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    Sound field controller and control method
    1.
    发明授权
    Sound field controller and control method 失效
    声场控制器和控制方法

    公开(公告)号：US5742688A

    公开(公告)日：1998-04-21

    申请号：US383295

    申请日：1995-02-03

    申请人： Michiko Ogawa ,  Akihisa Kawamura ,  Masaharu Matsumoto ,  Toshihiko Date ,  Tadashi Tamura ,  Yasutoshi Nakama

    发明人： Michiko Ogawa ,  Akihisa Kawamura ,  Masaharu Matsumoto ,  Toshihiko Date ,  Tadashi Tamura ,  Yasutoshi Nakama

    IPC分类号： G10K15/02 ,  H04R5/00

    CPC分类号： G10K15/02

    摘要： A sound field controller of the invention reproduces a sound field which provides a distance perspective depending on a position of a sound image for a listener. The sound field controller includes: an A/D converter; a signal processing section for processing the digital signal using predetermined parameters, and generating a sound signal; an input device for inputting conditions which include a position of a sound image to be localized and a distance from a listener; a parameter controller for setting the parameters in the signal processing section so that the sound signal has characteristics in accordance with the input conditions; a D/A converter; and a reproducing unit for amplifying and reproducing the signal output from the D/A converter.

    摘要翻译： 本发明的声场控制器再现根据收听者的声音图像的位置提供距离透视的声场。 声场控制器包括：A / D转换器; 信号处理部分，用于使用预定参数处理数字信号，并产生声音信号; 用于输入包括要被本地化的声像的位置和与收听者的距离的条件的输入装置; 参数控制器，用于设置信号处理部分中的参数，使得声音信号具有根据输入条件的特性; 一个D / A转换器; 以及用于放大和再现从D / A转换器输出的信号的再现单元。

    Signal processing apparatus, signal processing method, program and recording medium
    2.
    发明授权
    Signal processing apparatus, signal processing method, program and recording medium 有权
    信号处理装置，信号处理方法，程序和记录介质

    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。

    Audio decoding device for decoding coded audio information with multiple channels
    5.
    发明授权
    Audio decoding device for decoding coded audio information with multiple channels 失效
    用于解码具有多个声道的编码音频信息的音频解码装置

    公开(公告)号：US06460016B1

    公开(公告)日：2002-10-01

    申请号：US09685234

    申请日：2000-10-10

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

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

    IPC分类号： G10L2104

    CPC分类号： H04B1/665 ,  H04H20/89 ,  H04H40/18

    摘要： An audio decoding device for decoding audio information with multiple channels includes a coded information memory section for storing the coded audio information; an information transmission section for reading the coded audio information stored at an arbitrary position in the coded information memory section; and an audio decoding section for decoding the coded audio information read by the information transmission section and outputting the resultant audio information in accordance with a time axis, wherein the information transmission section includes a buffer memory for retaining an address of an actual pointer for reading the coded audio information in the coded information memory section so as not to be reread, an address of a temporary pointer for reading the coded audio information in the coded information memory section so as to be reread, actual pointer data read by the actual pointer, and temporary pointer data read by the temporary pointer.

    摘要翻译： 用于对具有多个通道的音频信息进行解码的音频解码装置包括用于存储编码的音频信息的编码信息存储部分; 信息发送部，用于读取存储在编码信息存储部中的任意位置的编码音频信息; 以及音频解码部分，用于对由信息传输部分读取的编码音频信息进行解码，并根据时间轴输出所得到的音频信息，其中信息传输部分包括缓冲存储器，用于保存用于读取的实际指针的地址 编码信息存储部分中的编码音频信息不被重新读取，用于读取编码信息存储部分中的编码音频信息以便重新读取的临时指针的地址，由实际指针读取的实际指针数据，以及 由临时指针读取的临时指针数据。

    Sound reproduction system and a sound reproduction method
    6.
    发明授权
    Sound reproduction system and a sound reproduction method 失效
    声音再现系统和声音再现方法

    公开(公告)号：US5617478A

    公开(公告)日：1997-04-01

    申请号：US225602

    申请日：1994-04-11

    申请人： Ryou Tagami ,  Takeshi Norimatsu ,  Masaharu Matsumoto ,  Mikio Oda ,  Mitsuhiko Serikawa ,  Akihisa Kawamura ,  Hiroko Numazu

    发明人： Ryou Tagami ,  Takeshi Norimatsu ,  Masaharu Matsumoto ,  Mikio Oda ,  Mitsuhiko Serikawa ,  Akihisa Kawamura ,  Hiroko Numazu

    IPC分类号： H03G5/00 ,  H04R5/04 ,  H04R29/00 ,  H03G3/00

    CPC分类号： H04R5/04 ,  H03G5/005

    摘要： A sound reproduction system for automatically conducting a tone control for an audio signal according to the present invention includes: an input terminal for inputting an audio signal; a judgment circuit for determining a ratio between a stereophonic signal component and a monophonic signal component of the input audio signal and for outputting a judgment signal; a signal processing section for receiving the input audio signal and processing the input audio signal so as to generate an output signal having uniform transmission characteristics irrespective of the listening position; an adder for receiving the input audio signal and the output signal and for adding the input audio signal with the output signal at a certain addition ratio based on the judgment signal so as to generate an added signal; and a loudspeaker for receiving the added signal and for reproducing the added signal in a plurality of positions.

    摘要翻译： 根据本发明的用于自动进行音频信号的音调控制的声音再现系统包括：用于输入音频信号的输入端; 用于确定所述输入音频信号的立体声信号分量和单声道信号分量之间的比率并用于输出判断信号的判断电路; 信号处理部分，用于接收输入音频信号并处理输入音频信号，以产生具有均匀传输特性的输出信号，而与收听位置无关; 加法器，用于接收所述输入音频信号和所述输出信号，并且用于基于所述判断信号以一定的相加比例将所述输入音频信号与所述输出信号相加以产生相加信号; 以及用于接收所附加的信号并用于在多个位置再现附加的信号的扬声器。