Patent · US Expired

Device for monitoring the state of a window pane

US6373215B1 · kind B1 · utility

4Cited by

8References

20Claims

0Family size

Assignee

ITT MANUFACTURING ENTERPRISES LLC · US

Inventors

Anton Grabmaier · Bietigheim-Bissingen, DE
Martin Osterfeld · Bietigheim-Bissingen, DE

Key dates

Filing date	Jul 13, 2000
Grant date	Apr 16, 2002
Priority date	—
Expiry date	Jul 13, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S318/02
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.