Multimedia distribution over wide area networks
US5568181A · kind A · utility
273Cited by
16References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1995 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | May 1, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/816
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video distribution management system utilizes a shared video library and a wide area network to deliver video files to local caches on the local area networks serving a subset of local viewing stations. A combination of direct local cache access, scheduled future local cache access and speed match distribution of video files makes the overall system both efficient and economical. In particular, a locally stored preface of a video file can be immediately viewed on the local area network while the balance of the video file is transmitted from the remote video library.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.