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.

Date of Patent:
Jul. 27, 1982

Filed:

May. 13, 1980
Applicant:
Inventor:

Masayuki Miyoshi, Hadano, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364578 ; 371 23 ;
Abstract

A logic simulation is executed using a real circuit as a part of a simulation model of a logic circuit subjected to the logic simulation. The simulation model is formed of the real circuit and a simulation circuit, and the operation of the real circuit and the logic simulation of the simulation circuit are performed alternately. The operation of the real circuit is performed in response to an input signal thereto representing the condition of the output node of the simulation circuit, while the logic simulation of the simulation circuit is executed in response to a stimulus in the form of an output signal of the real circuit which is applied to the input node of the simulation circuit.


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