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. 25, 2000
Filed:
Sep. 09, 1998
Ray Garcia, Boca Raton, FL (US);
Kendall Anthony Honeycutt, Boca Raton, FL (US);
Stephen Eugene Still, Lake Worth, FL (US);
International Business Machines Corp., Armonk, NY (US);
Abstract
A method and apparatus to automatically select operating voltages for a device. The method comprising the steps of: connecting a variable resistive network in series to a first side of a resistor for varying the current through the resistor; charging an inductor with a modulate pulse train, the inductor being connected to the second side of the resistor; outputting a voltage equal to the voltage across the resistor and a fixed reference voltage located at the first side of the resistor; determining if at least one designated processor pin is connected to ground; and varying the resistance of the resistive network if at least one pin is connected to ground so as to change the current flowing through the resistor, thereby changing the voltage across it.