公开(公告)号：KR1020110071557A

公开(公告)日：2011-06-29

申请号：KR1020090128167

申请日：2009-12-21

Applicant: 한국전자통신연구원

Inventor： 박민식 ,  김휘용 ,  이한규 ,  홍진우

IPC: G11B20/10 ,  H04W80/06

CPC classification number: H04L65/602 ,  H04L65/604 ,  H04L69/14 ,  H04L69/22

Abstract: PURPOSE: A transceiving method and apparatus for parallely downloading and playing a multimedia file in the unidirectional broadcasting environment are provided to play multimedia data without wait even in the generation of an error on transmitted multimedia data. CONSTITUTION: An electronic file divider(110) divides a multimedia electronic file into a header and payload. A download protocol encapsulation unit(120) encapsulates a header piece file and a payload piece file with a data transfer protocol. A layer channel multiplexer(130) multiplexes a header TS(Transport Stream) with the TS of a high channel protection level. The layer channel multiplexer multiplexes a payload TS with the TS of a low channel protection level.

Abstract translation: 目的：提供用于在单向广播环境中并行下载和播放多媒体文件的收发方法和装置，即使在传输的多媒体数据上产生错误的情况下也可以播放多媒体数据。 构成：电子文件分割器（110）将多媒体电子文件分成标题和有效载荷。 下载协议封装单元（120）利用数据传输协议来封装头片文件和有效载荷片文件。 层信道多路复用器（130）将报头TS（传输流）与高信道保护级别的TS多路复用。 层信道复用器将有效载荷TS与低信道保护等级的TS复用。

公开(公告)号：KR1020110069489A

公开(公告)日：2011-06-23

申请号：KR1020090126244

申请日：2009-12-17

Applicant: 한국전자통신연구원

Inventor： 곽효근 ,  김광용 ,  유정주 ,  류원 ,  홍진우

IPC: H04L12/801 ,  H04W28/14 ,  H04N7/14

CPC classification number: H04N21/47202

Abstract: PURPOSE: A data communication method for near-video-on-demand service in a radio environment is provided to reduce a simultaneous channel access number and a standby time of a user at the same time through using a Fibonacci method and staggered method. CONSTITUTION: A data division unit firstly partitions VOD data(10). The divided data is secondarily partitioned among the primarily divided VOD data in which data division part is primarily divided in Fibonacci method(20). A data transmission unit transmits a secondarily divided data in a Fibonacci method(30).

Abstract translation: 目的：提供一种无线电环境中近视频点播服务的数据通信方法，通过使用斐波纳契法和交错方法同时减少用户的同时通道接入号码和待机时间。 构成：数据分割单元首先对VOD数据进行分区（10）。 分割数据在主分割VOD数据中被二次分割，其中数据分割部分主要以斐波纳契法（20）分割。 数据传输单元以斐波那契方法（30）发送次分割数据。

公开(公告)号：KR1020110052527A

公开(公告)日：2011-05-18

申请号：KR1020100112873

申请日：2010-11-12

Applicant: 한국전자통신연구원

Inventor： 이하현 ,  임성창 ,  정세윤 ,  최해철 ,  김휘용 ,  조숙희 ,  이진호 ,  김종호 ,  최진수 ,  홍진우 ,  심동규 ,  오승준 ,  박시내 ,  황능주

IPC: H04N19/70

Abstract: PURPOSE: A method and apparatus for video encoding/decoding using an adaptive codeword assignment to syntax elements are provided to enhance encoding performance under an image encoding environment having various encoding bit rates and various image sizes. CONSTITUTION: A feature analysis unit(111) analyzes the features of encoding data obtained from an input image, and a codeword assignment unit(112) allocates a codeword to a symbol value of a syntax element when using the input image. An encoding unit(113) encodes the syntax elements in the codeword to generate a bit stream.

Abstract translation: 目的：提供一种使用对语法元素的自适应码字分配进行视频编码/解码的方法和装置，以增强具有各种编码比特率和各种图像尺寸的图像编码环境下的编码性能。 构成：特征分析单元（111）分析从输入图像获得的编码数据的特征，并且码字分配单元（112）在使用输入图像时将码字分配给语法元素的符号值。 编码单元（113）对码字中的语法元素进行编码以产生比特流。

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：KR101027602B1

公开(公告)日：2011-04-06

申请号：KR1020090025735

申请日：2009-03-26

Applicant: 한국전자통신연구원

Inventor： 최해철 ,  이진호 ,  정세윤 ,  최진수 ,  홍진우 ,  임성창

IPC: H04N19/147 ,  H04N19/166

Abstract: 예비 픽쳐의 적응적 부호화/복호화 방법 및 그 장치를 제안한다. 본 발명의 실시예에 따른 적응적으로 예비 픽쳐를 삽입하는 부호화 장치는 입력영상과 전송채널 에러율을 수신하고 상기 입력영상을 구성하는 영상 프레임 각각에 예비 픽쳐(Picture)를 삽입하여 송신할 때의 비용 값인 삽입 비용과 예비 픽쳐를 삽입하지 않고 송신할 때의 비용 값인 비삽입 비용을 비용 함수를 이용하여 계산하는 비용함수 계산부; 상기 삽입 비용과 상기 비삽입 비용 간의 크기를 비교하는 비용 비교부; 상기 삽입 비용이 상기 비삽입 비용보다 작으면 상기 영상 프레임에 예비 픽쳐를 삽입하는 예비 픽쳐 삽입부; 및, 상기 예비 픽쳐를 삽입한 영상 프레임을 부호화하는 부호화부를 포함한다.
예비 픽쳐, 적응적 부호화, 적응적 복호화

公开(公告)号：KR1020110029055A

公开(公告)日：2011-03-22

申请号：KR1020090122218

申请日：2009-12-10

Applicant: 한국전자통신연구원

Inventor： 김민제 ,  백승권 ,  강경옥 ,  장대영 ,  이태진 ,  장인선 ,  홍진우

IPC: G10L21/0272 ,  G10L25/81

Abstract: PURPOSE: A method and system for separating a music sound source without using a sound source database are provided to separate a sound source generated using a rhythm musical instrument based on characteristics of the rhythm musical instrument repeated in an aspect of time, and thereby may separate a sound source included in a mixed signal even when a learning database generated using a specific sound source is absent. CONSTITUTION: An NMPCF(Nonnegative Matrix Partial Co-Factorization) analysis unit(130) obtains info nation shared by the plurality of segments in accordance with an NMPCF algorithm. A rhythm instrument signal has frequency characteristics such as a pitch, that may not be easily changed, and may be repeatedly generated, whereby the shared information may correspond to information of a rhythm musical instrument. A target instrument signal separating unit(140) separates a target instrument signal corresponding to a specific sound source from the mixed signal by calculating an inner product between the entity matrices obtained by the NMPCF analysis unit. The target instrument signal is a signal including sounds generated using the rhythm musical instrument. A signal association unit(150) associates the target instrument signals for each of the plurality of segments separated in the target instrument signal separating unit.

Abstract translation: 目的：提供一种用于在不使用声源数据库的情况下分离音乐声源的方法和系统，用于基于在一段时间内重复的节奏乐器的特征来分离使用节奏乐器产生的声源，从而可以分离 即使当使用特定声源生成的学习数据库不存在时，也包含在混合信号中的声源。 构成：NMPCF（非负矩阵部分协同因子分解）分析单元（130）根据NMPCF算法获得由多个段共享的信息国。 节奏乐器信号具有诸如间距的频率特性，其可能不容易改变，并且可以重复地产生，由此共享信息可以对应于节奏乐器的信息。 目标仪器信号分离单元（140）通过计算由NMPCF分析单元获得的实体矩阵之间的内积，将与特定声源相对应的目标仪器信号与混合信号分离。 目标仪器信号是包括使用节奏乐器产生的声音的信号。 信号关联单元（150）将目标仪器信号分离单元中分离出的多个分段中的每个分段的目标仪器信号相关联。

公开(公告)号：KR1020110023693A

公开(公告)日：2011-03-08

申请号：KR1020090127946

申请日：2009-12-21

Applicant: 한국전자통신연구원

Inventor： 이태진 ,  김민제 ,  강경옥 ,  장대영 ,  장인선 ,  백승권 ,  홍진우

IPC: G10L19/20 ,  H04N5/60 ,  H04N21/233 ,  G11B20/10

Abstract: PURPOSE: An apparatus and a method for structuring bitstream for an object-based audio service are provided to reduce a degradation in the sound quality occurring due to an excessive volume control by designating an upper bound value and a lower bound value of a reproduction volume in an object-based audio service. CONSTITUTION: A bitstream splitting unit divides a bitstream into a file header, and an audio object frame through sound source splitting(110). A reproduction level information storage unit stores the reconstruction level information for the regeneration of the audio object within the file header(120). A preset storage unit stores the preset information for the regeneration of the audio object within the file header(130).

Abstract translation: 目的：提供一种用于构建用于基于对象的音频服务的比特流的装置和方法，以通过指定再现音量的上限值和下限值来减少由于过度音量控制而产生的声音质量下降 一种基于对象的音频服务。 构成：比特流分割单元通过声源分割将比特流分成文件头和音频对象帧（110）。 再现级别信息存储单元将用于音频对象再生的重建级别信息存储在文件头部（120）内。 预设存储单元将用于音频对象的再生的预设信息存储在文件头部（130）内。

公开(公告)号：KR1020110023688A

公开(公告)日：2011-03-08

申请号：KR1020090122217

申请日：2009-12-10

Applicant: 한국전자통신연구원 ,  포항공과대학교 산학협력단

Inventor： 김민제 ,  최승진 ,  유지호 ,  강경옥 ,  장인선 ,  홍진우

IPC: G10L21/0272 ,  G10L25/81

Abstract: PURPOSE: A system for separating musical sound source is provided to efficiently divide a specific sound source in a mixed sound source by reorganizing the mixed sound source into the specific sound source and other sound source. CONSTITUTION: A system for separating musical sound source includes a database(110), a time-frequency domain conversion unit(120), an NMPCF(Nonnegative Matrix Partial Co-Factorization) analysis unit(130), a target instrument signal separating unit(140), and a time domain signal conversion unit(150). The database stores information about a solo performance using a predetermined musical instrument, and transmits the information about the solo performance as a type of a predetermined sound source signal(x1). The predetermined sound source has a significantly great amount of data to include various characteristics of the predetermined sound source. In this case, a great amount of database signals may need to be processed for each sound source separation operation.

Abstract translation: 目的：提供一种用于分离音乐声源的系统，通过将混合声源重组为特定声源和其他声源来有效地分割混合声源中的特定声源。 用于分离音乐声源的系统包括数据库（110），时间 - 频域转换单元（120），NMPCF（非负矩阵部分因子分解）分析单元（130），目标仪器信号分离单元 140）和时域信号转换单元（150）。 数据库使用预定的乐器存储关于个人演奏的信息，并且发送关于个性表演的信息作为预定声源信号的类型（x1）。 预定声源具有显着大量的数据以包括预定声源的各种特性。 在这种情况下，可能需要为每个声源分离操作处理大量的数据库信号。

公开(公告)号：KR101015888B1

公开(公告)日：2011-02-23

申请号：KR1020080089997

申请日：2008-09-11

Applicant: 한국전자통신연구원

Inventor： 탕청꽁 ,  강정원 ,  최해철 ,  유정주 ,  홍진우

IPC: H04N19/30 ,  H04N19/147

Abstract: 본 발명은 스케일러블비디오 코딩에서 각 프레임에 우선순위를 할당하기 위해 비디오 패킷의 왜곡값을 계산하는 장치에 관한 것이다. 본 발명의 패킷 왜곡값계산장치는 적절한 중간조건을 설정한 후, 한 가지 유형의 왜곡값 만을 계산하는 것을 특징으로 한다. 이로써, 왜곡값 저장에 요구되는 메모리를 줄일 수 있고 또한 한 개의 서버가 동시에 많은 비트스트림을 처리할 수 있다.
우선순위, SVC, 왜곡값

公开(公告)号：KR1020110015399A

公开(公告)日：2011-02-15

申请号：KR1020100075931

申请日：2010-08-06

Applicant: 한국전자통신연구원 ,  광운대학교 산학협력단 ,  경희대학교 산학협력단 ,  한국과학기술원

Inventor： 임성창 ,  이하현 ,  김휘용 ,  정세윤 ,  조숙희 ,  최해철 ,  김종호 ,  이진호 ,  최진수 ,  홍진우 ,  심동규 ,  오승준 ,  박광훈 ,  김문철 ,  황능주 ,  박시내

IPC: H04N19/60 ,  H04N19/124

CPC classification number: H04N19/122 ,  H04N19/107 ,  H04N19/11 ,  H04N19/119 ,  H04N19/12 ,  H04N19/124 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/52 ,  H04N19/55 ,  H04N19/593 ,  H04N19/60 ,  H04N19/615 ,  H04N19/625 ,  H04N19/91

Abstract: PURPOSE: A video encoding device and a method thereof are provided to separate a differential image block into non-border area and a border area base on border line within the differential image block, thereby increasing energy compaction. CONSTITUTION: A signal divider(131) divides a differential image block into the first area and the second area. Through DCT(Discrete Cosine Transform), a converting and encoding unit(133) performs conversion encoding of the first area. A quantization unit(135) quantize output of the conversion encoding unit in a frequency domain. A spatial area quantization unit(137) quantizes the second area in a spatial domain. By using the quantization unit and output of the space area quantization unit, an entropy encoding unit(180) performs entropy encoding.

Abstract translation: 目的：提供一种视频编码装置及其方法，用于将差分图像块分离成非边界区域和基于差分图像块内的边界线的边界区域，从而增加能量压缩。 构成：信号分配器（131）将差分图像块分成第一区域和第二区域。 通过DCT（离散余弦变换），转换和编码单元（133）执行第一区域的转换编码。 量化单元（135）对频域中的转换编码单元的输出进行量化。 空间区域量化单元（137）对空间域中的第二区域进行量化。 通过使用量化单元和空间区域量化单元的输出，熵编码单元（180）执行熵编码。