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41. 发明申请

US20100042415A1 AUDIO SIGNAL CODING METHOD AND DECODING METHOD 有权
标题翻译：音频信号编码方法和解码方法
公开(公告)号：US20100042415A1
公开(公告)日：2010-02-18
申请号：US12438915
申请日：2007-12-05
申请人： Mineo Tsushima , Akihisa Kawamura
发明人： Mineo Tsushima , Akihisa Kawamura
IPC分类号： G10L21/00
CPC分类号： G10L19/022
摘要： It possible not only to reduce a delay, but also to enhance the coding efficiency and reduce audio artifact upon coding.An audio signal coding method for coding an audio signal to be coded, the method comprising: judging for each of frames whether or not coding should be performed on each of two or more subframes into which the frame is divided, based on an audio signal contained in the frame into which the audio signal to be coded is divided for every set of samples; and when judged that the coding should be performed on each of the subframes, performing, for each subframe, subframe processing of (i) determining a value representing a characteristic of an audio signal of the subframe, and (ii) coding the audio signal using the determined value, wherein in the performing of the subframe processing, whether or not all the values determined for the subframes are the same is judged, and when all the values are the same, the audio signal is coded as exceptional processing, using a characteristic different from characteristics of audio signals indicated by the values.
摘要翻译：可能不仅可以减少延迟，还可以提高编码效率，减少编码时的音频伪影。一种用于对要编码的音频信号进行编码的音频信号编码方法，所述方法包括：基于所包含的音频信号，判断每个帧是否应对被划分的帧的两个或更多个子帧中的每一个执行编码在每个样本集合中划分要编码的音频信号的帧; 并且当判断为每个子帧执行编码时，对于每个子帧执行子帧处理（i）确定表示子帧的音频信号的特性的值，以及（ii）使用确定的值，其中在执行子帧处理中，判定对于子帧确定的全部值是否相同，并且当所有值相同时，将音频信号编码为异常处理，使用特性与由值指示的音频信号的特性不同。

42. 发明授权

US07657429B2 Coding apparatus and coding method for coding with reference to a codebook 有权
标题翻译：参考码本进行编码的编码装置和编码方法
公开(公告)号：US07657429B2
公开(公告)日：2010-02-02
申请号：US10557149
申请日：2004-06-07
申请人： Mineo Tsushima
发明人： Mineo Tsushima
IPC分类号： G10L19/14 , H03M7/42
CPC分类号： H04N19/126 , H03M7/40 , H04N19/187 , H04N19/94
摘要： A coding apparatus includes a fourth layer codebook that shows N number of codes indicating uniquely respective N integers that increment one by one; and first to third layer codebooks that show M number of codes indicating uniquely respective M integers that are a subset of the N integers, and codes a digital signal using any one of the first to fourth layer codebooks. The coding apparatus does not need to do rescaling even when switching one of the first to fourth layer codebooks into another of them.
摘要翻译：编码装置包括：第四层码本，其显示N个代码，其唯一地指示逐个递增的各自的N个整数; 以及第一至第三层码本，其显示M个代表唯一地指示作为N个整数的子集的各个M个整数的代码，并且使用第一至第四层码本中的任一个对数字信号进行编码。即使将第一至第四层码本中的一个转换成另一个码本，编码装置也不需要重新缩放。

43. 发明申请

US20070244706A1 Audio Signal Encoder and Audio Signal Decoder 有权
标题翻译：音频信号编码器和音频信号解码器
公开(公告)号：US20070244706A1
公开(公告)日：2007-10-18
申请号：US11579740
申请日：2005-05-17
申请人： Mineo Tsushima
发明人： Mineo Tsushima
IPC分类号： G10L19/00
CPC分类号： H04S1/007 , G10L19/008
摘要： A portable player (710) or a multi-channel home player (730) includes: a mixed signal decoding unit (711) that extracts, from a first inputted coded stream, a second coded stream representing a downmix signal into which multi-channel audio signals are mixed and supplementary information for reverting the downmix signal back to the multi-channel audio signals before being downmixed, and that decodes the second coded stream representing the downmix signal; a signal separation processing unit (731) that separates the downmix signal obtained by decoding based on the extracted supplementary information and that generates audio signals which are acoustically approximate to the multi-channel audio signals before being downmixed; and headphones or speakers (720) that reproduce the decoded downmix signal or speakers (740) that reproduce the multi-channel audio signals separated from the downmix singal.
摘要翻译：便携式播放器（710）或多声道家庭播放器（730）包括：混合信号解码单元（711），其从第一输入编码流提取表示下混合信号的第二编码流，多声道音频信号被混合，并且用于在下混合之前将下混合信号返回到多声道音频信号的补充信息，并且对表示下混合信号的第二编码流进行解码; 信号分离处理单元，其分离通过解码获得的下混合信号，所述下混合信号基于所提取的补充信息，并且在被混合之前产生声学上接近于多声道音频信号的音频信号; 以及再现解码缩混信号的耳机或扬声器（720）或再现与下混合单音分离的多声道音频信号的扬声器（740）。

44. 发明授权

US07848931B2 Audio encoder 有权
标题翻译：音频编码器
公开(公告)号：US07848931B2
公开(公告)日：2010-12-07
申请号：US11659949
申请日：2005-08-18
申请人： Shuji Miyasaka , Yoshiaki Takagi , Naoya Tanaka , Mineo Tsushima
发明人： Shuji Miyasaka , Yoshiaki Takagi , Naoya Tanaka , Mineo Tsushima
IPC分类号： G10L19/00
CPC分类号： G11B27/022 , G10L19/008 , G11B20/00007
摘要： An audio encoder, which is capable of encoding multiple-channel signals so that only a downmixed signal is decoded and of further generating specific auxiliary information necessary for dividing the downmixed signal, is provided.An audio encoder (10), which compresses and encodes audio signals of N-channels (N>1), includes a downmixed signal encoding unit (11) which encodes the downmixed signal obtained by downmixing the audio signals, and an auxiliary information generation unit (12a) which generates auxiliary information necessary for decoding the downmixed signal encoded by the downmixed signal encoding unit (11) into N-channel audio signals. The auxiliary information generation unit (12a) includes transformation units (121) and (122) which transform audio signals respectively into frequency domain signals, a detection unit (123) which detects phase difference information and gain ratio information each indicates a degree of difference between frequency domain signals, and a quantization unit (125) which quantizes, for each frequency band, the phase difference information and gain ratio information detected by the detection unit (123) using the quantization precision setting table (124). The quantization precision setting table (124) functions as a division unit which divides a frequency band of a frequency domain signal into plural sub-bands.
摘要翻译：一种音频编码器，其能够对多声道信号进行编码，使得只下降混合信号被解码，并且进一步产生分割下混合信号所需的特定辅助信息。对N声道（N> 1）的音频信号进行压缩编码的音频编码器（10）包括下混合信号编码单元（11），其对通过降低音频信号而获得的下混合信号进行编码，以及辅助信息生成单元（12a），其生成将由下混合信号编码单元（11）编码的下混合信号解码为N声道音频信号所需的辅助信息。辅助信息生成单元（12a）包括将音频信号分别变换为频域信号的变换单元（121）和（122），检测单元（123），检测相位差信息和增益比信息，每个都表示频域信号，以及量化单元（125），其对于每个频带，使用量化精度设定表（124）对由检测单元（123）检测的相位差信息和增益比信息进行量化。量化精度设定表（124）作为将频域信号的频带划分为多个子带的分割单位起作用。

45. 发明授权

US07756713B2 Audio signal decoding device which decodes a downmix channel signal and audio signal encoding device which encodes audio channel signals together with spatial audio information 有权
标题翻译：音频信号解码装置，其对下混频道信号和音频信号编码装置进行解码，该装置将音频信道信号与空间音频信息一起编码
公开(公告)号：US07756713B2
公开(公告)日：2010-07-13
申请号：US11629135
申请日：2005-06-28
申请人： Kok Seng Chong , Naoya Tanaka , Sua Hong Neo , Mineo Tsushima
发明人： Kok Seng Chong , Naoya Tanaka , Sua Hong Neo , Mineo Tsushima
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/24
摘要： In the conventional art inventions for coding multi-channel audio signals, three of the major processes involved are: generation of a reverberation signal using an all-pass filter; segmentation of a signal in the time and frequency domains for the purpose of level adjustment; and mixing of a coded binaural signal with an original signal coded up to a fixed crossover frequency. These processes pose the problems mentioned in the present invention. The present invention proposes the following three embodiments: to control the extent of reverberations by dynamically adjusting all-pass filter coefficients with the inter-channel coherence cues; to segment a signal in the time domain finely in the lower frequency region and coarsely in the higher frequency region; and to control a crossover frequency used for mixing based on a bit rate, and if the original signal is coarsely quantized, to mix a downmix signal with an original signal in proportions determined by an inter-channel coherence cue.
摘要翻译：在用于编码多声道音频信号的传统技术发明中，涉及的三个主要过程是：使用全通滤波器产生混响信号; 用于时间和频域的信号分段，以进行电平调整; 并将编码的双耳信号与编码为固定的交越频率的原始信号进行混合。这些处理构成了本发明中提到的问题。本发明提出以下三个实施例：通过使用信道间相干线索动态调整全通滤波器系数来控制混响的程度; 以在较低频率区域精细地分割时域中的信号，在较高频率区域中粗略地分割信号; 并且基于比特率来控制用于混合的交叉频率，并且如果原始信号被粗量化，则以通过信道内相干提示确定的比例将下混合信号与原始信号混合。

46. 发明授权

US09239374B2 Beamforming method, ultrasonic diagnostic apparatus, program, and integrated circuit 有权
标题翻译：波束成形法，超声波诊断装置，程序和集成电路
公开(公告)号：US09239374B2
公开(公告)日：2016-01-19
申请号：US13520349
申请日：2011-11-09
申请人： Mineo Tsushima , Yasuhito Watanabe , Takeo Kanamori
发明人： Mineo Tsushima , Yasuhito Watanabe , Takeo Kanamori
IPC分类号： G01S7/52 , A61B8/00 , G01S15/89 , G10K11/34
CPC分类号： G01S7/52047 , A61B8/4483 , G01S7/52077 , G01S7/52095 , G01S15/8915 , G01S15/8927 , G10K11/341
摘要： A beamforming method according to the present invention is a method of processing echo signals of a target region which are obtained from a probe including a plurality of receiving elements arrayed on a predetermined line. The beamforming method includes the following steps (S1 to S3). At S1, seed beams are formed from echo signals received by at least two receiving elements from among the plurality of receiving elements. At S2, a main beam and sub beams are formed by synthesizing at least one of the seed beams. At S3, a narrow beam for the target region is formed by multiplying the sub beams by respective predetermined coefficients and subtracting the multiplied sub beams from the main beam. Here, an signal intensity for the target region regarding the main beam is higher than a signal intensity for the target region regarding each of the sub beams.
摘要翻译：根据本发明的波束成形方法是一种处理从包括排列在预定线上的多个接收元件的探头获得的目标区域的回波信号的方法。波束形成方法包括以下步骤（S1至S3）。在S1，种子束由从多个接收元件中的至少两个接收元件接收的回波信号形成。在S2，通过合成种子束中的至少一个来形成主光束和子光束。在S3中，通过将子光束相乘预定系数并从主光束中减去相乘的子光束来形成目标区域的窄光束。这里，关于主光束的目标区域的信号强度高于关于每个子光束的目标区域的信号强度。

47. 发明申请

US20120281502A1 BEAMFORMING METHOD, ULTRASONIC DIAGNOSTIC APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT 有权
标题翻译：超声波诊断设备，程序和集成电路
公开(公告)号：US20120281502A1
公开(公告)日：2012-11-08
申请号：US13520349
申请日：2011-11-09
申请人： Mineo Tsushima , Yasuhito Watanabe , Takeo Kanamori
发明人： Mineo Tsushima , Yasuhito Watanabe , Takeo Kanamori
IPC分类号： G01S15/89 , H04B1/02
CPC分类号： G01S7/52047 , A61B8/4483 , G01S7/52077 , G01S7/52095 , G01S15/8915 , G01S15/8927 , G10K11/341
摘要： A beamforming method according to the present invention is a method of processing echo signals of a target region which are obtained from a probe including a plurality of receiving elements arrayed on a predetermined line. The beamforming method includes the following steps (S1 to S3). At S1, seed beams are formed from echo signals received by at least two receiving elements from among the plurality of receiving elements. At S2, a main beam and sub beams are formed by synthesizing at least one of the seed beams. At S3, a narrow beam for the target region is formed by multiplying the sub beams by respective predetermined coefficients and subtracting the multiplied sub beams from the main beam. Here, an signal intensity for the target region regarding the main beam is higher than a signal intensity for the target region regarding each of the sub beams
摘要翻译：根据本发明的波束成形方法是一种处理从包括排列在预定线上的多个接收元件的探头获得的目标区域的回波信号的方法。波束形成方法包括以下步骤（S1至S3）。在S1，种子束由从多个接收元件中的至少两个接收元件接收的回波信号形成。在S2，通过合成种子束中的至少一个来形成主光束和子光束。在S3中，通过将子光束相乘预定系数并从主光束中减去相乘的子光束来形成目标区域的窄光束。这里，关于主光束的目标区域的信号强度高于关于每个子光束的目标区域的信号强度

48. 发明授权

US08160890B2 Audio signal coding method and decoding method 有权
标题翻译：音频信号编码方法和解码方法
公开(公告)号：US08160890B2
公开(公告)日：2012-04-17
申请号：US12438915
申请日：2007-12-05
申请人： Mineo Tsushima , Akihisa Kawamura
发明人： Mineo Tsushima , Akihisa Kawamura
IPC分类号： G10L19/00 , G10L19/14
CPC分类号： G10L19/022
摘要： It possible not only to reduce a delay, but also to enhance the coding efficiency and reduce audio artifact upon coding.An audio signal coding method for coding an audio signal to be coded, the method comprising: judging for each of frames whether or not coding should be performed on each of two or more subframes into which the frame is divided, based on an audio signal contained in the frame into which the audio signal to be coded is divided for every set of samples; and when judged that the coding should be performed on each of the subframes, performing, for each subframe, subframe processing of (i) determining a value representing a characteristic of an audio signal of the subframe, and (ii) coding the audio signal using the determined value, wherein in the performing of the subframe processing, whether or not all the values determined for the subframes are the same is judged, and when all the values are the same, the audio signal is coded as exceptional processing, using a characteristic different from characteristics of audio signals indicated by the values.
摘要翻译：可能不仅可以减少延迟，还可以提高编码效率，减少编码时的音频伪影。一种用于对要编码的音频信号进行编码的音频信号编码方法，所述方法包括：基于所包含的音频信号，判断每个帧是否应对被划分的帧的两个或更多个子帧中的每一个执行编码在每个样本集合中划分要编码的音频信号的帧; 并且当判断为每个子帧执行编码时，对于每个子帧执行子帧处理（i）确定表示子帧的音频信号的特性的值，以及（ii）使用确定的值，其中在执行子帧处理中，判定对于子帧确定的全部值是否相同，并且当所有值相同时，将音频信号编码为异常处理，使用特性与由值指示的音频信号的特性不同。

49. 发明授权

US08078475B2 Audio signal encoder and audio signal decoder 有权
标题翻译：音频信号编码器和音频信号解码器
公开(公告)号：US08078475B2
公开(公告)日：2011-12-13
申请号：US11579740
申请日：2005-05-17
申请人： Mineo Tsushima
发明人： Mineo Tsushima
IPC分类号： G10L19/00 , H04R5/00
CPC分类号： H04S1/007 , G10L19/008
摘要： A portable player or a multi-channel home player includes: a mixed signal decoding unit that extracts, from a first inputted coded stream, a second coded stream representing a downmix signal into which multi-channel audio signals are mixed and supplementary information for reverting the downmix signal back to the multi-channel audio signals before being downmixed, and that decodes the second coded stream representing the downmix signal; a signal separation processing unit that separates the downmix signal obtained by decoding based on the extracted supplementary information and that generates audio signals which are acoustically approximate to the multi-channel audio signals before being downmixed; and headphones or speakers that reproduce the decoded downmix signal or speakers that reproduce the multi-channel audio signals separated from the downmix signal.
摘要翻译：一种便携式播放器或多声道家庭播放器包括：混合信号解码单元，从第一输入编码流提取表示多声道音频信号混合到其中的下混合信号的第二编码流，以及用于恢复在混合之前将下混合信号返回到多声道音频信号，并且对表示下混合信号的第二编码流进行解码; 信号分离处理单元，其根据所提取的补充信息分离通过解码获得的下混合信号，并在下混合之前产生声学上接近多声道音频信号的音频信号; 以及再现解码缩混信号或扬声器的耳机或扬声器，其再现与下混合信号分离的多声道音频信号。

50. 发明授权

US07860721B2 Audio encoding device, decoding device, and method capable of flexibly adjusting the optimal trade-off between a code rate and sound quality 有权
标题翻译：音频编码装置，解码装置和方法，其能够灵活地调整码率和声音质量之间的最佳权衡
公开(公告)号：US07860721B2
公开(公告)日：2010-12-28
申请号：US11597558
申请日：2005-09-13
申请人： Mineo Tsushima , Yoshiaki Takagi , Kojiro Ono , Naoya Tanaka , Shuji Miyasaka
发明人： Mineo Tsushima , Yoshiaki Takagi , Kojiro Ono , Naoya Tanaka , Shuji Miyasaka
IPC分类号： G10L19/00
CPC分类号： G10L19/0208 , G10L19/008
摘要： Provided are an audio encoding device and an audio decoding device, by which optimal trade-off between code rates and sound quality can be flexibly adjusted. A variable frequency segmentation encoding unit includes: difference degree calculation units for calculating a difference degree between first and second input signals depending on a segmentation method for segmenting a frequency band into sub-bands; a selection unit for selecting one of the segmentation methods; and a difference degree and segmentation information encoding unit for encoding the selected method and the difference degree for each sub-band. A variable frequency segment decoding unit includes: a segmentation information decoding unit for decoding the segmentation information to learn the segmentation method; a switching unit for outputting a difference degree code corresponding to the segmentation method; and difference degree decoding units for decoding the difference degree code to the difference degree for each sub-band.
摘要翻译：提供了一种音频编码装置和音频解码装置，可以灵活地调整码率和声音质量之间的最佳权衡。可变频率分割编码单元包括：差分度计算单元，用于根据用于将频带分割为子带的分割方法计算第一和第二输入信号之间的差值; 选择单元，用于选择所述分割方法之一; 以及差分度和分割信息编码单元，用于对所选择的方法和每个子带的差分度进行编码。可变频段解码单元包括：分割信息解码单元，用于对分割信息进行解码以学习分割方法; 切换单元，用于输出与分割方法对应的差分度码; 以及差分度解码单元，用于将差分度码解码为每个子带的差分度。

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