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    STACKED BUCK CONVERTERS
    513.
    发明申请
    STACKED BUCK CONVERTERS 审中-公开

    公开(公告)号：US20200177083A1

    公开(公告)日：2020-06-04

    申请号：US16680084

    申请日：2019-11-11

    Applicant: STMicroelectronics S.r.l.

    Inventor： Osvaldo Enrico Zambetti

    IPC: H02M3/158 ,  G01R31/327

    Abstract: A converter includes two switching stages coupled in series between positive and negative input terminals. A control circuit is configured for driving the switching stages based on an output voltage of the converter. A first switching stage includes two switches coupled in series between a positive input terminal and a first node. A capacitor and an inductor are coupled in series between the two switches and a positive output terminal. A third switch is coupled between a node between the capacitor and the inductor and the negative input terminal. A second capacitor is coupled between the first node and the negative input terminal. A second switching stage includes a second node coupled to the first node. Two additional electronic switches are coupled in series between the second node and the negative input terminal. A second inductor is coupled between the two additional switches and the positive output terminal.

    Pipelined exponential law brightness conversion for a multi-channel LED driver
    514.
    发明授权
    Pipelined exponential law brightness conversion for a multi-channel LED driver 有权

    公开(公告)号：US10674578B1

    公开(公告)日：2020-06-02

    申请号：US16584059

    申请日：2019-09-26

    Applicant: STMicroelectronics S.r.l.

    Inventor： Ignazio Cala′ ,  Salvatore Pantano ,  Santi Carlo Adamo

    IPC: G06F3/00 ,  H05B45/10 ,  H03K3/42 ,  H05B47/18 ,  G06F9/30 ,  G06F9/38

    Abstract: A circuit includes: a communication interface configured to receive data; a plurality of output terminals; a bank of input registers coupled to the communication interface; a bank of buffer registers; a bank of output registers; a signal generator configured to generate a plurality of output signals based on respective registers of the bank of output registers at respective output terminals; and a conversion stage configured to: when data is received by the bank of input registers from the communication interface, sequentially convert content of the input registers of the bank of input registers and store the converted content into corresponding buffer registers of the bank of buffer registers based on a conversion function, and when the conversion stage finishes storing the converted content into the buffer registers, simultaneously copy content from the buffer registers into corresponding output registers of the bank of output registers.

    METHOD OF ERROR CONCEALMENT, AND ASSOCIATED DEVICE
    518.
    发明申请
    METHOD OF ERROR CONCEALMENT, AND ASSOCIATED DEVICE 审中-公开

    公开(公告)号：US20200145019A1

    公开(公告)日：2020-05-07

    申请号：US16675051

    申请日：2019-11-05

    Applicant: STMicroelectronics S.r.l.

    Inventor： Marta Gómez Correa ,  Fabio Dell'Orto ,  Muhammad Umair Saeed

    IPC: H03M3/04 ,  H04B14/06 ,  G10L19/04 ,  G10L19/005 ,  H03M7/36 ,  G10L19/008

    Abstract: In an embodiment, a method includes: receiving an audio frame; decomposing the received audio frame into M sub-band pulse-code modulation (PCM) audio frames, where M is a positive integer number; predicting a PCM sample of one sub-band PCM audio frame of the M sub-band PCM audio frames; comparing the predicted PCM sample with a corresponding received PCM sample to generate a prediction error sample; comparing an instantaneous absolute value of the prediction error sample with a threshold; and replacing the corresponding received PCM sample with a value based on the predicted PCM sample when the instantaneous absolute value of the prediction error sample is greater than the threshold.

    Synchronization of laser scanning projector to video sources to minimize the delay therebetween
    519.
    发明授权
    Synchronization of laser scanning projector to video sources to minimize the delay therebetween 有权

    公开(公告)号：US10602029B2

    公开(公告)日：2020-03-24

    申请号：US15941717

    申请日：2018-03-30

    Applicant: STMicroelectronics LTD ,  STMicroelectronics S.r.l.

    Inventor： Eli Yaser ,  Massimo Ratti ,  Naomi Petrushevsky

    IPC: H04N5/06 ,  H04N7/01 ,  H04N9/31

    Abstract: Described herein is a video projection system including an optical module with at least one collimated light source to generate a light beam and at least one movable mirror to reflect the light beam. The video projection system also includes a video source producing a digital video stream in accordance with a clock signal and a movement synchronization signal, as well as a projector system. The projector system includes mirror control circuitry configured to control movement of the at least one movable mirror in accordance with the clock signal and the movement synchronization signal, a light source controller configured to control generation of collimated light by the at least one collimated light source, and processing circuitry configured to receive the digital video stream, and to generate control signals for the light source controller based upon the received digital video stream.

    Tensile stress measurement device with attachment plates and related methods
    520.
    发明授权
    Tensile stress measurement device with attachment plates and related methods 有权

    公开(公告)号：US10598578B2

    公开(公告)日：2020-03-24

    申请号：US15650380

    申请日：2017-07-14

    Applicant: STMicroelectronics S.r.l.

    Inventor： Alberto Pagani ,  Bruno Murari ,  Federico Giovanni Ziglioli

    IPC: G01N3/08 ,  H01L23/31 ,  G01L1/00 ,  G01N3/06 ,  G01L5/103

    Abstract: A tensile stress measurement device is to be attached to an object to be measured. The tensile stress measurement device may include an IC having a semiconductor substrate and tensile stress detection circuitry, the semiconductor substrate having opposing first and second attachment areas. The tensile stress measurement device may include a first attachment plate coupled to the first attachment area and extending outwardly to be attached to the object to be measured, and a second attachment plate coupled to the second attachment area and extending outwardly to be attached to the object to be measured. The tensile stress detection circuitry may be configured to detect a tensile stress imparted on the first and second attachment plates when attached to the object to be measured.

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