Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
January 20, 2015
Patent Application Number
13466381
Date Filed
May 8, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
An associative memory that can reduce search errors is provided. An associative memory includes R distance/time conversion circuits DT1 to DTR. The R distance/time conversion circuits DT1 to DTR each include a NAND circuit 40 and N bit stages 41 to 4k. The N bit stages 41 to 4k delay a signal from the NAND circuit 40 by longer delay time as the distance between reference data and search data is greater and oscillate the signal. Among R oscillation signals output from the distance/time conversion circuits DT1 to DTR, the earliest changing oscillation signal is detected as an oscillation signal for the Winner row.
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