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:
Jan. 28, 1997

Filed:

Jul. 17, 1995
Applicant:
Inventors:

Ullrich Grasmann, Dusseldorf, DE;

Michael Bollerott, Essen, DE;

Bertram Bresser, Dillingen/Diefflen, DE;

Frank Obergriesser, Spiesen, DE;

Assignee:

Kiekert Aktiengesellschaft, Heiligenhaus, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60R / ;
U.S. Cl.
CPC ...
340426 ; 340429 ; 340566 ; 367 93 ;
Abstract

A vehicle interior is monitored by storage of sample signals in a memory of a computer and comparison of at least one stored sample signal with a signal picked up on a detector of sound waves from the interior of the vehicle. An identity or similarity test is conducted by the computer and an alarm device is triggered when the predetermined degree of similarity is reached to signal an incursion.


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