EP 4309379 A1 20240124 - MEMS SOUND TRANSDUCER HAVING RECESSES AND PROJECTIONS
Title (en)
MEMS SOUND TRANSDUCER HAVING RECESSES AND PROJECTIONS
Title (de)
MEMS-SCHALLWANDLER MIT AUSNEHMUNGEN UND AUSKRAGUNGEN
Title (fr)
TRANSDUCTEUR ACOUSTIQUE MEMS COMPORTANT DES ÉVIDEMENTS ET DES SAILLIES
Publication
Application
Priority
- DE 102021202573 A 20210316
- EP 2022056728 W 20220315
Abstract (en)
[origin: WO2022194880A1] Embodiments of the present disclosure describe MEMS sound transducers for generating sound, comprising an actuator which is separated from a surrounding structure by one or more gaps and is designed to perform a relative movement between the actuator and the surrounding structure. The MEMS sound transducer also comprises the surrounding structure, wherein: the actuator and the surrounding structure comprise a multiplicity of recesses and projections which are separated by one or more gaps; and the multiplicity of projections belonging to the actuator are located in the multiplicity of recesses belonging to the surrounding structure in mutual engagement and/or the multiplicity of projections belonging to the surrounding structure are located in the multiplicity of recesses belonging to the actuator in mutual engagement.
IPC 8 full level
H04R 1/22 (2006.01); B81B 3/00 (2006.01); H04R 17/00 (2006.01); H04R 19/02 (2006.01)
CPC (source: EP US)
H04R 1/22 (2013.01 - EP US); H04R 17/00 (2013.01 - EP); H04R 19/02 (2013.01 - EP); H04R 2201/003 (2013.01 - EP US)
Citation (search report)
See references of WO 2022194880A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021202573 B3 20220707; CN 117223294 A 20231212; EP 4309379 A1 20240124; US 2023421947 A1 20231228; WO 2022194880 A1 20220922
DOCDB simple family (application)
DE 102021202573 A 20210316; CN 202280022299 A 20220315; EP 2022056728 W 20220315; EP 22713670 A 20220315; US 202318466082 A 20230913