Information storage medium storing graphic data and apparatus and method of processing the graphic data

• US 7,873,242 B2
• Filed: 07/28/2008
• Issued: 01/18/2011
• Est. Priority Date: 07/31/2003
• Status: Expired

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jung, Kil-soo, Moon, Seong-jin
• Primary Examiner(s): Dang; Duy M
• Application Number:
  US12/180,662
• Publication Number:
  US 20080278477A1
• Time in Patent Office: 904 Days
• Field of Search: 382/180, 382/232, 382/233, 382/236, 382/305, 709/231, 360/1, 386/69, 386/95, 386/96, 386/124, 386/125, 715/803, 345/418, 345/501, 345/530, 345/536
• US Class Current: 382/305
• CPC Class Codes: G11B 27/10 Indexing; Addressing; Timing or synchronising; Measuring tape travel
• CPC Class Codes: H04N 21/23412 for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/43074 of additional data with content streams on the same device, e.g. of EPG data or interactive icon with a TV program
• CPC Class Codes: H04N 21/4331 Caching operations, e.g. of an advertisement for later insertion during playback
• CPC Class Codes: H04N 21/434 Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream demultiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/4348 Demultiplexing of additional data and video streams
• CPC Class Codes: H04N 21/44012 involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs
• CPC Class Codes: H04N 21/4884 for displaying subtitles
• CPC Class Codes: H04N 21/8133 specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/91 Television signal processing therefor
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal

Abstract

An information storage medium including graphic data and presentation information, and an apparatus and method of processing the graphic data are provided. The information storage medium includes the graphic data, page composition information which defines page composition of the graphic data, and the presentation information indicating when graphic screen data, which is composed with reference to the page composition information of the graphic data, is output to a display screen. Therefore, a graphic object is reusable in graphic data processing, and accordingly, a time taken to process the graphic data is reducible and memory area may be saved.

Claims

1. A method for processing graphic data using a graphic data processing apparatus, the method comprising:

reading data from an information storage medium, the data comprising a display set comprising an object segment and a composition segment, the object segment comprising graphic object data defining a graphic object to be used in composing a graphic screen to be displayed on a display device, the object segment further comprising time information indicating a time when the graphic object data is to be stored, the composition segment comprising composition information for the graphic object defined by the graphic object data to be used in composing the graphic screen, the composition information specifying how the graphic object is to be displayed on the graphic screen;

storing, using the graphic data processing apparatus, the graphic object data at the time indicated by the time information of the object segment, the graphic object data being stored for a predetermined time so that the graphic object data remains available for use for the predetermined time;

storing, using the graphic data processing apparatus, the composition information; and

outputting, using the graphic data processing apparatus, the graphic object data according to the composition information;

wherein the composition information comprises time information indicating an output time when the stored graphic object data is to be output to the display device.

2. The method of claim 1, wherein the graphic object data is identified by an object identifier.