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31. 发明申请

US20090259478A1 Audio Decoding Apparatus and Decoding Method and Program 有权
标题翻译：音频解码装置和解码方法和程序
公开(公告)号：US20090259478A1
公开(公告)日：2009-10-15
申请号：US12393316
申请日：2009-02-26
申请人： Toshiyuki Nomura , Osamu Shimada , Yuichiro Takamizawa , Masahiro Serizawa , Naoya Tanaka , Mineo Tsushima , Takeshi Norimatsu , Kok Seng Chong , Kim Hann Kuah , Sua Hong Neo
发明人： Toshiyuki Nomura , Osamu Shimada , Yuichiro Takamizawa , Masahiro Serizawa , Naoya Tanaka , Mineo Tsushima , Takeshi Norimatsu , Kok Seng Chong , Kim Hann Kuah , Sua Hong Neo
IPC分类号： G10L19/00
CPC分类号： G10L21/038 , G10L19/032
摘要： An energy corrector (105) for correcting a target energy for high-frequency components and a corrective coefficient calculator (106) for calculating an energy corrective coefficient from low-frequency subband signals are newly provided. These processors perform a process for correcting a target energy that is required when a band expanding process is performed on a real number only. Thus, a real subband combining filter and a real band expander which require a smaller amount of calculations can be used instead of a complex subband combining filter and a complex band expander, while maintaining a high sound-quality level, and the required amount of calculations and the apparatus scale can be reduced.
摘要翻译：新提供了用于校正高频分量的目标能量的能量校正器（105）和用于从低频子带信号计算能量校正系数的校正系数计算器（106）。这些处理器执行用于校正仅对实数执行频带扩展处理时所需的目标能量的处理。因此，可以使用需要较少量的计算的真实子带组合滤波器和实频扩展器来代替复数子带组合滤波器和复频带扩展器，同时保持高音质水平，并且所需的计算量并且可以减少设备规模。

32. 发明授权

US07343292B2 Audio encoder utilizing bandwidth-limiting processing based on code amount characteristics 有权
标题翻译：音频编码器利用基于码量特性的带宽限制处理
公开(公告)号：US07343292B2
公开(公告)日：2008-03-11
申请号：US10399101
申请日：2001-10-11
申请人： Yuichiro Takamizawa , Toshiyuki Nomura
发明人： Yuichiro Takamizawa , Toshiyuki Nomura
IPC分类号： G10L19/00 , G10L21/00
CPC分类号： G10L19/0212 , G10L19/002 , G10L19/0204
摘要： A mapping transform unit subjects input audio signals to a mapping transform and generates frequency region signals that take frequency as a variable; a code amount designation unit supplies a preset coding bit rate as a code amount output; a frequency region signal compression encoder, based on the code amount, subjects input frequency region signals to a compression encoding process and generates a bitstream; and a bandwidth-limiting unit executes a bandwidth-limiting processing in which a part of the frequency zone covered by frequency region signals is allotted to an attenuation frequency zone, and in which the value of the frequency region signal is multiplied by an attenuation coefficient having a value less than 1 in the attenuation frequency zone to attenuate the frequency region signal in the attenuation frequency zone, and supplies the frequency region signals that have undergone the bandwidth-limiting processing to the frequency region signal compression encoder.
摘要翻译：输入变换单元对输入音频信号进行映射变换，生成将频率作为变量的频域信号; 代码量指定单元将预设编码比特率提供为代码量输出; 频率区域信号压缩编码器基于代码量，将输入频率区域信号转化为压缩编码处理并生成比特流; 并且带宽限制单元执行带宽限制处理，其中由频域信号覆盖的频域的一部分被分配给衰减频带，并且其中频域信号的值乘以具有在衰减频率区域中小于1的值，以衰减衰减频带中的频域信号，并将经过带宽限制处理的频域信号提供给频域信号压缩编码器。

33. 发明授权

US07251598B2 Speech coder/decoder 有权
标题翻译：语音编码器/解码器
公开(公告)号：US07251598B2
公开(公告)日：2007-07-31
申请号：US11209802
申请日：2005-08-24
申请人： Toshiyuki Nomura
发明人： Toshiyuki Nomura
IPC分类号： G10L19/12
CPC分类号： G10L19/10 , G10L19/24
摘要： A coding parameter control circuit 31 computes a frame length from a bit rate and coding delay, and provides the computed frame length data to a CELP coding circuit 32. Based on the computed frame length, the coding parameter control circuit 32 selects control parameters from a table, in which a plurality of control parameters for controlling the operation of the CELP coding circuit are stored, and provides the selected control parameters to the CELP coding circuit. The coding parameter control circuit provides the sub-frame length, and bit number distributed to the multi-pulse signal to the multi-pulse signal generation parameter setting circuit 33. The multi-pulse signal coding parameter setting circuit 33 computes a pulse number of the multi-pulse excitation signal, pulse position candidates of each pulse and candidate positions thereof from the sub-frame length and bit number of multi-pulse signal.
摘要翻译：编码参数控制电路31根据比特率和编码延迟来计算帧长度，并将计算出的帧长度数据提供给CELP编码电路32.编码参数控制电路32基于计算出的帧长度，从表，其中存储用于控制CELP编码电路的操作的多个控制参数，并将所选择的控制参数提供给CELP编码电路。编码参数控制电路向多脉冲信号生成参数设置电路33提供子帧长度和分配给多脉冲信号的位数。多脉冲信号编码参数设置电路33计算脉冲数多脉冲激励信号，每个脉冲的脉冲位置候选和其子帧长度的候选位置以及多脉冲信号的位数。

34. 发明授权

US07058571B2 Audio decoding apparatus and method for band expansion with aliasing suppression 有权
标题翻译：用于具有混叠抑制的频带扩展的音频解码装置和方法
公开(公告)号：US07058571B2
公开(公告)日：2006-06-06
申请号：US10491894
申请日：2003-07-30
申请人： Mineo Tsushima , Naoya Tanaka , Takeshi Norimatsu , Kok Seng Chong , Kim Hann Kuah , Sua Hong Neo , Toshiyuki Nomura , Osamu Shimada , Yuichiro Takamizawa , Masahiro Serizawa
发明人： Mineo Tsushima , Naoya Tanaka , Takeshi Norimatsu , Kok Seng Chong , Kim Hann Kuah , Sua Hong Neo , Toshiyuki Nomura , Osamu Shimada , Yuichiro Takamizawa , Masahiro Serizawa
IPC分类号： G10L21/02
CPC分类号： G10L21/038 , G10L19/02
摘要： A wideband, high quality audio signal is decoded with few calculations at a low bitrate. Unwanted spectrum components accompanying sinusoidal signal injection by a synthesis subband filter built with real-value operations are suppressed by inserting a suppression signal to subbands adjacent to the subband to which the sine wave is injected. This makes it possible to inject a desired sinusoid with few calculations.
摘要翻译：宽带，高质量的音频信号以低比特率进行少量计算解码。通过用实数值操作构建的合成子带滤波器伴随正弦信号注入的不需要的频谱分量通过将抑制信号插入到与正弦波被注入的子带相邻的子带来被抑制。这样可以很少的计算注入所需的正弦波。

35. 发明申请

US20050149339A1 Audio decoding apparatus and method 有权
标题翻译：音频解码装置和方法
公开(公告)号：US20050149339A1
公开(公告)日：2005-07-07
申请号：US10496798
申请日：2003-09-11
申请人： Naoya Tanaka , Osamu Shimada , Mineo Tsushima , Takeshi Norimatsu , Kok Seng Chong , Kim Hann Kuah , Sua Hong Neo , Toshiyuki Nomura , Yuichiro Takamizawa , Masahiro Serizawa
发明人： Naoya Tanaka , Osamu Shimada , Mineo Tsushima , Takeshi Norimatsu , Kok Seng Chong , Kim Hann Kuah , Sua Hong Neo , Toshiyuki Nomura , Yuichiro Takamizawa , Masahiro Serizawa
IPC分类号： G10L19/08 , G10L21/02 , H03M7/30 , G10L19/00
CPC分类号： G10L21/038 , G10L19/0204
摘要： An audio decoding apparatus decodes high frequency component signals using a band expander that generates multiple high frequency subband signals from low frequency subband signals divided into multiple subbands and transmitted high frequency encoded information. The apparatus is provided with an aliasing detector and an aliasing remover. The aliasing detector detects the degree of occurrence of aliasing components in the multiple high frequency subband signals generated by the band expander. The aliasing remover suppresses aliasing components in the high frequency subband signals by adjusting the gain used to generate the high frequency subband signals. Thus occurrence of aliasing can be suppressed and the resulting degradation in sound quality can be reduced, even when real-valued subband signals are used in order to reduce the number of operations.
摘要翻译：音频解码装置利用频带扩展器对高频分量信号进行解码，频带扩展器从分割成多个子带的低频子带信号和发送的高频编码信息生成多个高频子带信号。该装置设置有混叠检测器和混叠去除器。混叠检测器检测由频带扩展器产生的多个高频子带信号中的混叠分量的出现程度。混叠去除器通过调整用于产生高频子带信号的增益来抑制高频子带信号中的混叠分量。因此，即使使用实值子带信号以减少操作次数，也可以抑制混叠的发生，并且可以降低所产生的声音质量下降。

36. 发明授权

US5862518A Speech decoder for decoding a speech signal using a bad frame masking unit for voiced frame and a bad frame masking unit for unvoiced frame 失效
标题翻译：语音解码器，用于使用用于有声帧的坏帧屏蔽单元和用于无声帧的坏帧屏蔽单元来解码语音信号
公开(公告)号：US5862518A
公开(公告)日：1999-01-19
申请号：US172171
申请日：1993-12-23
申请人： Toshiyuki Nomura , Kazunori Ozawa
发明人： Toshiyuki Nomura , Kazunori Ozawa
IPC分类号： G10L11/06 , G10L19/00 , G10L19/04 , G10L19/08 , G10L3/02
CPC分类号： G10L25/93 , G10L19/005
摘要： A receiving unit receives input speech data on a frame-by-frame basis. An error detection unit checks whether errors exist in each frame, and outputs a signal indicative thereof to a first switch circuit. The first switch circuit outputs the input speech data to a second switch circuit if an error is detected, while it outputs the input speech data to a speech decoder unit if no error is detected. A data memory stores the input speech data after delaying the data by one frame, and outputs the delayed data to a bad frame masking unit for voiced frame, and a bad frame masking unit for unvoiced frame. The speech decoder unit decodes the input speech data by using spectral parameter data, delay of an adaptive codebook, an index of an excitation codebook, gains of the adaptive and excitation codebooks, and the amplitude of the input speech signal. The speech decoder unit outputs a decoding result to a voiced/unvoiced frame judging unit, as well as to an output terminal. The voiced/unvoiced frame judging unit determines whether a current frame is a voiced frame or an unvoiced frame, and outputs the result of the check to a second switch circuit. The second switch circuit outputs the input data to the bad frame masking unit for voiced frame if it is determined that the current frame is a voiced frame, and it outputs the input data to the bad frame masking unit for unvoiced frame if it is determined that the current frame is an unvoiced frame.
摘要翻译：接收单元在逐帧的基础上接收输入语音数据。错误检测单元检查每帧中是否存在错误，并且将表示其的信号输出到第一开关电路。如果检测到错误，则第一开关电路将输入语音数据输出到第二开关电路，而如果没有检测到错误则将输入语音数据输出到语音解码器单元。数据存储器在将数据延迟一帧之后存储输入语音数据，并将延迟的数据输出到用于浊音帧的坏帧屏蔽单元，以及用于无声帧的坏帧屏蔽单元。语音解码器单元通过使用频谱参数数据，自适应码本的延迟，激励码本的索引，自适应和激励码本的增益以及输入语音信号的幅度来解码输入语音数据。语音解码器单元将解码结果输出到有声/无声帧判断单元以及输出终端。有声/无声帧判断单元确定当前帧是有声帧还是无声帧，并将检查结果输出到第二开关电路。如果确定当前帧是有声帧，则第二开关电路将输入数据输出到用于浊音帧的坏帧屏蔽单元，并且如果确定输入数据被确定为无声帧，则将输入数据输出到坏帧屏蔽单元当前帧是无声帧。

37. 发明授权

US5757306A Vector quantization with a control circuit for input and predicted vector quantization 失效
标题翻译：用于输入和预测矢量量化的控制电路的矢量量化
公开(公告)号：US5757306A
公开(公告)日：1998-05-26
申请号：US517766
申请日：1995-08-22
申请人： Toshiyuki Nomura
发明人： Toshiyuki Nomura
IPC分类号： G10L19/04 , G06T9/00 , G10L19/00 , H03M7/00
CPC分类号： G06T9/008 , H04N19/94
摘要： In a vector quantizer device including an input vector quantizer (11) for a current input vector of an input vector sequence to produce a first quantized vector and a predicted vector quantizer (13) responsive to the input vector sequence for quantizing into a second predicted vector a predicted vector predictive of the current input vector with quantization, a predicting unit (37) produces the predicted vector in response to a predetermined number of output vectors including such first and second quantized vectors. Responsive to a prediction error vector between the current input and the predicted vectors, a control circuit (35) controls, at a time, input and output switches (31, 33) to supply the input vector sequence to only one selected quantizer of the input and the predicted vector quantizers and to produce as one of the output vectors one of the first and the second quantized vectors that is produced by the selected quantizer. The first and the second quantized vectors are produced as two of the output vectors when the prediction error vector is greater and smaller than a threshold value, respectively.
摘要翻译：在矢量量化器装置中，包括用于产生第一量化矢量的输入矢量序列的当前输入矢量的输入矢量量化器（11）和响应于输入矢量序列量化为第二预测矢量的预测矢量量化器（13）预测单元（37）响应于包括这样的第一和第二量化向量的预定数量的输出向量产生预测向量。响应于当前输入和预测向量之间的预测误差向量，控制电路（35）一次控制输入和输出开关（31,33），以将输入矢量序列提供给输入的一个选择的量化器和预测矢量量化器，并且产生由所选量化器产生的第一和第二量化矢量之一的输出矢量之一。当预测误差矢量分别大于和小于阈值时，第一和第二量化矢量被产生为两个输出矢量。

38. 发明授权

US5499254A Apparatus for error-correct decoding in a digital data communications system 失效
标题翻译：用于在数字数据通信系统中进行纠错解码的装置
公开(公告)号：US5499254A
公开(公告)日：1996-03-12
申请号：US299237
申请日：1994-08-31
申请人： Masao Ikekawa , Toshiyuki Nomura
发明人： Masao Ikekawa , Toshiyuki Nomura
IPC分类号： H03M13/41 , H04L1/00 , G06F11/10 , H03M13/12
CPC分类号： H03M13/41 , H04L1/0054
摘要： In order to effectively error-correct decode a plurality of data frames transmitted over a noisy transmission channel, control data is applied to a maximum-likelihood decoder such as to change decoding parameters thereof. The control data is generated based on frame characteristic information obtained from at least one data frame which precedes a data frame currently decoded at the maximum-likelihood decoder. Thus, the error-correct decoding is implemented using estimated correlation between at least two consecutive data frames one of which is under error-correct decoding. Further, a cyclic code decoder is provided in a receiver for checking a transmission error in the output of the maximum-likelihood decoder. The cyclic code decoder issues a check result which is used to change the contents of the control data.
摘要翻译：为了对通过噪声传输信道发送的多个数据帧进行有效的错误校正解码，将控制数据应用于最大似然解码器，以便改变其解码参数。控制数据基于从在最大似然解码器当前解码的数据帧之前的至少一个数据帧获得的帧特性信息生成。因此，使用至少两个连续的数据帧之间的估计的相关性来实现错误校正解码，其中之一是错误纠正解码。此外，循环码解码器被提供在用于检查最大似然解码器的输出中的传输错误的接收机中。循环码解码器发出用于改变控制数据内容的检查结果。

39. 发明授权

US4395226A Combustion safety apparatus 失效
标题翻译：燃烧安全装置
公开(公告)号：US4395226A
公开(公告)日：1983-07-26
申请号：US178346
申请日：1980-08-14
申请人： Masakatsu Nakanishi , Toshiyuki Nomura
发明人： Masakatsu Nakanishi , Toshiyuki Nomura
IPC分类号： F23N5/00 , F23N5/24
CPC分类号： F23N5/006 , F23N5/24
摘要： A combustion safety apparatus wherein combustion exhaust gas of a burner is arranged to be introduced into a detecting tube having a tubular oxygen concentration cell element, and a safety valve is arranged to be controlled in operation by the output of the cell element. The detecting tube is in communication at its outlet opening with a mixing tube of the foregoing burner or another burner.
摘要翻译：一种燃烧安全装置，其特征在于，燃烧器的燃烧废气被配置成被引入具有管状氧浓度电池元件的检测管中，安全阀被配置为通过电池元件的输出进行控制。检测管在其出口处与上述燃烧器或另一燃烧器的混合管连通。

40. 发明授权

US4340357A Infrared radiation gas burner plate 失效
标题翻译：红外辐射气体燃烧器板
公开(公告)号：US4340357A
公开(公告)日：1982-07-20
申请号：US78703
申请日：1979-09-25
申请人： Michimasa Kito , Toshiyuki Nomura
发明人： Michimasa Kito , Toshiyuki Nomura
IPC分类号： F23D14/14 , F23D13/12
CPC分类号： F23D14/14
摘要： This invention relates to an infrared radiation gas burner plate of the type that a plate member composed chiefly of ceramic is provided with a large number of distributed burner holes therethrough.
摘要翻译：本发明涉及一种红外辐射气体燃烧器板，其特征在于，主要由陶瓷构成的板构件设置有大量分布的燃烧器孔。

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