Systems and methods for memory control
US5581507A · kind A · utility
7Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Dec 3, 1996 |
| 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.