Virtual video on demand using multiple encrypted video segments
US6701528B1 · kind B1 · utility
269Cited by
52References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2000 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jan 26, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/47202
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing a virtual video on demand services is disclosed. The method and apparatus disclose the storing of a segment of the video program in advance for VOD viewing at a later time. When the subscriber selects VOD service, a pre-stored video segment is retrieved for presentation to the subscriber. Remaining video program segments simultaneously broadcast on a plurality of channels are recorded in parallel while the pre-stored video program segment is retrieved and presented to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.