Method of linking metadata to a data stream

• US 20050005289A1
• Filed: 06/29/2004
• Published: 01/06/2005
• Est. Priority Date: 07/01/2003
• Status: Abandoned Application

• Current Assignee: Thomson Licensing SA (Vantiva SA)
• Original Assignee: Thomson Licensing SA (Vantiva SA)
• Inventors: Li, Hui, Horentrup, Jobst, Janssen, Uwe, Adolph, Dirk, Schiller, Harald
• Application Number:
  US10/880,256
• Publication Number:
  US 20050005289A1
• Time in Patent Office: Days
• US Class Current: 725/32
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: H04N 5/85 on discs or drums
• 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

The invention relates to a method of linking metadata to a data stream, the data stream having time-based navigation data and play list data, the play list data being indicative of play items of one or more play lists, the time-based navigation data mapping play items to the data stream, the method including the steps of: using the time-based navigation data for mapping of metadata to the play items, storing a metadata link being descriptive of the mapping of the metadata to the play items.

Claims

1. Method of linking metadata to a data stream, the data stream having time-based navigation data and play list data, the play list data being indicative of play items of one or more play lists, the time-based navigation data mapping play items to the data stream, the method including the steps of:

using the time-based navigation data for mapping metadata to the play items,

storing a metadata link being descriptive of the mapping of the metadata to the play items.

2. Method according to claim 1, wherein the time-based navigation data is system time clock navigation data.

3. Method according to claim 1, wherein the metadata link is stored as an XML file.

4. Method according to claim 1, wherein the metadata link specifies a metadata range by means of portions of system time clock sequences of the time-based navigation data.

5. Computer program product, in particular digital storage medium, for linking metadata to a data stream, the data stream having time-based navigation data and play list data, the play list data being indicative of play items of one or more play lists, the time-based navigation data mapping play items to the data stream, said product including program means for performing the steps of:

using the time-based navigation data for mapping metadata to the play items;

storing a metadata link being descriptive of the mapping of the metadata to the play items.

6. Data carrier, such as CD, DVD, or Blue-ray disc, including a data structure for storing a data stream and for linking metadata to that data stream, the data stream having time-based navigation data and play list data, the play list data being indicative of play items of one or more play lists, the time-based navigation data mapping play items to the data stream, and a metadata link being descriptive of a mapping of the metadata to the play item using the time-based navigation data as a reference.

7. Carrier wave, such as a digital video broadcast carrier wave, carrying a data stream and meta data, the data stream having time-based navigation data and play list data, the play list data being indicative of play items of one or more play lists, the time-based navigation data mapping play items to the data stream, and a metadata link being descriptive of the mapping of the meta data to the play items using the time-based navigation data as a reference.

8. Apparatus for linking metadata to a data stream, the data stream having time-based navigation data and play list data, the play list data being indicative of play items of one or more play lists, the time-based navigation data mapping play items to the data stream, the apparatus including:

means for mapping the metadata to the play items, whereby the time-based navigation data is used as a reference for the mapping;

means for generating a metadata link file being descriptive of the mapping of the metadata to the play items.

9. Apparatus according to claim 8, whereby the metadata link is an XML file.