Information processing apparatus, information processing method, data recording medium, and information processing system
US6742118B1 · kind B1 · utility
13Cited by
20References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1998 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Oct 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improvement in protecting information transmitted via a network from illegal copying is disclosed. While data input from an information provider via a network is stored in a storage device, an ID inherent in an information terminal unit stored in a ROM, the time information which is output from a real-time clock counter, an ID of the owner of an ID card read by a card reader are multiplex-recorded as identification information on the input data. Identification information is also multiplex-recorded on the data read from the storage device and to be output through the output terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.