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    SELF-TEST METHOD, CORRESPONDING CIRCUIT AND DEVICE
    1.
    发明申请
    SELF-TEST METHOD, CORRESPONDING CIRCUIT AND DEVICE 审中-公开

    公开(公告)号：US20200050305A1

    公开(公告)日：2020-02-13

    申请号：US16523302

    申请日：2019-07-26

    Applicant: STMicroelectronics S.r.l.

    Inventor： Calogero Marco Ippolito ,  Angelo Recchia ,  Antonio Cicero ,  Pierpaolo Lombardo ,  Michele Vaiana

    IPC: G06F3/045 ,  G06F3/041 ,  G09G3/00 ,  G01R31/28

    Abstract: A touchscreen resistive sensor includes a network of resistive sensor branches coupled to a number of sensor nodes arranged at touch locations of the touchscreen. A test sequence is performed by sequentially applying to each sensor node a reference voltage level, jointly coupling to a common line the other nodes, sensing a voltage value at the common line, and declaring a short circuit condition as a result of the voltage value sensed at the common line reaching a short circuit threshold. A current value level flowing at the sensor node to which the reference voltage level is applied is sensed and a malfunction of the resistive sensor branch coupled with the sensor node to which a reference voltage level is applied is generated as a result of the current value sensed at the sensor node reaching an upper threshold or lower threshold.

    Power oscillator apparatus with transformer-based power combining for galvanically-isolated bidirectional data communication and power transfer
    2.
    发明授权
    Power oscillator apparatus with transformer-based power combining for galvanically-isolated bidirectional data communication and power transfer 有权
    功率振荡器装置，具有基于变压器的功率组合，用于电隔离双向数据通信和电力传输

    公开(公告)号：US09306614B2

    公开(公告)日：2016-04-05

    申请号：US14631397

    申请日：2015-02-25

    Applicant: STMicroelectronics S.r.l.

    Inventor： Egidio Ragonese ,  Vincenzo Fiore ,  Nunzio Spina ,  Pierpaolo Lombardo ,  Giuseppe Palmisano

    IPC: H04B1/40 ,  H04L27/08 ,  H03B5/12 ,  G08C19/16 ,  G08C19/02 ,  H04B3/54

    CPC classification number: H04B1/40 ,  G08C19/02 ,  G08C19/16 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1296 ,  H03B2200/0074 ,  H04B3/54 ,  H04L27/08

    Abstract: An apparatus includes first and second oscillator circuits. A transformer has a primary winding coupling the first oscillator circuit to the second oscillator circuit and a secondary winding. A first outgoing communications circuit is coupled to the second oscillator circuit and drives an amplitude modulated data signal thereto. A first incoming communications circuit is coupled to the primary winding of the transformer. A second outgoing communications circuit is coupled to the secondary winding drives an amplitude modulated data signal thereto. A second incoming communications circuit is coupled to the secondary winding. The secondary winding is magnetically coupled with the primary winding so the secondary winding receives an output power and an incoming data transmission based upon the amplitude modulated data signal, and so the primary winding receives an incoming high speed data transmission based upon the amplitude modulated data signal.

    Abstract translation: 一种装置包括第一和第二振荡器电路。 变压器具有将第一振荡器电路耦合到第二振荡器电路的初级绕组和次级绕组。 第一输出通信电路耦合到第二振荡器电路并向其驱动调幅数据信号。 第一输入通信电路耦合到变压器的初级绕组。 耦合到次级绕组的第二输出通信电路驱动其幅度调制数据信号。 第二输入通信电路耦合到次级绕组。 次级绕组与初级绕组磁耦合，使得次级绕组基于幅度调制数据信号接收输出功率和输入数据传输，因此初级绕组基于幅度调制数据信号接收输入的高速数据传输 。

    Self-test method, corresponding circuit and device
    4.
    发明授权
    Self-test method, corresponding circuit and device 有权

    公开(公告)号：US10809862B2

    公开(公告)日：2020-10-20

    申请号：US16523302

    申请日：2019-07-26

    Applicant: STMicroelectronics S.r.l.

    Inventor： Calogero Marco Ippolito ,  Angelo Recchia ,  Antonio Cicero ,  Pierpaolo Lombardo ,  Michele Vaiana

    IPC: G06F3/045 ,  G06F3/041 ,  G01R31/28 ,  G09G3/00

    Abstract: A touchscreen resistive sensor includes a network of resistive sensor branches coupled to a number of sensor nodes arranged at touch locations of the touchscreen. A test sequence is performed by sequentially applying to each sensor node a reference voltage level, jointly coupling to a common line the other nodes, sensing a voltage value at the common line, and declaring a short circuit condition as a result of the voltage value sensed at the common line reaching a short circuit threshold. A current value level flowing at the sensor node to which the reference voltage level is applied is sensed and a malfunction of the resistive sensor branch coupled with the sensor node to which a reference voltage level is applied is generated as a result of the current value sensed at the sensor node reaching an upper threshold or lower threshold.

    Self-test method, corresponding circuit and device
    6.
    发明授权
    Self-test method, corresponding circuit and device 有权

    公开(公告)号：US11561663B2

    公开(公告)日：2023-01-24

    申请号：US17038546

    申请日：2020-09-30

    Applicant: STMicroelectronics S.r.l.

    Inventor： Calogero Marco Ippolito ,  Angelo Recchia ,  Antonio Cicero ,  Pierpaolo Lombardo ,  Michele Vaiana

    IPC: G06F3/045 ,  G06F3/041 ,  G01R31/28 ,  G09G3/00

    Abstract: A touchscreen resistive sensor includes a network of resistive sensor branches coupled to a number of sensor nodes arranged at touch locations of the touchscreen. A test sequence is performed by sequentially applying to each sensor node a reference voltage level, jointly coupling to a common line the other nodes, sensing a voltage value at the common line, and declaring a short circuit condition as a result of the voltage value sensed at the common line reaching a short circuit threshold. A current value level flowing at the sensor node to which the reference voltage level is applied is sensed and a malfunction of the resistive sensor branch coupled with the sensor node to which a reference voltage level is applied is generated as a result of the current value sensed at the sensor node reaching an upper threshold or lower threshold.

    Method of collecting signals sensed from sensing transistors, corresponding sensor device and imaging camera
    10.
    发明授权
    Method of collecting signals sensed from sensing transistors, corresponding sensor device and imaging camera 有权

    公开(公告)号：US11805223B2

    公开(公告)日：2023-10-31

    申请号：US17745465

    申请日：2022-05-16

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pierpaolo Lombardo ,  Michele Vaiana

    IPC: G01J5/06 ,  G01J5/08 ,  G01J5/20 ,  H04N5/33

    CPC classification number: H04N5/33 ,  G01J5/064 ,  G01J5/08 ,  G01J5/20

    Abstract: Current signals indicative of sensed physical quantities are collected from sensing transistors in an array of sensing transistors. The sensing transistors have respective control nodes and current channel paths therethrough between respective first nodes and a second node common to the sensing transistors. A bias voltage level is applied to the respective first nodes of the sensing transistors in the array and one sensing transistor in the array of sensing transistors is selected. The selected sensing transistor is decoupled from the bias voltage level, while the remaining sensing transistors in the array of sensing transistors maintain coupling to the bias voltage level. The respective first node of the selected sensing transistor in the array of sensing transistors is coupled to an output node, and an output current signal is collected from the output node.

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