Method and apparatus for testing memory devices under load
US5961656A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1995 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Oct 31, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1612
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for verifying a desired operation of an untrusted memory device is performed under load and includes shadowing read and write operations to the untrusted memory device and to a trusted memory device. The shadowing is performed by concurrently writing data to both the trusted and untrusted memory devices, and concurrently reading data from both the trusted and the untrusted memory devices. All data returned from the trusted and untrusted memory devices in response to the read operations are compared, and if any data compared does not have a same value, a value from the trusted memory device is returned and an error indication is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.