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Communications
Class Information
Number:
342/414
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
> Distinctive frequencies equi-signal type
Description:
Subject matter in which a beacon is caused to radiate along two fixed, angularly disposed, directional patterns with radiations in each pattern being given a modulation which is a distinctive frequency.
Sub-classes under this class:
Class Number
Class Name
Patents
342/415
Coded equi-signal (e.g., a and n type)
4
342/416
Sequentially effective reflectors
2
Patents under this class:
Patent Number
Title Of Patent
Date Issued
8207892
Technique for determining an angle of arrival in a communication system
Jun. 26, 2012
7636620
Signal distribution device operating in aircraft instrumental landing systems
Dec. 22, 2009
5045859
Phase reference navigation system and method
Sep. 3, 1991
4586049
Apparatus and method for use in instrument landing system localizer and glide-slope receivers for deriving course deviation information
Apr. 29, 1986
4414632
Automatic monitoring system for radio signal
Nov. 8, 1983
4195300
Device for simulating the locating signals of an ILS beacon
Mar. 25, 1980
3971026
Multiple beam glide slope radio navigation method with two classes of beams
Jul. 20, 1976
RE28762
Radio navigational aid with separate standard frequency signal
Apr. 6, 1976
3946387
Method and apparatus for adjustment of modulation course patterns in a navigational system
Mar. 23, 1976
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