Information distribution system and information management method
US7197767B2 · kind B2 · utility
27Cited by
6References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2000 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Mar 31, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/42
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An information distribution system includes a portable electronic device, and an information management apparatus for storing both right information and information which corresponds to the portable electronic device and which indicates to whom a right belongs. By using a code unique to the portable electronic device to encrypt concert information as the right information to be offline-providable form, and providing a ticket code generated by the encryption so that it passes through an offline channel at least once, the distribution to each user of the encrypted information can be simplified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.