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Class Information
Number: 342/86
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Return signal controls radar system > Transmitter > Signal phase or frequency other than pulse repetition frequency (prf) > Function of distance > With constant phase
Description: Subject matter wherein a constant phase relationship is maintained between the transmitted and returned signals.










Patents under this class:

Patent Number Title Of Patent Date Issued
7239262 Delivery of quasi-periodic pulses of EM energy utilizing the principle of beating-wave amplification Jul. 3, 2007
7080554 High-precision measuring method and apparatus Jul. 25, 2006
6856141 High-precision measuring method and apparatus Feb. 15, 2005
5617098 Multichannel radar system for motor vehicles Apr. 1, 1997
5125736 Optical range finder Jun. 30, 1992
4812035 AM-FM laser radar Mar. 14, 1989
4315260 Method and apparatus for measuring the distance between a primary station and a secondary station Feb. 9, 1982
4186397 Short range precision navigation and tracking system and method therefor Jan. 29, 1980
4107684 Phase locked detector Aug. 15, 1978
3973259 Device for indicating changes in the position of an object Aug. 3, 1976











 
 
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