Retrieving Content Items For A Playlist Based On Universal Content Id

• US 20080162435A1
• Filed: 02/20/2006
• Published: 07/03/2008
• Est. Priority Date: 02/22/2005
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Van Agt, Jeroen Franciscus Hubertus, Van Gompel, Bernardus Petrus Hendricus Catharina, Dooms, Jacobus
• Application Number:
  US11/816,855
• Publication Number:
  US 20080162435A1
• Time in Patent Office: Days
• US Class Current: 707/3
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]

Abstract

Playlist retrieval based on a universal identification is provided. A selected entry on a playlist is identified (S2). A universal unique media identification for the entry is extracted (S3) and based on the universal identification, a medium storing the selected content item is located (S5) and content data corresponding to the selected entry of the playlist is retrieved (S7) via a network, for example, from a remote server, and stored (S8) or output (S9). The universal identification can be generated using a hash algorithm from the content data, and a hash table can be used to identify the content data based on the universal identification by the remote server.

Claims

1. A playlist content retrieval method, comprising:

identifying (S2) a selected entry on a playlist;

extracting (S3), a universal identification for the entry, the universal identification uniquely identifying content data associated with the entry;

retrieving (S7), based on the universal identification, the content data from a medium storage server; and

outputting (S8) the content data.

2. The method of claim 1, wherein the medium storage server identifies the content data based on the universal identification by a hashing algorithm.

3. The method of claim 1, wherein the medium storage server identifies the content data based on the universal identification by reference to a hashing table.

4. The method of claim 1, wherein the universal identification is obtained by applying a hashing function to the content data.

5. The method of claim 1, wherein the outputting is performed by at least one of storing (S9) the content data on a local storage and streaming (S9) the content data to a local output device.

6. The method of claim 1, wherein the content data is retrieved from the medium storage server via a network.

7. The method of claim 1, wherein the content data comprises audio data.

8. The method of claim 1, comprising locating (S4) the medium storage server based on the universal identification.

9. The method of claim 1, wherein metadata retrieved based on the universal ID is provided to the medium storage server for retrieving the content data.

10. A playlist content retrieval system, comprising:

a playlist processor (1-11) configured to identify a selected entry on a playlist;

an entry information extractor (1-12) configured to extract a universal identification for the entry, the universal identification uniquely identifying content data associated with the entry;

a server interface (1-15) configured to retrieve, based on the universal identification, the content data; and

an output (1-16) configured to output the content item.

11. The server of claim 10, wherein a medium storage server identifies the content data based on the universal identification by a hashing algorithm.

12. The server of claim 10, wherein a medium storage server identifies the content data based on the universal identification by reference to a hashing table.

13. The system of claim 10, wherein said output stores the content data associated with the entry on a local storage 1-2.

14. The system of claim 10, wherein said output streams the content data to a local output device 1-3.

15. The system of claim 10, wherein the content data is retrieved from a medium storage server (1-61) via a network (1-4).

16. The system of claim 10, wherein the content data comprises audio data.

17. The system of claim 10, wherein the media target associator locates the medium storage server based on the universal identification.

18. The system of claim 10, comprising a media target associator (1-14) configured to locate a medium storage server (1-61) storing the content data.