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Marker Loops To Accommodate Multiple Users

IP.com Disclosure Number: IPCOM000068395D
Original Publication Date: 1979-Apr-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Chang, H Greanias, EC [+details]

Abstract

In a relational data base system using magnetic bubble domain storage to eliminate data formatting, dynamic indexing loops are used 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 maximum input/ output data traffic during search and retrieval. A suitable storage chip is organized 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 comparator 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.