Framework for content representation and delivery

• US 20070260647A1
• Filed: 05/02/2006
• Published: 11/08/2007
• Est. Priority Date: 05/02/2006
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: McGuire, Thomas, Sliger, Michael, Petrov, Alexander, Jaffri, Taqi
• Granted Patent: US 7,644,111 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: Y10S 707/99954 Version management

Abstract

In a content delivery scheme for target files, one or more recipes for each of the target files are encoded in an index. The index uses a framework that is able to represent content delivery schemes involving static containers, dynamic containers, self-contained containers, containers that are not self-contained, containers with internal delta dependency and containers with no internal delta dependency.

Claims

1. A method for delivery of target files, the method comprising:

encoding in an index one or more recipes for each of the target files using a framework that is able to represent content delivery schemes involving static containers, dynamic containers, self-contained containers, containers that are not self-contained, containers with internal delta dependency and containers with no internal delta dependency.

2. The method of claim 1, wherein encoding the one or more recipes in the index comprises:

encoding in the index a single recipe for each of the target files.

3. The method of claim 1, wherein encoding the one or more recipes in the index comprises:

encoding in the index two or more recipes for at least one of the target files.

4. The method of claim 1, wherein encoding the one or more recipes in the index comprises:

specifying at most one source file and one basis file in each recipe;

representing a target file that is produced by copying or decompressing a particular file with a recipe that specifies as its source file the particular file; and

representing a target file that is synthesized by applying a particular delta file to a particular basis file with a recipe that specifies as its source file the particular delta file and specifies as its basis file the particular basis file.

5. The method of claim 4, wherein encoding the one or more recipes in the index comprises:

representing internal delta dependency with a recipe of a particular target file that identifies its basis file as a different one of the target files.

6. The method of claim 4, wherein encoding the one or more recipes in the index comprises:

representing lack of self-containment by specifying in the index one or more search locations where basis files can be searched for.

7. The method of claim 4, wherein encoding the one or more recipes in the index comprises:

representing lack of self-containment by specifying in the index one or more search locations where source files and basis files can be searched for.

8. The method of claim 4, further comprising:

packaging the index and source files of the recipes in a container.

9. The method of claim 4, further comprising:

including in the index meta-data about one or more of the target files, the source files and the basis files.

10. A computer-readable medium having stored thereon a data structure, comprising:

an index describing one or more recipes for the production of target files,

wherein the index uses a framework that is able to represent content delivery schemes involving static containers, dynamic containers, self-contained containers, containers that are not self-contained, containers with internal delta dependency and containers with no internal delta dependency.

11. The computer-readable medium of claim 10, wherein the index includes a single recipe for each of the target files.

12. The computer-readable medium of claim 10, wherein the index includes two or more recipes for at least one of the target files.

13. The computer-readable medium of claim 10, wherein the index specifies at most one source file and one basis file in each recipe, a target file that is produced by copying or decompressing a particular file is represented with a recipe that specifies as its source file the particular file, a target file that is synthesized by applying a particular delta file to a particular basis file is represented with a recipe that specifies as its source file the particular delta file and specifies as its basis file the particular basis file.

14. The computer-readable medium of claim 13, wherein internal delta dependency is represented in the index with a recipe of a particular target file that identifies its basis file as a different one of the target files.

15. The computer-readable medium of claim 13, wherein lack of self-containment is represented in the index by one or more search locations where basis files can be searched for.

16. The computer-readable medium of claim 13, wherein lack of self-containment is represented in the index by one or more search locations where source files and basis files can be searched for.

17. The computer-readable medium of claim 13, wherein the data structure further comprises:

source files of the recipes.

18. The computer-readable medium of claim 13, wherein the index includes meta-data about one or more of the target files, the source files and the basis files.