Static information storage and retrieval – Magnetic bubbles – Plural interacting paths
Patent
1979-02-21
1981-09-15
Moffitt, James W.
Static information storage and retrieval
Magnetic bubbles
Plural interacting paths
G11C 1908
Patent
active
042901170
ABSTRACT:
In a memory device which has a plurality of recirculating type storage loops and in which information of the same addresses of the respective storage loops can be read and written in parallel, a memory device wherein information representing whether or not the corresponding storage loop is a bad or defective loop is written in a specified address of each of the storage loops.
REFERENCES:
patent: 3792450 (1974-02-01), Bogar
patent: 4090251 (1978-05-01), Flannigan
patent: 4159412 (1979-06-01), Naden et al.
patent: 4168534 (1979-09-01), Yoshizawa et al.
Asano Atsushi
Kita Yuzo
Mayama Koichi
Saito Nobuo
Sugie Mamoru
Hitachi , Ltd.
Moffitt James W.
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