The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 1995
Filed:
Dec. 19, 1994
Hirokazu Yonezawa, Moriguchi, JP;
Seiji Yamaguchi, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A semiconductor memory device has an address translator and a comparator. An entry of the address translator includes an associative memory cell array for storing and comparing a logical address of at least m bits. A first decoder generates a first word signal for the associative memory cell array. A first random access memory cell array stores a physical address of m bits. A controller generates a word signal for the first random access memory cell according to the first word signal and a result of a comparison by the associative memory cell array. A second random access memory cell stores a physical address of m bits. The second random access memory cell is physically disposed near the first random access memory cell array. A second decoder generates a second word signal for the second random access memory cell array. Outputs of the first and second random access memory cell arrays are connected to and compared by the comparator which outputs a signal upon coincidence between the outputs of the first and second random access memory cell arrays.