公开(公告)号：US20150237432A1

公开(公告)日：2015-08-20

申请号：US14626636

申请日：2015-02-19

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Eugenio MILUZZI ,  Martino ZERBINI ,  Davide NEGRI

IPC: H04R1/08

CPC classification number: H04R1/08 ,  H04R1/04 ,  H04R3/00 ,  H04R3/005 ,  H04R2201/003

Abstract: A processing circuit for a digital sensor, including: a control stage, which generates a control signal; a multiplexing stage, which may be electrically coupled to a plurality of sensing structures for receiving corresponding detection signals and generates a multiplexed signal, on the basis of one between the detection signals, as a function of the control signal; an analog-to-digital conversion stage, which is connected to the multiplexing stage and generates an encoded signal on the basis of the multiplexed signal; and an equalizer, which multiplies the encoded signal by a coefficient that depends upon the control signal.

Abstract translation: 一种用于数字传感器的处理电路，包括：产生控制信号的控制级; 复用级，其可以电耦合到多个感测结构，用于接收对应的检测信号，并且基于检测信号之间的一个作为控制信号的函数产生多路复用信号; 模数转换级，其连接到多路复用级，并根据复用的信号生成编码信号; 以及均衡器，其将编码信号乘以取决于控制信号的系数。

公开(公告)号：US20160241956A1

公开(公告)日：2016-08-18

申请号：US15140345

申请日：2016-04-27

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Martino ZERBINI ,  Luca Molinari

IPC: H04R3/00 ,  H04R19/00 ,  H04R29/00 ,  H04R1/04

CPC classification number: H04R3/005 ,  H04R1/04 ,  H04R19/005 ,  H04R25/407 ,  H04R29/004 ,  H04R2201/003

Abstract: A interface circuit for an acoustic transducer provided with a first detection structure and a second detection structure has: a first input and a second input; a first processing path and a second processing path coupled, respectively, to the first input and second input and supply a first processed signal and a second processed signal; and a recombination stage, which supplies a mixed signal by combining the first processed signal and the second processed signal with a respective weight that is a function of a first level value of the first processed signal. The first and second inputs receive a respective detection signal associated, respectively, to the first detection structure and to the second detection structure of the acoustic transducer; and an output stage the first processed signal, the second processed signal or the mixed signal, on the basis of a second level value of the first processed signal.

Abstract translation: 一种用于具有第一检测结构和第二检测结构的声换能器的接口电路，具有：第一输入端和第二输入端; 第一处理路径和第二处理路径分别耦合到第一输入和第二输入，并提供第一处理信号和第二处理信号; 以及复合级，其通过将第一处理信号和第二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。 第一和第二输入分别接收与第一检测结构和声换能器的第二检测结构相关联的检测信号; 基于第一处理信号的第二电平值，输出第一处理信号，第二处理信号或混合信号。