Signal conversion
    1.
    发明授权
    Signal conversion 有权
    信号转换

    公开(公告)号:US08674868B2

    公开(公告)日:2014-03-18

    申请号:US13492118

    申请日:2012-06-08

    IPC分类号: H03M1/12

    CPC分类号: H03M1/20

    摘要: An approach to signal conversion adapts the signal conversion process, for example, by adapting or configuring signal conversion circuitry, according to inferred characteristics (e.g., probability distribution of value) of a signal being converted. As an example, an analog-to-digital converter (ADC) may be adapted so that its accuracy varies across the range of possible input signal values in such a way that on average the digital signal provides a higher accuracy than had the accuracy remained fixed. In another example, models (and corresponding inference circuitry) of both an input signal process and of a quantization process are used to improve signal conversion accuracy.

    摘要翻译: 信号转换方法根据被转换信号的推断特性(例如值的概率分布)来适配信号转换过程,例如通过适配或配置信号转换电路。 作为示例,模数转换器(ADC)可以被适配成使得其精度在可能的输入信号值的范围内变化,使得数字信号的平均值提供比准确度保持固定的更高的精度 。 在另一示例中,使用输入信号处理和量化处理两者的模型(和相应的推理电路)来提高信号转换精度。

    SIGNAL CONVERSION
    2.
    发明申请
    SIGNAL CONVERSION 有权
    信号转换

    公开(公告)号:US20120313802A1

    公开(公告)日:2012-12-13

    申请号:US13492118

    申请日:2012-06-08

    IPC分类号: H03M1/12

    CPC分类号: H03M1/20

    摘要: An approach to signal conversion adapts the signal conversion process, for example, by adapting or configuring signal conversion circuitry, according to inferred characteristics (e.g., probability distribution of value) of a signal being converted. As an example, an analog-to-digital converter (ADC) may be adapted so that its accuracy varies across the range of possible input signal values in such a way that on average the digital signal provides a higher accuracy than had the accuracy remained fixed. In another example, models (and corresponding inference circuitry) of both an input signal process and of a quantization process are used to improve signal conversion accuracy.

    摘要翻译: 信号转换方法根据被转换信号的推断特性(例如值的概率分布)来适配信号转换过程,例如通过适配或配置信号转换电路。 作为示例,模数转换器(ADC)可以被适配成使得其精度在可能的输入信号值的范围内变化,使得数字信号的平均值提供比准确度保持固定的更高的精度 。 在另一示例中,使用输入信号处理和量化处理两者的模型(和相应的推理电路)来提高信号转换精度。

    Method and an apparatus for adaptively learning a sparse impulse response of a continuous channel
    3.
    发明申请
    Method and an apparatus for adaptively learning a sparse impulse response of a continuous channel 失效
    用于自适应地学习连续信道的稀疏脉冲响应的方法和装置

    公开(公告)号:US20110096811A1

    公开(公告)日:2011-04-28

    申请号:US12912524

    申请日:2010-10-26

    IPC分类号: H04B1/00

    摘要: A method for adaptively learning a sparse impulse response (100) of a continuous channel to which an input signal (x (t)) is applied and which delivers an output signal (y(t)), comprising the following steps: low-pass filtering the input signal and the output signal and obtain a filtered input signal (xF(t)) and a filtered output signal (yF(t)) sampling the filtered input signal and the filtered output signal with a sampling rate below the Nyquist rate and obtaining a sampled input signal (xS(t)) and a sampled output signal (yS(t)) retrieving from the sampled input signal (xS(t)) and the sampled output signal (yS(t)) an estimate (400) of the sparse impulse response (100) of the continuous channel. This method can be applied in CDMA channels, in acoustic room context, in ultra-wideband ranging and line echo cancellation problems, in transmission systems for optical fibres, in body scan devices, to name a few.

    摘要翻译: 一种用于自适应地学习施加输入信号(x(t))的连续信道的稀疏脉冲响应(100)并且传送输出信号(y(t))的方法,包括以下步骤:低通 对输入信号和输出信号进行滤波,并获得滤波后的输入信号(xF(t))和滤波后的输出信号(yF(t)),以低于奈奎斯特速率的采样速率对经过滤波的输入信号和滤波后的输出信号进行采样; 从采样输入信号(xS(t))和采样输出信号(yS(t))获取采样输入信号(xS(t))和采样输出信号(yS(t))估计值(400) 的连续信道的稀疏脉冲响应(100)。 这种方法可以应用于CDMA信道,在声学室上下文中,在超宽带测距和线路回波消除问题中,在用于光纤的传输系统中,在身体扫描设备中。

    Fast set material proportioner
    4.
    发明申请
    Fast set material proportioner 有权
    快速定料配料

    公开(公告)号:US20060071022A1

    公开(公告)日:2006-04-06

    申请号:US10533329

    申请日:2003-10-30

    IPC分类号: B67D5/52

    CPC分类号: G05D11/132

    摘要: The proportioner (10) has a variable speed controlled DC motor (12) having a gearbox (14) and crankshaft (16) at either end which are connected to reciprocating piston pumps (18). The outputs (18a) of the two pumps (18) are fed to a manifold (22) where the pressure of each output is measured. The user sets a setpoint pressure (e.g. 1000 psi) and the controller (26) then compares the pressures of the two components and controls the higher of the two relative to the setpoint. Ratio assurance is monitored by continuing to look at both output pressures. If one side falls below a predetermined percentage of the setpoint (50% in the preferred embodiment), an alarm may be raised or operation stopped.

    摘要翻译: 配比器(10)具有变速控制的直流电动机(12),其在任一端具有连接到往复活塞泵(18)的齿轮箱(14)和曲轴(16)。 两个泵(18)的输出(18a)被馈送到其中测量每个输出的压力的歧管(22)。 用户设定设定点压力(例如1000psi),然后控制器(26)比较两个部件的压力并控制两个相对于设定点的较高者。 通过继续查看输出压力来监控比率保证。 如果一侧低于设定值的预定百分比(在优选实施例中为50%),则可能引起报警或操作停止。

    Method and an apparatus for adaptively learning a sparse impulse response of a continuous channel
    5.
    发明授权
    Method and an apparatus for adaptively learning a sparse impulse response of a continuous channel 失效
    用于自适应地学习连续信道的稀疏脉冲响应的方法和装置

    公开(公告)号:US08451921B2

    公开(公告)日:2013-05-28

    申请号:US12912524

    申请日:2010-10-26

    IPC分类号: H04K1/10 H04L12/66 G11B5/33

    摘要: A method for adaptively learning a sparse impulse response (100) of a continuous channel to which an input signal (x(t)) is applied and which delivers an output signal (y(t)), comprising the following steps: low-pass filtering the input signal and the output signal and obtain a filtered input signal (xF(t)) and a filtered output signal (yF(t)) sampling the filtered input signal and the filtered output signal with a sampling rate below the Nyquist rate and obtaining a sampled input signal (xS(t)) and a sampled output signal (yS(t)) retrieving from the sampled input signal (xS(t)) and the sampled output signal (yS(t)) an estimate (400) of the sparse impulse response (100) of the continuous channel.

    摘要翻译: 一种用于自适应地学习施加输入信号(x(t))的连续信道的稀疏脉冲响应(100)并且传送输出信号(y(t))的方法,包括以下步骤:低通 对输入信号和输出信号进行滤波,并获得滤波后的输入信号(xF(t))和滤波后的输出信号(yF(t)),以低于奈奎斯特速率的采样速率对经过滤波的输入信号和滤波后的输出信号进行采样; 从采样输入信号(xS(t))和采样输出信号(yS(t))获取采样输入信号(xS(t))和采样输出信号(yS(t))估计值(400) 的连续信道的稀疏脉冲响应(100)。