Efficient similarity detection
US10803013B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Dec 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1097
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A software application platform for uploading a file to a server is disclosed. The server receives a request from a user to upload a file thereto. An upload client extracts file information from the file. The server generates a file signature for the file. The server accesses one or more existing file signatures for each of one or more existing files on the server. The server determines whether any of the one or more existing file signatures are similar to the file signature. Responsive to determining that there is an existing file signature that is similar to the file signature, the server accesses a first hash signature for the existing file. The upload client generates a second hash signature for the file. Responsive to determining that the first hash signature does not equal the second hash signature, the upload client uploads the file to the server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.