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:
Jun. 01, 1982
Filed:
Jun. 16, 1980
Gunter Hofgen, Kornwestheim, DE;
International Standard Electric Corporation, New York, NY (US);
Abstract
Monitoring apparatus for a time reference scanning-beam microwave landing system which supplies directional information throughout a 40.degree. to 60.degree. landing approach sector. Several transponders are provided within the radiation field of the directional antenna of the landing system, these being directionally separated. Each transponder retransmits a part of the beam passing by it back to the directional antenna of the microwave landing system. The retransmitted signals are in converted form and are processed by the MLS system similar to radar echo signals, but are modulated at different discreet frequencies for identification. Errors are detected by comparing received transponder signals with locally generated reference signals at the MLS equipment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile