Pattern addressable memory

Details Pattern addressable memory Pattern addressable memory

G - Physics

06

F

354/237

G06F 12/02 (2006.01) G06F 7/22 (2006.01) G06F 17/30 (2006.01) G06N 5/02 (2006.01)

Patent

CA 1263762

A PATTERN ADDRESSABLE MEMORY ABSTRACT The present invention consists of a memory system for storing and retrieving data sequences of symbols in response to a query sequence. Each of the sequences is made up of three types of symbols, constants, delimiters, and variables. A data sequence is retrieved in response to a query sequence if the two sequences can be made identical by replacing the variables in each sequence by constants or combinations of constants and delimiters, said combinations beginning and ending with a delimiter. To reduce the time needed to search the memory for all data sequences corresponding to a given query sequence, multiple processing units are employed. In addition to carrying out rule-based searches, the memory system can also efficiently retrieve all records containing a specified list of key words.

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