Digital video disc its recording and reproducing methods and related encoder and decoder using the same
US6385387B1 · kind B1 · utility
21Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
At least one musical composition is transmitted via a digital video disc together with bonus information relating to the musical composition and an approved interactive data required when a user accesses the bonus information. An arbitrary interactive data is entered by the user accessing the bonus information. The transmitted musical composition is reproducible regardless of the entered interactive data. However, a reproduction of the bonus information is allowed only when the entered interactive data agrees with the approved interactive data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.