公开(公告)号：US08284961B2

公开(公告)日：2012-10-09

申请号：US11995571

申请日：2006-07-10

申请人： Shuji Miyasaka ,  Yosiaki Takagi ,  Takeshi Norimatsu ,  Akihisa Kawamura ,  Kojiro Ono

发明人： Shuji Miyasaka ,  Yosiaki Takagi ,  Takeshi Norimatsu ,  Akihisa Kawamura ,  Kojiro Ono

IPC分类号： H04B1/00

CPC分类号： H04S3/002 ,  G10L19/008 ,  H04S2420/03

摘要： A signal processing device includes a generation unit that generates a second signal from a first signal that is obtained by down mixing two signals; a mixing coefficient determination unit that determines, based on a value L and a value θ, a mixing degree for mixing the first signal and the second signal; and a mixing unit that mixes the first signal and the second signal based on the mixing degree determined by the mixing coefficient determination unit. The generation unit includes a first filter that generates a low frequency band signal in the second signal, from a low frequency band signal in the first signal; and a second filter that generates a high frequency band signal in the second signal, from a high frequency band signal in the first signal. The first filter is a filter unit which, for a complex-number signal, de-correlates an input signal and adds a reverberation component by using a delay unit and an all pass filter, and the processing unit is a filter unit different from the first filter.

摘要翻译： 信号处理装置包括生成单元，该生成单元从通过混合两个信号获得的第一信号产生第二信号; 混合系数确定单元，其基于值L和值来确定用于混合第一信号和第二信号的混合度; 以及混合单元，其基于由混合系数确定单元确定的混合程度来混合第一信号和第二信号。 该生成单元包括从第一信号中的低频带信号在第二信号中产生低频带信号的第一滤波器; 以及第二滤波器，其从第一信号中的高频带信号在第二信号中产生高频带信号。 第一滤波器是滤波器单元，对于复数信号，使输入信号去相关，并通过使用延迟单元和全通滤波器来添加混响分量，并且处理单元是与第一滤波器不同的滤波器单元 过滤。

公开(公告)号：US20090122182A1

公开(公告)日：2009-05-14

申请号：US11995571

申请日：2006-07-10

申请人： Shuji Miyasaka ,  Yosiaki Takagi ,  Takeshi Norimatsu ,  Akihisa Kawamura ,  Kojiro Ono

发明人： Shuji Miyasaka ,  Yosiaki Takagi ,  Takeshi Norimatsu ,  Akihisa Kawamura ,  Kojiro Ono

IPC分类号： H04N7/12

CPC分类号： H04S3/002 ,  G10L19/008 ,  H04S2420/03

摘要： A signal processing device (1) includes: a generation unit (32) which generates a second signal from a first signal that is obtained by downmixing two signals; a mixing coefficient determination unit (40) which determines, based on a value L and a value θ, a mixing degree for mixing the first signal and the second signal, the value L indicating a level ratio between the two signals, and the value θ indicating a phase difference between the two signals; and a mixing unit (50) which mixes the first signal and the second signal based on the mixing degree determined by the mixing coefficient determination unit (40). The generation unit (32) includes: a first filter (302) which generates a low frequency band signal in the second signal, from a low frequency band signal in the first signal; and a second filter (a processing unit 307) which generates a high frequency band signal in the second signal, from a high frequency band signal in the first signal. The first filter (302) is a filter unit which, for a complex-number signal, decorrelates an input signal and adds a reverberation component by using a delay unit (301) and an all pass filter, and the processing unit (307) is a filter unit different from the first filter (302).

摘要翻译： 信号处理装置（1）包括：生成单元（32），其从通过对两个信号进行下混合获得的第一信号产生第二信号; 混合系数确定单元（40），其基于值L和值θ来确定用于混合第一信号和第二信号的混合度，表示两个信号之间的电平比的值L和值θ 表示两个信号之间的相位差; 以及基于由混合系数确定单元（40）确定的混合程度混合第一信号和第二信号的混合单元（50）。 生成单元（32）包括：从第一信号中的低频带信号生成第二信号中的低频带信号的第一滤波器（302） 以及从第一信号中的高频带信号在第二信号中产生高频带信号的第二滤波器（处理单元307）。 第一滤波器（302）是滤波器单元，对于复数信号，通过使用延迟单元（301）和全通滤波器去除相关输入信号并添加混响分量，并且处理单元（307）是 与第一过滤器（302）不同的过滤器单元。

公开(公告)号：US07509179B2

公开(公告)日：2009-03-24

申请号：US09940590

申请日：2001-08-29

申请人： Masaharu Matsumoto ,  Takashi Katayama ,  Masahiro Sueyoshi ,  Kousuke Nishio ,  Kakeshi Fujita ,  Akihisa Kawamura ,  Kazutaka Abe

发明人： Masaharu Matsumoto ,  Takashi Katayama ,  Masahiro Sueyoshi ,  Kousuke Nishio ,  Kakeshi Fujita ,  Akihisa Kawamura ,  Kazutaka Abe

IPC分类号： G06F17/00

CPC分类号： H04L65/1043 ,  H04L29/06027 ,  H04L65/4084 ,  H04L65/604 ,  H04L67/34 ,  H04L69/329 ,  H04N7/163 ,  H04N21/2543 ,  H04N21/25816 ,  H04N21/26225 ,  H04N21/6125 ,  H04N21/6131 ,  H04N21/8106

摘要： A distribution system includes a distribution server device, an acquisition device, and an audio reproduction device, and distributes a program for decoding encoded audio data. The distribution server device sends the program for decoding the encoded audio data. The acquisition device is connected to the distribution server device via a network, and acquires the program and stores it in a removable memory unit. The audio reproduction device decodes the encoded audio data using the program stored in the removable memory unit, and outputs sounds.

公开(公告)号：US07069223B1

公开(公告)日：2006-06-27

申请号：US09593056

申请日：2000-06-13

申请人： Masaharu Matsumoto ,  Takashi Katayama ,  Masahiro Sueyoshi ,  Shuji Miyasaka ,  Takeshi Fujita ,  Akihisa Kawamura ,  Tsukuru Ishito ,  Eiji Otomura ,  Tsuyoshi Nakamura

发明人： Masaharu Matsumoto ,  Takashi Katayama ,  Masahiro Sueyoshi ,  Shuji Miyasaka ,  Takeshi Fujita ,  Akihisa Kawamura ,  Tsukuru Ishito ,  Eiji Otomura ,  Tsuyoshi Nakamura

IPC分类号： G10L19/00

CPC分类号： G10L21/055 ,  G10L19/00

摘要： An audio decoding device is provided for decoding NA (where NA>1) channels of audio signals by a sub-band synthesis operation using sub-band synthesis filter data and sub-band signal data. The decoding device includes a first memory section for storing MA (where MA

摘要翻译： 提供音频解码装置，用于通过使用子频带合成滤波数据的子频带合成操作来解码音频信号的N N（其中N A A 1）个信道， 子带信号数据。 解码装置包括：第一存储器部分，用于存储子带合成滤波器数据的M A（其中M A A N N N A A N）个信道 以及子带信号数据，用于存储N个通道中的至少一些的第二存储器部分，用于接收编码音频数据并将编码的音频数据解码为子带信号数据的操作部分， 以及用于通过M SUB通道切换第一存储器部分和第二存储器部分中的子带合成滤波器数据和子带信号数据的数据传送部分。

公开(公告)号：US06356639B1

公开(公告)日：2002-03-12

申请号：US09058713

申请日：1998-04-10

申请人： Tsukuru Ishito ,  Masaharu Matsumoto ,  Shuji Miyasaka ,  Takeshi Fujita ,  Takashi Katayama ,  Masahiro Sueyoshi ,  Kazutaka Abe ,  Tsuyoshi Nakamura ,  Eiji Otomura ,  Akihisa Kawamura

发明人： Tsukuru Ishito ,  Masaharu Matsumoto ,  Shuji Miyasaka ,  Takeshi Fujita ,  Takashi Katayama ,  Masahiro Sueyoshi ,  Kazutaka Abe ,  Tsuyoshi Nakamura ,  Eiji Otomura ,  Akihisa Kawamura

IPC分类号： H04R500

CPC分类号： H04N5/602 ,  G10L21/04 ,  H04B1/665 ,  H04N21/4398

摘要： A sound image localization device which includes a signal source for outputting an audio signal, a signal divider for dividing the audio signal output from the signal source into two digital audio signals respectively for two channels, and a first signal processor for receiving one of the two digital signals and processing the digital signal so as to localize a virtual sound image using a filter having a first frequency characteristic. In addition, the sound image localization device includes a first D/A converter for converting the digital signal output from the first signal processor into an analog signal, a second D/A converter for receiving the other digital signal obtained from the signal divider and converting the signal into an analog signal, a first control speaker for outputting the audio signal obtained by the first D/A converter to a prescribed space area; and a second control speaker for outputting the audio signal obtained by the second D/A converter to a prescribed space area.

摘要翻译： 一种声像定位装置，包括用于输出音频信号的信号源，分频器，用于将从信号源输出的音频信号分别分成两个数字音频信号分别用于两个通道;以及第一信号处理器，用于接收两个信号中的一个 数字信号并处理数字信号，以便使用具有第一频率特性的滤波器来定位虚拟声像。 此外，声像定位装置包括：第一D / A转换器，用于将从第一信号处理器输出的数字信号转换为模拟信号;第二D / A转换器，用于接收从信号分配器获得的另一数字信号; 将信号转换为模拟信号，第一控制扬声器，用于将由第一D / A转换器获得的音频信号输出到规定的空间区域; 以及第二控制扬声器，用于将由第二D / A转换器获得的音频信号输出到规定的空间区域。

公开(公告)号：US06295319B1

公开(公告)日：2001-09-25

申请号：US09280612

申请日：1999-03-29

申请人： Masahiro Sueyoshi ,  Masaharu Matsumoto ,  Shuji Miyasaka ,  Takeshi Fujita ,  Takashi Katayama ,  Kazutaka Abe ,  Kosuke Nishio ,  Akihisa Kawamura ,  Tsukuru Ishito ,  Tsuyoshi Nakamura ,  Eiji Otomura

发明人： Masahiro Sueyoshi ,  Masaharu Matsumoto ,  Shuji Miyasaka ,  Takeshi Fujita ,  Takashi Katayama ,  Kazutaka Abe ,  Kosuke Nishio ,  Akihisa Kawamura ,  Tsukuru Ishito ,  Tsuyoshi Nakamura ,  Eiji Otomura

IPC分类号： H04B166

CPC分类号： H04N21/4341 ,  H04N21/8106

摘要： A decoding device for decoding a bit stream defined by MPEG2 Audio Multichannel is provided. The bit stream including an MPEG1 compatible area and an MPEG2 multichannel extended area, the MPEG1 compatible area including MPEG1 side information. The decoding device includes: MPEG1 decoding means for decoding the MPEG1 compatible area; MC decoding means for decoding the MPEG2 multichannel extended area; and MC header detection means for executing a first processing including locating a position of a header of the MPEG2 multichannel extended area based on the MPEG1 side information and shifting a read position of the bit stream to the position of the header.

摘要翻译： 提供了解码由MPEG2音频多通道定义的比特流的解码装置。 包括MPEG1兼容区域和MPEG2多通道扩展区域的比特流，MPEG1兼容区域包括MPEG1侧信息。 解码装置包括：用于解码MPEG1兼容区域的MPEG1解码装置; 用于解码MPEG2多声道扩展区域的MC解码装置; 以及MC头部检测装置，用于执行包括基于MPEG1侧信息定位MPEG2多通道扩展区域的头部的位置并将比特流的读取位置移位到头部位置的第一处理。

公开(公告)号：US5700153A

公开(公告)日：1997-12-23

申请号：US582260

申请日：1996-01-03

申请人： Akihisa Kawamura ,  Satoshi Ishikawa ,  Hiroaki Iizuka

发明人： Akihisa Kawamura ,  Satoshi Ishikawa ,  Hiroaki Iizuka

IPC分类号： B60R16/027 ,  B60R16/02 ,  B65H75/36 ,  H01R35/02 ,  H01R35/04

CPC分类号： B60R16/027 ,  H01R35/025

摘要： A relay device includes a first rotor having an inner cylinder, a second rotor having an outer cylinder and a cover attached to the inner cylinder. A flexible flat cable is accommodated in an annular space defined between the inner cylinder and the outer cylinder. The inner cylinder is provided with a shroud part for retaining the end portion of the flexible flat cable therein while the cover is provided with a press part. The press part is arranged so that, when the cover is attached to the inner cylinder, the press part is brought into contact with the shroud part from the outside. Therefore, the press part urges the inner end portion of the cable against the inner cylinder, whereby the inner end portion of the cable can be fixed on the inner cylinder securely.

摘要翻译： 中继装置包括具有内筒的第一转子，具有外筒的第二转子和附接到内筒的盖。 柔性扁平电缆容纳在限定在内筒和外筒之间的环形空间中。 内筒设置有用于将柔性扁平电缆的端部保持在其中的护罩部分，同时盖设有压制部件。 按压部被配置成使得当盖附接到内筒时，挤压部从外部与护罩部接触。 因此，按压部件将电缆的内端部抵靠内筒推动，由此电缆的内端部可以牢固地固定在内筒上。

公开(公告)号：US5164840A

公开(公告)日：1992-11-17

申请号：US400190

申请日：1989-08-28

申请人： Akihisa Kawamura ,  Masaharu Matsumoto ,  Mitsuhiko Serikawa ,  Ryo Tagami ,  Katsuaki Sato ,  Hiroko Yoshida ,  Hikari Hashimoto

发明人： Akihisa Kawamura ,  Masaharu Matsumoto ,  Mitsuhiko Serikawa ,  Ryo Tagami ,  Katsuaki Sato ,  Hiroko Yoshida ,  Hikari Hashimoto

IPC分类号： G11B20/00 ,  G11B27/00 ,  G11B27/10 ,  G11B27/32 ,  G11B27/34 ,  H04N9/802 ,  H04S1/00

CPC分类号： G11B20/00992 ,  G11B27/007 ,  G11B27/107 ,  G11B27/322 ,  G11B27/34 ,  H04N9/802 ,  H04S1/007

摘要： Control codes for controlling processing of an audio signal by a sound field variation circuit to produce desired sound fields are recorded on a monaural track of a video tape concurrent with recording of video and audio signals, and can thereby be subsequently played back for producing sound fields which are respectively synchronized with video images.

公开(公告)号：US5144673A

公开(公告)日：1992-09-01

申请号：US623619

申请日：1990-12-07

申请人： Masaharu Matsumoto ,  Mitsuhiko Serikawa ,  Akihisa Kawamura ,  Hiroko Yoshida ,  Katsuaki Sato

发明人： Masaharu Matsumoto ,  Mitsuhiko Serikawa ,  Akihisa Kawamura ,  Hiroko Yoshida ,  Katsuaki Sato

IPC分类号： G10K15/00 ,  E04B1/99 ,  G10K15/08 ,  H03G5/24

CPC分类号： E04B1/99 ,  G10K15/08

摘要： A reflection sound compression apparatus extracts and compresses, most appropriately with a physical evaluation value, an impulse response of a hall, etc. which is obtained by calculation and actual experiments to reflection sounds in a number required by a sound field controller by using a learning identification method.

公开(公告)号：US4751739A

公开(公告)日：1988-06-14

申请号：US921768

申请日：1986-10-22

申请人： Mitsuhiko Serikawa ,  Akihisa Kawamura ,  Hiroyuki Takewa ,  Katsuaki Sato

发明人： Mitsuhiko Serikawa ,  Akihisa Kawamura ,  Hiroyuki Takewa ,  Katsuaki Sato

IPC分类号： H03G5/02 ,  H03G5/16 ,  H04R3/14 ,  H03G5/00

CPC分类号： H03G5/165

摘要： A digital signal represents a desired amplitude frequency characteristic. A desired transmission characteristic is derived from the desired amplitude frequency characteristic. A sound signal is processed in accordance with the desired transmission characteristic. The processed sound signal is converted by a speaker into corresponding sound. The process of the sound signal corrects and compensates for the original sound pressure frequency characteristic of the speaker and thereby actualizes the desired amplitude frequency characteristic.

摘要翻译： 数字信号表示期望的振幅频率特性。 从期望的幅度频率特性导出期望的传输特性。 根据期望的传输特性来处理声音信号。 经处理的声音信号由扬声器转换为相应的声音。 声音信号的处理校正和补偿扬声器的原始声压频率特性，从而实现期望的振幅频率特性。