System and method for simultaneously reading and writing data in a random access memory
US5802579A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | May 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/1078
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system (10) and method for providing simultaneous data reading and writing for a random access memory (18) include storing new data (14) and a corresponding new data address (26), comparing the new data address to a current read address (32), and substituting (38) the new data for the data at the current read address at the output (38) while simultaneously writing the new data into the memory (18). The system and method are particularly suited for application in space-based communication satellites which utilize continuous memory read accesses since the invention provides the functionality of a dual-ported RAM while being implementable with fewer gates and less complex control circuitry to provide reduced power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.