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3144646
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Patent Grant
3144646
References
Source
Patent Number
3,144,646
Date Filed
Not available
Date Issued
Tuesday, August 11, 1964
59 years ago
CPC
G01S13/50 - Systems of measurement based on relative movement of target
G01S1/38 - using comparison of (1) the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an aerial moving, or appearing to move, in a cyclic path with (2) the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the aerial
G01S13/42 - Simultaneous measurement of distance and other co-ordinates
US Classifications
342 - Communications: directive radio wave systems and devices
343 - Communications: radio wave antennas
367 - Communications, electrical: acoustic wave systems and devices
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