-
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
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：US12187604B2
公开(公告)日：2025-01-07
申请号：US17583896
申请日：2022-01-25
Applicant: STMicroelectronics S.r.l.
Inventor： Raffaele Enrico Furceri , Luca Molinari
Abstract: Techniques to be described herein are based upon the combination of a digital lock-in amplifier approach with a numerical method to yield accurate estimations of the amplitude and phase of a sense signal obtained from a movement sensor associated with a resonant MEMS device such as a MEMS mirror. The techniques described herein are efficient from a computational point of view, in a manner which is suitable for applications in which the implementing hardware is to follow size and power consumption constraints.
-
公开(公告)号：US12066621B2
公开(公告)日：2024-08-20
申请号：US17720506
申请日：2022-04-14
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Carminati , Nicolo' Boni , Andrea Barbieri , Marco Zamprogno , Luca Molinari
CPC classification number: G02B26/0858 , H02N2/028 , H02N2/062
Abstract: A MEMS device includes a semiconductor body with a cavity and forming an anchor portion, a tiltable structure elastically suspended over the cavity, first and second support arms to support the tiltable structure, and first and second piezoelectric actuation structures biasable to deform mechanically, generating a rotation of the tiltable structure around a rotation axis. The piezoelectric actuation structures carry first and second piezoelectric displacement sensors. When the tiltable structure rotates around the rotation axis, the displacement sensors are subject to respective mechanical deformations and generate respective sensing signals in phase opposition to each other, indicative of the rotation of the tiltable structure. The sensing signals are configured to be acquired in a differential manner.
-
公开(公告)号：US20150228359A1
公开(公告)日：2015-08-13
申请号：US14695110
申请日：2015-04-24
Inventor： Luca Molinari , Hong Wei Wang
Abstract: A failure diagnosis circuit includes a multiplexer and a controller. The multiplexer receives address signals, and selectively outputs one of the address signals to an addressable module in response to a selecting signal. The controller generates a first one of address signals and the selecting signal. A built-in self-test circuit generates the second address signal. The addressable module includes addressable components responsive to the address signal. The controller processes the output of the addressable module responsive to the address signal to make a failure diagnosis. The built-in self-test circuit performs signature analysis on the read out output of the addressable module.
Abstract translation: 故障诊断电路包括多路复用器和控制器。 多路复用器接收地址信号，并且响应于选择信号选择性地将一个地址信号输出到可寻址模块。 控制器产生第一个地址信号和选择信号。 内置的自检电路产生第二个地址信号。 可寻址模块包括响应于地址信号的可寻址组件。 控制器响应于地址信号处理可寻址模块的输出以进行故障诊断。 内置的自检电路对可寻址模块的读出输出执行签名分析。
-
公开(公告)号：US20180050901A1
公开(公告)日：2018-02-22
申请号：US15240709
申请日：2016-08-18
Applicant: STMicroelectronics Asia Pacific Pte Ltd , STMicroelectronics S.r.l. , STMicroelectronics, Inc.
Inventor： Teck Khim Neo , Mauro Pasetti , Franco Consiglieri , Luca Molinari , Andrea Nicola Colecchia , Simon Dodd
CPC classification number: B81B7/008 , B05B1/24 , B05B17/06 , B41J2/04501 , B41J2/04541 , B41J2/04543 , B41J2/14016 , B41J2/14072 , B81B2201/05 , B81B2207/012 , B81B2207/091
Abstract: The present disclosure is directed to a microfluidic die that includes ejection circuitry and one time programmable memory with a minimal number of contact pads to external devices. The die includes a relatively large number of nozzles and a relatively small number of contact pads. The die includes decoding circuitry that utilizes the small number of contact pads to control the drive and ejection of the nozzles and the reading/writing of the memory with the same contact pads.
-
Patent Agency Ranking
公开(公告)号：US09807500B2
公开(公告)日：2017-10-31
申请号：US15140345
申请日：2016-04-27
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Martino Zerbini , Luca Molinari
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.
-
公开(公告)号：US11774834B2
公开(公告)日：2023-10-03
申请号：US17479345
申请日：2021-09-20
Applicant: STMicroelectronics LTD , STMicroelectronics S.r.l.
Inventor： Alex Domnits , Elan Roth , Davide Terzi , Luca Molinari , Marco Boschi
CPC classification number: G03B21/142 , G01J1/0238 , G01J1/44 , G03B21/008 , G03B21/2033
Abstract: A scanning laser projector includes an optical module and projection engine. The optical module includes a laser generator outputting a laser beam, and a movable mirror scanning the laser beam across an exit window defined through the housing in a scanning pattern wider than the exit window such that the laser beam is directed through the exit window in a projection pattern that is smaller than and within the scanning pattern. A first light detector is positioned about a periphery of the exit window such that as the movable mirror scans the laser beam in the scan pattern, at a point in the scan pattern where the laser beam is scanned across an interior of the housing and not through the exit window, the laser beam impinges upon the first light detector. The projection engine adjusts driving of the movable mirror based upon output from the first light detector.
-
公开(公告)号：US10325584B2
公开(公告)日：2019-06-18
申请号：US14863228
申请日：2015-09-23
Inventor： Luca Molinari , Xi Chun Ma , Sandro Dalle Feste , Martino Zerbini
IPC: H04R1/10 , G10K11/178
Abstract: An active noise cancelling device including a sensor configured to convert acoustic signals into first audio signals and a speaker acoustically coupled to the sensor A control stage is configured to control the speaker based on the first audio signals to cause the speaker to produce cancelling acoustic waves that tend to suppress acoustic noise components in the acoustic signals. The control stage includes sigma-delta modulator digital filters.
-
9.发明授权Digital electronic interface circuit for an acoustic transducer, and corresponding acoustic transducer system 有权用于声学换能器的数字电子接口电路，以及相应的声学换能器系统公开(公告)号：US09456274B2
公开(公告)日：2016-09-27
申请号：US13936096
申请日：2013-07-05
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Martino Zerbini , Luca Molinari
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。
-
10.发明申请DIGITAL ELECTRONIC INTERFACE CIRCUIT FOR AN ACOUSTIC TRANSDUCER, AND CORRESPONDING ACOUSTIC TRANSDUCER SYSTEM 审中-公开用于声学传感器的数字电子接口电路和相应的声学传感器系统公开(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
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。
-
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.017 seconds)
