公开(公告)号：US20090192792A1

公开(公告)日：2009-07-30

申请号：US12361999

申请日：2009-01-29

Applicant: Geon-hyoung LEE ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE ,  Han-gil MOON

Inventor： Geon-hyoung LEE ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE ,  Han-gil MOON

IPC: G10L19/00

CPC classification number: G10L19/083

Abstract: Provided are methods and apparatuses for more efficiently encoding and decoding a high frequency band signal which is from an audio signal and which is greater than a predetermined threshold frequency. The method and apparatus for encoding the audio signal encodes a linear prediction coding (LPC) coefficient and gain information of a residual signal, which are generated by performing LPC analysis, thereby encoding a high frequency signal so as to have enhanced sound quality, while using less bits.

Abstract translation: 提供了用于更有效地编码和解码来自音频信号并且大于预定阈值频率的高频带信号的方法和装置。 用于对音频信号进行编码的方法和装置对通过执行LPC分析而产生的残差信号的线性预测编码（LPC）系数和增益信息进行编码，从而对高频信号进行编码以便具有增强的声音质量，同时使用 少位

公开(公告)号：US20090192789A1

公开(公告)日：2009-07-30

申请号：US12362060

申请日：2009-01-29

Applicant: Geon-hyoung LEE ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Nam-suk Lee ,  Han-gil Moon

Inventor： Geon-hyoung LEE ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Nam-suk Lee ,  Han-gil Moon

IPC: G10L11/04 ,  G10L19/04

CPC classification number: G10L19/0204 ,  G10L19/093

Abstract: Provided are a method and apparatus for effectively encoding/decoding remaining difference signals excluding sinusoidal components, from input audio signals. In the method and apparatus for encoding audio signals, sinusoidal analysis is performed on low frequency signals of less than a predetermined critical frequency in order to extract sinusoidal signals and then, an encoding operation is performed on the remaining difference signals excluding the sinusoidal signals, from input audio signals, by using linear prediction coding (LPC) analysis.

Abstract translation: 提供了一种用于从输入音频信号有效地编码/解码除了正弦分量的剩余差分信号的方法和装置。 在用于编码音频信号的方法和装置中，对小于预定临界频率的低频信号执行正弦分析，以便提取正弦信号，然后对不包括正弦信号的剩余差信号执行编码操作， 输入音频信号，通过使用线性预测编码（LPC）分析。

公开(公告)号：US20090055197A1

公开(公告)日：2009-02-26

申请号：US12132299

申请日：2008-06-03

Applicant: Nam-suk Lee ,  Geon-hyoung Lee ,  Jae-one Oh ,  Jong-hoon Jeong

Inventor： Nam-suk Lee ,  Geon-hyoung Lee ,  Jae-one Oh ,  Jong-hoon Jeong

IPC: G10L19/00

CPC classification number: G10L19/093

Abstract: Provided are a method and apparatus for encoding an audio signal and a method and apparatus for decoding an audio signal. The method includes performing sinusoidal analysis on an audio signal in order to extract a sinusoidal signal of a current frame, determining continuation sinusoidal signal information indicating a number of continuation sinusoidal signals of next frames, which continue from the sinusoidal signal of the current frame, by performing sinusoidal tracking on the extracted sinusoidal signal of the current frame, and encoding the determined continuation sinusoidal signal information by using different Huffman tables according to index information of the current frame, thereby allowing efficient encoding with a low bitrate.

Abstract translation: 提供了一种用于对音频信号进行编码的方法和装置以及用于对音频信号进行解码的方法和装置。 该方法包括对音频信号执行正弦分析以提取当前帧的正弦信号，确定指示从当前帧的正弦信号继续的下一帧的连续正弦信号的数量的连续正弦信号信息 对所提取的当前帧的正弦信号进行正弦跟踪，并且根据当前帧的索引信息通过使用不同的霍夫曼表来编码所确定的连续正弦信号信息，从而允许以低比特率进行有效编码。

公开(公告)号：US20080294445A1

公开(公告)日：2008-11-27

申请号：US12026066

申请日：2008-02-05

Applicant: Nam-suk LEE ,  Geon-hyoung LEE ,  Jae-one OH ,  Chul-woo LEE ,  Jong-hoon JEONG

Inventor： Nam-suk LEE ,  Geon-hyoung LEE ,  Jae-one OH ,  Chul-woo LEE ,  Jong-hoon JEONG

IPC: G10L19/00

CPC classification number: G10L19/093

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080235033A1

公开(公告)日：2008-09-25

申请号：US11962174

申请日：2007-12-21

Applicant: Nam-suk LEE ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Jong-hoon Jeong

Inventor： Nam-suk LEE ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Jong-hoon Jeong

IPC: G10L19/00

CPC classification number: G10L19/20 ,  G10L19/0204

Abstract: Methods and apparatuses for encoding and decoding of an audio signal using a mixture of a time-frequency method and a parametric method according to the audio band are provided. An encoding method of an audio signal includes: dividing input audio signals into a plurality of audio bands; selecting a coding method for each audio band; encoding each audio band according to the selected coding method for each band; and generating a bit stream including all the data encoded for each audio band, wherein selecting a coding method for each band comprises selecting smaller encoded data either from a parametric coding method or a time-frequency coding method.

Abstract translation: 提供了使用根据音频带的时频方法和参数方法的混合来对音频信号进行编码和解码的方法和装置。 音频信号的编码方法包括：将输入音频信号划分为多个音频频带; 选择每个音频带的编码方法; 根据所选择的每个频带的编码方法对每个音频频带进行编码; 并且生成包括针对每个音频频带编码的所有数据的比特流，其中为每个频带选择编码方法包括从参数编码方法或时间 - 频率编码方法中选择较小的编码数据。

公开(公告)号：US20080195398A1

公开(公告)日：2008-08-14

申请号：US12023410

申请日：2008-01-31

Applicant: Geon-hyoung LEE ,  Jae-one OH ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE

Inventor： Geon-hyoung LEE ,  Jae-one OH ,  Chul-woo LEE ,  Jong-hoon JEONG ,  Nam-suk LEE

IPC: G10L19/00

CPC classification number: G10L19/093

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080181432A1

公开(公告)日：2008-07-31

申请号：US12014220

申请日：2008-01-15

Applicant: Jong-hoon Jeong ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Nam-suk Lee

Inventor： Jong-hoon Jeong ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Nam-suk Lee

IPC: H04B15/00

CPC classification number: H04S1/002

Abstract: Provided is a method of processing an audio signal. An apparatus for encoding an audio signal including: a reverberation signal analyzer analyzing reverberation signals included in an input audio signal and generating a filter coefficient; a reverberation signal remover removing the reverberation signals from the input audio signal using the filter coefficient; an audio encoder encoding the audio signal from which the reverberation signals are removed; and a signal combiner generating a signal that combines the encoded audio signal and the filter coefficient.

Abstract translation: 提供了一种处理音频信号的方法。 一种用于对音频信号进行编码的装置，包括：混响信号分析器，分析包括在输入音频信号中的混响信号并产生滤波器系数; 混响信号去除器，使用滤波器系数从输入音频信号中去除混响信号; 编码去除了混响信号的音频信号的音频编码器; 以及信号组合器，其生成组合了编码音频信号和滤波器系数的信号。

公开(公告)号：US09426481B2

公开(公告)日：2016-08-23

申请号：US13594953

申请日：2012-08-27

Applicant: Seung-gu Kim ,  Geon-hyoung Lee ,  Se-hyeok Park ,  Tae-gyoung Ahn

Inventor： Seung-gu Kim ,  Geon-hyoung Lee ,  Se-hyeok Park ,  Tae-gyoung Ahn

IPC: H04N19/182 ,  H04N19/42 ,  H04N19/50 ,  H04N19/132 ,  H04N19/426 ,  H04N19/167 ,  H04N19/124 ,  H04N19/34

CPC classification number: H04N19/428 ,  H04N19/124 ,  H04N19/132 ,  H04N19/167 ,  H04N19/182 ,  H04N19/34 ,  H04N19/50

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08392177B2

公开(公告)日：2013-03-05

申请号：US12363937

申请日：2009-02-02

Applicant: Nam-suk Lee ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Han-gil Moon

Inventor： Nam-suk Lee ,  Geon-hyoung Lee ,  Chul-woo Lee ,  Jong-hoon Jeong ,  Han-gil Moon

IPC: G10L19/14

CPC classification number: G10L19/093

Abstract: Provided are a method and apparatus for encoding the frequency of a continuation sinusoidal signal and a method and apparatus for decoding the same. In the encoding method, a continuation sinusoidal signal successive to a sinusoidal signal in a previous section is extracted from a current section; a frequency of the continuation sinusoidal signal at the boundary between the current and previous sections is changed to a first frequency, based on representative frequencies of the continuation sinusoidal signal and at least one sinusoidal signal that belongs to a section adjacent to the current section and is successive to the continuation sinusoidal signal; and the first frequency is encoded.

Abstract translation: 提供一种用于对连续正弦信号的频率进行编码的方法和装置，以及用于对其进行解码的方法和装置。 在编码方法中，从当前部分提取与前一部分中的正弦信号连续的连续正弦信号; 基于连续正弦信号的代表频率和属于与当前部分相邻的部分的至少一个正弦信号，在当前部分和前一部分之间的边界处的连续正弦信号的频率被改变为第一频率，并且是 连续的正弦信号; 并且第一频率被编码。

公开(公告)号：US08019616B2

公开(公告)日：2011-09-13

申请号：US11962174

申请日：2007-12-21

Applicant: Nam-suk Lee ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Jong-hoon Jeong

Inventor： Nam-suk Lee ,  Geon-hyoung Lee ,  Jae-one Oh ,  Chul-woo Lee ,  Jong-hoon Jeong

IPC: G10L21/04

CPC classification number: G10L19/20 ,  G10L19/0204

Abstract: Methods and apparatuses for encoding and decoding of an audio signal using a mixture of a time-frequency method and a parametric method according to the audio band are provided. An encoding method of an audio signal includes: dividing input audio signals into a plurality of audio bands; selecting a coding method for each audio band; encoding each audio band according to the selected coding method for each band; and generating a bit stream including all the data encoded for each audio band, wherein selecting a coding method for each band comprises selecting smaller encoded data either from a parametric coding method or a time frequency coding method.

Abstract translation: 提供了使用根据音频带的时频方法和参数方法的混合来对音频信号进行编码和解码的方法和装置。 音频信号的编码方法包括：将输入音频信号划分为多个音频频带; 选择每个音频带的编码方法; 根据所选择的每个频带的编码方法对每个音频频带进行编码; 并且生成包括针对每个音频频带编码的所有数据的比特流，其中为每个频带选择编码方法包括从参数编码方法或时间频率编码方法中选择较小的编码数据。