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:
Sep. 25, 2007
Filed:
May. 25, 2001
Applicants:
Werner Pöchmüller, Hildesheim, DE;
Goetz Kuehnle, Hemmingen, DE;
Inventors:
Werner Pöchmüller, Hildesheim, DE;
Goetz Kuehnle, Hemmingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
To determine the visual range of, in particular, a driver in a motor vehicle, a contrast ((c(x), c(x)) is measured from at least two measuring positions (x, x) of a measuring device situated at different distances from the object, and the ratio of the measured contrast values is converted to a visual range (δ), using the difference of the distances of the measuring positions from the object.