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. 07, 1997
Filed:
Nov. 18, 1994
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395500 ; 364578 ;
Abstract
For simulation evaluation of combinational logic, changes in input signals are reserved for events occurring with respect to every element of the combinational logic circuit or of a partial circuit within the logic circuit according to demand timing. To inhibit wasteful processes, when the output value of a pertinent element or partial circuit is required by an element included in another partial circuit, i.e. when a demand has been sensed, only then are the events which occurred before evaluation.