公开(公告)号：EP4425962A1

公开(公告)日：2024-09-04

申请号：EP24158761.7

申请日：2024-02-21

Applicant: Infineon Technologies AG

Inventor： WIESBAUER, Andreas ,  CEBALLOS, Jose Luis ,  CICIOTTI, Fulvio ,  MUEHLBACHER, Benno ,  TZITZILAKI, Maria ,  HASSAN, Mohammed Farag Nouraldin

IPC: H04R3/06 ,  H04R19/04 ,  H03F3/45

CPC classification number: H04R19/04 ,  H04R3/06 ,  H04R2201/00320130101 ,  H03F3/45941

Abstract: In accordance with an embodiment, a circuit includes a differential amplifier having inputs configured to be coupled to an output of a differential microelectromechanical systems (MEMS) device; a common mode coupling circuit coupled to an output of the differential amplifier; and an amplifier having an input coupled to an output of the common mode coupling circuit and an output configured to be AC coupled to a bias input node of the differential MEMS device.

公开(公告)号：EP4030782B1

公开(公告)日：2024-08-14

申请号：EP22150681.9

申请日：2022-01-10

IPC: H04R7/06 ,  H04R7/12 ,  G10K15/04 ,  H04R17/00

CPC classification number: H04R2201/00320130101 ,  H04R2499/1120130101 ,  H04R2400/0020130101 ,  H04R17/00 ,  H04R7/06 ,  H04R7/122 ,  H04R2217/0320130101 ,  G10K15/04

公开(公告)号：EP3612493B1

公开(公告)日：2024-07-10

申请号：EP18718833.9

申请日：2018-04-20

IPC: B81B3/00 ,  H04R1/24

CPC classification number: B81B3/0024 ,  B81B3/0027 ,  B81B2201/025720130101 ,  B81B2201/03220130101 ,  B81B2201/03620130101 ,  B81B2203/05120130101 ,  B81B2207/01220130101 ,  H04R1/24 ,  H04R9/063 ,  H04R9/08 ,  H04R15/00 ,  H04R17/00 ,  H04R19/02 ,  H04R19/04 ,  H04R23/002 ,  H04R2201/00320130101

公开(公告)号：EP4381743A1

公开(公告)日：2024-06-12

申请号：EP22731908.4

申请日：2022-05-23

Applicant: InvenSense, Inc.

Inventor： PITAK, Tomas ,  MUCHA, Igor ,  DICK, Robert ,  TUTTLE, Michael

IPC: H04R3/00 ,  H04R29/00 ,  G10L25/78

CPC classification number: H04R3/00 ,  H04R29/004 ,  H04R2201/00320130101 ,  G10L2025/78320130101

公开(公告)号：EP3885311B1

公开(公告)日：2024-05-01

申请号：EP20166393.7

申请日：2020-03-27

IPC: B81B3/00 ,  H04M1/60 ,  H04R23/00 ,  H04R31/00 ,  H04R1/28 ,  H04R1/40 ,  H04R1/24 ,  H04M1/02 ,  H04M1/03

CPC classification number: H04R31/006 ,  H04R2499/1520130101 ,  H04R2499/1120130101 ,  H04R2201/00320130101 ,  H04R23/008 ,  H04R1/406 ,  H04R1/28 ,  H04R1/245 ,  H04R1/2892 ,  H04M1/0266 ,  H04M1/03 ,  H04M1/6008

公开(公告)号：EP4430846A1

公开(公告)日：2024-09-18

申请号：EP22835530.1

申请日：2022-11-09

Applicant: Qualcomm Technologies, Inc.

Inventor： LITTRELL, Robert John

IPC: H04R17/02

CPC classification number: H04R17/02 ,  H04R2201/00320130101 ,  H04R2410/0320130101 ,  H04R2207/02120130101

公开(公告)号：EP3637798B1

公开(公告)日：2024-07-24

申请号：EP18199425.2

申请日：2018-10-09

IPC: H04R19/04 ,  H04R19/00 ,  H04R3/00

CPC classification number: H04R3/00 ,  H04R19/005 ,  H04R19/04 ,  H04R2201/00320130101

公开(公告)号：EP4075422B1

公开(公告)日：2024-07-17

申请号：EP22168299.0

申请日：2022-04-14

IPC: G10K9/125 ,  H04R17/00 ,  B06B1/06

CPC classification number: G10K9/125 ,  H04R17/00 ,  B06B2201/5520130101 ,  B06B1/0629 ,  H04R2400/0020130101 ,  H04R2201/00320130101

公开(公告)号：EP3557881B1

公开(公告)日：2024-06-19

申请号：EP19170426.1

申请日：2019-04-19

IPC: H04R17/02 ,  H04R31/00 ,  B81B3/00

CPC classification number: H04R17/02 ,  H04R31/00 ,  H04R2201/00320130101 ,  H04R2499/1120130101 ,  H04R2440/0720130101

公开(公告)号：EP4376442A2

公开(公告)日：2024-05-29

申请号：EP24169393.6

申请日：2023-03-28

Applicant: STMicroelectronics S.r.l.

Inventor： CERINI, Fabrizio ,  ADORNO, Silvia ,  SALINA, Marco

IPC: H04R17/00

CPC classification number: H04R7/06 ,  H04R17/00 ,  H04R2201/00320130101 ,  H04R2499/1120130101

Abstract: A microelectromechanical electroacoustic transducer includes a supporting frame (12) of semiconductor material, a membrane (13) of semiconductor material, connected to the supporting frame (12) along a perimeter and having central symmetry, and a piezoelectric actuator (15) on a peripheral portion of the membrane (13). The membrane (13) has through slits (17, 18) of elongated shape arranged around a center of the membrane (13). The through slits (17, 18) are at least partially closed on one side of the membrane (13) with strips (525) of polymeric material.