专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07502816B2 Signal-processing apparatus and method 有权
标题翻译：信号处理装置及方法
公开(公告)号：US07502816B2
公开(公告)日：2009-03-10
申请号：US10901108
申请日：2004-07-29
申请人： Yoshinori Kumamoto , Kazutaka Abe
发明人： Yoshinori Kumamoto , Kazutaka Abe
IPC分类号： G06F15/00
CPC分类号： G06F17/156 , G06F17/142
摘要： First and second coefficients are fed into a Fast Fourier Transform unit through real number input and imaginary number input portions thereof, respectively, to perform the Fast Fourier Transform of the entered first and second coefficients, thereby producing a frequency-domain coefficient vector. The Fast Fourier Transform of an input signal is performed to transform the input signal into a frequency-domain signal vector. Thereafter, the transformed signal vector is multiplied by the coefficient vector for each element, thereby providing a multiplication result. The Inverse Fast Fourier Transform of the multiplication result renders real number output and imaginary number output portions of the inverse transformation result as first and second series of output signals, respectively.
摘要翻译：第一和第二系数分别通过其实数输入和虚数输入部分被馈送到快速傅里叶变换单元中，以对输入的第一和第二系数执行快速傅里叶变换，由此产生频域系数向量。执行输入信号的快速傅里叶变换以将输入信号变换为频域信号矢量。此后，将变换的信号矢量乘以每个要素的系数矢量，从而提供相乘结果。乘法结果的逆快速傅立叶变换分别将逆变换结果的实数输出和虚数输出部分分别作为第一和第二系列输出信号。

2. 发明申请

US20060031276A1 Signal-processing apparatus and method 有权
公开(公告)号：US20060031276A1
公开(公告)日：2006-02-09
申请号：US10901108
申请日：2004-07-29
申请人： Yoshinori Kumamoto , Kazutaka Abe
发明人： Yoshinori Kumamoto , Kazutaka Abe
IPC分类号： G06F17/14
CPC分类号： G06F17/156 , G06F17/142
摘要： First and second coefficients are fed into a Fast Fourier Transform unit through real number input and imaginary number input portions thereof, respectively, to perform the Fast Fourier Transform of the entered first and second coefficients, thereby producing a frequency-domain coefficient vector. The Fast Fourier Transform of an input signal is performed to transform the input signal into a frequency-domain signal vector. Thereafter, the transformed signal vector is multiplied by the coefficient vector for each element, thereby providing a multiplication result. The Inverse Fast Fourier Transform of the multiplication result renders real number output and imaginary number output portions of the inverse transformation result as first and second series of output signals, respectively.

3. 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。

4. 发明授权

US06751177B1 Signal processor 有权
标题翻译：信号处理器
公开(公告)号：US06751177B1
公开(公告)日：2004-06-15
申请号：US09530540
申请日：2000-06-30
申请人： Kazutaka Abe , Masaharu Matsumoto , Akihisa Kawamura , Masatoshi Shimbo , Naoki Ejima
发明人： Kazutaka Abe , Masaharu Matsumoto , Akihisa Kawamura , Masatoshi Shimbo , Naoki Ejima
IPC分类号： G11B509
CPC分类号： G11B20/00007 , G11B20/00992 , G11B20/10 , G11B20/10527 , G11B2020/10592 , G11B2020/10601 , G11B2220/2562
摘要： When, through a multi-speaker of a DVD audio system, signals are recorded/reproduced using a sampling frequency different for every channel, the quantity of calculation of a filter circuit is reduced. Up-sampling information about whether or not the sampling is carried out before the up-sampling by up-sampling means (2a, 2b) is acquired by up-sampling information detecting means (6). The signal up-sampled is filtered by a halfband filter circuit (3), subjected to loss-less compression, and recorded on a recording medium (8).
摘要翻译：当通过DVD音频系统的多扬声器使用针对每个通道不同的采样频率来记录/再现信号时，滤波器电路的计算量减少。通过上采样信息检测装置（6）获取关于在通过上采样装置（2a，2b）进行上采样之前是否执行采样的上采样信息。上采样的信号由半带滤波器电路（3）滤波，经受无损压缩，并记录在记录介质（8）上。

5. 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。

6. 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。

7. 发明授权

US06304890B1 Exponential calculation device and decoding device 有权
标题翻译：指数计算装置和解码装置
公开(公告)号：US06304890B1
公开(公告)日：2001-10-16
申请号：US09244155
申请日：1999-02-03
申请人： Shuji Miyasaka , Takeshi Fujita , Masahiro Sueyoshi , Akihisa Kawamura , Masaharu Matsumoto , Takashi Katayama , Kazutaka Abe , Kosuke Nishio
发明人： Shuji Miyasaka , Takeshi Fujita , Masahiro Sueyoshi , Akihisa Kawamura , Masaharu Matsumoto , Takashi Katayama , Kazutaka Abe , Kosuke Nishio
IPC分类号： G06F738
CPC分类号： G06F7/552 , G10L19/0212
摘要： A device of the present invention is an exponential calculation device for calculating x{circumflex over ( )}(a/b) (where a and b are each an integer constant) for a given input value of x. The device includes: an input control section for outputting a value of x′, wherein x′=x when x≦A (where A is a threshold value within a variable range of x) and x′=x/2{circumflex over ( )}b when x>A; a core section for outputting a value of z′=x′{circumflex over ( )}(a/b); and an output control section for outputting a value of z, wherein z=z′ when x≦A and z=z′*2{circumflex over ( )}a when x>A.
摘要翻译：本发明的装置是用于为x的给定输入值计算x {circumflex over（）}（a / b）（其中a和b各自为整数常数）的指数计算装置。该装置包括：用于输出x'的值的输入控制部分，其中当x <= A时，x'= x（其中A是x的可变范围内的阈值），x'= x / 2 （）} b当x> A时; 用于输出z'= x'{circumflex over（）}（a / b）的值的核心部分; 以及输出控制部分，用于输出z的值，其中当x> A时z = z'，当x> A时，z = z'* 2 {circumflex over（）} a。

8. 发明授权

US06297754B1 Decoding device 有权
标题翻译：解码设备
公开(公告)号：US06297754B1
公开(公告)日：2001-10-02
申请号：US09538674
申请日：2000-03-30
申请人： Shuji Miyasaka , Takeshi Fujita , Masahiro Sueyoshi , Akihisa Kawamura , Masaharu Matsumoto , Takashi Katayama , Kazutaka Abe , Kousuke Nishio
发明人： Shuji Miyasaka , Takeshi Fujita , Masahiro Sueyoshi , Akihisa Kawamura , Masaharu Matsumoto , Takashi Katayama , Kazutaka Abe , Kousuke Nishio
IPC分类号： H03M740
CPC分类号： H03M7/425
摘要： A decoding device for decoding a data stream includes a decoding table including a first region and a second region; a first decoder; and a second decoder. The first region defines a relationship between first data having a predetermined number of bits and a result of decoding a portion of the first data having bits smaller than or equal to the predetermined number. The second region defines a relationship between concatenated data obtained by concatenating the first data with second data having additional bits and a result of decoding the concatenated data. The first decoder reads the first data from the data stream; decodes the portion of the first data based on the first region; determines whether the decoding of the portion of the first data is completed or not; and when the decoding of the portion of the first data is completed, outputs a result of the decoding of the portion of the first data. When the decoding of the portion of the first data is not completed, the second decoder reads the second data out of the data stream; concatenates the first data with the second data to generate the concatenated data; decodes the concatenated data based on the second region; and outputs a result of the decoding of the concatenated data.
摘要翻译：用于对数据流进行解码的解码装置包括：包括第一区域和第二区域的解码表; 第一解码器; 和第二解码器。第一区域定义具有预定位数的第一数据和对具有小于或等于预定数目的位的第一数据的一部分进行解码的结果之间的关系。第二区域定义了通过将第一数据与具有附加位的第二数据连接获得的级联数据和对级联数据进行解码的结果之间的关系。第一解码器从数据流读取第一数据; 基于第一区域对第一数据的部分进行解码; 确定第一数据的部分的解码是否完成; 并且当第一数据的部分的解码完成时，输出第一数据的部分的解码结果。当第一数据的部分的解码未完成时，第二解码器从数据流中读出第二数据; 将第一数据与第二数据连接以生成级联数据; 基于第二区域解码连接的数据; 并输出级联数据的解码结果。

9. 发明申请

US20110316996A1 CAMERA-EQUIPPED LOUDSPEAKER, SIGNAL PROCESSOR, AND AV SYSTEM 审中-公开
标题翻译：摄像机扬声器，信号处理器和AV系统
公开(公告)号：US20110316996A1
公开(公告)日：2011-12-29
申请号：US13224632
申请日：2011-09-02
申请人： Kazutaka ABE , Shuji Miyasaka , Masaharu Matsumoto , Shinichi Akiyoshi , Takeshi Fujita , Shuhei Yamada
发明人： Kazutaka ABE , Shuji Miyasaka , Masaharu Matsumoto , Shinichi Akiyoshi , Takeshi Fujita , Shuhei Yamada
IPC分类号： H04N7/18
CPC分类号： H04S7/303 , H04R1/028
摘要： An AV system includes a camera-equipped loudspeaker provided with a camera. The camera is united with a loudspeaker body, and captures an image in a direction in which the loudspeaker body outputs a sound. The recognition unit recognizes a location of a listener from an image of the camera, and detects an orientation of the loudspeaker body relative to the listener. The sound control unit performs signal processing on a given sound signal for generating an output signal, and outputs the output signal as an acoustic signal to the loudspeaker body.
摘要翻译： AV系统包括配有相机的配有相机的扬声器。相机与扬声器主体结合，并且沿扬声器主体输出声音的方向拍摄图像。识别单元从相机的图像识别收听者的位置，并且检测扬声器主体相对于收听者的方向。声音控制单元对给定的声音信号执行信号处理以产生输出信号，并将输出信号作为声学信号输出到扬声器主体。

10. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式