System and method employing extended memory capacity detection
US5305445A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1992 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Dec 1, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0684
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory system of a computer, such as a lap-top type personal computer, uses a standard memory having a reserve region of, for example, 384 KB or 512 KB, and an extended memory of, for example, 1 MB or 2 MB, mounted in a memory extend slot. The memory extend slot can produce a memory type signal representative of the type of extended memory. A capacity detector detects the capacity of the extended memory mounted in the memory extend slot based on the memory type signal output from the memory extend slot. A memory controller then assigns a reserve region to an address region following the address region of the extended memory, based on the capacity detection signal output from the capacity detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.