VARIABLE CODER APPARATUS FOR RESONANT POWER CONVERSION AND METHOD
    2.
    发明申请
    VARIABLE CODER APPARATUS FOR RESONANT POWER CONVERSION AND METHOD 审中-公开
    用于谐振功率转换和方法的变量编码器装置

    公开(公告)号:WO2005015746A3

    公开(公告)日:2005-05-19

    申请号:PCT/US2004025223

    申请日:2004-08-04

    Abstract: A noise-shaping coder with variable or reconfigurable characteristics is disclosed. In one exemplary embodiment, an improved apparatus for signal modulation is disclosed. The apparatus (see figure 1) generally comprises a noise-shaping coder having programmable coefficients, (see figure 1, CSEL), programmable coder order (see figure 1, MSEL), programmable oversampling frequency (see figure 1, CKEN), and/or programmable dither (see figure 1, D). In a second exemplary embodiment, an improved method for implementing noise shaping coding is disclosed. The apparatus generally compromises a means for switching from one order coder to another order coder, as well as switching oversampling frequency.

    Abstract translation: 公开了具有可变或可重新配置特性的噪声整形编码器。 在一个示例性实施例中,公开了一种用于信号调制的改进装置。 该装置(见图1)通常包括具有可编程系数(参见图1,CSEL),可编程编码器顺序(见图1,MSEL),可编程过采样频率(见图1,CKEN)的噪声整形编码器和/ 或可编程抖动(见图1,D)。 在第二示例性实施例中,公开了一种用于实现噪声整形编码的改进方法。 该装置通常损害用于从一个订单编码器切换到另一个订单编码器的装置以及切换过采样频率。

    MULTIPLE MODE ANALOG-TO-DIGITAL CONVERTER EMPLOYING A SINGLE QUANTIZER
    3.
    发明申请
    MULTIPLE MODE ANALOG-TO-DIGITAL CONVERTER EMPLOYING A SINGLE QUANTIZER 审中-公开
    多模式模拟数字转换器采用单个量子

    公开(公告)号:WO0217495A3

    公开(公告)日:2004-02-26

    申请号:PCT/US0125988

    申请日:2001-08-20

    CPC classification number: H03M3/396 H03M3/428 H03M3/448 H03M3/454

    Abstract: Several delta-sigma modulator circuits and a single quantizer provide analog-to-digital conversionfor mulitple frequency bands. A wideband mode is provided by coupling an analog signal to bedigitized directly to quantizer. Narrowband modes are provided by switching the analog signalto be digitized into one of several delta-sigma modulator circuits. Noise shaping and filtering bythe delta-sigma modulator circuits result in improved signal-to-noise-and-distortion performanceand increased resoulution. Performance is further enhanced by feeding back multiple bits outputby the quantizer to the delta-sigma modulator circuits. The delta-sigma modulator circuits can beeither continuous time or discrete time delta sigma modulators.

    Abstract translation: 几个Δ-Σ调制器电路和单个量化器为多个频带提供模数转换。 通过将模拟信号直接耦合到量化器来提供宽带模式。 通过将要数字化的模拟信号切换成几个Δ-Σ调制器电路之一来提供窄带模式。 由Δ-Σ调制器电路进行的噪声整形和滤波导致改善的信噪比和失真性能以及增加的再污染。 通过将量化器输出的多个比特反馈到Δ-Σ调制器电路,进一步增强了性能。 Δ-Σ调制器电路可以是连续时间或离散时间ΔΣ调制器。

    ANALOG TO DIGITAL MODULATOR
    4.
    发明申请
    ANALOG TO DIGITAL MODULATOR 审中-公开
    模拟到数字调制器

    公开(公告)号:WO02089316A3

    公开(公告)日:2003-03-13

    申请号:PCT/US0213098

    申请日:2002-04-25

    CPC classification number: H03M3/32 H03M3/424 H03M3/448 H03M3/452 H03M3/454

    Abstract: A method and system are disclosed for operating two or more integrator amplifiers with different power supplies for a modulator of an analog-to-digital ("A/D") converter. A first, upstream integrator (int1) is operated with one power supply, and the other downstream integrator(s) is/are operated with at least another power supply (INT2). The modulator has amplifiers with coefficient gains having values that are determined and set so that voltage levels for the at least another integrator are maintained within operating and output limits. An integrating coefficient gain (K1) for the first integrator is set to have a sufficiently large value so that an integrating capacitor can be made small for the one integrator. Another integrating coefficient gain (K2) for a second integrator is set to have a sufficiently small value so that an output voltage from the first integrator is sufficiently attenuated to a voltage value within an operating range of the second integrator.

    Abstract translation: 公开了一种用于对模数(A / D)转换器的调制器运行具有不同电源的两个或多个积分放大器的方法和系统。 第一个上游集成器(int1)用一个电源运行,另一个下游积分器至少与另一个电源(INT2)一起工作。 调制器具有放大器,其系数增益具有确定和设置的值,使得至少另一个积分器的电压电平保持在操作和输出限制内。 将第一积分器的积分系数增益(K1)设定为具有足够大的值,使得对于一个积分器可以使积分电容器较小。 将第二积分器的另一积分系数增益(K2)设定为具有足够小的值,使得来自第一积分器的输出电压充分衰减到第二积分器的工作范围内的电压值。

    DYNAMIC RANGE REDUCTION FOR ANALOG-TO-DIGITAL CONVERTERS
    5.
    发明申请
    DYNAMIC RANGE REDUCTION FOR ANALOG-TO-DIGITAL CONVERTERS 审中-公开
    用于模拟数字转换器的动态范围减少

    公开(公告)号:WO2016034765A1

    公开(公告)日:2016-03-10

    申请号:PCT/FI2015/050556

    申请日:2015-08-28

    Inventor: DANNEELS, Hans

    CPC classification number: H03M3/322 H03M3/368 H03M3/448 H03M3/45 H03M3/454

    Abstract: In accordance with the exemplary embodiments of the invention there is at least an apparatus to perform a method includingreceiving by an analog-to-digital converter a signal; determining whether an in-band blocker is present in the signal; andadjusting a transfer function of the analog-to-digital converter based on whether an in-band blocker is present by configuring a loop filter of the analog-to-digital converter.

    Abstract translation: 根据本发明的示例性实施例,存在至少一种执行包括由模数转换器接收信号的方法的装置; 确定所述信号中是否存在带内阻止器; 以及通过配置模数转换器的环路滤波器,基于是否存在带内阻塞器来调整模数转换器的传递函数。

    一种SIGMA-DELTA调制器
    6.
    发明申请

    公开(公告)号:WO2012139356A1

    公开(公告)日:2012-10-18

    申请号:PCT/CN2011/079023

    申请日:2011-08-28

    Inventor: 谢宁 王晖 张宇

    CPC classification number: H03M3/448 H03M3/452

    Abstract: 本发明适用于信号处理领域,提供了一种sigma-delta调制器,包括:第二增益放大器、第三增益放大器、数模转换器,以及顺序连接的减法器、第一加法器、第一积分器、第二积分器、第一增益放大器、第二加法器、量化器;所述减法器的正向输入端接所述第二加法器的另一输入端,所述第一积分器的输出端还经所述第二增益放大器后接所述第二加法器的再一输入端,所述量化器的输出端经所述数模转换器接所述减法器的反向输入端,所述第二积分器的输出端还经所述第三增益放大器后接所述第一加法器的另一输入端。在本发明中,通过各积分器只处理量化噪声,实现了一种sigma-delta调制器,能减少了失真、提高稳定性及输入信号的动态范围。

    CONTINUOUS-TIME SIGMA-DELTA ANALOG-TO-DIGITAL CONVERTER WITH CAPACITOR AND/OR RESISTANCE DIGITAL SELF-CALIBRATION MEANS FOR RC SPREAD COMPENSATION
    7.
    发明申请
    CONTINUOUS-TIME SIGMA-DELTA ANALOG-TO-DIGITAL CONVERTER WITH CAPACITOR AND/OR RESISTANCE DIGITAL SELF-CALIBRATION MEANS FOR RC SPREAD COMPENSATION 审中-公开
    具有电容和/或电阻数字自校准功能的连续时间符号 - 数字 - 数字转换器用于RC扩展补偿

    公开(公告)号:WO2007085997A1

    公开(公告)日:2007-08-02

    申请号:PCT/IB2007/050213

    申请日:2007-01-22

    Inventor: LE GUILLOU, Yann

    CPC classification number: H03M3/386 H03M3/43 H03M3/448 H03M3/452

    Abstract: A continuous-time sigma-delta analog-to-digital converter (CV) comprises i) a signal path (SP) comprising at least one combiner (Cl) for combining analog signals to convert with feedback analog signals, at least two integrators (Hl, H5), mounted in series, to integrate the combined analog signals, a quantizer (Q) for converting the integrated signals into digital signals, and a decimation filter (DF) for filtering digital signals, and ii) a feedback path (FP) comprising at least a digital-to-analog converter (DAC) for converting the digital signals output by the quantizer (Q) into feedback analog signals intended for the combiner (Cl). Each integrator (Hl, H5) comprises variable capacitance means arranged to be set in chosen states define by the values of a digital word, to present chosen capacitances. The converter (CV) also comprises a self-calibration control means (CCM) arranged a) to generate a digital word with a chosen first value, b) to estimate an in-band noise IBN(n) from the filtered digital signals and to compare this IBN(n) to the preceding IBN(n-l), c) to modify the digital word value to decrease the capacitance of each integrator from a chosen decrement when IBN(n) is smaller than IBN(n-l), d) to iterate steps b) and c) till IBN(n) be greater than IBN(n-l), and to choose as calibration digital word value the value corresponding to IBN(n- 1) to set the calibration state of the variable capacitance means.

    Abstract translation: 连续时间Σ-Δ模数转换器(CV)包括i)包括用于组合模拟信号以与反馈模拟信号一起转换的至少一个组合器(C1)的信号路径(SP),至少两个积分器 ,H5),用于集成组合的模拟信号,用于将积分信号转换为数字信号的量化器(Q)和用于对数字信号进行滤波的抽取滤波器(DF),以及ii)反馈路径(FP) 至少包括用于将由量化器(Q)输出的数字信号转换成用于组合器(C1)的反馈模拟信号的数模转换器(DAC)。 每个积分器(H1,H5)包括可变电容装置,其被布置成被设置成由数字字的值定义的选定状态,以呈现所选择的电容。 转换器(CV)还包括一个自校准控制装置(CCM),其被配置为a)产生具有所选择的第一值的数字字,b)从滤波后的数字信号估计带内噪声IBN(n) 将IBN(n)与前面的IBN(nl)进行比较,c)当IBN(n)小于IBN(nl)时,修改数字字值以减小每个积分器的电容,d)迭代 步骤b)和c)直到IBN(n)大于IBN(nl),并且选择对应于IBN(n-1)的值作为校准数字字值,以设置可变电容装置的校准状态。

    METHOD AND SYSTEM FOR OPERATING TWO OR MORE INTEGRATORS WITH DIFFERENT POWER SUPPLIES FOR AN ANALOG-TO-DIGITAL DELTA-SIGMA MODULATOR
    9.
    发明申请
    METHOD AND SYSTEM FOR OPERATING TWO OR MORE INTEGRATORS WITH DIFFERENT POWER SUPPLIES FOR AN ANALOG-TO-DIGITAL DELTA-SIGMA MODULATOR 审中-公开
    用于模拟数字三角形调制器的不同功率的两个或更多整合器的操作方法和系统

    公开(公告)号:WO2002089316A2

    公开(公告)日:2002-11-07

    申请号:PCT/US2002/013098

    申请日:2002-04-25

    IPC: H03F

    CPC classification number: H03M3/32 H03M3/424 H03M3/448 H03M3/452 H03M3/454

    Abstract: A method and system are disclosed for operating two or more integrator amplifiers with different power supplies for a modulator of an analog-to-digital ("A/D) converter. A first, upstream integrator is operated with one power supply, and the other downstream integrator(s) is/are operated with at least another power supply. The modulator has amplifiers with coefficient gains having values that are determined and set so that voltage levels for the at least another integrator are maintained within operating and output limits. An integrating coefficient gain k1 for the first integrator is set to have a sufficiently large value so that an integrating capacitor can be made small for the one integrator. Another integrating coefficient gain k2 for a second integrator is set to have a sufficiently small value so that an output voltage from the first integrator is sufficiently attenuated to a voltage value within an operating range of the second integrator.

    Abstract translation: 公开了一种用于对模数(A / D)转换器的调制器运行具有不同电源的两个或更多个积分放大器的方法和系统,第一上游积分器由一个电源供电,另一个 下游积分器至少与另一个电源一起工作,调制器具有放大器,其系数增益具有确定和设置的值,使得至少另一个积分器的电压电平保持在运行和输出限度内 将第一积分器的系数增益k1设定为具有足够大的值,使得对于一个积分器可以使积分电容小,另一个积分器的积分系数增益k2被设置为具有足够小的值,使得输出 来自第一积分器的电压被充分衰减到第二积分器的工作范围内的电压值。

    MODULATEUR SIGMA-DELTA PASSE-BANDE ET UTILISATIONS DU MODULATEUR SIGMA DELTA POUR LA CONVERSION, LA DETECTION ET LA PRODUCTION DE SIGNAUX
    10.
    发明申请
    MODULATEUR SIGMA-DELTA PASSE-BANDE ET UTILISATIONS DU MODULATEUR SIGMA DELTA POUR LA CONVERSION, LA DETECTION ET LA PRODUCTION DE SIGNAUX 审中-公开
    带通信号调制器和使用SIGMA-DELTA调制器进行转换,检测和生成信号

    公开(公告)号:WO2002084884A1

    公开(公告)日:2002-10-24

    申请号:PCT/FR2002/001229

    申请日:2002-04-09

    CPC classification number: H03M3/404 H03M3/43 H03M3/448

    Abstract: La présente inventive concerne un modulateur sigma-delta comprenant au moins un résonateur (110a, 110b), un convertisseur (120) pour convertir un signal analogique en provenance du résonateur en un signal numérique à information temporelle, et une boucle de rétroaction reliant une sortie du convertisseur une entrée d'excitation du résonateur. Conformément à l'invention, au moins un résonateur du modulateur est un résonateur choisi dans le groupe comprenant les résonateurs mécaniques, acoustiques, électromécaniques, électrostatiques, optiques et chimiques. Application à la conversion analogique-numérique, à la détection et à la génération de signaux.

    Abstract translation: 本发明涉及一种Σ-Δ调制器,其包括至少一个谐振器(110a,110b),用于将来自谐振器的模拟信号转换成具有时间信息的数字信号的转换器(120),以及连接转换器的输出的反馈回路 到谐振器的激励输入。 本发明的特征在于,调制器的至少一个谐振器是从包括机械,声学,机电,静电,光学和化学谐振器的组中选出的谐振器。 本发明适用于信号的模数转换,检测和产生。

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