Difference engine for media change management
US12272381B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2022 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Sep 21, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A universal media difference engine generates a change list specifying the edits required to create an edited revision of a media composition from a base version. The difference engine determines the format of the media composition, locates and installs a plug-in corresponding to the format, and uses the plug-in to parse the composition and generate the change list. The supported compositional formats include formats native to specific media editing applications, as well as interoperable formats. The difference engine is able to convert rich change lists expressed in native form to canonical change lists that are compatible with multiple editing applications. Timeline, mixer configuration, and scene graph composition types are supported. Content management system storage requirements are reduced by storing a base version and change lists instead of multiple revisions of the composition. A media composition recreation engine recreates an edited revision by applying a change list to a prior version.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.