公开(公告)号：US20160381465A1

公开(公告)日：2016-12-29

申请号：US14752475

申请日：2015-06-26

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Eugenio MILUZZI

IPC: H04R19/04 ,  H04R29/00 ,  H03F3/183 ,  H04R3/00

CPC classification number: H04R19/04 ,  H03F3/183 ,  H03F3/187 ,  H03F2200/03 ,  H03F2200/321 ,  H03F2200/375 ,  H04R1/04 ,  H04R3/005 ,  H04R7/06 ,  H04R19/005 ,  H04R29/005 ,  H04R2201/003

Abstract: A multi-membrane microphone including an audio processing circuit is disclosed. The membranes are configured to output to a plurality of amplifiers a plurality of sensing signals in response to sound. The amplifiers in turn create amplified signals by amplifying the sensing signals and introduce a plurality of offsets into the amplified signals, respectively. The audio processing circuit includes a controller that sequentially measures the offset for each amplifier a corresponding membrane is inactive and stores the offset. The controller also compensates each amplified signal by the corresponding offset during operation of the multi-membrane microphone.

Abstract translation: 公开了一种包括音频处理电路的多膜麦克风。 膜被配置为响应于声音向多个放大器输出多个感测信号。 放大器又通过放大感测信号并将多个偏移分别引入放大信号来产生放大信号。 音频处理电路包括一个控制器，该控制器顺序地测量每个放大器的偏移，相应的膜不活动并存储偏移。 控制器还在多膜麦克风的操作期间通过相应的偏移来补偿每个放大的信号。

公开(公告)号：US20190114274A1

公开(公告)日：2019-04-18

申请号：US16219803

申请日：2018-12-13

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Eugenio MILUZZI ,  Marco LEO ,  Marco CASTELLANO

IPC: G06F13/364 ,  G06F13/42 ,  G06F13/40

CPC classification number: G06F13/364 ,  G06F13/404 ,  G06F13/4282 ,  G06F13/4291 ,  G06F2213/0052

Abstract: A system includes a multi-conductor bus, a master device coupled to the multi-conductor bus, and at least one slave device coupled to the multi-conductor bus. The multi-conductor bus has a clock line and a data line. The master device is arranged to transmit an address configuration sequence, and the at least one slave device is arranged to configurably determine its own address based on at least one portion of the address configuration sequence. The at least one slave device has a physical address configuration input coupled to either a fixed voltage potential or a changing voltage potential. The at least one slave device is arranged with a first address during a pre-initialization state and arranged with a second address during a post-initialization state. During the post-initialization state, the first address and the second address are a same address when the address configuration sequence represents the first address and the first address and the second address are different addresses when the address configuration sequence does not represent the first address.

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。