-
公开(公告)号：US09313057B2
公开(公告)日：2016-04-12
申请号：US12912200
申请日：2010-10-26
Applicant: Ching-Hsiang Chuang , Shao-Ping Hung , Tien-Hsin Ho
Inventor： Ching-Hsiang Chuang , Shao-Ping Hung , Tien-Hsin Ho
CPC classification number: H04L25/065 , G10L25/06 , H03L1/00
Abstract: A method and associated apparatus using delay correlation for determining whether an input signal is a target signal is provided. The method includes sampling the input signal to generate 2N sample values, the sample values having a period N, where N is a positive integer; calculating the 2N sample values to obtain a first value according to a first operation method; calculating the 2N sample values to obtain a second value according to a second operation method; obtaining a determination value according to the first value and the second value; and determining whether the input signal is the target signal according to the determination value and a threshold.
Abstract translation: 提供了一种使用延迟相关来确定输入信号是否是目标信号的方法和相关装置。 该方法包括采样输入信号以产生2N个采样值，采样值具有周期N，其中N是正整数; 根据第一操作方法计算2N个样本值以获得第一值; 根据第二操作方法计算2N个样本值以获得第二值; 根据第一值和第二值获得确定值; 以及根据所述确定值和阈值确定所述输入信号是所述目标信号。
-
公开(公告)号：US09287880B2
公开(公告)日：2016-03-15
申请号：US13988615
申请日：2011-11-10
Applicant: Marko Aleksic , Brian S. Leibowitz
Inventor： Marko Aleksic , Brian S. Leibowitz
CPC classification number: H03L1/00 , H03K3/0315 , H03L7/083 , H03L7/24
Abstract: A variable injection-strength injection-locked oscillator (ILO) is described. The variable injection-strength ILO can output an output clock signal based on an input clock signal. The variable injection-strength ILO can pause, restart, slow down, or speed up the output clock signal synchronously with respect to the input clock signal in response to receiving power mode information. Specifically, the variable injection-strength ILO can be operated under relatively strong injection when the input clock signal is paused, restarted, slowed down, or sped up.
Abstract translation: 描述了可变注射强度注射锁定振荡器（ILO）。 可变注入强度ILO可以基于输入时钟信号输出输出时钟信号。 响应于接收功率模式信息，可变注入强度ILO可以相对于输入时钟信号同步地暂停，重新启动，减慢或加速输出时钟信号。 具体地说，当输入时钟信号被暂停，重新启动，减速或加速时，可变注入强度ILO可以在相对强的注入下操作。
-
公开(公告)号：US09252709B2
公开(公告)日：2016-02-02
申请号：US13882144
申请日：2012-10-19
Applicant: MICRON TECHNOLOGY, INC.
CPC classification number: H03B5/24 , H03B5/04 , H03B9/141 , H03L1/00 , H03L7/0891
Abstract: Apparatuses and methods are disclosed for oscillators that are substantially insensitive to supply voltage variations. In one such example apparatus, a capacitance circuit is configured to be charged and discharged. Charging and discharging circuits are coupled to the capacitance circuit and configured to charge and discharge, respectively, the capacitance circuit by charging and discharging currents responsive to charge and discharge signals. A control circuit is coupled to the charging circuit and the discharging circuit, and is configured to provide the charge and discharge signals responsive to a voltage of the capacitance circuit, and is further configured to provide an oscillation signal responsive to the voltage of the capacitance circuit. The charging current, the discharging current, or both the charging and discharging currents are proportional to a difference between a first reference voltage and a second reference voltage.
-
公开(公告)号：US09240792B2
公开(公告)日：2016-01-19
申请号：US14164939
申请日：2014-01-27
Applicant: Integrated Device Technology, Inc.
IPC: H03B5/12 , H03L1/02 , H03B5/04 , H03L1/00 , H03L7/099 , H03L7/24 , H03L7/00 , H03L7/06 , H03L7/081
CPC classification number: H03L1/02 , H03B5/04 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1253 , H03B5/1265 , H03B2200/0038 , H03B2200/005 , H03B2200/0098 , H03J2200/10 , H03L1/00 , H03L1/026 , H03L7/00 , H03L7/06 , H03L7/0812 , H03L7/099 , H03L7/24
Abstract: A periodic signal generator includes a resonant LC tank circuit that generates a periodic reference signal at a first frequency at a differential output thereof. A temperature-responsive frequency compensation module is electrically coupled to the differential output of the resonant LC tank circuit. This module includes a temperature dependent voltage control module that generates a temperature dependent control voltage and an array of switchable capacitive modules that is electrically coupled to a first node of the differential output of the resonant LC tank circuit and responsive to the temperature dependent control voltage and a plurality of switching coefficients. The array of switchable capacitive modules includes a fixed capacitor having a first terminal electrically coupled to the first node and a voltage-controlled variable capacitor having a first terminal electrically coupled to the first node.
Abstract translation: 周期信号发生器包括谐振LC谐振电路，其在其差分输出处以第一频率产生周期性参考信号。 温度响应频率补偿模块电耦合到谐振LC谐振电路的差分输出。 该模块包括温度依赖性电压控制模块，其产生与温度相关的控制电压，以及阵列的可切换电容模块，其电耦合到谐振LC谐振电路的差分输出的第一节点，并且响应于与温度相关的控制电压和 多个切换系数。 可切换电容性模块的阵列包括具有电耦合到第一节点的第一端子的固定电容器和具有电耦合到第一节点的第一端子的压控可变电容器。
-
公开(公告)号：US09225342B2
公开(公告)日：2015-12-29
申请号：US14228251
申请日：2014-03-28
Applicant: NIHON DEMPA KOGYO CO., LTD.
Inventor： Kazuo Akaike , Kaoru Kobayashi
Abstract: An oscillation device corrects a setting value of an output frequency based on a detection result of an ambient temperature of a crystal unit. The oscillation device includes: an oscillation circuit; a temperature detection portion that detects the ambient temperature and outputs a digital value corresponding to the temperature detection value; an accumulator that accumulates the digital value; a rounding processing portion that performs rounding for the digital value accumulated in the accumulator; a digital filter that receives the digital value obtained from the rounding processing portion and obtains a step response gradually increasing from “0” and converging to a step value; and a correction value obtaining portion that obtains a frequency correction value of the oscillation frequency of the oscillation circuit caused by a difference between the ambient temperature and a reference temperature, wherein the setting value of the output frequency is corrected based on the frequency correction value.
Abstract translation: 振荡装置根据晶体单元的环境温度的检测结果来校正输出频率的设定值。 振荡装置包括：振荡电路; 温度检测部，其检测所述环境温度并输出与所述温度检测值对应的数字值; 累加数字值的累加器; 舍入处理部，对累加在累加器中的数字值进行舍入; 数字滤波器，接收从舍入处理部获得的数字值，并获得从“0”逐渐增加并收敛到阶跃值的阶跃响应; 以及校正值获取部分，其获得由环境温度和基准温度之间的差引起的振荡电路的振荡频率的频率校正值，其中基于频率校正值校正输出频率的设定值。
-
Patent Agency Ranking
公开(公告)号：US09160343B2
公开(公告)日：2015-10-13
申请号：US14079641
申请日：2013-11-14
Applicant: NIHON DEMPA KOGYO CO., LTD.
Inventor： Tomoya Yorita
CPC classification number: H03L1/028 , H03B5/32 , H03B5/36 , H03L1/04 , H03L7/00 , H03L7/07 , H05B1/023
Abstract: A heater device includes a temperature detector, a heater control circuit, a heater, a voltage supply path, and an overheat prevention circuit. The overheat prevention circuit includes a positive-temperature-coefficient thermistor and a pull-up resistor. The positive-temperature-coefficient thermistor is interposed on the voltage supply path in a position for being heated by the heater. The pull-up resistor that includes: one end connected between the heater and the positive-temperature-coefficient thermistor, and another end connected to a direct current power source. The control voltage to be applied to the heater is restricted to a voltage at a connection point between the positive-temperature-coefficient thermistor and the pull-up resistor when the control voltage from the heater control circuit is abnormally decreased.
Abstract translation: 加热器装置包括温度检测器，加热器控制电路，加热器，电压供给路径和过热防止电路。 过热防止电路包括正温度系数热敏电阻和上拉电阻。 正温度系数热敏电阻插入电压供给路径上，被加热器加热的位置。 上拉电阻包括：一端连接在加热器和正温系数热敏电阻之间，另一端连接到直流电源。 当加热器控制电路的控制电压异常降低时，施加到加热器的控制电压被限制在正温系数热敏电阻和上拉电阻之间的连接点处的电压。
-
公开(公告)号：US09054633B2
公开(公告)日：2015-06-09
申请号：US14016178
申请日：2013-09-02
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Yusuke Niki , Daisuke Miyashita
Abstract: A bias current circuit controls an oscillator that generates an oscillation signal of a frequency corresponding to an input current. The circuit includes a part that detects fluctuation of a control current for variably controlling the frequency of the oscillation signal and a part that generates an input current in which a fluctuation component of the control current is canceled using a current for cancelling the detected fluctuation of the control current.
Abstract translation: 偏置电流电路控制产生与输入电流对应的频率的振荡信号的振荡器。 电路包括检测用于可变地控制振荡信号的频率的控制电流的波动的部分和产生使用用于取消检测到的波动的电流的电流来消除控制电流的波动分量的输入电流的部分 控制电流。
-
公开(公告)号：US08981862B2
公开(公告)日：2015-03-17
申请号：US13755130
申请日：2013-01-31
Applicant: QUALCOMM Incorporated
Inventor： Li Liu , Chiewcharn Narathong
CPC classification number: H03B5/1228 , H01L25/00 , H01L2924/0002 , H03B5/04 , H03B5/1209 , H03B5/1243 , H03B2200/0088 , H03L1/00 , H03L7/099 , H01L2924/00
Abstract: A voltage controlled oscillator (VCO) core for cancelling a supply noise is described. The VCO core includes an input node that receives the supply noise. The VCO core also includes a noise path coupled to the input node. The VCO core additionally includes a cancellation path coupled to the input node and the noise path. The cancellation path includes a programmable gain circuit coupled with a first terminal of a varactor. The supply noise passes through the programmable gain circuit to produce a cancellation noise.
Abstract translation: 描述了用于消除电源噪声的压控振荡器（VCO）芯。 VCO核心包括接收电源噪声的输入节点。 VCO核心还包括耦合到输入节点的噪声路径。 VCO核心还包括耦合到输入节点和噪声路径的消除路径。 消除路径包括与变容二极管的第一端子耦合的可编程增益电路。 电源噪声通过可编程增益电路产生消除噪声。
-
公开(公告)号：US08963604B2
公开(公告)日：2015-02-24
申请号：US14246328
申请日：2014-04-07
Applicant: Micron Technology, Inc.
Inventor： Eric Booth , Tyler J. Gomm , Kallol Mazumder , Scott E. Smith , John F. Schreck
Abstract: Circuits, integrated circuits, and methods are disclosed for bimodal disable circuits. In one such example method, a counter is maintained, with the counter indicating a logic level at which an output signal will be disabled during at least a portion of one of a plurality of disable cycles. The logic level indicated by the counter is transitioned. An input signal is provided as the output signal responsive to the enable signal indicating that the output signal is to be enabled, and the output signal is disabled at the logic level indicated by the counter responsive to the enable signal indicating that the output signal is to be disabled.
Abstract translation: 公开了用于双模禁止电路的电路，集成电路和方法。 在一个这样的示例性方法中，维持计数器，其中计数器指示在多个禁用周期中的至少一个的至少一部分期间输出信号将被禁用的逻辑电平。 由计数器指示的逻辑电平转换。 响应于指示输出信号被使能的使能信号，输出信号被提供作为输出信号，并且输出信号在由计数器指示的逻辑电平处被禁用，响应于使能信号，指示输出信号为 被禁用
-
50.发明授权公开(公告)号：US08854145B2
公开(公告)日：2014-10-07
申请号：US13740939
申请日：2013-01-14
Applicant: Broadcom Corporation
Inventor： Yuyu Chang , John Leete , Walid Ahmed , Wei Luo
Abstract: Methods and systems are provided to calibrate an oscillator circuit to reduce frequency pulling as a result of a change in power to a portion of the oscillator circuit. In an embodiment, an oscillator is coupled to a clock buffer circuit and a tuning capacitor configured to tune a frequency of the oscillator to a baseline frequency required for cellular communications. A change in power to the clock buffer circuit initiates a change in an amount of capacitance seen by the oscillator, which negatively impacts the tuning of the oscillator. A register stores a frequency offset caused by the change in power, and the tuning capacitor is adjusted, using the frequency offset, in response to the change in power, such that the total amount of capacitance seen by the oscillator is not changed when the change in power occurs.
Abstract translation: 提供了方法和系统来校准振荡器电路，以减少振荡器电路的一部分功率变化导致的频率拉动。 在一个实施例中，振荡器耦合到时钟缓冲器电路和调谐电容器，其被配置为将振荡器的频率调谐到蜂窝通信所需的基准频率。 时钟缓冲电路的功率变化启动振荡器看到的电容量的变化，这对振荡器的调谐产生负面影响。 寄存器存储由功率变化引起的频率偏移，并且使用频率偏移来调整调谐电容器以响应功率的变化，使得当变化时振荡器所看到的电容量总和没有改变 发生电力。
-
-
-
-
-
-
-
-
-
Search Results
892
records
(took 0.021 seconds)
