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:
Aug. 18, 1992
Filed:
Mar. 07, 1991
Noboru Okino, Gyoda, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A logic circuit part, which is composed of a flip-flop group and a combinational circuit and performs a sequential logic operation, is added with a specify circuit for selectively specifying desired flip-flop circuits in the flip-flop group and a write circuit for applying a set or reset signal to the flip-flop circuits selectively specified by the specify circuit. Each flip-flop circuit includes: a flip-flop for writing input data in response to a system clock; a first AND gate which, when the flip-flop circuit is selectively specified by the specify circuit, passes therethrough the set signal to set the flip-flop; a second AND gate which, when the flip-flop circuit is selectively specified by the specify circuit, passes therethrough the reset signal to reset the flip-flop; and a third and gate which, when the flip-flop circuit is selectively specified by the specify circuit, passes therethrough the output logic of the flip-flop to the outside.