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. 27, 2010
Filed:
Jul. 18, 2005
Applicant:
Robert Wahl, Kings Park, NY (US);
Inventor:
Robert Wahl, Kings Park, NY (US);
Assignee:
Telephonics, Inc., Farmingdale, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 13/78 (2006.01);
U.S. Cl.
CPC ...
Abstract
An IFF interrogation system for use on an aircraft is described. The system transmits a signal from an interrogator to a transponder and from the transponder to the interrogator. The system includes a non-reciprocal IFF antenna that breaks either an uplink signal or a downlink signal at any given angle outside the main beam. The IFF transmitter transmits an Uplink Σ signal and an Uplink Δ signal to the IFF antenna.