公开(公告)号：US5703427A

公开(公告)日：1997-12-30

申请号：US730173

申请日：1996-10-15

申请人： Marc Solal ,  Pascal Ventura ,  Jean-Michel Hode

发明人： Marc Solal ,  Pascal Ventura ,  Jean-Michel Hode

IPC分类号： H03H9/145 ,  H03H9/64

CPC分类号： H03H9/14505 ,  H03H9/02685 ,  H03H9/14538

摘要： The distributed acoustic reflection transducer has a reflection function which includes at least one reversal of sign, that is to say it possesses at least one reflector and, in general, a combination of reflectors, the center of which is at a distance of k.lambda./2+.lambda./4 from the center of the other reflectors, .lambda. being the wavelength corresponding to the central operating frequency of the transducer. The applications will be for the production of surface-wave filters in radio communication systems.

摘要翻译： 分布式声反射换能器具有反射功能，其包括至少一个符号反转，也就是说它具有至少一个反射器，并且通常具有反射器的组合，其中心的距离为λλ/ 2λλ/ 4，其中λ是对应于换能器的中心工作频率的波长。 这些应用将用于在无线电通信系统中生产表面波滤波器。

公开(公告)号：US5475348A

公开(公告)日：1995-12-12

申请号：US211622

申请日：1994-04-18

申请人： Jean-Michel Hode ,  Jean Desbois ,  Marc Solal

发明人： Jean-Michel Hode ,  Jean Desbois ,  Marc Solal

IPC分类号： H03H9/00 ,  H03H9/02 ,  H03H9/145 ,  H03H9/64

CPC分类号： H03H9/0057 ,  H03H9/02653 ,  H03H9/0285 ,  H03H9/02905

摘要： It consists of several channels (V1, V2) in parallel, which exhibit an inter-transducer gap difference (2.sub.1 -4.sub.1 ; 2.sub.2 -4.sub.2) equal to an even multiple of the half-wavelength (.lambda.) at the central frequency, from one channel to the next, so as to cancel the delay line transfer function which corresponds to the direct path between transducers.

摘要翻译： PCT No.PCT / FR92 / 00827 Sec。 371日期1994年04月18日 102（e）1994年4月18日PCT PCT日期：1992年10月28日PCT公布。 公开号WO93 / 08641 日期为1993年04月29日。它由并行的多个通道（V1，V2）组成，它们具有等于半波长（λ）的偶数倍的换能器间差（21-41; 22-42） 在中心频率，从一个通道到下一个通道，以消除对应于换能器之间的直接路径的延迟线传递函数。

公开(公告)号：US20120056765A1

公开(公告)日：2012-03-08

申请号：US13127040

申请日：2009-10-29

申请人： Jean-Michel Hode

发明人： Jean-Michel Hode

IPC分类号： H03M3/02 ,  H03L7/06

CPC分类号： H03M3/37 ,  H03M3/402 ,  H03M3/424 ,  H03M3/456

摘要： In a method for controlling the loop delay in a sigma-delta modulator having a loop including an integrator, an analog-to-digital converter, a digital-to-analog converter, and an adder-subtractor, at least one phase-control programmable digital command representing a phase shift is applied to one of the clock signals of the converters of the loop to adjust the relative phase between a clock signal of the analog-to-digital converter and a clock signal of the digital-to-analog converter. A sigma-delta modulator for converting an analog signal implements the method.

摘要翻译： 一种用于控制具有包括积分器，模数转换器，数模转换器和加法器 - 减法器的回路的Σ-Δ调制器中的环路延迟的方法，至少一个相位控制可编程 表示相移的数字命令被施加到环路的转换器的一个时钟信号，以调整模数转换器的时钟信号与数模转换器的时钟信号之间的相对相位。 用于转换模拟信号的Σ-Δ调制器实现该方法。

公开(公告)号：US20120032825A1

公开(公告)日：2012-02-09

申请号：US13127041

申请日：2009-10-29

申请人： Jean-Michel Hode

发明人： Jean-Michel Hode

IPC分类号： H03M1/06 ,  H03M3/02

CPC分类号： H03M3/37 ,  H03M3/354 ,  H03M3/402 ,  H03M3/424 ,  H03M3/456

摘要： In a method for correcting amplitude and phase offsets in a sigma-delta modulator having a loop including an integrator with a filter and an amplifier, an analog-to-digital converter, a digital-to-analog converter, and an adder-subtractor, an open-loop amplitude/phase frequency response of the modulator is estimated digitally. A phase offset value and an amplitude offset value are calculated by comparing the estimated open-loop amplitude/phase response with a reference amplitude/phase frequency response. The phase and gain offsets of the loop are then compensated for according to the estimated offset values. A sigma-delta modulator implements the method.

摘要翻译： 在具有包括具有滤波器和放大器的积分器的回路的Σ-Δ调制器中校正幅度和相位偏移的方法中，模数转换器，数 - 模转换器和加法器 - 减法器， 数字地估计调制器的开环幅度/相位频率响应。 通过将估计的开环幅度/相位响应与参考振幅/相位频率响应进行比较来计算相位偏移值和振幅偏移值。 然后根据估计的偏移值补偿环路的相位和增益偏移。 Σ-Δ调制器实现该方法。

公开(公告)号：US20110309959A1

公开(公告)日：2011-12-22

申请号：US13127039

申请日：2009-10-29

申请人： Jean-Michel Hode ,  Leila Kamoun

发明人： Jean-Michel Hode ,  Leila Kamoun

IPC分类号： H03M1/20 ,  H03M1/12

CPC分类号： H03M3/386 ,  H03M3/344 ,  H03M3/402 ,  H03M3/414

摘要： In a method for improving resolution and for correcting distortions for a sigma-delta modulator, a modulator converts an analog input signal into a secondary output digital signal sampled at a frequency fe and coded on NB bits, a second main output digital signal s′(t) is represented on NMSB bits also being available at the output. At least three processings are applied successively to the outputs, a first processing carrying out a demodulation by a frequency f0 and a decimation of factor N in an independent manner, z second processing carrying out an improvement of the resolution and a third processing carrying out a correction of the distortions. These three processings are carried out after decimation. A sigma-delta modulator implements the method.

摘要翻译： 在用于提高分辨率和用于校正Σ-Δ调制器的失真的方法中，调制器将模拟输入信号转换为以频率fe采样并以NB位编码的次输出数字信号，第二主输出数字信号s'（ t）在输出端也可用的NMSB位表示。 对输出连续施加至少三个处理，以独立方式执行频率f0的解调和因子N的抽取的第一处理，执行分辨率提高的第二处理和执行分辨率的第三处理 纠正扭曲。 这三个处理在抽取后进行。 Σ-Δ调制器实现该方法。

公开(公告)号：US20090210468A1

公开(公告)日：2009-08-20

申请号：US10574291

申请日：2004-09-30

申请人： Jean-Michel Hode

发明人： Jean-Michel Hode

IPC分类号： G06F7/58

CPC分类号： G06F7/582 ,  G06F1/035 ,  G06F2101/14

摘要： The invention relates to a method and a device for generating agitation noise, and the agitation noise obtained.A subject of the invention is a method for generating agitation noise comprising an arbitrary number of points, with predetermined histogram, shaped around at least one frequency comprising: the generation of noise by a succession of several sequences {h(kN+n)}1≦n≦N of M.N points (M, N integers≧1), [S2]: the choosing for each sequence of M basic subsequence(s) {hlm(n)}1≦n≦N, m≦M in a random and independent manner from among at least L basic subsequence(s) of N shaped points (L integer≧1), [S4]: the choosing in a random and independent manner, for each sequence, of the sign. Thus, by not simply repeating the subsequence, the spectrum of the agitation noise obtained has no spectral lines.A second variant of the invention furthermore comprises [S6]: the choosing in a random and independent manner, for each sequence, of the direction of temporal reading of each of the chosen basic subsequences.A third variant of the invention furthermore proposes, for each sequence, [S8]: the interleaving E of the M chosen subsequences.

摘要翻译： 本发明涉及一种产生搅动噪声的方法和装置，以及获得的搅拌噪音。 本发明的主题是一种产生搅动噪声的方法，其包括围绕至少一个频率形成的具有预定直方图的任意数量的点，包括：通过一系列序列{h（kN + n）} 1产生噪声 MN的点（M，N个整数> = 1）的<= n <= N，[S2]：选择M个基本子序列{hlm（n）} 1 <= n <= N， 在N个形状点的至少L个基本子序列（L integer> = 1）中，以随机和独立的方式<= M，[S4]：以随机和独立的方式，对于每个序列， 标志。 因此，通过不简单地重复子序列，获得的搅动噪声的频谱没有谱线。 本发明的第二变型还包括[S6]：以随机和独立的方式为每个序列选择每个所选择的基本子序列的时间读取方向。 本发明的第三变型还针对每个序列提出了[S8]：M个选择的子序列的交织E。

公开(公告)号：US08514116B2

公开(公告)日：2013-08-20

申请号：US13127039

申请日：2009-10-29

申请人： Jean-Michel Hode ,  Leila Kamoun

发明人： Jean-Michel Hode ,  Leila Kamoun

IPC分类号： H03M3/00

CPC分类号： H03M3/386 ,  H03M3/344 ,  H03M3/402 ,  H03M3/414

摘要： In a method for improving resolution and for correcting distortions for a sigma-delta modulator, a modulator converts an analog input signal into a secondary output digital signal sampled at a frequency fe and coded on NB bits, a second main output digital signal s′(t) is represented on NMSB bits also being available at the output. At least three processings are applied successively to the outputs, a first processing carrying out a demodulation by a frequency f0 and a decimation of factor N in an independent manner, z second processing carrying out an improvement of the resolution and a third processing carrying out a correction of the distortions. These three processings are carried out after decimation. A sigma-delta modulator implements the method.

摘要翻译： 在用于提高分辨率和用于校正Σ-Δ调制器的失真的方法中，调制器将模拟输入信号转换为以频率fe采样并以NB位编码的次输出数字信号，第二主输出数字信号s'（ t）在输出端也可用的NMSB位表示。 对输出连续施加至少三个处理，以独立方式执行频率f0的解调和因子N的抽取的第一处理，执行分辨率提高的第二处理和执行分辨率的第三处理 纠正扭曲。 这三个处理在抽取后进行。 Σ-Δ调制器实现该方法。

公开(公告)号：US07965210B2

公开(公告)日：2011-06-21

申请号：US12513067

申请日：2007-10-26

申请人： Jean-Michel Hode

发明人： Jean-Michel Hode

IPC分类号： H03M3/00

CPC分类号： H03M3/388 ,  H03M3/424

摘要： A closed loop slaving device is provided for slaving a first component, the slaving device including a second component having a multiplicative noise. A compensation noise is added to the input signal of the slaving device, the compensation noise being substantially equal to the input signal of the slaving device multiplied by the multiplicative noise of the second component. A sigma-delta modulator is also provided to convert an analog input signal into a digital output signal by use of an analog-to-digital converter slaved in the closed loop slaving device.

摘要翻译： 提供了一种用于使第一部件从动的闭环从动装置，所述从动装置包括具有乘法噪声的第二部件。 补偿噪声被添加到从动装置的输入信号，补偿噪声基本上等于从动装置的输入信号乘以第二分量的乘法噪声。 还提供了一个Σ-Δ调制器，用于通过使用在闭环从器件中的从模数转换器将模拟输入信号转换为数字输出信号。

公开(公告)号：US20090322576A1

公开(公告)日：2009-12-31

申请号：US12513092

申请日：2007-10-26

申请人： Jean-Michel Hode

发明人： Jean-Michel Hode

IPC分类号： H03M3/00

CPC分类号： H03M3/322 ,  H03M3/424

摘要： The present invention relates to a sigma-delta modulator to convert an analog signal into a digital signal using an analog-to-digital converter slaved in a closed loop. The undecided bits at the output of the analog-to-digital converter are assigned the same values in the digital output signal from the modulator as in the digital signal returned to the input of the modulator.

摘要翻译： 本发明涉及一种使用在闭环中从动的模数转换器将模拟信号转换成数字信号的Σ-Δ调制器。 模数转换器输出端的未定义位在调制器的数字输出信号中被分配与在返回到调制器的输入端的数字信号中相同的值。

公开(公告)号：US07136001B2

公开(公告)日：2006-11-14

申请号：US10382097

申请日：2003-03-06

申请人： Jean-Michel Hode ,  Christophe Flouzat ,  Jean-Luc De Gouy

发明人： Jean-Michel Hode ,  Christophe Flouzat ,  Jean-Luc De Gouy

IPC分类号： H03M3/00

CPC分类号： H03H7/01 ,  H03H7/175 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1775 ,  H03H7/42 ,  H03H9/542 ,  H03H9/605 ,  H03M3/408 ,  H03M3/438 ,  H03M3/456

摘要： The disclosure pertains to continuous-time filtering. More particularly, it relates to filtering in a feedback control loop, for example in a sigma-delta (ΣΔ) modulator. The making of a filter for this type of application comes up against a major problem linked to the relativity between the amplitude and phase responses. This limits the possibilities of choice in order to take steps against the instability of the loop. A continuous-time filter with minimum phase variation carries out the bandpass integration of the signal presented at its input. The making of the continuous-time filter as a bandpass integrator raises the problem of achieving a compromise between gain variations and phase variations close to the −1 critical point, This compromise must lead to the stability of the loop. This problem is resolved by using a continuous-time bandpass integrating filter comprising at least one resonance device with minimum phase variation.

摘要翻译： 本公开涉及连续时间过滤。 更具体地，其涉及在反馈控制环路中的滤波，例如在Σ-Δ（SigmaDelta）调制器中。 制造这种类型的应用的滤波器出现了与幅度和相位响应之间的相对性相关的主要问题。 这限制了选择的可能性，以便针对循环的不稳定性采取措施。 具有最小相位变化的连续时间滤波器执行其输入端呈现的信号的带通积分。 作为带通积分器的连续时间滤波器的产生提出了在接近-1临界点的增益变化和相位变化之间达成妥协的问题，这种折衷必将导致环路的稳定性。 通过使用包括至少一个具有最小相位变化的共振装置的连续时间带通积分滤波器来解决该问题。