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Apparatus and method for detecting captions rolling

A technology for detecting subtitles and subtitles. It is used in digital recording/reproduction, color TV components, and TV system components. It can solve the problem of jagged subtitle data, inconsistent with the use requirements of high-quality products, and subtitles that are large and small, etc. question

Active Publication Date: 2007-07-04
VIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when the subtitle data shows subtitle scrolling and subtitle enlargement / reduction effects at the same time, because the display device displays the subtitle enlargement / reduction effect, the block data at a fixed position will be removed. If the subtitle scrolling effect is combined, the audio-visual playback device may read The start address of the block data is extracted, so that the subtitle data displayed on the display screen becomes a situation where the subtitle data is large and small, causing the subtitle data to appear jagged. This is not in line with the needs of modern users for high-quality products.

Method used

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  • Apparatus and method for detecting captions rolling
  • Apparatus and method for detecting captions rolling
  • Apparatus and method for detecting captions rolling

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Embodiment Construction

[0044] An embodiment of the device for detecting subtitle scrolling of the present invention is shown in FIG. 1 , in which a receiving unit 16 is included to receive a subtitle size data, a first subtitle data and a second subtitle data; and A detection module 18 detects the first subtitle data and the second subtitle data according to the subtitle size data received by the receiving unit 16, and obtains a difference value to determine a subtitle scroll information of the second subtitle data.

[0045] As shown in FIG. 1, in this embodiment, a storage unit 10 is further included to provide a subtitle data string, and then a subtitle decoding unit 12 decodes the subtitle data string to generate subtitle size data, first subtitle data and the second subtitle data, and respectively output the subtitle size data in the receiving unit 16, and output the first subtitle data and the second subtitle data to a subtitle image buffer 14 to temporarily store the first subtitle data and the...

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Abstract

The invention consists of: a reception unit for receiving a data of subtitle size, a first subtitle data and a second subtitle data; a detecting module for detecting the first subtitle data and the second subtitle data to get a difference for deciding a subtitle scrolling message of second subtitle data. Thereby, when the subtitle data executes the subtitle scrolling specificity and zoom out or in the subtitle at same time, the viewer can't see jagged edge of the subtitle.

Description

technical field [0001] The present invention relates to a device and method for detecting subtitle scrolling, in particular to detecting a first subtitle data and a second subtitle data, so as to obtain a subtitle scrolling information of the second subtitle data . Background technique [0002] Based on the continuous improvement of research and development technology and living standards, product quality has gradually become an important factor for people to consider purchasing this product. In order to meet this demand, providing high-quality information technology products is actually the most important issue in the development of products. The information technology products purchased are nothing more than multimedia playback devices, among which the playback of audio-visual data is the most popular among people. Therefore, most enterprises today focus on the research and development of how to match video effects when playing audio-visual data. [0003] Common image spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/278H04N5/91G11B20/10
Inventor 王俊翔
Owner VIA TECH INC
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