公开(公告)号：EP1685666A1

公开(公告)日：2006-08-02

申请号：EP03781080.1

申请日：2003-12-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： LEE, Jin-Hwan ,  BAE, Byung-Jun ,  CHO, Sam-Mo ,  KIM, Geon ,  LEE, Yong-Hoon ,  HAHM, Young-Kwon ,  LEE, Soo-In

IPC: H04H1/00

CPC classification number: H04N19/40 ,  H04H20/57 ,  H04H20/95 ,  H04H60/07 ,  H04H2201/20 ,  H04N19/61 ,  H04N21/2335 ,  H04N21/234309 ,  H04N21/23608 ,  H04N21/2662

Abstract: Disclosed are a method for controlling a bit rate in a digital audio broadcasting (DAB) system, an apparatus and a method for converting a media stream by using the same. The media stream conversion method includes the steps of: determining a data amount of an inputted moving picture transmission stream and calculating a stream length (STL) value; calculating a data amount to be outer coded for every interval of DAB transmission frames based on the STL vale; outer coding a data with a multiple size of a packet unit for every interval of the DAB transmission frames as maintaining the data amount according to the STL value on average; and reading the outer coded moving picture transmission stream as much as the data amount according to the STL value for every interval of the DAB transmission frames to configure the DAB transmission frames and outputting the moving picture transmission stream.

公开(公告)号：EP1958442A1

公开(公告)日：2008-08-20

申请号：EP06824084.5

申请日：2006-12-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： LEE, Yong-Hoon ,  LEE, Jin-Hwan ,  LEE, Gwang-Soon ,  AHN, Chung-Hyun ,  LEE, Soo-In

IPC: H04N7/00 ,  H04N7/167

CPC classification number: H04H60/23 ,  H04H20/95 ,  H04H60/15 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/23476 ,  H04N21/235 ,  H04N21/2351 ,  H04N21/23608 ,  H04N21/2362 ,  H04N21/23895 ,  H04N21/23897 ,  H04N21/26606 ,  H04N21/26613 ,  H04N21/2665 ,  H04N21/435 ,  H04N21/6112 ,  H04N21/643

Abstract: Provided is an apparatus for coding a video, an audio and additional data according to a conditional access of terrestrial DMB. The apparatus includes an analyzing unit for analyzing input stream; a scrambling control unit for selecting a stream to be scrambled according to a selection signal; a transport stream de-multiplexing unit for de-multiplexing the input stream received from the analyzing unit, parsing an audio, a video and additional data classified by a packet identifier (PID), and outputting a stream to be scrambled, a stream not to be scrambled and the packet identifier (PID) for the stream to be scrambled according to selection of the scrambling control unit; a control word generating unit for generating a control word; a scrambling unit for scrambling the stream to be scrambled which is outputted from the transport stream de-multiplexing unit based on the control word generated in the control word generating unit; a conditional access data generating unit for receiving the control word from the control word generating unit and generating conditional access data; and a transport stream re-multiplexing unit for receiving and re-multiplexing the stream to be scrambled from the scrambling unit, the stream not to be scrambled from the transport stream de-multiplexing unit.

公开(公告)号：EP1668806A1

公开(公告)日：2006-06-14

申请号：EP03781079.3

申请日：2003-12-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： BAE, Byung-Jun ,  LEE, Jin-Hwan ,  CHO, Sam-Mo ,  KIM, Geon ,  LEE, Yong-Hoon ,  HAHM, Young-Kwon ,  LEE, Soo-In

IPC: H04H1/00

CPC classification number: H04H60/07 ,  H04H20/30 ,  H04H20/57 ,  H04H20/95 ,  H04H2201/20

Abstract: An apparatus and a method for inserting a multimedia stream into the DAB transport stream in order to provide a multimedia broadcasting service in the DAB transmission system is provided. The apparatus and method for inserting the multimedia stream inserts and transmits the multimedia stream, e.g., MPEG-2 stream into DAB transport stream, to thereby provide a multimedia broadcasting service without changing an organization of the conventional DAB transmission system.

公开(公告)号：EP2095639A1

公开(公告)日：2009-09-02

申请号：EP07833481.0

申请日：2007-10-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： LEE, Jinhwan ,  LEE, Yong-Hoon ,  AHN, Chung-Hyun ,  LEE, Soo-In

IPC: H04N7/167

CPC classification number: H04N7/1675 ,  H04H60/15 ,  H04H60/19 ,  H04H60/23 ,  H04H2201/11 ,  H04H2201/20 ,  H04N7/165 ,  H04N21/2408 ,  H04N21/25891 ,  H04N21/26606 ,  H04N21/4623 ,  H04N21/6112

Abstract: Provided are transmission and reception apparatuses and methods used in a conditional access system that limitedly allows access to a terrestrial digital multimedia broadcasting (T-DMB) service. The transmission apparatus selects a single service component from a transmission frame which includes a main service channel (MSC) including sub-channels including one or more service components and a fast information channel (FIC) which transmits control information regarding the main service channel to insert an entitlement management message (EMM) that is used to grant or update the entitlement on the DMB service to the selected single service component, and provides location information regarding the selected single service component to the fast information channel.