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:
Mar. 19, 1996
Filed:
Aug. 04, 1994
Itsuko Kinoshita, Itami, JP;
Akitoshi Osaki, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A memory system, wherein the respective byte memories 1 to 4 is configured so that data of word unit which are the targets of the parity calculation done by the parity calculation circuits 5 to 8 occupy respectively the same bit positions as those of the 4-word data of word unit, is provided with multiplexers 41 to 44 for connecting selectively to the data bus 29 the bit positions of the data of word unit selected by the word select control circuit 23 in such byte memories 1 to 4. The memory system is capable of improving the flexibility of the memory configuration by being eased of the limitation of the arrangement of bits which are the targets of parity calculation, and reducing the occupied areas of the write/read circuit on a chip as well as the electric power consumption.