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. 03, 1990
Filed:
Apr. 01, 1988
Applicant:
Inventors:
Reiner Quad, Taunusstein, DE;
Karlheinz Storck, Lorch, DE;
Assignee:
Heimann GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
250349 ; 250342 ;
Abstract
An infrared detector includes process and circuitry for detecting the direction of movement of a radiation source with a predetermined resolution. Four radiation-sensitive elements defining a square are provided in the detector, each connected to an evaluation circuit which compares the output signals from the elements. A normalized pulse is generated upon the occurrence of the maximum of the output signal from each of the elements. The direction of movement of the radiation source is identified from the chronological sequence and spacing of the normalized pulses.