Storage of content data in a peer-to-peer network

• US 8,880,698 B2
• Filed: 10/14/2005
• Issued: 11/04/2014
• Est. Priority Date: 10/18/2004
• Status: Expired due to Fees

• Current Assignee: Sony United Kingdom Limited (Sony Group Corp.)
• Original Assignee: Sony United Kingdom Limited (Sony Group Corp.)
• Inventors: Foster, Richard, Delacour, Isabel, Gugenheim, Paul Maurice Otto
• Primary Examiner(s): Feild, Lynn
• Assistant Examiner(s): BELCHER, HERMAN A
• Application Number:
  US11/251,231
• Publication Number:
  US 20060085385A1
• Time in Patent Office: 3,308 Days
• Field of Search: 709/226, 709/203, 707/999.001
• US Class Current: 709/226
• CPC Class Codes: G06F 16/00 Information retrieval; Database structures therefor; File system structures therefor
• CPC Class Codes: G06F 16/152 using file content signatures, e.g. hash values
• CPC Class Codes: G06F 16/164 File meta data generation
• CPC Class Codes: G06F 16/1834 implemented based on peer-to-peer networks, e.g. gnutella p2p communication protocols H04L67/104
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks

Abstract

In a peer-to-peer network of peers which are interconnected for sharing content data, the peers store content files of content data in a file structure comprising a plurality of content folders each content folder containing any number of content files of related content data, and a description file containing both unique identification information and descriptive information in XML format describing the content file or files stored in the same content folder. Requesting peers transmit search query messages which specify search criteria for passage through the network. Peers receiving a search query message compare the search criteria with the descriptive information contained in the description files in each of their plurality of content folders and in the event of there being a matching content folder transmit a hit message including the identification information to identify the matching content folder for passage back through the network to the respective requesting peer.

Claims

1. A peer-to-peer network of computers, which are interconnected so as to allow sharing of content data, comprising:

a plurality of computers configured to pass through the network messages that originate from respective requesting computers;

respective computers in the network are configured to store in a memory content files of content data in a file structure comprising a plurality of content folders, each content folder containing any number of content files, wherein;

at least one of the content folders contains a plurality of content files having related content data, and

each content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, further contains a corresponding description file, wherein;

the corresponding description file is a separate file from the at least one content file and from the plurality of content files,

the corresponding description file contains descriptive information describing the plurality of content files that are stored in the same content folder as the corresponding description file, in the case of the content folder that contains the plurality of content files, and

the corresponding description file contains descriptive information describing the at least one content file that is stored in the same content folder as the corresponding description file, in the case of the content folder that contains the at least one content file;

the respective requesting computers are configured to transmit a search query message that specifies search criteria for passage through the network; and

the respective computers configured to store content files are further configured to, after receipt of the search query message that specifies search criteria, compare the search criteria with the descriptive information contained in the corresponding description file in each content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, and in an the event of there being a matching content folder, to transmit a hit message identifying the matching content folder for passage back through the network to the respective requesting computer,

wherein the corresponding description file further contains identification information and the hit message identifies the matching content folder by including the identification information of the description file that contains the descriptive information matching the search criteria, and

wherein the identification information contained in the corresponding description file is unique within the peer-to-peer network.

2. The peer-to-peer network of computers according to claim 1, wherein the content data includes image data and the descriptive information includes information specifying the nature of the image data.

3. The peer-to-peer network of computers according to claim 1, wherein the file structure comprising the plurality of content folders is configured within in a common folder.

4. The peer-to-peer network of computers according to claim 1, wherein the respective computers configured to store in the memory the content files of the content data are further configured to:

accept input from a user specifying the at least one content file or the plurality of content files to be stored, and input from the user of at least part of the descriptive information;

include the descriptive information input by the user in the corresponding description file;

store the corresponding description file and the plurality of content files in the same content folder as the corresponding description file, in the case of the content folder that contains the plurality of content files; and

store the corresponding description file and the at least one content file in the same content folder as the corresponding description file, in the case of the content folder that contains the at least one content file.

5. The peer-to-peer network of computers according to claim 1, wherein the corresponding description file contains the descriptive information in Extensible Markup Language format.

6. The peer-to-peer network of computers according to claim 5, wherein the search criteria is in Extensible Markup Language format and the respective computers configured to store in the memory the content files are further configured to compare the search criteria with the descriptive information contained in the corresponding description file by parsing the descriptive information with respect to the search criteria.

7. The peer-to-peer network of computers according to claim 1, wherein the respective requesting computers are configured to, after receipt of the hit message, connect directly to the respective computer that generated the hit message and:

download the plurality of content files in the matching content folder, in the case of the matching content folder being the content folder that contains the plurality of content files, and

download the at least one content file in the matching content folder, in the case of the matching content folder being the content folder that contains the at least one content file.

8. The peer-to-peer network of computers according to claim 1, wherein

the respective requesting computers are configured to transmit, after receipt of the hit message, a file list query message identifying the matching content folder for passage to the respective computer that generated the hit message, and

the respective computers configured to store in the memory the content files are further configured to, after receipt of the file list query message, transmit for passage back through the network, to the respective requesting computer that transmitted the file list query message identifying the matching content folder, a file list response message that:

identifies the plurality of content files in the matching content folder, in the case of the matching content folder being the content folder that contains the plurality of content files, and

identifies the at least one content file in the matching content folder, in the case of the matching content folder being the content folder that contains the at least one content file.

9. The peer-to-peer network of computers according to claim 8, wherein the respective requesting computers are further configured to, after receipt of the file list response message, accept input from a user specifying the at least one content file or the plurality of content files specified in the file list response message and to connect directly to the respective computer that generated the hit message and:

download the plurality of content files specified by the user, in the case of the matching content folder being the content folder that contains the plurality of content files, and

download the at least one content file specified by the user, in the case of the matching content folder being the content folder that contains the at least one content file.

10. A computer configured to connect into a peer-to-peer network of computers that are interconnected so as to allow sharing of content data, comprising:

a memory configured to store the content data;

a processor configured to execute instructions; and

an interface configured to communicatively connect the computer to the peer-to-peer network, wherein

the computer is configured to pass through the network messages that originate from respective requesting computers;

the computer is configured to store in the memory content files of the content data in a file structure comprising a plurality of content folders, each content folder containing any number of content files, wherein;

at least one of the content folders contains a plurality of content files having related content data, and

each content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, further contains a corresponding description file, wherein;

the corresponding description file is a separate file from the at least one content file and from the plurality of content files, and

the corresponding description file contains descriptive information describing the plurality of content files that are stored in the same content folder as the corresponding description file, in the case of the content folder that contains the plurality of content files, and

the corresponding description file contains descriptive information describing the at least one content file that is stored in the same content folder as the corresponding description file, in the case of the content folder that contains the at least one content file;

the messages that the computer is configured to pass through the network include a search query message that specifies search criteria; and

the computer is configured to, after receipt of the search query message that specifies search criteria, compare the search criteria with the descriptive information contained in the corresponding description file in each content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, and in the event of there being a matching content folder, to transmit a hit message identifying the matching content folder for passage back through the network to the respective requesting computer,

wherein the corresponding description file further contains identification information and the hit message identifies the matching content folder by including the identification information of the description file that contains the descriptive information matching the search criteria, and

wherein the identification information contained in the corresponding description file is unique within the peer-to-peer network of computers.

11. The computer according to claim 10, wherein content data includes image data and descriptive information includes information specifying the nature of the image data.

12. The computer according to claim 10, wherein the file structure comprising the plurality of content folders is configured within in a common folder.

13. The computer according to claim 10, wherein the computer is further configured to:

accept input from a user specifying the at least one content file or the plurality of content files to be stored, and input from the user of at least part of the descriptive information;

include the descriptive information input by the user in the corresponding description file;

store the corresponding description file and the plurality of content files in the same content folder as the corresponding description file, in the case of the content folder that contains the plurality of content files; and

store the corresponding description file and the at least one content file in the same content folder as the corresponding description file, in the case of the content folder that contains the at least one content file.

14. The computer according to claim 10, wherein the corresponding description file contains the descriptive information in Extensible Markup Language format.

15. The computer according to claim 14, wherein the search criteria is in Extensible Markup Language format and the computer is further configured to compare the search criteria with the descriptive information contained in the corresponding description file by parsing the descriptive information with respect to the search criteria.

16. The computer according to claim 10, wherein the messages that the computer is configured to pass through the network include a file list query message identifying the matching content folder, and the computer is further configured to, after receipt of the file list query message, transmit for passage back through the network, to the respective requesting computer that transmitted the file list query message identifying the matching content folder, a file list response message that:

identifies the plurality of content files in the matching content folder, in the case of the matching content folder being the content folder that contains the plurality of content files, and

identifies the at least one content file in the matching content folder, in the case of the matching content folder being the content folder that contains the at least one content file.

17. The computer according to claim 10, wherein the computer is further configured to transmit the search query message that specifies the search criteria for passage through the network for causing other computers in the peer-to-peer network to compare the search criteria with the descriptive information contained in the corresponding description file in content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, that are stored on the other computers, and in the event of there being a matching content folder stored on at least one of the other computers, to transmit at least one other hit message identifying the matching content folder stored on the at least one of the other computers for passage back through the network to the computer.

18. The computer according to claim 17, wherein the computer is configured to, after receipt of the at least one other hit message connect directly to the at least one of the other computers that generated the at least one other hit message and:

download the plurality of content files in the matching content folder stored on the at least one of the other computers, in the case of the matching content folder being the content folder that contains the plurality of content files, and

download the at least one content file in the matching content folder stored on the at least one of the other computers, in the case of the matching content folder being the content folder that contains the at least one content file.

19. The computer according to claim 17, wherein the computer is further configured to, after receipt of the at least one other hit message identifying the matching content folder stored on the at least one of the other computers, transmit a file list query message identifying the matching content folder for passage to the at least one of the other computers that generated the at least one other hit message, for causing the at least one of the other computers to transmit for passage back through the network to the computer a file list response message that:

identifies the plurality of content files in the matching content folder, in the case of the matching content folder being the content folder that contains the plurality of content files, and

identifies the at least one content file in the matching content folder, in the case of the matching content folder being the content folder that contains the at least one content file.

20. The computer according to claim 19, wherein the computer is further configured to, after receipt of the file list response message, accept input from a user specifying the at least one content file or the plurality of content files specified in the file list response message and to connect directly to the at least one of the other computers that generated the at least one other hit message and:

download the plurality of content files specified by the user, in the case of the matching content folder being the content folder that contains the plurality of content files, and

download the at least one content file specified by the user, in the case of the matching content folder being the content folder that contains the at least one content file.

21. A method implemented by a computer communicatively connected to a peer-to-peer network of plural computers that are interconnected for sharing of content data and for storing the content data, the method comprising:

passing through network messages that originate from respective requesting computers;

storing, in a memory of the computer, content files of the content data on respective computers in a file structure comprising a plurality of content folders, each content folder containing any number of content files, wherein;

at least one of the content folders contains a plurality of content files having related content data, and

each content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, further contains a corresponding description file, wherein;

the corresponding description file is a separate file from the at least one content file and from the plurality of content files, and

the corresponding description file contains descriptive information describing the plurality of content files that are stored in the same content folder as the corresponding description file, in the case of the content folder that contains the plurality of content files, and

the corresponding description file contains descriptive information describing the at least one content file that is stored in the same content folder as the corresponding description file, in the case of the content folder that contains the at least one content file;

wherein the messages that the computer is configured to pass through the network include a search query message that specifies search criteria; and

comparing, after receipt of the search query message that specifies search criteria, the search criteria with the descriptive information contained in the corresponding description file in content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, and in the event of there being a matching content folder, transmitting a hit message identifying the matching content folder for passage back through the network to the respective requesting computer,

wherein the corresponding description file further contains identification information and the hit message identifies the matching content folder by including the identification information of the description file that contains the descriptive information matching the search criteria, and

wherein the identification information contained in the corresponding description file is unique within the peer-to-peer network.

22. A non-transitory computer readable storage medium having executable instructions stored thereon, which when executed by a computer communicatively connected to a peer-to-peer network of plural computers that are interconnected for sharing of content data and for storing the content data, cause the computer to implement a method comprising:

passing through network messages that originate from respective requesting computers;

storing, in a memory of the computer, content files of the content data on respective computers in a file structure comprising a plurality of content folders, each content folder containing any number of content files wherein;

at least one of the content folders contains a plurality of content files having related content data, and

each content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, further contains a corresponding description file, wherein;

the corresponding description file is a separate file from the at least one content file and from the plurality of content files, and

the corresponding description file contains descriptive information describing the plurality of content files that are stored in the same content folder as the corresponding description file, in the case of the content folder that contains the plurality of content files, and

the corresponding description file contains descriptive information describing the at least one content file that is stored in the same content folder as the corresponding description file, in the case of the content folder that contains the at least one content file,

wherein the messages that the computer is configured to pass through the network include a search query message that specifies search criteria; and

comparing, after receipt of the search query message that specifies search criteria, the search criteria with the descriptive information contained in the corresponding description file in each content folder that contains at least one content file, including the at least one of the content folders that contains a plurality of content files, and in the event of there being a matching content folder, transmitting a hit message identifying the matching content folder for passage back through the network to the respective requesting computer,

wherein the corresponding description file further contains identification information and the hit message identifies the matching content folder by including the identification information of the description file that contains the descriptive information matching the search criteria, and

wherein the identification information contained in the corresponding description file is unique within the peer-to-peer network.