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31. 发明申请

US20110153704A1 Filter 有权
标题翻译：过滤
公开(公告)号：US20110153704A1
公开(公告)日：2011-06-23
申请号：US12997233
申请日：2009-06-01
申请人： Kazuo Toraichi , Shuji Kawasaki
发明人： Kazuo Toraichi , Shuji Kawasaki
IPC分类号： G06F17/10
CPC分类号： H03H17/06 , H03H17/0229
摘要： Provided is an FIR filter capable of obtaining predetermined characteristics with a small number of input taps, delay circuits, and multipliers and achieving an improved response and low cost. In a low-pass filter, a band-pass filter, and a high-pass filter based on an FIR filter, a basic filter is configured that gives a basic impulse response function and has a filter coefficient determined from the impulse response function. Filters having different frequency characteristics are configured by changing the time scale or frequency scale of the basic filter. These filters having different frequency characteristics are combined in a cascade form or a step form, thereby constructing an FIR filter having a small number of taps.
摘要翻译：提供了能够以少量输入抽头，延迟电路和乘法器获得预定特性并实现改进的响应和低成本的FIR滤波器。在低通滤波器，带通滤波器和基于FIR滤波器的高通滤波器中，基本滤波器被配置为提供基本脉冲响应函数并具有从脉冲响应函数确定的滤波器系数。具有不同频率特性的滤波器通过改变基本滤波器的时间尺度或频率标度来配置。具有不同频率特性的这些滤波器以级联形式或阶梯形式组合，从而构造具有少量抽头的FIR滤波器。

32. 发明申请

US20050171989A1 DIGITAL FILTER DESIGN METHOD AND DEVICE, DIGITAL FILTER DESIGN PROGRAM, AND DIGITAL FILTER 失效
标题翻译：数字滤波器设计方法和设备，数字滤波器设计程序和数字滤波器
公开(公告)号：US20050171989A1
公开(公告)日：2005-08-04
申请号：US10907943
申请日：2005-04-21
申请人： Yukio Koyanagi
发明人： Yukio Koyanagi
IPC分类号： G06F17/10 , H03H17/02 , H03H17/06
CPC分类号： H03H17/06 , H03H17/0229 , H03H2017/0072
摘要： A digital filter is designed by combining unit filters (L10′, H10′) having a predetermined asymmetric numerical sequence as filter coefficients (H1 to H3). Thus, it is possible to automatically obtain a desired digital filter coefficient only by combining the unit filter. Moreover, a symmetric numerical sequence {−1, 0, 9, 16, 9, 0, −1}/32 is divided at the center into two parts and one of them is used as the asymmetric filter coefficients (H1 to H3). This reduces the number of taps required for the digital filter designed, eliminates use of a window function, and prevents generation of a discretization error in the filter characteristic obtained.
摘要翻译：通过将具有预定的非对称数字序列的单元滤波器（L 10'，H 10'）组合为滤波器系数（H 1至H 3）来设计数字滤波器。因此，可以通过组合单位滤波器来自动获得期望的数字滤波器系数。此外，将对称数字序列{-1,0,9,16,9,0-1} / 32在中心分成两部分，其中一个用作不对称滤波器系数（H 1至H 3 ）。这减少了设计的数字滤波器所需的抽头数量，消除了使用窗口功能，并且防止了所获得的滤波器特性中的离散化误差的产生。

33. 发明授权

US06332000B1 Time division equalizer using system clock signal faster than symbol clock signal in high-speed communication 失效
标题翻译：时分均衡器在高速通信中使用系统时钟信号快于符号时钟信号
公开(公告)号：US06332000B1
公开(公告)日：2001-12-18
申请号：US09074436
申请日：1998-05-07
申请人： Duck Myung Lee
发明人： Duck Myung Lee
IPC分类号： H03H740
CPC分类号： H04L25/03057 , H03H17/0229 , H03H21/0012 , H04L2025/0349 , H04L2025/03617
摘要： An equalizer according to the present invention includes a plurality of switch elements for selecting output data from the delaying elements in response to the odd and even clock signals. The odd and even clock signals are, in time division mode, produced by the system clock signal which is faster than a symbol clock signal. The present invention can reduce the number of multipliers. For example, a convolutional operating part of the equalizer having N flip-flops as a delaying element, only N/2 multipliers are needed.
摘要翻译：根据本发明的均衡器包括多个开关元件，用于响应于奇数和偶数时钟信号从延迟元件中选择输出数据。奇数和偶数时钟信号在时分模式下由比时钟信号快的系统时钟信号产生。本发明可以减少乘法器的数量。例如，均衡器的卷积操作部分具有N个触发器作为延迟元件，仅需要N / 2个乘法器。

34. 发明公开

EP4383566A1 DISPOSITIF ET MÉTHODE DE FILTRAGE 审中-实审
公开(公告)号：EP4383566A1
公开(公告)日：2024-06-12
申请号：EP23209358.3
申请日：2023-11-13
申请人： STMICROELECTRONICS SA
发明人： ANDRE, Eric , VOGT, Lionel
IPC分类号： H03H17/02 , H03H17/06 , H03H17/00
CPC分类号： H03H2017/008120130101 , H03H17/0229 , H03H17/06 , H03H17/0294 , H03H2218/0220130101
摘要： La présente description concerne un émetteur radiofréquence comprenant au moins un circuit de filtrage (400) comprenant : un registre à décalage (402) série/parallèle comprenant une entrée binaire (In) et N sorties binaires Oi, avec N un entier supérieur ou égal à OSR, OSR un entier supérieur ou égal à 2, et i un indice entier allant de 0 à N-1, le registre recevant un signal binaire de donnée (DATA) à une fréquence Fdata sur son entrée (In) et mettant en œuvre des décalages sur ses sorties Oi à une fréquence égale à Fdata*OSR ; un circuit (404) défini par N coefficients Ci fournissant, pour chaque coefficient Ci non nul, un signal SIGi déterminé par le coefficient Ci et par la sortie Oi correspondante ; et un circuit sommateur (408, 502) fournissant une sortie (OUT) égale à la somme des signaux SIGi.

35. 发明公开

EP3048814A1 METHOD AND DEVICE FOR AUDIO SIGNAL PROCESSING 有权转让
标题翻译：用于音频信号处理的方法和设备
公开(公告)号：EP3048814A1
公开(公告)日：2016-07-27
申请号：EP14845972.0
申请日：2014-09-17
申请人： Wilus Institute of Standards and Technology Inc.
发明人： LEE, Taegyu , OH, Hyunoh
IPC分类号： H04S3/00
CPC分类号： H04S5/005 , G10L19/008 , G10L19/0204 , G10L25/48 , H03H17/0229 , H03H17/0248 , H03H17/0266 , H03H17/0272 , H03H21/0012 , H04R5/04 , H04S3/00 , H04S3/002 , H04S3/008 , H04S3/02 , H04S7/30 , H04S2400/01 , H04S2400/03 , H04S2420/03 , H04S2420/07 , H04S2420/11
摘要： The present invention relates to a method and an apparatus for processing a signal, which are used for effectively reproducing an audio signal, and more particularly, to a method and an apparatus for processing a signal, which are used for implementing binaural rendering for reproducing multi-channel or multi-object audio signals in stereo with a low calculation amount.
To this end, provided are a method for processing an audio signal including: receiving multi-audio signals including multi-channel or multi-object signals, each of the multi-audio signals including a plurality of subband signals, and the plurality of subband signals including a signal of a first subband group having low frequencies and a signal of a second subband group having high frequencies based on a predetermined frequency band; receiving at least one parameter corresponding to each subband signal of the second subband group, the at least one parameter being extracted from binaural room impulse response (BRIR) subband filter coefficients corresponding to each subband signal of the second subband group; and performing tap-delay line filtering of the subband signal of the second subband group by using the received parameter and an apparatus for processing an audio signal using the same.
摘要翻译：用于处理信号的方法和设备技术领域本发明涉及用于有效地再现音频信号的信号处理方法和设备，并且更具体地涉及用于处理信号的方法和设备，立体声通道或多对象音频信号，计算量较小。为此，提供了一种用于处理音频信号的方法，该方法包括：接收包括多声道或多声道信号的多声道信号，所述多声道信号中的每一个包括多个子带信号，并且所述多个子带信号包括基于预定频带的具有低频的第一子频带组和具有高频的第二子频带组的信号; 接收对应于所述第二子带组的每个子带信号的至少一个参数，所述至少一个参数是从对应于所述第二子带组的每个子带信号的双耳室内脉冲响应（BRIR）子带滤波器系数中提取的; 并通过使用所接收的参数对第二子带组的子带信号执行抽头延迟线滤波以及使用该装置处理音频信号的装置。

36. 发明公开

EP2530840A1 Efficient sub-band adaptive FIR-filtering 有权
标题翻译： Effiziente自适应子带FIR滤波
公开(公告)号：EP2530840A1
公开(公告)日：2012-12-05
申请号：EP11168083.1
申请日：2011-05-30
申请人： Harman Becker Automotive Systems GmbH
发明人： Christoph, Markus
IPC分类号： H03H17/02 , H03H21/00
CPC分类号： H03H17/0266 , H03H17/0229 , H03H21/0012 , H03H2021/0041
摘要： An audio system with at least one audio channel is disclosed. The audio system includes a digital audio processor in which at least one digital filter is implemented for each channel. The digital filter of each channel comprises: an analysis filter bank (22) configured to receive a broad-band input audio signal and divide the input audio signal into a plurality of sub-bands thus providing sub-band signals having equal bandwidths, the spectra of the sub-band signals composing the spectrum of the input audio signal; a sub-band FIR filter (G 1 ,G 2 ,G 3 ...) for each sub-band, thus providing respective filtered sub-band signals; and a synthesis filter bank (22') configured to receive the filtered sub-band signals and to combine them for providing a broad-band output audio signal, wherein a delay (Δ 1 ,Δ 2 ,Δ 3 ,...) is associated with each sub-band signal, the delay (Δ 1 ) of one of the sub-band signals being applied to the broad-band input audio signal upstream of the analysis filter bank and the residual delays (Δ 2 -Δ 1 ,Δ 3 -Δ 1 ) being applied to the remaining sub-band signals downstream of the analysis filter bank.
摘要翻译：公开了具有至少一个音频通道的音频系统。音频系统包括数字音频处理器，其中为每个通道实现至少一个数字滤波器。每个通道的数字滤波器包括：分析滤波器组（22），被配置为接收宽带输入音频信号，并将输入音频信号划分成多个子带，从而提供具有相等带宽的子带信号，光谱构成输入音频信号的频谱的子带信号; 每个子带的子带FIR滤波器（G 1，G 2，G 3 ...），从而提供相应的滤波后的子带信号; 以及合成滤波器组（22'），其被配置为接收经滤波的子带信号并将它们组合以提供宽带输出音频信号，其中延迟（“1”，“2” 与每个子带信号相关联，一个子带信号的延迟（“1”被施加到分析滤波器组上游的宽带输入音频信号和剩余延迟（“2 - ”1“ 3 - “1”被应用于分析滤波器组的下游的剩余子带信号。

37. 发明授权

EP2530840B1 Efficient sub-band adaptive FIR-filtering 有权
标题翻译：有效的自适应子带FIR滤波
公开(公告)号：EP2530840B1
公开(公告)日：2014-09-03
申请号：EP11168083.1
申请日：2011-05-30
申请人： Harman Becker Automotive Systems GmbH
发明人： Christoph, Markus
IPC分类号： H03H17/02 , H03H21/00
CPC分类号： H03H17/0266 , H03H17/0229 , H03H21/0012 , H03H2021/0041

38. 发明公开

EP2315353A1 FILTER 有权
标题翻译：过滤
公开(公告)号：EP2315353A1
公开(公告)日：2011-04-27
申请号：EP09762379.7
申请日：2009-06-01
申请人： Japan Science and Technology Agency
发明人： TORAICHI, Kazuo , KAWASAKI, Shuji
IPC分类号： H03H17/06
CPC分类号： H03H17/06 , H03H17/0229
摘要： Provided is an FIR filter capable of obtaining predetermined characteristics with a small number of input taps, delay circuits, and multipliers and achieving an improved response and low cost. In a low-pass filter, a band-pass filter, and a high-pass filter based on an FIR filter, a basic filter is configured that gives a basic impulse response function and has a filter coefficient determined from the impulse response function. Filters having different frequency characteristics are configured by changing the time scale or frequency scale of the basic filter. These filters having different frequency characteristics are combined in a cascade form or a step form, thereby constructing an FIR filter having a small number of taps.
摘要翻译：提供一种FIR滤波器，其能够以少量的输入抽头，延迟电路和乘法器获得预定特性，并且实现了改进的响应和低成本。在低通滤波器，带通滤波器和基于FIR滤波器的高通滤波器中，基本滤波器被配置为提供基本脉冲响应函数并具有从脉冲响应函数确定的滤波器系数。具有不同频率特性的滤波器通过改变基本滤波器的时间尺度或频率比例来配置。具有不同频率特性的这些滤波器以级联形式或阶梯形式组合，从而构造具有少量抽头的FIR滤波器。

39. 发明授权

EP1407548B1 FINITE IMPULSE RESPONSE FILTER AND DIGITAL SIGNAL RECEIVING APPARATUS 有权
标题翻译：有限脉冲响应和数字信号接收装置
公开(公告)号：EP1407548B1
公开(公告)日：2008-09-24
申请号：EP03708602.2
申请日：2003-03-14
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： YOMO, Hidekuni Matsushita Electric Indus. Co Ltd. , KUNIEDA, Yoshinori Matsushita Electric IndusCo Ltd , YAMAMOTO, Yuuri Matsushita Electric Indus. Co Ltd.
IPC分类号： H03H17/06
CPC分类号： H03H17/0657 , H03H17/0223 , H03H17/0229 , H03H17/06 , H03H17/0621 , H03H2218/085
摘要： An A/D conversion section (101) performs oversampling on an analog signal at a rate M times the symbol rate to convert into digital signals. A FIR filtering section (102) has two delay-element sequences each with a plurality of delay elements, and the two sequences have different delay directions of input signal, i.e., forward direction and reverse direction. The delay directions of input signal can be switched, and according to the finite impulse response train having such delay-element sequences, convolutional calculation is performed. A phase determining section (103) determines a phase used in making a decision in a decision section (104). The decision section (104) makes a decision on a filtered signal using the phase determined in the phase determining section (103) to generate bit data. A digital signal receiving apparatus is thus achieved which determines a phase with high accuracy without increasing the oversampling number, and performs fast calculation while having a reduced circuitry scale.

40. 发明申请

WO2015041478A1 멀티미디어 신호 처리 방법 및 장치 审中-公开
标题翻译：用于处理多媒体信号的方法和装置
公开(公告)号：WO2015041478A1
公开(公告)日：2015-03-26
申请号：PCT/KR2014/008679
申请日：2014-09-17
申请人： 주식회사 윌러스표준기술연구소
发明人： 오현오 , 이태규
IPC分类号： H04S3/00
CPC分类号： H04S5/005 , G10L19/008 , G10L19/0204 , G10L25/48 , H03H17/0229 , H03H17/0248 , H03H17/0266 , H03H17/0272 , H03H21/0012 , H04R5/04 , H04S3/00 , H04S3/002 , H04S3/008 , H04S3/02 , H04S7/30 , H04S2400/01 , H04S2400/03 , H04S2420/03 , H04S2420/07 , H04S2420/11
摘要： 본 발명은 멀티미디어 신호를 효과적으로 재생하기 위한 신호 처리 방법 및 장치에 관한 것으로서, 더욱 상세하게는 복수의 서브밴드를 갖는 멀티미디어 신호의 필터링을 낮은 연산량으로 구현하기 위한 멀티미디어 신호 처리 방법 및 장치에 관한 것이다. 이를 위해 본 발명은, 복수의 서브밴드를 갖는 멀티미디어 신호를 수신하는 단계; 상기 멀티미디어 신호의 각 서브밴드 신호의 필터링을 위한 적어도 하나의 원형(proto-type) 필터 계수를 수신하는 단계; 상기 원형 필터 계수를 복수의 서브밴드 필터 계수들로 변환하는 단계; 상기 각 서브밴드 필터 계수를 해당 서브밴드 필터 계수에서 추출된 특성 정보를 적어도 부분적으로 이용하여 획득된 필터 차수 정보에 기초하여 절단하는 단계, 적어도 하나의 상기 절단된 서브밴드 필터 계수의 길이는 다른 서브밴드의 절단된 서브밴드 필터 계수의 길이와 다름; 및 상기 각 서브밴드 신호에 대응하는 상기 절단된 서브밴드 필터 계수를 이용하여 상기 멀티미디어 신호를 필터링하는 단계; 를 포함하는 것을 특징으로 하는 멀티미디어 신호 처리 방법 및 이를 이용한 멀티미디어 신호 처리 장치를 제공한다.
摘要翻译：本发明涉及用于多媒体信号的有效重放的信号处理方法和装置，更具体地说，涉及一种用于多媒体信号处理的方法和装置，用于过滤具有多个子带的多媒体信号计算负担。为此，提供了一种用于处理多媒体信号的方法和使用该方法处理多媒体信号的装置，该方法包括以下步骤：接收具有多个子带的多媒体信号; 接收用于过滤所述多媒体信号的每个子带信号的至少一个原型滤波器系数; 将原型滤波器系数转换成多个子带滤波器系数; 基于通过至少部分地使用从对应的子带滤波器系数提取的属性信息获取的滤波器顺序信息截断每个子带滤波器系数，截止的子带滤波器系数中的至少一个的长度不同从其他子带的截断子带滤波器系数的长度; 以及使用对应于每个子带信号的截断子带滤波器系数对多媒体信号进行滤波。

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