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:
Nov. 12, 2002
Filed:
Aug. 18, 2000
Applicant:
Inventor:
Paul Frederick Luther Weindorf, Novi, MI (US);
Assignee:
Visteon Global Tech, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 4/014 ;
U.S. Cl.
CPC ...
H01J 4/014 ;
Abstract
A light sensor assembly and a method for detecting ambient light which logarithmically amplifies a first signal which is representative of the certain amount of sensed light and a second offset signal and which adds the logarithmically amplified signals to a voltage signal, thereby allowing an accurate signal to be produced which indicative of the sensed amount of light by use of only a positive type electrical power supply and which is effective to allow the output signal to fall within the relatively narrow operating range of a cost effective digital to analogue converter.