公开(公告)号：US11961531B2

公开(公告)日：2024-04-16

申请号：US17737949

申请日：2022-05-05

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： Markus Lohwasser ,  Manuel Jander ,  Max Neuendorf ,  Ralf Geiger ,  Markus Schnell ,  Matthias Hildenbrand ,  Tobias Chalupka

IPC: G10L19/24 ,  G10L19/008 ,  G10L19/02 ,  G10L19/16 ,  G10L19/26 ,  H03H17/02 ,  H03H17/06

CPC classification number: G10L19/24 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/16 ,  G10L19/26 ,  H03H17/0211 ,  H03H17/0272 ,  H03H17/0621 ,  G10L19/02 ,  H03H17/0294

Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.

公开(公告)号：US20170148462A1

公开(公告)日：2017-05-25

申请号：US15424625

申请日：2017-02-03

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： Markus LOHWASSER ,  Manuel JANDER ,  Max NEUENDORF ,  Ralf GEIGER ,  Markus SCHNELL ,  Matthias HILDENBRAND ,  Tobias CHALUPKA

IPC: G10L19/24 ,  H03H17/06 ,  G10L19/26 ,  H03H17/02 ,  G10L19/008 ,  G10L19/02

CPC classification number: G10L19/24 ,  G10L19/008 ,  G10L19/02 ,  G10L19/0204 ,  G10L19/16 ,  G10L19/26 ,  H03H17/0211 ,  H03H17/0272 ,  H03H17/0294 ,  H03H17/0621

Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.

公开(公告)号：US07831645B1

公开(公告)日：2010-11-09

申请号：US11249162

申请日：2005-10-11

Applicant: David P. Berners ,  Jonathan S. Abel

Inventor： David P. Berners ,  Jonathan S. Abel

IPC: G06J1/00 ,  G06F17/10

CPC classification number: H03H17/0211

Abstract: A method and system for designing a discrete-time filter having a transfer function which approximates that of an analog shelf filter is disclosed. Prior art methods include applying the bilinear transform to the analog filter, which has the drawback of warping high-frequency features of the desired transfer function. In an embodiment of the present invention, an analog filter is designed which anticipates the warping imposed by the bilinear transform. For filters whose features approach the Nyquist limit, the inventive method provides a closer approximation to the analog response than direct application of the bilinear transform.

Abstract translation: 公开了一种用于设计离散时间滤波器的方法和系统，该离散时间滤波器具有近似于模拟机架滤波器的传递函数。 现有技术的方法包括将双线性变换应用于模拟滤波器，该模拟滤波器具有翘曲期望传输函数的高频特征的缺点。 在本发明的一个实施例中，设计了一种模拟滤波器，其预测双线性变换施加的翘曲。 对于其特征接近奈奎斯特极限的滤波器，本发明的方法比直接应用双线性变换提供了更接近于模拟响应的近似。

公开(公告)号：US20100235420A1

公开(公告)日：2010-09-16

申请号：US12731122

申请日：2010-03-24

Applicant: Alan N. WILLSON, JR.

Inventor： Alan N. WILLSON, JR.

IPC: G06F17/17

CPC classification number: H03H17/0211 ,  H03H17/0225 ,  H03H17/06 ,  H03H17/0657 ,  H03H2017/0692 ,  H03H2218/08

Abstract: A method and system for the design and implementation of desensitized digital filters with droop correction. The desensitized digital filter includes a first filter configured to receive an input signal, a decimator or upsampler, and a modified desensitized half-band filter. The first filter introduces droop into the passband of the desensitized digital filter. The desensitized half-band filter has a transfer function F(z)=K(1+z−1)G(z) wherein K≠0 is a scale factor, that is modified to omit a (1+z−1) factor block. The modified desensitized half-band filter compensates for the passband droop introduced by the first filter. The first filter may be a sinc filter, CIC filter, or filter having similar properties.

Abstract translation: 一种用于设计和实现具有下垂校正的脱敏数字滤波器的方法和系统。 脱敏数字滤波器包括被配置为接收输入信号的第一滤波器，抽取器或上采样器和修改的去敏化半带滤波器。 第一个滤波器将下垂引入到脱敏数字滤波器的通带中。 脱敏半带滤波器具有传递函数F（z）= K（1 + z-1）G（z）其中K≠0是比例因子，其被修改为省略（1 + z-1）因子 块。 经修正的脱敏半带滤波器补偿由第一滤波器引入的通带下降。 第一过滤器可以是具有相似特性的sinc过滤器，CIC过滤器或过滤器。

公开(公告)号：US20100017781A1

公开(公告)日：2010-01-21

申请号：US12282944

申请日：2007-03-13

Applicant: Marcos Guilherme Schwarz ,  Carlos Alberto Teixeira ,  Marcelo Zanelato ,  Lucas Mondardo Cunico

Inventor： Marcos Guilherme Schwarz ,  Carlos Alberto Teixeira ,  Marcelo Zanelato ,  Lucas Mondardo Cunico

IPC: G06F9/44

CPC classification number: G05B19/18 ,  G05B19/04 ,  G05B19/418 ,  G05B2219/23297 ,  G08C17/00 ,  H03H17/0211 ,  H03H17/0294

Abstract: The present invention relates to a system for programming domestic appliances and a method for programming assembly-line programmable domestic appliances, especially a system wherein programming occurs without the physical connection between a transmission unit and a reprogrammable processor present in a processing unit integrated into the domestic appliance. The system for programming domestic appliances comprises a remote programming unit (UR) and a reprogrammable processor (PR) present in a processing unit (UP) integrated into the domestic appliance (EN), the remote programming unit (UR) being provided with a data transmission device (TUR) and the reprogrammable processor (PR) present in a processing unit (UP) being provided with a data receiving device (RUP), and the data transmission and reception devices (TUR, RUP) are based on a magnetic field. The remote programming unit (UR) is loaded with at least one program code (SN) to be transmitted by the data transmission device (TUR) of the remote programming unit (UR) to the reprogrammable processor (PR) present in the processing unit (UP) of the domestic appliance (EN). A method for programming assembly-line programmable domestic appliances is also disclosed, which is applicable to control the system object of the present invention.

Abstract translation: 本发明涉及一种用于家用电器的编程系统和一种用于编程装配线可编程家用电器的方法，特别是一种系统，其中编程在没有集成到家庭中的处理单元中的传输单元和可再编程处理器之间的物理连接 器具。 用于家用电器编程的系统包括存在于集成到家用电器（EN）的处理单元（UP）中的远程编程单元（UR）和可再编程处理器（PR），远程编程单元（UR）被提供有数据 存在于处理单元（UP）中的传输设备（TUR）和可再编程处理器（PR）提供有数据接收设备（RUP），并且数据发送和接收设备（TUR，RUP）基于磁场。 远程编程单元（UR）被加载有要由远程编程单元（UR）的数据传输设备（TUR）发送到处理单元（UR）中存在的可重新编程处理器（PR）的至少一个程序代码（SN） UP）家用电器（EN）。 还公开了一种用于编程装配线可编程家用电器的方法，其可应用于控制本发明的系统对象。

公开(公告)号：US07199736B2

公开(公告)日：2007-04-03

申请号：US11091014

申请日：2005-03-24

Applicant: Roy G. Batruni

Inventor： Roy G. Batruni

IPC: H03M1/06

CPC classification number: H03H17/0294 ,  H03F1/32 ,  H03F2200/451 ,  H03H17/0211 ,  H03H17/0273 ,  H03M1/0626 ,  H03M1/1038

Abstract: A method of compensating for nonlinear distortions in a digital signal comprises receiving the digital signal, generating a nominal phase shifted signal based on the digital signal, generating a modeled distortion signal based on the digital signal and the nominal phase shifted signal, subtracting the modeled distortion signal from the digital signal, and generating a compensated signal.A compensating system comprises an input interface configured to receive a digital signal having nonlinear distortion, and a distortion model coupled to the interface, configured to generate a nominal phase shifted signal based on the digital signal, generate a modeled distortion signal based on the digital signal and the nominal phase shifted signal, subtract the modeled distortion signal from the digital signal, and generate a compensated signal.

Abstract translation: 补偿数字信号中的非线性失真的方法包括接收数字信号，基于数字信号产生标称相移信号，基于数字信号和标称相移信号产生建模失真信号，减去建模失真 来自数字信号的信号，并产生补偿信号。

公开(公告)号：US20050141642A1

公开(公告)日：2005-06-30

申请号：US11023317

申请日：2004-12-27

Applicant: Koji Asami

Inventor： Koji Asami

IPC: G01R31/28 ,  H03H17/02 ,  H03H17/06 ,  H03K9/00

CPC classification number: H03H17/0211

Abstract: A detector for detecting a signal to be measured, which is made to discrete with a predetermined discrete frequency, is provided, wherein the detector includes an analysis signal transformer for eliminating aliasing components of the signal to be measured, which are generated due to the discreteness, by transforming the signal to be measured into an analysis signal of which the discrete frequency is lower than that of the signal to be measured, and a base band signal generating unit for frequency-shifting the analysis signal and generating a complex base band signal of the signal to be measured.

Abstract translation: 提供了一种用于检测以预定离散频率离散的待测信号的检测器，其中检测器包括分析信号变换器，用于消除由于离散性而产生的待测信号的混叠分量 通过将待测信号变换成离散频率低于被测信号的分析信号，以及基带信号生成部，对分析信号进行频移，生成复数基带信号 要测量的信号。

公开(公告)号：US5396489A

公开(公告)日：1995-03-07

申请号：US966630

申请日：1992-10-26

Applicant: Robert M. Harrison

Inventor： Robert M. Harrison

IPC: H03M7/30 ,  H03H17/02 ,  H04J4/00 ,  H04L5/26

CPC classification number: H04J4/005 ,  H03H17/0211 ,  H03H17/0251

Abstract: A method and apparatus are provided of transmultiplexing a plurality of signals between a plurality of signal terminals (17 or 29) and a plurality of selected radio frequency channels. The method includes the step of, and apparatus for, frequency translating and filtering the plurality signals between the plurality of selected channels and a polyphase discrete Fourier transform filter bank (16 or 21) within a comb filter (15 or 22). The method further includes the step of frequency division multiplexing the plurality of signals between the plurality of signal terminals and comb filter (15 or 22) within a polyphase discrete Fourier transform filter bank (16 or 21).

Abstract translation: 提供一种在多个信号端子（17或29）和多个选择的射频信道之间对多个信号进行多路复用的方法和装置。 该方法包括在梳状滤波器（15或22）内对多个选定声道之间的多个信号和多相离散付里叶变换滤波器组（16或21）进行频率转换和滤波的步骤和装置。 该方法还包括在多相离散付里叶变换滤波器组（16或21）内的多个信号端和梳状滤波器（15或22）之间频分复用多个信号的步骤。

公开(公告)号：US5323391A

公开(公告)日：1994-06-21

申请号：US27981

申请日：1993-03-08

Applicant: Robert M. Harrison

Inventor： Robert M. Harrison

IPC: H03M7/30 ,  H03H17/02 ,  H04J1/02 ,  H04J4/00 ,  H04L5/26

CPC classification number: H04J4/005 ,  H03H17/0211 ,  H03H17/0251

Abstract: A method and apparatus are provided for use in a multi-channel digital transmitter and receiver. A filtering process is accomplished by conditioning portions of a digitized signal during digital signal processing by integrating, taking the difference of, and multiplying portions of the digitized signal. The filtering process may be used in conjunction with a receiving process to generate a digitized channel signal by conditioning the digitized signal and subsequently Fourier transforming the conditioned portions of the digitized signal. Alternatively, the filtering process may be used in conjunction with a transmitting process by inverse Fourier transforming a plurality of digitized information signals to be transmitted to generating a composite digitized signal and subsequently conditioning the composite digitized signal.

Abstract translation: 提供了一种用于多通道数字发射器和接收器的方法和装置。 通过对数字信号处理中的部分数字化信号进行积分，获取数字化信号的差值和相乘部分来实现滤波处理。 滤波处理可以与接收处理一起使用，以通过调节数字化信号并且随后对数字化信号的调节部分进行傅里叶变换来产生数字化信道信号。 或者，滤波处理可以与发送处理一起使用，通过对要发送的多个数字化信息信号进行逆傅立叶变换以产生复合数字化信号并随后调整复合数字化信号。

公开(公告)号：US4852068A

公开(公告)日：1989-07-25

申请号：US191282

申请日：1988-05-06

Applicant: Antoine Track

Inventor： Antoine Track

IPC: G01V1/36 ,  H03H17/02

CPC classification number: H03H17/0211 ,  G01V1/364 ,  G01V2210/27

Abstract: A method of velocity filtering seismic signals and an installation for implementing the method. A two-dimensional signal g(z,t) is available built up from a set of signals .sub.i (t) for I>i>n as produced by sound wave detectors located at different depths z.sub.1, . . . z.sub.n in a borehole in response to sound waves being emitted from a source as seismic waves, with said detected signals including upgoing waves and downgoing waves. In order to reinforce the upgoing waves (or conversely the downgoing waves) in the signal g(z,t), an operator A is applied recursively to said signal, where: A=1/2[Id+.epsilon..B.H.sub.t.D.sub.z ] where: Id is the identity operator; .epsilon.=+1(or -1); B is normalization factor whose value depends on the signal g(z,t) to which the operator A is applied; H.sub.t is the one-dimensional Hilbert operator relating to the variable t; and D.sub.z is a differentiation operator relating to the variable z.