Magnetic memory organization
US4237544A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1978 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | Nov 15, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/0858
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A magnetic bubble memory herein includes a direct propagation path between a bubble generator and a detector. A control circuit is adapted to store indications of the current state of the memory and the address of presently accessed data in the path responsive to a power failure signal. Portions of the memory are organized in a familiar major, minor mode, data from two major loops being replicated into the direct path. The arrangement exhibits improved access times, improved data rates and is secure from power failure problems. Moreover, the memory organization permits the realization of large capacity chips without requiring block replication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.