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.

Date of Patent:
Jun. 15, 2010

Filed:

Mar. 22, 2006
Applicants:

Sabyasachi Das, Santa Clara, CA (US);

Jean-charles Giomi, Menlo Park, CA (US);

Inventors:

Sabyasachi Das, Santa Clara, CA (US);

Jean-Charles Giomi, Menlo Park, CA (US);

Assignee:

Cadence Design Systems, Inc., San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In one embodiment of the invention, an integrated circuit (IC) design tool is provided that has a sum-of-products (SOP) synthesizer. The SOP synthesizer receives expected arrival times of signals including partial product terms of each bit-vector of a SOP functional block, a comparison gate delay, and a register-transfer-level (RTL) netlist in order to synthesize a gate-level netlist of the SOP functional block. The SOP synthesizer includes software modules to synthesize a partial products generator, a partial product reduction tree, and an adder. The synthesis of the partial product reduction tree is responsive to a comparison gate delay and the expected arrival times of the partial product terms in each bit vector.


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