Virtual on-demand digital information delivery system and method
US5790935A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Jan 30, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/816
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital information system delivers virtual on-demand information over existing, as well as the next generation, digital transport systems by offloading a portion of the systems' peak bandwidth requirements to the local subscribers. A collaborative filtering system synthesizes the preferences of all of the subscribers and then predicts those items that each subscriber might like, and therefore request. Each subscriber is provided with a local storage device for storing, during off-peak hours, those items recommended by the collaborative filtering system. As a result, only a relatively few subscriber requests must be serviced directly from the central distribution system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.