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:
Oct. 15, 1991
Filed:
Nov. 07, 1989
Randolph S Carlson, Carson City, NV (US);
OTL, Inc., Carson City, NY (US);
Abstract
A device and method for detecting the presence of nearby aircraft which have a strobe-type, anticollision signalling device with respect to a monitoring aircraft. Incoming radiation is detected, including (i) background radiation (ii) pulse-like radiation occurring in random manner, and (iii) pulse-like radiation characterized by uniform periodic pulse rate. Background radiation is filtered, leaving a signal representing pulse-like radiation occurring either in random manner and/or periodic regularity. Those signals having periodic regularity are identified and recorded as pulse trains which provide the basis for generating an alarm indicating detection of a strobe anticollision device. Additional devices and procedures are applied with respect to the invention to define its accuracy and economy as part of a passive optical traffic alert system for small aircraft.