Matches 1 - 31 out of 31


Match Document Document Title
8686913 Differential vector sensor  
The present invention is directed to a system that includes a sensor having a plurality of antenna elements arranged in a three-dimensional array. None of the plurality of antenna elements is...
7755534 Radar sensor for receiving radar wave while judging existence of wave attenuator  
A radar sensor receives a radar wave signal through a radome in each of antennas while judging existence of an attenuating thing in a detecting unit. This unit extracts a maximum level channel...
4475106 High sensitivity portable radio direction finder  
A simple inexpensive, very effective high to ultra high frequency radio direction finder is disclosed utilizing two parallel antenna units with switching means for alternately connecting the...
4263597 Nondisruptive ADF system  
An automatic radio direction finding (ADF) system having inputs for four quadrature antennas each having a cardioid pattern. Each input is amplitude modulated in quadrature and then combined in a...
4177467 Waveguide receiving antenna  
An antenna for the short-range reception of an emitted signal comprises at least two independent sectors for the coarse location of an emission-beam source in two predetermined directions. Each...
3965473 Direction finders  
A direction finder having an antenna system adapted to receive signals and provided with a right-hand and a left-hand lobe system. By coupling means said lobe systems can be made alternately...
3936832 System to process antenna beams to obtain the angular location of target with high resolution and accuracy  
The system comprises a set of 16 antennas disposed so that their beams ovap to cover completely some sector of area; a mixing system to provide a plurality of I.F. signals; a first detector for...
3795001 DIRECTION FINDER WITH BEARING SENSE DETERMINATION  
A dual orthogonal loop antenna direction finding system having corresponding dual receiver channels and a reference (sense) antenna. The equipment is programmed through at least "Updating,"...
3344430 Signal azimuth detector  
3170158 Multiple beam radar antenna system  
3038122 Passive detector with ambiguous pulse eliminator  
3016531 Antenna distribution system  
871,735. Radio-frequency input and output couplings for aerials; combined radio receiving and transmitting systems. SPERRY RAND CORPORATION. March 9, 1956 [March 14, 1955], No. 7549/56. Classes...
2489222 Electric means for indicating the altitude and position of a craft when landing on arunway  
This invention relates to apparatus for aiding the landing of aircraft, and more particularly to apparatus which determines the altitude and position of aircraft in flight relative to an airport...
2406858 Visual position and phase sense indicator  
Our invention more particularly relates to means and systems for providing an indication of the displacement and phase senseor direction of a displaceable member relative to a reference element or...
2365347 Radio direction indicator system  
550,131. Automatic control systems. LEAR AVIA, Inc. June 20, 1940, No. 10644. Convention date, July 27, 1939. [Class 38 (iv)] [Also in Groups XL and XXIV] In a system in which a loop aerial,...
2327641 Radio compass  
My invention relates broadly to radio compasses and more particularly to a circuit arrangement for a composite visual and aural radio compass system. One of the objects of my invention is to...
2323337 Radio navigation system  
This invention relates to navigatior al indication systems, and more particularly relates to a novel composite indicator directly solving and simplifying heretofore complex problems in aircraft...
2321478 Ultra-high-frequency carriersignal translating system  
The present invention relates to ultra-highfrequency signal-translating systems and, particularly, to systems of this nature which are adapted to translate two carrier signals having a...
2318338 Radio direction finder  
The present invention relates to improvements in radio direction finders and methods of operating the same, more particularly to direction finding apparatus of the type disclosed in previous...
2317922 Directional radio system  
This invention relates to radio direction finding systems and more particularly to automatic radio direction indicators, being a continuationin-part of my copending application "Automatic radio...
2234980 Radio location finder  
This invention relates to a radio location finder for use on ships such as air craft, ocean going vessels and the like. The purposes of the invention are to provide for determining the direction...
2220904 Radio compass system  
My invention relates broadly to radio compass systems and more particularly to an improved circuit arrangement for the visual and audible indication of direction in a radio compass systerm. One of...
2215781 Radio direction finder and course indicating device  
484,590. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. Nov. 6, 1936, No. 30336. [Class 40 (v)] In a course-indicating system, currents from a directional...
2214342 Position finding  
My invention relates to a radio positioning method and mechanism. An object of my invention is to provide a method for detecting visually the position of moving bodies such as ships or airplanes...
2190038 Position and direction determining system  
My invention relates to a device for visually indicating the bearings of an aircraft in flight, and more particularly to a device conveying the information as to the instantaneous position of the...
2170835 Navigational system  
447,273. Automatic control of a body in motion. RADIO NAVIGATIONAL INSTRUMENT CORPORATION, 270, Madison Avenue, New York, U.S.A. Nov. 12, 1934, No. 32555. Convention date, Nov. 10, 1933. [Class 38...
2104075 Radio direction finder  
This invention relates to directional radio receiving installations suitable for use for position.firiding and navigation purposes generally. -The object of:the invention is to provide a -5...
2061737 Directional receiving system  
The present invention relates to receiving systems, more particularly directional receiving systems for determining the direction from which radio signals are received or for obtaining sensitivity...
1960297 Radio route indicators for airplanes  
1940547 Radio direction indicating device  
0650255 SPACE TELEGRAPHY.  

Matches 1 - 31 out of 31