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    System and method for signal decomposition, analysis and reconstruction
    21.
    发明授权
    System and method for signal decomposition, analysis and reconstruction 有权
    信号分解，分析和重建的系统和方法

    公开(公告)号：US07706992B2

    公开(公告)日：2010-04-27

    申请号：US11360223

    申请日：2006-02-23

    Applicant: Carlos A. Ricci ,  Vladimir V. Kovtun

    Inventor： Carlos A. Ricci ,  Vladimir V. Kovtun

    IPC: H04B1/66 ,  G06F17/00

    CPC classification number: H03H17/0201 ,  A61B5/0006 ,  A61B5/04014 ,  A61B5/0432 ,  A61B5/044 ,  G06K9/00523

    Abstract: The present invention provides a system and method for representing quasi-periodic (“qp”) waveforms comprising, representing a plurality of limited decompositions of the qp waveform, wherein each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the qp waveform. These decompositions are stored into a data structure having a plurality of attributes. Optionally, these attributes are used to reconstruct the qp waveform, or patterns or features of the qp wave can be determined by using various pattern-recognition techniques. Some embodiments provide a system that uses software, embedded hardware or firmware to carry out the above-described method. Some embodiments use a computer-readable medium to store the data structure and/or instructions to execute the method.

    Abstract translation: 本发明提供一种用于表示准周期（“qp”）波形的系统和方法，包括表示qp波形的多个有限分解，其中每个分解包括第一和第二振幅值和至少一个时间值。 在一些实施例中，每个分解被相位调整，使得多个有限分解的算术和重建qp波形。 这些分解被存储到具有多个属性的数据结构中。 可选地，这些属性用于重建qp波形，或者可以通过使用各种模式识别技术来确定qp波的图案或特征。 一些实施例提供使用软件，嵌入式硬件或固件来执行上述方法的系统。 一些实施例使用计算机可读介质来存储用于执行该方法的数据结构和/或指令。

    Digital signal-processing structure and methodology featuring engine-instantiated, wave-digital-filter componentry, and fabrication thereof
    22.
    发明授权
    Digital signal-processing structure and methodology featuring engine-instantiated, wave-digital-filter componentry, and fabrication thereof 有权
    数字信号处理结构和方法，其特征在于具有引擎实例化，波数字滤波器组件及其制造

    公开(公告)号：US07363334B2

    公开(公告)日：2008-04-22

    申请号：US10651233

    申请日：2003-08-28

    Applicant: Thomas E. Curtis ,  Steven B. Sidman

    Inventor： Thomas E. Curtis ,  Steven B. Sidman

    IPC: G06F17/10

    CPC classification number: H03H17/0201

    Abstract: Digital signal-processing structure and methodology which feature a time-slice-based digital fabricating engine, and software operating structure operatively associated with that engine structured to operate the engine in a time-slice-based fabrication mode wherein the engine, in a time-differentiated and instantiating manner, functions to fabricate a time-succession of individual, composite wave digital filters. Each of these filters takes the form of (1) a concatenated assembly including one to a plurality of upstream, early-stage, decimate-by-two, signal-processing agencies connected in a cascade series arrangement, with each such agency possessing a first transfer function having a first transition bandwidth, and (2) a single, downstream, later-stage, decimate-by-two, signal-processing agency which possesses a second transfer function having a transition bandwidth which is less than the mentioned first transition bandwidth.

    Abstract translation: 具有基于时间片的数字制造引擎的数字信号处理结构和方法，以及与该引擎可操作地相关联的软件操作结构，其被构造为以时间片为基础的制造模式来操作发动机，其中， 具有差异化和实例化的功能，用于制造单个复合波数字滤波器的时间序列。 这些过滤器中的每个过滤器采取以下形式：（1）包括以级联系列排列连接的一个到多个上游，早期，抽搐，信号处理机构的级联组件，每个这样的机构具有第一 具有第一过渡带宽的传递函数，以及（2）具有第二传递函数的单个，下游，后级，二进制信号处理机构，其具有小于所述第一过渡带宽的转换带宽 。

    Digital signal-processing structure and methodology featuring engine-instantiated, wave-digital-filter componentry, and fabrication thereof
    23.
    发明申请
    Digital signal-processing structure and methodology featuring engine-instantiated, wave-digital-filter componentry, and fabrication thereof 有权
    数字信号处理结构和方法，其特征在于具有引擎实例化，波数字滤波器组件及其制造

    公开(公告)号：US20050050126A1

    公开(公告)日：2005-03-03

    申请号：US10651233

    申请日：2003-08-28

    Applicant: Thomas Curtis ,  Steven Sidman

    Inventor： Thomas Curtis ,  Steven Sidman

    IPC: G06F17/10 ,  H03H17/02

    CPC classification number: H03H17/0201

    Abstract: Digital signal-processing structure and methodology which feature a time-slice-based digital fabricating engine, and software operating structure operatively associated with that engine structured to operate the engine in a time-slice-based fabrication mode wherein the engine, in a time-differentiated and instantiating manner, functions to fabricate a time-succession of individual, composite wave digital filters. Each of these filters takes the form of (1) a concatenated assembly including one to a plurality of upstream, early-stage, decimate-by-two, signal-processing agencies connected in a cascade series arrangement, with each such agency possessing a first transfer function having a first transition bandwidth, and (2) a single, downstream, later-stage, decimate-by-two, signal-processing agency which possesses a second transfer function having a transition bandwidth which is less than the mentioned first transition bandwidth.

    Abstract translation: 具有基于时间片的数字制造引擎的数字信号处理结构和方法，以及与该引擎可操作地相关联的软件操作结构，其被构造为以时间片为基础的制造模式来操作发动机，其中， 具有差异化和实例化的功能，用于制造单个复合波数字滤波器的时间序列。 这些过滤器中的每个过滤器采取以下形式：（1）包括以级联系列排列连接的一个到多个上游，早期，抽搐，信号处理机构的级联组件，每个这样的机构具有第一 具有第一过渡带宽的传递函数，以及（2）具有第二传递函数的单个，下游，后级，二进制信号处理机构，其具有小于所述第一过渡带宽的转换带宽 。

    System and method for filtering using an interleaved/retimed architecture
    24.
    发明授权
    System and method for filtering using an interleaved/retimed architecture 失效
    使用交错/重新定时架构进行过滤的系统和方法

    公开(公告)号：US6108680A

    公开(公告)日：2000-08-22

    申请号：US220410

    申请日：1994-03-30

    Applicant: Lynette C. Liu ,  Toshiaki Yoshino

    Inventor： Lynette C. Liu ,  Toshiaki Yoshino

    IPC: H03H17/02 ,  G06F17/10

    CPC classification number: H03H17/0201

    Abstract: An interleaved all-pass section for a lattice wave digital filter, comprises a first input carrying an interleaved signal, a first adder/multiplier network (AMN) connected to said first input, a second adder/multiplier network (AMN), and a delay element connected between said first AMN and said second AMN, wherein said delay element causes the propagation of signals from said first AMN to said second AMN to be delayed sufficiently to enable said second AMN and said first AMN to process separate signals in parallel.

    Abstract translation: 一种用于晶格波数字滤波器的交错全通部分，包括承载交织信号的第一输入端，连接到所述第一输入端的第一加法器/乘法器网络（AMN），第二加法器/乘法器网络（AMN）和延迟 连接在所述第一AMN和所述第二AMN之间的元件，其中所述延迟元件使得从所述第一AMN到所述第二AMN的信号的传播被充分延迟以使得所述第二AMN和所述第一AMN能够并行处理单独的信号。

    Wave digital filter composed of delays and n-port adaptors
    25.
    发明授权
    Wave digital filter composed of delays and n-port adaptors 失效
    波形数字滤波器组合的延迟和N端口适配器

    公开(公告)号：US5197020A

    公开(公告)日：1993-03-23

    申请号：US644117

    申请日：1991-01-22

    Applicant: Hans-Dieter Schwartz

    Inventor： Hans-Dieter Schwartz

    IPC: H03H15/00 ,  H03H17/02 ,  H03H21/00 ,  H04B3/04

    CPC classification number: H03H17/0201

    Abstract: A wave digital filter wherein structures are specified such that the transfer function (Y/X) can be arbitrarily prescribed. The filter input signal X--individually weighted via multipliers (E.sub.1 . . . E.sub.x)--is input at all adaptor inputs and outputs with adders. The filter output signal Y is formed by summation of the signals weighted via further multipliers (A.sub.a . . . A.sub.y) which are output at all adapter and delay inputs and outputs.

    Abstract translation: 一种波数字滤波器，其特征在于可以任意规定传递函数（Y / X）。 通过乘法器（E1。。Ex）的单独加权的滤波器输入信号 - 在所有适配器输入和输出端都加上加法器。 滤波器输出信号Y是通过在所有适配器和延迟输入和输出端输出的另外的乘法器（Aa。...）加权的信号的和来形成的。

    System and method for signal decomposition, analysis and reconstruction
    28.
    发明授权
    System and method for signal decomposition, analysis and reconstruction 有权

    公开(公告)号：US09734838B2

    公开(公告)日：2017-08-15

    申请号：US15132914

    申请日：2016-04-19

    Applicant: Vios Medical Singapore Pte. Ltd.

    Inventor： Carlos A. Ricci ,  Vladimir V. Kovtun

    IPC: G10L21/14 ,  G10L19/26 ,  H03H17/02 ,  A61B5/0432 ,  G01V1/28

    CPC classification number: G10L19/26 ,  A61B5/0432 ,  G01V1/28 ,  G01V2210/43 ,  H03H17/0201 ,  H03H17/0248 ,  H03H17/0266

    Abstract: A system and method for representing quasi-periodic waveforms, for example, representing a plurality of limited decompositions of the quasi-periodic waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the quasi-periodic waveform. Data-structure attributes are created and used to reconstruct the quasi-periodic waveform. Features of the quasi-periodic wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g., lowest frequency “rate” component) that varies over time (by a factor of two to three) many overlapping filters use bandpass and overlap parameters that allow tracking the component's frequency version on changing quarter-phase basis.

    Low delay modulated filter bank
    29.
    发明授权
    Low delay modulated filter bank 有权

    公开(公告)号：US09722578B2

    公开(公告)日：2017-08-01

    申请号：US15353914

    申请日：2016-11-17

    Applicant: Dolby International AB

    Inventor： Per Ekstrand

    IPC: G06F17/10 ,  H03H17/02 ,  G10L21/00 ,  G10L19/02 ,  G10L19/26 ,  H04R3/04

    CPC classification number: H04R3/04 ,  G06F17/10 ,  G06F17/11 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/0208 ,  G10L19/26 ,  G10L19/265 ,  G10L21/00 ,  H03H17/0201 ,  H03H17/0248 ,  H03H17/0266 ,  H03H17/0275 ,  H03H17/0294 ,  H03H2017/0297 ,  H04S7/307

    Abstract: The document relates to modulated sub-sampled digital filter banks, as well as to methods and systems for the design of such filter banks. In particular, the present document proposes a method and apparatus for the improvement of low delay modulated digital filter banks. The method employs modulation of an asymmetric low-pass prototype filter and a new method for optimizing the coefficients of this filter. Further, a specific design for a 64 channel filter bank using a prototype filter length of 640 coefficients and a system delay of 319 samples is given. The method substantially reduces artifacts due to aliasing emerging from independent modifications of subband signals, for example when using a filter bank as a spectral equalizer. The method is preferably implemented in software, running on a standard PC or a digital signal processor (DSP), but can also be hardcoded on a custom chip. The method offers improvements for various types of digital equalizers, adaptive filters, multiband companders and spectral envelope adjusting filter banks used in high frequency reconstruction (HFR) or parametric stereo systems.

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