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Class Information
Number: 342/388
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > With transmisson of bearing or position determinative signals > Iso-chronic type > Loran
Description: Subject matter wherein the radiating stations comprise a master and two or more slave stations.










Sub-classes under this class:

Class Number Class Name Patents
342/391 Loran-a 3
342/389 Loran-c 61


Patents under this class:

Patent Number Title Of Patent Date Issued
8159164 Variable-delay-time control system for a motor Apr. 17, 2012
8120533 Method and system for deriving location information from utility lines Feb. 21, 2012
7742774 Location-based text messaging Jun. 22, 2010
7391369 Method of and apparatus for eliminating quadrature-generated signals in magnetic cross-loop antennas Jun. 24, 2008
6452547 METHOD OF AND APPARATUS FOR EXPANDING THE DIGITAL BIT RATE POTENTIAL FOR COMMUNICATION ADDED TO LORAN-C RADIO NAVIGATION PULSE TRAINS AND THE LIKE, WITHOUT AFFECTING THE NAVIGATION CAPABILITY Sep. 17, 2002
6421628 Signal handling device Jul. 16, 2002
5323306 Navigation system for converting bearing to waypoint data from a universal navigation system to signals usable by an omni bearing selector Jun. 21, 1994
5245659 Constant ratio coding for multipath rejection and ECCM enhancement Sep. 14, 1993
4893127 Radar navigation system Jan. 9, 1990
4792806 Lightning position and tracking method Dec. 20, 1988
4742357 Stolen object location system May. 3, 1988
4584580 Apparatus for rejecting jamming waves Apr. 22, 1986
4543580 System for lightning ground stroke position by time of arrival discrimination Sep. 24, 1985
4472720 Area navigational system using geosynchronous satellites Sep. 18, 1984
4438439 Self-survey means Mar. 20, 1984
4396918 Low-frequency radio navigation system Aug. 2, 1983
4059801 Apparatus for degrading Q in a high-Q RF pulse transmitting system and the like Nov. 22, 1977
4024383 Method and system for navigation employing incremental range difference May. 17, 1977
4001598 Sequential power supply and method for RF pulse generation Jan. 4, 1977
3936762 Digital phase-lock loop systems for phase processing of signals Feb. 3, 1976











 
 
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