Oscillator device
    51.
    发明授权
    Oscillator device 有权
    振荡器装置

    公开(公告)号:US09444475B2

    公开(公告)日:2016-09-13

    申请号:US14884331

    申请日:2015-10-15

    Inventor: Xiongchuan Huang

    Abstract: An oscillator device comprises an oscillation circuit configured to generate and provide an oscillating signal. A first biasing circuit is configured to derive a bias current signal in accordance with a control signal and apply the bias current signal to the oscillation circuit to control the amplitude level of the oscillating signal. A reference generating circuit is configured to generate a reference voltage signal and comprises a second biasing circuit configured to derive a reference bias current signal in accordance with the control signal. A comparison circuit is configured to determine an error signal by comparing a voltage signal at an output of the first biasing circuit with the reference voltage signal observed at an output of the second biasing circuit. A controller is configured to determine the control signal related to the error signal and provide the control signal to the first biasing circuit and the second biasing circuit.

    Abstract translation: 振荡器装置包括:振荡电路,被配置为产生并提供振荡信号。 第一偏置电路被配置为根据控制信号导出偏置电流信号,并将偏置电流信号施加到振荡电路以控制振荡信号的幅度电平。 参考产生电路被配置为产生参考电压信号,并且包括被配置为根据控制信号导出参考偏置电流信号的第二偏置电路。 比较电路被配置为通过将第一偏置电路的输出处的电压信号与在第二偏置电路的输出处观察到的参考电压信号进行比较来确定误差信号。 控制器被配置为确定与误差信号相关的控制信号,并将控制信号提供给第一偏置电路和第二偏置电路。

    Circuit and Method for Comparator Offset Error Detection and Correction in an ADC
    52.
    发明申请
    Circuit and Method for Comparator Offset Error Detection and Correction in an ADC 有权
    ADC中比较器偏移误差检测和校正的电路和方法

    公开(公告)号:US20160248435A1

    公开(公告)日:2016-08-25

    申请号:US15048516

    申请日:2016-02-19

    Inventor: Pieter Harpe

    CPC classification number: H03M1/1033 H03M1/1019 H03M1/466

    Abstract: A method includes sampling an input voltage signal applied to an ADC, comparing the sampled input voltage signal with an output signal of a feedback DAC, and determining in a search logic block a digital code representation for the comparison result. The method may also include performing a calibration by: performing an additional cycle, wherein a last comparison carried out for determining a least significant bit of the digital code representation is repeated with a second comparator resolution mode different from a first comparator resolution mode, so obtaining an additional comparison; determining from a difference between results of the additional comparison and the last comparison a sign of a comparator offset error between the comparator resolution modes; and tuning, in accordance with a sign of the comparator offset error, a programmable capacitor connected at an input of the comparator, thereby inducing a voltage step to counteract the comparator offset error.

    Abstract translation: 一种方法包括对施加到ADC的输入电压信号进行采样,将采样的输入电压信号与反馈DAC的输出信号进行比较,以及在搜索逻辑块中确定用于比较结果的数字码表示。 该方法还可以包括通过执行附加周期执行校准,其中用不同于第一比较器分辨率模式的第二比较器分辨率模式重复执行用于确定数字码表示的最低有效位的最后比较,从而获得 一个额外的比较; 根据比较器分辨率模式之间的比较器偏移误差的符号来确定附加比较的结果与最后的比较之间的差异; 并且根据比较器偏移误差的符号调整在比较器的输入处连接的可编程电容器,从而引起电压步骤来抵消比较器偏移误差。

    AMORPHOUS THIN FILM FOR SENSING
    54.
    发明申请
    AMORPHOUS THIN FILM FOR SENSING 审中-公开
    用于感应的非晶薄膜

    公开(公告)号:US20160033450A1

    公开(公告)日:2016-02-04

    申请号:US14818216

    申请日:2015-08-04

    CPC classification number: G01N27/4148 G01N27/4146

    Abstract: An apparatus and method for low-power sensing, for example, sensing of chemical or biochemical analytes in a gas or liquid phase are disclosed. One aspect relates to the use of a thin continuous film without grain boundaries as a sensing layer in devices for sensing a predetermined analyte and to low power devices having such sensing layer. The sensing layer has a surface exposed to the analyte. The electrical impedance of the sensing layer changes upon adsorption of the predetermined analyte on the exposed surface of the sensing layer. The sensing layer may have a thickness in the range between about 1 nm and 100 nm, such as between about 1 nm and 30 nm. The sensing layer may be an amorphous layer.

    Abstract translation: 公开了用于低功率感测的装置和方法,例如在气相或液相中感测化学或生化分析物。 一个方面涉及在没有晶界的薄连续膜作为用于感测预定分析物的装置中的感测层和具有这种感测层的低功率装置的使用。 感测层具有暴露于分析物的表面。 感测层的电阻抗在预定分析物在感测层的暴露表面上吸附时改变。 感测层的厚度可以在约1nm至100nm之间,例如约1nm至30nm之间的范围内。 感测层可以是非晶层。

    Method for system scenario based design of dynamic embedded systems
    55.
    发明授权
    Method for system scenario based design of dynamic embedded systems 有权
    基于动态嵌入式系统的系统场景设计方法

    公开(公告)号:US09244701B2

    公开(公告)日:2016-01-26

    申请号:US13940247

    申请日:2013-07-11

    CPC classification number: G06F9/44505 G06F17/5045

    Abstract: Methods are disclosed for system scenario-based design for an embedded platform whereon a dynamic application is implemented. The application meets at least one guaranteed constraint. Temporal correlations are assumed in the behavior of internal data variables used in the application, with the internal data variables representing parameters used for executing a portion of the application. An example method includes determining a distribution over time of an N-dimensional cost function, with N an integer number N≧1, corresponding to the implementation on the platform for a set of combinations of the internal data variables. The method also includes partitioning an N-dimensional cost space in at least two bounded regions, each bounded region containing cost combinations corresponding to combinations of values of the internal data variables of the set that have similar cost and frequency of occurrence, whereby one bounded region is provided for rarely occurring cost combinations.

    Abstract translation: 对于实现动态应用的嵌入式平台,公开了基于系统场景的设计的方法。 应用程序满足至少一个保证约束。 在应用程序中使用的内部数据变量的行为假定时间相关性,内部数据变量表示用于执行应用程序的一部分的参数。 一个示例性方法包括确定N维成本函数的分布,N为整数N≥1,对应于平台上对于内部数据变量的组合的集合的实现。 该方法还包括在至少两个有界区域中分割N维成本空间,每个有界区域包含对应于具有类似成本和发生频率的集合的内部数据变量的值的组合的成本组合,由此一个有界区域 是为很少出现的成本组合提供的。

    Harmonics Cancellation Circuit for a Power Amplifier
    56.
    发明申请
    Harmonics Cancellation Circuit for a Power Amplifier 有权
    功率放大器谐波消除电路

    公开(公告)号:US20150162878A1

    公开(公告)日:2015-06-11

    申请号:US14566505

    申请日:2014-12-10

    Inventor: Ao Ba

    CPC classification number: H03F1/0233 H03F3/217 H03F2200/165 H03F2200/451

    Abstract: The present disclosure relates to a circuit that includes an input port for applying a sinusoidal input signal, and a first buffering means for converting the sinusoidal input signal into a square wave signal. A DC level of the square wave signal may be defined by an adjustable threshold voltage level. The circuit also includes an output port for outputting the square wave signal to a power amplifier. Further, the circuit includes a feedback loop having a low pass filtering means arranged for filtering the square wave signal and comparing means arranged for comparing a DC level of a filtered signal received from the low pass filtering means with a pre-set reference level. The reference level may be selected for cancelling a given harmonic component. The comparing means is further arranged for outputting to the first buffering means a correction signal for adjusting the threshold voltage level of the first buffering means.

    Abstract translation: 本公开涉及包括用于施加正弦输入信号的输入端口的电路和用于将正弦输入信号转换为方波信号的第一缓冲装置。 方波信号的直流电平可以由可调节的阈值电压电平定义。 该电路还包括用于将方波信号输出到功率放大器的输出端口。 此外,该电路包括一个反馈环路,该反馈回路具有布置成滤波方波信号的低通滤波装置,以及比较装置,用于将从低通滤波装置接收的经滤波的信号的直流电平与预置基准电平进行比较。 可以选择参考电平以取消给定的谐波分量。 所述比较装置还被布置成用于向所述第一缓冲装置输出用于调整所述第一缓冲装置的阈值电压电平的校正信号。

    VIBRATION POWER GENERATOR
    57.
    发明申请
    VIBRATION POWER GENERATOR 有权
    振动发电机

    公开(公告)号:US20140111061A1

    公开(公告)日:2014-04-24

    申请号:US14060073

    申请日:2013-10-22

    CPC classification number: H02N1/08

    Abstract: A vibration power generator comprises: a fixed substrate; a vibrating body having a surface opposed to the fixed substrate, the vibrating body being vibratable to the fixed substrate; electret electrodes aligned in a vibration direction on one of the surface of the fixed substrate and the surface of the vibrating body; and first fixed electrodes and second fixed electrodes alternately aligned in the vibration direction on the other thereof, wherein when the vibrating body is at a resting position, each of the electret electrodes overlaps with both electrodes of a corresponding fixed electrode pair, the corresponding fixed electrode pair being one of the first fixed electrodes and one of the second fixed electrodes that are opposed to the electret electrode, and when the vibrating body is not at a resting position, each of the electret electrodes always overlaps with at least one electrode of the corresponding fixed electrode pair.

    Abstract translation: 振动发电机包括:固定基板; 具有与固定基板相对的表面的振动体,所述振动体可振动到所述固定基板; 驻极体电极在固定基板的表面和振动体的表面之一上沿振动方向排列; 并且第一固定电极和第二固定电极在振动方向上交替排列,另一方面,当振动体处于静止位置时,每个驻极体电极与对应的固定电极对的两个电极重叠,相应的固定电极 对是作为与驻极体电极相对的第一固定电极和第二固定电极之一,并且当振动体不处于静止位置时,每个驻极体电极总是与相应的电极的至少一个电极重叠 固定电极对。

    Method for System Scenario Based Design of Dynamic Embedded Systems
    58.
    发明申请
    Method for System Scenario Based Design of Dynamic Embedded Systems 有权
    动态嵌入式系统的系统场景设计方法

    公开(公告)号:US20140019739A1

    公开(公告)日:2014-01-16

    申请号:US13940247

    申请日:2013-07-11

    CPC classification number: G06F9/44505 G06F17/5045

    Abstract: Methods are disclosed for system scenario-based design for an embedded platform whereon a dynamic application is implemented. The application meets at least one guaranteed constraint. Temporal correlations are assumed in the behaviour of internal data variables used in the application, with the internal data variables representing parameters used for executing a portion of the application. An example method includes determining a distribution over time of an N-dimensional cost function, with N an integer number N≧1, corresponding to the implementation on the platform for a set of combinations of the internal data variables. The method also includes partitioning an N-dimensional cost space in at least two bounded regions, each bounded region containing cost combinations corresponding to combinations of values of the internal data variables of the set that have similar cost and frequency of occurrence, whereby one bounded region is provided for rarely occurring cost combinations.

    Abstract translation: 对于实现动态应用的嵌入式平台,公开了基于系统场景的设计的方法。 应用程序满足至少一个保证约束。 在应用程序中使用的内部数据变量的行为假定时间相关性,内部数据变量表示用于执行应用程序的一部分的参数。 一个示例性方法包括确定N维成本函数的分布,其中N是整数N≥1,对应于平台上对于内部数据变量的组合的集合的实现。 该方法还包括在至少两个有界区域中分割N维成本空间,每个有界区域包含对应于具有类似成本和发生频率的集合的内部数据变量的值的组合的成本组合,由此一个有界区域 是为很少出现的成本组合提供的。

    SENSOR FOR SENSING THE PRESENCE OF AT LEAST ONE FLUIDUM
    59.
    发明申请
    SENSOR FOR SENSING THE PRESENCE OF AT LEAST ONE FLUIDUM 有权
    传感器用于感测至少一个流体的存在

    公开(公告)号:US20130334061A1

    公开(公告)日:2013-12-19

    申请号:US13909937

    申请日:2013-06-04

    CPC classification number: G01N27/4146 G01N27/4143

    Abstract: A Sensor for sensing the presence of at least one fluidum in a space adjoining the sensor is disclosed. In one aspect, the sensor has a two-dimensional electron gas (2DEG) layer stack, a gate electrode overlaying at least part of the 2DEG layer stack for electrostatically controlling electron density of a 2DEG in the 2DEG layer stack and a source and a drain electrode contacting the 2DEG layer stack for electrically contacting the 2DEG, wherein a detection opening is provided in between the gate electrode and the 2DEG layer stack and wherein the detection opening communicates with the space through a detection opening inlet such that molecules of the fluidum can move from the adjoining space through the detection opening inlet into the detection opening where they can measurably alter a electric characteristic of the 2DEG.

    Abstract translation: 公开了一种用于感测在邻近传感器的空间中存在至少一个流体的传感器。 在一个方面,传感器具有二维电子气(2DEG)层堆叠,覆盖至少部分2DEG层堆叠的栅电极,用于静电控制2DEG层堆叠中的2DEG的电子密度,以及源极和漏极 电极与2DEG层堆叠接触以电接触2DEG,其中检测开口设置在栅电极和2DEG层堆之间,并且其中检测开口通过检测开口入口与空间连通,使得流体的分子可以移动 从相邻的空间通过检测开口入口进入检测开口,在那里它们可以可测量地改变2DEG的电特性。

    STIMULATOR DEVICE FOR PROVIDING A STIMULATION SIGNAL, A SYSTEM FOR PROVIDING TEMPORAL INTERFERENCE STIMULATION, AND A METHOD FOR MONITORING A STIMULATION SIGNAL

    公开(公告)号:US20250144411A1

    公开(公告)日:2025-05-08

    申请号:US18931153

    申请日:2024-10-30

    Abstract: A stimulator device for providing a stimulation signal comprises: a stimulation signal generating unit configured to generate a stimulation current signal and provide the stimulation current signal to an output of the stimulation signal generating unit, wherein the stimulation current signal comprises a sinusoidal-like waveform; and an impedance monitoring unit connected to the output of the stimulation signal generating unit, wherein the impedance monitoring unit is configured to, while the stimulation current signal is provided on the output of the stimulation signal generating unit, determine an extreme voltage at an extreme point of a voltage signal at the output and a phase delay between the voltage signal and the stimulation current signal for determining information of an impedance relating to an interface between an electrode, connected to the output, and tissue.

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