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    Touchpad providing screen cursor/pointer movement control
    2.
    发明公开
    Touchpad providing screen cursor/pointer movement control 审中-公开
    Berührungsfeldmit Steuerung der Bildschirmcursor- / Bildschirmpointerbewegung

    公开(公告)号：EP1669847A2

    公开(公告)日：2006-06-14

    申请号：EP06075705.1

    申请日：1999-01-20

    Applicant: STMicroelectronics, Inc.

    Inventor： Ferrari, Alberto ,  Tartagni, Marco

    IPC: G06F3/044

    CPC classification number: G06F3/041 ,  G06F3/03547 ,  G06F3/0416 ,  G06F3/044 ,  G06F21/32 ,  G06F21/83 ,  G06F2203/0338 ,  G06K9/0002

    Abstract: A plurality N of capacitance sensing cells are arranged in a row/column array top to cooperate with a fingertip and produce an output signal that controls the movement of a cursor/pointer across a display screen. The output of each individual sensing cell is connected to the corresponding individual node of a resistor array that has N nodes arranged in a similar row/column array. A centroid output of the resistor nodes in row configuration provides an output signal for control of cursor movement in a row direction. A centroid output of the resistor nodes in column configuration provides an output signal for control of cursor movement in an orthogonal column direction. A mass signal output of the row/column resistor mode array provides a switch on/off signal.

    Abstract translation: 多个N个电容感测单元被布置在行/列阵列顶部中以与指尖协作并产生控制光标/指针在显示屏上移动的输出信号。 每个单独感测单元的输出连接到具有以相似行/列阵列布置的N个节点的电阻器阵列的相应单独节点。 行配置中的电阻器节点的质心输出提供用于控制在行方向上的光标移动的输出信号。 列配置中的电阻器节点的质心输出提供用于在正交列方向上控制光标移动的输出信号。 行/列电阻器模式阵列的质量信号输出提供开/关信号。

    Capacitive distance sensor
    3.
    发明公开
    Capacitive distance sensor 有权
    Kapazitiver Abstandssensor

    公开(公告)号：EP0942259A1

    公开(公告)日：1999-09-15

    申请号：EP99301681.5

    申请日：1999-03-05

    Applicant: STMicroelectronics, Inc.

    Inventor： Tartagni, Marco ,  Gupta, Bhusan ,  Kramer, Alan

    IPC: G01B7/287 ,  G01B7/004 ,  G06K9/00

    CPC classification number: G01B7/023 ,  G01B7/004 ,  G01B7/287 ,  G01B7/34 ,  G06K9/0002

    Abstract: A distance sensor has a capacitive element in turn having a first capacitor plate which is positioned facing a second capacitor plate whose distance is to be measured. In the case of fingerprinting, the second capacitor plate is defined directly by the skin surface of the finger being printed. The sensor comprises an inverting amplifier, between the input and output of which the capacitive element is connected to form a negative feedback branch. By supplying an electric charge step to the input of the inverting amplifier, a voltage step directly proportional to the distance being measured is obtained at the output.

    Abstract translation: 距离传感器具有电容元件，其依次具有第一电容器板，该第一电容器板面对要测量距离的第二电容器板。 在指纹识别的情况下，第二电容器板由被打印的手指的皮肤表面直接限定。 传感器包括反相放大器，其输入和输出之间电容元件连接以形成负反馈支路。 通过向反相放大器的输入端提供电荷步骤，在输出端获得与测量距离成正比的电压阶跃。

    Parasitic capacitance reduction for passive charge read out
    4.
    发明公开
    Parasitic capacitance reduction for passive charge read out 审中-公开
    寄生电容的降低为无源电荷的读出寄存器

    公开(公告)号：EP0915518A2

    公开(公告)日：1999-05-12

    申请号：EP98308776.8

    申请日：1998-10-27

    Applicant: STMicroelectronics, Inc.

    Inventor： Guerrieri, Roberto ,  Bisio, Marco ,  Tartagni, Marco

    IPC: H01L27/146 ,  H04N3/15

    CPC classification number: H04N5/378 ,  G11C5/063 ,  G11C7/06 ,  H04N5/357 ,  H04N5/3742

    Abstract: A circuit technique to reduce the input capacitance line of a charge integrator is described. This approach is particularly tailored for embedded read-out circuits in solid-state integrated sensors. An integrated charge amplifier described herein includes a generic amplifier element and a high speed buffer which drives a metal shield placed underneath the input line. The metal shield therefore follows the potential of the input line and thereby reduces the capacitance between the input line and ground.

    Abstract translation: 描述了一种电路技术，以减少电荷积分器的输入电容线。 这种方法特别适合用于在固态集成传感器嵌入读出电路。 在描述的集成电荷放大器包括通用放大器元件和驱动放置在输入线下面的金属屏蔽一个高速缓冲。 金属屏蔽THEREFORE跟随输入线的电势，从而减少输入线和接地之间的电容。

    Noise compensation circuit for image sensors
    6.
    发明公开
    Noise compensation circuit for image sensors 审中-公开
    Schildung zurStörgeräusch-KompensationfürBildsensoren

    公开(公告)号：EP0915616A1

    公开(公告)日：1999-05-12

    申请号：EP98308775.0

    申请日：1998-10-27

    Applicant: STMicroelectronics, Inc.

    Inventor： Guerrieri, Roberto ,  Rambaldi, Roberto ,  Tartagni, Marco

    IPC: H04N3/15

    CPC classification number: H01L27/14609 ,  H04N5/363 ,  H04N5/374 ,  H04N5/3745

    Abstract: Disclosed is a method and associated apparatus for compensating for kTC noise in individual pixels of an MOS imaging array. The kTC noise at issue forms when a pixel is disconnected from a reset voltage by turning off an MOS transistor which controls access to the pixel photodiode. Compensation is accomplished by first exposing the photodiode to the reset voltage and then disconnecting the well region from V dd to cause it to float. By allowing the well to float, the kTC charge subsequently introduced (at the conclusion of the reset process) redistributes so that most of it accumulates on the capacitor between the well and the substrate. Later, the well is reclamped to V dd , and the noise contribution stored in the well-substrate capacitor is canceled. A disclosed apparatus includes an array of pixels, each having a separate well. In addition, access of the well to a source of power (V dd ) must be switchable. Therefore, a transistor is included at each pixel's connection to a V dd .

    Abstract translation: 公开了用于补偿MOS成像阵列的各个像素中的kTC噪声的方法和相关装置。 通过关闭控制对像素光电二极管的访问的MOS晶体管，当像素与复位电压断开时，形成所讨论的kTC噪声。 通过首先将光电二极管暴露于​​复位电压，然后将阱区域与Vdd断开以使其浮动来实现补偿。 通过允许阱浮动，随后引入的kTC电荷（在复位过程结束时）重新分布，使得其大部分积聚在阱和衬底之间的电容器上。 之后，井改为Vdd，并且消除了存储在阱底板电容器中的噪声贡献。 公开的装置包括像素阵列，每个像素阵列具有单独的孔。 此外，井到电源（Vdd）的访问必须是可切换的。 因此，在每个像素与Vdd的连接处包括晶体管。

    Touchpad providing screen cursor/pointer movement control
    10.
    发明公开
    Touchpad providing screen cursor/pointer movement control 有权
    BerührungsempfindlicheTafel zur Bildschirmcursorbewegungssteuerung

    公开(公告)号：EP0932117A2

    公开(公告)日：1999-07-28

    申请号：EP99300408.4

    申请日：1999-01-20

    Applicant: STMicroelectronics, Inc.

    Inventor： Ferrari, Alberto ,  Tartagni, Marco

    IPC: G06K11/16

    CPC classification number: G06F3/041 ,  G06F3/03547 ,  G06F3/0416 ,  G06F3/044 ,  G06F21/32 ,  G06F21/83 ,  G06F2203/0338 ,  G06K9/0002

    Abstract: A plurality N of capacitance sensing cells are arranged in a row/column array top to cooperate with a fingertip and produce an output signal that controls the movement of a cursor/pointer across a display screen. The output of each individual sensing cell is connected to the corresponding individual node of a resistor array that has N nodes arranged in a similar row/column array. A centroid output of the resistor nodes in row configuration provides an output signal for control of cursor movement in a row direction. A centroid output of the resistor nodes in column configuration provides an output signal for control of cursor movement in an orthogonal column direction. A mass signal output of the row/column resistor mode array provides a switch on/off signal.

    Abstract translation: 多个N个电容感测单元被布置在行/列阵列顶部中以与指尖协作并产生控制光标/指针在显示屏上移动的输出信号。 每个单独感测单元的输出连接到具有以相似行/列阵列布置的N个节点的电阻器阵列的相应单独节点。 行配置中的电阻器节点的质心输出提供用于控制在行方向上的光标移动的输出信号。 列配置中的电阻器节点的质心输出提供用于在正交列方向上控制光标移动的输出信号。 行/列电阻器模式阵列的质量信号输出提供开/关信号。

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