System for fast angle changing in video playback devices
US8837921B2 · kind B2 · utility
1Cited by
51References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2004 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Dec 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide faster user-selected scene switching during playback of a video production. In one embodiment, several channels of video (e.g., several video streams each depicting a different camera angle) are read from interleaved data on a DVD disc. Each channel's data is maintained in a channel buffer that is input to a video decoder via a selector. When a signal from a user input device indicates that a user has selected a new channel, the selector can immediately provide the selected channel's data from the channel buffer to the video decoder, thus providing an increase in switching speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.