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1.发明授权公开(公告)号：US09384749B2
公开(公告)日：2016-07-05
申请号：US14238041
申请日：2012-08-24
IPC分类号： G10L21/0388 , G10L19/26 , G10L19/02
CPC分类号： G10L19/265 , G10L19/0204 , G10L21/0388
摘要： By copying to a high-frequency band portion (extension band) a low-frequency band portion in which peaking has been set to a sufficiently low state, this encoding device is capable of preventing generation of a spectrum with overly high peaking in the high-frequency band portion, and of generating a high-quality extension band spectrum. This device comprises: a maximum value search unit which searches, in each of multiple sub-bands obtained by dividing the low-frequency band portion of an audio signal and/or music signal below a prescribed frequency, for the maximum value of the amplitude of a first spectrum obtained by decoding first encoded data, which is encoded data in the low-frequency band portion; and an amplitude normalization unit which obtains a normalized spectrum by normalizing, at the maximum values of the amplitude of each sub-band, the first spectrum contained in each sub-band.
摘要翻译： 通过将峰值设定为足够低的低频区域的高频带部分（扩展频带）复制，能够防止在高频带部分 频带部分，并且产生高质量的扩展频带。 该装置包括：最大值搜索单元，其在通过将音频信号的低频带部分和/或音频信号低于规定频率的下划线获得的多个子带中搜索最大值的幅度的最大值 通过对作为低频带部分中的编码数据的第一编码数据进行解码而获得的第一频谱; 以及振幅归一化单元，其通过在每个子带的振幅的最大值处归一化包含在每个子带中的第一频谱来获得归一化频谱。
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2.发明授权Speech/audio encoding apparatus, speech/audio decoding apparatus, and methods thereof 有权语音/音频编码装置，语音/音频解码装置及其方法公开(公告)号：US09536534B2
公开(公告)日：2017-01-03
申请号：US14001977
申请日：2012-03-19
CPC分类号： G10L19/002 , G10L19/0208 , G10L19/035 , G10L19/06 , G10L19/12
摘要： Provided is a speech/audio encoding apparatus with which it is possible to code a significant frequency domain region with high precision, and to enable high audio quality. A speech/audio encoding apparatus codes a linear prediction coefficient. A significant frequency domain region detection unit identifies a frequency domain region which is aurally significant from the linear prediction coefficient. A frequency domain region repositioning unit repositions the significant frequency domain region which is identified by the significant frequency domain region detection unit. A bit allocation computation unit determines a coding bit allocation on the basis of the significant frequency domain region which is repositioned by the frequency domain region repositioning unit.
摘要翻译： 提供了一种语音/音频编码装置，其可以以高精度对重要的频域区域进行编码，并且能够实现高音频质量。 语音/音频编码装置对线性预测系数进行编码。 显着的频域区域检测单元从线性预测系数识别听觉显着的频域区域。 频域区域重新定位单元重新定位由有效频域区域检测单元识别的显着频域区域。 比特分配计算单元基于由频域区域重定位单元重定位的有效频域区域来确定编码比特分配。
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3.发明授权Encoder apparatus and method that perform preliminary signal selection for transform coding before main signal selection for transform coding 有权在用于变换编码的主信号选择之前执行用于变换编码的初步信号选择的编码器装置和方法公开(公告)号：US09361892B2
公开(公告)日：2016-06-07
申请号：US13820760
申请日：2011-09-05
CPC分类号： G10L19/00 , G10L19/0212 , G10L19/12 , G10L19/20 , G10L19/24
摘要： An encoder apparatus is provided that suppresses the quality degradation of encoding processes. An ultimate selection candidate limiting unit uses the spectrum of an input signal and a residual spectrum to designate a given number of pre-selected suppression factors to a CELP component suppressing unit, which uses the designated suppression factors to generate a suppressed spectrum. A CELP residual signal spectrum calculating unit, to which the suppressed spectrum is input, calculates a residual spectrum. A conversion encoding unit uses the residual spectrum to perform a second encoding process. A distortion evaluating unit determines one of the designated suppression factors by use of the spectrum of a second decoded signal generated by decoding a second code obtained by the second encoding process, and further by use of the suppressed spectrum and the spectrum of the input signal.
摘要翻译： 提供了一种编码器装置，其抑制编码处理的质量劣化。 最终选择候选限制单元使用输入信号和残余频谱的频谱来将给定数量的预选抑制因子指定给CELP分量抑制单元，其使用指定的抑制因子来产生抑制频谱。 抑制频谱被输入的CELP残差信号频谱计算单元计算剩余频谱。 转换编码单元使用剩余频谱来执行第二编码处理。 失真评估单元通过使用通过对通过第二编码处理获得的第二代码进行解码而生成的第二解码信号的频谱，并且进一步通过使用抑制的频谱和输入信号的频谱来确定指定的抑制因子之一。
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公开(公告)号：US09082412B2
公开(公告)日：2015-07-14
申请号：US13702382
申请日：2011-05-27
CPC分类号： G10L21/034 , G10L19/0204 , G10L19/0212 , G10L19/12 , G10L19/22 , G10L19/24
摘要： Disclosed is a decoder capable of improving the sound quality of a decoded sound signal in an encoding method which combines speech encoding and music encoding in a hierarchical structure. A transform-encoding decoding unit (202) decodes transform-encoded data to generate a spectrum of a decoded transform-encoded signal. A band decision unit (203) uses the spectrum of the decoded transform-encoded signal to decide whether each of a plurality of bands in which frequency components of an input signal are divided constitute a first band in which a transform encoded pulse is not established or a second band in which said pulse is established. A CELP component suppression unit (207) suppresses the spectrum of a CELP decoded signal, which is the frequency component of a decoded signal of CELP encoded data, to the extent that suppression in the first band is weaker than suppression in the second band.
摘要翻译： 公开了一种解码器，其能够以分层结构组合语音编码和音乐编码的编码方法来提高解码声音信号的声音质量。 变换编码解码单元（202）对变换编码数据进行解码，生成解码变换编码信号的频谱。 频带判定单元（203）使用解码后的变换编码信号的频谱来判定输入信号的频率成分被划分的多个频带中的每一个是否构成未建立变换编码脉冲的第一频带， 其中建立所述脉冲的第二频带。 CELP分量抑制单元（207）抑制作为CELP编码数据的解码信号的频率分量的CELP解码信号的频谱，使得第一频带的抑制弱于第二频带中的抑制。
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公开(公告)号：US20130166308A1
公开(公告)日：2013-06-27
申请号：US13820760
申请日：2011-09-05
IPC分类号： G10L19/00
CPC分类号： G10L19/00 , G10L19/0212 , G10L19/12 , G10L19/20 , G10L19/24
摘要： Provided is an encoder apparatus that can suppress the quality degradation of encoding processes. An ultimate selection candidate limiting unit (109) uses the spectrum of an input signal and a residual spectrum to designate a given number of pre-selected suppression factors to a CELP component suppressing unit (104); the CELP component suppressing unit (104) uses the designated suppression factors to generate a suppressed spectrum; a CELP residual signal spectrum calculating unit (105), to which the suppressed spectrum is input, calculates a residual spectrum; a conversion encoding unit (110) uses the residual spectrum to performs a second encoding process; and a distortion evaluating unit (112) determines one of the designated suppression factors by use of the spectrum of a second decoded signal generated by decoding a second code obtained by the second encoding process and further by use of the suppressed spectrum and the spectrum of the input signal.
摘要翻译： 提供了可以抑制编码处理的质量劣化的编码器装置。 最终选择候选限制单元（109）使用输入信号和残余频谱的频谱来将给定数量的预先选择的抑制因子指定给CELP分量抑制单元（104）; CELP分量抑制单元（104）使用指定的抑制因子来产生抑制的频谱; 输入抑制频谱的CELP残差信号频谱计算单元（105）计算剩余频谱; 转换编码单元（110）使用剩余频谱来执行第二编码处理; 并且失真评估单元（112）通过使用通过对通过第二编码处理获得的第二代码进行解码而产生的第二解码信号的频谱来确定所指定的抑制因子中的一个，并且还通过使用抑制的频谱和 输入信号。
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6.发明申请SPEECH/AUDIO ENCODING APPARATUS, SPEECH/AUDIO DECODING APPARATUS, AND METHODS THEREOF 有权语音/音频编码设备，语音/音频解码设备及其方法公开(公告)号：US20130339012A1
公开(公告)日：2013-12-19
申请号：US14001977
申请日：2012-03-19
IPC分类号： G10L19/12
CPC分类号： G10L19/002 , G10L19/0208 , G10L19/035 , G10L19/06 , G10L19/12
摘要： Provided is a speech/audio encoding apparatus with which it is possible to code a significant frequency domain region with high precision, and to enable high audio quality. A speech/audio encoding apparatus codes a linear prediction coefficient. A significant frequency domain region detection unit identifies a frequency domain region which is aurally significant from the linear prediction coefficient. A frequency domain region repositioning unit repositions the significant frequency domain region which is identified by the significant frequency domain region detection unit. A bit allocation computation unit determines a coding bit allocation on the basis of the significant frequency domain region which is repositioned by the frequency domain region repositioning unit.
摘要翻译： 提供了一种语音/音频编码装置，其可以以高精度对重要的频域区域进行编码，并且能够实现高音频质量。 语音/音频编码装置对线性预测系数进行编码。 显着的频域区域检测单元从线性预测系数识别听觉显着的频域区域。 频域区域重新定位单元重新定位由有效频域区域检测单元识别的显着频域区域。 比特分配计算单元基于由频域区域重定位单元重定位的有效频域区域来确定编码比特分配。
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7.发明申请公开(公告)号：US20140200901A1
公开(公告)日：2014-07-17
申请号：US14238041
申请日：2012-08-24
IPC分类号： G10L19/26
CPC分类号： G10L19/265 , G10L19/0204 , G10L21/0388
摘要： By copying to a high-frequency band portion (extension band) a low-frequency band portion in which peaking has been set to a sufficiently low state, this encoding device is capable of preventing generation of a spectrum with overly high peaking in the high-frequency band portion, and of generating a high-quality extension band spectrum. This device comprises: a maximum value search unit which searches, in each of multiple sub-bands obtained by dividing the low-frequency band portion of an audio signal and/or music signal below a prescribed frequency, for the maximum value of the amplitude of a first spectrum obtained by decoding first encoded data, which is encoded data in the low-frequency band portion; and an amplitude normalization unit which obtains a normalized spectrum by normalizing, at the maximum values of the amplitude of each sub-band, the first spectrum contained in each sub-band.
摘要翻译： 通过将峰值设定为足够低的低频区域的低频带部分（扩展频带）复制到该高频带部分（扩展频带），该编码装置能够防止高频带部分 频带部分，并且产生高质量的扩展频带。 该装置包括：最大值搜索单元，其在通过将音频信号的低频带部分和/或音频信号低于规定频率的下划线获得的多个子带中搜索最大值的幅度的最大值 通过对作为低频带部分中的编码数据的第一编码数据进行解码而获得的第一频谱; 以及振幅归一化单元，其通过在每个子带的振幅的最大值处归一化包含在每个子带中的第一频谱来获得归一化频谱。
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公开(公告)号：US20130085752A1
公开(公告)日：2013-04-04
申请号：US13702382
申请日：2011-05-27
IPC分类号： G10L21/034
CPC分类号： G10L21/034 , G10L19/0204 , G10L19/0212 , G10L19/12 , G10L19/22 , G10L19/24
摘要： Disclosed is a decoder capable of improving the sound quality of a decoded sound signal in an encoding method which combines speech encoding and music encoding in a hierarchical structure. A transform-encoding decoding unit (202) decodes transform-encoded data to generate a spectrum of a decoded transform-encoded signal. A band decision unit (203) uses the spectrum of the decoded transform-encoded signal to decide whether each of a plurality of bands in which frequency components of an input signal are divided constitute a first band in which a transform encoded pulse is not established or a second band in which said pulse is established. A CELP component suppression unit (207) suppresses the spectrum of a CELP decoded signal, which is the frequency component of a decoded signal of CELP encoded data, to the extent that suppression in the first band is weaker than suppression in the second band.
摘要翻译： 公开了一种解码器，其能够以分层结构组合语音编码和音乐编码的编码方法来提高解码声音信号的声音质量。 变换编码解码单元（202）对变换编码数据进行解码，生成解码变换编码信号的频谱。 频带判定单元（203）使用解码后的变换编码信号的频谱来判定输入信号的频率成分被划分的多个频带中的每一个是否构成未建立变换编码脉冲的第一频带， 其中建立所述脉冲的第二频带。 CELP分量抑制单元（207）抑制作为CELP编码数据的解码信号的频率分量的CELP解码信号的频谱，使得第一频带的抑制弱于第二频带中的抑制。
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公开(公告)号：US07683379B2
公开(公告)日：2010-03-23
申请号：US11572547
申请日：2005-07-27
申请人： Kenji Goto , Takuya Kawashima , Nobuo Tanabe , Tatsuya Ito
发明人： Kenji Goto , Takuya Kawashima , Nobuo Tanabe , Tatsuya Ito
IPC分类号： H01L27/15
CPC分类号： H01L33/42
摘要： A light emitting device having little variation in the intensity of light emitted from the light emitting surface is provided. The light emitting device of exemplary embodiments of the present invention includes a laminated body with a first conductivity type layer and a second conductivity type layer, with a light emitting portion therebetween. The light emitting device also includes a metal thin film layer on the second conductivity type layer of the laminated body, and a transparent conductor on the metal thin film layer. The transparent conductor includes a single layer of transparent conductive film. The grain size in the light emitting surface of the transparent conductive film is not less than 30 nm and not greater than 300 nm.
摘要翻译： 提供了从发光面发射的光的强度变化小的发光装置。 本发明的示例性实施例的发光器件包括具有第一导电类型层和第二导电类型层的层叠体，其间具有发光部分。 发光装置还包括在层叠体的第二导电类型层上的金属薄膜层和在金属薄膜层上的透明导体。 透明导体包括单层透明导电膜。 透明导电膜的发光面的晶粒尺寸不小于30nm且不大于300nm。
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公开(公告)号：US20100036656A1
公开(公告)日：2010-02-11
申请号：US11722904
申请日：2006-01-12
申请人： Takuya Kawashima , Hiroyuki Ehara
发明人： Takuya Kawashima , Hiroyuki Ehara
IPC分类号： G10L21/00
CPC分类号： G10L19/24 , G10L21/0364
摘要： There is disclosed a speech switching device capable of improving quality of a decoded signal. In the device, a weighted addition unit (114) outputs a mixed signal of a narrow-band speech signal and a wide-band speech signal when switching the speech signal band. A mixing unit formed by an extended layer decoded speech amplifier (122) and an adder (124) mixes the narrow-band speech signal with the wide-band speech signal while changing the mixing ratio of the narrow-band speech signal and the wide-band speech signal as the time elapses, thereby obtaining a mixed signal. An extended layer decoded speech gain controller (120) variably sets the degree of change of the mixing ratio by the time.
摘要翻译： 公开了能够提高解码信号质量的语音切换装置。 在该装置中，当切换语音信号频带时，加权加法单元（114）输出窄带语音信号和宽带语音信号的混合信号。 由扩展层解码语音放大器（122）和加法器（124）形成的混合单元将窄带语音信号与宽带语音信号混合，同时改变窄带语音信号和宽带语音信号的混合比， 随着时间的流逝，获得混合信号。 扩展层解码语音增益控制器（120）将混合比的变化程度可变地设定为时间。
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