Apparatus for the decoding of video data in first and second formats
US7937735B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2002 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Oct 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/47202
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to the generation of video displays on a display screen from video data which is received as an encoded MPEG stream of data and then decoded and processed to be displayed. In the invention the video display can be generated in a conventional format or at least one use selectable alternative format, known as trick mode stream, such as a fast forward or fast cue display. The method of the invention allows the amount of data to be placed into the buffer memory prior to decoding and display of the data in the alternate format, to be calculated without reference to the MPEG stream information which is unavailable in the trick mode stream of data. The method therefore minimizes delay in the commencement and end of the display of the trick mode stream display format when selected by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.