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US 6,636,125 B2Granted
Modulation device of the pulse width of very high-frequency signals
AssigneeKoninklijke Philips Electronics N.V.
InventorStephane Bouvier
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AssigneeKoninklijke Philips Electronics N.V.
InventorStephane Bouvier
Estimating the term…
The present invention relates to a modulation device MD, which is designed to produce an output signal Vout comprising a succession of pulses. According to the invention, a device of this type includes: two transistors T1 and T2, which are arranged as a differential pair; a capacitive element C, which is connected between the two transistors T1 and T2; adjusting means LC1, LC2, UC1, UC2, in order to adjust the potential of at least one of the terminals of the capacitive element C; and comparing means CMP, which supply the output signal Vout, which is representative of the sign of the voltage Vc, which is present at the terminals of the capacitive element C. By means of a simple and substantially analog structure, the invention permits rapid, flexible control of the width of the pulses of the output signal Vout.
A modulation device, which is designed to receive an input signal comprising a succession of pulses with a predetermined width, and to produce an output signal comprising a succession of pulses with an adjustable width, the device including:
Dependencies are inferred from the claim text.