Abstract:
PURPOSE: An augmented broadcasting stream transmitting apparatus and method and an augmented broadcasting service providing apparatus and method are provided to enable augmented broadcasting metadata, which contains positioning information of augmented content, to reach a reception terminal at a predetermined time earlier than a corresponding video frame. CONSTITUTION: An image stream generating part (110) generates an image stream based on the image source of an augmented broadcasting service. A metadata stream generating part (120) generates a metadata stream by generating metadata related to augmented content of the augmented broadcasting service based on the image source. A re-multiplexing part (140) generates an augmented broadcasting stream by receiving and multiplexing the image stream and metadata stream, and then transmits the augmented broadcasting stream. [Reference numerals] (100) Image source; (110) Image stream generating part; (120) Metadata stream generating part; (130) PSIP server; (140) Re-multiplexing part; (150) Augmented broadcast stream; (AA) Image stream; (BB) Meta data stream; (CC) PSIP data
Abstract:
PURPOSE: A remote roaming service system of a terminal in digital cable broadcasting is provided to perform subscriber roaming authentication according to a roaming contract. CONSTITUTION: A server(103) receives profile information related to approval of a roaming service target terminal. If a terminal is a roaming terminal, the server receives a key value necessary for broadcasting service initialization from a corresponding cable broadcasting service provider. The server transmits desired PPV(Pay Per View) content to the terminal.
Abstract:
PURPOSE: A head-end apparatus for cable network and a video processing method are provided to economically process various types of video service flows flowing into a head-end using the miniaturized head-end apparatus. CONSTITUTION: A head-end apparatus for cable network comprises the following: an M-CMTS(modular-cable modem termination system)(112) outputting a video stream based on the DOCSIS(data over cable service interface specification); a video processing unit(200) processing one of the video stream selected from the video stream based on the DOCSIS, a MPEG-2 TS video stream, or a video stream on IP(internet protocol) network; and a cable modem(130) receiving the processed video stream using HFC(hybrid fiber-coaxial) network(120).
Abstract:
Disclosed is a downloadable conditional access system (DCAS) including a key request unit to transmit a key request message to an authentication server, an authentication request unit to request authentication from the authentication server based on a key response message received from the authentication server in response to the key request message, and a session establishment unit to establish a session with the authentication server, based on an authentication response message received in response to the authentication request.
Abstract:
PURPOSE: A DACS head-end system for processing an error of secure module client software and a method thereof are provided to block the additional transmission of the secure module client software having the error by altering the transmission policy of the secure module client software related to the error information. CONSTITUTION: A policy server(120) stores/processes the transmission policy of the secure module client software. A download server(130) transmits the secure module client software to the authenticated terminal(140). An authentication proxy server receives the result information of the reception/installation of the secure module client software from the terminal and sends the result information to the policy server and the download server. If the error information is over the standard value in the secure module client software, the policy server alters the transmission policy.
Abstract:
PURPOSE: A DCAS, SM, TP and a method for certificating security are provided to form a safe security environment by using a security protocol module in which mutual authentication and a security channel between a security module and a transmission process module are formed. CONSTITUTION: A security module fairing part transmit a key request message including security module(44-44n) and a transmission process module(46-46n). The security module fairing part receives a key response message including an encoding seed key from a head end. The secure module key generating unit transmits the contents encryption key based on the encoding seed key to the transmittal module. The secure module key generating unit receives the contents encryption key of the transport module. The security module encryption unit compares the contents encryption key with the contents encryption key.
Abstract:
PURPOSE: A downloadable conditional access system, a channel setting method, and a message structure for 2-way communication between terminals are provided to enable a user to safely obtain the network access information of an authentication server from a terminal. CONSTITUTION: A downloadable conditional access system comprises a verification part(210), an extracting unit(230), and a channel setting part(240). The verification part verifies electronic signature and integrity on the message of an authentication server. The extracting unit extracts the network access information of the authentication server from the verified message. The channel setting part sets up the communications channel with the authentication server based on the extracted network access information.
Abstract:
A method and an apparatus for managing and transmitting a conditional access application program per a kind to supply a downloadable conditional access service are provided to minimize an interface with a DCAS system, thereby guaranteeing security and freedom to a CAS service provider. A DCAS(Downloadable Conditional Access System) manager device stores a CAS(Conditional Access System) application program in an IPS(Integrated Personalization Server)(140) and supplies IPS access information or CAS application program to be transmitted to a terminal to an authentication proxy. The authentication proxy(130) provides mutual authentication, the IPS access information and installation related information about the terminal. The IPS transmits the CAS application program to the terminal.
Abstract:
1. 청구범위에 기재된 발명이 속한 기술분야 본 발명은 지상파 디지털 멀티미디어 방송 기반 알에프아이디 응용 서비스 제공 시스템 및 그 방법에 관한 것임. 2. 발명이 해결하려고 하는 기술적 과제 본 발명은 이동통신망 네트워크를 통해 리턴채널을 갖고, RFID 리더 기능이 없는 지상파 DMB 단말에서 RFID(Radio Frequency IDentification) 응용 서비스를 제공받을 수 있는 지상파 디지털 DMB 방송 기반 RFID 응용 서비스 제공 시스템 및 그 방법을 제공하는데 그 목적이 있음. 3. 발명의 해결방법의 요지 본 발명은 지상파 DMB(Digital Multimedia Broadcasting) 기반 RFID(Radio Frequency IDentification) 응용 서비스 제공 시스템에 있어서, RFID 사용자를 위한 응용 서비스를 제공하고, RFID 태그 식별자(ID) 검색 요청을 받아 RFID 태그 식별자(ID)에 해당하는 주소(URL)를 찾기 위한 RFID 응용 서비스 관리수단; 및 상기 RFID 응용 서비스 관리수단으로부터 RFID 응용 서비스 식별자(ID)와 상기 RFID 응용 서비스 식별자(ID)와 일대일로 매핑되는 RFID 태그 정보를 수집하여 RFID 응용 메시지를 생성하고, 생성된 RFID 응용 메시지를 방송하기 위한 DMB 응용 서비스 관리수단을 포함함. 4. 발명의 중요한 용도 본 발명은 디지털 방송 시스템 등에 이용됨. DMB, RFID, 응용 서비스, 컨텐츠, ODS, 리턴채널, TPEG
Abstract:
본 발명은 지상파 DAB(Digital Audio Broadcasting)/DMB(Digital Multimedia Broadcasting) 콘텐츠를 제작하여 DMB 송신 시스템으로 송출하는 데이터 서비스 시스템에 있어서, 콘텐츠 스트림을 입력받는 버퍼, 콘텐츠 스트림에 대한 프로그램 정보를 입력받아 고속정보채널(FIC: Fast Information Channel) 데이터를 구성하는 고속정보채널 구성부, 고속정보채널 구성부로부터 수신한 고속정보채널(FIC) 데이터와 상기 버퍼에서 읽어들인 콘텐츠 스트림을 이용하여 앙상블 전송 인터페이스(ETI: Ensemble Transport Interface) 프레임을 제작하는 ETI 프레임 제작부를 포함한다. 본 발명에 따르면, 종래의 데이터 서비스가 지상파 DMB 송신 시스템이 지원해주는 인터페이스만을 이용해야 하므로 송신 시스템의 특성에 종속되어 개발될 수 밖에 없었던 것과는 달리, 컨텐츠 제공자가 이 시스템을 사용하여 표준 인터페이스인 ETI 프레임 신호로 출력해 주도록 함으로써 송신 시스템의 종류에 관계없이 데이터 서비스를 제공할 수 있는 효과가 있다.