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1. 发明授权

US06823310B2 Audio signal processing device and audio signal high-rate reproduction method used for audio visual equipment 失效
标题翻译：用于视听设备的音频信号处理设备和音频信号高速率再现方法
公开(公告)号：US06823310B2
公开(公告)日：2004-11-23
申请号：US09994962
申请日：2001-11-27
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： G10L1900
CPC分类号： H04N5/602 , G10L21/04 , H04B1/665 , H04N21/4398
摘要： An audio decoding apparatus is provided for receiving a bit stream on a block-by-block basis, decoding one block of the bit stream to form decoded audio data for a plurality of channels, and storing the decoded audio data for each of the plurality of channels in a memory device, thereby down-mixing the decoded audio data for each of the plurality of channels. The audio decoding apparatus includes an operation section for down-mixing the decoded audio data for each of the plurality of channels corresponding to a first block of the bit stream in the memory section while a second block of the bit stream is decoded.
摘要翻译：提供音频解码装置，用于逐块地接收比特流，解码比特流的一个块以形成用于多个信道的解码音频数据，并且存储用于多个信道中的每一个的解码音频数据通道，从而对多个通道中的每个通道的解码音频数据进行下混。音频解码装置包括一个操作部分，用于对与解码存储器部分中的比特流的第一块相对应的每个频道的解码音频数据进行下混合，同时解码比特流的第二块。

2. 发明授权

US06356639B1 AUDIO DECODING APPARATUS, SIGNAL PROCESSING DEVICE, SOUND IMAGE LOCALIZATION DEVICE, SOUND IMAGE CONTROL METHOD, AUDIO SIGNAL PROCESSING DEVICE, AND AUDIO SIGNAL HIGH-RATE REPRODUCTION METHOD USED FOR AUDIO VISUAL EQUIPMENT 失效
标题翻译：音频解码设备，信号处理设备，声像图像本地化设备，声音图像控制方法，音频信号处理设备和用于音频视觉设备的音频信号高速率再现方法
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。

3. 发明授权

US06295319B1 Decoding device 有权
标题翻译：解码设备
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。

4. 发明授权

US07069223B1 Compressed code decoding device and audio decoding device 有权
标题翻译：压缩码解码装置和音频解码装置
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。

5. 发明授权

US6118821A Compressed code decoding device and audio decoding device 失效
标题翻译：压缩码解码装置和音频解码装置
公开(公告)号：US6118821A
公开(公告)日：2000-09-12
申请号：US080133
申请日：1998-05-15
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 , G10L21/055 , H04H20/00 , H04N7/12 , H04N7/26 , H04S3/00
CPC分类号： G10L21/055 , G10L19/00
摘要： A compressed code decoding device of the present invention includes: a decoding section for receiving a plurality of groups of blocks of compressed codes and decoding each of the blocks of compressed codes; a buffer section for storing decoded signals decoded by the decoding section; a reproduction time acquisition section for acquiring a reproduction time at which to reproduce a predetermined one of the blocks; an output section for externally outputting the decoded signals stored in the buffer section; a detection section for detecting that the predetermined block of compressed codes has been decoded and output via the output section; an addition section for, at a time when the detection section detects that the predetermined block has been output, adding a time required for reproducing the predetermined block to the reproduction time acquired by the reproduction time acquisition section so as to produce a synchronization time; a synchronization section for comparing the synchronization time produced by the addition section and a current time so as to determine whether the synchronization time is ahead of or behind the current time; a code discarding section for, if the synchronization section determines that the synchronization time is ahead of the current time, discarding either compressed codes of one of the blocks next to the predetermined block or compressed codes of one of the groups next to the group including the predetermined block; and a reproduction delay section for, if the synchronization section determines that the synchronization time is behind the current time, delaying output of either decoded signals of the compressed codes of one of the blocks next to the predetermined block or decoded signals of the compressed codes of one of the groups next to the group including the predetermined block.
摘要翻译：本发明的压缩码解码装置包括：解码部分，用于接收多组压缩码块，并对每个压缩码块进行解码; 缓冲部，用于存储由解码部解码的解码信号; 再现时间获取部分，用于获取再现预定的一个块的再现时间; 输出部分，用于从存储在缓冲器部分中的外部输出解码信号; 检测部分，用于检测所述预定的压缩代码块是否经由所述输出部分被解码和输出; 一个加法部分，用于在检测部分检测到预定块已被输出时，将再现预定块所需的时间与由再现时间获取部分获得的再现时间相加以产生同步时间; 同步部分，用于比较由加法部分产生的同步时间和当前时间，以便确定同步时间是否在当前时间之前或之后; 代码丢弃部分，用于如果同步部分确定同步时间在当前时间之前，则丢弃与预定块相邻的块中的一个块的压缩代码或者包括预定块以及再现延迟部分，如果同步部分确定同步时间在当前时间之后，则将预定块之后的块之一的压缩码的解码信号的输出或压缩码的解码信号延迟包括预定块的组旁边的组之一。

6. 发明授权

US06460016B1 Audio decoding device for decoding coded audio information with multiple channels 失效
标题翻译：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。

7. 发明授权

US06233562B1 Audio decoding device and signal processing device for decoding multi-channel signals with reduced memory requirements 失效
标题翻译：用于解码多通道信号的音频解码装置和信号处理装置，具有减少的存储要求
公开(公告)号：US06233562B1
公开(公告)日：2001-05-15
申请号：US08986734
申请日：1997-12-08
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 coded 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.
摘要翻译：用于对具有多个频道的编码音频信息进行解码的音频解码装置包括用于存储编码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，用于对由信息发送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。

8. 发明授权

US06904089B1 Encoding device and decoding device 有权
标题翻译：编码设备和解码设备
公开(公告)号：US06904089B1
公开(公告)日：2005-06-07
申请号：US09472401
申请日：1999-12-27
申请人： Masahiro Sueyoshi , Masaharu Matsumoto , Kazutaka Abe , Kousuke Nishio , Takashi Katayama , Akihisa Kawamura , Shuji Miyasaka , Takeshi Fujita
发明人： Masahiro Sueyoshi , Masaharu Matsumoto , Kazutaka Abe , Kousuke Nishio , Takashi Katayama , Akihisa Kawamura , Shuji Miyasaka , Takeshi Fujita
IPC分类号： G10L19/022 , G10L19/16 , H04B1/00 , H04B1/66 , H04N21/233 , H04N21/439
CPC分类号： H04N21/4392 , G10L19/022 , G10L19/167 , H04N21/233
摘要： An encoding device includes an encoding section for generating hit streams having a variable frame length from an input audio signal, a maximum frame length of the bit streams being fixed; a storage section for storing the bit streams generated by the encoding section; and a transfer section for transferring the bit streams at a prescribed transfer rate. The storage section includes a buffer having a capacity corresponding to at least a value which is obtained by subtracting an amount of the bit streams transferable in one frame time period at a minimum possible transfer rate from a value of twice the maximum frame length.
摘要翻译：编码装置包括编码部分，用于从输入音频信号产生具有可变帧长度的命中流，所述比特流的最大帧长度被固定; 存储部，用于存储由编码部生成的比特流; 以及用于以规定的传送速率传送比特流的传送部分。存储部分包括缓冲器，其具有对应于至少一个值的缓冲器，该值通过从最大帧长度的两倍的值以最小可能传送速率减去在一个帧时间段中可传送的比特流的量而获得的值。

9. 发明授权

US06631352B1 Decoding circuit and reproduction apparatus which mutes audio after header parameter changes 有权
标题翻译：标题参数改变后，使音频静音的解码电路和再现设备
公开(公告)号：US06631352B1
公开(公告)日：2003-10-07
申请号：US09476897
申请日：2000-01-03
申请人： Takeshi Fujita , Takashi Katayama , Masahiro Sueyoshi , Shuji Miyasaka , Masaharu Matsumoto , Akihisa Kawamura , Kazutaka Abe , Kousuke Nishio
发明人： Takeshi Fujita , Takashi Katayama , Masahiro Sueyoshi , Shuji Miyasaka , Masaharu Matsumoto , Akihisa Kawamura , Kazutaka Abe , Kousuke Nishio
IPC分类号： G10L2100
CPC分类号： G10L19/167 , G11B20/10527
摘要： A decoding circuit, for receiving a bit stream including an encoded audio signal and header information used for-decoding the encoded audio signal, and decoding the encoded audio signal based on the header information, includes a header analysis section for outputting at least one decoding parameter obtained from the header information and decoding parameter change information indicating whether or not the at least one decoding parameter has been changed; a signal processing section for decoding the encoded audio signal, based on the at least one decoding parameter, into a decoded signal and outputting the decoded signal; an automatic mute processing section for executing automatic mute on the decoded signal after the at least one decoding parameter is changed; and an output section for outputting the decoded signal output from the automatic mute processing section.
摘要翻译：一种解码电路，用于接收包括编码音频信号的位流和用于解码编码音频信号的标题信息，以及基于标题信息对编码音频信号进行解码的标题分析部分，用于输出至少一个解码参数从表示是否已经改变了至少一个解码参数的标题信息和解码参数改变信息获得; 信号处理部分，用于将编码音频信号基于至少一个解码参数解码为解码信号并输出解码信号; 自动静音处理部分，用于在所述至少一个解码参数改变之后对所述解码信号执行自动静音; 以及输出部分，用于输出从自动静音处理部分输出的解码信号。

10. 发明授权

US06546105B1 Sound image localization device and sound image localization method 失效
标题翻译：声像定位装置和声像定位方法
公开(公告)号：US06546105B1
公开(公告)日：2003-04-08
申请号：US09431092
申请日：1999-11-01
申请人： Takashi Katayama , Masaharu Matsumoto , Masahiro Sueyoshi , Shuji Miyasaka , Takeshi Fujita , Akihisa Kawamura , Kazutaka Abe , Kousuke Nishio
发明人： Takashi Katayama , Masaharu Matsumoto , Masahiro Sueyoshi , Shuji Miyasaka , Takeshi Fujita , Akihisa Kawamura , Kazutaka Abe , Kousuke Nishio
IPC分类号： H04R500
CPC分类号： H04R5/00
摘要： A sound image localization apparatus comprises a signal source for outputting an audio signal; a localization angle input unit for receiving an angle of a sound image to be localized; a coefficient control unit for receiving sound image localization angle information from the localization angle input unit, reading coefficients from a coefficient memory in accordance with the information, and outputting the coefficients; first, second, and third multipliers for multiplying the audio signal output from the signal source by using first, second, and third coefficients output from the coefficient control means, respectively; a first signal processing unit for receiving the output from the second multiplier, and processing it by using a filter having a predetermined first frequency response; a second signal processing unit for receiving the output from the second multiplier, and processing it by using a filter having a predetermined second frequency response; a first adder for adding the output from the first multiplier and the output from the first signal processing unit to output the sum; a second adder for adding the output from the third multiplier and the output from the second signal processing unit to output the sum; a first output unit for outputting the output of the first adder; and a second output unit for outputting the output of the second adder.
摘要翻译：声像定位装置包括用于输出音频信号的信号源; 定位角输入单元，用于接收要定位的声像的角度; 系数控制单元，用于从定位角输入单元接收声像定位角度信息，根据该信息从系数存储器读取系数，并输出系数; 第一，第二和第三乘法器，分别通过使用从系数控制装置输出的第一，第二和第三系数来乘以从信号源输出的音频信号; 第一信号处理单元，用于接收来自第二乘法器的输出，并通过使用具有预定的第一频率响应的滤波器对其进行处理; 第二信号处理单元，用于接收来自第二乘法器的输出，并通过使用具有预定的第二频率响应的滤波器进行处理; 第一加法器，用于将来自第一乘法器的输出和来自第一信号处理单元的输出相加以输出和; 第二加法器，用于将来自第三乘法器的输出和来自第二信号处理单元的输出相加以输出和; 第一输出单元，用于输出第一加法器的输出; 以及第二输出单元，用于输出第二加法器的输出。

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