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1. 发明公开

EP3339885A1 LASERDISTANZMESSMODUL MIT INL-FEHLERKOMPENSATION 审中-公开
公开(公告)号：EP3339885A1
公开(公告)日：2018-06-27
申请号：EP16205847.3
申请日：2016-12-21
申请人： Hexagon Technology Center GmbH
发明人： BESTLER, Simon , WOHLGENANNT, Rainer , HINDERLING, Jürg
IPC分类号： G01S7/486 , H03M1/12 , H03M1/14 , H03M1/10 , G01S17/10
CPC分类号： G01S7/4861 , G01S7/497 , G01S17/10 , H03M1/0641 , H03M1/1033 , H03M1/1042 , H03M1/121 , H03M1/14
摘要： Die vorliegende Erfindung betrifft eine Distanzmessmethode und ein elektronisches Laserdistanzmessmodul, insbesondere zur Verwendung in einem Distanzmessgerät, im Speziellen ausgebildet als Lasertracker, Tachymeter, Laserscanner, oder Profiler, zur schnellen Signalerfassung mit einem Analog-Digital-Wandler, wobei eine Kompensation einer Integralen Nichtlinearität des Analog-Digital-Wandlers erfolgt.

2. 发明公开

EP2719081A1 MODIFIED DYNAMIC ELEMENT MATCHING FOR REDUCED LATENCY IN A PIPELINE ANALOG TO DIGITAL CONVERTER 有权
标题翻译：修改的动态元件匹配用于在管道中的模拟数字转换器减少延迟
公开(公告)号：EP2719081A1
公开(公告)日：2014-04-16
申请号：EP12731225.4
申请日：2012-06-07
申请人： Microchip Technology Incorporated
发明人： MEACHAM, Daniel , PANIGADA, Andrea , GRILO, Jorge
IPC分类号： H03M1/06
CPC分类号： H03M1/0673 , H03M1/0641 , H03M1/164
摘要： A circuit in an analog-to-digital converter, ADC, includes an amplifier (520) configured to receive an output of a backend ADC (512); a harmonic distortion correction circuit, HDC (522), coupled to the amplifier (520) and configured to correct distortion components due to the residue amplifier (506) present in a digital signal from the back-end ADC (512), the HDC circuit (522) providing an output to an adder (530), the adder (530) receiving a coarse digital output from a coarse ADC (502); and a DAC noise cancellation circuit, DNC (526), configured to provide an output to the adder (530), wherein the DNC circuit (526) is configured to correct distortion components due to the DAC (504) present in the digital signal from the backend ADC (512); wherein the output of the adder (530) is an ADC digital output and wherein the ADC digital output forms an input (523) to the HDC and the DNC.
摘要翻译：在模拟到数字转换器（ADC）包括配置为接收至少一个后端DAC的输出放大器的电路; 谐波失真校正电路（HDC）耦合到所述放大器，并且被配置来校正失真分量由于存在于从后端ADC的数字信号残余放大器中，HDC电路在输出端提供对在加法器中，加法器接收一个粗数字输出从粗ADC; 和DAC噪声消除电路（DNC）被配置为提供到输出到加法器，worin的DNC电路被配置为校正由于DAC存在于从后端ADC的数字信号中的失真分量; worin加法器的输出是一个ADC数字输出和worin输入到HDC和DNC的ADC数字输出的形式。

3. 发明公开

EP2371122A4 DITHERING TECHNIQUES TO REDUCE MISMATCH IN MULTI-CHANNEL IMAGING SYSTEMS 失效
标题翻译：抖动过程用于多通道成像系统降低了产生差异
公开(公告)号：EP2371122A4
公开(公告)日：2013-01-02
申请号：EP09832591
申请日：2009-12-11
申请人： ANALOG DEVICES INC
发明人： KAPUSTA RONALD A
IPC分类号： H04N5/228
CPC分类号： H04N5/3742 , G06T1/00 , H03M1/0641 , H03M1/0682 , H03M1/12 , H04N5/3653

4. 发明授权

EP1056208B1 Dispositif compensateur de la non-linéarité d'un convertisseur analogue-numérique 有权
标题翻译：用于A / D转换器的非线性的补偿的装置
公开(公告)号：EP1056208B1
公开(公告)日：2005-09-21
申请号：EP00401337.1
申请日：2000-05-16
申请人： Thales
发明人： Berranger, Robert, Thomsom-CSF P.I.Dépt. Brevets , De Gouy, Jean-Luc, Thomsom-CSF P.I.Dépt. Brevets
IPC分类号： H03M1/06
CPC分类号： H03M1/0641 , H03M1/12

5. 发明授权

EP0550990B1 Combined and simplified multiplexing with dithered analog to digital converter 失效
标题翻译：合并，并在与抖动模拟 - 数字转换器连接简化复用
公开(公告)号：EP0550990B1
公开(公告)日：1997-03-12
申请号：EP92311563.8
申请日：1992-12-17
申请人： Hewlett-Packard Company
发明人： Hiller, Donald R.
IPC分类号： H03M1/06
CPC分类号： H03M1/0641 , H03H21/0012 , H03M1/0604 , H03M1/1215 , H03M1/144 , H03M1/201

6. 发明公开

EP0616433A1 Statistically based continuous autocalibration method and apparatus 失效
标题翻译： Auf die Statistik basiertes kontinueierliches Autokalibrierungsverfahren und-gerät。
公开(公告)号：EP0616433A1
公开(公告)日：1994-09-21
申请号：EP94201105.7
申请日：1990-11-23
申请人： HEWLETT-PACKARD COMPANY
发明人： Hilton, Howard E.
IPC分类号： H03M1/10 , G12B13/00
CPC分类号： H03M1/0641 , G12B13/00 , H03M1/167
摘要： A method for compensating a sampled data process F by removing deviations therefrom to make it more nearly ideal, said process being ideally represented as:

F(X n ) = Y n

where X n is an input and Y n is a scaler output corresponding thereto;
said process actually including one or more process parameters that cause the actual process to deviate from ideal so that the actual process is represented as:

F(X n ,P n ) = Y n '

where X n is the input, P n is a vector representing the parameters for the corresponding sample, and Y n ' is the output of the actual process corresponding to (X n ,P n );
the process being such that:

F(X n ) = F(X n ,P)

where P is a fixed vector representing ideal process parameters;
the method comprising the steps:
providing a random vector Z n ;
performing an operation C on (X n ,Z n ) to yield an output X n ';
performing the operation F on (X n ',P n ) to yield an output W n ';
performing an operation H on (X n ,Z n ) to yield a vector output Z n '; and
performing an operation D on (W n ',Z n ') to yield an output W n ;
calculating the parameter vector P n + 1 for the next sample using the formula:

P n + 1 = P n - (W n ·Z n ')/K

where K is a smoothing constant;
wherein:
operations C, H and D are chosen such that:

W n = Y n = F(X n ,P) = D(F(C(X n ,Z n ),P),H(X n ,Z n ))

and:
the sign of each element of the expected value of [W n Z n '] is the same as the sign of the corresponding element of the expected value of [P n -P].
摘要翻译：一种用于通过从其中去除偏差使其更接近理想来补偿采样数据处理F的方法，所述处理理想地表示为：F（Xn）= Yn，其中Xn是输入，Yn是对应于其的缩放器输出; 所述过程实际上包括使得实际过程偏离理想的一个或多个过程参数，使得实际过程被表示为：F（Xn，Pn）= Yn'，其中Xn是输入，Pn是表示相应的样本，Yn'是对应于（Xn，Pn）的实际过程的输出; 该过程使得：F（Xn）= F（Xn，P>其中P是表示理想过程参数的固定向量;该方法包括以下步骤：提供随机向量Zn;对（Xn，Zn）以产生输出Xn';对（Xn'，Pn）进行运算F out以产生输出Wn';对（Xn，Zn）执行运算H以产生向量输出Zn';以及对 Wn'，Zn'）以产生输出Wn;使用以下公式计算下一个样本的参数向量Pn + 1：Pn + 1 = Pn-（Wn.Zn'）/ K其中K是平滑常数;其中：选择操作C，H和D，使得：Wn = Yn = F（Xn，P）= D（F（C（Xn，Zn），P），H（Xn，Zn） [WnZn']的期望值的元素与[Pn-P]的期望值的对应元素的符号相同。

7. 发明公开

EP0430449A3 Method and apparatus for linearizing the output of a digital-to-analog converter 失效
标题翻译：用于线性化数字到模拟转换器的输出的方法和装置
公开(公告)号：EP0430449A3
公开(公告)日：1993-05-12
申请号：EP90312045.9
申请日：1990-11-02
申请人： Hewlett-Packard Company
发明人： Blackham, Raymond C.
IPC分类号： H03M1/66 , H03M1/06
CPC分类号： H03M1/0641 , H03M1/68
摘要： Distortion in a digital-to-analog converter (DAC) is eliminated by adding a digital random number to each sample of the digital signal, converting the sum into analog form, and subtracting from this analog sum the analog counterpart of the digital random number. The result is the analog counterpart to the input digital signal. The conversion of the summed digital signal and the random number into analog form can be performed by two conventional DACs (18,24). For any digital input sample, the output of each DAC is equally likely to contain any of the possible distortion errors produced by that DAC. (An exception is the most significant output bit of the DAC that processes the summed signal, an exception that may be handled by stripping off the most significant bit and applying it to a one-bit DAC (26).) The error signal at the output of each of the two DACs is thus a random sequence (i.e. noise) of DAC distortion errors. The time average of this noise signal is a small offset error which, if desired, can be removed by subsequent processing stages.

8. 发明公开

EP0430599A3 Statistically based continuous autocalibration method and apparatus 失效
标题翻译：基于统计学的连续自动化方法和装置
公开(公告)号：EP0430599A3
公开(公告)日：1993-04-14
申请号：EP90312766.0
申请日：1990-11-23
申请人： Hewlett-Packard Company
发明人： Hilton, Howard E.
IPC分类号： H03M1/10
CPC分类号： H03M1/0641 , G12B13/00 , H03M1/167
摘要： Errors in a sampled data process are discerned statistically throughout the process, permitting their efficient removal. An exemplary application is a subranging analog-to-digital converter (ADC) (10), in which errors associated with component digital-to-analog (DAC) current sources (28. 30. 32) are discerned and corrected automatically during the circuit's normal operation. This is achieved by continually introducing a random signal into the process, statistically examining the DAC output signal to discern error terms, and correlating the occurrences of these errors with the values of the random signal applied to the DACs so as to identity the current sources to which the error terms are due. The resulting ADC output signal is compensated to remove the random signal and is further compensated to remove the DAC error terms discerned by this statistical analysis. The effect of any errors that may remain due to imperfect quantification of the DAC error terms is minimized due to their randomization, permitting the removal of these error terms by averaging techniques.

9. 发明公开

EP0430449A2 Method and apparatus for linearizing the output of a digital-to-analog converter 失效
标题翻译： Verfahren undGerätzur Linearisierung des Ausgangs eines Digitalanalogwandlers。
公开(公告)号：EP0430449A2
公开(公告)日：1991-06-05
申请号：EP90312045.9
申请日：1990-11-02
申请人： Hewlett-Packard Company
发明人： Blackham, Raymond C.
IPC分类号： H03M1/66 , H03M1/06
CPC分类号： H03M1/0641 , H03M1/68
摘要： Distortion in a digital-to-analog converter (DAC) is eliminated by adding a digital random number to each sample of the digital signal, converting the sum into analog form, and subtracting from this analog sum the analog counterpart of the digital random number. The result is the analog counterpart to the input digital signal. The conversion of the summed digital signal and the random number into analog form can be performed by two conventional DACs (18,24). For any digital input sample, the output of each DAC is equally likely to contain any of the possible distortion errors produced by that DAC. (An exception is the most significant output bit of the DAC that processes the summed signal, an exception that may be handled by stripping off the most significant bit and applying it to a one-bit DAC (26).) The error signal at the output of each of the two DACs is thus a random sequence (i.e. noise) of DAC distortion errors. The time average of this noise signal is a small offset error which, if desired, can be removed by subsequent processing stages.
摘要翻译：数字模拟转换器（DAC）中的失真通过向数字信号的每个样本添加一个数字随机数来消除，并将和转换成模拟形式，并从该模拟和减去数字随机数的模拟对应数。结果是输入数字信号的模拟对应。将相加的数字信号和随机数转换为模拟形式可以由两个常规DAC（18,24）执行。对于任何数字输入采样，每个DAC的输出同样可能包含该DAC产生的任何可能的失真误差。（DAC处理总和信号的最高有效输出位是一个例外，可以通过剥离最高有效位并将其应用于一位DAC来处理异常（26））。因此，两个DAC中的每一个的输出因此是DAC失真误差的随机序列（即噪声）。该噪声信号的时间平均值是小的偏移误差，如果需要，可以通过后续的处理阶段去除噪声信号。

10. 发明公开

EP0398638A3 Digital-to-analog converter device 失效
标题翻译：数字到模拟转换器设备
公开(公告)号：EP0398638A3
公开(公告)日：1991-05-08
申请号：EP90305211.6
申请日：1990-05-15
申请人： PIONEER ELECTRONIC CORPORATION
发明人： Yoshio, Junichi, c/o Pioneer Electronic Corp. , Suzuki, Masami, c/o Pioneer Electronic Corp. , Tsuchida, Masami, c/o Pioneer Electronic Corp. , Iwai, Kiyoshi, c/o Pioneer Electronic Corp.
IPC分类号： H03M1/08 , H03M1/66 , H03M1/20
CPC分类号： H03M1/0626 , H03M1/0614 , H03M1/0641 , H03M1/66
摘要： A digital-to-analog converter device includes a digital filter (6) for producing a digital signal (Vd) which is applied to an attenuator (16). The attenuator (16) attenuates the digital signal by a level (L DTH ) corresponding to the level of a dither signal (Vg, Vℓ) to be added to the digital signal, and produces an attenuated digital output signal (Vh) having an attenuated level (L ATT ). The dither signal (Vg, Vℓ), which is generated by a dither generator (14, 17), is added to the attenuated digital signal (Vh) by an adder (11). A sum signal (Vi) from the adder (11) is converted by a D/A converter (12) into an analog signal (Vj), from which the dither signal (Vg, Vℓ) is removed by a low-pass filter (8).

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