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. 16, 2002
Filed:
Jul. 13, 2000
Applicant:
Inventors:
Anton Grabmaier, Bietigheim-Bissingen, DE;
Martin Osterfeld, Bietigheim-Bissingen, DE;
Assignee:
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 5/00 ; H02H 7/08 ; H02P 1/04 ; H02P 3/00 ; H02P 7/00 ;
U.S. Cl.
CPC ...
G05B 5/00 ; H02H 7/08 ; H02P 1/04 ; H02P 3/00 ; H02P 7/00 ;
Abstract
A device for monitoring the state of a window pane includes an optical emitter which emits a light beam on to the window pane. The device also contains an optical receiver which detects light of the light beam modulated by the window pane and, as a result, generates a received signal. The emitter and the receiver are arranged at a distance from the window pane. An evaluation circuit evaluates the received signal in order to determine the state of the window pane.