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Parallel Associative Magnetic Bubble Memory

IP.com Disclosure Number: IPCOM000051663D
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Landau, JR: AUTHOR

Abstract

The memory system 9, shown in the figure, consists of N subunits 10 operating in parallel to supply data to a memory output line 11. Each subunit 10 has an output 12 consisting of eight lines, each of which provides a serial by bit data stream at a rate W. The data rate of memory output line 11 is, therefore, N x W.

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Parallel Associative Magnetic Bubble Memory

The memory system 9, shown in the figure, consists of N subunits 10 operating in parallel to supply data to a memory output line 11. Each subunit 10 has an output 12 consisting of eight lines, each of which provides a serial by bit data stream at a rate W. The data rate of memory output line 11 is, therefore, N x W.

A separate comparator 13 is connected to each output line 12 to facilitate searching for predefined information stored in the memory system 9. Each comparator 13 is also connected to the output of a microprocessor 17 which supplies the search argument to the respective comparators 13. The output 16 of each comparator is also connected to the input of the microprocessor 17 to enable the microprocessor to open an "AND" gate 18 when the search is successful.

A search is initiated when one byte of the search argument is distributed to each of the comparators 13 by the microprocessor 17. The microprocessor then directs a read operation of the memory 9. As data is read in parallel from each subunit 10, the comparators 13 continually compare it with the respective comparands. When a match is simultaneously found on all comparands of the search argument, the search is completed and data is passed through the "AND" gate 18 which has been opened by the microprocessor 17 in response to a successful search.

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