公开(公告)号：US20060259298A1

公开(公告)日：2006-11-16

申请号：US11381791

申请日：2006-05-05

申请人： Yuuki Matsumura ,  Shiro Suzuki ,  Keisuke Toyama ,  Mitsuyuki Hatanaka ,  Yuhki Mitsufuji

发明人： Yuuki Matsumura ,  Shiro Suzuki ,  Keisuke Toyama ,  Mitsuyuki Hatanaka ,  Yuhki Mitsufuji

IPC分类号： G10L19/00

CPC分类号： G10L19/032

摘要： There is provided an audio coding device which appropriately sets the quantization bit number by a small calculation amount in each stage when coding an input audio signal by performing multi-stage normalization/quantization. A quantization information calculation section determines total quantization information idw10, based on normalization information idsf, and allocates the total quantization information idw10 for quantization information idw11 and quantization information idw12. At this time, the quantization information calculation section limits the quantization information idw11 by a limiter lim1, and allocates the total quantization information idw10 for quantization information idw11. If the quantization information idw11 exceeds the limiter lim1, the excess is allocated for the quantization information idw12. A first normalization section and a first quantization section normalizes and quantizes a frequency spectrum mdspec1 in the first stage. A second normalization section and a second quantization section normalizes and quantizes a differential frequency spectrum mdspec2 in the second stage.

摘要翻译： 提供了一种音频编码装置，其通过执行多级标准化/量化来对输入的音频信号进行编码时，在每个级中适当地设置量化位数小的计算量。 量化信息计算部分基于归一化信息idid来确定总量化信息idw 10，并且分配用于量化信息idw 11和量化信息idw12的总量化信息idw 10。此时，量化信息计算部分限制量化信息 对于量化信息idw 11分配总量化信息idw 10，如果量化信息idw 11超过限制器lim1，则为量化信息idw12分配过量。第一归一化部分和 第一量化部对第一级的频谱mdspec1进行归一化和量化。 第二归一化部分和第二量化部分对第二阶段中的差分频谱mdspec2进行归一化和量化。

公开(公告)号：US07124076B2

公开(公告)日：2006-10-17

申请号：US10203775

申请日：2001-12-14

申请人： Minoru Tsuji ,  Shiro Suzuki ,  Keisuke Toyama

发明人： Minoru Tsuji ,  Shiro Suzuki ,  Keisuke Toyama

IPC分类号： G10L19/02

CPC分类号： H04B14/046 ,  G10L19/0204 ,  G10L19/025 ,  H03M7/30 ,  H04B1/667 ,  H04L25/062

摘要： The present invention relates to encoding apparatuses which allow encoding to be performed such that the occurrence of pre-echo and post-echo is suppressed. A predetermined waveform analysis is applied to a low-frequency-component input time-sequential signal which includes a high-frequency component occurring at a specific time, and a low-frequency-component time-sequential signal like that shown in FIG. 9A is generated according to a result of the analysis. The low-frequency-component time-sequential signal is removed from the input time-sequential signal to generate a residual time-sequential signal like that shown in FIG. 9B. An amplitude control process is applied such that the amplitude of the residual time-sequential signal is made almost constant in a block which serves as a unit of encoding to generate a time-sequential signal to be quantized, like that shown in FIG. 9C. The time-sequential signal to be quantized is quantized and encoded. The present invention can be applied to audio recording and reproduction apparatuses.

摘要翻译： 本发明涉及允许执行编码以使得抑制前回波和后回波的发生的编码装置。 预定的波形分析被应用于包括在特定时间发生的高频分量的低频分量输入时间序列信号和类似于。 从输入时序信号中去除低频分量时序信号，生成如图所示的残留时序信号。 9B 。 施加幅度控制处理，使得在用作编码单位的块中使残差时间顺序信号的幅度几乎恒定，以产生要量化的时间序列信号，如。 对量化的时序信号进行量化和编码。 本发明可以应用于音频记录和再现设备。

公开(公告)号：US06614365B2

公开(公告)日：2003-09-02

申请号：US10020829

申请日：2001-12-12

申请人： Shiro Suzuki ,  Minoru Tsuji ,  Keisuke Toyama

发明人： Shiro Suzuki ,  Minoru Tsuji ,  Keisuke Toyama

IPC分类号： H03M700

CPC分类号： H04S1/007

摘要： Coding is made possible with higher efficiency while the listener is prevented from feeling a sense of incongruity. An adaptive mixing section performs a mixing process on input signals on the basis of distortion factor information supplied from a distortion factor detection section, and controls the operation time of MS stereo coding or IS stereo coding. Furthermore, the adaptive mixing section creates power correction information in accordance with a mixing coefficient, and causes power correction to be performed during reproduction. A coding control section selects a coding method of a coding process performed in a coding section and supplies it to the coding section. The coding section selects dual coding, MS stereo coding, or IS stereo coding in accordance with the instructions from the coding control section, and codes a spectrum signal supplied from a domain conversion section.

公开(公告)号：US5517664A

公开(公告)日：1996-05-14

申请号：US459965

申请日：1995-06-02

申请人： Tan Watanabe ,  Keiichi Kurakazu ,  Yugo Kashiwagi ,  Keisuke Toyama ,  Tohru Nojiri

发明人： Tan Watanabe ,  Keiichi Kurakazu ,  Yugo Kashiwagi ,  Keisuke Toyama ,  Tohru Nojiri

IPC分类号： G06F15/00 ,  G06F9/30 ,  G06F9/318 ,  G06F9/355 ,  G06F9/40 ,  G06F9/42 ,  G06F9/46 ,  G06F9/48 ,  G06F12/00 ,  G06F12/02

CPC分类号： G06F9/30138 ,  G06F9/30105 ,  G06F9/30127 ,  G06F9/30134 ,  G06F9/342 ,  G06F9/4425 ,  G06F9/461 ,  G06F9/462

摘要： In a computer system equipped with a large number of registers which have an access time much shorter than that of a main memory, a register designating address part in which the assignment of an area register having a register address of a register area as its value and the assignment of a register displacement value expressing a relative register address within the register area are combined is provided in each instruction so that, even when physical registers are increased, save and restore of registers attendant upon task switches, etc. may be lessened to attain a raised speed of program run processing.Besides, an address part for designating the main memory is provided in the same instruction.

摘要翻译： 在配备有大量寄存器的计算机系统中，其存取时间比主存储器短得多;寄存器指定地址部分，其中具有寄存器区域的寄存器地址的区域寄存器的分配作为其值，以及 在每个指令中提供了表示寄存器区域内的相对寄存器地址的寄存器位移值的分配，使得即使当物理寄存器增加时，也可以减少对任务切换等等的寄存器的保存和恢复以达到 程序运行处理速度提高。 此外，在相同的指令中提供了用于指定主存储器的地址部分。

公开(公告)号：US5214786A

公开(公告)日：1993-05-25

申请号：US37843

申请日：1987-04-13

申请人： Tan Watanabe ,  Keiichi Kurakazu ,  Yugo Kashiwagi ,  Keisuke Toyama ,  Thoru Nojiri

发明人： Tan Watanabe ,  Keiichi Kurakazu ,  Yugo Kashiwagi ,  Keisuke Toyama ,  Thoru Nojiri

IPC分类号： G06F15/00 ,  G06F9/30 ,  G06F9/318 ,  G06F9/355 ,  G06F9/40 ,  G06F9/42 ,  G06F9/46 ,  G06F9/48 ,  G06F12/00 ,  G06F12/02

CPC分类号： G06F9/30138 ,  G06F9/30105 ,  G06F9/30127 ,  G06F9/30134 ,  G06F9/342 ,  G06F9/4425 ,  G06F9/461 ,  G06F9/462

摘要： In a computer system equipped with a large number of registers which have an access time much shorter than that of a main memory, a register designating address part in which the assignment of an area register having a register address of a register area as its value and the assignment of a register displacement value expressing a relative register address within the register area are combined is provided in each instruction so that, even when physical registers are increased, save and restore of registers attendant upon task switches, etc. may be lessened to attain a raised speed of program run processing.Besides, an address part for designating the main memory is provided in the same instruction.

摘要翻译： 在配备有大量寄存器的计算机系统中，其存取时间比主存储器短得多;寄存器指定地址部分，其中具有寄存器区域的寄存器地址的区域寄存器的分配作为其值，以及 在每个指令中提供了表示寄存器区域内的相对寄存器地址的寄存器位移值的分配，使得即使当物理寄存器增加时，也可以减少对任务切换等等的寄存器的保存和恢复以达到 程序运行处理速度提高。 此外，在相同的指令中提供了用于指定主存储器的地址部分。

公开(公告)号：US08521522B2

公开(公告)日：2013-08-27

申请号：US11381791

申请日：2006-05-05

申请人： Yuuki Matsumura ,  Shiro Suzuki ,  Keisuke Toyama ,  Mitsuyuki Hatanaka ,  Yuhki Mitsufuji

发明人： Yuuki Matsumura ,  Shiro Suzuki ,  Keisuke Toyama ,  Mitsuyuki Hatanaka ,  Yuhki Mitsufuji

IPC分类号： H04B14/06

CPC分类号： G10L19/032

摘要： There is provided an audio coding device which appropriately sets the quantization bit number by a small calculation amount in each stage when coding an input audio signal by performing multi-stage normalization/quantization. A quantization information calculation section determines total quantization information idwl0, based on normalization information idsf, and allocates the total quantization information idwl0 for quantization information idwl1 and quantization information idwl2. At this time, the quantization information calculation section limits the quantization information idwl1 by a limiter lim1, and allocates the total quantization information idwl0 for quantization information idwl1. If the quantization information idwl1 exceeds the limiter lim1, the excess is allocated for the quantization information idwl2. A first normalization section and a first quantization section normalizes and quantizes a frequency spectrum mdspec1 in the first stage. A second normalization section and a second quantization section normalizes and quantizes a differential frequency spectrum mdspec2 in the second stage.

摘要翻译： 提供了一种音频编码装置，其通过执行多级标准化/量化来对输入的音频信号进行编码时，在每个级中适当地设置量化位数小的计算量。 量化信息计算部分基于规范化信息idid来确定总量化信息idwl0，并分配量化信息idwl1和量化信息idwl2的总量化信息idwl0。 此时，量化信息计算部分通过限制器lim1限制量化信息idwl1，并且分配量化信息idwl1的总量化信息idwl0。 如果量化信息idwl1超过限制器lim1，则为量化信息idwl2分配过量。 第一归一化部分和第一量化部分对第一级中的频谱mdspec1进行归一化和量化。 第二归一化部分和第二量化部分对第二阶段中的差分频谱mdspec2进行归一化和量化。

公开(公告)号：US07627482B2

公开(公告)日：2009-12-01

申请号：US11951056

申请日：2007-12-05

申请人： Minoru Tsuji ,  Shiro Suzuki ,  Keisuke Toyama

发明人： Minoru Tsuji ,  Shiro Suzuki ,  Keisuke Toyama

IPC分类号： G10L19/00 ,  G10L21/00 ,  G10L21/04 ,  H03M7/00

CPC分类号： G10L19/008

摘要： A sound signal encoder for high efficiency encoding of sound signals from a plurality of channels is provided which includes a to-be-correlated object setter (52), to-be-correlated object selector (56) and a variable-length encoder (58). The to-be-correlated object setter (52) sets, on the basis of left-channel frequency information held in a left-channel frequency information holder (50) and right-channel frequency information held in a right-channel frequency information holder (51), index [i] indicating which ones of sine waves on the left channel are to be correlated with, namely, are to be subtracted from, sine waves on the right channel. The to-be-correlated object selector (56) selects a default value read from a storage unit (55) or index [i]-th amplitude information read from a left-channel amplitude information holder (53) as an object to be subtracted from the i-th amplitude information on the right channel according to the index [i]. The variable-length encoder (58) makes variable-length encoding of a difference resulted from subtraction of the left-channel amplitude information or default value as the to-be-correlated object from the amplitude information on the right channel.

摘要翻译： 提供了一种用于对来自多个通道的声音信号进行高效编码的声音信号编码器，其包括待相关对象设定器（52），待相关对象选择器（56）和可变长度编码器（58​​） ）。 要相关对象设定器（52）基于保持在左声道频率信息保持器（50）中的左声道频率信息和保持在右声道频率信息保持器（50）中的右声道频率信息， 51），指示左侧信道上哪个正弦波与哪个相关联的索引[i]，即从右声道上的正弦波中减去。 待相关对象选择器（56）从作为要减去的对象中选择从存储单元（55）读取的默认值或从左声道幅度信息保持器（53）读取的索引[i]个幅度信息 根据索引[i]从右声道上的第i幅度信息。 可变长度编码器（58​​）对从右声道的振幅信息中减去左声道幅度信息或默认值作为要相关对象产生的差的可变长度编码。

公开(公告)号：US07627469B2

公开(公告)日：2009-12-01

申请号：US11132985

申请日：2005-05-19

申请人： Benjamin Frederic Nettre ,  Keisuke Toyama ,  Shiro Suzuki

发明人： Benjamin Frederic Nettre ,  Keisuke Toyama ,  Shiro Suzuki

IPC分类号： G10L19/00

CPC分类号： G10L19/032

摘要： Any disagreement of the power level before encoding an audio signal and the power level after encoding the audio signal is adjusted to improve the sound quality to the auditory sense. The present invention provides an audio signal encoding apparatus comprising, a band dividing section that divides an input audio signal by a plurality frequency sub-bands, a spectral transform section that transforms the audio signal of each frequency sub-band into a spectral signal, a normalizing section that normalizes each spectral signal by means of a scale factor and generates a normalized spectral signal, a quantizing section that quantizes each normalized spectral signal and generates a quantized spectral signal, a scale factor adjusting section that adjusts the value of the scale factor used by the normalizing section according to the normalized spectral signal and the quantized spectral signal, and an encoding section that encodes at least each quantized spectral signal and the scale factor used by the normalizing section or the scale factor adjusted by the scale factor adjusting section. The scale factor adjusting section is adapted to compare the absolute value of the difference of the energy of the normalized spectral signal and the energy of the quantized spectral signal with a first threshold value for each frequency sub-band and, if the absolute value of the difference is greater than the first threshold value, adjust the value of the scale factor used by the normalizing section so as to make the absolute value of the difference of the energies not greater than a second threshold value.

摘要翻译： 在对音频信号进行编码之前的功率电平的任何不一致性以及对音频信号进行编码之后的功率电平进行调整，以提高听觉的声音质量。 本发明提供了一种音频信号编码装置，包括：频带划分部，其将输入音频信号除以多个频率子带;频谱变换部，其将各频率子带的音频信号变换为频谱信号;频谱分割部， 标准化部分，其通过比例因子对每个光谱信号进行归一化，并产生归一化的光谱信号;量化部分，其对每个归一化的光谱信号进行量化并产生量化的光谱信号;比例因子调节部分，其调整所使用的比例因子的值 根据归一化光谱信号和量化光谱信号的归一化部分，以及对归一化部分使用的至少每个量化光谱信号和比例因子进行编码的编码部分或由比例因子调整部分调整的比例因子。 比例因子调整部分适于将归一化频谱信号的能量的差异与量化频谱信号的能量的绝对值与每个频率子带的第一阈值进行比较，并且如果 差大于第一阈值，调整归一化部使用的比例因子的值，以使能量差的绝对值不大于第二阈值。

公开(公告)号：US07583804B2

公开(公告)日：2009-09-01

申请号：US10534175

申请日：2003-10-10

申请人： Shiro Suzuki ,  Minoru Tsuji ,  Keisuke Toyama

发明人： Shiro Suzuki ,  Minoru Tsuji ,  Keisuke Toyama

IPC分类号： H04R5/00

CPC分类号： G10L19/028

摘要： In an audio-information encoding apparatus, in order to encode an audio signal containing a white-noise component, an index iL indicating the energy level of the white-noise component and an index iR designating the start index of a random-number table are introduced into a code train. In an audio-information decoding apparatus (20), a white-noise generating unit (25) uses the indices iL and iR contained in the code train, thereby generating a white-noise signal Sw(t) on the time axis, which has the same level as the white noise, and an adder (26) adds the white-noise signal to an audio signal Sf(t) decoded on the time axis, outputting as an output audio signal So(t).

摘要翻译： 在音频信息编码装置中，为了对包含白噪声分量的音频信号进行编码，指示白噪声分量的能级的索引iL和指定随机数表的起始索引的索引iR是 引入代码列表。 在音频信息解码装置（20）中，白噪声产生单元（25）使用代码串中包含的索引iL和iR，从而在时间轴上产生白噪声信号Sw（t） 与白噪声相同，并且加法器26将白噪声信号与在时间轴上解码的音频信号Sf（t）相加，作为输出音频信号So（t）输出。

公开(公告)号：US20080184258A1

公开(公告)日：2008-07-31

申请号：US11957723

申请日：2007-12-17

申请人： Keisuke Toyama

发明人： Keisuke Toyama

IPC分类号： G06F9/50

CPC分类号： G06F21/57 ,  G06F9/468

摘要： Multiple operating systems are operated on a multi-core system without applying any changes to the operating systems, and unauthorized function invocation and unauthorized data access among the operating systems are detected, thereby assuring high reliability. Access authorization is checked at two levels. At the upper level, a database managed by the multiple operating systems is provided. The database describes which procedure/function, task, or the like can be used to call a function. With reference to this information, it is determined whether invocation of the function has been authorized, by using an invocation authorization management program. At the lower level, access authorization for access to a memory eventually reached when the invocation processing is converted is checked by an access authorization management module using hardware.

摘要翻译： 多操作系统在多核系统上运行，而不对操作系统进行任何更改，并且检测到操作系统之间的未经授权的功能调用和未经授权的数据访问，从而确保高可靠性。 访问授权在两个级别进行检查。 在上层，提供由多个操作系统管理的数据库。 数据库描述可以使用哪个过程/功能，任务等来调用函数。 参考该信息，通过使用调用授权管理程序确定是否授权了该功能的调用。 在较低级别，通过使用硬件的访问授权管理模块检查调用处理转换时最终达到的存取访问权限。