Time stamp generating system
US7200682B2 · kind B2 · utility
17Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2002 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Jul 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3297
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A time stamp generating system has a time distribution server for generating time data depending on time and a user PC for holding time certification objective digital data. The time distribution server generates time data corresponding to a time point and distributes the time data. The user PC calculates time stamp generating data by using the time certification objective data as an input, acquires the time data generated by the time distribution server, and processes the time data on the basis of the time stamp generating data to obtain a time stamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.