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:
Mar. 23, 2004
Filed:
Jan. 10, 2002
Applicant:
Inventor:
Guy Harlan Humphrey, Ft. Collins, CO (US);
Assignee:
Agilent Technologies, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A03K 1/9003 ;
U.S. Cl.
CPC ...
A03K 1/9003 ;
Abstract
A method and circuit for controlling the slope of a transitioning signal on a transmission line of integrated circuit is achieved using stepwise pull-down impedance reduction/augmentation. Over a series of sequentially ordered steps, a predetermined decreasing (or increasing) impedance is connected between the transmission line and voltage source. Using certain predetermined impedance values in order, a linear slew rate on the output signal is achievable. Adjusting the time delay between each step allows the slope of the linear slew rate to be adjusted.