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. 26, 1989
Filed:
Jul. 02, 1987
Akira Ishizuka, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In an error detection circuit for use in combination with a logic unit to detect an error by monitoring a binary signal of k bits in a logic circuit which carries out a predetermined operation with respect to a modulus number, where m is equal to 2.sup.k -1, zeroth through (m-1)-th codes are assigned to the predetermined operation while an m-th code is prepared as a specific code to monitor and to detect an error in the error detection circuit. The logic circuit may be either one of a modulo-m register circuit, a modulo-m coincidence circuit, and a modulo-m calculation circuit. Alternatively, at least two of the modulo-m circuits may be combined to form the logic circuit. If m=3, the specific code may be (1, 1).