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:
Apr. 01, 2003
Filed:
Oct. 23, 2001
Applicant:
Inventors:
Kenneth J. Goodnow, Essex, VT (US);
Riyon Harding, Richmond, VT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 1/716 ;
U.S. Cl.
CPC ...
H03K 1/716 ;
Abstract
An impedance controller comprises impedance control logic outputting an adjustable impedance and a comparator comparing the adjustable impedance with a reference voltage. The impedance control logic recalibrates said adjustable impedance only when said comparator indicates a change in impedance.