US 2018/0224487 A1 · SIGNAL PROCESSOR

Abstract

To realize a compact device that detects phase or controls phase or an amplitude with high sensitivity, a signal controller includes: a linear conductor having a first end fixed to a negative electrode and a second end serving as a free end; a positive electrode facing the free end with a small gap therebetween; a first signal source that applies a voltage between the negative electrode and the positive electrode, the voltage applied being variable; a driving electrode that applies an electric field to a space around the conductor, the electric field having a component perpendicular to the lengthwise direction of the conductor; and a second signal source that applies an AC signal to the driving electrode. The signal processor can be a device for controlling or modulating phase or amplitude.

Claims21

Dependent claims

1-20. (canceled)

A signal processor for processing an AC signal, comprising:

a support conductor;
a linear conductor having a first end fixed to the support conductor, the linear conductor vibrating in response to an AC electric field so as to have a displacement component perpendicular to a lengthwise direction of the linear conductor;
a control electrode that applies the AC electric field to the linear conductor, the AC electric field having a component perpendicular to the lengthwise direction of the linear conductor;
a detection electrode that detects a vibration signal generated as a result of the vibration of the linear conductor;
a signal source that applies an AC signal to the control electrode;
and
an output unit that uses, as a processed signal obtained from the AC signal, information about the amplitude of the vibration signal detected by the detection electrode or the phase of the vibration signal.

4 more elements

Dependencies are inferred from the claim text.

Signal processor

Life of this patent

Signal processor

Life of this patent

Abstract

Claims21