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:
Oct. 16, 2001
Filed:
Aug. 17, 2000
Roger P. Gregor, Endicott, NY (US);
Steven F. Oakland, Colchester, VT (US);
Toshiharu Saitoh, South Burlington, VT (US);
Sebastian T. Ventrone, South Burlington, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
This invention reduces power in flip flop apparatuses by providing flip flop apparatuses that have fewer clock trees than prior art flip flops yet still support some or all of the Level Sensitive Scan Design (LSSD) functionality. In preferred embodiments of the present invention, one clock tree is used instead of two to provide lower power, and less switching devices in clocks splitters are used, which also provides lower power. Additionally, a flushable single clock splitter is provided that allows one clock tree to be used up to the flushable single clock splitter and provides two clocks on the output of the flushable single clock splitter. This saves some power yet still allows for dual clock flip flop designs.