MPEG dual-channel decoder data and control protocols for real-time video streaming
US7174561B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2001 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | May 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for producing multiple concurrent real-time video streams from stored MPEG video clips includes a video server and at least one MPEG decoder array. The decoder array has multiple decoder pairs, each pair having a video switch for switching from one decoder in the pair to the other at a specified time. Switching may occur from a specified Out-point frame to a specified In-point frame, and the specified frames can be any frame type at any location in the group of pictures (GOP) structure. In a preferred construction, the video server has a controller server linked to a series of data mover computers, each controlling one or more respective decoder arrays. The data mover computers use a control protocol to control the decoder arrays, and each decoder uses a data protocol to request data from a respective data mover computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.