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:
Sep. 18, 1990
Filed:
Oct. 04, 1988
Applicant:
Inventors:
Kenji Noguchi, Hyogo, JP;
Tsuyoshi Toyama, Hyogo, JP;
Shinichi Kobayashi, Hyogo, JP;
Nobuaki Andoh, Hyogo, JP;
Kenji Kohda, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 401 ; 371-51 ;
Abstract
An EEPROM having an ECC circuit further comprises a counter circuit. The ECC circuit checks and corrects bit errors included in data read out from a memory cell array. In addition, the ECC circuit generates a predetermined signal every time it corrects a bit error. The counter circuit counts a predetermined signal generated from the ECC circuit.