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:
Nov. 26, 1996
Filed:
Jul. 21, 1993
Albert R Wang, Fremont, CA (US);
Richard Rudell, Los Gatos, CA (US);
Synopsys, Inc., Mountain View, CA (US);
Abstract
A universal synchronization element is used in a static timing verification system to represent selected combinational primitive elements, synchronous primitive elements and external primitive elements in the user's synchronous digital circuit. Each of these digital circuit element in a user's digital circuit design is represented by a corresponding universal synchronization element having a propagation time characteristic equivalent to the digital circuit element and a stable time characteristic equivalent to the digital circuit element. The propagation and stable time characteristics are defined in relation to a clock signal for the digital circuit element in the user's circuit that the universal synchronization element represents. The universal synchronization element does not a fixed timing relationship between the signals on its input and output terminals. The adjustment of stable interval starting and end times and the propagation interval starting and end times is sufficient to represent the timing characteristics of circuit element with the universal synchronization element of this invention.