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:
Jan. 24, 2006
Filed:
Mar. 08, 2002
Erdem Hokenek, Yorktown Heights, NY (US);
Eko Lisuwandi, Cambridge, MA (US);
David Meltzer, Wappingers Falls, NY (US);
Mayan Moudgill, White Plains, NY (US);
Victor V. Zyuban, Peekskill, NY (US);
Erdem Hokenek, Yorktown Heights, NY (US);
Eko Lisuwandi, Cambridge, MA (US);
David Meltzer, Wappingers Falls, NY (US);
Mayan Moudgill, White Plains, NY (US);
Victor V. Zyuban, Peekskill, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An ultra low power adder with sum synchronization which provides a power reduction method in the binary carry propagate adders by using a carry skip technique. The invention eliminates glitches at the adder outputs by preventing signal transitions at the sum outputs until the corresponding carry signals have reached their final values, which is achieved by adding a synchronization circuitry to the sum calculation path.