公开(公告)号：US20080052087A1

公开(公告)日：2008-02-28

申请号：US11907922

申请日：2007-10-18

申请人： Hirohisa Tasaki

发明人： Hirohisa Tasaki

IPC分类号： G10L19/00

CPC分类号： H04B1/667 ,  G10L19/167

摘要： A sound encoder multiplexes a plurality of codes into a sound code in an order determined by a multiplexing order determination unit (12), and a sound decoder demultiplexes the sound code into a plurality of codes one by one in an order determined by a demultiplexing order determination unit (14).

公开(公告)号：US20080052086A1

公开(公告)日：2008-02-28

申请号：US11907921

申请日：2007-10-18

申请人： Hirohisa Tasaki

发明人： Hirohisa Tasaki

IPC分类号： G10L19/00

CPC分类号： H04B1/667 ,  G10L19/167

摘要： A sound encoder multiplexes a plurality of codes into a sound code in an order determined by a multiplexing order determination unit (12), and a sound decoder demultiplexes the sound code into a plurality of codes one by one in an order determined by a demultiplexing order determination unit (14).

公开(公告)号：US20080052084A1

公开(公告)日：2008-02-28

申请号：US11907926

申请日：2007-10-18

申请人： Hirohisa Tasaki

发明人： Hirohisa Tasaki

IPC分类号： G10L19/00

CPC分类号： H04B1/667 ,  G10L19/167

摘要： A sound encoder multiplexes a plurality of codes into a sound code in an order determined by a multiplexing order determination unit (12), and a sound decoder demultiplexes the sound code into a plurality of codes one by one in an order determined by a demultiplexing order determination unit (14).

公开(公告)号：US07191126B2

公开(公告)日：2007-03-13

申请号：US10222902

申请日：2002-08-19

申请人： Hirohisa Tasaki

发明人： Hirohisa Tasaki

IPC分类号： G10L19/14

CPC分类号： H04B1/667 ,  G10L19/167

摘要： A sound encoder and sound decoder that encode and decode, respectively, variable length codes on a frame by frame basis, the coding including main codes and auxiliary codes in which auxiliary codes are multiplexed or demultiplexed in a same fixed order to determine the order of multiplexing and demultiplexing the main codes which are used to determine where the codes are to be placed in the sound code.

摘要翻译： 一种声音编码器和声音解码器，分别以逐帧为基础对可变长度码进行编码和解码，该编码包括辅助码以相同的固定顺序复用或解复用的主码和辅码，以确定多路复用的顺序 并且解码用于确定将代码放置在声码中的主要代码。

公开(公告)号：US08706497B2

公开(公告)日：2014-04-22

申请号：US13503497

申请日：2010-10-22

申请人： Satoru Furuta ,  Hirohisa Tasaki

发明人： Satoru Furuta ,  Hirohisa Tasaki

IPC分类号： G10L13/00

CPC分类号： G10L21/038

摘要： A synthesis filter 106 synthesizes a plurality of wide-band speech signals by combining wide-band phoneme signals and sound source signals from a speech signal code book 105, and a distortion evaluation unit 107 selects one of the wide-band speech signals with a minimum waveform distortion with respect to an up-sampled narrow-band speech signal output from a sampling conversion unit 101. A first bandpass filter 103 extracts a frequency component outside a narrow-band of the wide-band speech signal and a band synthesis unit 104 combines it with the up-sampled narrow-band speech signal.

摘要翻译： 合成滤波器106通过组合来自语音信号码本105的宽带音素信号和声源信号来合成多个宽带语音信号，失真评估单元107选择最小的宽带语音信号之一 相对于从采样转换单元101输出的上采样窄带语音信号的波形失真。第一带通滤波器103提取宽带语音信号的窄带外的频率分量，频带合成单元104组合 它与上采样的窄带语音信号。

公开(公告)号：US20140086435A1

公开(公告)日：2014-03-27

申请号：US14122482

申请日：2011-09-15

申请人： Masaru Kimura ,  Hirohisa Tasaki

发明人： Masaru Kimura ,  Hirohisa Tasaki

IPC分类号： H03G3/20

CPC分类号： H03G3/20 ,  G10L21/02 ,  H03G5/005 ,  H03G5/165

摘要： Filters 106-1-106-N divide an input signal 100 into N band-limited signals 107-1-107-N, and multipliers 108-1-108-N carry out dynamic range control of the N band-limited signals 107-1-107-N, respectively. After that, filters 111-1-111-N eliminate odd harmonics caused by the dynamic range control, and a signal synthesis unit 113 combines the signals passing through the filters 111-1-111-N into a single output signal 114.

摘要翻译： 滤波器106-1-106-N将输入信号100划分为N个频带限制信号107-1-107-N，并且乘法器108-1-108-N对N个带限制信号107-1-107-N进行动态范围控制， 1-107-N。 之后，滤波器111-1-111-N消除由动态范围控制引起的奇次谐波，信号合成单元113将通过滤波器111-1-111-N的信号组合成单个输出信号114。

公开(公告)号：US20120209611A1

公开(公告)日：2012-08-16

申请号：US13503497

申请日：2010-10-22

申请人： Satoru Furuta ,  Hirohisa Tasaki

发明人： Satoru Furuta ,  Hirohisa Tasaki

IPC分类号： G10L13/00

CPC分类号： G10L21/038

摘要： A synthesis filter 106 synthesizes a plurality of wide-band speech signals by combining wide-band phoneme signals and sound source signals from a speech signal code book 105, and a distortion evaluation unit 107 selects one of the wide-band speech signals with a minimum waveform distortion with respect to an up-sampled narrow-band speech signal output from a sampling conversion unit 101. A first bandpass filter 103 extracts a frequency component outside a narrow-band of the wide-band speech signal and a band synthesis unit 104 combines it with the up-sampled narrow-band speech signal.

摘要翻译： 合成滤波器106通过组合来自语音信号码本105的宽带音素信号和声源信号来合成多个宽带语音信号，失真评估单元107选择最小的宽带语音信号之一 相对于从采样转换单元101输出的上采样窄带语音信号的波形失真。第一带通滤波器103提取宽带语音信号的窄带外的频率分量，频带合成单元104组合 它与上采样的窄带语音信号。

公开(公告)号：US20080071552A1

公开(公告)日：2008-03-20

申请号：US11907928

申请日：2007-10-18

申请人： Hirohisa Tasaki

发明人： Hirohisa Tasaki

IPC分类号： G10L19/00

CPC分类号： H04B1/667 ,  G10L19/167

摘要： A sound encoder multiplexes a plurality of codes into a sound code in an order determined by a multiplexing order determination unit (12), and a sound decoder demultiplexes the sound code into a plurality of codes one by one in an order determined by a demultiplexing order determination unit (14).

公开(公告)号：US20080071551A1

公开(公告)日：2008-03-20

申请号：US11907923

申请日：2007-10-18

申请人： Hirohisa Tasaki

发明人： Hirohisa Tasaki

IPC分类号： G10L19/00

CPC分类号： H04B1/667 ,  G10L19/167

摘要： A sound encoder multiplexes a plurality of codes into a sound code in an order determined by a multiplexing order determination unit (12), and a sound decoder demultiplexes the sound code into a plurality of codes one by one in an order determined by a demultiplexing order determination unit (14).

摘要翻译： 声音编码器以由多路复用顺序确定单元（12）确定的顺序将多个代码复用到声码中，并且声音解码器按照解复用顺序确定的顺序将声码逐个解复用为多个码 确定单元（14）。

公开(公告)号：US20070136049A1

公开(公告)日：2007-06-14

申请号：US11701461

申请日：2007-02-02

申请人： Hirohisa Tasaki

发明人： Hirohisa Tasaki

IPC分类号： G10L21/00 ,  G10L19/00

CPC分类号： H04B1/667 ,  G10L19/167

摘要： A sound encoder multiplexes a plurality of codes into a sound code in an order determined by a multiplexing order determination unit (12), and a sound decoder demultiplexes the sound code into a plurality of codes one by one in an order determined by a demultiplexing order determination unit (14).

摘要翻译： 声音编码器以由多路复用顺序确定单元（12）确定的顺序将多个代码复用到声码中，并且声音解码器按照解复用顺序确定的顺序将声码逐个解复用为多个码 确定单元（14）。