公开(公告)号：US20120035938A1

公开(公告)日：2012-02-09

申请号：US13198914

申请日：2011-08-05

Applicant: Jong-hoon JEONG ,  Chul-woo LEE ,  Nam-suk LEE ,  Sang-hoon LEE

Inventor： Jong-hoon JEONG ,  Chul-woo LEE ,  Nam-suk LEE ,  Sang-hoon LEE

IPC: G10L19/00

CPC classification number: G10L25/78 ,  G10L19/008 ,  G10L19/24

Abstract: An audio reproducing method for quickly and correctly extracting extra data, including: receiving a data stream including the extra data including an end marker disposed immediately before main data and data length information, which is length information of the extra data, disposed immediately before the end marker; checking the presence/absence of the end marker; and if the end marker exists, extracting the extra data by using the data length information.

Abstract translation: 一种用于快速且正确地提取额外数据的音频再现方法，包括：接收包括紧邻主数据之前设置的结束标记的附加数据的数据流和作为紧邻结束之前设置的额外数据的长度信息的数据长度信息 标记 检查结束标记的存在/不存在; 并且如果存在结束标记，则通过使用数据长度信息来提取额外的数据。

公开(公告)号：US20090228284A1

公开(公告)日：2009-09-10

申请号：US12397505

申请日：2009-03-04

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

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

IPC: G10L19/00

CPC classification number: G10L19/035

Abstract: A method and apparatus for encoding a multi-channel audio signal is provided. The method includes the operations of selecting a first variable length code table (VLC) that is to be used to encode the multi-channel audio signal in a given frequency band, from among a plurality of VLC tables, and encoding the multi-channel audio signal by using the first VLC table. Thus, the multi-channel audio signal can be encoded by using VLC tables that differ according to frequency bands.

Abstract translation: 提供了一种用于对多声道音频信号进行编码的方法和装置。 该方法包括从多个VLC表中选择要用于对给定频带中的多声道音频信号进行编码的第一可变长度码表（VLC）和对多声道音频进行编码的操作 信号通过使用第一个VLC表。 因此，可以通过使用根据频带而不同的VLC表来编码多声道音频信号。

公开(公告)号：US20090198489A1

公开(公告)日：2009-08-06

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: G10L19/00

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：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：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：US20090210236A1

公开(公告)日：2009-08-20

申请号：US12389639

申请日：2009-02-20

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

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

IPC: G10L19/00

CPC classification number: G10L19/008

Abstract: Provided are a method and apparatus for encoding/decoding stereo audio. In the method for encoding stereo audio, stereo audio is encoded based on at least one of the phase difference between first and second channel audios and information on an angle made by a vector on the intensity of mono-audio and a vector on the intensity of the first channel audio or a vector on the intensity of the second channel audio. Thus, the number of encoded parameters is minimized so that a compression ratio in the encoding of the stereo audio is improved.

Abstract translation: 提供了一种用于对立体声音频进行编码/解码的方法和装置。 在对立体声音频进行编码的方法中，基于第一和第二声道音频之间的相位差中的至少一个以及由矢量对单声道的强度和向量的角度的信息对立体声音频进行编码， 第一声​​道音频或第二声道音频强度的向量。 因此，编码参数的数量被最小化，从而提高了立体声音频的编码中的压缩率。

公开(公告)号：US20090198499A1

公开(公告)日：2009-08-06

申请号：US12174936

申请日：2008-07-17

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

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

IPC: G10L19/00

CPC classification number: G10L19/08 ,  G10L19/025

Abstract: Encoding and decoding of residual signals are provided. In a method of encoding a residual signal of an audio signal, the residual signal is divided into a plurality of sections having different sizes, based on a change of the residual signal. Then, section division information representing information about the divided sections and section-by-section residual signal information representing characteristics of the sections of the residual signal are acquired. Thereafter, the residual signal is encoded based on the section division information and the section-by-section residual signal information.

Abstract translation: 提供残留信号的编码和解码。 在对音频信号的残差信号进行编码的方法中，残差信号根据残差信号的变化被划分为具有不同大小的多个部分。 然后，获取表示关于分割部分的信息的部分分割信息和表示残留信号的各部分的特征的逐段残差信号信息。 此后，基于区段分割信息和逐段残差信号对剩余信号进行编码。

公开(公告)号：US20080189120A1

公开(公告)日：2008-08-07

申请号：US12021760

申请日：2008-01-29

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

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

IPC: G10L19/00

CPC classification number: G10L19/025

Abstract: 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.

Abstract translation: 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。