Method of providing an access point into a video data stream and apparatus for carrying out the method
US6240136A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1999 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Feb 18, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8455
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The apparatus according to the invention (VOR) for providing an access point into a stream of interframe-coded video data comprises: a first delay element (.tau.1) for delaying received intraframe- and interframe-coded video data by a fixed value; a decoder (D1) for decoding at least one intraframe-coded frame and interframe-coded frames; a buffer (MEMO) following the decoder (D1) for temporarily storing the decoded frames; an encoder (K2) following the buffer (MEMO) for encoding temporarily stored frames using intraframe coding; and a second delay element (.tau.2) following the encoder (K2) for delaying the interframe-coded frames, with the delay of the second delay element (.tau.2) being less than the delay of the first delay element (.tau.1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.