专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

US20080162149A1 AUDIO ENCODING AND DECODING APPARATUS AND METHOD THEREOF 有权
标题翻译：音频编码和解码装置及其方法
公开(公告)号：US20080162149A1
公开(公告)日：2008-07-03
申请号：US11954286
申请日：2007-12-12
申请人： Geon-hyoung LEE , Jae-one OH , Chul-woo LEE , Jong-hoon JEONG , Nam-suk LEE
发明人： Geon-hyoung LEE , Jae-one OH , Chul-woo LEE , Jong-hoon JEONG , Nam-suk LEE
IPC分类号： G10L21/04
CPC分类号： G10L19/093 , G10L19/0212
摘要： Provided are audio encoding and decoding apparatuses capable of recovering a high-quality audio signal at a low bit rate. The audio encoding method includes: detecting at least one sinusoidal wave from an input audio signal; calculating components of additional basis vectors based on residual audio signals and the additional basis vectors of the sinusoidal wave; determining transmission of components of the additional basis vectors; and at least one of (a) encoding frequencies and (b) phases and amplitudes of the sinusoidal waves when the transmission of the components of the additional basis vectors are determined, wherein the residual audio signals are obtained by excluding the detected sinusoidal waves from the input audio signal.
摘要翻译：提供能够以低比特率恢复高质量音频信号的音频编码和解码装置。该音频编码方法包括：从输入音频信号中检测至少一个正弦波; 基于剩余音频信号和正弦波的附加基矢量来计算附加基矢量的分量; 确定附加基本向量的分量的传输; 并且当确定附加基矢量的分量的传输时，（a）编码频率和（b）正弦波的相位和振幅中的至少一个，其中残留音频信号是通过将检测到的正弦波从输入音频信号。

12. 发明申请

US20080294445A1 METHOD AND APAPRATUS FOR SINUSOIDAL AUDIO CODING 有权
标题翻译： SINUSOIDAL音频编码的方法和APAPRATUS
公开(公告)号：US20080294445A1
公开(公告)日：2008-11-27
申请号：US12026066
申请日：2008-02-05
申请人： Nam-suk LEE , Geon-hyoung LEE , Jae-one OH , Chul-woo LEE , Jong-hoon JEONG
发明人： Nam-suk LEE , Geon-hyoung LEE , Jae-one OH , Chul-woo LEE , Jong-hoon JEONG
IPC分类号： G10L19/00
CPC分类号： G10L19/093
摘要： Provided are a method and apparatus for sinusoidal audio coding, which employs a tracking method for further effective coding of sinusoids extracted in the process of a sinusoidal analysis of parametric coding. The sinusoidal audio coding method includes: extracting sinusoids of a current frame by performing a sinusoidal analysis on an input audio signal; with respect to each of the extracted sinusoids, setting a mode selected from a birth mode in which a sinusoid is newly generated irrespective of sinusoids of a previous frame, a continuation mode in which the sinusoid is only one sinusoid continued from one of the sinusoids of the previous frame, and a branch mode in which the sinusoid is one of a plurality of sinusoids continued from one of the sinusoids of the previous frame; and coding the extracted sinusoids according to the selected mode. Accordingly, a plurality of sinusoids that can be continued from one previous track component are set to the continuation mode or the branch mode. Therefore, the number of bits of coded data is significantly reduced, compared with the case of the birth mode.
摘要翻译：提供了一种用于正弦音频编码的方法和装置，其采用跟踪方法用于在参数编码的正弦分析的过程中提取的正弦曲线的进一步有效编码。正弦音频编码方法包括：通过对输入音频信号执行正弦分析来提取当前帧的正弦曲线; 对于每个提取的正弦曲线，设定选自新生成正弦曲线的诞生模式的模式，而不管前一帧的正弦曲线，其中正弦曲线仅仅是一个正弦曲线的连续模式，其中一个正弦曲线从前一帧，以及分支模式，其中正弦曲线是从前一帧的正弦曲线之一连续的多个正弦曲线之一; 并根据所选择的模式对所提取的正弦曲线进行编码。因此，可以从一个先前的轨道分量继续的多个正弦曲线被设置为连续模式或分支模式。因此，与出生模式的情况相比，编码数据的位数显着减少。

13. 发明申请

US20080195398A1 AUDIO ENCODING AND DECODING APPARATUS AND METHOD 失效
标题翻译：音频编码和解码设备和方法
公开(公告)号：US20080195398A1
公开(公告)日：2008-08-14
申请号：US12023410
申请日：2008-01-31
申请人： Geon-hyoung LEE , Jae-one OH , Chul-woo LEE , Jong-hoon JEONG , Nam-suk LEE
发明人： Geon-hyoung LEE , Jae-one OH , Chul-woo LEE , Jong-hoon JEONG , Nam-suk LEE
IPC分类号： G10L19/00
CPC分类号： G10L19/093
摘要： Provided is an audio encoding and decoding apparatus and method for improving a compression ratio while maintaining sound quality when sinusoidal waves of an audio signal are connected and encoded. The audio encoding method includes connecting sinusoidal waves of an input audio signal, converting a frequency of each of the connected sinusoidal waves to a psychoacoustic frequency, performing a first encoding operation for encoding the psychoacoustic frequency, performing a second encoding operation for encoding an amplitude of each of the connected sinusoidal waves, and outputting an encoded audio signal by mixing the encoding result of the first encoding operation and the encoding result of the second encoding operation.
摘要翻译：提供了一种用于在音频信号的正弦波被连接和编码的同时保持声音质量的同时改善压缩比的音频编码和解码装置和方法。音频编码方法包括连接输入音频信号的正弦波，将连接的正弦波中的每一个的频率转换为心理声学频率，执行用于对心理声学频率进行编码的第一编码操作，执行第二编码操作，每个连接的正弦波，并且通过混合第一编码操作的编码结果和第二编码操作的编码结果来输出编码的音频信号。

14. 发明申请

US20080235034A1 METHOD AND APPARATUS FOR ENCODING AUDIO SIGNAL AND METHOD AND APPARATUS FOR DECODING AUDIO SIGNAL 失效
标题翻译：用于编码音频信号的方法和装置以及用于解码音频信号的方法和装置
公开(公告)号：US20080235034A1
公开(公告)日：2008-09-25
申请号：US12022581
申请日：2008-01-30
申请人： Nam-suk LEE , Geon-hyoung LEE , Jae-one OH , Chul-woo LEE , Jong-hoon JEONG
发明人： Nam-suk LEE , Geon-hyoung LEE , Jae-one OH , Chul-woo LEE , Jong-hoon JEONG
IPC分类号： G10L19/00
CPC分类号： G10L19/093
摘要： Provided are a method and apparatus for encoding an audio signal to efficiently encode a harmonic envelope and a method and apparatus for decoding an audio signal to decode the harmonic envelope. The method of encoding an audio signal includes performing harmonic analysis with respect to an input signal to determine harmonic parameters with respect to harmonic signals; regarding amplitudes of the harmonic signals included in the harmonic parameters as signals in the time domain so as to perform time-frequency transformation; and encoding the time-frequency transformed values. When expressing a harmonic envelope, the amplitudes of the harmonic signals are regarded as signals in the time domain so as to perform a time-frequency transformation and only a part from among the transformed values is selected to be encoded. Therefore, sound quality is not affected and coding efficiency greatly improves.
摘要翻译：提供了一种用于对音频信号进行编码以有效地编码谐波包络的方法和装置，以及用于对音频信号进行解码以解码谐波包络的方法和装置。对音频信号进行编码的方法包括对输入信号执行谐波分析以确定相对于谐波信号的谐波参数; 将包括在谐波参数中的谐波信号的幅度作为时域中的信号进行时频转换; 并对时间 - 频率变换的值进行编码。当表示谐波包络时，谐波信号的幅度被认为是时域中的信号，以便执行时间 - 频率变换，并且仅选择变换值中的一部分进行编码。因此，音质不受影响，编码效率大大提高。

15. 发明申请

US20080189120A1 METHOD AND APPARATUS FOR PARAMETRIC ENCODING AND PARAMETRIC DECODING 审中-公开
标题翻译：参数编码和参数解码的方法和装置
公开(公告)号：US20080189120A1
公开(公告)日：2008-08-07
申请号：US12021760
申请日：2008-01-29
申请人： Jae-one OH , Geon-hyoung LEE , Chul-woo LEE , Jong-hoon JEONG , Nam-suk LEE
发明人： Jae-one OH , Geon-hyoung LEE , Chul-woo LEE , Jong-hoon JEONG , Nam-suk LEE
IPC分类号： G10L19/00
CPC分类号： G10L19/025
摘要： A method of and apparatus for parametric encoding and parametric decoding are provided. According to the method and apparatus, not all parameters for all component signals are generated and according to a time interval, parameters for some component signals are replaced by index information allowing similar previous time intervals to be found, thereby increasing encoding efficiency.
摘要翻译：提供了一种用于参数编码和参数解码的方法和装置。根据该方法和装置，不是产生所有分量信号的所有参数，并且根据时间间隔，一些分量信号的参数由索引信息代替，允许找到相似的先前时间间隔，从而提高编码效率。

16. 发明申请

US20090063163A1 METHOD AND APPARATUS FOR ENCODING/DECODING MEDIA SIGNAL 审中-公开
标题翻译：编码/解码媒体信号的方法和装置
公开(公告)号：US20090063163A1
公开(公告)日：2009-03-05
申请号：US12186128
申请日：2008-08-05
申请人： Jong-hoon JEONG , Geon-hyoung LEE , Nam-suk LEE , Jae-one OH
发明人： Jong-hoon JEONG , Geon-hyoung LEE , Nam-suk LEE , Jae-one OH
IPC分类号： G10L19/00
CPC分类号： G10L19/093 , G10L19/09
摘要： Provided are a method and apparatus for encoding/decoding a media signal. The method of encoding a media signal includes: when harmonics exist in a sinusoid of a previous frame section, predicting a harmonic frequency of a current frame section that is to be encoded by using a harmonic frequency of the previous frame section, and generating a residual signal by using a difference between the predicted frequency and an actual harmonic frequency of the current frame section.
摘要翻译：提供了一种用于对媒体信号进行编码/解码的方法和装置。编码媒体信号的方法包括：当在前一帧部分的正弦波中存在谐波时，通过使用前一帧部分的谐波频率来预测要编码的当前帧部分的谐波频率，并产生残差通过使用预测频率与当前帧部分的实际谐波频率之间的差来产生信号。

17. 发明申请

US20090063162A1 PARAMETRIC AUDIO ENCODING AND DECODING APPARATUS AND METHOD THEREOF 有权
标题翻译：参数音频编码和解码设备及其方法
公开(公告)号：US20090063162A1
公开(公告)日：2009-03-05
申请号：US12170819
申请日：2008-07-10
申请人： Geon-hyoung LEE , Jong-hoon JEONG , Nam-suk LEE
发明人： Geon-hyoung LEE , Jong-hoon JEONG , Nam-suk LEE
IPC分类号： G10L19/00
CPC分类号： G10L19/093
摘要： Provided are parametric audio encoding and decoding apparatuses and methods thereof. In the parametric audio encoding method, an audio signal is segmented into a plurality of segments. At least one sine wave is extracted from each of the segments, and the extracted sine waves are connected. It is determined whether an extracted sine wave is a birth sine wave. If the extracted sine wave is a birth sine wave, a bit stream is generated by encoding the phase of the birth sine wave on the basis of the frequency of the birth sine wave, wherein the number of bits allocated to encode the phase of the birth sine wave is adjusted according to the frequency of the birth sine wave.
摘要翻译：提供了参数音频编码和解码装置及其方法。在参数音频编码方法中，音频信号被分割成多个片段。从每个段提取至少一个正弦波，并且提取的正弦波被连接。确定提取的正弦波是否是出生正弦波。如果提取的正弦波是出生正弦波，则通过根据出生正弦波的频率编码出生正弦波的相位来产生比特流，其中分配用于编码出生阶段的比特数正弦波根据出生正弦波的频率进行调整。

18. 发明申请

US20090089049A1 METHOD AND APPARATUS FOR ADAPTIVELY DETERMINING QUANTIZATION STEP ACCORDING TO MASKING EFFECT IN PSYCHOACOUSTICS MODEL AND ENCODING/DECODING AUDIO SIGNAL BY USING DETERMINED QUANTIZATION STEP 审中-公开
标题翻译：方法和装置，用于通过使用确定的量化步骤，根据PSYCHOACOUSTICS模型中的掩蔽效应和编码/解码音频信号自适应地确定量化步长
公开(公告)号：US20090089049A1
公开(公告)日：2009-04-02
申请号：US12237413
申请日：2008-09-25
申请人： Han-gil MOON , Geon-hyoung LEE
发明人： Han-gil MOON , Geon-hyoung LEE
IPC分类号： G10L19/00
CPC分类号： G10L19/035
摘要： Provided are a method of adaptively determining a quantization step according to a masking effect in a psychoacoustics model and a method of encoding/decoding an audio signal by using the determined quantization step. The method of adaptively determining a quantization step includes calculating a first ratio value indicating an intensity of an input audio signal with respect to a masking threshold; and determining the maximum value of the quantization step in a range in which noise generated when the audio signal is quantized is masked, according to the first ratio value. According to the present invention, quantization noise may be removed and the number of bits required to encode an audio signal may be reduced, by using auditory characteristics of humans.
摘要翻译：提供了一种根据心理声学模型中的掩蔽效应自适应地确定量化步长的方法，以及通过使用所确定的量化步长对音频信号进行编码/解码的方法。自适应地确定量化步骤的方法包括：计算指示输入音频信号相对于屏蔽阈值的强度的第一比值; 以及根据所述第一比值确定在音频信号被量化时产生的噪声被屏蔽的范围内的所述量化步长的最大值。根据本发明，可以通过使用人的听觉特征来消除量化噪声并且可以减少编码音频信号所需的比特数。

19. 发明申请

US20090048849A1 AUDIO ENCODING METHOD AND APPARATUS, AND AUDIO DECODING METHOD AND APPARATUS, FOR PROCESSING DEATH SINUSOID AND GENERAL CONTINUATION SINUSOID 有权
标题翻译：音频编码方法和装置，以及音频解码方法和装置，用于处理死亡SINUSOID和一般连续性SINUSOID
公开(公告)号：US20090048849A1
公开(公告)日：2009-02-19
申请号：US12174875
申请日：2008-07-17
申请人： Nam-suk LEE , Geon-hyoung LEE
发明人： Nam-suk LEE , Geon-hyoung LEE
IPC分类号： G10L19/00
CPC分类号： G10L19/093
摘要： An audio encoding method and apparatus, and an audio decoding method and apparatus, for processing a death sinusoid and a general continuation sinusoid. Using the unique characteristic of a death sinusoid, in that the death sinusoid has a tendency such that an amplitude component of the death sinusoid is less than that of a previous sinusoid, a method of adding an encoding syntax by distinguishing a general continuation sinusoid from a death sinusoid is provided. That is, when difference coding of the amplitude component of a death sinusoid is performed, the number of bits used when a negative number is coded is less than the number of bits used when a positive number is coded, in a Huffman table. By using this method, a bit rate in an entire coding decreases.
摘要翻译：一种用于处理死亡正弦曲线和一般持续正弦曲线的音频编码方法和装置以及音频解码方法和装置。使用死亡正弦曲线的独特特征，因为死亡正弦曲线具有使得死亡正弦曲线的幅度分量小于先前正弦曲线的幅度分量的趋势，一种通过将一般的连续正弦曲线与提供死亡正弦曲线。也就是说，当执行死亡正弦曲线的振幅分量的差分编码时，当编码负数时使用的位数小于霍夫曼表中正数编码时所使用的位数。通过使用该方法，整个编码中的比特率降低。

20. 发明申请

US20130051474A1 METHOD AND APPARATUS FOR ENCODING IMAGE, AND METHOD AND APPARATUS FOR DECODING IMAGE 有权
标题翻译：用于编码图像的方法和装置，以及用于解码图像的方法和装置
公开(公告)号：US20130051474A1
公开(公告)日：2013-02-28
申请号：US13594953
申请日：2012-08-27
申请人： Seung-gu KIM , Geon-hyoung LEE , Se-hyeok PARK , Tae-gyoung AHN
发明人： Seung-gu KIM , Geon-hyoung LEE , Se-hyeok PARK , Tae-gyoung AHN
IPC分类号： H04N7/32
CPC分类号： H04N19/428 , H04N19/124 , H04N19/132 , H04N19/167 , H04N19/182 , H04N19/34 , H04N19/50
摘要： A method and apparatus for encoding an image, and a method and apparatus for decoding an image. The method of encoding an image includes: classifying pixels forming an input image into a first pixel group in which bit depth of original pixel values is maintained, and a second pixel group in which bit depth of original pixel values is changed; generating a changed input image by changing the bit depth of pixel values of pixels in the second pixel group; and performing motion prediction and compensation on the changed input image.
摘要翻译：用于编码图像的方法和装置，以及用于对图像进行解码的方法和装置。编码图像的方法包括：将形成输入图像的像素分类为保持原始像素值的位深度的第一像素组，以及改变原始像素值的位深度的第二像素组; 通过改变第二像素组中像素的像素值的位深度来生成改变的输入图像; 并对改变的输入图像执行运动预测和补偿。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式