Patent 7945890 was granted and assigned to Cadence Design Systems on May, 2011 by the United States Patent and Trademark Office.
A method for registering constraints for EDA (Electronic Design Automation) of an IC (Integrated circuit) includes: associating a constraint with values for constraint identification that identify the constraint in an IC design; associating the constraint with values for constraint relationships that relate the constraint to at least one EDA application; saving the constraint identification values and the constraint relationship values in a constraint registry element; and providing an interface to a user for accessing values of the constraint registry element.