System and method for interactive distribution of selectable presentations
US7536705B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1999 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Feb 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2007/1739
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage, multiplexing, and distribution method is provided for use in a digital data distribution system. The system provides simultaneous transmission of a plurality of uniquely identified, independent data streams within an assigned channel bandwidth of local, metropolitan and wide area distribution media. The independent data streams can include presentations specifically requested by the receiving user. Upon request from some number of users from their premises, the system assembles a combination of optional image elements such as motion and still frame video, background and descriptive audio, text and graphical overlays into presentation data streams appropriate to the user requests. Individual data streams are multiplexed within a higher bandwidth data stream for simultaneous delivery within the bandwidth assigned for this data transmission. The techniques unique to the system, in regard to storage, timing and synchronization, can be implemented using techniques described within the MPEG profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.