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Class Information
Number: 342/391
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 > Loran-a
Description: Subject matter wherein the Loran system provides time-difference measurement by matching the leading edges of the pulses (usually with an oscilloscope).

Patents under this class:

Patent Number Title Of Patent Date Issued
8159164 Variable-delay-time control system for a motor Apr. 17, 2012
4234883 Noise adaptive correlator Nov. 18, 1980
4019183 Apparatus for Loran simulation Apr. 19, 1977

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