Date-and-time management device and signature generation apparatus with date-and-time management function
US7272720B2 · kind B2 · utility
9Cited by
14References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2001 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Mar 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q10/109
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
Before accepting a setting request from a predetermined manager in a plurality of date-and-time managers capable of issuing a date-and-time setting request, a setting request from any manager can be accepted. After accepting a setting request from a predetermined manager, only the setting request from the predetermined manager can be accepted. A date and time can be set in response to an accepted date-and-time setting request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.