Electronic apparatus, expendable item recycling apparatus, expendable item, electronic apparatus control method, expendable item recycling method, program, and computer-readable medium
US7333738B2 · kind B2 · utility
6Cited by
1References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 2005 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Feb 4, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A technique is disclosed for storing in a recyclable expendable item used in an electronic apparatus first encrypted information generated by encrypting usable/unusable information pertaining to the expendable item using a first key, and a second key corresponding to the first key, decoding the first encrypted information using the second key; and controlling an operation of the electronic apparatus based on a decoding result of the decoding part and decoded usable/unusable information obtained by the decoding part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.