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    Lens position detecting circuit
    3.
    发明授权
    Lens position detecting circuit 有权
    镜头位置检测电路

    公开(公告)号：US09074876B2

    公开(公告)日：2015-07-07

    申请号：US13713951

    申请日：2012-12-13

    Applicant: Semiconductor Components Industries, LLC

    Inventor： Yoshihisa Tabuchi ,  Yasunori Nagata

    IPC: G01B11/14 ,  G01B11/00 ,  G01J1/18 ,  G02B27/64

    CPC classification number: G01B11/14 ,  G01B11/002 ,  G01J1/18 ,  G02B27/646 ,  G03B2205/0007

    Abstract: A position of a lens is detected by detecting, using a phototransistor, light that is emitted from a photodiode and that varies depending on lens position. A control unit divides a moving range of the lens into a plurality of areas, approximates a relationship between lens positions and current of the phototransistor for each of the areas, corrects a current of the phototransistor using the approximated relationship so as to obtain a corrected detection current having a linear relationship with respect to lens positions, and detects the position of the lens using the obtained corrected detection current.

    Abstract translation: 通过使用光电晶体管检测从光电二极管发出并根据透镜位置而变化的光来检测透镜的位置。 控制单元将透镜的移动范围分成多个区域，近似每个区域的透镜位置和光电晶体管的电流之间的关系，使用近似关系校正光电晶体管的电流，以获得校正检测 电流相对于透镜位置具有线性关系，并且使用获得的校正检测电流来检测透镜的位置。

    Methods and apparatus for focus control in an imaging system
    4.
    发明授权
    Methods and apparatus for focus control in an imaging system 有权

    公开(公告)号：US10162149B1

    公开(公告)日：2018-12-25

    申请号：US15788006

    申请日：2017-10-19

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Yoshihisa Tabuchi

    IPC: H04N5/232 ,  G02B7/02 ,  G02B7/28 ,  G02B7/09

    Abstract: Various embodiments of the present technology may comprise methods and apparatus for focus control in an imaging system. The methods and apparatus may comprise various circuits and/or systems configured to measure the ambient temperature of the lens module and compute a corrected target position based on known thermal characteristics of the lens and/or the lens barrel. Factors used to obtain the corrected target position may comprise the material the of the lens barrel, the thermal time constant of the lens barrel, the linear expansion coefficient of the lens barrel, the effective focal length (EFL) of the lens, the thermal response of the lens, and/or the temperature characteristic coefficient of the EFL.

    Control circuit and method
    5.
    发明授权
    Control circuit and method 有权
    控制电路及方法

    公开(公告)号：US09520823B2

    公开(公告)日：2016-12-13

    申请号：US14520452

    申请日：2014-10-22

    Applicant: Semiconductor Components Industries, LLC

    Inventor： Yoshihisa Tabuchi ,  Tomonori Kamiya

    IPC: H02P25/034

    CPC classification number: H02P25/034

    Abstract: In accordance with an embodiment, an actuator control circuit includes a driver circuit connected to a ringing characteristic determination circuit. A signal generator that is configured to generate an output signal having first period that has first and second portions where the first portion longer than the second portion is connected to the ringing characteristic determination circuit. Another embodiment includes a method for controlling an actuator by determining a resonant frequency and a ringing amplitude of an actuator signal; generating a control signal in response to the resonant frequency and the ringing amplitude of the actuator signal; and causing the actuator to move in response to the second drive signal.

    Abstract translation: 根据实施例，致动器控制电路包括连接到振铃特性确定电路的驱动器电路。 一种信号发生器，被配置为产生具有第一周期的输出信号，该第一周期具有比第二部分长的第一部分的第一和第二部分连接到振铃特性确定电路。 另一实施例包括一种通过确定致动器信号的谐振频率和振铃振幅来控制致动器的方法; 响应于致动器信号的谐振频率和振铃幅度产生控制信号; 并且致动器响应于第二驱动信号而移动。

    Photodetector circuit
    6.
    发明授权
    Photodetector circuit 有权
    光电检测器电路

    公开(公告)号：US08809762B2

    公开(公告)日：2014-08-19

    申请号：US13714149

    申请日：2012-12-13

    Applicant: Semiconductor Components Industries, LLC

    Inventor： Yoshihisa Tabuchi ,  Yasunori Nagata

    IPC: H01J40/14 ,  G01J1/18 ,  G01J1/44

    CPC classification number: G01J1/44 ,  G01J1/18

    Abstract: Light from a photodiode is detected using a phototransistor. At the time of startup, set data concerning a detected current is received at a communication interface, and the received set data is compared with the detected current. A control unit adjusts a current of the phototransistor so that the detected current matches the set data.

    Abstract translation: 使用光电晶体管检测来自光电二极管的光。 在启动时，在通信接口处接收关于检测到的电流的设置数据，并将所接收的设定数据与检测到的电流进行比较。 控制单元调整光电晶体管的电流，使得检测到的电流与设定数据匹配。

    LENS POSITION DETECTING CIRCUIT
    7.
    发明申请
    LENS POSITION DETECTING CIRCUIT 有权
    镜头位置检测电路

    公开(公告)号：US20130194587A1

    公开(公告)日：2013-08-01

    申请号：US13713951

    申请日：2012-12-13

    Applicant: Semiconductor Components Industries, LLC

    Inventor： Yoshihisa Tabuchi ,  Yasunori Nagata

    IPC: G01B11/14

    CPC classification number: G01B11/14 ,  G01B11/002 ,  G01J1/18 ,  G02B27/646 ,  G03B2205/0007

    Abstract: A position of a lens is detected by detecting, using a phototransistor, light that is emitted from a photodiode and that varies depending on lens position. A control unit divides a moving range of the lens into a plurality of areas, approximates a relationship between lens positions and current of the phototransistor for each of the areas, corrects a current of the phototransistor using the approximated relationship so as to obtain a corrected detection current having a linear relationship with respect to lens positions, and detects the position of the lens using the obtained corrected detection current.

    Abstract translation: 通过使用光电晶体管检测从光电二极管发出并根据透镜位置而变化的光来检测透镜的位置。 控制单元将透镜的移动范围分成多个区域，近似每个区域的透镜位置和光电晶体管的电流之间的关系，使用近似关系校正光电晶体管的电流，以获得校正检测 电流相对于透镜位置具有线性关系，并且使用获得的校正检测电流来检测透镜的位置。

    Methods and system for an integrated circuit
    8.
    发明授权
    Methods and system for an integrated circuit 有权

    公开(公告)号：US10817451B1

    公开(公告)日：2020-10-27

    申请号：US16449663

    申请日：2019-06-24

    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

    Inventor： Yoshihisa Tabuchi ,  Tomonori Kamiya

    IPC: G06F13/40 ,  G06F13/42

    Abstract: Various embodiments of the present technology may provide methods and system for an integrated circuit. The system may provide, at most, two integrated circuits (i.e., slave devices) connected to and configured to communicate with a host device (i.e., a master device). At least one of integrated circuits may comprise a first interface and a second interface, wherein the second interface is connected to the host in a manner that is opposite that of the first interface.

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