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:
Aug. 16, 2011
Filed:
Dec. 21, 2007
Jang Dae Kim, San Jose, CA (US);
Jang Dae Kim, San Jose, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
An analog system consists of a multitude of interconnected components. Design of such a system involves optimization of the component parameters to achieve a target behavior, collectively called specification. The present invention provides a generic cost function for analog design optimization. It also provides cost surface modeling to speed up the optimization. The cost function compares the behavior of a design to a quantitative specification, which can be a 'golden' reference behavior (specification), and measures the error cost, an index of the behavioral discrepancy. That is, the target behavior is explicitly embedded in the cost function. By using the cost function, one can readily qualify a design and thereby identify good/optimum designs. The cost surface modeling with a Latin Hypercube Sampling design-of-experiment provides a statistical mathematical approximation of the actual design's error cost surface, speeding up the optimization by replacing the costly simulation of the actual design with mere evaluation of the mathematical cost surface model expression.