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Class Information
Number: 342/401
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 > Receiver only > Vor
Description: Subject matter including receiver means operating at VHF and providing radial lines of position in any direction as determined by comparing the phase of the beacon signal, which is a variable modulated signal, with that of a nondirectional reference modulated signal, within the receiver.










Sub-classes under this class:

Class Number Class Name Patents
342/402 Doppler 18


Patents under this class:

Patent Number Title Of Patent Date Issued
7428450 Method and system for using a database and GPS position data to generate bearing data Sep. 23, 2008
6927550 Device and method used to automatically compensate for synchronous disturbance Aug. 9, 2005
6614396 Method and device to correct a variation in bearing measurement Sep. 2, 2003
6571171 Method and apparatus for graphically inserting waypoints for a flight management system May. 27, 2003
6437739 Methods and systems for monitoring multiple channels in a very high frequency omni-directional range receiver Aug. 20, 2002
6405107 Virtual instrument pilot: an improved method and system for navigation and control of fixed wing aircraft Jun. 11, 2002
5801659 Apparatus and method for coupling satellite navigation signals to a VOR system Sep. 1, 1998
5610600 Operation verification system and method for navigational instruments Mar. 11, 1997
5572427 Doppler position bearing angle locator Nov. 5, 1996
5305010 Crystal oscillator synchronized digital very high frequency omni-range (VOR) instrumentation unit Apr. 19, 1994
5185609 Signal monitor utilizing digital signal processing Feb. 9, 1993
4728957 Digital frequency discriminator, for extracting a sinusoidal signal Mar. 1, 1988
4692869 Aircraft navigational systems and methods for creating navigational guidepoints Sep. 8, 1987
4675614 Phase difference measurement system Jun. 23, 1987
4674051 Navigation point locating system Jun. 16, 1987
4654811 Adaptive filter for aircraft navigation receiver Mar. 31, 1987
4604625 Phase-locked digital very high frequency omni-range (VOR) receiver Aug. 5, 1986
4577194 Area navigational system Mar. 18, 1986
4567486 Phase difference measurement technique for VOR Jan. 28, 1986
4447814 Digital VOR bearing measurement apparatus May. 8, 1984
4212067 Navigating device Jul. 8, 1980
4104637 VOR phase monitoring system Aug. 1, 1978
4086593 AM removal and phaselock receiver Apr. 25, 1978
4074267 Device for numerically displaying VOR bearing Feb. 14, 1978
4061297 Approach range monitor Dec. 6, 1977
4041493 Elimination of extraneous modulation from VHF omnirange receiver Aug. 9, 1977
4035803 Circuit arrangement for determining the distance to a VOR transmitter station Jul. 12, 1977
4025923 Synchronous filter for VOR systems May. 24, 1977
4014025 Scalloping suppression system and method Mar. 22, 1977
3968494 Analyzer device for a VOR navigational receiver Jul. 6, 1976
3941983 OMEGA-VOR/DME positional data computer for aircraft Mar. 2, 1976











 
 
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