Management system for protected and temporarily-erased still picture information
US6389222B1 · kind B1 · utility
46Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1999 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Dec 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information storage medium used in the management system can record prescribed control information and one or more programs including video object groups each of which is constituted by one or more still pictures. A rewritable protect information for prohibiting erasure of the program is stored in the control information in unit of the program. Or, a rewritable temporary erase information for setting the video object group at a temporarily erased state is stored in the control information in a unit including the video object group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.