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11. 发明申请

US20100198589A1 AUDIO CODING APPARATUS, AUDIO DECODING APPARATUS, AUDIO CODING AND DECODING APPARATUS, AND TELECONFERENCING SYSTEM 有权
标题翻译：音频编码设备，音频解码设备，音频编码和解码设备以及电话系统
公开(公告)号：US20100198589A1
公开(公告)日：2010-08-05
申请号：US12679814
申请日：2009-07-28
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Huan Zhou
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Huan Zhou
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： The delay in a multi-channel audio coding apparatus and a multi-channel audio decoding apparatus is reduced. The audio coding apparatus includes: a downmix signal generating unit (410) that generates, in a time domain, a first downmix signal that is one of a 1-channel audio signal and a 2-channel audio signal from an input multi-channel audio signal; a downmix signal coding unit (404) that codes the first downmix signal; a first t-f converting unit (401) that converts the input multi-channel audio signal into a multi-channel audio signal in a frequency domain; and a spatial information calculating unit (409) that generates spatial information for generating a multi-channel audio signal from a downmix signal.
摘要翻译：减少了多声道音频编码装置和多声道音频解码装置中的延迟。音频编码装置包括：下混合信号生成单元，其在时域中生成作为来自输入多声道音频的1声道音频信号和2声道音频信号之一的第1降混信号信号; 编码第一下混信号的下混信号编码单元（404）第一t-f转换单元，其将输入的多声道音频信号转换成频域中的多声道音频信号; 以及空间信息计算单元（409），其生成用于从降混信号生成多声道音频信号的空间信息。

12. 发明授权

US09105264B2 Coding apparatus and decoding apparatus 有权
标题翻译：编码装置和解码装置
公开(公告)号：US09105264B2
公开(公告)日：2015-08-11
申请号：US13121991
申请日：2010-07-30
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Huan Zhou
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Huan Zhou
IPC分类号： H04R5/00 , G10L19/008
CPC分类号： G10L19/008 , H04S2420/03
摘要： A coding apparatus which suppresses an extreme increase in a bit rate, includes: a downmixing and coding unit (301) that downmixes audio signals that have been provided, to reduce the number of channels to be fewer than the number of the provided audio signals, and to code the downmix signals; an object parameter extracting unit (304) that extracts parameters indicating correlation between the audio signals; and a multiplexing circuit (309) that multiplexes the extracted parameters with the generated downmix coded signals. The object parameter extracting unit (304) includes: an object classifying unit (305) that classifies each of the provided audio signals into a predetermined one of types based on audio characteristics; and an object parameter extracting circuit (308) that extracts parameters using a temporal granularity and a frequency granularity each of which is determined for a corresponding one of the types.
摘要翻译：抑制比特率的极大增加的编码装置包括：降混和编码单元（301），其降低已经提供的音频信号，以将频道数减少到少于所提供的音频信号的数量，并对下混合信号进行编码; 提取表示音频信号之间的相关性的参数的对象参数提取单元（304）和多路复用电路（309），将所提取的参数与生成的下混合编码信号进行复用。对象参数提取单元（304）包括：对象分类单元（305），其基于音频特性将所提供的音频信号分类为预定类型; 以及目标参数提取电路（308），其使用时间粒度和频率粒度提取参数，每个时间粒度和频率粒度被确定为相应的一种类型。

13. 发明申请

US20110051940A1 DECODING DEVICE, CODING AND DECODING DEVICE, AND DECODING METHOD 有权
标题翻译：解码设备，编码和解码设备以及解码方法
公开(公告)号：US20110051940A1
公开(公告)日：2011-03-03
申请号：US12920141
申请日：2010-03-26
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Huan Zhou , Zhong Hai Shan , Kok Seng Chong
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Huan Zhou , Zhong Hai Shan , Kok Seng Chong
IPC分类号： H04R5/00
CPC分类号： H04L12/40013 , H04M3/56 , H04R5/04
摘要： There was no method of positioning virtual sound sources of object signals obtained from received coded object information, in a listening space on a receiving site side. Provided are an object decoding unit (806) that receives a plurality of pieces of coded acoustic information coded on an object basis and decodes the received coded acoustic information on an object basis to generate object signals, and an a rendering unit (807) that positions, for each acoustic signal resulting from synthesizing the object signals, a virtual sound source of each of the object signals resulting from the object-based decoding, in a listening space, and priority information indicating a priority of the acoustic signal is multiplexed with the coded acoustic information, and the rendering unit (807) determines, with reference to the priority indicated in the priority information or the number of object signals included in the acoustic signal, a size of an area of the listening space which is allocated to the acoustic signal, and positions, within the area, the virtual sound source of each of the object signals included in the acoustic signal.
摘要翻译：在接收站点侧的收听空间中没有定位从接收到的编码对象信息获得的对象信号的虚拟声源的方法。提供了一种对象解码单元（806），其接收基于对象编码的多条编码声音信息，并且基于对象对接收到的编码声音信息进行解码以生成对象信号;以及渲染单元（807），其定位对于从合成对象信号得到的每个声信号，在收听空间中从基于对象的解码得到的每个对象信号的虚拟声源和指示声信号的优先级的优先级信息被多路复用声音信息，并且再现单元（807）参照优先权信息中所指示的优先级或包括在声学信号中的对象信号的数量来确定分配给声信号的收听空间的面积的大小，以及在区域内的位置，包括在声信号中的每个对象信号的虚拟声源。

14. 发明授权

US08311810B2 Reduced delay spatial coding and decoding apparatus and teleconferencing system 有权
标题翻译：减少延迟空间编码和解码装置和电话会议系统
公开(公告)号：US08311810B2
公开(公告)日：2012-11-13
申请号：US12679814
申请日：2009-07-28
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Huan Zhou
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Huan Zhou
IPC分类号： G10L21/00 , G10L19/02 , H04R5/00
CPC分类号： G10L19/008
摘要： The delay in a multi-channel audio coding apparatus and a multi-channel audio decoding apparatus is reduced. The audio coding apparatus includes: a downmix signal generating unit that generates, in a time domain, a first downmix signal that is one of a 1-channel audio signal and a 2-channel audio signal from an input multi-channel audio signal; a downmix signal coding unit that codes the first downmix signal; a first t-f converting unit that converts the input multi-channel audio signal into a multi-channel audio signal in a frequency domain; and a spatial information calculating unit that generates spatial information for generating a multi-channel audio signal from a downmix signal.
摘要翻译：减少了多声道音频编码装置和多声道音频解码装置中的延迟。音频编码装置包括：降混信号生成单元，其在时域中生成来自输入多声道音频信号的1声道音频信号和2声道音频信号之一的第1下混合信号; 下混合信号编码单元，对第一下混信号进行编码; 第一t-f转换单元，其将输入的多声道音频信号转换成频域中的多声道音频信号; 以及空间信息计算单元，其生成用于从降混信号生成多声道音频信号的空间信息。

15. 发明申请

US20110182432A1 CODING APPARATUS AND DECODING APPARATUS 有权
标题翻译：编码装置和解码装置
公开(公告)号：US20110182432A1
公开(公告)日：2011-07-28
申请号：US13121991
申请日：2010-07-30
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Huan Zhou
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Huan Zhou
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04S2420/03
摘要： A coding apparatus which suppresses an extreme increase in a bit rate, includes: a downmixing and coding unit (301) that downmixes audio signals that have been provided, to reduce the number of channels to be fewer than the number of the provided audio signals, and to code the downmix signals; an object parameter extracting unit (304) that extracts parameters indicating correlation between the audio signals; and a multiplexing circuit (309) that multiplexes the extracted parameters with the generated downmix coded signals. The object parameter extracting unit (304) includes: an object classifying unit (305) that classifies each of the provided audio signals into a predetermined one of types based on audio characteristics; and an object parameter extracting circuit (308) that extracts parameters using a temporal granularity and a frequency granularity each of which is determined for a corresponding one of the types.
摘要翻译：抑制比特率的极大增加的编码装置包括：降混和编码单元（301），其降低已经提供的音频信号，以将频道数减少到少于所提供的音频信号的数量，并对下混合信号进行编码; 提取表示音频信号之间的相关性的参数的对象参数提取单元（304）和多路复用电路（309），将所提取的参数与生成的下混合编码信号进行复用。对象参数提取单元（304）包括：对象分类单元（305），其基于音频特性将所提供的音频信号分类为预定类型; 以及目标参数提取电路（308），其使用时间粒度和频率粒度提取参数，每个时间粒度和频率粒度被确定为相应的一种类型。

16. 发明授权

US08718285B2 Decoding device, coding and decoding device, and decoding method 有权
标题翻译：解码装置，编码和解码装置以及解码方法
公开(公告)号：US08718285B2
公开(公告)日：2014-05-06
申请号：US12920141
申请日：2010-03-26
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Huan Zhou , Zhong Hai Shan , Kok Seng Chong
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Huan Zhou , Zhong Hai Shan , Kok Seng Chong
IPC分类号： H04R5/00
CPC分类号： H04L12/40013 , H04M3/56 , H04R5/04
摘要： An object decoding unit receives a plurality of pieces of coded acoustic information coded on an object basis and decodes the received coded acoustic information on an object basis to generate object signals. A rendering unit positions, for each acoustic signal resulting from synthesizing the object signals, a virtual sound source of each of the object signals resulting from the object-based decoding, in a listening space, and priority information indicating a priority of the acoustic signal is multiplexed with the coded acoustic information. The rendering unit determines, with reference to the priority indicated in the priority information or the number of object signals included in the acoustic signal, a size of an area of the listening space which is allocated to the acoustic signal, and positions, within the area, the virtual sound source of each of the object signals included in the acoustic signal.
摘要翻译：对象解码单元接收基于对象编码的多条编码声音信息，并且基于对象对接收到的编码声音信息进行解码以生成对象信号。渲染单元对于从合成对象信号得到的每个声信号，在收听空间中对基于对象的解码产生的每个对象信号的虚拟声源和指示声信号的优先级的优先级信息进行定位，与编码的声学信息复用。渲染单元参考优先权信息中所指示的优先级或包括在声信号中的对象信号的数量来确定分配给声信号的收听空间的面积的大小，以及在该区域内的位置，包括在声信号中的每个对象信号的虚拟声源。

17. 发明授权

US08504184B2 Combination device, telecommunication system, and combining method 有权
标题翻译：组合设备，电信系统及组合方法
公开(公告)号：US08504184B2
公开(公告)日：2013-08-06
申请号：US12935797
申请日：2010-02-04
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Huan Zhou , Zhong Hai Shan , Kok Seng Chong
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Huan Zhou , Zhong Hai Shan , Kok Seng Chong
IPC分类号： G06F17/00
CPC分类号： G10L19/008 , H04M3/56
摘要： A combination device (305) according to the present invention includes: a detection unit (501) that detects active coded bitstreams that are effective coded bitstreams from a plurality of coded bitstreams (116) within a predetermined time period; a first combining unit (504) that combines, from a plurality of downmix sub-streams (115) included in the coded bitstreams (116), only downmix sub-streams (115) included in the active coded bitstreams so as to generate a combined downmix sub-stream (121); and a second combining unit (506) that combines, from a plurality of parameter sub-streams (113) included in the coded bitstreams (116), only parameter sub-streams (113) included In the active coded bitstreams so as to generate a combined parameter sub-stream (122).
摘要翻译：根据本发明的组合装置（305）包括：检测单元（501），其在预定时间段内检测来自多个编码比特流（116）的有效编码比特流的有效编码比特流; 从包括在编码比特流（116）中的多个下混子流（115）组合的第一组合单元（504）仅将包括在有源编码比特流中的子流（115）进行下混合，以便生成组合下混合子流（121）; 以及第二组合单元（506），其从包括在编码比特流（116）中的多个参数子流（113）组合仅包括在所述有源编码比特流中的参数子流（113），以便生成组合参数子流（122）。

18. 发明申请

US20110029113A1 COMBINATION DEVICE, TELECOMMUNICATION SYSTEM, AND COMBINING METHOD 有权
标题翻译：组合设备，电信系统和组合方法
公开(公告)号：US20110029113A1
公开(公告)日：2011-02-03
申请号：US12935797
申请日：2010-02-04
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Huan Zhou , Zhong Hai Shan , Kok Seng Chong
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Huan Zhou , Zhong Hai Shan , Kok Seng Chong
IPC分类号： G06F17/00
CPC分类号： G10L19/008 , H04M3/56
摘要： A combination device (305) according to the present invention includes: a detection unit (501) that detects active coded bitstreams that are effective coded bitstreams from a plurality of coded bitstreams (116) within a predetermined time period; a first combining unit (504) that combines, from a plurality of downmix sub-streams (115) included in the coded bitstreams (116), only downmix sub-streams (115) included in the active coded bitstreams so as to generate a combined downmix sub-stream (121); and a second combining unit (506) that combines, from a plurality of parameter sub-streams (113) included in the coded bitstreams (116), only parameter sub-streams (113) included In the active coded bitstreams so as to generate a combined parameter sub-stream (122).
摘要翻译：根据本发明的组合装置（305）包括：检测单元（501），其在预定时间段内检测来自多个编码比特流（116）的有效编码比特流的有效编码比特流; 从包括在编码比特流（116）中的多个下混子流（115）组合的第一组合单元（504）仅将包括在有源编码比特流中的子流（115）进行下混合，以便生成组合下混合子流（121）; 以及第二组合单元（506），其从包括在编码比特流（116）中的多个参数子流（113）组合仅包括在所述有源编码比特流中的参数子流（113），以便生成组合参数子流（122）。

19. 发明授权

US08019614B2 Energy shaping apparatus and energy shaping method 有权
标题翻译：能量整形设备和能量整形方法
公开(公告)号：US08019614B2
公开(公告)日：2011-09-13
申请号：US12065378
申请日：2006-08-31
申请人： Yoshiaki Takagi , Kok Seng Chong , Takeshi Norimatsu , Shuji Miyasaka , Akihisa Kawamura , Kojiro Ono , Tomokazu Ishikawa
发明人： Yoshiaki Takagi , Kok Seng Chong , Takeshi Norimatsu , Shuji Miyasaka , Akihisa Kawamura , Kojiro Ono , Tomokazu Ishikawa
IPC分类号： G10L19/00
CPC分类号： G10L19/26 , G10L19/008 , G10L19/0204 , H04S2420/03
摘要： A temporal processing apparatus includes: a splitter splitting an audio signal, included in the sub-band domain, into diffuse signals indicating reverberating components and direct signals indicating non-reverberating components; a downmix unit generating a downmix signal by downmixing the direct signals; BPFs respectively generating a bandpass downmix signal and bandpass diffuse signals; normalization processing units respectively generating a normalized downmix signal and normalized diffuse signals; a scale computation processing unit computing, on a predetermined time slot basis, a scale factor indicating the magnitude of energy of the normalized downmix signal with respect to energy of the normalized diffuse signals; a calculating unit generating scale diffuse signals; a HPF generating high-pass diffuse signals; an adding unit generating addition signals; and a synthesis filter bank performing synthesis filter processing on the addition signals and transforming the addition signals into the time domains.
摘要翻译：时间处理装置包括：分离器，将包括在子带域中的音频信号分成指示混响分量的漫射信号和指示非混响分量的直接信号; 下混合单元，通过使直接信号下混合来产生降混信号; BPF分别产生带通下混信号和带通漫射信号; 归一化处理单元，分别产生归一化的下混信号和归一化扩散信号; 比例计算处理单元在预定时隙的基础上计算指示归一化的下混信号相对于归一化扩散信号的能量的能量的大小的比例因子; 计算单元，生成缩放漫射信号; HPF产生高通漫反射信号; 添加单元生成附加信号; 以及合成滤波器组，对加法信号执行合成滤波处理，并将加法信号转换成时域。

20. 发明申请

US20140058737A1 HYBRID SOUND SIGNAL DECODER, HYBRID SOUND SIGNAL ENCODER, SOUND SIGNAL DECODING METHOD, AND SOUND SIGNAL ENCODING METHOD 审中-公开
标题翻译：混合声信号解码器，混合声信号编码器，声信号解码方法和声信号编码方法
公开(公告)号：US20140058737A1
公开(公告)日：2014-02-27
申请号：US13996644
申请日：2012-10-24
申请人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Dan Zhao
发明人： Tomokazu Ishikawa , Takeshi Norimatsu , Kok Seng Chong , Dan Zhao
IPC分类号： G10L19/002
CPC分类号： G10L19/002 , G10L19/02 , G10L19/12 , G10L19/20
摘要： A hybrid sound signal decoder decodes a bitstream including audio frames encoded by an audio encoding process using a low delay filter bank and speech frames encoded by a speech encoding process using linear prediction coefficients. When a current frame to be decoded is an ith frame which is an initial speech frame after switching from an audio frame to a speech frame, the hybrid sound signal decoder generates sub-frames which are a signal corresponding to an i−1th frame before being encoded, using a sub-frame which is a signal generated using a signal of the i−1th frame before being encoded, the signal of the i−1th frame being obtained by decoding the ith frame.
摘要翻译：混合声音信号解码器使用低延迟滤波器组和使用线性预测系数的语音编码处理编码的语音帧来解码包括由音频编码处理编码的音频帧的比特流。当要解码的当前帧是从音频帧切换到语音帧之后的初始语音帧的第i帧时，混合声音信号解码器产生作为与第i-1帧对应的信号的子帧使用作为在编码之前使用第i-1帧的信号产生的信号的子帧，通过解码第i帧获得第i-1帧的信号。

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