Techniques for generating and using playlist identifiers for media objects

• US 7,562,301 B1
• Filed: 02/04/2005
• Issued: 07/14/2009
• Est. Priority Date: 02/04/2005
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Graham, Jamey, Wolff, Gregory J.
• Primary Examiner(s): Luu; Sy D
• Assistant Examiner(s): Pham; Linh K
• Application Number:
  US11/051,157
• Time in Patent Office: 1,621 Days
• Field of Search: 715/500.1, 715/716, 715/768, 715/727, 715/733, 715/736, 715/738, 715/745, 715/748, 715/783, 715/789, 715/805, 707/10, 707/102, 386/124, 370/383
• US Class Current: 715/727
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00181 using a content identifier, e.g. an international standard recording code [ISRC] or a digital object identifier [DOI]
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00731 involving a digital rights management system for enforcing a usage restriction
• CPC Class Codes: G11B 20/00869 wherein the remote server can deliver the content to a receiving device
• CPC Class Codes: G11B 20/00876 wherein physical copy protection means are attached to the medium, e.g. holograms, sensors, or additional semiconductor circuitry
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection
• CPC Class Codes: Y10S 707/99943 Generating database or data structure, e.g. via user interface

Abstract

Techniques for creating a playlist for media objects are provided. The techniques include receiving a selection of a set of IDs. Each ID is generated based on content of a media objects. A playlist ID is then generated based on the set of IDs and a fixed representation of the playlist ID is created. The fixed representation allows a device to use the playlist ID to determine media objects including the content of media objects used to generate the set of IDs.

Claims

1. A method for creating a playlist for media objects, the method comprising:

for a set of media objects each including recorded information, determining a universal identifier (ID) for each media object, the universal ID for each media object being generated by applying an algorithm to at least a portion of the recorded information of the media object, each universal ID being dependent upon the algorithm and at least a portion of the recorded information and independent of information associated with the media object or a provider of the media object, the universal ID for each instance of one of the media objects being identical when generated using the algorithm;

receiving a selection of a set of the universal IDs;

generating a playlist ID based on the set of universal IDs; and

creating a fixed representation of the playlist ID, the fixed representation allowing a device to use the playlist ID to determine media objects including recorded information corresponding to the recorded information of one of the media objects used to generate the set of universal IDs,

wherein the device is operable to analyze the recorded information for each media object available to the device using the algorithm to determine whether the media object corresponds to the set of universal IDs, independent of whether the media object already has a universal ID or other identifier, and

wherein the algorithm is one of a hash algorithm and a fingerprint algorithm for generating a universal ID using at least a portion of the recorded information for one of the media objects.

2. The method of claim 1, wherein the media objects are provided by one or more content providers, wherein different content providers use different source information or digital rights management for media objects.

3. The method of claim 1, wherein the playlist ID comprises a pointer to a list of the set of universal IDs.

4. The method of claim 1, wherein information from the playlist ID is used to determine the set of universal IDs.

5. The method of claim 1, further comprising:

reading the fixed representation of the playlist ID;

determining the set of universal IDs using the playlist ID; and

determining media objects using the set of universal IDs.

6. The method of claim 5, further comprising determining if any of the media objects are locally accessible to a reader that read the fixed representation.

7. The method of claim 6, further comprising if any of the media objects are locally accessible, outputting those media objects locally accessible.

8. The method of claim 6, further comprising if any of the media objects are not locally accessible, generating a request for those media objects that are not locally accessible.

9. The method of claim 8, further comprising sending the request to a service to retrieve the media objects that are not locally accessible.

10. The method of claim 9, further comprising:

receiving the media objects that are not locally accessible; and

outputting the received media objects.

11. The method of claim 1, wherein the device using the playlist ID to determine media objects is different than a second device used to create the playlist ID.

12. The method of claim 1, wherein receiving the set of universal IDs comprises scanning universal IDs in the set of universal IDs.

13. The method of claim 1, wherein the fixed representation comprises a bar code or an RFID.

14. The method of claim 1, wherein a universal ID in the set of universal IDs is generated based on a portion of the recorded information of the first media object, wherein the universal ID and an indication of the portion of the recorded information that was used to generate the ID allows a device to determine if the portion of the recorded information is accessible to a device.

15. A method for creating a playlist ID, the method comprising:

for a set of media objects each including recorded information, determining a universal identifier (ID) for each media object, the universal ID for each media object being generated by applying an algorithm to at least a portion of the recorded information of the media object, each universal ID being dependent upon the algorithm and at least a portion of the recorded information and independent of information associated with the media object or a provider of the media object, the universal ID for each instance of one of the media objects being identical when generated using the algorithm;

receiving a selection of a set of the universal IDs;

generating a playlist ID and associating the set of universal IDs with the playlist ID; and

creating a fixed representation of the playlist ID, the fixed representation allowing a device to use the playlist ID to determine media objects including recorded information corresponding to the recorded information of one of the media objects used to generate the set of universal IDs associated with the playlist ID,

wherein the device is operable to analyze the recorded information for each media object available to the device using the algorithm to determine whether the media object corresponds to the set of universal IDs, independent of whether the media object already has a universal ID or other identifier.

16. The method of claim 15, further comprising

receiving a selection of one or more additional universal IDs;

and

associating the one or more additional universal IDs with the playlist ID, wherein the fixed representation of the playlist ID allows the device to use the playlist ID to determine media objects including the content of media objects used to generate the one or more additional universal IDs associated with the playlist ID.

17. The method of claim 15, wherein the fixed representation of the playlist ID is generated before the set of universal IDs is associated with the playlist ID.

18. A device for creating a playlist for media objects, the device comprising:

a processor; and

memory including instructions that, when executed by the processor, cause the processor to;

determine a universal identifier (ID) for each media object in a set of media objects each including recorded information, the universal ID for each media object being generated by applying an algorithm to at least a portion of the recorded information of the media object, each universal ID being dependent upon the algorithm and at least a portion of the recorded information and independent of information associated with the media object or a provider of the media object, the universal ID for each instance of one of the media objects being identical when generated using the algorithm;

receive a selection of a set of the universal IDs;

generate a playlist ID based on the set of universal IDs; and

create a fixed representation of the playlist ID, the fixed representation allowing a device to use the playlist ID to determine media objects including recorded information of media objects used to generate the set of universal IDs,

wherein the device is operable to analyze the recorded information for each media object available to the device using the algorithm to determine whether the media object corresponds to the set of universal IDs, independent of whether the media object already has a universal ID or other identifier.

19. The device of claim 18, wherein the media objects are provided by one or more content providers, wherein different content providers use different source information or digital rights management for media objects.