AUDIO DATA AND STILL PICTURE RECORDING MEDIUM AND CORRESPONDING PLAYBACK APPARATUS WHICH ENABLE DISPLAYING OF A STILL PICTURE AT A PLURALITY OF PREDETERMINED TIMINGS DURING PLAYBACK OF RECORDED AUDIO DATA
US6687454B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1999 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | May 10, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2220/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A recording medium such as a video CD, for recording both audio and still picture data, has all audio data recorded on successive tracks within one recording region and data of all of the still pictures recorded together within another recording region as successive data sets expressing respective ones of a plurality of groups of still pictures. Each of recorded sets of track control information specifies, for the corresponding track, a still picture group which includes all of the still pictures that are to be displayed during playback of that track, those pictures (within that group) which are actually to be displayed during that playback, and respective display starting time points for the specified pictures. The playback apparatus includes a still picture data memory, and a control section which, when playback of a selected track is designated, judges whether the data of the corresponding still picture group are already stored in the memory, reads out those data and stores in the memory if necessary, and thereafter reads out the requisite still picture data from memory as indicated by the track control information of the selected track during playback of that track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.