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Class Information
Number: 342/413
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 > Fixed course or bearing indicating > Localizer transmitter or receiver
Description: Subject matter including transmission or reception of signals for the lateral guidance of aircraft with respect to the center line of a runway.










Patents under this class:

Patent Number Title Of Patent Date Issued
8239077 Method and device for detecting noise on a guide signal of LOC type received by an aircraft Aug. 7, 2012
8077089 Precision geolocation of moving or fixed transmitters using multiple observers Dec. 13, 2011
8054181 Terrestial-signal based exclusion zone compliance Nov. 8, 2011
7898409 Circuit for exclusion zone compliance Mar. 1, 2011
7808432 Systems and methods for a high-precision time of arrival ultra-wideband positioning system Oct. 5, 2010
7636620 Signal distribution device operating in aircraft instrumental landing systems Dec. 22, 2009
7592816 Localizer cable fault analyzer Sep. 22, 2009
7522977 Method and a device for assisting the piloting of an aircraft during an approach phase Apr. 21, 2009
7409272 Systems and methods for removing undesired signals in instrument landing systems Aug. 5, 2008
6570531 Satellite navigation receiver designed for compatibility with aircraft automatic landing systems May. 27, 2003
6414632 Monitoring of the phase angle of course and clearance signals in an instrument landing system Jul. 2, 2002
6348891 Far field monitor apparatus Feb. 19, 2002
6111543 Method and device for analysing radio navigation signals Aug. 29, 2000
5909193 Digitally programmable radio modules for navigation systems Jun. 1, 1999
5815538 Method and apparatus for determining location of a subscriber device in a wireless cellular communications system Sep. 29, 1998
5689273 Aircraft surface navigation system Nov. 18, 1997
5532701 Arrangement for comparing two temporally separated bursts of signal at two different frequencies Jul. 2, 1996
5483245 ILS signal analysis device and method Jan. 9, 1996
5323165 Two-frequency transmitting apparatus with tone-modulation phasing for an instrument landing system Jun. 21, 1994
5216611 Integrated enroute and approach guidance system for aircraft Jun. 1, 1993
5206654 Passive aircraft monitoring system Apr. 27, 1993
5153587 Monitor for instrument landing system Oct. 6, 1992
5101207 MLS-type landing system with centralized means of surveillance Mar. 31, 1992
5097266 MLS-type landing system with centralized microwave generation Mar. 17, 1992
4912479 Microwave landing system Mar. 27, 1990
4912480 Offset phase-center antenna for aircraft landing system Mar. 27, 1990
4907005 Radiofrequency power distributor for instrument landing system localizer antenna arrays Mar. 6, 1990
4866450 Advanced instrument landing system Sep. 12, 1989
4609921 Digital modulation depth detector Sep. 2, 1986
4605930 Integral monitor for ILS localizer Aug. 12, 1986
4415902 Array for reducing the number of antenna elements for radiating instrument landing system localizer signals Nov. 15, 1983
4415899 Monitor for an instrument-landing system Nov. 15, 1983
4399425 Circuit for operating a flight navigation indicator Aug. 16, 1983
4167735 Aircraft orientation determining means Sep. 11, 1979
4107688 Monitor for localizer antenna arrays Aug. 15, 1978
4101892 Localizer antenna array for use with localizer transmitters operating at one carrier frequency Jul. 18, 1978
4093952 Guidance systems Jun. 6, 1978
4068236 Monitor for two frequency localizer guidance system Jan. 10, 1978
4032920 Two-frequency instrument landing system with integral monitor Jun. 28, 1977
4012739 Instrument landing system (ILS) with simplified transmitter Mar. 15, 1977
3946387 Method and apparatus for adjustment of modulation course patterns in a navigational system Mar. 23, 1976











 
 
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