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Device and method for supply digital broadcasting programme specific information to audience

A program-specific information and broadcast program technology, applied in the field of digital TV systems, can solve the problems that users cannot know in advance, and there are no suggestions for reflecting changes or additions of additional functions of programs and notifying them in advance.

Inactive Publication Date: 2003-07-09
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Moreover, even if there are changes or additions to specific program additions by PSI services, there is never a suggestion to reflect changes or additions to program additions and to notify in advance
Therefore, since the user cannot know the additional functions currently supported by the program in advance, it is inconvenient to check the additional functions currently supported by the program one by one.

Method used

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  • Device and method for supply digital broadcasting programme specific information to audience
  • Device and method for supply digital broadcasting programme specific information to audience
  • Device and method for supply digital broadcasting programme specific information to audience

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Embodiment Construction

[0035] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0036] FIG. 1 illustrates a diagram showing a program map section syntax of a PMT (Program Map Table) in a digital broadcasting transport stream. In more detail, FIG. 1 illustrates the segment syntax of the PMT described in ISO / IEC 13818-1, which specifies the rules for digital television file transmission. FIG. 2 illustrates a descriptor table based on the ATSC (Advanced Television Systems Committee) PSIP table.

[0037] A digital broadcast program is equivalent to a virtual channel. Therefore, the syntax of the PMT in FIG. 1 illustrates the specification of a virtual channel of a digital broadcast program.

[0038] The second "for" loop in the PMT syntax in Figure 1 defines an Elementary Stream (ES) (ie, a transport stream for a program) on a virtual channel. The structure of the elementary stream will be given with r...

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Abstract

Device and method for real time monitoring, and providing of useful progr am specific information (PSI) of a program received from a digital TV broadcasting system to a watcher, wherein, when broadcasting program PSI is changed, the change of th e PSI is detected by monitoring a PMT in a PSIP, and facts of the change or addition of additional functions for a program following the change or addition of the PSI of the digital broadcasting program is reflected and informed to a watcher.

Description

[0001] This application claims preferential treatment of Korean Application No. P2001-68357 filed Sep. 3, 2001, which is hereby incorporated by reference. technical field [0002] The present invention relates to a digital TV system, and more particularly to a device and method for real-time monitoring and providing viewers with useful Program Specific Information (PSI) of programs received from a digital TV broadcasting system. Background technique [0003] In general, digital TV systems are capable of transmitting broadcast signals for broadcasting programs in audio and video representation, together with PSI. The PSI provides viewers with guide information on programs in order to provide various services to viewers. [0004] PSI is provided by using PSIP (Program and System Information Protocol) with multiple tables containing PSI. The tables in PSIP are Program Mapping Table which contains program schedule information, EIT (Time Information Table) which contains various...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04H20/00H04N5/00H04N5/445H04N7/24
CPCH04N21/434H04N21/4345H04N5/602H04N21/482H04N21/478H04N21/4586H04N21/435H04N21/2668H04N21/4884H04N21/235H04N5/445
Inventor 金镇必
Owner LG ELECTRONICS INC
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