Real-time slide presentation multimedia data object and system and method of recording and browsing a multimedia data object
US7356763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2001 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Mar 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for recording a real-time slide presentation to generate a low bit-rate multimedia data object including a plurality of synchronized overlayed replayable bitstreams including at least a bitstream corresponding to an image of each of a plurality of slides of the slide presentation, a bitstream corresponding to symbolic representations of presenter's interactions with points of interest within each slide, and a bitstream corresponding to a presenter's audio associated with each slide is described. The plurality of bitstreams can be linked so as to make the multimedia data object browsable on a presenter interaction event-by-event basis. Interaction events can be linked to the audio bitstream and/or to a video clip bitstream. Video clips can be recorded during the real-time presentation such that when replaying the multimedia data object, a video clip is synchronized and replayed dependent on presenter interaction events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.