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Class Information
Number: 342/144
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Determining distance > With pulse modulation > Combined with determining direction > With crt display > Ppi type
Description: Subject matter wherein the display represents the signal as a bright spot, with range indicated by the distance of the spot from the center of the screen and the bearing by the radial angle of the spot.










Patents under this class:

Patent Number Title Of Patent Date Issued
5455591 Precision high speed perspective transformation from range-azimuth format to elevation-azimuth format Oct. 3, 1995
4596987 PPI display apparatus Jun. 24, 1986
4281327 Range corrector circuit for a bistatic passive radar display Jul. 28, 1981
4023166 High power low loss nonresonant filter system May. 10, 1977











 
 
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