Static information storage and retrieval – Magnetic bubbles
Patent
1987-08-04
1989-05-30
Moffitt, James W.
Static information storage and retrieval
Magnetic bubbles
G11C 1908
Patent
active
048357391
ABSTRACT:
A data storage system comprises a plurality of bubble memory chips each having a major loop and minor loops. At least one of the minor loops of each chip is used to store bad loop data for its respective chip. A system controller controls operation of the bubble memory chips. The system controller includes a chip controller for controlling operation of the bubble memory chips and a random access memory for storing the bad loop data from all of the bubble memory chips, and for supplying bad loop data to the chip controller so that data is placed only on operative loops of the bubble memory chips. A data transfer bus is used for inputting and outputting data from the system controller to a host computer. The system includes a plurality of bubble memory cassettes, each cassette having a predetermined number. Control signals are provided to the bubble memory chips of bubble memory chips so that more than one bubble memory chip is used simultaneously. A byte of data is stored and retrieved substantially simultaneously.
REFERENCES:
patent: 3678478 (1972-07-01), Copeland, III
patent: 3742471 (1973-06-01), Mikami
patent: 3864671 (1975-02-01), Myer
patent: 4081861 (1978-03-01), Linn
patent: 4091362 (1978-05-01), Chen
patent: 4156934 (1979-05-01), Burford et al.
patent: 4225941 (1980-09-01), Moran
patent: 4270186 (1981-05-01), Flannery
patent: 4287568 (1981-09-01), Lester
patent: 4310897 (1982-01-01), Lazzari
patent: 4326267 (1982-04-01), Lazzari
patent: 4354253 (1982-10-01), Naden
patent: 4400795 (1983-08-01), Irie et al.
patent: 4445199 (1984-04-01), Imazeki et al.
patent: 4459679 (1984-07-01), Sukeda et al.
patent: 4459680 (1984-07-01), Sukeda et al.
patent: 4481606 (1984-11-01), Nozawa et al.
patent: 4485458 (1984-11-01), Sukeda et al.
patent: 4495601 (1985-01-01), Etch et al.
patent: 4498152 (1985-02-01), Futami et al.
Electronics--vol. 54, No. 9; May 5, 1981, pp. 149-151.
Kovacs Eddie J.
Pereira John C.
Geib Richard G.
Grumman Aerospace Corporation
Hoffman Bernard S.
Moffitt James W.
Tick Daniel J.
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