Method for maintaining a correct time in a distributed processing system
US4894846A · kind A · utility
50Cited by
4References
43Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Jun 30, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0667
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for maintaining a correct time in a distributed processing system involves clerk nodes maintaining their local clocks by requesting time intervals from server nodes, and server nodes maintaining their local clocks either by requesting time intervals from other server nodes or by receiving time information from an outside source. Server nodes also provide time intervals to requesting clerk nodes and requesting server nodes with such a method. System time is always increasing and monotonic and faulty servers are detected periodically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.