Patent · US Active

Microelectromechanical loudspeaker

US10462580B2 · kind B2 · utility

0Cited by

1References

21Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Alfons Dehe · Reutlingen, DE
Yauheni Belahurau · Wien, AT
Manuel Dorfmeister · Wien, AT
Christoph Glacer · Munich, DE
Manfred Kaltenbacher · Wien, AT
Ulrich Schmid · Wien, AT
Michael Schneider · Wien, AT
David Tumpold · Tauberbischofsheim, DE

Key dates

Filing date	Mar 22, 2018
Grant date	Oct 29, 2019
Priority date	—
Expiry date	Mar 22, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2201/003
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A microelectromechanical loudspeaker may include: a plurality of elementary loudspeakers each including a drive unit and a diaphragm deflectable by the drive unit, and a controller configured to respectively supply control signals to the drive units. The drive units may be respectively configured to deflect the corresponding diaphragms according to the respective control signals supplied by the controller to generate acoustic waves. The control signal supplied to at least one control unit may have at least one local extremum and a global extremum of a curvature of the control signal with a highest absolute value of the curvature may be located at a position of the control signal preceding a position of the at least one local extremum of the control signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.