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:
Jan. 01, 1991
Filed:
Oct. 21, 1985
Shinichiro Miyaoka, Kawasaki, JP;
Akira Muramatsu, Kawasaki, JP;
Motohisa Funabashi, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention is capable of registering and reading out a logical element for which the state of the output pin changes. The system includes an input side reading out circuit for reading out the kind of logical element and the states of all the input pins thereof, a decision circuit for deciding the presence of the output pin that the status change is produced on when a logical operation is carried out according to the kind of logical element, an output side reading out circuit for reading out the information related to the logical element of the output pin producing the status change, and an exchange sending circuit for sending each information read out from the output side reading out circuit to the desired registering and reading out circuit for precise high speed logic simulation of a large scale logic circuit containing MOS-type logical elements.