Semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium
US6865431B1 · kind B1 · utility
83Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2000 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | May 26, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3264
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio stream is divided into a plurality of audio object (AOB) files that are recorded having each been encrypted using a different encryption key. At least one piece of track management information (TKI) is provided corresponding to each track. Playlist information (PLI) assigns a playback position in a playback order to each track when a plurality of tracks are to be played back one after the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.