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( Coding techniques to improve the sense margin in the associative memory ) and a computer program operating method and its associative memory device with improved sense margin
( Coding techniques to improve the sense margin in the associative memory ) and a computer program operating method and its associative memory device with improved sense margin
A content addressable memory using encoded data words and search words, and techniques for operating such device. In one embodiment, the data word is transformed into a code word guaranteeing a mismatch of at least two code word bits of different binary values during the memory search operation when the data word does not match a search word. In another embodiment, the search word is transformed into a search code such that the Hamming distance between the code word and the search code is greater than a given threshold when there is a mismatch of at least one bit between the data word and the search word.
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