Cloud based file storage service
US8620879B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 18, 2010 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jan 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2103
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A server receives from a user's computer a request to store a file and a file hash value. The server determines whether a file with the same hash value is stored on the server. If so, the server grants access to the server's file copy. If not, the server requests the user to upload the file and stores it. The server grants access to the copy by sending the user a pointer to the copy's storage location and associating the user with the pointer in a database. The server can challenge the user's right to access the copy by requesting a file password or a portion of the file stored on the user's computer. The server can limit access to the server's copy to users who successfully respond to the challenge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.