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1. 发明授权

US6115687A Sound reproducing speed converter 失效
标题翻译：声音再现速度转换器
公开(公告)号：US6115687A
公开(公告)日：2000-09-05
申请号：US91823
申请日：1998-07-01
申请人： Naoya Tanaka , Hiroaki Takeda
发明人： Naoya Tanaka , Hiroaki Takeda
IPC分类号： G10L21/04 , G10L13/02
CPC分类号： G10L21/04
摘要： An apparatus and method that reproduces a voice signal at different rates without a change in pitch. Neighboring voice waveforms having a same length and minimum form differences from an input voice signal are selected and overlapped. An output voice waveform is then generated that is rate converted by replacing a part of the voice waveform of the input voice signal with the overlapped voice waveforms, or, alternatively, by inserting the overlapped voice waveforms into the voice waveform of the input voice signal.
摘要翻译： PCT No.PCT / JP97 / 04077 Sec。 371日期：1998年7月1日 102（e）日期1998年7月1日PCT 1997年11月10日PCT公布。第WO98 / 21710号公报日期1998年5月22日一种在不改变音调的情况下以不同速率再现语音信号的装置和方法。选择并重叠与输入语音信号具有相同长度和最小形式差异的相邻语音波形。然后产生通过用重叠的语音波形替换输入的语音信号的一部分语音波形来进行速率转换的输出语音波形，或者替代地，通过将重叠的语音波形插入到输入的语音信号的语音波形中。

2. 发明授权

US08108222B2 Encoding device and decoding device 有权
标题翻译：编码设备和解码设备
公开(公告)号：US08108222B2
公开(公告)日：2012-01-31
申请号：US12836900
申请日：2010-07-15
申请人： Mineo Tsushima , Takeshi Norimatsu , Kosuke Nishio , Naoya Tanaka
发明人： Mineo Tsushima , Takeshi Norimatsu , Kosuke Nishio , Naoya Tanaka
IPC分类号： G10L21/00
CPC分类号： G10L21/038 , G10L19/0208 , G10L19/0212
摘要： An encoding device (200) includes an MDCT unit (202) that transforms an input signal in a time domain into a frequency spectrum including a lower frequency spectrum, a BWE encoding unit (204) that generates extension data which specifies a higher frequency spectrum at a higher frequency than the lower frequency spectrum, and an encoded data stream generating unit (205) that encodes to output the lower frequency spectrum obtained by the MDCT unit (202) and the extension data obtained by the BWE encoding unit (204). The BWE encoding unit (204) generates as the extension data (i) a first parameter which specifies a lower subband which is to be copied as the higher frequency spectrum from among a plurality of the lower subbands which form the lower frequency spectrum obtained by the MDCT unit (202) and (ii) a second parameter which specifies a gain of the lower subband after being copied.
摘要翻译：一种编码装置（200）包括：将时域中的输入信号变换成包括较低频谱的频谱的MDCT单元（202），生成扩展数据的BWE编码单元（204），其生成指定较高频谱的扩展数据频率高于较低频谱的编码数据流生成单元（205），其编码为输出由MDCT单元（202）获得的较低频谱和由BWE编码单元（204）获得的扩展数据。 BWE编码单元（204）生成作为扩展数据（i）的第一参数，该第一参数指定要从多个下个子带中复制的较低子带作为较高频谱，其形成由 MDCT单元（202）和（ii）指定复制后下一个子带的增益的第二参数。

3. 发明授权

US08046217B2 Geometric calculation of absolute phases for parametric stereo decoding 有权
标题翻译：用于参数立体声解码的绝对相位的几何计算
公开(公告)号：US08046217B2
公开(公告)日：2011-10-25
申请号：US11660094
申请日：2005-08-02
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： G10L19/14 , G10L19/00 , G10L19/02
CPC分类号： G10L19/008 , H04S3/00
摘要： An audio decoder which reproduces original signals from a bit stream including (i) a downmix signal of the original signals, and (ii) supplementary information indicating a gain ratio D and phase difference θ between the original signals. The audio decoder includes: a decoding unit extracting the downmix signal; a transformation unit transforming the extracted downmix signal into a frequency domain signal; a phase rotator determination unit determining two phase rotators having, as the phase rotation angles, angles α and β respectively obtained by dividing a contained angle by a diagonal of a parallelogram; a separation unit separating the frequency domain signal into two separation signals respectively indicating angles α and β as phase differences between the signals and the decoded downmix signal; and an inverse transformation unit inversely transforming the respective two separation signals into time domain signals so as to reproduce the two audio signals.
摘要翻译：一种从比特流再现原始信号的音频解码器，包括（i）原始信号的下混信号，以及（ii）指示增益比D和相位差的补充信息; 之间的原始信号。音频解码器包括：提取下混合信号的解码单元; 变换单元，将提取的下混合信号变换为频域信号; 相位旋转器确定单元确定具有角度α和＆lt; bgr的相位旋转角度的两个相位旋转器; 分别通过将包含的角度除以平行四边形的对角线而获得; 分离单元，将频域信号分离成分别表示角度α和＆lt; bgr的两个分离信号; 作为信号与解码缩混信号之间的相位差; 以及逆变换单元，将相应的两个分离信号逆变换为时域信号，以再现两个音频信号。

4. 发明授权

US07974837B2 Audio encoding apparatus, audio decoding apparatus, and audio encoded information transmitting apparatus 有权
标题翻译：音频编码装置，音频解码装置和音频编码信息发送装置
公开(公告)号：US07974837B2
公开(公告)日：2011-07-05
申请号：US11993395
申请日：2006-06-21
申请人： Naoya Tanaka
发明人： Naoya Tanaka
IPC分类号： G10L11/04
CPC分类号： G10L19/097 , G10L19/022 , G10L19/09 , G10L21/04
摘要： The encoding apparatus includes an MDCT unit which transforms an inputted audio signal into a frequency parameter, for every predetermined time-frequency transformation frame length, and an MDCT coefficient encoding unit which encodes the frequency parameter. The encoding apparatus also includes a pitch cycle detection unit which detects a pitch cycle of the audio signal, a framing unit which frames the audio signal based on the detected pitch cycle, and a waveform modification unit which performs waveform modification on the audio signal framed based on the pitch cycle, in conformance with the time-frequency transformation frame length, and outputs the waveform-modified audio signal to the MDCT unit. A multiplex unit multiplexes the frequency parameter encoded by MDCT coefficient encoding unit and the pitch cycle, and outputs the multiplexed result as a bitstream.
摘要翻译：编码装置包括：对于每个预定的时间 - 频率变换帧长度，将输入的音频信号变换为频率参数的MDCT单元和对频率参数进行编码的MDCT系数编码单元。编码装置还包括：音调周期检测单元，其检测音频信号的音调周期;基于检测到的音调周期对音频信号进行帧化的成帧单元;以及波形修改单元，对基于帧的音频信号进行波形修改在音调周期上，与时间 - 频率变换帧长度一致，并将波形修正音频信号输出到MDCT单元。多路复用单元复用由MDCT系数编码单元编码的频率参数和音调周期，并将多路复用结果输出为比特流。

5. 发明授权

US07783496B2 Encoding device and decoding device 有权
标题翻译：编码设备和解码设备
公开(公告)号：US07783496B2
公开(公告)日：2010-08-24
申请号：US12370203
申请日：2009-02-12
申请人： Mineo Tsushima , Takeshi Norimatsu , Kosuke Nishio , Naoya Tanaka
发明人： Mineo Tsushima , Takeshi Norimatsu , Kosuke Nishio , Naoya Tanaka
IPC分类号： G10L21/00
CPC分类号： G10L21/038 , G10L19/0208 , G10L19/0212
摘要： An encoding device (200) includes an MDCT unit (202) that transforms an input signal in a time domain into a frequency spectrum including a lower frequency spectrum, a BWE encoding unit (204) that generates extension data which specifies a higher frequency spectrum at a higher frequency than the lower frequency spectrum, and an encoded data stream generating unit (205) that encodes to output the lower frequency spectrum obtained by the MDCT unit (202) and the extension data obtained by the BWE encoding unit (204). The BWE encoding unit (204) generates as the extension data (i) a first parameter which specifies a lower subband which is to be copied as the higher frequency spectrum from among a plurality of the lower subbands which form the lower frequency spectrum obtained by the MDCT unit (202) and (ii) a second parameter which specifies a gain of the lower subband after being copied.
摘要翻译：一种编码装置（200）包括：将时域中的输入信号变换成包括较低频谱的频谱的MDCT单元（202），生成扩展数据的BWE编码单元（204），其生成指定较高频谱的扩展数据频率高于较低频谱的编码数据流生成单元（205），其编码为输出由MDCT单元（202）获得的较低频谱和由BWE编码单元（204）获得的扩展数据。 BWE编码单元（204）生成作为扩展数据（i）的第一参数，该第一参数指定要从多个下个子带中复制的较低子带作为较高频谱，其形成由 MDCT单元（202）和（ii）指定复制后下一个子带的增益的第二参数。

6. 再颁专利

USRE40968E1 Encoding and decoding apparatus of LSP (line spectrum pair) parameters 有权
标题翻译： LSP（线谱对）编码和解码装置参数
公开(公告)号：USRE40968E1
公开(公告)日：2009-11-10
申请号：US09948181
申请日：2001-11-02
申请人： Naoya Tanaka
发明人： Naoya Tanaka
IPC分类号： G10L19/04
CPC分类号： G10L19/07 , G10L25/06
摘要： An encoding and decoding apparatus quantizes LSP (Line Spectrum Pair) parameters, which are characteristics parameters of spectrum information included in a voice signal, with high accuracy and stability. This encoding and decoding apparatus comprises a first quantizer in which quantization is performed independently in the unit of one frame, and a second quantizer which uses a correlation between adjacent frames. An error comparator compares quantization errors produced by the first quantizer and quantization errors produced by the second quantizer to select the one quantizer whose quantization errors are less than that of the other quantizer. The first quantizer produces a highly accurate quantization with stability regardless a condition of an input voice signal, while the second quantizer produces a highly accurate quantization when input voice signal stays quasi-stationary. By switching these two quantizers, this apparatus can offer stable and highly accurate quantization regardless of the condition of the input voice signal.
摘要翻译：编码和解码装置以高精度和稳定性量化作为包括在语音信号中的频谱信息的特征参数的LSP（线谱对）参数。这种编码和解码装置包括第一量化器，其中以一帧为单位独立地执行量化，以及使用相邻帧之间的相关性的第二量化器。误差比较器比较由第一量化器产生的量化误差和由第二量化器产生的量化误差，以选择其量化误差小于另一量化器的量化器的量化器。无论输入语音信号的条件如何，第一量化器产生具有稳定性的高精度量化，而当输入语音信号保持准静止时，第二量化器产生高度准确的量化。通过切换这两个量化器，无论输入语音信号的状况如何，该装置都可以提供稳定和高精度的量化。

7. 发明授权

US07581473B2 Tool holder and machine tool equipped with the tool holder 有权
标题翻译：刀架和机床配备刀架
公开(公告)号：US07581473B2
公开(公告)日：2009-09-01
申请号：US12115593
申请日：2008-05-06
申请人： Naoya Tanaka , Yoshiya Katsu , Takamori Izaki
发明人： Naoya Tanaka , Yoshiya Katsu , Takamori Izaki
IPC分类号： B23B19/00 , B23B23/00
CPC分类号： B23Q5/046 , B23B11/00 , B23B41/02 , B23Q1/0063 , Y10T29/5114 , Y10T82/2579 , Y10T82/2589 , Y10T279/1004 , Y10T279/29 , Y10T409/309296
摘要： The present invention provides a tool holder interchangeably attached to a machine tool such as a combined machining lathe. A combined machining lathe 1 comprises main spindles 20 and 30 for gripping a workpiece, and a machining main spindle head 50 which rotates around a B axis. There are provided stockers S1 and S2 inside the lathe, and tool holders 200 and 300 are respectively stored in the stockers S1 and S2. The tool holder 200 comprises a taper shank portion 230 of a main shaft in a housing 210 and four pull studs PS2 around the taper shank portion 230 of a main shaft, and is gripped by collet chucks of the machining main spindle head 50. Rotation of the taper shank portion 230 of a main shaft is transmitted to a shaft 250 via a gear mechanism, to drive a drill tool 252 to drill a deep hole.
摘要翻译：本发明提供了一种可互换地连接到诸如组合加工车床的机床的工具架。组合加工车床1包括用于夹持工件的主轴20和30以及围绕B轴旋转的加工主轴头50。在车床内设置有储料器S1和S2，刀架200和300分别存储在储料器S1和S2中。工具架200包括壳体210中的主轴的锥形柄部分230和围绕主轴的锥形柄部分230周围的四个拉杆PS2，并且被加工主轴头50的夹头卡盘夹紧。旋转主轴的锥形柄部230通过齿轮机构传递到轴250，以驱动钻具252钻深孔。

8. 发明授权

US07509254B2 Encoding device and decoding device 有权
标题翻译：编码设备和解码设备
公开(公告)号：US07509254B2
公开(公告)日：2009-03-24
申请号：US11508915
申请日：2006-08-24
申请人： Mineo Tsushima , Takeshi Norimatsu , Kosuke Nishio , Naoya Tanaka
发明人： Mineo Tsushima , Takeshi Norimatsu , Kosuke Nishio , Naoya Tanaka
IPC分类号： G10L19/00
CPC分类号： G10L21/038 , G10L19/0208 , G10L19/0212
摘要： An encoding device (200) includes an MDCT unit (202) that transforms an input signal in a time domain into a frequency spectrum including a lower frequency spectrum, a BWE encoding unit (204) that generates extension data which specifies a higher frequency spectrum at a higher frequency than the lower frequency spectrum, and an encoded data stream generating unit (205) that encodes to output the lower frequency spectrum obtained by the MDCT unit (202) and the extension data obtained by the BWE encoding unit (204). The BWE encoding unit (204) generates as the extension data (i) a first parameter which specifies a lower subband which is to be copied as the higher frequency spectrum from among a plurality of the lower subbands which form the lower frequency spectrum obtained by the MDCT unit (202) and (ii) a second parameter which specifies a gain of the lower subband after being copied.
摘要翻译：一种编码装置（200）包括：将时域中的输入信号变换成包括较低频谱的频谱的MDCT单元（202），生成扩展数据的BWE编码单元（204），其生成指定较高频谱的扩展数据频率高于较低频谱的编码数据流生成单元（205），其编码为输出由MDCT单元（202）获得的较低频谱和由BWE编码单元（204）获得的扩展数据。 BWE编码单元（204）生成作为扩展数据（i）的第一参数，该第一参数指定要从多个下个子带中复制的较低子带作为较高频谱，其形成由 MDCT单元（202）和（ii）指定复制后下一个子带的增益的第二参数。

9. 发明申请

US20090030704A1 ACOUSTIC SIGNAL ENCODING DEVICE, AND ACOUSTIC SIGNAL DECODING DEVICE 有权
标题翻译：声音信号编码装置和声音信号解码装置
公开(公告)号：US20090030704A1
公开(公告)日：2009-01-29
申请号：US11577151
申请日：2005-10-13
申请人： Yoshiaki Takagi , Naoya Tanaka
发明人： Yoshiaki Takagi , Naoya Tanaka
IPC分类号： G10L21/04
CPC分类号： G10L19/008 , H04S3/006
摘要： An acoustic signal encoding device for down-mixing at different ratios to encode a multichannel signal with a small number of channels, and an acoustic signal decoding device for decoding the signal encoded by the acoustic signal encoding device. In these devices, weighting means (103) in the acoustic signal encoding device (100) weights input signals of two channels individually according to a down-mixing coefficient thereby to calculate the level difference of the signals of two channels weighted by a level difference calculation unit (104). A separating unit (202) in the acoustic signal decoding device (200) separates the down-mixed signals into signals of two channels with the level difference information weighted.
摘要翻译：一种声信号编码装置，用于以不同的比率进行下混合以对具有少量声道的多声道信号进行编码，以及用于对由声信号编码装置编码的信号进行解码的声信号解码装置。在这些装置中，声信号编码装置（100）中的加权装置（103）根据下混系数分别对两个信道的输入信号进行加权，从而计算由电平差计算加权的两个信道的信号的电平差单元（104）。声信号解码装置（200）中的分离单元（202）将加密的电平差信息将下混合信号分离成两个信道的信号。

10. 发明申请

US20080059203A1 Audio Encoding Device, Decoding Device, Method, and Program 有权
标题翻译：音频编码装置，解码装置，方法和程序
公开(公告)号：US20080059203A1
公开(公告)日：2008-03-06
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 (110) has: difference degree calculation units (101, 102, and 103) for calculating a difference degree between the first and second input signals, depending on a segmentation method A, B, or C for segmenting a frequency band into sub-bands; a selection unit (104) for selecting one of the segmentation methods; and a difference degree and segmentation information encoding unit (105) for encoding the selected method and the difference degree for each sub-band by the method. A variable frequency segment decoding unit (210) has: a segmentation information decoding unit 202 for decoding the segmentation information to learn the segmentation method; a switching unit (203) for outputting a difference degree code to one of difference degree decoding units corresponding to the segmentation method; and difference degree decoding units (204, 205, and 206), 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（110）具有：用于计算第一和第二输入信号之间的差值的差分计算单元（101,102和103），这取决于分段方法A，B或C，用于分割频带变成子带; 选择单元（104），用于选择所述分割方法之一; 以及用于通过该方法对所选择的方法和每个子带的差分度进行编码的差分度和分割信息编码单元（105）。可变频段解码单元（210）具有：分割信息解码单元202，对分割信息进行解码以学习分割方法; 切换单元，用于将差分度码输出到与分割方法对应的差分度解码单元之一; 和差分度解码单元（204,205和206），用于将差分度码解码为每个子带的差分度。

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