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Class Information
Number: 342/430
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > Direction-finding receiver only > With continuously movable antenna pattern > Including plural moving antennas
Description: Subject matter including more than one antenna that changes position, usually rotating about an axis.










Patents under this class:

Patent Number Title Of Patent Date Issued
7848748 Method for characterising emitters by the association of parameters related to the same radio emitter Dec. 7, 2010
7843385 Antenna device Nov. 30, 2010
7756471 Systems and methods for multi-element antenna arrays with aperture control shutters Jul. 13, 2010
7423589 Method for localising at least one emitter Sep. 9, 2008
6914559 Direction finding method and system using digital directional correlators Jul. 5, 2005
6861983 Method and apparatus for reducing electromagnetic interference and jamming in GPS equipment operating in rolling environments Mar. 1, 2005
6859172 System and method for locating a mobile phone Feb. 22, 2005
6759982 Radio direction and position finding apparatus Jul. 6, 2004
6646602 Technique for robust characterization of weak RF emitters and accurate time difference of arrival estimation for passive ranging of RF emitters Nov. 11, 2003
6373435 Radio direction and position finding apparatus Apr. 16, 2002
6344797 Digital electronic locator Feb. 5, 2002
5296863 Beam compression process for antenna pattern Mar. 22, 1994
5237333 Method and apparatus for ambiguity resolution in a rotating interferometer wheel Aug. 17, 1993
5218361 Interferometer ambiguity resolution using missile roll Jun. 8, 1993
5198822 Method and apparatus for determining the angle of arrival of a radar signal at a spinning interferometer Mar. 30, 1993
5134409 Surveillance sensor which is provided with at least one surveillance radar antenna rotatable about at least one first axis of rotation Jul. 28, 1992
5099248 Transmission signal direction finding apparatus and method Mar. 24, 1992
4983983 Semi-automatic direction finding set Jan. 8, 1991
4845502 Direction finding method and apparatus Jul. 4, 1989
4633261 Method and apparatus for correlating target track data Dec. 30, 1986
4626861 Two angle range and altitude measurement system and methods Dec. 2, 1986
4621267 Bearing intersection deghosting by altitude comparison system and methods Nov. 4, 1986
RE28725 Satellite and space communications systems Feb. 24, 1976











 
 
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