Playback device for disc-shaped recording media
US6526003B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Oct 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A playback device for disk-shaped recording media is proposed, which makes it possible to skip over storage data groups on audio disks. The playback device includes a scanning device and a device for evaluating content data recorded in a start-up area on the recording medium. The recording medium inserted in the playback device is recognized as a storage disk or as an audio disk, depending on the evaluation of the content data. In the event that a storage disk is recognized, a playback process is terminated, and in the event an audio disk is recognized, the scanning device skips to a just addressed title of the audio disk. The scanning device, during the playback of a title of the audio disk, scans coded supplemental information data recorded with respect to this title. The evaluation device, on the basis of the supplemental information, recognizes whether the title just played is an audio data group or a storage data group. In the event that a storage data group is recognized, the scanning device skips to a different title.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.