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Class Information
Number: 342/404
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 > Tacan > Vor
Description: Subject matter including means operating at VHF and providing radial lines of position in any direction as determined by comparing within the receiving equipment the phase of variably modulated beacon signal with that of a modulated nondirectional reference signal.










Sub-classes under this class:

Class Number Class Name Patents
342/405 Doppler 24


Patents under this class:

Patent Number Title Of Patent Date Issued
8179318 Precise position determination using VHF omni-directional radio range signals May. 15, 2012
8059030 Method and system for using a database and GPS position data to generate bearing data Nov. 15, 2011
7489274 System and method for generating a very high frequency omnidirectional range signal Feb. 10, 2009
7428450 Method and system for using a database and GPS position data to generate bearing data Sep. 23, 2008
6111543 Method and device for analysing radio navigation signals Aug. 29, 2000
5305010 Crystal oscillator synchronized digital very high frequency omni-range (VOR) instrumentation unit Apr. 19, 1994
4843399 Portable navigational communications transceiver Jun. 27, 1989
4674051 Navigation point locating system Jun. 16, 1987
4591861 Doppler VOR May. 27, 1986
4567486 Phase difference measurement technique for VOR Jan. 28, 1986
4484196 Antenna drive arrangement for very high frequency omidirectional range navigation system Nov. 20, 1984
4220994 General purpose navigation aid device Sep. 2, 1980
4215346 Navigation unit having time shared operation Jul. 29, 1980
4197542 Radio navigation system Apr. 8, 1980
4186399 Goniometer circuit for VOR system Jan. 29, 1980
4069412 Area navigation system Jan. 17, 1978
4017861 Ground station for a VOR navigation system with means for identifying spurious responses at a remote VOR receiver Apr. 12, 1977
3995236 Double sideband modulator Nov. 30, 1976
3979751 Transmission device of a radiographic navigation system Sep. 7, 1976
3953855 Navigational guidance method for a plurality of vessels Apr. 27, 1976











 
 
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