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:
Dec. 31, 2013
Filed:
Jun. 19, 2012
John J. Bergkvist, Jr., Williston, VT (US);
Carrie E. Cox, Apex, NC (US);
Todd E. Leonard, Williston, VT (US);
John J. Bergkvist, Jr., Williston, VT (US);
Carrie E. Cox, Apex, NC (US);
Todd E. Leonard, Williston, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A source-series terminated ('SST') driver circuit that includes: one or more data signal inputs; one or more control signal inputs; a driver output; and a plurality of driver cells, the driver cells coupled in parallel to one another, outputs of the driver cells coupled together to form the driver output of the SST driver circuit, where output resistance of the SST driver circuit varies in dependence upon activation of one or more of the parallel driver cells, activation of each driver cell controlled by control signals received at the control signal inputs.