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.

Date of Patent:
Feb. 19, 2008

Filed:

Mar. 13, 2006
Applicants:

Anton Rüttiger, Wildflecken, DE;

Jürgen Nauth, Burkardroth, DE;

Inventors:

Anton Rüttiger, Wildflecken, DE;

Jürgen Nauth, Burkardroth, DE;

Assignee:

Preh GmbH, Bad Neustadt/Saale, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 7/00 (2006.01); F24F 3/14 (2006.01); H05B 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A measuring device for detecting a humidity and temperature of a surface of a glass pane facing an interior of a vehicle. The measuring device includes at least one humidity sensor and at least one temperature sensor jointly arranged on the surface of the glass pane, an evaluation unit connected downstream of the humidity and temperature sensors, and a signal conversion and linking unit arranged between the humidity and temperature sensors and the evaluation unit. Further, the converting and linking unit generates a rectangular wave-shaped signal having at least two different impulse lengths, each impulse length being a measure of a detected humidity and temperature.


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