Battery backed memory with battery disconnect for improved battery life
US6822346B2 · kind B2 · utility
3Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | May 31, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Battery backed memory for use in an industrial controller allows software disconnect of the battery and memory so that unplanned power outages may receive the benefit of battery backup, but battery power is not unduly wasted during planned power outages when data loss may be accommodated or other provisions may be made for saving data in nonvolatile memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.