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Patent

Associative memory system

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TLDR
An associative memory system for grouping events in n dimensional space is described in this article, where each event is represented by an n-bit word and the separation of a plurality of messages can be made a maximum and the number of tolerable errors set to any desired value.
Abstract
An associative memory system is disclosed for grouping events in n dimensional space wherein each event is represented by an n bit word As a specific example of the comparison and grouping capabilities of this associative memory system, an encoding and decoding system is disclosed wherein the separation of a plurality of messages can be made a maximum and the number of tolerable errors set to any desired value Specifically, to decode, the output current, during an associative search of the memory, is proportional to the separation between the search message and the stored, error-free message Adjustable threshold sensing of the output current enables one to select the maximum amount of tolerable error To encode, an associative search is made for the coded version of a message utilizing the uncoded version of the message

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System and method for approximate searching very large data

TL;DR: In this article, the Pigeonhole principle is used to find a subset of a bit-attribute vector that is within a particular Flamming distance, which can be used for approximate matching.
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TL;DR: In this paper, a nonvolatile associative memory cell is disclosed that is suitable for use in universal logic systems, i.e., systems for generating arbitrary Boolean functions, and the cell itself utilizes floating gate, field effect transistors for storing information in the form of avalanche injected electric charge.
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TL;DR: In this paper, the authors proposed an embodiment of the present invention to reduce the area of one memory cell by using a reading transistor (capacitance between a gate electrode and a channel formation region).
References
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Patent

High-speed associative memory

TL;DR: An associative search apparatus for an electronic bulk storage in which data are stored in parallel by word in a plurality of memory elements in which the data bits are electronically rotatable is described in this paper.