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    Time-to-digital conversion with analog dithering
    61.
    发明公开
    Time-to-digital conversion with analog dithering 审中-公开
    Zeit-Digital-Umwandlung mit模拟抖动

    公开(公告)号：EP2796945A1

    公开(公告)日：2014-10-29

    申请号：EP13305539.2

    申请日：2013-04-24

    Applicant: Asahi Kasei Microdevices Corporation

    Inventor： Canard, David ,  Delorme, Julien

    IPC: G04F10/00 ,  H03M1/50

    CPC classification number: H03M1/201 ,  G04F10/005 ,  H03L7/085 ,  H03L7/093 ,  H03L7/18

    Abstract: There is described a time-to-digital conversion scheme using an arrangement of delay elements based Time-to-Digital Converter, TDC (20), wherein dithering is built in the digital domain and introduced in the analog domain as a modulation of a supply voltage (TDC-supply) supplying delay elements of the TDC, each having a propagation delay which exhibits a dependency to their supply voltage.

    Abstract translation: 描述了使用基于延迟元件的时间 - 数字转换器TDC（20）的布置的时间 - 数字转换方案，其中抖动内置在数字域中并且作为供应的调制被引入模拟域 电压（TDC供电）提供TDC的延迟元件，每个延迟元件具有表现出对其电源电压的依赖性的传播延迟。

    Combined and simplified multiplexing with dithered analog to digital converter
    64.
    发明公开
    Combined and simplified multiplexing with dithered analog to digital converter 失效
    用抖动模数转换器进行组合和简化多路复用

    公开(公告)号：EP0550990A3

    公开(公告)日：1994-04-27

    申请号：EP92311563.8

    申请日：1992-12-17

    Applicant: Hewlett-Packard Company

    Inventor： Hiller, Donald R.

    IPC: H03M1/06

    CPC classification number: H03M1/0641 ,  H03H21/0012 ,  H03M1/0604 ,  H03M1/1215 ,  H03M1/144 ,  H03M1/201

    Abstract: A circuit (40) for analog-to-digital conversion is disclosed comprising multiplexed ADCs (44, 46). Dithering (16) is introduced (20) into the circuit before conversion and subtracted out (26) of the resulting digital output stream. Gain control feedback loops (50, 51, 52, 54) are employed to eliminate non-unity gain error of the dither signal and multiplexed ADC differential gain errors. Correlation (52) between the digital output stream and the dither signal is used to detect a non-unity condition and derive gain control feedback. Correlation with the dither signal is also used to detect gain differences between multiplexed ADCs and generate corrective feedback.

    Abstract translation: 公开了一种用于模数转换的电路（40），包括多路复用ADC（44,46）。 抖动（16）在转换之前引入（20）到电路中，并从所得数字输出流中减去（26）。 采用增益控制反馈环路（50,51,52,54）来消除抖动信号的非单位增益误差和复用ADC差分增益误差。 数字输出流与抖动信号之间的相关（52）用于检测非单位条件并导出增益控制反馈。 与抖动信号的相关性也用于检测多路复用ADC之间的增益差异并生成校正反馈。

    TECHNIQUE FOR IMPROVING THE RESOLUTION OF AN A/D CONVERTER IN A SPECTROMETER USING DITHER
    65.
    发明公开
    TECHNIQUE FOR IMPROVING THE RESOLUTION OF AN A/D CONVERTER IN A SPECTROMETER USING DITHER 失效
    技术，提高A / D转换器的分光计分辨率使用振动信号。

    公开(公告)号：EP0538252A1

    公开(公告)日：1993-04-28

    申请号：EP90911030.0

    申请日：1990-07-12

    Applicant: BIO-RAD LABORATORIES, INC.

    Inventor： CURBELO, Raul

    IPC: G01J3 ,  G01R23 ,  H03M1

    CPC classification number: G01J3/453 ,  H03M1/201

    Abstract: Technique destinée à améliorer la résolution d'un convertisseur analogique/numérique (30). Le signal analogique d'entrée est échantillonné pour générer un niveau analogique et le niveau analogique est maintenu (20) pendant un intervalle. Un signal de vibration (22) est superposé (23) au niveau maintenu pour générer une tension fluctuante. Cette tension fluctuante est alors échantillonnée (25) au moins N fois ou plus, et N valeurs échantillonnées sont communiquées au convertisseur A/N (30) de sorte que N valeurs numérisées sont générées. La moyenne de ces valeurs numérisées est établie (32) afin de produire un signal de sortie dont l'erreur de numérisation est réduite d'un facteur allant jusqu'à N1/2.

    Analog-to-digital conversion
    66.
    发明公开
    Analog-to-digital conversion 失效
    模拟到数字的转换。

    公开(公告)号：EP0184398A2

    公开(公告)日：1986-06-11

    申请号：EP85308700.5

    申请日：1985-11-29

    Applicant: RCA LICENSING CORPORATION

    Inventor： Willis, Donald Henry

    IPC: H03M1/20 ,  H04N9/455

    CPC classification number: H03M1/201 ,  H03M1/365 ,  H04N19/90

    Abstract: a A narrow bandwidth analog-to-digital conversion (ADC) system is described in the context of the color burst processing and burst phase detecting circuitry of a digital color television receiver. The ADC (14) includes a dither generator which adds a dither signal to either the analog input signal (10) or to the reference signal (38) used by the ADC. This dither signal increases in magnitude by 1/16 of an LSB value at a rate one-quarter of the burst frequency and changes in sign at one-half of the burst frequency. This signal passes through a low-pass filter (18) in the chrominance channel providing an increase in sample resolution by averaging the samples in a chroma band-pass filter and in the phase detecting circuitry (30).

    Analog-to-digital conversion apparatus, analog-to-digital conversion method, and electronic device
    68.
    发明授权
    Analog-to-digital conversion apparatus, analog-to-digital conversion method, and electronic device 有权
    模数转换装置，模数转换方法和电子设备

    公开(公告)号：EP2405578B1

    公开(公告)日：2018-01-24

    申请号：EP11168860.2

    申请日：2011-06-07

    Applicant: Tanita Corporation

    Inventor： Nakada, Masato

    IPC: H03M1/06 ,  H03M1/20 ,  H03M1/12

    CPC classification number: H03M1/201

    Abstract: An AD conversion apparatus includes a shift signal generating portion configured to generate n shift signals ( n is a natural number greater than one) of which amplitudes are different from each other; a shift signal controlling portion configured to control the shift signal generating portion; a compounding portion configured to compound input analog signal and the n shift signals sequentially into n first signals; an AD converting portion configured to execute AD conversion to convert the n first signals into n second signals; and a signal processing portion configured to calculate an average of the n second signals to generate output digital signal.

    Systems and methods for improving data converters
    69.
    发明公开
    Systems and methods for improving data converters 审中-公开
    Systeme und Verfahren zur Verbesserung von Datenkonvertern

    公开(公告)号：EP1973231A1

    公开(公告)日：2008-09-24

    申请号：EP08102643.7

    申请日：2008-03-15

    Applicant: Honeywell International Inc.

    Inventor： Newlin, Matthew P. ,  Standjord, Lee K. ,  Greening, Thomas C. ,  Keith, Gregory W.

    IPC: H03M1/06 ,  G06F7/58

    CPC classification number: H03M1/0641 ,  G06F7/588 ,  H03M1/201 ,  H03M1/661

    Abstract: Systems and methods for improving efficiency of a data converter. An example method generates a noise signal, alters the spectrum of the noise signal based on operation of an associated data converter, and supplies the altered spectrum noise signal to the associated data converter. The data converter is a digital-to-analog converter or an analog-to-digital converter. The altered spectrum noise signal is notched at frequencies of interest. The spectrum is altered by sending a signal generated by a random number generator to a delay device and adding the output of the delay device from the output of the random number generator. Also, the spectrum is altered by seeding first and second identical random number generators, delaying the operation of the first random number generator, and adding the output of the delayed first random number generator from the second random number generator.

    Abstract translation: 提高数据转换器效率的系统和方法。 示例性方法产生噪声信号，基于相关联的数据转换器的操作来改变噪声信号的频谱，并将改变的频谱噪声信号提供给相关联的数据转换器。 数据转换器是一个数模转换器或一个模拟 - 数字转换器。 改变的频谱噪声信号在感兴趣的频率处被切断。 通过将随机数发生器产生的信号发送到延迟装置并且从随机数发生器的输出添加延迟装置的输出来改变频谱。 此外，通过播种第一和第二相同的随机数发生器来改变频谱，延迟第一随机数发生器的操作，并且从第二随机数发生器添加延迟的第一随机数发生器的输出。

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