencies of each of the timebases based may be updated, at least in part, on the fine reading of the temperature. A global navigation satellite system (GNSS) clock signal may be periodically utilized to improve the accuracy of the calibration of the timebases.

Abstract translation: 用于精确温度和时基的方法和系统使用多个时基的PPM误差估计可以包括在包括多个时基并且测量对应于时基的温度的电子设备中。 可以比较测量温度下时基的频率，以确定时基的差分误差函数。 至少部分地基于所测量的温度和确定的时间基差分误差函数来生成对应于时间基的温度的精细读数。 可以利用生成的温度读数来校准时基。 时间基可以包括不同的顺序温度依赖性。 每个基于时间基的温度依赖性的模型可以至少部分地基于对温度的精细读取来更新。 周期性地使用全球导航卫星系统（GNSS）时钟信号来提高时基的校准精度。

公开(公告)号：US20140270033A1

公开(公告)日：2014-09-18

申请号：US14200456

申请日：2014-03-07

Applicant: Microchip Technology Incorporated

Inventor： Patrick Kelly Richards

IPC: H04L7/00

CPC classification number: H04L7/0037 ,  G06F1/12 ,  G06F13/4295 ,  H03L1/026 ,  H03L7/06

Abstract: An integrated circuit device may have an internal oscillator for generating a system clock, a trimming logic with a trimming register for adjusting an oscillation frequency of the internal oscillator; a serial data receiver, wherein a serial data stream includes a synchronization signal. The synchronization signal is operable to indicate that the system clock correct, too fast or too slow. The device may further have a circuit for decoding the synchronization signal operable to re-adjust a value stored in the trimming register upon evaluation of the synchronization signal.

Abstract translation: 集成电路装置可以具有用于产生系统时钟的内部振荡器，具有用于调整内部振荡器的振荡频率的微调寄存器的微调逻辑; 串行数据接收器，其中串行数据流包括同步信号。 同步信号可操作以指示系统时钟正确，太快或太慢。 该装置还可以具有用于对同步信号进行解码的电路，其可用于在评估同步信号时重新调整存储在修整寄存器中的值。

公开(公告)号：US08717114B2

公开(公告)日：2014-05-06

申请号：US13022983

申请日：2011-02-08

Applicant: Jody Greenberg ,  Sehat Sutardja

Inventor： Jody Greenberg ,  Sehat Sutardja

IPC: H03L1/02

CPC classification number: H03L1/022 ,  H03B5/02 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2200/0088 ,  H03L1/026

Abstract: Circuits, methods, apparatus, and code that provide low-noise and high-resolution electronic circuit tuning. An exemplary embodiment of the present invention adjusts a capacitance value by pulse-width modulating a control voltage for a switch in series with a capacitor. The pulse-width-modulated control signal can be adjusted using entry values found in a lookup table, by using analog or digital control signals, or by using other appropriate methods. The capacitance value tunes a frequency response or characteristic of an electronic circuit. The response can be made to be insensitive to conditions such as temperature, power supply voltage, or processing.

Abstract translation: 提供低噪声和高分辨率电子电路调谐的电路，方法，设备和代码。 本发明的示例性实施例通过对与电容器串联的开关的控制电压进行脉宽调制来调整电容值。 脉冲宽度调制控制信号可以通过使用模拟或数字控制信号或使用其他适当方法在查找表中找到的条目值进行调整。 电容值调节电子电路的频率响应或特性。 可以对温度，电源电压或处理等条件不敏感。