公开(公告)号：US07664272B2

公开(公告)日：2010-02-16

申请号：US10554595

申请日：2004-09-02

申请人： Kenichi Terai ,  Kazutaka Abe ,  Isao Kakuhari ,  Yasuhito Watanabe ,  Gempo Ito

发明人： Kenichi Terai ,  Kazutaka Abe ,  Isao Kakuhari ,  Yasuhito Watanabe ,  Gempo Ito

IPC分类号： H04R5/00

CPC分类号： H04S1/005 ,  H04S2420/01

摘要： A sound image control device filters transfer functions H3 and H1 indicating transfer characteristics of a sound from an acoustic transducer (8) to entrances to respective ear canals (1) and (2) as well as filtering transfer functions H4 and H2 from an acoustic transducer (9) to the entrances to the respective ear canals (1) and (2) and generates second transfer functions H6 and H5 indicating transfer characteristics of a sound to the entrances to the respective ear canals (1) and (2) from a target sound source (11) at a location different from the sound sources, the sound image control device being equipped with correction filters (13) and (14) that (i) store characteristic functions E1 and E2 for performing filtering operations on the first transfer functions H1, H2, H3, and H4 and (ii) generate the second transfer functions H5 and H6 from the first transfer functions H1, H2, H3, and H4 using such characteristic functions E1 and E2.

摘要翻译： 声音图像控制装置对表示声音传感器（8）的声音的传送特性的传送功能H3和H1进行滤波，从声传感器（8）进入到各个耳道（1）和（2）以及滤波传递函数H4和H2 （9）到相应的耳道（1）和（2）的入口，并且从目标产生指示到相应的耳道（1）和（2）的入口的声音的传输特性的第二传递函数H6和H5 声音源（11）在与声源不同的位置处，所述声音图像控制装置配备有校正滤波器（13）和（14），其中（i）存储用于对所述第一传递函数进行滤波操作的特征功能E1和E2 H1，H2，H3和H4，以及（ii）使用这些特征函数E1和E2从第一传递函数H1，H2，H3和H4生成第二传递函数H5和H6。

公开(公告)号：US07236838B2

公开(公告)日：2007-06-26

申请号：US09939048

申请日：2001-08-24

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

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

IPC分类号： G06F17/00 ,  H04B1/00

CPC分类号： H04S3/02 ,  H04S7/307 ,  H04S2400/01 ,  H04S2400/07

摘要： A signal processing apparatus includes a decoder for decoding a stream signal so as to generate a digital audio signal of a low frequency effect channel and digital audio signals of first through n'th (n≧2) channels; an adder section for adding the digital audio signal of the low frequency effect channel and the digital audio signal of a specified channel among the first through n'th channels, so as to generate an addition signal; an n number of D/A conversion sections for converting the digital audio signals of the first through n'th channels, excluding the digital audio signal of the specified channel, and the addition signal into n types of analog audio signals; a first signal processing section for generating a digital audio signal of the low frequency effect channel; and a second signal processing section for generating an analog audio signal of the specified channel.

摘要翻译： 信号处理装置包括：解码器，用于解码流信号，以产生低频效应信道的数字音频信号和第一至第n（n> = 2）个信道的数字音频信号; 加法器部分，用于在第一至第n通道中添加低频效果声道的数字音频信号和指定声道的数字音频信号，以产生加法信号; n个D / A转换部分，用于将排除指定通道的数字音频信号的第一至第n个通道的数字音频信号和加法信号转换为n种类型的模拟音频信号; 第一信号处理部分，用于产生低频效应信道的数字音频信号; 以及第二信号处理部分，用于产生指定信道的模拟音频信号。

公开(公告)号：US07106943B2

公开(公告)日：2006-09-12

申请号：US09955356

申请日：2001-09-18

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

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

IPC分类号： H04N5/91 ,  H04N7/00

CPC分类号： G10L19/0208 ,  G10L21/04 ,  H04N19/40 ,  H04N21/42646 ,  H04N21/4334 ,  H04N21/4341 ,  H04N21/4394 ,  H04N21/4398 ,  H04N21/4402

摘要： A coding device includes: a decoder for decoding a first stream signal in which a first video stream including a first video stream information generated by coding a first video signal and a first audio stream including a first audio stream information generated by coding a first audio signal are multiplexed; and a re-encoder for generating, based on the decoded first stream signal, a second video stream including a second video stream information having a bit rate lower than the first video stream information and a second audio stream including a second audio stream information having a bit rate lower than the first audio stream information, and multiplexing the second video stream is and the second audio stream to generate a second stream signal.

公开(公告)号：US06931371B2

公开(公告)日：2005-08-16

申请号：US09933881

申请日：2001-08-21

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

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

IPC分类号： G10L19/02 ,  G10L19/022 ,  G10L19/14 ,  G10L19/16 ,  H04J3/07 ,  H04L7/04 ,  H04L7/08 ,  G10L19/00

CPC分类号： G10L19/167 ,  G10L19/022 ,  H04J3/07 ,  H04L7/04 ,  H04L7/08

摘要： This invention relates to a signal transmission apparatus and a signal transmission method both for transmitting a plurality of pieces of encoded audio information having a plurality of sampling frequencies of F or 1/N×F, which are encoded by the same encoding method, via a digital interface to a signal reception apparatus.

摘要翻译： 本发明涉及一种信号传输装置和信号传输方法，用于通过数字接口发送具有由相同编码方法编码的F或1 / NxF的多个采样频率的多个编码音频信息 信号接收装置。

公开(公告)号：US07613306B2

公开(公告)日：2009-11-03

申请号：US10586905

申请日：2005-02-09

申请人： Shuji Miyasaka ,  Yoshiaki Takagi ,  Kazutaka Abe

发明人： Shuji Miyasaka ,  Yoshiaki Takagi ,  Kazutaka Abe

IPC分类号： H04R5/00

CPC分类号： G10L19/008

摘要： An audio encoder, generating a stereo signal based on a multi-channel signal, includes a downmix unit for downmixing a multi-channel signal exceeding two channels to a two-channel stereo signal, a first coding unit for generating a first coded signal by coding the downmixed stereo signal, a second coding unit for generating a second coded signal by coding information to restore the downmixed stereo signal to a multi-channel signal, a code size calculating unit for calculating a code size of the second coded signal, and a first multiplexing unit for multiplexing the calculated code size in either the first coded signal or the second coded signal. Accordingly a decoder is able to easily extract a coded signal of the multi-channel signal based on the code size, and the decoder reproducing only the downmixed signal can be configured inexpensively.

摘要翻译： 一种音频编码器，其基于多声道信号产生立体声信号，包括用于将超过两声道的多声道信号混合到双声道立体声信号的下混单元，用于通过编码产生第一编码信号的第一编码单元 下混合立体声信号，第二编码单元，用于通过对信息进行编码以将下混合立体声信号恢复为多声道信号来产生第二编码信号;码量计算单元，用于计算第二编码信号的码量， 复用单元，用于在第一编码信号或第二编码信号中复用所计算的码量。 因此，解码器能够基于代码尺寸容易地提取多信道信号的编码信号，并且可以廉价地配置仅再现缩混信号的解码器。

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：US20070162278A1

公开(公告)日：2007-07-12

申请号：US10586905

申请日：2005-02-09

申请人： Shuji Miyasaka ,  Yoshiaki Takagi ,  Kazutaka Abe

发明人： Shuji Miyasaka ,  Yoshiaki Takagi ,  Kazutaka Abe

IPC分类号： G10L19/00

CPC分类号： G10L19/008

摘要： An audio encoder, generating a stereo signal based on a multi-channel signal, includes a downmix unit (100) for downmixing a multi-channel signal exceeding two channels to a two-channel stereo signal, a first coding unit (101) for generating a first coded signal by coding the downmixed stereo signal, a second coding unit (102) for generating a second coded signal by coding information to restore the downmixed stereo signal to a multi-channel signal, a code size calculating unit (103) for calculating a code size of the second coded signal, and a first multiplexing unit (104) for multiplexing the calculated code size in either the first coded signal or the second coded signal. Accordingly a decoder is able to easily extract a coded signal of the multi-channel signal based on the code size, and the decoder reproducing only the downmixed signal can be configured inexpensively.

摘要翻译： 一种基于多声道信号生成立体声信号的音频编码器，包括用于将超过两声道的多声道信号混合到双声道立体声信号的下混单元（100），用于产生 通过编码下混合立体声信号的第一编码信号，用于通过编码信息生成第二编码信号以将下混合立体声信号恢复为多声道信号的第二编码单元（102），用于计算 第二编码信号的代码大小，以及用于在第一编码信号或第二编码信号中复用所计算的代码大小的第一复用单元（104）。 因此，解码器能够基于代码尺寸容易地提取多信道信号的编码信号，并且可以廉价地配置仅再现缩混信号的解码器。

公开(公告)号：US20060274901A1

公开(公告)日：2006-12-07

申请号：US10554595

申请日：2004-09-02

申请人： Kenichi Terai ,  Kazutaka Abe ,  Isao Kakuhari ,  Yasuhito Watanabe ,  Gempo Ito

发明人： Kenichi Terai ,  Kazutaka Abe ,  Isao Kakuhari ,  Yasuhito Watanabe ,  Gempo Ito

IPC分类号： H04R5/00

CPC分类号： H04S1/005 ,  H04S2420/01

摘要： The sound image control device filters transfer functions H3 and H1 indicating transfer characteristics of a sound from an acoustic transducer (8) to entrances to respective ear canals (1) and (2) as well as filtering transfer functions H4 and H2 from an acoustic transducer (9) to the entrances to the respective ear canals (1) and (2) and generates second transfer functions H6 and H5 indicating transfer characteristics of a sound to the entrances to the respective ear canals (1) and (2) from a target sound source (11) at a location different from the sound sources, the sound image control device being equipped with correction filters (13) and (14) that (i) store characteristic functions E1 and E2 for performing filtering operations on the first transfer functions H1, H2, H3, and H4 and (ii) generate the second transfer functions H5 and H6 from the first transfer functions H1, H2, H3, and H4 using such characteristic functions E1 and E2.

摘要翻译： 声音图像控制装置对声音传感器（8）的声音的传送特性的传送函数H 3，H 1进行滤波，并输入到各个耳道（1）和（2）以及滤波传递函数H 4和H 2 从声学换能器（9）到相应的耳道（1）和（2）的入口，并产生指示声音到各个耳道（1）的入口的传播特性的第二传递函数H 6和H 5，以及 （2）从与声源不同的位置处的目标声源（11），所述声音图像控制装置配备有校正滤波器（13）和（14），其（i）存储特征函数E 1和E 2，用于 对第一传递函数H 1，H 2，H 3和H 4执行滤波操作，以及（ii）从第一传递函数H 1，H 2，H 3和H产生第二传递函数H 5和H 6 4使用这种特征函数E 1和E 2。

公开(公告)号：US06381208B1

公开(公告)日：2002-04-30

申请号：US09565950

申请日：2000-05-05

申请人： Kazutaka Abe ,  Tetsuo Iwaki

发明人： Kazutaka Abe ,  Tetsuo Iwaki

IPC分类号： G11B700

CPC分类号： G11B7/13925 ,  G11B7/00736 ,  G11B7/0945 ,  G11B7/1374 ,  G11B2007/0013 ,  G11B2007/13727

摘要： Thickness information and refractive index information of a light transmitting layer are recorded in advance on an optical recording medium. Based on the thickness information and the refractive index information of the light transmitting layer, space between two lens units of an objective lens system is adjusted in an optical recording and reproducing apparatus, so that spherical aberration is adjusted. Accordingly, in the optical recording and reproducing apparatus using two lens units, it becomes possible to correctly record or reproduce the information to and from the optical recording medium.

摘要翻译： 光传输层的厚度信息和折射率信息预先记录在光记录介质上。 基于厚度信息和透光层的折射率信息，在光学记录和再现装置中调整物镜系统的两个透镜单元之间的空间，从而调节球面像差。 因此，在使用两个透镜单元的光学记录和再现设备中，可以将信息正确地记录或再现到光学记录介质上。

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。