Real-time key frame generation
US7558760B2 · kind B2 · utility
13Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2007 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Aug 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/47202
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The real-time generation of key frames in a media data stream is disclosed. One embodiment provides a method of processing encoded media data comprising receiving a request to play back the encoded media data from a media receiver, generating one or more key frames from the encoded media data, and sending the generated key frame or key frames to the media receiver. The key frames are generated by decoding the media data, and then encoding the key frames from the decoded media data. In this manner, a frequency of key frames in a media data stream may be increased to improve trick mode and 1× playback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.