Date and time processing in computers
US6853957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Dec 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/258
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A process data capture and reporting system captures process data values at sensors. A client computer appends absolute-value time stamps to the values to complete records, which are uploaded to a server. The server writes the records to a persistent database. At a later stage, the server retrieves selected records, and performs a very fast conversion of the time stamps to a calendar format with “granular” values for units such as day, month, or minute. The conversion is performed in an optimised manner with use of look-up tables in memory. This minimises processor overhead, and is thus very advantageous where data volumes are high and/or near real time reporting is required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.