Patent ID: 11877119
Assignee: SONICEDGE LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 4:
5. A speaker device comprising:
a MEMs device wherein the MEMs device includes at least an ultrasound source, including a membrane; a shutter; and a time varying acoustic coupler; and
a driving device in communication with the MEMs device and configured to operate the ultrasound source and time varying acoustic coupler; wherein the time varying acoustic coupler is configured to be electrically activated to operate at its mechanical resonance and generate an audio signal,
wherein the driving device includes at least:
a charge pump;
a processor unit;
a communication unit; and
two or more switches;

wherein at least one switch connects the charge pump to the membrane and at least a second switch connects the charge pump to the shutter; and
wherein the processor unit operates the switches to generate a modulated ultrasound signal from the membrane and wherein the time varying acoustic coupler is configured to be electrically activated to operate at its mechanical resonance and generate an audio signal.