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Class Information
Number: 434/8
Name: Education and demonstration > Detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy > Sonar > Simulation of doppler shift of echo
Description: Subject matter relating to an imitation of the effect of the direction of movement of a distant object upon the frequency of sound waves reflected therefrom.

Patents under this class:

Patent Number Title Of Patent Date Issued
7734245 Statistical-deterministic approach to natural disaster prediction Jun. 8, 2010
4986755 Acoustic target doppler simulator Jan. 22, 1991
4954996 Navigation sonar system dockside simulator Sep. 4, 1990
4626217 Broadband doppler simulator Dec. 2, 1986
4306301 Wide band frequency shifter in variable amounts Dec. 15, 1981
3936958 Sonar reverberation simulation Feb. 10, 1976

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