Method and apparatus for the recording and reproduction of video and/or audio signals
US6658160B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1999 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for recording and reproducing video and/or audio signals having an additional information item, e.g. a title information item, recorded therein, which additional information item may be subsequently inserted into a video picture during reproduction. The additional information data are converted, thereby producing an executable sub-picture unit, and is recorded in a corresponding sub-picture data pack in addition to the data packs for the video/audio signal. Thus, it is possible to record the additional information data separately without difficulty without necessitating a change to the recording format to the effect that special data packs for the additional information items are included in the planning. The invention also relates to a corresponding recording and reproduction apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.