公开(公告)号：KR100867005B1

公开(公告)日：2008-11-10

申请号：KR1020070095519

申请日：2007-09-19

Applicant: 한국전자통신연구원

Inventor： 김낙우 ,  김재훈 ,  박일균 ,  송호영 ,  김봉태

IPC: H04N21/437 ,  H04N21/232

CPC classification number: H04N7/163 ,  H04N21/234318 ,  H04N21/4728 ,  H04N21/8456

Abstract: An individually customized multimedia data search service method and an apparatus thereof are provided to search multimedia data easily in settop box environment to reduce multimedia data search time, thereby maximizing user's satisfaction. A server(200) extracts characteristic information and metadata of an entire screen and a partial area with regard to each scene of multimedia a user wants to store, and generates and stores image index information by using the extracted characteristic information and metadata. When image search is requested with regard to any characteristic information from a settop box(100) which is at a remote place, the server searches any characteristic information and similar characteristic information from the image index information, and provides an image and metadata corresponding to each characteristic information.

Abstract translation: 提供了一种单独定制的多媒体数据搜索服务方法及其装置，用于在机顶盒环境中轻松搜索多媒体数据，以减少多媒体数据搜索时间，从而最大限度地提高用户的满意度。 服务器（200）提取关于用户想要存储的多媒体的每个场景的整个屏幕和部分区域的特征信息和元数据，并且通过使用提取的特征信息和元数据来生成和存储图像索引信息。 当对来自位于远处的机顶盒（100）的任何特征信息请求图像搜索时，服务器从图像索引信息中搜索任何特征信息和类似的特征信息，并提供与每个图像相对应的图像和元数据 特征信息。

公开(公告)号：KR100867004B1

公开(公告)日：2008-11-10

申请号：KR1020070095518

申请日：2007-09-19

Applicant: 한국전자통신연구원

Inventor： 오승훈 ,  박일균 ,  송호영 ,  김봉태 ,  문병권

IPC: H04N21/60 ,  H04N21/25

CPC classification number: H04L65/4084 ,  H04L65/4038 ,  H04N21/2343 ,  H04N21/262 ,  H04N21/47214 ,  H04N21/64322

Abstract: A bidirectional IPTV broadcast service method and a system thereof are provided to enable a guest to attend a broadcast remotely without inviting the guest to a studio, thereby supplying various type broadcast services. In a bidirectional IPTV broadcasting system, a broadcast controller(100) controls a bidirectional IPTV broadcast. A client(200) performs the existing IPTV STB function and simultaneously provides bidirectional IPTV broadcast services to a viewer. A platform server(400) transmits an actual broadcast stream to the viewer at a reserved time. A media server(300) controls the client participating in the bidirectional IPTV broadcast service. The media server performs a media server headend function which mixes media streams from the broadcast controller and the client.

Abstract translation: 提供了一种双向IPTV广播服务方法及其系统，以使得客人能够远程地参与广播，而不邀请客人到工作室，从而提供各种类型的广播服务。 在双向IPTV广播系统中，广播控制器（100）控制双向IPTV广播。 客户端（200）执行现有的IPTV STB功能，同时向观众提供双向IPTV广播服务。 平台服务器（400）在预约的时间向观众发送实际的广播流。 媒体服务器（300）控制参与双向IPTV广播服务的客户端。 媒体服务器执行媒体服务器头端功能，其将来自广播控制器和客户端的媒体流混合起来。

公开(公告)号：KR100862196B1

公开(公告)日：2008-10-09

申请号：KR1020070097488

申请日：2007-09-27

Applicant: 한국전자통신연구원

Inventor： 이상현 ,  이병탁 ,  윤심권 ,  송호영 ,  김봉태

IPC: H04N21/2381

CPC classification number: H04N5/4401 ,  H04N5/50 ,  H04N21/4345 ,  H04N21/4384 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/64322

Abstract: An IPTV digital-broadcast system for reducing channel change time and a method thereof are provided to obtain PID information of a changed channel and decode the broadcast stream easily by receiving and storing the EPG(Electronic Program Guide) provided by an EPG server, channel multicast group information, and channel PID information by using a client terminal. An IPTV digital-broadcast system comprises an IPTV(Internet Protocol Television) providing server(210), an EPG(Electronic Program Guide) server(220), a PID(Packet ID) providing server(230), at least one router(240), and at least one client terminal(250). The router has an IP network. The IPTV providing server manufactures broadcast data of at least one broadcast data into a broadcast stream having an MPEG-TS type. The EPG server acquires the EPG and channel multicast group information and provides the information and the channel PID information together to the client terminal. The PID providing server acquires the channel PID information and provides the information to the EPG server. The router joins the client terminal in the multicast group, copies the broadcast stream of the multicast group, and transmits the stream to the client terminal. The client terminal receives and stores the EPG provided by the EPG server, the channel multicast group information, and the channel PID information.

Abstract translation: 提供一种用于减少频道改变时间的IPTV数字广播系统及其方法，以便通过接收和存储由EPG服务器提供的EPG（电子节目指南），频道多播 组信息和通道PID信息。 IPTV数字广播系统包括IPTV（因特网协议电视）提供服务器（210），EPG（电子节目指南）服务器（220），PID（分组ID）提供服务器（230），至少一个路由器 ）和至少一个客户终端（250）。 路由器有一个IP网络。 IPTV提供服务器将至少一个广播数据的广播数据制成具有MPEG-TS类型的广播流。 EPG服务器获取EPG和信道多播组信息，并将信息和信道PID信息一起提供给客户端。 PID提供服务器获取信道PID信息，并将信息提供给EPG服务器。 路由器加入组播组中的客户端，复制组播组的广播流，并将该流发送给客户端。 客户终端接收并存储由EPG服务器提供的EPG，信道多播组信息和信道PID信息。

公开(公告)号：KR1020080053118A

公开(公告)日：2008-06-12

申请号：KR1020060125111

申请日：2006-12-08

Applicant: 한국전자통신연구원

Inventor： 김정학 ,  유태환 ,  송호영

IPC: H04L12/927 ,  H04B10/25 ,  H04B10/27 ,  H04B10/2581

CPC classification number: H04L47/805 ,  H04L47/6275 ,  H04L69/22

Abstract: An apparatus and a method for supporting/controlling functions associated with QoS(Quality of Service) in an EPON(Ethernet Passive Optical Network) system are provided to combine and use a classified class, an output port, and an LLID for the output port using information included into a service packet sufficiently, thereby dealing with various types of QoS by service. A packet classifying unit(200) classifies the class of a packet on the basis of the header information of a service packet. A reading unit(210) searches a port, to which the packet is outputted, and an LLID(Logical Link Identifier) corresponding to the port. A queue operating unit(220) sets a queue waiting in the port and determines the priority of the queue on the basis of the classified class and the output port, and the LLID. A bandwidth control unit(230) allocates a service bandwidth on the basis of at least one of the classified class, the output port, the LLID, or the output queue.

Abstract translation: 提供了一种用于支持/控制与EPON（以太网无源光网络）系统中的QoS（服务质量）相关的功能的装置和方法，以组合使用分类的类，输出端口和输出端口的LLID，使用 信息被充分包含在服务包中，从而通过服务处理各种类型的QoS。 分组分类单元（200）根据服务分组的报头信息对分组的类别进行分类。 读取单元（210）搜索输出分组的端口和对应于端口的LLID（逻辑链路标识符）。 队列操作单元（220）设置在端口中等待的队列，并根据分类的类和输出端口以及LLID来确定队列的优先级。 带宽控制单元（230）基于分类的类别，输出端口，LLID或输出队列中的至少一个来分配服务带宽。

公开(公告)号：KR1020080052338A

公开(公告)日：2008-06-11

申请号：KR1020070099926

申请日：2007-10-04

Applicant: 한국전자통신연구원

Inventor： 김낙우 ,  우운택 ,  김봉태 ,  이병탁 ,  송호영 ,  이원우

IPC: G06T19/20 ,  G06T1/00

CPC classification number: G06T19/006

Abstract: A personal multimedia studio platform device for authoring 3D contents and a method therefor are provided to allow a plurality of users to share a multimedia object by providing a function capable of authoring the 3D object by using a universal camera, providing strong interaction with the user through AR(Augmented Reality) embodiment and an automatic user motion extraction function, and allowing the user to receive a contents object from a remote server. A user object extracting unit(241) recognizes and extracts a user object from a 2D image through background learning for the inputted 2D image. An AR embodying unit(243) recognizes AR indication from the extracted user object, overlaps an AR virtual object received from a contents provider server on the AR indication, and generates an AR-embodied user object. An image synthesizing unit(245) renders a light source and a 3D object model estimated on the basis of the AR-embodied user object, a 2.5D background model received from the contents provider server, and an image used for generating the 2.5D background mode along time according to frames. An object adjusting unit(247) adjusts the AR-embodied user object, the 2.5D background model, the 3D object model, and a position of the light source in the image synthesizing unit according to a time.

Abstract translation: 提供用于创作3D内容的个人多媒体演播室平台装置及其方法，以允许多个用户通过使用通用相机提供能够创作3D对象的功能来共享多媒体对象，通过 AR（增强现实）实施例和自动用户运动提取功能，并且允许用户从远程服务器接收内容对象。 用户对象提取单元（241）通过用于所输入的2D图像的背景学习从2D图像识别并提取用户对象。 AR实体单元（243）从提取的用户对象识别AR指示，在AR指示上与从内容提供商服务器接收的AR虚拟对象重叠，并且生成具有AR特征的用户对象。 一个图像合成单元（245）呈现出基于AR实现的用户对象估计的光源和3D对象模型，从内容提供商服务器接收的2.5D背景模型和用于生成2.5D背景的图像 模式根据帧的时间。 对象调整单元（247）根据时间调整AR实施的用户对象，2.5D背景模型，3D对象模型以及光源在图像合成单元中的位置。

公开(公告)号：KR1020080050302A

公开(公告)日：2008-06-05

申请号：KR1020070105753

申请日：2007-10-19

Applicant: 한국전자통신연구원

Inventor： 이훈 ,  유태환 ,  송호영 ,  김봉태

IPC: H04L5/22 ,  H04B10/25

CPC classification number: H04Q11/0066 ,  H04L47/10

Abstract: A method of detecting an effective frame length for preventing a fragment loss in an EPON(Ethernet Passive Optical Network) MAC(Media Access Control) is provided to manage plural reference values for plural Ethernet frame buffers by using a minimum sized frame length memory of an ONU(Optical Network Unit). A reference value for a size of data to be transmitted is set in a frame buffer. A remaining frame length, which corresponds to a difference between a sum of input Ethernet frame lengths and a smallest reference value of the reference values greater than the sum of the lengths, is obtained. When the length of a new Ethernet frame is smaller than the remaining frame length, a sum of the previous Ethernet frame lengths is detected as an effective frame length. Otherwise, the sum of the previous Ethernet frame lengths and the sum of the new Ethernet frame lengths are detected as the effective frame lengths.

Abstract translation: 提供了一种用于防止EPON（以太网无源光网络）MAC（媒体访问控制）中的片段丢失的有效帧长度检测方法，用于通过使用最小尺寸的帧长度存储器来管理多个以太网帧缓冲器的多个参考值 ONU（光网络单元）。 要发送的数据的大小的参考值被设置在帧缓冲器中。 获得对应于输入以太网帧长度的总和和大于长度之和的参考值的最小参考值之间的差的剩余帧长度。 当新的以太网帧的长度小于剩余的帧长度时，先前的以太网帧长度之和被检测为有效的帧长度。 否则，检测以前的以太网帧长度和新的以太网帧长度之和作为有效帧长度。

公开(公告)号：KR1020080049582A

公开(公告)日：2008-06-04

申请号：KR1020070029346

申请日：2007-03-26

Applicant: 한국전자통신연구원

Inventor： 한경수 ,  송호영

IPC: H04L29/06 ,  H04L12/46 ,  H04L12/18 ,  H04B10/25

CPC classification number: H04Q11/0066 ,  H04L12/18 ,  H04L12/46 ,  H04L49/354 ,  H04Q11/0067

Abstract: A method for processing a frame to provide multicast and virtual LAN(Local Area network) services efficiently in an Ethernet passive optical network is provided to set the bit number of GID and LLID according to a network configuration environment while defining the GID and the LLID so as to constitute a group such as an LAN network without using a VLAN(Virtual LAN), thereby providing the multicast and the VLAN more efficiently. An OLT(Optical Line Terminal) system(120) and each of plural ONU(Optical Network Unit)s(170a~170n) set the bit number of LLID(Logical Link Identification) and GID(Group Identification) according to the number of ONU systems and the number of groups, and set the size of a GID field and an LLID field according to the set bit number. The OLT system allocates the LLID to each of the ONU systems constituting an EPON(Ethernet Passive Optical Network) system, divides the ONU systems into plural groups by service, and allocates the GID to each group. Each of the ONU systems receives each GID and LLID, and the GID and LLID of other ONU systems to store and manage the received IDs in a table. An ONU system(170a) sets the GID and LLID having the determined bit number to the preamble/SFD(Start Of Frame) field of a frame and transmits the frame. The OLT system receives the frame, selects one of unicast, broadcast, and multicast referring to the set mode value, the GID, and the LLID, and retransmits the frame in the selected one. An ONU system(170b) determines whether to receive the frame transmitted from the OLT system referring to the mode value, the GID, and the LLID set to the preamble/SFD field of the frame.

Abstract translation: 提供了一种用于处理在以太网无源光网络中有效地提供组播和虚拟LAN（局域网）服务的帧的方法，以在定义GID和LLID的同时根据网络配置环境设置GID和LLID的比特数， 构成不使用VLAN（Virtual LAN）的局域网的组，从而更有效地提供组播和VLAN。 OLT（Optical Line Terminal，光线路终端）系统（120）和多个ONU（Optical Network Unit，光网络单元）（170a〜170n）中的每一个根据ONU的数目设置LLID（逻辑链路标识）和GID（组识别）的比特数 系统和组的数量，并根据设置的位数设置GID字段和LLID字段的大小。 OLT系统向构成EPON（以太网无源光网络）系统的每个ONU系统分配LLID，通过服务将ONU系统划分成多个组，并将GID分配给每个组。 每个ONU系统接收每个GID和LLID，以及其他ONU系统的GID和LLID来存储和管理表中接收到的ID。 ONU系统（170a）将具有确定的比特数的GID和LLID设置为帧的前导码/ SFD（帧起始）字段，并发送该帧。 OLT系统接收该帧，参考设置模式值GID和LLID选择单播，广播和多播中的一个，并重新发送所选帧中的帧。 ONU系统（170b）参考参考帧的前导码/ SFD字段的模式值GID和LLID来确定是否接收从OLT系统发送的帧。

公开(公告)号：KR1020080029596A

公开(公告)日：2008-04-03

申请号：KR1020060096410

申请日：2006-09-29

Applicant: 한국전자통신연구원

Inventor： 이성용 ,  이병탁 ,  오승훈 ,  송호영 ,  김봉태

IPC: H04N21/4627 ,  H04N21/2347 ,  H04L9/32

CPC classification number: H04N7/1675 ,  H04L63/0428 ,  H04L63/0823 ,  H04L65/4076 ,  H04L2463/101 ,  H04N21/2347 ,  H04N21/2541 ,  H04N21/25816 ,  H04N21/4408 ,  H04N21/6125 ,  H04N21/6175 ,  H04N21/8355

Abstract: A personal DRM(Digital Rights Management)-applied personal multicasting service system and its providing method are provided to allow only an authenticated user to use a service to thus prevent improper contents from being broadcast or an unauthenticated user from illegally using a service. A personal broadcast transmitting unit(130) creates and stores contents, applies a personal DRM code to the created contents, and transmits the same to a personal broadcast receiving unit. The personal broadcast receiving unit(110) receives the transmitted contents, decodes the contents based on corresponding personal DRM certificates, and reproduces the same. After the personal broadcast transmitting unit allocates a channel for transmitting broadcast, a channel management server unit(140) manages the channel, and transmits information of a particular broadcast transmitting unit requested by the personal broadcast receiving unit. An authentication server unit(120) verifies the validity of the personal broadcast transmitting unit and the personal broadcast receiving unit, and issues/manages the personal DRM certificates.

Abstract translation: 提供个人DRM（数字版权管理）应用的个人多播服务系统及其提供方法，以仅允许经过身份验证的用户使用服务，从而防止不正当内容被广播或未经身份验证的用户非法使用服务。 个人广播发送单元（130）创建并存储内容，将个人DRM代码应用于所创建的内容，并将其发送到个人广播接收单元。 个人广播接收单元（110）接收所发送的内容，基于相应的个人DRM证书对内容进行解码，并再现。 在个人广播发送单元分配用于发送广播的信道之后，信道管理服务器单元（140）管理该信道，并且发送由个人广播接收单元请求的特定广播发送单元的信息。 验证服务器单元（120）验证个人广播发送单元和个人广播接收单元的有效性，并发布/管理个人DRM证书。

公开(公告)号：KR100818300B1

公开(公告)日：2008-03-31

申请号：KR1020060071507

申请日：2006-07-28

Applicant: 한국전자통신연구원

Inventor： 이상현 ,  송호영 ,  심재찬 ,  이병탁 ,  이성용

IPC: H04N21/60 ,  H04N21/437 ,  H04N21/2343

Abstract: 본 발명은 셋톱박스 기반의 전화연결 서비스 방법 및 이를 위한 장치에 관한 것으로서, 셋톱박스를 이용하는 인터넷 프로토콜 텔레비전에 있어서, 셋톱박스가 리모트 컨트롤러로부터 전화연결 서비스 요청 메시지를 수신하는 단계; 상기 셋톱박스가 발신측 단말 정보 및 착신측 단말 정보를 포함하는 전화연결 서비스 요청 메시지를 작성하여 리턴서버로 전송하는 단계; 및 상기 리턴서버가 상기 전화연결 서비스 요청 메시지를 팔레이 어플리케이션 서버를 통해 서비스 게이트웨이로 전달하여 발신측 단말과 착신측 단말이 전화연결 되도록 하는 단계를 포함하여 구성된다.
셋톱박스, 개방형 API, 전화연결, 리턴서버

公开(公告)号：KR100798915B1

公开(公告)日：2008-01-29

申请号：KR1020060027148

申请日：2006-03-24

Applicant: 한국전자통신연구원

Inventor： 이병탁 ,  이문섭 ,  심재찬 ,  송호영

IPC: H04L12/20 ,  H04L29/10 ,  H04L12/28 ,  H04L12/66

Abstract: 본 발명은 광가입자망 FTTH 시스템에서 광 망 종단장치(ONU)와 케이블모뎀간의 정합 장치 및 상기 FTTH 시스템 내에서 ONU와 케이블모뎀간을 정합하는 방법에 관한 것으로서, 케이블모뎀의 하향/상향 데이터 RF채널을 중계하여 ONU에 하향/상향 데이터 전기채널로 전달하는 기능을 수행함으로써, 결과적으로 케이블모뎀이 광가입자망 FTTH 시스템을 통해서 양방향 통신을 할 수 있도록 상기 ONU와 케이블모뎀간의 인터페이싱을 제공하는 정합장치 및 정합방법에 관한 것이다. 따라서, FTTH 시스템에서 HFC 시스템의 양방향 데이터 교환 서비스를 효과적으로 수용지원할 수 있고, 기존의 케이블모뎀을 변경할 필요가 없다.
FTTH, PON, AON, ONU, HFC, RF, 케이블모뎀