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:
Nov. 14, 1995
Filed:
Apr. 20, 1994
Kazuo Asami, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An EEPROM apparatus being provided with, in an ECC circuit (6), an ECC code generating unit (19) which automatically generates '5(H)' ((H) represents hexadecimal number), that is, '0101(B)' ((B) represents binary number) as the ECC code when data, in which head is 37 1' and thereafter '0' and '1' are repeated in binary notation, for example, '55(H)', that is, '01010101(B)' is written, as the data to be stored in an EEPROM 50, and automatically generates 'A(H)', that is, '1010(B)' as the ECC code when data, in which head is '0' and thereafter '1' and '0' are repeated in binary notation, for example, 'AA(H)', that is, '10101010(B)' is written, and capable of executing checker pattern test easily and in a short time.