Abstract:
1. 청구범위에 기재된 발명이 속한 기술분야 본 발명은 데이터 방송 수신장치 및 그의 순방향 호환성 지원 방법과, 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체에 관한 것임. 2. 발명이 해결하려고 하는 기술적 과제 본 발명은, 데이터 방송 서비스에서 생길 수 있는 다양한 서비스 형태에 맞춰 언제든지 수신장치의 소프트웨어를 업그레이드할 수 있는 디지털 방송 수신장치 및 그의 순방향 호환성 지원 방법과, 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체를 제공하고자 함. 3. 발명의 해결방법의 요지 본 발명은, 데이터 방송 수신장치에 적용되는 순방향 호환성 지원 방법에 있어서, 다운로드 데이터를 판별하기 위해, 순방향 호환 처리부가 수신 방송스트림내의 다운로드 데이터 정보기술자 존재 유무를 감시하는 단계; 상기 순방향 호환 처리부가 상기 다운로드 데이터 정보기술자로부터 데이터 형식에 대한 식별정보를 확인하여, 다운로드 데이터의 종류 및 상태에 따라 다운로드 여부를 결정하는 단계; 및 상기 순방향 호환 처리부가 다운로드 결정된 업그레이드용 소프트웨어를 다운로드하여 다운로드한 소프트웨어의 종류에 따라 업그레이드하는 업그레이드 단계를 포함함. 4. 발명의 중요한 용도 본 발명은 데이터 방송 서비스 등에 이용됨.
Abstract:
PURPOSE: An apparatus and method for protecting constituent elements of a digital broadcasting program using an MPEG-4 system are provided to control illegal access to various contents to be provided in a digital broadcasting environment. CONSTITUTION: An apparatus for protecting constituent elements of a digital broadcasting program includes a transport stream analyzer(100), a data generator(300), a multiplexer(500), and a controller(400). The transport stream analyzer analyzes a transport stream including the constituent elements to extract a corresponding program map table. The data generator generates an intellectual property management and protection descriptor for protecting the program constituent elements, an object descriptor for connecting the IPMP descriptor with a specific interval of the program constituent elements, and a new program map table that is connectable with the object descriptor. The multiplexer multiplexes a transport stream including a corrected program map table, the IPMP descriptor and object descriptor generated by the data generator. The controller controls the transport stream analyzer, data generator and multiplexer.
Abstract:
PURPOSE: An apparatus and method for activating a specific region of MPEG-2 video using MPEG-4 scene descriptor are provided to allow a user to easily access interactive digital broadcasting and increase utilization of additional data. CONSTITUTION: An apparatus for activating a specific region of MPEG-2 video using MPEG-4 scene descriptor includes a specific region setting and updating unit(100) for setting a specific region of interactive digital broadcasting MPEG-2 video and updating information about the specific region that varies with time, and a scene descriptor generating and encoding unit(200) for generating a scene descriptor based on the information about the specific region and encoding the scene descriptor. The apparatus further includes a capsulating unit(300) for capsulating the scene descriptor and additional data to be connected to the scene descriptor in MPEG-2 packet, and a multiplexing unit(400) for inserting the capsulated scene descriptor and additional data into the MPEG-2 video data including the specific region.
Abstract:
Disclosed is a program recommendation system and method which receive PSIP/SI and programming information on digital broadcasting and provide a program recommendation service to viewers in an EPG application. The system receives personal information in order to set information of each viewer, confirms the received PSIP/SI information, and generates watching information through a viewer watching TV, in a predetermined format. In addition, the system inputs the generated watching information to a database, converts watching information of each viewer which is stored in the database input unit into divided input patterns using a fuzzy membership function to analyze the input patterns, and extracts information on a program with a high degree of preference from the analyzed result. Furthermore the system outputs preference program information of each viewer on a screen in order to recommend a program.
Abstract:
PURPOSE: An apparatus and method for protecting constituent elements of a digital broadcasting program using an MPEG-4 system are provided to control illegal access to various contents to be provided in a digital broadcasting environment. CONSTITUTION: An apparatus for protecting constituent elements of a digital broadcasting program includes a transport stream analyzer(100), a data generator(300), a multiplexer(500), and a controller(400). The transport stream analyzer analyzes a transport stream including the constituent elements to extract a corresponding program map table. The data generator generates an intellectual property management and protection descriptor for protecting the program constituent elements, an object descriptor for connecting the IPMP descriptor with a specific interval of the program constituent elements, and a new program map table that is connectable with the object descriptor. The multiplexer multiplexes a transport stream including a corrected program map table, the IPMP descriptor and object descriptor generated by the data generator. The controller controls the transport stream analyzer, data generator and multiplexer.
Abstract:
PURPOSE: An apparatus and a method for recommending a program using a rough fuzzy MLP(Multi Layer Perceptron) in an electronic program guide(EPG) application are provided to input viewing tendency of viewers for providing a program recommending service. CONSTITUTION: A personal information setting unit(11) receives personal information of each viewer, and extracts the information of the viewers. A PSIP(Program and System Interrupt)/SI(System Information) confirming and viewing information generating unit(12) confirms PSIP/SI received from the outside, and generates viewing information of the viewers in a certain format if the viewer watches a TV. A database input unit(13) stores the viewing information in a storage unit. A preference information processor(14) converts the viewing information of each viewer stored in the database input unit into input patterns detailed by a fuzzy membership function, and extracts preferred program information having high viewing preference. A picture output unit(15) outputs preferred program information of each viewer.
Abstract:
PURPOSE: An apparatus and method for activating a specific region of MPEG-2 video using MPEG-4 scene descriptor are provided to allow a user to easily access interactive digital broadcasting and increase utilization of additional data. CONSTITUTION: An apparatus for activating a specific region of MPEG-2 video using MPEG-4 scene descriptor includes a specific region setting and updating unit(100) for setting a specific region of interactive digital broadcasting MPEG-2 video and updating information about the specific region that varies with time, and a scene descriptor generating and encoding unit(200) for generating a scene descriptor based on the information about the specific region and encoding the scene descriptor. The apparatus further includes a capsulating unit(300) for capsulating the scene descriptor and additional data to be connected to the scene descriptor in MPEG-2 packet, and a multiplexing unit(400) for inserting the capsulated scene descriptor and additional data into the MPEG-2 video data including the specific region.
Abstract:
PURPOSE: A data broadcast receiver and a method for supporting forward compatibility of the receiver are provided to upgrade software of the receiver according to various service formats at any time. CONSTITUTION: A data broadcast receiver includes an RF tuner/demultiplexer(12) for receiving, tuning and demodulating a ground wave radio frequency signal and dividing each bit stream into audio data, video data, contents and download data, a memory(14) for storing the audio data, video data, contents and download data, a processor(11) for controlling modules of the receiver and processing the contents, and an MPEG-2 A/V decoder(13) for decoding the audio data and video data. The data broadcast receiver further includes an audio output unit(17) for outputting the decoded audio data, a video output unit(16) for synthesizing the decoded video data and the contents processed by the processor, a graphic processor(15) for graphic-processing the data stored in the memory, a forward compatibility processor(19) for judging a software module to be upgraded using the download data and upgrading the software module, and a peripheral device(18).