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:
Oct. 27, 2015
Filed:
Sep. 16, 2014
Applicant:
Cadence Design Systems, Inc., San Jose, CA (US);
Inventors:
Assignee:
CADENCE DESIGN SYSTEMS, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
G06F 17/505 (2013.01); G06F 2217/78 (2013.01); G06F 2217/84 (2013.01);
Abstract
An apparatus and method are provided for removing redundant logic in a logic design of an integrated circuit (IC) design. The apparatus and method optimizes the integrated circuit by selecting stuck-at constant registers in the logic design, propagating a constant output value of the stuck-at constant registers across output nets of the stuck-at constant registers, identifying redundant logic in the logic design based on the propagation of the constant input value across the output net of the stuck-at constant register, and removing the redundant logic in the logic design.