Information reproducing apparatus, authenticating apparatus, and information processing system
US6338139B1 · kind B1 · utility
60Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1998 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In this invention, an information recording/reproducing apparatus has an authentication function and directly transfers information to an MPEG board, sub-picture run-length board, speech coding/decoding board without using a main CPU. Thus, information transfer between the information recording/reproducing apparatus and various processing boards can be performed without using a main controller, the load of the main CPU can be alleviated and the main CPU can perform another process during the information transfer period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.