Matrixed magnetic bubble memories
US4081861A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1975 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Feb 10, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A magnetic bubble memory organization comprising a plurality of magnetic bubble memory chips arranged in rows and columns to form a matrix. Each chip has a plurality of memory locations for storing magnetic bubbles, selectively operable components for transferring magnetic bubbles out of and into memory locations for the retrieval and storage of information, a selectively operable replicator and annihilator of magnetic bubble information transferred out of memory locations on the chip, a generator selectively operable for producing magnetic bubbles for storage in memory locations on the chip, and a detector for sensing the presence of magnetic bubbles transferred out of memory locations and for providing an electrical output signal in response to the detection thereof. First transfer electrical control signals are respectively commonly applied to the first transfer components on all chips in each of the respective columns of the matrix for their simultaneous actuation. Similarly second transfer electrical control signals are respectively commonly applied to the second transfer components on all chips in each of the respective columns of the matrix for their simultaneous actuation. …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.