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公开(公告)号：US20220239335A1
公开(公告)日：2022-07-28
申请号：US17575523
申请日：2022-01-13
Applicant: STMicroelectronics Ltd , STMicroelectronics (Rousset) SAS
Inventor： Nicolas CORDIER , Chia-Hao CHEN
Abstract: A method is provided that is implemented by a first NFC device configured in reader mode. The method includes evaluating an information about the coupling between the first NFC device and a second NFC device configured in card mode, as a function of the position of an antenna of the first NFC device with respect to an antenna of the second NFC device. The method further includes indicating the information by a user interface of the first device.
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公开(公告)号：US20220208819A1
公开(公告)日：2022-06-30
申请号：US17556604
申请日：2021-12-20
Applicant: STMICROELECTRONICS LTD , STMICROELECTRONICS PTE LTD
Inventor： David GANI , Yiying KUO
IPC: H01L27/146 , H01L23/498
Abstract: The present disclosure is directed to a package that includes a transparent layer that is on and covers a sensor of a die as well as a plurality of electrical connections that extend from a first surface of the package to the second surface of the package opposite to the first surface. In at least one embodiment of a package, the electrical connections each include a conductive structure that extends through the transparent layer to a first side of a corresponding contact pad of the die, and at least one electrical that extends into the second surface of the die to a second side of the corresponding contact pad that is opposite to the first side. In at least another embodiment of a package, the electrical connections include a conductive structure that extends through a molding compound to a first side of a corresponding contact pad of the die, and at least one electrical via that extends into the second surface of the die to a second side of the corresponding contact pad opposite to the first side.
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公开(公告)号：US20220137400A1
公开(公告)日：2022-05-05
申请号：US17509823
申请日：2021-10-25
Applicant: STMicroelectronics LTD
Inventor： Alex DOMNITS , Shlomy ERLICH
Abstract: An optical package includes a beam combiner that combines laser light from a laser unit into a single laser beam, a movable mirror apparatus, and a fixed folding mirror which reflects the single laser beam toward the movable mirror apparatus. Beam equalizer optics cause increase of a slow axis divergence rate of the single laser beam such that its slow axis divergence rate is equal to its fast axis divergence rate. The movable mirror apparatus directs the single laser beam through an exit window. The beam equalizer optics include at least one negative spherical lens shaped such that a slow axis divergence rate of incident light is increased but a fast axis divergence rate of incident light is unaltered.
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公开(公告)号：US20220123650A1
公开(公告)日：2022-04-21
申请号：US17568247
申请日：2022-01-04
Applicant: STMicroelectronics LTD
Inventor： Laurent GONTHIER
IPC: H02M1/32
Abstract: A circuit includes two thyristors coupled in anti-series. An AC capacitor has first and second electrodes respectively coupled to two different electrodes of the two thyristors. The first and second electrodes are coupled to receive an AC voltage. A control circuit detects discontinuance of application of the AC voltage to the AC capacitor and in response thereto simultaneously applies same gate currents to the two thyristors. A current path through the two thyristors (one passing current in forward mode and the other in reverse mode) discharges a residual voltage stored on the AC capacitor.
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公开(公告)号：US20210336533A1
公开(公告)日：2021-10-28
申请号：US16858907
申请日：2020-04-27
Applicant: STMicroelectronics (Tours) SAS , STMicroelectronics LTD
Inventor： Ghafour BENABDELAZIZ , Laurent GONTHIER
Abstract: An AC capacitor is coupled to a totem-pole type PFC circuit. In response to detection of a power input disconnection, the PFC circuit is controlled to discharge the AC capacitor. The PFC circuit includes a resistor and a first MOSFET and a second MOSFET coupled in series between DC output nodes with a common node coupled to the AC capacitor. When the disconnection event is detected, one of the first and second MOSFETs is turned on to discharge the AC capacitor with a current flowing through the resistor and the turned on MOSFET. Furthermore, a thyristor may be simultaneously turned on, with the discharge current flowing through a series coupling of the MOSFET, resistor and thyristor. Disconnection is detected by detecting a zero-crossing failure of an AC power input voltage or lack of input voltage decrease or input current increase in response to MOSFET turn on for a DC input.
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Patent Agency Ranking
公开(公告)号：US20210226553A1
公开(公告)日：2021-07-22
申请号：US17148246
申请日：2021-01-13
Applicant: STMicroelectronics LTD
Inventor： Laurent GONTHIER
Abstract: A capacitive element has its terminals coupled together by two thyristors electrically in antiparallel. The discharge of the capacitive element is controlled by the application of a gate current to one thyristor of the two thyristors which is in a reverse-biased state in response to a voltage stored across the terminals of the capacitive element. The reverse-biased thyristor responds to the applied gate current by passing a leakage current to discharge the stored voltage.
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公开(公告)号：US20210193709A1
公开(公告)日：2021-06-24
申请号：US16721253
申请日：2019-12-19
Applicant: STMicroelectronics Ltd
Inventor： Yu-Tsung LIN
IPC: H01L27/146 , G01J1/42 , G01J3/51
Abstract: Disclosed herein is an ambient light sensor formed by a substrate, and an inner central area defined on the substrate, and a concentric polygonal shape defined on the substrate about the inner central area. The concentric polygonal shape is defined by concentric polygonal isolation regions and spoke shaped isolation regions extending through respective corners of the concentric polygonal isolation regions to the inner central area to thereby divide the concentric polygonal shape into a plurality of concentric polygonal regions, with each of the plurality of concentric polygonal regions divided into a plurality of trapezoidal sections. A plurality of photodiodes ae formed on the substrate such that each of the plurality of trapezoidal sections contains at least one photodiode. A color filter is applied to the plurality of trapezoidal sections and their respective photodiodes to thereby form a plurality of color channels.
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118.发明授权公开(公告)号：US10859817B2
公开(公告)日：2020-12-08
申请号：US16701495
申请日：2019-12-03
Applicant: STMicroelectronics Ltd
Inventor： Avi Resler
Abstract: A controller chip includes processing circuitry configured to process received samples by estimating trend functions from the samples, subtracting the trend functions from the samples to produce de-trended samples, performing a mathematical transform on the de-trended samples to produce frequency bins. The frequency bins may correspond to unwanted resonance movement of a movable mirror associated with the received samples. The processing circuit further generates an error function from the frequency bins. The error function can be used to generate correction signals for the movable mirror that serve to minimize the error function.
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119.发明申请公开(公告)号：US20200103645A1
公开(公告)日：2020-04-02
申请号：US16701495
申请日：2019-12-03
Applicant: STMicroelectronics Ltd
Inventor： Avi RESLER
Abstract: A controller chip includes processing circuitry configured to process received samples by estimating trend functions from the samples, subtracting the trend functions from the samples to produce de-trended samples, performing a mathematical transform on the de-trended samples to produce frequency bins. The frequency bins may correspond to unwanted resonance movement of a movable mirror associated with the received samples. The processing circuit further generates an error function from the frequency bins. The error function can be used to generate correction signals for the movable mirror that serve to minimize the error function.
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公开(公告)号：US20190011695A1
公开(公告)日：2019-01-10
申请号：US15643164
申请日：2017-07-06
Applicant: STMicroelectronics Ltd
Inventor： Guy Amor , Offir Duvdevany
IPC: G02B26/10
CPC classification number: G02B26/101 , H04N9/3135 , H04N9/3161 , H04N9/3164
Abstract: Mirror control circuitry described herein is for controlling a first micro-mirror of a micro-mirror apparatus that scans across a target area in a scan pattern. The mirror control circuitry includes a processor that determines a mechanical angle of the first micro-mirror for a given instant in time during scanning of the first micro-mirror between upper and lower rotational limits, the mechanical angle being such to maintain the scan pattern as being uniform while the micro-mirror apparatus scans across the target area between the upper and lower rotational limits. The processor also generates a driving signal for the first micro-mirror as a function of the determined mechanical angle for the first micro-mirror at the given instant in time.
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