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:
Nov. 26, 2019
Filed:
Dec. 26, 1979
Thomas H. Crocker, Burlington, MA (US);
Daniel O. Eyring, Acton, MA (US);
Richard A. Beckerleg, Boxford, MA (US);
Barry N. Levitt, Framingham, MA (US);
Thomas H. Crocker, Burlington, MA (US);
Daniel O. Eyring, Acton, MA (US);
Richard A. Beckerleg, Boxford, MA (US);
Barry N. Levitt, Framingham, MA (US);
Raytheon Company, Waltham, MA (US);
Abstract
An infrared signal processor is provided wherein infrared energy from objects on an area of the ground is directed towards a plurality of detectors disposed in a missile. The plurality of detectors scan the area of the ground and electrical signals produced by the detectors in response to the sensed infrared energy are processed to detect the presence of a ground target, typically a tank. Potential targets are detected, that is, are distinguished from ground clutter, by determining whether electrical pulses produced by the detectors in response to the sensed infrared energy have a proper pulse duration which is consistent with the width of a tank target. In particular, the electrical pulses are passed through a bandpass filter to filter signals produced by both ground clutter infrared energy and noise.