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Method and apparatus for addressable play of rolling/static title in digital television

A technology of rolling subtitles and digital TV systems, which is applied to color TV parts, TV system parts, TVs, etc., and can solve the problem that rolling subtitles are not suitable for digital TV to transmit flexible and diverse digital information.

Inactive Publication Date: 2008-09-24
LG ELECTRONICS (CHINA) R&D CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Based on the above deficiencies, it can be seen that this traditional rolling subtitle generation method is not suitable for the current characteristics of digital TV that can transmit flexible and diverse digital information.

Method used

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  • Method and apparatus for addressable play of rolling/static title in digital television
  • Method and apparatus for addressable play of rolling/static title in digital television

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Embodiment Construction

[0029] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0030] The present invention is mainly a method for realizing scrolling subtitles appearing at the bottom of a TV screen through transmission of special data in a digital television system, and includes a method for realizing subtitle display at a user end.

[0031] The basic idea of ​​the present invention is to design a method suitable for realizing rolling subtitles in digital TV by utilizing the characteristic that digital TV can receive data in a specified format.

[0032] The present invention utilizes digital TV data transmission mechanism and digital TV OSD (screen display) technology. Here, we describe the data transmission mechanism and digital TV OSD technology.

[0033] The data transmission mechanism is: DVB defines a series of methods for packaging data into MPEG-2 transport streams. For example, the Multiprotocol encapsulation method is...

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Abstract

A method and device for realizing addressable playing roll / static caption in digital television, which contains generating caption information containing roll / static caption content and relative control display information and sending-mixing said information transmission stream, receiving said caption information, comparing the relative control information in caption with that in receiver, if they are same then displaying roll / static caption content according to relative control information. Said invention not only transmits basic video-audio but also a lot of information.

Description

technical field [0001] The invention relates to a digital television system, in particular to a method for addressable broadcasting of scrolling / still subtitles that conforms to digital television specifications and can fully utilize the characteristics of digital television. Background technique [0002] In current TV programs, the rolling subtitle information appearing at the bottom of the screen is already a very common way of information transmission. It not only has the characteristics of timely and fast, but also can minimize the interference to users watching the main audio and video programs. [0003] The scrolling subtitles at the bottom of the screen that are common in today's analog TVs are produced by superimposing the subtitles produced by the subtitle machine on the original video programs. The current method to produce the same effect in digital TV is to add the rolling subtitle information to the video coding, and then send the signal through the multiplexer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/278
Inventor 洪亮
Owner LG ELECTRONICS (CHINA) R&D CENT CO LTD