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. 25, 1994
Filed:
Aug. 02, 1991
John W Goetz, Underhill, VT (US);
David J Hathaway, Underhill, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system for optimizing a logic network including expressing the logic network as an original graph having vertices, edges which connect the vertices and which represent connections in the logic network, and inversion markings for representing inverters in the logic network; determining a fundamental cycle(s) in the original graph; sorting the determined fundamental cycle(s) according to its parity; forming a final graph by processing the fundamental cycle(s) so as to optimize inverter placement therein while maintaining the parity thereof; comparing the inversion markings of the original and final graphs to determine a set of transformation locations in the logic network; and re-configuring the logic network in accordance with the determined transformation locations.