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:
Dec. 09, 1986
Filed:
Feb. 02, 1984
Applicant:
Inventors:
Donald Schuler, Wayland, MA (US);
Mahesh Doshi, Framingham, MA (US);
Assignee:
Prime Computer, Inc., Natick, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364578 ; 371 23 ; 364489 ;
Abstract
A digital system simulation apparatus and method enable better efficiency and precision of system simulation by operating in either a four signal-level mode or a nine signal-level mode, depending upon the particular circuitry being employed. All signal outputs are generated in the nine signal-level mode, however, when the output is directed to a gate level circuit element, the apparatus and method automatically mask the strength data in the output signal thereby providing the four signal-level mode of operation.