公开(公告)号：US08045722B2

公开(公告)日：2011-10-25

申请号：US12149374

申请日：2008-04-30

申请人： Jung-woo Choi ,  Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

发明人： Jung-woo Choi ,  Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

IPC分类号： H04R5/02 ,  H04R25/00

CPC分类号： H04S3/002

摘要： Provided are a method and apparatus for controlling a sound field through an array speaker. The method includes calculating a coefficient of a filter that controls sound pressure of an input signal, based on a sound pressure ratio of a suppression area that suppresses sound emitted from an array speaker and an emphasis area that emphasizes the sound, and sound pressure efficiency in the emphasis area, generating a plurality of output signals that focuses the sound to the emphasis area by filtering the input signal based on the calculated coefficient of the filter, and outputting a sound field controlled sound based on the generated plurality of output signals. Accordingly, a listener in a predetermined direction and distance from the array speaker can clearly hear sound, without wearing an earphone or a headset so as to focus the sound only to the listener.

摘要翻译： 提供了一种通过阵列扬声器来控制声场的方法和装置。 该方法包括基于抑制从阵列扬声器发出的声音的抑制区域的声压比和强调声音的强调区域来计算控制输入信号的声压的滤波器的系数，以及声压效率 强调区域，通过基于计算出的滤波器系数，对输入信号进行滤波，生成多个输出信号，将声音聚焦到加重区域，并根据生成的多个输出信号输出声场受控声音。 因此，与阵列扬声器相距一定方向和距离的收听者可以清晰地听到声音，而不戴耳机或耳机，以将声音聚焦到听众。

公开(公告)号：US20100061571A1

公开(公告)日：2010-03-11

申请号：US12554951

申请日：2009-09-07

申请人： Jung-woo CHOI ,  Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

发明人： Jung-woo CHOI ,  Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

IPC分类号： H04R1/00

CPC分类号： H04R1/288 ,  H04R1/323 ,  H04R1/345 ,  H04R3/12 ,  H04R2201/403

摘要： A directional sound generating apparatus and a directional speaker array including the same are disclosed. The directional sound generating apparatus includes a sound transducer, a reflection plate which is located behind the sound transducer, and a blocking plate which is provided between a front portion and a back portion of the sound transducer.

摘要翻译： 公开了一种定向声产生装置和包括该方向声发声装置的定向扬声器阵列。 方向性声音产生装置包括声音换能器，位于声音传感器后面的反射板，以及设置在声音换能器的前部和后部之间的阻挡板。

公开(公告)号：US20090136045A1

公开(公告)日：2009-05-28

申请号：US12076357

申请日：2008-03-17

申请人： Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

发明人： Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

IPC分类号： H04R5/00

CPC分类号： H04R3/12 ,  H04S2400/11

摘要： A method and apparatus for outputting a sound source signal by using a virtual speaker are provided. The method includes generating a virtual sound source signal delayed by a virtual delay value, instead of by the minimum delay value, according to a sampling rate of an input sound source signal, from the input sound source signal; generating a speaker output signal in which a sampling rate is changed based on the input sound source signal and the generated virtual sound source signal; and outputting the generated speaker output signal. Thus, a non-uniform radiation pattern, which causes distortion in a sound radiated from a speaker array, is removed and the limitation of a frequency band of a controllable sound source signal is overcome, thereby providing a stable sound.

摘要翻译： 提供了一种通过使用虚拟扬声器输出声源信号的方法和装置。 该方法包括根据输入声源信号的采样率，根据输入声源信号产生延迟了虚拟延迟值而不是最小延迟值的虚拟声源信号; 产生基于所输入的声源信号和所生成的虚拟声源信号使采样率改变的扬声器输出信号; 并输出所生成的扬声器输出信号。 因此，消除了从扬声器阵列辐射的声音失真的不均匀辐射图，克服了可控声源信号的频带的限制，从而提供稳定的声音。

公开(公告)号：US20080091416A1

公开(公告)日：2008-04-17

申请号：US11812950

申请日：2007-06-22

申请人： Jung-ho Kim ,  Sang-wook Kim ,  Young-tae Kim ,  Sang-chul Ko

发明人： Jung-ho Kim ,  Sang-wook Kim ,  Young-tae Kim ,  Sang-chul Ko

IPC分类号： G10L19/00

CPC分类号： G10L21/02 ,  G10H1/0091 ,  G10L21/0264 ,  H04R3/04 ,  H04R2430/03

摘要： Provided are a method, medium and apparatus for enhancing an acoustic signal using an auditory property. An acoustic signal is enhanced by generating a plurality of harmonic signals based on a predetermined acoustic signal frequency, selecting harmonic signals, which exist in an area masked by the predetermined harmonic signal, from among the generated plurality of harmonic signals, and outputting harmonic signals remaining after excluding the selected harmonic signals from the generated plurality of harmonic signals. The enhancement results in a bass signal of good sound quality and having a low distortion ratio, without changing the structure of a micro speaker.

摘要翻译： 提供了一种使用听觉特性来增强声信号的方法，介质和装置。 通过基于预定的声信号频率生成多个谐波信号，选择存在于由预定谐波信号屏蔽的区域中的谐波信号，从生成的多个谐波信号中产生多个谐波信号并输出​​剩余的谐波信号，从而增强声信号 在从生成的多个谐波信号中排除所选择的谐波信号之后。 该增强导致低音信号具有良好的音质并且具有低失真比，而不改变微型扬声器的结构。

公开(公告)号：US08125851B2

公开(公告)日：2012-02-28

申请号：US12469917

申请日：2009-05-21

申请人： Sang-chul Ko ,  Young-tae Kim ,  Jung-ho Kim ,  Jung-woo Choi

发明人： Sang-chul Ko ,  Young-tae Kim ,  Jung-ho Kim ,  Jung-woo Choi

IPC分类号： H04B1/02 ,  G03B42/06 ,  H03G5/00

CPC分类号： H04R3/12

摘要： Provided are an apparatus and method for controlling an acoustic radiation pattern output through an array of speakers. The apparatus stores a plurality of filter values for forming a plurality of corresponding control patterns set in advance from an input signal. The apparatus forms a compensation control pattern such that signals output through the array of speakers have an intended pattern in consideration of a filter value of a focusing filter. The apparatus selects at least one of the control patterns set in advance to form the compensation control pattern, and processes the input signal using a filter value corresponding to the selected control pattern.

摘要翻译： 提供了一种用于控制通过扬声器阵列输出的声辐射图案的装置和方法。 该装置存储用于形成从输入信号预先设定的多个对应控制图案的多个滤波器值。 该装置形成补偿控制模式，使得考虑到聚焦滤波器的滤波器值，通过扬声器阵列输出的信号具有期望的模式。 该装置选择预先设定的控制模式中的至少一个以形成补偿控制模式，并且使用与所选择的控制模式对应的滤波器值处理输入信号。

公开(公告)号：US20100123519A1

公开(公告)日：2010-05-20

申请号：US12483298

申请日：2009-06-12

申请人： Jung-ho KIM ,  Sang-chul Ko ,  Young-tae Kim ,  Jung-woo Choi

发明人： Jung-ho KIM ,  Sang-chul Ko ,  Young-tae Kim ,  Jung-woo Choi

IPC分类号： H03F1/26

CPC分类号： H03F1/32 ,  H03F1/30 ,  H03F2200/459

摘要： Disclosed are an apparatus and method for controlling output distortions of an amplifier. The apparatus for controlling output distortions of an amplifier, includes a compensation signal generator to predict a fluctuation of a supply voltage of a power supply using a prediction model which reflects fluctuations characteristics of the supply voltage, and to generate a compensation signal based on the prediction, and a compensator to transform an input signal using the compensating signal to control the output distortions.

摘要翻译： 公开了一种用于控制放大器的输出失真的装置和方法。 用于控制放大器的输出失真的装置包括补偿信号发生器，用于使用反映电源电压的波动特性的预测模型来预测电源的电源电压的波动，并且基于预测产生补偿信号 以及补偿器，用于使用补偿信号来变换输入信号以控制输出失真。

公开(公告)号：US20090141915A1

公开(公告)日：2009-06-04

申请号：US12076277

申请日：2008-03-14

申请人： Sang-chul Ko ,  Young-tae Kim ,  Jung-ho Kim

发明人： Sang-chul Ko ,  Young-tae Kim ,  Jung-ho Kim

IPC分类号： H04R25/00

CPC分类号： H04R1/403 ,  H04R3/005 ,  H04R2430/23

摘要： Provided is a method and apparatus for focusing sound using an array speaker system. The method includes generating a plurality of delayed signals to be focused to a predetermined position from an input signal, filtering a low-frequency signal having a frequency that is lower than a reference frequency from the delayed signals, generating low-frequency focusing signals divided into 2 groups by adjusting a gain of the filtered low-frequency signal, and applying the low-frequency focusing signals divided into the 2 groups to speaker units of the array speaker system at both sides with respect to a center portion of the array speaker system and outputting the low-frequency focusing signals through the speaker units. In this way, the performance of sound focusing for the low-frequency signal can be improved and thus a listener located a predetermined distance from and in a predetermined direction relative to the array speaker system can clearly listen to the low-frequency focusing signals.

摘要翻译： 提供了一种使用阵列扬声器系统对声音进行聚焦的方法和装置。 该方法包括从输入信号产生要聚焦到预定位置的多个延迟信号，从延迟信号中滤出具有低于基准频率的频率的低频信号，产生分为 2组，通过调整滤波的低频信号的增益，并且将相对于阵列扬声器系统的中心部分分成两组的低频聚焦信号施加到两侧的阵列扬声器系统的扬声器单元;以及 通过扬声器单元输出低频聚焦信号。 以这种方式，可以提高对低频信号的声音聚焦的性能，并且因此相对于阵列扬声器系统位于预定方向上和在预定方向上的收听者可以清楚地收听低频聚焦信号。

公开(公告)号：US20080181418A1

公开(公告)日：2008-07-31

申请号：US11889431

申请日：2007-08-13

申请人： Young-tae Kim ,  Sang-wook Kim ,  Jung-ho Kim ,  Sang-chul Ko

发明人： Young-tae Kim ,  Sang-wook Kim ,  Jung-ho Kim ,  Sang-chul Ko

IPC分类号： H04R5/00

CPC分类号： H04S7/302 ,  H04R2499/11 ,  H04S2420/01 ,  H04S2420/03

摘要： A method and apparatus for localizing a sound image of an input signal to a spatial position are provided. The method of localizing a sound image to a spatial position includes: extracting from a head related impulse response (HRIR) measured with respect to changes in the position of a sound source, first information indicating a reflection sound wave reflected by the body of a listener; extracting from the HRIR second information indicating the difference between sound pressures generated in two ears, respectively, when a direct sound wave generated from the position of the sound source arrives at the two ears, respectively, of the listener; extracting third information indicating the difference between times taken by the direct sound wave to arrive at the two ears, respectively, from the HRIR; and localizing a sound image of an input signal to a spatial position by using the extracted information. According to the method and apparatus of the present invention, by using only important information having influence on sound image localization of a virtual sound source extracted from the HRIR, the sound image of the input signal can be localized to a spatial position with a small number of filter coefficients.

摘要翻译： 提供了一种用于将输入信号的声像定位到空间位置的方法和装置。 将声像定位到空间位置的方法包括：从关于声源的位置变化测量的与头相关的脉冲响应（HRIR）提取的第一信息指示由听者的身体反射的反射声波 ; 当从声源的位置产生的直接声波分别到达听众的两只耳朵时，从HRIR中分别提取表示在两只耳朵中产生的声压之间的差异的第二信息; 提取表示从HRIR分别到达两只耳朵的直接声波所用时间之间的差异的第三信息; 以及通过使用所提取的信息将输入信号的声音图像定位到空间位置。 根据本发明的方法和装置，通过仅使用对从HRIR提取的虚拟声源的声像定位有影响的重要信息，输入信号的声像可以被定位到具有小数量的空间位置 的滤波器系数。

公开(公告)号：US20070269061A1

公开(公告)日：2007-11-22

申请号：US11704269

申请日：2007-02-09

申请人： Young-tae Kim ,  Sang-wook Kim ,  Jung-ho Kim ,  Sang-chul Ko

发明人： Young-tae Kim ,  Sang-wook Kim ,  Jung-ho Kim ,  Sang-chul Ko

IPC分类号： H04R5/02

CPC分类号： H04S7/303 ,  H04S2420/01

摘要： An apparatus, method, and medium of removing crosstalk are provided. The apparatus for removing crosstalk in each of audio signals of a plurality of channels, includes: a position recognition unit recognizing the position of a listener; a calculation unit calculating a crosstalk removal function with respect to the recognized position; and a filtering unit removing the crosstalk by using the calculated result.

摘要翻译： 提供了去除串扰的装置，方法和介质。 用于消除多个频道的每个音频信号中的串扰的装置包括：识别听众位置的位置识别单元; 计算单元，相对于所识别的位置计算串扰消除功能; 以及通过使用计算结果来除去串扰的滤波单元。

公开(公告)号：US09008335B2

公开(公告)日：2015-04-14

申请号：US12554951

申请日：2009-09-07

申请人： Jung-woo Choi ,  Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

发明人： Jung-woo Choi ,  Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

IPC分类号： H04R25/00 ,  H04R1/28 ,  H04R1/34 ,  H04R1/32 ,  H04R3/12

CPC分类号： H04R1/288 ,  H04R1/323 ,  H04R1/345 ,  H04R3/12 ,  H04R2201/403

摘要： A directional sound generating apparatus and a directional speaker array including the same are disclosed. The directional sound generating apparatus includes a sound transducer, a reflection plate which is located behind the sound transducer, and a blocking plate which is provided between a front portion and a back portion of the sound transducer.

摘要翻译： 公开了一种定向声产生装置和包括该方向声发声装置的定向扬声器阵列。 方向性声音产生装置包括声音换能器，位于声音传感器后面的反射板，以及设置在声音换能器的前部和后部之间的阻挡板。