Systems and methods for memory control
US5914543A · kind A · utility
11Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory controller for supplying backup battery power when a main power supply voltage drops together with programmable plus power fail write protection. The controller includes supravoltage induced sleep mode operation, MOS switching between backup batteries during backup operation based on battery voltage levels and discharge circuitry for battery disposal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.