公开(公告)号：US20140010374A1

公开(公告)日：2014-01-09

申请号：US13936110

申请日：2013-07-05

Applicant: STMicroelectronics S.r.I. ,  Omron Corporation

Inventor： Takashi Kasai ,  Shobu Sato ,  Yuki Uchida ,  Igino Padovani ,  Filippo David ,  Sebastiano Conti ,  Martino Zerbini ,  Luca Molinari

IPC: H04R3/00

CPC classification number: H04R3/00 ,  H01L2224/48137 ,  H01L2924/16152 ,  H04R1/086 ,  H04R19/005 ,  H04R19/016 ,  H04R31/00

Abstract: The present disclosure is directed to an acoustic transducer configured to detect a sound wave according to changes in capacitances between a vibrating electrode and a fixed electrode. At least one of the vibrating electrode and the fixed electrode being divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting electrical signals. The disclosure includes a digital interface circuit coupled to the divided electrodes. The circuit includes a recombination stage, which supplies a mixed signal by combining the first digital processed signal and the second digital processed signal with a respective weight that is a function of a first level value of the first processed signal. An output stage is included, which supplies, selectively and alternatively, a first processed signal, a second processed signal, or a mixed signal.

Abstract translation: 本公开涉及一种被配置为根据振动电极和固定电极之间的电容的变化来检测声波的声学换能器。 振动电极和固定电极中的至少一个分为多个分割电极，多个分割电极输出电信号。 本公开包括耦合到分割电极的数字接口电路。 电路包括复合级，其通过将第一数字处理信号和第二数字处理信号组合为具有作为第一处理信号的第一电平值的函数的相应权重来提供混合信号。 包括输出级，其选择性地或替代地提供第一处理信号，第二处理信号或混合信号。

公开(公告)号：US09380380B2

公开(公告)日：2016-06-28

申请号：US13936110

申请日：2013-07-05

Applicant: Omron Corporation ,  STMICROELECTRONICS S.R.L.

Inventor： Takashi Kasai ,  Shobu Sato ,  Yuki Uchida ,  Igino Padovani ,  Filippo David ,  Sebastiano Conti ,  Martino Zerbini ,  Luca Molinari

IPC: H04R5/00 ,  H04R3/00 ,  H04R19/00 ,  H04R19/01 ,  H04R31/00 ,  H04R1/08

CPC classification number: H04R3/00 ,  H01L2224/48137 ,  H01L2924/16152 ,  H04R1/086 ,  H04R19/005 ,  H04R19/016 ,  H04R31/00

Abstract: The present disclosure is directed to an acoustic transducer configured to detect a sound wave according to changes in capacitances between a vibrating electrode and a fixed electrode. At least one of the vibrating electrode and the fixed electrode being divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting electrical signals. The disclosure includes a digital interface circuit coupled to the divided electrodes. The circuit includes a recombination stage, which supplies a mixed signal by combining the first digital processed signal and the second digital processed signal with a respective weight that is a function of a first level value of the first processed signal. An output stage is included, which supplies, selectively and alternatively, a first processed signal, a second processed signal, or a mixed signal.

Abstract translation: 本公开涉及一种被配置为根据振动电极和固定电极之间的电容的变化来检测声波的声学换能器。 振动电极和固定电极中的至少一个分为多个分割电极，多个分割电极输出电信号。 本公开包括耦合到分割电极的数字接口电路。 电路包括复合级，其通过将第一数字处理信号和第二数字处理信号组合为具有作为第一处理信号的第一电平值的函数的相应权重来提供混合信号。 包括输出级，其选择性地或替代地提供第一处理信号，第二处理信号或混合信号。