Band-pass sigma-delta modulator and uses of sigma delta modulator for converting, detecting and producing signals
AssigneeCommissariat a l'Energie Atomique
InventorsElisabeth Orsier, Marc Belleville, Cyril Condemine
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Abstract
A sigma-delta modulator comprising: at least one resonator (100a, 110b), a converter (120) to convert an analogue signal from the resonator into a digital signal with time information, and a feedback loop connecting an output of the converter to an excitation input of the resonator. According to the invention, at least one resonator in the modulator is chosen from among the group comprising mechanical, acoustic, electromechanical, electrostatic, optical and chemical resonators. Application to analogue-digital conversion, signal detection and signal generation.
Claims15
Sigma-delta modulator comprising:
- at least one resonator (110, 110a, 110b),
- a converter (120) to convert an analogue signal from the resonator into a digital signal with time information, and
- a feedback loop (140) connecting an output of the converter to an excitation input of the resonator, characterised in that at least one resonator (110, 110a) in the modulator is chosen from among the group comprising mechanical, acoustic, electromechanical, electrostatic, optical and chemical resonators.
Sigma-delta modulator, in which the resonator has a mechanical, optical or acoustic excitation input and in which the feedback loop is connected to the excitation input through a signal electromechanical interface, a signal electro acoustic interface, or a signal electro-optic interface, respectively.
Dependencies are inferred from the claim text.