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

US08972249B2 Decoding apparatus and method, encoding apparatus and method, and program 有权
标题翻译：解码装置和方法，编码装置和方法以及程序
公开(公告)号：US08972249B2
公开(公告)日：2015-03-03
申请号：US13634658
申请日：2011-03-15
申请人： Shiro Suzuki , Yuuki Matsumura , Jun Matsumoto , Yuuji Maeda , Yasuhiro Toguri
发明人： Shiro Suzuki , Yuuki Matsumura , Jun Matsumoto , Yuuji Maeda , Yasuhiro Toguri
IPC分类号： G10L19/02 , G10L21/038
CPC分类号： G10L21/038 , G10L19/0212
摘要： The present invention relates to a decoding apparatus, a decoding method, an encoding apparatus, an encoding method, and programs that can shorten the delay time caused by the band extension at the time of decoding, and restrain increases in resources on the decoding side.A higher frequency component generating unit (73) generates a pseudo higher frequency spectrum by using a lower frequency spectrum (SP-L) and a higher frequency envelope (ENV-H). A phase randomizing unit (74) randomizes the phase of the pseudo higher frequency spectrum, based on a random flag (RND). An inverse MDCT unit (75) denormalizes the lower frequency spectrum (SP-L) by using a lower frequency envelope (ENV-L), and combines the pseudo higher frequency spectrum supplied from the phase randomizing unit (74) with the denormalized lower frequency spectrum (SP-L). The combination result is used as the spectrum of the entire band. The present invention can be applied to a decoding apparatus that performs band extension decoding, for example.
摘要翻译：解码装置，解码方法，编码装置，编码方法和程序技术领域本发明涉及可以缩短在解码时由频带扩展引起的延迟时间的解码装置，解码方法，编码装置，编码方法和程序，并且抑制解码侧的资源增加。较高频率分量产生单元（73）通过使用较低频谱（SP-L）和较高频率包络（ENV-H）产生伪较高频谱。相位随机化单元（74）基于随机标记（RND）使伪较高频谱的相位随机化。逆MDCT单元（75）通过使用较低频率包络（ENV-L）对较低频谱（SP-L）进行非归一化，并且将从相位随机化单元（74）提供的伪高频频谱与非归一化较低频率光谱（SP-L）。组合结果用作整个频带的频谱。本发明可以应用于例如进行频带扩展解码的解码装置。

2. 发明申请

US20120026861A1 DECODING DEVICE, DECODING METHOD, AND PROGRAM 有权
标题翻译：解码设备，解码方法和程序
公开(公告)号：US20120026861A1
公开(公告)日：2012-02-02
申请号：US13191216
申请日：2011-07-26
申请人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
发明人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
IPC分类号： H04J11/00
CPC分类号： H04L27/2649 , H04L27/2639
摘要： A decoding device includes an acquisition unit configured to acquire a first frequency signal including a narrowband signal and a wideband signal, a direct inverse orthogonal transform unit configured to perform a direct matrix operation with respect to the narrowband signal of the first frequency signal so as to perform inverse orthogonal transform, and a high-speed inverse orthogonal transform unit configured to perform inverse orthogonal transform employing a high-speed operation method with respect to the wideband signal of the first frequency signal.
摘要翻译：解码装置包括：获取单元，被配置为获取包括窄带信号和宽带信号的第一频率信号;直接逆正交变换单元，被配置为对所述第一频率信号的窄带信号执行直接矩阵运算，以便执行逆正交变换，以及高速逆正交变换单元，被配置为使用相对于第一频率信号的宽带信号的高速运算方法执行逆正交变换。

3. 发明授权

US09672832B2 Audio encoder, audio encoding method and program 有权
公开(公告)号：US09672832B2
公开(公告)日：2017-06-06
申请号：US13493850
申请日：2012-06-11
申请人： Yasuhiro Toguri , Yuuji Maeda , Jun Matsumoto , Shiro Suzuki , Yuuki Matsumura
发明人： Yasuhiro Toguri , Yuuji Maeda , Jun Matsumoto , Shiro Suzuki , Yuuki Matsumura
IPC分类号： H04R5/00 , G10L19/008 , H04S1/00 , H04B1/00
CPC分类号： G10L19/008 , H04S1/007 , H04S2400/09
摘要： There is provided an audio encoder comprising a determination part determining, based on frequency spectra of audio signals of a plurality of channels, a mixing ratio as a ratio, relative to a frequency spectrum after mixing for each channel of the plurality of channels, of the frequency spectrum for another channel, a mixing part mixing the frequency spectra of the plurality of channels for each channel based on the mixing ratio determined by the determination part, and an encoding part encoding the frequency spectra of the plurality of channels after mixing by the mixing part.

4. 发明授权

US08626501B2 Encoding apparatus, encoding method, decoding apparatus, decoding method, and program 有权
标题翻译：编码装置，编码方法，解码装置，解码方法和程序
公开(公告)号：US08626501B2
公开(公告)日：2014-01-07
申请号：US13303443
申请日：2011-11-23
申请人： Yasuhiro Toguri , Jun Matsumoto , Yuuji Maeda , Shiro Suzuki , Yuuki Matsumura
发明人： Yasuhiro Toguri , Jun Matsumoto , Yuuji Maeda , Shiro Suzuki , Yuuki Matsumura
IPC分类号： G10L21/00
CPC分类号： G10L19/035
摘要： An encoding apparatus includes a time-frequency transform unit that performs a time-frequency transform on an audio signal, a normalization unit that normalizes a frequency spectral coefficient obtained by the time-frequency transform in order to generate encoded data of the audio signal, a level calculation unit that calculates a level of the audio signal, a scale factor changing unit that changes a concealment scale factor included in encoded concealment data obtained by performing, on the basis of the level of the audio signal, a time-frequency transform and normalization on a minute noise signal, the concealment scale factor being a scale factor relating to a coefficient used for the normalization, and an output unit that outputs the encoded data of the audio signal generated by the normalization unit or outputs, as encoded data of the audio signal, the encoded concealment data whose concealment scale factor has been changed.
摘要翻译：编码装置包括对音频信号执行时间 - 频率变换的时间 - 频率变换单元，对通过时间 - 频率变换得到的频谱系数进行归一化的归一化单元，生成音频信号的编码数据，电平计算单元，其计算音频信号的电平;比例因子改变单元，其改变通过基于音频信号的电平执行时间 - 频率变换和归一化而获得的编码隐藏数据中包括的隐藏比例因子在微小噪声信号上，隐藏比例因子是与用于归一化的系数相关的比例因子，以及输出单元，其输出由归一化单元或输出产生的音频信号的编码数据作为音频的编码数据信号，其隐藏比例因子已经改变的编码隐藏数据。

5. 发明授权

US08577944B2 Signal processing device, signal processing method, and signal level display device 有权
标题翻译：信号处理装置，信号处理方法和信号电平显示装置
公开(公告)号：US08577944B2
公开(公告)日：2013-11-05
申请号：US12511498
申请日：2009-07-29
申请人： Shiro Suzuki , Yuuki Matsumura
发明人： Shiro Suzuki , Yuuki Matsumura
IPC分类号： G06F7/10 , G06F7/38
CPC分类号： H03M3/504 , G11B20/1403 , G11B20/1496 , G11B2020/00065
摘要： A signal processing device includes a bit-pattern output unit and a look-up table storage unit which are configured as follows: The bit-pattern output unit is provided for receiving input 1-bit digital signals generated by ΔΣ modification and aligning bits of the input 1-bit digital signals in a chronological order to output parallel bit pattern. The look-up table storage unit is provided for storing a look-up table that represents a relationship between the bit patterns output from the bit pattern output unit and resulting values of a filtering arithmetic operation on the basis of the bit patterns. In the signal processing device, the bit patterns output from the bit-pattern output unit are provided as indexes. The indexes are referenced to output the resulting values of the filtering arithmetic operation corresponding to the bit patterns listed in the look-up table stored in the look-up table storage unit.
摘要翻译：信号处理装置包括位图形输出单元和查找表存储单元，其配置如下：位图案输出单元被提供用于接收由DeltaSigma修改产生的输入1位数字信号和对齐位按时间顺序输入1位数字信号以输出并行位模式。查找表存储单元被提供用于存储一个查找表，该查找表表示基于位模式输出的位模式输出单元输出的位模式与滤波运算运算结果值之间的关系。在信号处理装置中，从位图案输出单元输出的位模式被提供为索引。引用索引以输出与存储在查找表存储单元中的查找表中列出的位模式相对应的滤波算术运算的结果值。

6. 发明申请

US20130003980A1 AUDIO ENCODER, AUDIO ENCODING METHOD AND PROGRAM 有权
标题翻译：音频编码器，音频编码方法和程序
公开(公告)号：US20130003980A1
公开(公告)日：2013-01-03
申请号：US13493850
申请日：2012-06-11
申请人： Yasuhiro Toguri , Yuuji Maeda , Jun Matsumoto , Shiro Suzuki , Yuuki Matsumura
发明人： Yasuhiro Toguri , Yuuji Maeda , Jun Matsumoto , Shiro Suzuki , Yuuki Matsumura
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04S1/007 , H04S2400/09
摘要： There is provided an audio encoder comprising a determination part determining, based on frequency spectra of audio signals of a plurality of channels, a mixing ratio as a ratio, relative to a frequency spectrum after mixing for each channel of the plurality of channels, of the frequency spectrum for another channel, a mixing part mixing the frequency spectra of the plurality of channels for each channel based on the mixing ratio determined by the determination part, and an encoding part encoding the frequency spectra of the plurality of channels after mixing by the mixing part.
摘要翻译：提供了一种音频编码器，其包括确定部件，其基于多个通道的音频信号的频谱，确定混合比率作为相对于多个通道中的每个通道混合后的频谱的比率用于另一通道的频谱，混合部分基于由确定部分确定的混合比混合用于每个通道的多个通道的频谱;以及编码部分，其通过混合混合之后编码多个通道的频谱部分。

7. 发明授权

US08976642B2 Decoding device, decoding method, and program 有权
标题翻译：解码设备，解码方法和程序
公开(公告)号：US08976642B2
公开(公告)日：2015-03-10
申请号：US13191216
申请日：2011-07-26
申请人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
发明人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
IPC分类号： H04J11/00 , H04L27/26
CPC分类号： H04L27/2649 , H04L27/2639
摘要： A decoding device includes an acquisition unit configured to acquire a first frequency signal including a narrowband signal and a wideband signal, a direct inverse orthogonal transform unit configured to perform a direct matrix operation with respect to the narrowband signal of the first frequency signal so as to perform inverse orthogonal transform, and a high-speed inverse orthogonal transform unit configured to perform inverse orthogonal transform employing a high-speed operation method with respect to the wideband signal of the first frequency signal.
摘要翻译：解码装置包括：获取单元，被配置为获取包括窄带信号和宽带信号的第一频率信号;直接逆正交变换单元，被配置为对所述第一频率信号的窄带信号执行直接矩阵运算，以便执行逆正交变换，以及高速逆正交变换单元，被配置为使用相对于第一频率信号的宽带信号的高速运算方法执行逆正交变换。

8. 发明授权

US08849677B2 Coding apparatus, coding method, decoding apparatus, decoding method, and program 有权
标题翻译：编码装置，编码方法，解码装置，解码方法和程序
公开(公告)号：US08849677B2
公开(公告)日：2014-09-30
申请号：US13116030
申请日：2011-05-26
申请人： Shiro Suzuki , Yuuki Matsumura
发明人： Shiro Suzuki , Yuuki Matsumura
IPC分类号： G10L19/00
CPC分类号： G10L19/005 , G10L19/02
摘要： A coding apparatus includes a generation unit configured to generate first coding information used for first coding of a first audio signal and second coding information used for second coding of a second audio signal, and generate third coding information used for the first coding of the second audio signal and fourth coding information used for the second coding of a third audio signal; a first coding unit configured to generate first data and second data; a second coding unit configured to generate third data and fourth data by performing the second coding on the third audio signal; and a multiplexing unit configured to generate a stream of the first audio signal and a stream of the second audio signal. The third data is decoded in place of the second data in a case where a loss or an error has occurred in the stream of the second audio signal.
摘要翻译：编码装置包括生成单元，被配置为生成用于第一音频信号的第一编码的第一编码信息和用于第二音频信号的第二编码的第二编码信息，并且生成用于第二音频的第一编码的第三编码信息用于第三音频信号的第二编码的信号和第四编码信息; 第一编码单元，被配置为生成第一数据和第二数据; 第二编码单元，被配置为通过对所述第三音频信号执行所述第二编码来生成第三数据和第四数据; 以及复用单元，被配置为生成第一音频信号的流和第二音频信号的流。在第二音频信号的流中发生丢失或错误的情况下，代替第二数据来解码第三数据。

9. 发明授权

US08812927B2 Decoding device, decoding method, and program for generating a substitute signal when an error has occurred during decoding 有权
标题翻译：解码装置，解码方法以及在解码时发生错误时产生替代信号的程序
公开(公告)号：US08812927B2
公开(公告)日：2014-08-19
申请号：US13301542
申请日：2011-11-21
申请人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
发明人： Yuuji Maeda , Jun Matsumoto , Yasuhiro Toguri , Shiro Suzuki , Yuuki Matsumura
IPC分类号： H03M13/00 , H04J11/00 , H04L27/00
CPC分类号： G10L19/005 , G10L19/0212 , G10L25/06 , G10L25/90
摘要： A decoding device including a decoding unit which decodes encoded data, an inverse orthogonal transformation unit which performs inverse orthogonal transformation for the encoded data and obtains a time series waveform element in a unit of blocks, a correlation calculation unit which obtains a correlation between a time series waveform element of a block arranged immediately before an error block which is a block in which an error has occurred during decoding by the decoding unit and a time series waveform element of a block arranged a predetermined number of blocks before the block, a cycle calculation unit which obtains a basic cycle of a block unit of the error block based on the correlation obtained by the correlation calculation unit, and a generation unit which generates a substitute signal of the time series waveform element of the error block.
摘要翻译：一种解码装置，包括对编码数据进行解码的解码单元，对编码数据执行逆正交变换的逆正交变换单元，以块为单位求出时间序列波形要素;相关计算单元，紧接在作为在解码单元进行解码期间发生错误的块的错误块之前布置的块的串联波形元素以及在块前排列预定数量的块的块的时间序列波形元素，周期计算单元，其基于由相关计算单元获得的相关性获得误差块的块单位的基本周期;以及生成单元，其生成误差块的时间序列波形元素的替代信号。

10. 发明申请

US20130006647A1 ENCODING DEVICE AND ENCODING METHOD, DECODING DEVICE AND DECODING METHOD, AND PROGRAM 有权
标题翻译：编码设备和编码方法，解码设备和解码方法以及程序
公开(公告)号：US20130006647A1
公开(公告)日：2013-01-03
申请号：US13583994
申请日：2011-03-08
申请人： Shiro Suzuki , Yuuki Matsumura , Yasuhiro Toguri , Yuuji Maeda
发明人： Shiro Suzuki , Yuuki Matsumura , Yasuhiro Toguri , Yuuji Maeda
IPC分类号： G10L19/00
CPC分类号： G10L19/035 , G10L19/0212
摘要： The present invention relates to an encoding device and an encoding method, a decoding device and a decoding method, and a program that reduce deterioration of sound quality due to encoding of audio signals.An envelope emphasis part (51) emphasizes an envelope (ENV). A noise shaping part (52) divides an emphasized envelope (D) formed by emphasis of the envelope (ENV) by a value larger than 1, and subtracts noise shaping (G) specified by information (NS) from a result of the division. A quantization part (14) sets a result of the subtraction as a quantization bit count (WL), and quantizes a normalized spectrum (S1) formed by normalization of a spectrum (S0) based on the quantization bit count (WL). A multiplexing part (53) multiplexes the information (NS), a quantized spectrum (QS) formed by quantization of the normalized spectrum (S1), and the envelope (ENV). The present invention can be applied to an encoding device encoding audio signals, for example.
摘要翻译：编码装置和编码方法，解码装置和解码方法技术领域本发明涉及一种减少音频信号编码导致的音质劣化的程序。信封重点部分（51）强调信封（ENV）。噪声整形部分（52）将由包络（ENV）的强调形成的强调包络（D）除以大于1的值，并从分割结果中减去由信息（NS）指定的噪声整形（G）。量化部分（14）将减法的结果设置为量化位计数（WL），并且通过基于量化位计数（WL）对通过频谱归一化形成的归一化频谱（S1）进行量化。复用部分（53）复用信息（NS），通过归一化频谱（S1）的量化形成的量化频谱（QS）和信封（ENV）。例如，本发明可以应用于编码音频信号的编码装置。

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