公开(公告)号：US08098742B2

公开(公告)日：2012-01-17

申请号：US12419331

申请日：2009-04-07

Applicant: Leonid Kazakevich ,  Rui Yang

Inventor： Leonid Kazakevich ,  Rui Yang

IPC: H04B14/04

CPC classification number: H03G7/06 ,  H03G3/001 ,  H03M1/1235

Abstract: An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses an analog to digital conversion method that increases the number of effective ADC bits by compressing the baseband input analog signal using a logarithmic circuit. After the compressed analog signal is converted into a digital signal, a digital anti-log process or look-up table (LUT) is used to expand the digital signal back to the original linear scale. The word size of the output of the anti-log process is larger than the input word size due to the nature of the anti-log function. To reduce the word size of the digital signal an open loop normalization technique can be applied.

Abstract translation: 模拟/数字增益控制装置避免了与闭环AGC电路的性质相关的一些要求，并且满足剩余要求，而没有太多困难使用模数转换方法，通过压缩有效ADC位数来增加有效ADC位的数量 基带输入模拟信号使用对数电路。 在将压缩的模拟信号转换为数字信号之后，使用数字反对数处理或查找表（LUT）将数字信号扩展回原始的线性刻度。 由于反日志功能的性质，反日志进程输出的字大小大于输入字大小。 为了减小数字信号的字大小，可以应用开环归一化技术。

公开(公告)号：US20110116580A1

公开(公告)日：2011-05-19

申请号：US13054152

申请日：2008-07-30

Applicant: Stig Lindemann ,  Mads Kolding Nielsen

Inventor： Stig Lindemann ,  Mads Kolding Nielsen

IPC: H04L27/06

CPC classification number: H03M7/50 ,  H03M1/0827 ,  H03M1/1235 ,  H04B10/802

Abstract: A data translation system (100) for performing a non-linear data translation on a digitized AC signal is provided. The non-linear data translation system (100) includes an input for receiving the digitized AC signal, an output for outputting a non-linearly translated signal, and a processing system (104) coupled to the input and to the output. The processing system (104) is configured to receive the digitized AC signal, non-linearly translate the digitized AC signal using a predetermined transfer function to create the non-linearly translated signal, and transfer the non-linearly translated signal to the output.

Abstract translation: 提供一种用于对数字化的AC信号执行非线性数据转换的数据转换系统（100）。 非线性数据转换系统（100）包括用于接收数字化AC信号的输入端，用于输出非线性转换信号的输出端以及耦合到输入端和输出端的处理系​​统（104）。 处理系统（104）被配置为接收数字化的AC信号，使用预定的传递函数非线性地转换数字化的AC信号，以产生非线性转换的信号，并将非线性转换的信号传送到输出端。

公开(公告)号：US07532671B2

公开(公告)日：2009-05-12

申请号：US12135288

申请日：2008-06-09

Applicant: Leonid Kazakevich ,  Rui Yang

Inventor： Leonid Kazakevich ,  Rui Yang

IPC: H04B14/04

CPC classification number: H03G7/06 ,  H03G3/001 ,  H03M1/1235

Abstract: An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses an analog to digital conversion method that increases the number of effective ADC bits by compressing the baseband input analog signal using a logarithmic circuit. After the compressed analog signal is converted into a digital signal, a digital anti-log process or look-up table (LUT) is used to expand the digital signal back to the original linear scale. The word size of the output of the anti-log process is larger than the input word size due to the nature of the anti-log function. To reduce the word size of the digital signal an open loop normalization technique can be applied.

Abstract translation: 模拟/数字增益控制装置避免了与闭环AGC电路的性质相关的一些要求，并且不需要很多困难就可以满足剩余的要求，使用模数转换方法，通过压缩有效的ADC位数来增加有效的ADC位数 基带输入模拟信号使用对数电路。 在将压缩的模拟信号转换为数字信号之后，使用数字反对数处理或查找表（LUT）将数字信号扩展回原始的线性刻度。 由于反日志功能的性质，反日志进程输出的字大小大于输入字大小。 为了减小数字信号的字大小，可以应用开环归一化技术。

公开(公告)号：US20080275663A1

公开(公告)日：2008-11-06

申请号：US11628134

申请日：2005-04-20

Applicant: Theodor Jandewerth

Inventor： Theodor Jandewerth

IPC: G01D3/00

CPC classification number: H03M1/1235

Abstract: In one aspect, a method for automatically establishing value range limits for sampling values is provided wherein the value ranges are associated with code words. A total value range for sampling values is divided into source value ranges. Each source value range is assigned a code word in each case. A number of sampling values that lie in a source value range is determined in respect of sampling values of a sampling interval. A limit of a modified value range is established depending on the determined number. A code word is assigned to the modified value range.

Abstract translation: 一方面，提供了一种用于自动建立采样值的值范围限制的方法，其中所述值范围与代码字相关联。 采样值的总值范围分为源值范围。 在每种情况下，每个源值范围都被分配一个代码字。 关于采样间隔的采样值确定位于源值范围内的多个采样值。 根据确定的数量建立修改值范围的限制。 代码字被分配给修改的值范围。

公开(公告)号：US20080202244A1

公开(公告)日：2008-08-28

申请号：US12104871

申请日：2008-04-17

Applicant: John Michael Cuffe ,  Klaus Peter Busch ,  Scott Allen Herbster

Inventor： John Michael Cuffe ,  Klaus Peter Busch ,  Scott Allen Herbster

IPC: G01N29/34

CPC classification number: G01N29/44 ,  G01N29/36 ,  G01N2291/02854 ,  H03M1/1235

Abstract: The apparatus and method of the present invention provides an ultrasonic object inspection system for measuring the physical properties of a test object comprising a pulse generator for generating and transmitting an electrical pulse signal to a transducer. The transducer receives and converts the electrical pulse signal to an ultrasonic signal, applies the ultrasonic signal to the test object, receives an ultrasonic echo signal from the test object, and converts the ultrasonic echo signal to an electrical echo signal, and transmits the electrical echo signal to a signal processing circuit. The signal processing circuit receives and processes the electrical echo signal and comprises a plurality of signal processing paths. Each of the signal processing paths scales the electrical echo signal to a different degree and comprises a respective analog to digital converter for converting the electrical echo signal to a digital electrical echo signal. The signal processing circuit further comprises a logic circuit for selecting the output of the respective analog to digital converter that provides the digital electrical echo signal having the greatest amplitude without exceeding a predetermined saturation threshold.

Abstract translation: 本发明的装置和方法提供了一种用于测量测试对象的物理特性的超声波物体检测系统，包括用于产生并将电脉冲信号传送到换能器的脉冲发生器。 换能器将电脉冲信号接收并转换为超声信号，将超声波信号施加到被测物体，从被测物体接收超声回波信号，并将超声回波信号转换为电回波信号，并发送电回波 信号到信号处理电路。 信号处理电路接收并处理电回声信号并且包括多个信号处理路径。 每个信号处理路径将电回声信号缩放到不同程度，并且包括相应的模数转换器，用于将电回声信号转换成数字电回声信号。 信号处理电路还包括用于选择提供具有最大幅度的数字电回声信号的相应模数转换器的输出而不超过预定饱和阈值的逻辑电路。

公开(公告)号：US07408492B2

公开(公告)日：2008-08-05

申请号：US11602676

申请日：2006-11-20

Applicant: Xiang Guang Feng ,  Runsheng He

Inventor： Xiang Guang Feng ,  Runsheng He

IPC: H03M3/00

CPC classification number: H03M1/1235

Abstract: Circuitry for providing non-uniform analog-to-digital (“A/D”) signal conversion for wideband signals is provided. The circuitry of the invention is optimized for wideband signals because it does not sacrifice the small-scale resolution of high-probability signal amplitudes while preventing the clipping of low-probability signal amplitudes. The circuitry includes a nonlinear amplifier and an A/D converter that may be uniform or non-uniform. The digital output of the A/D converter may be further processed by circuitry that has an output function that is the inverse of that of the nonlinear amplifier, so as to maintain linear A/D conversion.

Abstract translation: 提供了用于为宽带信号提供不均匀模数（“A / D”）信号转换的电路。 本发明的电路针对宽带信号进行了优化，因为它不会牺牲高概率信号幅度的小规模分辨率，同时防止低概率信号幅度的削波。 电路包括可以是均匀的或不均匀的非线性放大器和A / D转换器。 A / D转换器的数字输出可以由具有与非线性放大器的输出函数相反的输出函数的电路进一步处理，以便保持线性A / D转换。

公开(公告)号：US20080030388A1

公开(公告)日：2008-02-07

申请号：US10554805

申请日：2004-04-30

Applicant: Markus Muck ,  Marc Bernard de Courville ,  Patrick Labbe

Inventor： Markus Muck ,  Marc Bernard de Courville ,  Patrick Labbe

IPC: H03M1/12

CPC classification number: H03M1/1235 ,  H03M1/664

Abstract: A method for analog to digital conversion (ADC) characterised by; applying a non-linear transfer function to an input signal, such that the relation between the quantisation levels of the converter and the input signal vary as a non-linear function of the magnitude of the input signal. The non-linear transfer function is related to an at least approximate measurement of probability density function ‘p(x)’ of said input signal so that larger quantisation bins of the converter correspond to less probable values of the input signal.The relation is iteratively updated by updating quantisation levels.

Abstract translation: 一种用于模数转换（ADC）的方法，其特征在于： 对输入信号应用非线性传递函数，使得转换器的量化电平与输入信号之间的关系作为输入信号幅度的非线性函数而变化。 非线性传递函数与所述输入信号的概率密度函数“p（x）”的至少近似测量相关，使得转换器的较大量化仓对应于输入信号的可能值较小。 通过更新量化水平迭代更新关系。

公开(公告)号：US20070285295A1

公开(公告)日：2007-12-13

申请号：US10591469

申请日：2005-03-03

Applicant: Kazuo Toraichi ,  Kazuki Katagishi ,  Kouji Nakamura ,  Yasuo Morooka

Inventor： Kazuo Toraichi ,  Kazuki Katagishi ,  Kouji Nakamura ,  Yasuo Morooka

IPC: H03F3/45 ,  H03M1/12 ,  H04L29/02

CPC classification number: H03M1/1235 ,  H03M1/661

Abstract: There is provided a new signal processing device that uses functions appropriate to signal properties to acquire high-quality signals. The signal processing device includes a sampling circuit 2 that samples an input signal and outputs a discrete signal, multiple function generators 3 that generate multiple sampling functions with parameters m different from each other, plural inner product operating units 4 for each of the parameters m that take an inner product between the input signal and each of plural sampling functions and output an inner product operating value, and a judging unit 8 that determines parameter m providing a minimum error out of multiple errors composed of differences between the sampling value and inner product operating values output from the multiple inner product operating units and outputs the parameter m signal. The signal processing device outputs a discrete signal composed of a string of the sampling values and the parameter m signal.

Abstract translation: 提供了一种新的信号处理装置，其使用适于信号特性的功能来获取高质量信号。 信号处理装置包括对输入信号进行采样并输出离散信号的采样电路2，生成具有彼此不同的参数m的多个采样函数的多个函数发生器3，对于每个参数m的多个内积运算单元4， 在输入信号和多个采样函数中的每一个之间取内积，并输出内积运算值，以及判断单元8，其确定由采样值和内积运算之间的差构成的多个误差提供最小误差的参数m 从多个内部产品操作单元输出的值并输出参数m信号。 信号处理装置输出由采样值串和参数m信号组成的离散信号。

公开(公告)号：US07271756B2

公开(公告)日：2007-09-18

申请号：US10537670

申请日：2003-11-28

Applicant: Franciscus Paulus Maria Budzelaar

Inventor： Franciscus Paulus Maria Budzelaar

IPC: H03M1/12

CPC classification number: H03M1/188 ,  H03M1/1235 ,  H03M1/367

Abstract: A method, apparatus, and system for converting an input voltage VIN to a digital output. A comparison of VIN with reference voltages in one or more flash-type analog-to-digital (A/D) converters generates the digital output representing VIN. If one A/D converter is used, the A/D converter is non-linear. If more than one A/D converter are used, the A/D converters are each linear.

Abstract translation: 一种用于将输入电压VIN转换为数字输出的方法，装置和系统。 在一个或多个闪存型模拟（A / D）转换器中，VIN与参考电压的比较产生表示VIN的数字输出。 如果使用一个A / D转换器，则A / D转换器是非线性的。 如果使用多个A / D转换器，则A / D转换器各自是线性的。

公开(公告)号：US20070206684A1

公开(公告)日：2007-09-06

申请号：US11800114

申请日：2007-05-03

Applicant: Leonid Kazakevich ,  Rui Yang

Inventor： Leonid Kazakevich ,  Rui Yang

IPC: H04B14/04

CPC classification number: H03G7/06 ,  H03G3/001 ,  H03M1/1235

Abstract: An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses an analog to digital conversion method that increases the number of effective ADC bits by compressing the baseband input analog signal using a logarithmic circuit. After the compressed analog signal is converted into a digital signal, a digital anti-log process or look-up table (LUT) is used to expand the digital signal back to the original linear scale. The word size of the output of the anti-log process is larger than the input word size due to the nature of the anti-log function. To reduce the word size of the digital signal an open loop normalization technique can be applied.

Abstract translation: 模拟/数字增益控制装置避免了与闭环AGC电路的性质相关的一些要求，并且满足剩余要求，而没有太多困难使用模数转换方法，通过压缩有效ADC位数来增加有效ADC位的数量 基带输入模拟信号使用对数电路。 在将压缩的模拟信号转换为数字信号之后，使用数字反对数处理或查找表（LUT）将数字信号扩展回原始的线性刻度。 由于反日志功能的性质，反日志进程输出的字大小大于输入字大小。 为了减小数字信号的字大小，可以应用开环归一化技术。