Reproducing method, reproducing apparatus, and data accessing method
US7159090B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2003 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Jun 21, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99942
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data accessing method includes the steps of obtaining a track information entry about a predetermined track from a play order table, which points to a track descriptor in a track information table; obtaining the track descriptor from the track information table, the track descriptor including a decryption key corresponding to the predetermined track, pointer information that points to a part descriptor of a plurality of part descriptors in a part information table, and name pointer information that points to a name slot entry in a name table having a plurality of name slot entries; using the name slot entry and the part descriptor to read a part of an audio file according to part pointer information in the part descriptor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.