Patent classifications
G
PHYSICS
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G05
CONTROLLING; REGULATING
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G05B
CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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G05B11/26
in which the output signal is a pulse-train
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G05B11/28
using pulse-height modulation; using pulse-width modulation
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