Methods and apparatuses for managing reproduction of text subtitle data

• US 20070160342A1
• Filed: 02/15/2007
• Published: 07/12/2007
• Est. Priority Date: 05/03/2004
• Status: Active Grant

• Current Assignee: Byung Kim, Jea Yoo, Kang Seo
• Original Assignee: Byung Kim, Jea Yoo, Kang Seo
• Inventors: Kim, Byung, Yoo, Jea, Seo, Kang
• Granted Patent: US 8,429,532 B2
• Time in Patent Office: Days
• US Class Current: 386/291
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/3027 used signal is digitally coded

Abstract

In one embodiment, the method includes, receiving at least one text subtitle stream from an external source. Each text subtitle stream includes a style segment and at least one presentation segment associated with the style segment. The style segment includes at least one set of style information, and each set of style information provides region positioning information for positioning a region in an image and a text box including information for positioning a text box in the region. The presentation segment includes at least one region subtitle information, and the region subtitle information includes text subtitle data and a region style identifier. The region style identifier identifies one of the sets of style information in the style segment to apply to the text subtitle data. The text subtitle stream is decoded using style information including region positioning information and text box positioning information.

Claims

1. A method of reproducing text subtitle streams, the method comprising:

receiving at least one text subtitle stream from an external source each text subtitle stream including a style segment and at least one presentation segment associated with the style segment,

the style segment including at least one set of style information, each set of style information providing region positioning information for positioning a region in an image and text box including information for positioning a text box in the region, and

the presentation segment including at least one region subtitle information, the region subtitle information including text subtitle data and a region style identifier, the region style identifier identifying one of the sets of style information in the style segment to apply to the text subtitle data.

decoding the text subtitle stream using style information including region positioning information and text box positioning information.

2. The method of claim 1, wherein the region positioning information includes a horizontal position and a vertical position of the upper left corner of the region in the image.

3. The method of claim 2, wherein the region positioning information provides a horizontal position and a vertical position of the upper left corner of the region in the image;

each set of style information further includes region size information indicating a height of the region and a width of the region; and

each set of style information further includes an indicator of a background color for the region.

4. The method of claim 1, wherein the text box positioning information includes a position of an upper left corner of the text box in the region

5. The method of claim 4, wherein the the text box positioning information provides a horizontal position and a vertical position of the upper left corner of the text box in the region;

and

each set of style information further includes text box size information indicating a height of the text box and a width of the text box, text flow information indicating a character progression of text subtitle data to employ in the text box, text alignment information indicating how to align text subtitle data in the text box, line space information indicating a spacing to employ between lines of text subtitle data in the text box, a font identifier identifying a font file recorded on the recording medium to use in reproducing text subtitle data in the text box, a font style indicator indicating a font style to apply to text subtitle data in the text box, font size information indicating a font size to apply to text subtitle data in the text box, and font color information indicating a color to apply to text subtitle data in the text box.

6. The method of claim 1, wherein each set of style information includes user changeable information, the user changeable information indicating a horizontal direction that a user may move the region, a vertical direction the user may move the region, whether the user may one of increase and decrease the font size, a horizontal direction the user may move the text box, a vertical direction the user may move the text box, whether the user may one of increase and decrease the height of the text box, whether the user may one of increase and decrease the width of the text box, and whether the user may one of increase and decrease the spacing to employ between lines of text subtitle data in the text box.

7. A method of recording text subtitle streams, the method comprising:

receiving at least one text subtitle stream from an external source each text subtitle stream including a style segment and at least one presentation segment associated with the style segment,

the style segment including at least one set of style information, each set of style information providing region positioning information for positioning a region in an image and text box including information for positioning a text box in the region, and

the presentation segment including at least one region subtitle information, the region subtitle information including text subtitle data and a region style identifier, the region style identifier identifying one of the sets of style information in the style segment to apply to the text subtitle data.

recording the received text subtitle streams in a recording medium.

8. A method of reproducing text subtitle streams, the method comprising:

selecting at least one text subtitle stream from an external source or a recording medium, each text subtitle stream including a style segment and at least one presentation segment associated with the style segment,

the style segment including at least one set of style information, each set of style information providing region positioning information for positioning a region in an image and text box including information for positioning a text box in the region, and

the presentation segment including at least one region subtitle information, the region subtitle information including text subtitle data and a region style identifier, the region style identifier identifying one of the sets of style information in the style segment to apply to the text subtitle data.

decoding the text subtitle stream using style information including region positioning information and text box positioning information.

9. An apparatus for reproducing a text subtitle stream, the apparatus comprising:

a decoder configured to decode the text subtitle stream from the external source, the text subtitle including a style segment and at least one presentation segment associated with the style segment,

the style segment including at least one set of style information, each set of style information providing region positioning information for positioning a region in an image and text box including information for positioning a text box in the region, and

the presentation segment including at least one region subtitle information, the region subtitle information including text subtitle data and a region style identifier, the region style identifier identifying one of the sets of style information in the style segment to apply to the text subtitle data

a controller configured to control operation of the decoder to receive the text subtitle stream from a receiver and decode the text subtitle stream using the region positioning information and the text box positioning information.