Memory card with control and voltage boosting circuits and electronic appliance using the same
US5267211A · kind A · utility
47Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | May 12, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory card mounted with a storage device and an electronic appliance using such a memory device. The memory card has an RAM (36), a battery (38), a voltage converter (40) for boosting a voltage of the battery and for outputting the boosted voltage, and a switching circuit (42) for receiving an output voltage of the voltage converter and an externally supplied voltage and for supplying one of the received voltages to the RAM as a driving voltage therefor, so that a voltage higher than the battery voltage is supplied to the RAM at the time of backup to thereby reduce soft errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.