Information recording medium, apparatus for recording the same and apparatus for reproducing the same
US5889746A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 20, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Mar 20, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording medium includes: record information pieces logically independent of each other and constituting a hierarchical structure of hierarchical layers; layer information pieces for specifying one of the hierarchical layer; kind information pieces for indicating kinds of information relating to the record information pieces; a text group including layer related texts and record information related texts successively arranged in a mixed manner; text arrangement information pieces corresponding to the text group and arranged in pair with one of the layer information piece and the kind information piece corresponding to the text, the text arrangement information piece indicating a position of the text within the text group. The layer information pieces are arranged in an order in accordance with the hierarchical structure, and the kind information pieces are arranged in pair with the layer information pieces indicating the layer of the corresponding record information piece so as to specify the logical position of the corresponding record information piece within the hierarchical structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.