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公开(公告)号：US08694326B2
公开(公告)日：2014-04-08
申请号：US13590243
申请日：2012-08-21
申请人： Shuji Miyasaka , Kosuke Nishio , Ichiro Kawashima
发明人： Shuji Miyasaka , Kosuke Nishio , Ichiro Kawashima
摘要： A communication terminal includes a decoder which decodes an input bitstream received from another communication terminal, to generate an output audio signal and outputs the generated output audio signal to a speaker; and an echo canceller which obtains an input audio signal representing sound captured by a microphone placed in a space to which the speaker outputs the sound, and removes, for respective subbands, an echo component included in the obtained input audio signal and corresponding to the output audio signal, to generate an audio signal for transmission. An encoder codes the audio signal for transmission to generate an output bitstream and transmits the generated output bitstream to another communication terminal; and a control unit controls, for the respective subbands, echo cancellation processing according to a reproduction band of at least one of the output audio signal and the audio signal for transmission.
摘要翻译： 通信终端包括解码器，其对从另一通信终端接收的输入比特流进行解码，以产生输出音频信号，并将所生成的输出音频信号输出到扬声器; 以及回波消除器，其获得表示放置在扬声器输出声音的空间中的麦克风捕获的声音的输入音频信号，并且针对各个子带去除包含在所获得的输入音频信号中并对应于输出的回波分量 音频信号，以产生用于传输的音频信号。 编码器对音频信号进行编码以进行传输以产生输出比特流，并将生成的输出比特流发送到另一通信终端; 并且控制单元根据输出音频信号和音频信号中的至少一个的再现频带对各个子带进行回波消除处理，以进行传输。
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12.发明授权公开(公告)号：US07693722B2
公开(公告)日：2010-04-06
申请号：US11168464
申请日：2005-06-29
CPC分类号： G10L19/167
摘要： An audio decoding apparatus for decoding and reproducing a plurality of compressed audio streams simultaneously without sound interruption, even when the number of samples per frame is different. The audio decoding apparatus includes: a first and second audio decoder which decode two inputted compressed audio streams, and output audio data; a first and second intermediate buffer which temporarily hold the outputted audio data; a first and second audio output unit which convert the audio data into audio signals and output such audio signals; an output control unit which reads the audio data from the first and second intermediate buffer, and transmits the audio data to the first and second audio output unit. The output control unit repeats the reading and transmission of either the same number of samples of audio data or the number of samples of audio data for the same amount of transmission time.
摘要翻译： 一种用于同时解码和再现多个压缩音频流而没有声音中断的音频解码装置，即使每帧的采样数量不同也是如此。 音频解码装置包括：解码两个输入的压缩音频流并输出音频数据的第一和第二音频解码器; 临时保存所输出的音频数据的第一和第二中间缓冲器; 第一和第二音频输出单元，其将音频数据转换成音频信号并输出这样的音频信号; 输出控制单元，其从第一和第二中间缓冲器读取音频数据，并将音频数据发送到第一和第二音频输出单元。 输出控制单元重复读取和发送音频数据的相同数量的样本或相同量的传输时间的音频数据的样本数量。
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公开(公告)号：US20060080109A1
公开(公告)日：2006-04-13
申请号：US11168464
申请日：2005-06-29
IPC分类号： G10L21/00
CPC分类号： G10L19/167
摘要： The present invention provides an audio decoding apparatus which can decode and reproduce a plurality of compressed audio streams simultaneously without sound interruption, even when the number of samples per frame is different. The audio decoding apparatus includes: a first and second audio decoder which decode two inputted compressed audio streams, and output audio data; a first and second intermediate buffer which temporarily hold the outputted audio data; a first and second audio output unit which convert the audio data into audio signals and output such audio signals; an output control unit which reads the audio data from the first and second intermediate buffer, and transmits the audio data to the first and second audio output unit. The output control unit repeats the reading and transmission of either the same number of samples of audio data or the number of samples of audio data for the same amount of transmission time, from the first and second intermediate buffer to the first and second output unit.
摘要翻译： 本发明提供了一种音频解码装置，即使当每帧的采样数量不同时，也可以同时解码和再现多个压缩音频流而没有声音中断。 音频解码装置包括：解码两个输入的压缩音频流并输出音频数据的第一和第二音频解码器; 临时保存所输出的音频数据的第一和第二中间缓冲器; 第一和第二音频输出单元，其将音频数据转换成音频信号并输出这样的音频信号; 输出控制单元，其从第一和第二中间缓冲器读取音频数据，并将音频数据发送到第一和第二音频输出单元。 输出控制单元重复从第一和第二中间缓冲器到第一和第二输出单元的相同数量的音频数据样本或相同数量的传输时间的音频数据的样本数量的读取和传输。
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14.发明授权Information recording medium, data sorting device, and data reproduction device 有权信息记录介质，数据分类装置和数据再现装置公开(公告)号：US08306384B2
公开(公告)日：2012-11-06
申请号：US11659038
申请日：2005-08-17
IPC分类号： H04N5/765
CPC分类号： G11B20/1217 , G11B27/105 , G11B27/3027 , H04N5/775 , H04N5/85 , H04N9/8042 , H04N9/8063 , H04N9/8205 , H04N9/8227
摘要： The present invention provides an information recording medium in which an access unit including basic data and extension data is recorded, so as to allow a decoder that decodes only basic data to process the access unit which includes the basic data and the extension data for the next generation.The information recording medium is an information recording medium on which a stream is recorded, the stream having plural access units and including at least one of video and audio, wherein each of the access units has basic data and extension data related to the basic data, the basic data is data that can be decoded into a completed state without requiring the extension data, and the extension data is data for improving the quality of data generated from the basic data, and information indicating that the extension data is included in each of the access units is recorded in an area, included in the access unit, which cannot be identified by the decoder which decodes only the basic data.
摘要翻译： 本发明提供了一种信息记录介质，其中记录了包括基本数据和扩展数据的访问单元，以便允许仅解码基本数据的解码器处理包括基本数据和下一个扩展数据的访问单元 代。 信息记录介质是其上记录有流的信息记录介质，该流具有多个存取单元并且包括视频和音频中的至少一个，其中每个访问单元具有与基本数据相关的基本数据和扩展数据， 基本数据是可以解码成完成状态而不需要扩展数据的数据，扩展数据是用于提高从基本数据生成的数据的质量的数据，以及指示扩展数据被包括在每个 访问单元被记录在包括在访问单元中的区域中，该区域不能由只解码基本数据的解码器识别。
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公开(公告)号：US20070174061A1
公开(公告)日：2007-07-26
申请号：US10590009
申请日：2005-12-12
IPC分类号： G10L19/00
CPC分类号： G10L19/035
摘要： In a compression process (S10), each allocation table is converted by reducing each group of subbands sharing a common pattern to one (S11), and the allocation tables are further converted into a single table (S12). Then, offset values each corresponding to one subband are defined in a table (S13), and these tables are stored in the memory (S14). In a decoding process (S20), an offset value is obtained using a subband as a key (S21), and the number of quantization steps is obtained from a pattern read out from the table using the offset value (S22).
摘要翻译： 在压缩处理（S10）中，通过将共享共同模式的各组子带减少为1来转换每个分配表（S 11），并且将分配表进一步转换为单个表（S12）。 然后，在表（S13）中定义了与一个子带对应的偏移值，并将这些表存储在存储器中（S14）。 在解码处理（S20）中，使用子带作为键来获得偏移值（S21），并且从使用偏移值从表读出的图案获得量化步长的数量（S22）。
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16.发明申请Information Recording Medium, Data Sorting Device, and Data Reproduction Device 有权信息记录介质，数据分类设备和数据再现设备公开(公告)号：US20090010622A1
公开(公告)日：2009-01-08
申请号：US11659038
申请日：2005-08-17
IPC分类号： H04N5/00
CPC分类号： G11B20/1217 , G11B27/105 , G11B27/3027 , H04N5/775 , H04N5/85 , H04N9/8042 , H04N9/8063 , H04N9/8205 , H04N9/8227
摘要： The present invention provides an information recording medium in which an access unit including basic data and extension data is recorded, so as to allow a decoder that decodes only basic data to process the access unit which includes the basic data and the extension data for the next generation.The information recording medium is an information recording medium on which a stream is recorded, the stream having plural access units and including at least one of video and audio, wherein each of the access units has basic data and extension data related to the basic data, the basic data is data that can be decoded into a completed state without requiring the extension data, and the extension data is data for improving the quality of data generated from the basic data, and information indicating that the extension data is included in each of the access units is recorded in an area, included in the access unit, which cannot be identified by the decoder which decodes only the basic data.
摘要翻译： 本发明提供了一种信息记录介质，其中记录了包括基本数据和扩展数据的访问单元，以便允许仅解码基本数据的解码器处理包括基本数据和下一个扩展数据的访问单元 代。 信息记录介质是其上记录有流的信息记录介质，该流具有多个存取单元并且包括视频和音频中的至少一个，其中每个访问单元具有与基本数据相关的基本数据和扩展数据， 基本数据是可以解码成完成状态而不需要扩展数据的数据，并且扩展数据是用于提高从基本数据生成的数据的质量的数据，以及指示扩展数据被包括在每个 访问单元被记录在包括在访问单元中的区域中，该区域不能由只解码基本数据的解码器识别。
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公开(公告)号：US07827616B2
公开(公告)日：2010-11-02
申请号：US11494745
申请日：2006-07-28
申请人： Kosuke Nishio , Takashi Katayama , Tomoki Ogawa
发明人： Kosuke Nishio , Takashi Katayama , Tomoki Ogawa
IPC分类号： G06F21/00
CPC分类号： H04K1/00 , G11B20/00086
摘要： A decoding apparatus includes: a decoding section for decoding a first one of input encoded audio data sets that has been encoded by a certain encoding method; a first output section for outputting audio data decoded by the decoding section, in accordance with a first output control signal; a second output section for externally outputting the first one of the input encoded audio data sets, or a second one of the input encoded audio data sets, in accordance with a second output control signal; a copyright information detection section for detecting copyright information from the audio data decoded by the decoding section; a communications section for communicating with an external device which receives the encoded audio data set output from the second output section; and an output control section for outputting the first and second output control signals in accordance with the copyright information and a copyright information detection result received by the communications section from the external device.
摘要翻译： 解码装置包括：解码部分，用于对已经由特定编码方法编码的输入编码音频数据集中的第一个进行解码; 第一输出部分，用于根据第一输出控制信号输出由解码部分解码的音频数据; 第二输出部分，用于根据第二输出控制信号外部输出输入编码音频数据集中的第一个或输入编码音频数据集中的第二个; 版权信息检测部分，用于从由解码部分解码的音频数据中检测版权信息; 通信部分，用于与接收从第二输出部分输出的编码音频数据集的外部设备进行通信; 以及输出控制部分，用于根据版权信息和通信部分从外部设备接收的版权信息检测结果输出第一和第二输出控制信号。
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公开(公告)号：US20070033145A1
公开(公告)日：2007-02-08
申请号：US11498750
申请日：2006-08-04
申请人： Kosuke Nishio , Takashi Katayama , Tomoki Ogawa
发明人： Kosuke Nishio , Takashi Katayama , Tomoki Ogawa
CPC分类号： G06Q99/00 , H04N5/85 , H04N9/8042 , H04N2005/91335
摘要： A decoding apparatus includes: a decoding section for decoding input encoded data; an output section for outputting data decoded by the decoding section, in accordance with an output control signal; a plurality of copyright information detection sections for detecting different types of copyright information from the data decoded by the decoding section and each outputting the detected copyright information; an output control section for outputting the output control signal in accordance with the copyright information detected by at least one of the plurality of copyright information detection sections; and a detection control section for controlling the plurality of copyright information detection sections so that at least one of the plurality of copyright information detection sections has a period of time in which the at least one copyright information detection section does not perform process.
摘要翻译： 解码装置包括：解码部分，用于解码输入的编码数据; 输出部分，用于根据输出控制信号输出由解码部分解码的数据; 多个版权信息检测部分，用于从由解码部分解码的数据中检测不同类型的版权信息，并输出检测到的版权信息; 输出控制部分，用于根据由多个版权信息检测部分中的至少一个检测到的版权信息输出输出控制信号; 以及检测控制部分，用于控制多个版权信息检测部分，使得多个版权信息检测部分中的至少一个具有至少一个版权信息检测部分不进行处理的时间段。
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公开(公告)号：US20070028308A1
公开(公告)日：2007-02-01
申请号：US11493527
申请日：2006-07-27
申请人： Kosuke Nishio , Takashi Katayama , Tomoki Ogawa
发明人： Kosuke Nishio , Takashi Katayama , Tomoki Ogawa
IPC分类号： H04L9/32
CPC分类号： H04K1/00
摘要： A decoding apparatus includes: a decoding section for decoding input encoded video data and input encoded audio data; an output section for outputting video data and audio data decoded by the decoding section, in accordance with an output control signal; a decoding control section for controlling the decoding section in such a manner that in a case in which copyright information on contents containing the encoded video data and the encoded audio data is not detected, if there is a playback request, the decoding section performs decoding process for performing playback at normal speed, and if there is no playback request, the decoding section performs decoding process for detecting the copyright information at high speed; a copyright information detection section for detecting the copyright information from the audio data decoded by the decoding section; and an output control section for determining, based on the detected copyright information, whether or not the contents are authorized contents and outputting the output control signal.
摘要翻译： 解码装置包括：解码部分，用于解码输入的编码视频数据和输入编码音频数据; 输出部分，用于根据输出控制信号输出由解码部分解码的视频数据和音频数据; 解码控制部分，用于以下述方式控制解码部分，即在没有检测到包含编码视频数据和编码音频数据的内容的版权信息的情况下，如果存在重放请求，则解码部分执行解码处理 用于以正常速度进行播放，并且如果没有播放请求，则解码部分执行用于高速检测版权信息的解码处理; 版权信息检测部分，用于从由解码部分解码的音频数据中检测版权信息; 以及输出控制部分，用于基于检测到的版权信息确定内容是否是授权内容，并输出输出控制信号。
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公开(公告)号：US20070028306A1
公开(公告)日：2007-02-01
申请号：US11494745
申请日：2006-07-28
申请人： Kosuke Nishio , Takashi Katayama , Tomoki Ogawa
发明人： Kosuke Nishio , Takashi Katayama , Tomoki Ogawa
CPC分类号： H04K1/00 , G11B20/00086
摘要： A decoding apparatus includes: a decoding section for decoding a first one of input encoded audio data sets that has been encoded by a certain encoding method; a first output section for outputting audio data decoded by the decoding section, in accordance with a first output control signal; a second output section for externally outputting the first one of the input encoded audio data sets, or a second one of the input encoded audio data sets, in accordance with a second output control signal; a copyright information detection section for detecting copyright information from the audio data decoded by the decoding section; a communications section for communicating with an external device which receives the encoded audio data set output from the second output section; and an output control section for outputting the first and second output control signals in accordance with the copyright information and a copyright information detection result received by the communications section from the external device.
摘要翻译： 解码装置包括：解码部分，用于对已经由特定编码方法编码的输入编码音频数据集中的第一个进行解码; 第一输出部分，用于根据第一输出控制信号输出由解码部分解码的音频数据; 第二输出部分，用于根据第二输出控制信号外部输出输入编码音频数据集中的第一个或输入编码音频数据集中的第二个; 版权信息检测部分，用于从由解码部分解码的音频数据中检测版权信息; 通信部分，用于与接收从第二输出部分输出的编码音频数据集的外部设备进行通信; 以及输出控制部分，用于根据版权信息和通信部分从外部设备接收的版权信息检测结果输出第一和第二输出控制信号。
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