Associative memory device

Abstract

Abstract PURPOSE: To obtain the associative memory array device possible for high speed pattern processing, by giving the associative function having vaguness by an arbitrary humming distance without increasing the logic functions of associative memory cell. CONSTITUTION: In a memory unit in array shape arrangement of a unit cell Qij forming 4-bit, 4 words controlled with a retrieval data Sj and a mask data Mj, when the 4-bit constituting one word is split into blocks B 1 (Q i1 , Q i2 ), B 2 (Q i3 , Q i4 ), the selection signal Ij having 1 or 2 or more of humming interval is output from the retrieval result processing circuit Rj, and the data with 1 word of humming interval with the data Sj in the block B 1 through the logical product processing via the register IRj and the logical product circuit Gj is stored in the register IRj and this is the same the data in the block B 2 . Thus, without increasing the logical function according to the block selection, the associative function with vaguness due to an arbotary humming interval is given and high speed processing each block of humming interval 1 can be made. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Takeshi Ogura
• 👤 Tadanobu Nikaido

Bibliographic Details