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:
Jul. 02, 2013
Filed:
Jun. 23, 2005
LI Ding, Sunnyvale, CA (US);
Peivand Fallah-tehrani, Camarillo, CA (US);
Alireza Kasnavi, Sunnyvale, CA (US);
Li Ding, Sunnyvale, CA (US);
Peivand Fallah-Tehrani, Camarillo, CA (US);
Alireza Kasnavi, Sunnyvale, CA (US);
Synopsys, Inc., Mountain View, CA (US);
Abstract
A model for a circuit cell used in timing and signal integrity analysis in an integrated circuit design is automatically generated. A behavioral model, such as a gate current model is used in which the current in the circuit cell is determined as a function of the input voltage and the output voltage of the circuit cell as well as the history of at least one of the current, voltage, and charge values of the circuit cell. For example, the current in the circuit cell may be a function of the history of the current, which may be calculated incrementally using recursive convolution at each time step when using the model.