公开(公告)号：US20050169485A1

公开(公告)日：2005-08-04

申请号：US11043967

申请日：2005-01-28

申请人： Yoshiki Ohta

发明人： Yoshiki Ohta

IPC分类号： G10H1/02 ,  G10H7/00 ,  G10K15/08 ,  G10K15/12 ,  H03G3/00

CPC分类号： G10K15/12

摘要： In the sound field control system, the signal processing unit includes BPFs for dividing the sound signal into a plurality of frequency bands, and APFs for correcting the sound signal by adding a reflection sound pattern to the sound signal. APFs consist of the infinite impulse response type filter, with the delay amount and the gain being variable as coefficients. Once the sound field control processing is executed, the reverberation characteristic of the sound signal passing through BPFs and APFs is measured in the reproduction sound field, and compared with the reverberation characteristic of the original sound field measured in advance. As the result of the comparison, the coefficient showing a property most analogous to the reverberation characteristic of the original sound field is set to APFs in the zone.

摘要翻译： 在声场控制系统中，信号处理单元包括用于将声音信号分割为多个频带的BPF，以及用于通过向声音信号添加反射声音模式来校正声音信号的APF。 APF由无限脉冲响应型滤波器组成，延迟量和增益可变为系数。 一旦执行声场控制处理，在再现声场中测量通过BPF和APF的声音信号的混响特性，并将其与预先测量的原始声场的混响特性进行比较。 作为比较的结果，示出与原始声场的混响特性最相似的特性的系数被设定为该区域中的APF。

公开(公告)号：US09503816B2

公开(公告)日：2016-11-22

申请号：US13822855

申请日：2010-09-14

申请人： Akihiro Iseki ,  Yoshiki Ohta ,  Hiroyuki Ishihara ,  Yoshitomo Imanishi ,  Shinichi Kikuchi

发明人： Akihiro Iseki ,  Yoshiki Ohta ,  Hiroyuki Ishihara ,  Yoshitomo Imanishi ,  Shinichi Kikuchi

IPC分类号： H04S5/02 ,  H04R3/12 ,  H04S7/00 ,  H04S5/00

CPC分类号： H04R3/12 ,  H04S5/005 ,  H04S5/02 ,  H04S7/30

摘要： A surround signal generating device includes: a surround signal generating unit which subtracts a sound signal obtained by multiplying a first gain by an inputted sound signal of a right channel from an inputted sound signal of a left channel so as to generate a surround signal of the left channel, and which subtracts a sound signal obtained by multiplying a second gain by the inputted sound signal of the left channel from the inputted sound signal of the right channel so as to generate a surround signal of the right channel; and a gain setting unit which sets the first gain and the second gain so that a correlation between the surround signal of the left channel and the surround signal of the right channel which are generated by the surround signal generating unit realizes a correlation between surround signals of an actual content having a surround sound.

摘要翻译： 环绕信号发生装置包括：环绕信号生成单元，其从左通道的输入声音信号中减去通过将第一增益乘以右声道的输入声音信号而获得的声音信号，以产生 左声道，并且从所输入的右声道的声音信号中减去通过将左声道的输入声音信号乘以第二增益而获得的声音信号，以产生右声道的环绕信号; 以及增益设定单元，其设定第一增益和第二增益，使得由环绕信号生成单元生成的左声道的环绕信号与右声道的环绕信号之间的相关性实现了环绕信号的环绕信号之间的相关性 具有环绕声的实际内容。

公开(公告)号：US09318095B2

公开(公告)日：2016-04-19

申请号：US13579042

申请日：2010-02-18

申请人： Kensaku Obata ,  Yoshiki Ohta ,  Yoshitomo Imanishi ,  Akihiro Iseki

发明人： Kensaku Obata ,  Yoshiki Ohta ,  Yoshitomo Imanishi ,  Akihiro Iseki

IPC分类号： A61F11/06 ,  G10K11/178

CPC分类号： G10K11/1786 ,  G10K11/178 ,  G10K2210/1282 ,  G10K2210/3056 ,  G10K2210/503

摘要： The disclosed active vibration noise control device is suitable for use in cancelling out vibration noise by outputting control noise from a plurality of speakers. When a vibration noise frequency is in a dip bandwidth, the active vibration noise control device alters the step size parameters used to update the filter coefficient at at least one filter coefficient update means from among a plurality of filter coefficient update means. Thus, the filter coefficient update speed can be retarded in unstable dip bandwidths, enabling loss in silencing effect which occurs during dip characteristics to be appropriately reduced.

摘要翻译： 所公开的主动振动噪声控制装置适用于通过从多个扬声器输出控制噪声来消除振动噪声。 当振动噪声频率处于倾斜带宽时，主动振动噪声控制装置从多个滤波器系数更新装置中改变用于更新至少一个滤波器系数更新装置的滤波器系数的步长参数。 因此，在不稳定的浸渍带宽中可以延迟滤波器系数更新速度，能够适当降低在浸渍特性期间发生的消音效应的损失。

公开(公告)号：US09123325B2

公开(公告)日：2015-09-01

申请号：US13578727

申请日：2010-02-15

申请人： Akihiro Iseki ,  Yoshiki Ohta ,  Yoshitomo Imanishi ,  Kensaku Obata

发明人： Akihiro Iseki ,  Yoshiki Ohta ,  Yoshitomo Imanishi ,  Kensaku Obata

IPC分类号： G10K11/178 ,  H04R3/02

CPC分类号： G10K11/1786 ,  G10K11/178 ,  G10K2210/12821 ,  H04R3/02

摘要： An active vibration noise control device cancels vibration noise by making plural speakers generate control sounds. The active vibration noise control device selects one or more speakers which output the control sounds, from plural speakers, based on a relationship between (1) a first phase difference which corresponds to a difference between phase characteristics of the vibration noise from a vibration noise source to an evaluation point and phase characteristics of the vibration noise from the vibration noise source to a pseudo evaluation point and (2) a second phase difference for each of the plural speakers corresponding to a difference between phase characteristics of the control sound from the speaker to the evaluation point and phase characteristics of the control sound from the speaker to the pseudo evaluation point. Therefore, it stably decreases the vibration noise at the pseudo evaluation point independently of a frequency band of the vibration noise.

摘要翻译： 主动振动噪声控制装置通过使多个扬声器产生控制声音来消除振动噪声。 主动振动噪声控制装置根据（1）对应于来自振动噪声源的振动噪声的相位特性之差的第一相位差之间的关系，从多个扬声器中选择输出控制声音的一个或多个扬声器 涉及从振动噪声源到伪评估点的振动噪声的评估点和相位特性，以及（2）对应于来自扬声器的控制声音的相位特性之间的差异的多个扬声器中的每一个的第二相位差 控制声音从扬声器到伪评估点的评估点和相位特性。 因此，独立于振动噪声的频带，可以稳定地降低伪评估点的振动噪声。

公开(公告)号：US20130279712A1

公开(公告)日：2013-10-24

申请号：US13977253

申请日：2011-01-06

申请人： Manabu Nohara ,  Yoshiki Ohta ,  Kensaku Obata ,  Yusuke Soga

发明人： Manabu Nohara ,  Yoshiki Ohta ,  Kensaku Obata ,  Yusuke Soga

IPC分类号： G10K11/178

CPC分类号： G10K11/178 ,  G10K11/17883 ,  G10K2210/1282 ,  G10K2210/3023 ,  G10K2210/3028

摘要： An active vibration noise control device obtains error signals corresponding to a cancellation error between vibration noise and control sounds generated by multiple speakers, from microphone(s), and actively controls the vibration noise. A basic signal generating unit generates a basic signal based on a vibration noise frequency. An adaptive notch filter unit generates control signals provided to each of the multiple speakers by applying a filter coefficient to the basic signal. A reference signal generating unit generates a reference signal from the basic signal based on multiple transfer characteristics from the multiple speakers to the one or more microphones. A filter coefficient updating unit updates the filter coefficient used by the adaptive notch filter unit so as to minimize the error signals. A controlling unit changes amplitude of the control signals of the speakers based on a similarity between the transfer characteristics and characteristics of the vibration noise.

摘要翻译： 主动振动噪声控制装置从麦克风获得对应于由多个扬声器产生的振动噪声和控制声之间的抵消误差的误差信号，并且主动地控制振动噪声。 基本信号生成单元基于振动噪声频率生成基本信号。 自适应陷波滤波器单元通过对基本信号施加滤波器系数来产生提供给多个扬声器中的每一个的控制信号。 参考信号生成单元基于从多个扬声器到一个或多个麦克风的多个传送特性，从基本信号生成参考信号。 滤波器系数更新单元更新由自适应陷波滤波器单元使用的滤波器系数，以使误差信号最小化。 控制单元基于传递特性和振动噪声的特性之间的相似度来改变扬声器的控制信号的幅度。

公开(公告)号：US20120195439A1

公开(公告)日：2012-08-02

申请号：US13499790

申请日：2009-10-07

申请人： Yoshiki Ohta ,  Manabu Nohara ,  Yusuke Soga ,  Kensaku Obata ,  Akihiro Iseki

发明人： Yoshiki Ohta ,  Manabu Nohara ,  Yusuke Soga ,  Kensaku Obata ,  Akihiro Iseki

IPC分类号： G10K11/16

CPC分类号： G10K11/178 ,  G10K2210/1282 ,  G10K2210/3054

摘要： An active vibration noise control device is preferably used for cancelling a vibration noise by making a speaker generate a control sound. The active vibration noise control device includes a step-size parameter changing unit which changes a step-size parameter used for updating a filter coefficient. The step-size parameter changing unit calculates a parameter-for-change based on the filter coefficient updated by using a basic step-size parameter, and changes the basic step-size parameter by a minimum value in the previously calculated parameter-for-change. Therefore, it is possible to appropriately change the step-size parameter by using the minimum value of the parameter-for-change. Hence, it becomes possible to effectively suppress a divergence of an adaptive notch filter due to a secular change of the speaker.

摘要翻译： 主动振动噪声控制装置优选地通过使扬声器产生控制声音来消除振动噪声。 主动振动噪声控制装置包括改变用于更新滤波器系数的步长参数的步长参数改变单元。 步长参数改变单元基于通过使用基本步长参数更新的滤波器系数来计算变化参数，并且将基本步长参数改变为先前计算的变化参数中的最小值 。 因此，可以通过使用变更参数的最小值来适当地改变步长参数。 因此，可以有效地抑制由于扬声器的长期变化引起的自适应陷波滤波器的发散。

公开(公告)号：US08054726B2

公开(公告)日：2011-11-08

申请号：US11666007

申请日：2005-10-07

申请人： Yoshiki Ohta

发明人： Yoshiki Ohta

IPC分类号： G11B7/00

CPC分类号： G06T1/00 ,  G06K9/6202

摘要： An object of the present invention is to retrieve and process a piece of content to be processed by a simple method at the time of storing content recorded in a CD into an HDD or the like, reading desired content out of the content stored in the HDD from the HDD, and performing a process such as reproduction on the read content.A processor of the invention includes: a storage 1 for storing at least one piece of information so as to be associated with jacket image information of an image related to the content; means for obtaining target medium image data by capturing an image of a jacket of a CD related to the content to be reproduced; means for collating the target medium image data with jacket image information stored in the storage 1 and obtaining the content corresponding to the target medium image data from the storage 1; and means for reproducing the obtained content.

摘要翻译： 本发明的目的在于，在将记录在CD中的内容存储在HDD等中时，通过简单的方法来检索和处理要处理的内容，从存储在HDD中的内容中读出所需内容 并且对所读取的内容执行诸如再现的处理。 本发明的处理器包括：存储器1，用于存储至少一条信息，以便与与内容相关的图像的封套图像信息相关联; 用于通过捕获与要再现的内容相关的CD的外套的图像来获得目标媒体图像数据的装置; 用于将目标介质图像数据与存储在存储器1中的夹克图像信息对照并从存储器1获得与目标介质图像数据相对应的内容的装置; 以及用于再现所获得的内容的装置。

公开(公告)号：US20110268285A1

公开(公告)日：2011-11-03

申请号：US12674361

申请日：2007-08-20

申请人： Yoshiki Ohta ,  Kensaku Obata

发明人： Yoshiki Ohta ,  Kensaku Obata

IPC分类号： H04R29/00

CPC分类号： G01S3/802 ,  G01S3/808 ,  H04S7/301 ,  H04S2400/11 ,  H04S2420/07

摘要： Sound pressure acquisition element integrate by time and convert into logarithms a plurality of inputted sound signals to acquire each sound pressure corresponding to the plurality of sound signals. Normalizing element normalizes each sound pressure acquired by the sound pressure acquisition element. Linear sum calculating element calculates a linear sum of each sound pressure normalized by the normalizing element using a plurality of parameters which differ for each frequency range of the sound signals.

摘要翻译： 声压采集元件通过时间积分，并将多个输入的声音信号转换成对数，以获取与多个声音信号相对应的每个声压。 归一化元件使由声压获取元件获取的每个声压标准化。 线性和计算元件使用针对声音信号的每个频率范围不同的多个参数来计算由归一化元件归一化的每个声压的线性和。

公开(公告)号：US20110142244A1

公开(公告)日：2011-06-16

申请号：US13003669

申请日：2008-07-11

申请人： Kensaku Obata ,  Yoshiki Ohta

发明人： Kensaku Obata ,  Yoshiki Ohta

IPC分类号： H04R5/00

CPC分类号： H04S7/302 ,  H04S1/002 ,  H04S7/40 ,  H04S2400/11 ,  H04S2420/01 ,  H04S2420/07

摘要： A delay amount determination device, sound image localization device, delay amount determination method, and delay amount determination processing program capable of efficiently determining a parameter using fewer test sounds are provided. If the localization direction of the sound image when the test sound is outputted from left and right speakers is specified by the user through an input unit, an operation unit finds the localization angle corresponding to the localization direction. The operation unit, if finding localization angles with two different delay values, compares the difference of the two localization angles with a threshold value. The operation unit, if judging that the difference is larger than the threshold value, changes one of the delay values, finds the localization angle corresponding to the changed delay value, and further compares the difference of the two localization angles with the threshold value.

摘要翻译： 提供了能够使用更少的测试声音有效地确定参数的延迟量确定装置，声像定位装置，延迟量确定方法和延迟量确定处理程序。 如果用户通过输入单元指定了从左右扬声器输出测试声音时的声像的定位方向，则操作单元找到与定位方向对应的定位角。 操作单元如果找到具有两个不同延迟值的定位角，则将两个定位角的差与阈值进行比较。 操作单元如果判断出差大于阈值，则改变其中一个延迟值，找到与改变的延迟值对应的定位角度，并进一步将两个定位角度的差与阈值进行比较。

公开(公告)号：US20110033070A1

公开(公告)日：2011-02-10

申请号：US12446361

申请日：2006-10-25

申请人： Kensaku Obata ,  Yoshiki Ohta

发明人： Kensaku Obata ,  Yoshiki Ohta

IPC分类号： H04R5/02

CPC分类号： H04S1/007

摘要： A sound image localization processing apparatus is provided, in which a surround system is realized by a front speaker with a simple signal process, and the same side localization effect can be given to a plurality of listeners.A sound image localization processing apparatus 100 causes two speakers FR, FL disposed at the right and the left in front of a listener to output sound in accordance with a plurality of supplied sound signals, and gives a sound space with a sense of realism to the listeners.The apparatus 100 comprises: signal processing means 200 for controlling a phase of a right signal indicative of sound signal which should be heard from the right side, and a left signal indicative of sound signal which should be heard from the left side, relative to a listening position of one of the listeners, and localizing a sound image at a side of one of the listeners frequency-band division means 200 for dividing the processed sound signal by a predetermined frequency band, and signal correction means 200 for assigning each listener to the divided frequency band, controlling a phase of the right signal or the left signal which has been signal-processed for a listening position of the other listener, and localizing a sound image at a side of the other listener.

摘要翻译： 提供了一种声像定位处理装置，其中通过具有简单信号处理的前置扬声器实现环绕系统，并且可以向多个收听者提供相同的侧面定位效果。 声像定位处理装置100使两个扬声器FR，FL设置在收听者前面的左右，以根据多个提供的声音信号输出声音，并且向现有的声音空间赋予声音空间 听众。 装置100包括：信号处理装置200，用于控制指示从右侧听到的声音信号的右信号的相位，以及指示应该从左侧听到的声音信号的左信号相对于 收听听众之一的收听位置，并且在听众频率分割装置200之一的一侧定位声音图像，用于将经处理的声音信号除以预定频带，以及信号校正装置200，用于将每个听众分配给 控制对于另一收听者的收听位置进行了信号处理的右信号或左信号的相位，并且使另一收听者侧的声像定位。