公开(公告)号：KR1020130078534A

公开(公告)日：2013-07-10

申请号：KR1020110147537

申请日：2011-12-30

Applicant: 한국전자통신연구원

Inventor： 유재현 ,  서정일 ,  이태진 ,  최근우 ,  강경옥

IPC: H04S3/00 ,  G10L19/00

CPC classification number: H04S3/008 ,  G10L19/008 ,  H04S2400/03 ,  H04S2420/13

Abstract: PURPOSE: A front wave field synthesis (WFS) system and a method for providing surround sound using a 7.1 channel codec are provided to install fewer loud speakers and offer a wave field effect. CONSTITUTION: A front WFS system includes a front WFS signal encoding device (110). The front WFS signal encoding device includes a content receiving unit (111) and an encoding unit (112). The content receiving unit receives WFS content including first channels corresponding to a front array speaker and second channels corresponding to a surround speaker. The encoding unit encodes the first channel and the second channel by a multi-channel encoder corresponding to the number of channels included in the WFS content. The encoding unit performs encoding by inputting the first channel and the second channel to the multi-channel encoder according to the condition for identifying the first and second channels. [Reference numerals] (110) Front WFS signal encoding device; (111) Content receiving unit; (112) Encoding unit; (113) Signal transmitting unit; (120) Front WFS signal decoding device; (121) Decoding unit; (122) Channel classifying unit; (123) Channel transmitting unit

Abstract translation: 目的：提供前波场合成（WFS）系统和使用7.1声道编解码器提供环绕声的方法来安装较少扬声器并提供波场效应。 构成：前WFS系统包括前WFS信号编码装置（110）。 前端WFS信号编码装置包括内容接收单元（111）和编码单元（112）。 内容接收单元接收包括对应于前阵列扬声器的第一声道和对应于环绕扬声器的第二声道的WFS内容。 编码单元通过对应于包括在WFS内容中的频道数量的多通道编码器对第一通道和第二通道进行编码。 编码单元根据用于识别第一和第二信道的条件，将第一信道和第二信道输入到多信道编码器来执行编码。 （附图标记）（110）前WFS信号编码装置; （111）内容接收单元; （112）编码单元; （113）信号发送单元; （120）前置WFS信号解码装置; （121）解码单元; （122）信道分类单元; （123）信道发送单元

公开(公告)号：KR1020130054159A

公开(公告)日：2013-05-24

申请号：KR1020120127499

申请日：2012-11-12

Applicant: 한국전자통신연구원

Inventor： 서정일 ,  백승권 ,  강경옥 ,  이태진 ,  이용주 ,  유재현 ,  최근우 ,  김진웅

IPC: G10L19/005

CPC classification number: G10L19/008 ,  G10L19/24

Abstract: PURPOSE: An encoding device for supporting a scalable multi-channel audio signal, a decoding device, and a method thereof are provided to restore and compress a multi-channel audio signal for providing three-dimensional audio in a realistic broadcasting environment. CONSTITUTION: A signal generator(201) generates a compatible multi-channel audio signal using a multi-channel audio signal and an audio object signal. An encoding unit(202) generates a first bit stream through a hierarchical encoding of the compatible multi-channel audio signal. A second encoding unit(203) generates a second bit stream through the encoding of the audio object signal. A bit stream formatter(204) generates an output bit stream using the first and second bit streams. [Reference numerals] (101) Encoding device; (201) Signal generator; (202) First encoding unit; (203) Second encoding unit; (204) Bit stream formatter; (AA) Multichannel audio signal; (BB) Audio object signal; (CC) Compatible multichannel audio signal; (DD) Second bit stream; (EE) First bit stream; (FF) First additional information; (GG) Second additional information; (HH) Third additional information; (II) Output bit stream

Abstract translation: 目的：提供一种用于支持可扩展多声道音频信号的编码装置，解码装置及其方法，用于恢复和压缩用于在逼真的广播环境中提供三维音频的多声道音频信号。 构成：信号发生器（201）使用多声道音频信号和音频对象信号产生兼容的多声道音频信号。 编码单元（202）通过兼容多声道音频信号的分层编码产生第一比特流。 第二编码单元（203）通过音频对象信号的编码产生第二位流。 比特流格式化器（204）使用第一和第二比特流产生输出比特流。 （101）编码装置; （201）信号发生器; （202）第一编码单元; （203）第二编码单元; （204）比特流格式化器; （AA）多声道音频信号; （BB）音频对象信号; （CC）兼容的多声道音频信号; （DD）第二位流; （EE）第一位流; （FF）第一附加信息; （GG）第二附加信息; （HH）第三次附加信息; （II）输出比特流

公开(公告)号：KR1020120119964A

公开(公告)日：2012-11-01

申请号：KR1020110084014

申请日：2011-08-23

Applicant: 한국전자통신연구원

Inventor： 서정일 ,  유재현 ,  강경옥 ,  신민철 ,  파지필리포엠. ,  넬슨필립에이.

IPC: H04S3/00 ,  H04R5/02 ,  G11B20/10

CPC classification number: H04S3/006

Abstract: PURPOSE: A method and apparatus for reproducing a 3 dimensional sound field are provided to improve robustness of the apparatus by evenly distributing energy of source strength. CONSTITUTION: A control region is determined based on a wavelength of an excitation frequency(101). One or more candidate control points are arranged on the control region based on a loud speaker array(102). A non-uniform control point corresponding to a non-uniform loudspeaker is determined from the candidate control points(103). The non-uniform control point to be added to the control point is determined(104). Determination of the non-uniform control point is performed based on an inner product of a target unit vector corresponding to the target control point and a candidate unit vector corresponding to the candidate control point. [Reference numerals] (101) Control region determination; (102) Arrangement of a candidate control point; (103) Determination of a non-uniform control point corresponding to a non-uniform loudspeaker; (104) Determination of adding the non-uniform control point to the control point; (AA) Start; (BB) End

Abstract translation: 目的：提供一种用于再现三维声场的方法和装置，以通过均匀分布源强度的能量来改善装置的鲁棒性。 构成：基于激励频率的波长来确定控制区域（101）。 一个或多个候选控制点基于扬声器阵列（102）布置在控制区域上。 从候选控制点（103）确定对应于不均匀扬声器的不均匀控制点。 确定要添加到控制点的不均匀控制点（104）。 基于与目标控制点对应的目标单位矢量与候选控制点对应的候选单位矢量的内积来执行不均匀控制点的确定。 （附图标记）（101）控制区域确定; （102）候选人控制点的安排; （103）确定对应于不均匀扬声器的不均匀控制点; （104）确定将不均匀控制点添加到控制点; （AA）开始; （BB）结束

公开(公告)号：KR1020120068525A

公开(公告)日：2012-06-27

申请号：KR1020100130187

申请日：2010-12-17

Applicant: 한국전자통신연구원

Inventor： 유재현 ,  정현주 ,  전상배 ,  서정일 ,  강경옥 ,  성굉모

IPC: G11B20/10 ,  H04S3/00 ,  H04S7/00

CPC classification number: G11B20/10 ,  H04R2201/401 ,  H04S3/002 ,  H04S3/008 ,  H04S7/40

Abstract: PURPOSE: A down-mixing apparatus of a sound field synthesis signal and a method thereof are provided to reproduce optimized sound field synthesis signal in a multi-channel audio reproducing system in a lower multi-channel audio play system. CONSTITUTION: A reproducing location information estimating unit(110) estimates reproducing location information of an inputted sound field mixing signal. A main signal estimating unit(120) estimates a main signal of the sound field signal based on reproducing location information. A sound image fixing information estimating unit(130) estimates the sound field synthesis signal based on the main signal.

Abstract translation: 目的：提供一种声场合成信号的下混合装置及其方法，用于在较低多声道音频播放系统中的多声道音频再现系统中再现优化的声场合成信号。 构成：再现位置信息估计单元（110）估计输入的声场混合信号的再现位置信息。 主信号估计单元（120）基于再现位置信息来估计声场信号的主信号。 声像定影信息估计单元（130）基于主信号估计声场合成信号。

公开(公告)号：KR1020120031998A

公开(公告)日：2012-04-04

申请号：KR1020120030545

申请日：2012-03-26

Applicant: 한국전자통신연구원

Inventor： 서정일 ,  백승권 ,  장인선 ,  장대영 ,  홍진우 ,  김진웅

IPC: G10L19/00

CPC classification number: G10L19/008 ,  G10L19/02 ,  G10L19/18

Abstract: PURPOSE: A device for restoring multichannel audio signal using an HE-AAC(High-Efficiency Advanced Audio Coding) decoder and an MPEG surround decoder and a method thereof are provided to add a delay stage when connecting a downmix signal of the HE-AAC decoder to a QMF(Quadrature Mirror Filter) signal of the real number domain, a QMF signal of the complex number domain, and a time domain signal. CONSTITUTION: When a downmix signal of a time domain encoded by HE-AAC is combined with an MPEG surround low power decoder, a delay stage(501) applies delay to extracted spatial parameters. The delay is identical to the sum of the delay of HE-AAC QMF synthetic filter process, real QMF(502) and Nyquist analysis filter(504) process of the MPEG surround low power decoder, and a real to complex converter(503).

Abstract translation: 目的：提供一种用于使用HE-AAC（高效率高级音频编码）解码器和MPEG环绕解码器及其方法恢复多声道音频信号的装置，用于在连接HE-AAC解码器的下混合信号时增加延迟级 到实数域的QMF（正交镜像滤波器）信号，复数域的QMF信号和时域信号。 构成：当由HE-AAC编码的时域的下混合信号与MPEG环绕低功率解码器组合时，延迟级（501）对提取的空间参数应用延迟。 该延迟与MPEG环绕低功率解码器的HE-AAC QMF合成滤波处理，实际QMF（502）和奈奎斯特分析滤波器（504）处理的延迟和真实到复杂转换器（503）的总和相同。

公开(公告)号：KR101095938B1

公开(公告)日：2011-12-19

申请号：KR1020080092738

申请日：2008-09-22

Applicant: 한국전자통신연구원 ,  광운대학교 산학협력단

Inventor： 서정일 ,  김욱중 ,  김규헌 ,  강경옥 ,  홍진우 ,  이영렬 ,  한기훈 ,  허재호 ,  심동규 ,  오승준

IPC: H04N19/129 ,  H04N19/103

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야
본 발명은 적응적 스캐닝을 이용한 동영상 부호화/복호화 장치 및 그 방법에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은 동영상을 부호화하는데 있어서 소정 크기의 블록에 대한 인트라 예측 수행 후, 잔차 신호의 DCT 및 양자화된 계수에 대한 스캐닝 방법을 인트라 예측 모드에 따라 적응적으로 적용함으로써, 압축률을 높일 수 있는 적응적 스캐닝을 이용한 동영상 부호화 장치 및 방법과 그에 따른 복호화 장치를 제공하는데 그 목적이 있음.
3. 발명의 해결방법의 요지
본 발명은 적응적 스캐닝을 이용한 동영상 부호화 장치로서, 예측 모드를 선택하여 출력하기 위한 모드 선택 수단; 상기 예측 모드에 따라 입력 영상의 부호화할 화소 값들을 예측하여, 잔차 신호 블록을 출력하기 위한 예측 수단; 상기 잔차 신호 블록을 DCT 변환하고 양자화하기 위한 변환/양자화 수단; 및 상기 양자화된 잔차 신호 블록을 상기 예측 모드에 따라 적응적으로 스캐닝하여 부호화하기 위한 부호화 수단을 포함함.
4. 발명의 중요한 용도
본 발명은 동영상 부호화 시스템 등에 이용됨.
인트라 예측, DCT 계수, 스캐닝, 인코딩

公开(公告)号：KR1020110062912A

公开(公告)日：2011-06-10

申请号：KR1020090119780

申请日：2009-12-04

Applicant: 한국전자통신연구원

Inventor： 유재현 ,  서정일 ,  장대영 ,  강경옥

IPC: G11B20/10

CPC classification number: G11B20/00992 ,  G11B2020/10592 ,  H04R3/12

Abstract: PURPOSE: A multichannel audio reproduction apparatus and system are provided to integrate an amplifier and a plurality of loud speakers to one module. CONSTITUTION: Channel controllers(121,131,141,151) especially divide a multichannel audio signal per channel. Amplifiers(122,132,142,152) amplify the divided multichannel audio signal. A plurality of loud speakers(123,133,143,153) reproduces each of the amplified channel audio signals. The channel controller, the amplifier, and the loud speakers are integrated into one module.

Abstract translation: 目的：提供多声道音频再现装置和系统，以将放大器和多个扬声器集成到一个模块。 构成：通道控制器（121,131,141,151）特别是对每个通道划分多通道音频信号。 放大器（122,132,142,152）放大分频的多声道音频信号。 多个扬声器（123,133,143,153）再现每个放大的声道音频信号。 通道控制器，放大器和扬声器集成在一个模块中。

公开(公告)号：KR1020110036023A

公开(公告)日：2011-04-06

申请号：KR1020110014763

申请日：2011-02-18

Applicant: 한국전자통신연구원

Inventor： 백승권 ,  서정일 ,  이태진 ,  이용주 ,  장대영 ,  홍진우 ,  김진웅

IPC: G10L19/008 ,  G10L19/20 ,  H03M7/30 ,  H04N21/233

CPC classification number: G10L19/008 ,  G10L19/0017 ,  G10L19/173 ,  H04S3/002 ,  H04S7/30 ,  H04S2400/11 ,  H04S2420/03 ,  G10L19/00

Abstract: PURPOSE: An apparatus and method for coding and decoding multi-object audio signal are provided to perform coding and decoding multi-object audio signal which is composed of various channels providing reverse compatibility about the existing SAC bitstream. CONSTITUTION: An audio object coding unit codes audio-object signals inputted to the coding apparatus based on a spatial cue and creating rendering information for the coded audio-object signals. The rendering information includes spatial cue information for audio-object signals, channel information of the audio-object signals, and identification information of the audio-object signals.

Abstract translation: 目的：提供一种用于对多对象音频信号进行编码和解码的装置和方法，用于对由现有SAC比特流提供反向兼容性的各种信道组成的多对象音频信号进行编码和解码。 构成：音频对象编码单元基于空间提示对输入到编码装置的音频对象信号进行编码，并生成编码音频对象信号的绘制信息。 呈现信息包括用于音频对象信号的空间提示信息，音频对象信号的频道信息以及音频对象信号的识别信息。

公开(公告)号：KR1020100138716A

公开(公告)日：2010-12-31

申请号：KR1020090120078

申请日：2009-12-04

Applicant: 한국전자통신연구원

Inventor： 서정일 ,  유재현 ,  강경옥

IPC: G10L19/008 ,  G10L19/20 ,  H03M7/30

Abstract: PURPOSE: The high quality multichannel audio encoder and decoding apparatus are compressed the high quality multi-channel audio signal by keeping the play system like AC-3 and compatibility. CONSTITUTION: The channel base audio encoding part(200) is proceed the channel base audio CODER based on the property of the inputted audio signal about the audio signal. The object-based audio encoding part(300) is proceed the object-based audio CODER based on the property of the audio signal about the audio signal.

Abstract translation: 目的：高质量的多声道音频编码器和解码装置通过保持像AC-3这样的播放系统和兼容性来压缩高质量的多声道音频信号。 构成：信道基音频编码部分（200）基于输入的音频信号关于音频信号的属性来进行信道基音频编解码器。 基于对象的音频编码部分（300）基于关于音频信号的音频信号的属性来进行基于对象的音频编解码器。

公开(公告)号：KR1020100084874A

公开(公告)日：2010-07-28

申请号：KR1020090004244

申请日：2009-01-19

Applicant: 한국전자통신연구원

Inventor： 장인선 ,  김휘용 ,  서정일 ,  강경옥 ,  이한규 ,  홍진우 ,  김진웅 ,  안치득 ,  함승철

IPC: H04R3/00

CPC classification number: H04R3/00 ,  G10L19/008

Abstract: PURPOSE: The apparatus for the inter-object regeneration relation and volume information storage and interpretive method and this easily can easily force and restriction of the object-based audio service by advance defining the force/constraint condition about the regeneration relation of inter-object and replay volume. CONSTITUTION: The object-based audio player(101) inputs the audio object information and the force/condition information included within the object-based audio file(102) to the force/condition information Analysis module. Object the audio track or the group. The combination generation consisting of the group is the audio track or group. The force/condition information Analysis module(103) interprets and the magnetic track decoded before the decryption algorithm of the audio object is or reject adopted.

Abstract translation: 目的：用于物体间再生关系和体积信息存储和解释方法的装置，并且容易地容易地强制和限制基于对象的音频服务，通过提前定义关于对象间和再现关系的再生关系的力/约束条件 重播音量。 构成：基于对象的音频播放器（101）将包括在基于对象的音频文件（102）内的音频对象信息和强制/条件信息输入到力/条件信息分析模块。 对象音轨或组。 由组组成的组合生成是音轨或组。 力/条件信息分析模块（103）解释并且在采用音频对象的解密算法之前解码的磁道。