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:
Aug. 25, 2009
Filed:
Nov. 02, 2006
Applicant:
Richard Deken, Madison, MS (US);
Inventor:
Richard Deken, Madison, MS (US);
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method () for producing a reference signal is provided. The method includes supplying () a first current to a diode, sampling () a first voltage across the diode, supplying () a second current to the diode, sampling () a second voltage across the diode, converting () the first voltage and the second voltage to a first digital value and a second digital value, and determining () a digital reference value from the first digital value and the second digital value. The first voltage is based on the first current, and the second voltage is based on the second current.