Method of pausing an MPEG coded video stream
US7023924B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2000 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Apr 30, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4341
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To produce a paused MPEG coded video stream from an original MPEG coded video stream, an I frame is extracted from the original stream, and a Group of Pictures for a “pause” (a pause GOP) is constructed containing the extracted I frame, some “frozen” frames, and padding. Each “frozen” frame is a P frame that repeats the I frame. When a pause is requested in the original stream, a seamless transition is made from the I frame to the pause GOP, and the pause GOP is played in a loop until a resume is requested. To resume, the pause GOP is completed and a seamless transition is made to continue in the original stream from the I frame where the pause had begun.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.