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:
Nov. 01, 2005
Filed:
Feb. 14, 2002
Applicant:
Parvesh Swami, New Delhi, IN;
Inventor:
Parvesh Swami, New Delhi, IN;
Assignee:
STMicroelectronics Ltd., Uttar Pradesh, IN;
Primary Examiner:
Int. Cl.
CPC ...
G06F007/38 ;
U.S. Cl.
CPC ...
Abstract
A look-up table apparatus is provided for performing two-bit arithmetic operation including carry generation. The look-up table is modified to perform two concurrent combinatorial functions, or one function for an increased number of inputs. The look-up table can implement two full adders or subtractors, or two-bit counters, for example. One portion of the modified look-up table provides two bits of a sum output, and another portion of the modified table provides a fast carry out signal for application to a next stage of an adder/subtractor/counter.