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. 17, 2012
Filed:
Dec. 01, 2008
Chaiyasit Manovit, Mountain View, CA (US);
Sridhar Narayanan, Cupertino, CA (US);
Sridhar Subramanian, Cupertino, CA (US);
Chaiyasit Manovit, Mountain View, CA (US);
Sridhar Narayanan, Cupertino, CA (US);
Sridhar Subramanian, Cupertino, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
Embodiments of the present invention provide methods and systems for verifying functional equivalence of a power optimized design and its original, unoptimized design (referred to as the golden design) using combinational equivalency checking. Due to some inherent limitations which make combinational equivalency checkers unable to prove equivalency of the two designs in a single step, a series of intermediate design transformations is introduced. These transformations are dependent on the techniques used in generating the power optimized design from the golden design, and may be generically described in a transformation language that provides the necessary constructs to specify an entire set of valid structural modifications. The equivalency between the golden design and the power optimized design can then be verified by checking the golden design and the first design transformation, and then by checking between each pair of the plurality of intermediate design transformations, and finally by checking the last design transformation and the power optimized design.