Method and apparatus for a file sharing and synchronization system

• US 8,370,298 B2
• Filed: 12/23/2010
• Issued: 02/05/2013
• Est. Priority Date: 11/08/2004
• Status: Active Grant

• Current Assignee: Dropbox, Inc.
• Original Assignee: SugarSync Incorporated
• Inventors: Strong, Jack B., Thomas, Gibu
• Primary Examiner(s): Pulliam, Christyann
• Assistant Examiner(s): Khoshnoodi, Fariborz
• Application Number:
  US12/928,998
• Publication Number:
  US 20110106880A1
• Time in Patent Office: 775 Days
• Field of Search: 707/608, 707/616, 707/626, 707/694, 707/769, 707/620, 707/623
• US Class Current: 707/620
• CPC Class Codes: G06F 16/1767 Concurrency control, e.g. optimistic or pessimistic approaches
• CPC Class Codes: G06F 16/182 Distributed file systems
• CPC Class Codes: G06F 16/2365 Ensuring data consistency and integrity
• CPC Class Codes: G06F 16/48 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 16/51 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes

Abstract

A computer-implemented method is provided for managing and sharing picture files. In one embodiment of the present invention, the method comprises providing a server platform and providing a data store on the server platform for maintaining full resolution copies of the files shared between a plurality of sharing clients. A synchronization engine is provided on the server platform and is configured to send real-time updates to a plurality of sharing clients when at least one of the sharing clients updates or changes one of said files. A web interface may also be provided that allows a user to access files in the data store through the use of a web browser.

Claims

1. A method for synchronizing and sharing data across a plurality of client devices in a system that includes a synchronization server, the method comprising:

maintaining a copy of one or more data objects on each of the plurality of client devices and the synchronization server;

detecting a change to one of the data objects on one of the client devices;

sending notification of the change from said client device to the synchronization server;

updating the corresponding data object on the synchronization server with the change;

sending notification of the change from the synchronization server to the other of the plurality of client devices; and

updating the corresponding data object on the other plurality of client devices with the change;

wherein, on each of the client devices, a client synchronization application executing on the client device monitors the data objects for changes and communicates with the synchronization server regarding any changes to the data objects;

wherein the client synchronization application enables the user to manage the synchronization of data objects and share data objects with other users; and

wherein the client synchronization application includes a contact list for enabling the user to select other users with whom to share data objects and data object group management for enabling the user manage shared data objects.

2. The method of claim 1, wherein the data object group management is a feature that enables a user sharing one or more data objects to select one or more types of actions that the other users have permission to take with respect to shared data object(s).

3. The method of claim 1, wherein data object group management is a feature that enables a multi-phase commit process for a shared data object, wherein changes are visible only to a single user or a select group of users until the changes are published to a wider audience of users with whom the data object is shared.

4. The method of claim 1, wherein in response to the synchronization server receiving notification from two different client devices of conflicting changes the same data object, the synchronization server applies conflict resolution rules to resolve any conflict.

5. The method of claim 1 further comprising:

providing a web interface on the synchronization server through which the data objects stored on the synchronization server are accessed via a web browser.

6. The method of claim 5, wherein in response to a user modifying one of the data objects on the synchronization server via a web browser, the synchronization server notifies the plurality of client devices of the modification.

7. The method of claim 5, wherein, in response to a user accessing a data object via a web browser, the synchronization server provides the web browser with real-time updates to the data object.

8. The method of claim 1, wherein the synchronization server referenced in claim 1 is comprised of a plurality of servers that are networked together and that propagate notices of changes to the plurality of client devices.

9. The method of claim 1, wherein the data objects includes files.

10. The method of claim 9, wherein the files include photos.

11. The method of claim 9, wherein the files include audio files.

12. The method of claim 9, wherein the files include video files.

13. The method of claim 9, wherein the files include documents.

14. The method of claim 9, wherein types of client devices include personal computers and mobile communication devices.