Bubble domain relational data base system

Details Bubble domain relational data base system Bubble domain relational data base system

G - Physics

11

C

352/37.3

G11C 11/14 (2006.01) G06F 17/30 (2006.01)

Patent

CA 1127760

BUBBLE DOMAIN RELATIONAL DATA BASE SYSTEM Abstract A relational data base system using magnetic bubble domain storage to eliminate data formatting, and dynamic indexing loops to facilitate convenient marking during data qualification and to eliminate redundant traversing of disqualified data during the search operation. A data base is stored in columnized storage tables which insure minimum input/output data traffic during search and retrieval. A suitable storage chip is orga- nized in a major/minor loop organization, with several sections of transfer lines to provide selective access to individual groups of storage loops. Off-chip circuitry includes a compara- tor for comparing data read from a bubble storage chip with a given criterion in order to select appropriate data, and a dynamic indexing loop which keeps track of comparisons. This indexing loop provides an input to a bubble chip controller so that each subsequent search and compare is done only on already qualified data. This eliminates the need for repeated searching through the same data. YO978-008

323624

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