Auto-focus method
    1.
    发明授权
    Auto-focus method 有权
    自动对焦方式

    公开(公告)号:US08744255B2

    公开(公告)日:2014-06-03

    申请号:US13603440

    申请日:2012-09-05

    IPC分类号: G03B13/36

    摘要: An auto-focus (AF) method adapted for an image capturing device includes following steps. When a first press signal generated by a user pressing a button of the image capturing device is detected, a local peak searching method is applied to perform an AF procedure. It is determined whether a second press signal generated by the user pressing the button is detected. If not, it is determined whether a first released signal generated by the user releasing the button is detected. The continuous pressing count is calculated according to the first released signal and the first press signal that are continuously generated. Whether the continuous pressing count is greater than a first threshold is determined. If yes, a global peak searching method is applied to perform the AF procedure. If not, the local peak searching method is still applied to perform the AF procedure.

    摘要翻译: 适用于图像捕获装置的自动对焦(AF)方法包括以下步骤。 当检测到由用户按下图像捕获装置的按钮产生的第一按压信号时,应用局部峰值搜索方法来执行AF过程。 确定是否检测到用户按下按钮产生的第二按压信号。 如果不是,则确定是否检测到用户释放按钮产生的第一释放信号。 根据连续产生的第一释放信号和第一按压信号计算连续按压计数。 确定连续按压计数是否大于第一阈值。 如果是,则应用全局峰值搜索方法来执行AF过程。 如果不是,则本地峰值搜索方法仍然适用于执行AF过程。

    Automatic focusing method and device in high-noise environment
    2.
    发明授权
    Automatic focusing method and device in high-noise environment 有权
    自动聚焦方法和设备在高噪声环境下

    公开(公告)号:US08497930B2

    公开(公告)日:2013-07-30

    申请号:US12541928

    申请日:2009-08-15

    IPC分类号: G03B13/00 H04N5/232

    CPC分类号: G03B13/34 H04N5/23212

    摘要: An automatic focusing method and device in a high-noise environment are used for determining a focusing distance between a digital imaging device and an object to be photographed. The automatic focusing method includes the steps of capturing M pre-photographed images at different object distances respectively; loading the pre-photographed images; superposing every N (N

    摘要翻译: 使用高噪声环境下的自动聚焦方法和装置来确定数字成像装置和待拍摄对象之间的聚焦距离。 自动聚焦方法包括以下步骤:分别捕获在不同物体距离处的M个预拍摄图像; 加载预先拍摄的图像; 重叠每N(N

    Automatic focusing method in high-noise environment and digital imaging device using the same
    3.
    发明授权
    Automatic focusing method in high-noise environment and digital imaging device using the same 有权
    自动对焦方式在高噪声环境下和数字成像装置中使用相同

    公开(公告)号:US08102464B2

    公开(公告)日:2012-01-24

    申请号:US12541926

    申请日:2009-08-15

    IPC分类号: H04N5/232

    CPC分类号: G03B13/34 H04N5/23212

    摘要: An automatic focusing method in a high-noise environment and a digital imaging device using the same are used for determining an object distance. The method includes taking two digital images at a farthest object distance and taking two digital images at a nearest object distance, under a first exposure condition and a second exposure condition; capturing digital images under the first exposure condition at a plurality of different object distances other than the farthest and nearest object distances; selecting at least two images captured at adjacent object distances to create a composite image; calculating an object distance of the composite image; calculating high-frequency signals of the second farthest object distance image, the second nearest object distance image, and the composite image in the focusing frame; determining from the images an object distance corresponding to the maximum high-frequency signal; and moving an automatic focusing lens to the object distance.

    摘要翻译: 使用高噪声环境下的自动聚焦方法和使用其的数字成像装置来确定对象距离。 该方法包括在最远物体距离处拍摄两个数字图像,并在第一曝光条件和第二曝光条件下以最近物距离拍摄两个数字图像; 在第一曝光条件下以除了最远和最近的物体距离之外的多个不同物体距离捕获数字图像; 选择在相邻对象距离处捕获的至少两个图像以创建合成图像; 计算合成图像的物距; 计算第二最远对象距离图像,第二最近对象距离图像和聚焦帧中的合成图像的高频信号; 从所述图像确定对应于所述最大高频信号的对象距离; 并将自动聚焦透镜移动到物体距离。

    Adjustable biased gamma-correction circuit with central-symmetry voltage
    4.
    发明授权
    Adjustable biased gamma-correction circuit with central-symmetry voltage 有权
    具有中心对称电压的可调偏置伽马校正电路

    公开(公告)号:US06680755B2

    公开(公告)日:2004-01-20

    申请号:US09826097

    申请日:2001-04-05

    IPC分类号: H04N5202

    CPC分类号: G09G3/3696 G09G2320/0276

    摘要: An adjustable biased Gamma-correction circuit with central-symmetry voltage is disclosed. The present invention provides varistors, transistors, or operation amplifiers in a Gamma-correction circuit to obtain a plurality of plus and minus symmetrical driving voltages based on a central voltage. Utilizing the present invention, a Gamma-correction circuit can generate the most adjustable driving voltages by using the minimum voltage sources.

    摘要翻译: 公开了一种具有中心对称电压的可调偏置伽马校正电路。 本发明提供伽马校正电路中的压敏电阻,晶体管或运算放大器,以基于中心电压获得多个正负对称的驱动电压。 利用本发明,伽马校正电路可以通过使用最小电压源来产生最可调的驱动电压。

    Flash light device
    5.
    发明授权
    Flash light device 有权
    闪光灯装置

    公开(公告)号:US08953095B2

    公开(公告)日:2015-02-10

    申请号:US13530090

    申请日:2012-06-21

    申请人: Ming-Jiun Liaw

    发明人: Ming-Jiun Liaw

    摘要: The invention provides a flash light device, which includes a light source, a light diffuser and a light diffuser's driving unit. The light diffuser's driving unit provides the light diffuser with a required driving voltage according to a voltage information, in which the voltage information is determined according to an original image without light-complementing of the light source and a pre-flash image with light-complementing of the light source.

    摘要翻译: 本发明提供了一种闪光灯装置,其包括光源,光漫射器和光扩散器的驱动单元。 光漫射器的驱动单元根据电压信息为光漫射器提供所需的驱动电压,其中根据原始图像确定电压信息,而不对光源进行光互补,并且具有光互补的预闪光图像 的光源。

    Voltage-controlled light diffusing module, flash lamp module and controlling method thereof based on face information
    6.
    发明授权
    Voltage-controlled light diffusing module, flash lamp module and controlling method thereof based on face information 有权
    基于面部信息的电压控制光漫射模块,闪光灯模块及其控制方法

    公开(公告)号:US08604708B2

    公开(公告)日:2013-12-10

    申请号:US13372491

    申请日:2012-02-13

    申请人: Ming-Jiun Liaw

    发明人: Ming-Jiun Liaw

    IPC分类号: H05B37/00 H05B39/00 H05B41/14

    摘要: A voltage-controlled light diffusing module, a flash lamp module and a controlling method thereof are provided. The voltage-controlled light diffusing module includes a light diffuser, a driving circuit and an information processing unit. The information processing unit receives face information for deciding a driving voltage of the driving circuit, so as to change transmission of the light diffuser.

    摘要翻译: 提供了压控光扩散模块,闪光灯模块及其控制方法。 压控光漫射模块包括光扩散器,驱动电路和信息处理单元。 信息处理单元接收用于决定驱动电路的驱动电压的面部信息,以便改变光扩散器的透射。

    AUTOMATIC FOCUSING METHOD IN HIGH-NOISE ENVIRONMENT AND DIGITAL IMAGING DEVICE USING THE SAME
    7.
    发明申请
    AUTOMATIC FOCUSING METHOD IN HIGH-NOISE ENVIRONMENT AND DIGITAL IMAGING DEVICE USING THE SAME 有权
    使用该噪声的高噪声环境和数字成像装置中的自动聚焦方法

    公开(公告)号:US20100165177A1

    公开(公告)日:2010-07-01

    申请号:US12541926

    申请日:2009-08-15

    IPC分类号: G06K9/46 G03B13/34 G03B13/30

    CPC分类号: G03B13/34 H04N5/23212

    摘要: An automatic focusing method in a high-noise environment and a digital imaging device using the same are used for determining an object distance. The method includes taking two digital images at a farthest object distance and taking two digital images at a nearest object distance, under a first exposure condition and a second exposure condition; capturing digital images under the first exposure condition at a plurality of different object distances other than the farthest and nearest object distances; selecting at least two images captured at adjacent object distances to create a composite image; calculating an object distance of the composite image; calculating high-frequency signals of the second farthest object distance image, the second nearest object distance image, and the composite image in the focusing frame; determining from the images an object distance corresponding to the maximum high-frequency signal; and moving an automatic focusing lens to the object distance.

    摘要翻译: 使用高噪声环境下的自动聚焦方法和使用其的数字成像装置来确定对象距离。 该方法包括在最远物体距离处拍摄两个数字图像,并在第一曝光条件和第二曝光条件下以最近物距离拍摄两个数字图像; 在第一曝光条件下以除了最远和最近的物体距离之外的多个不同物体距离捕获数字图像; 选择在相邻对象距离处捕获的至少两个图像以创建合成图像; 计算合成图像的物距; 计算第二最远对象距离图像,第二最近对象距离图像和聚焦帧中的合成图像的高频信号; 从所述图像确定对应于所述最大高频信号的对象距离; 并将自动聚焦透镜移动到物体距离。

    Automatic gamma correction system for displays
    8.
    发明授权
    Automatic gamma correction system for displays 有权
    显示器的自动伽马校正系统

    公开(公告)号:US06593934B1

    公开(公告)日:2003-07-15

    申请号:US09714473

    申请日:2000-11-16

    IPC分类号: G09G502

    摘要: This invention is related to an automatic Gamma correction system in which a novel display driving circuitry is designed with a digital/analog converter (DAC), wherein the Gamma reference voltages as well as the corresponding gray-scale values are adjustable. Therefore, the present invention provides a greater degree of freedom for the realization of the correction of Gamma parameters so as to fit the curve representing the transfer function of the destination gray-scale values and the voltages required by the display driving circuitry.

    摘要翻译: 本发明涉及一种自动伽马校正系统,其中新的显示驱动电路被设计有数字/模拟转换器(DAC),其中伽马参考电压以及对应的灰度值是可调节的。 因此,本发明为实现伽马参数的校正提供了更大的自由度,以便拟合表示目标灰度值的传递函数的曲线和显示驱动电路所需的电压。

    Multistage charging circuit for driving liquid crystal displays
    9.
    发明授权
    Multistage charging circuit for driving liquid crystal displays 有权
    用于驱动液晶显示器的多级充电电路

    公开(公告)号:US06483494B1

    公开(公告)日:2002-11-19

    申请号:US09578000

    申请日:2000-05-24

    IPC分类号: G09G336

    摘要: Disclosed is a multistage charging circuit for driving liquid crystal displays, designed particularly to provide a multistage charging driving circuit for liquid crystal display, in which the pixels can be pre-charged to a determined voltage value before the next data are written by performing charge-sharing and pre-charge. Due to the fact that the voltage and the next data have the same polarity, the problems resulted from gray-scale voltage imprecision and latch up at the output can be prevented and thus high gray-scale precision and low power dissipation can be achieved.

    摘要翻译: 公开了用于驱动液晶显示器的多级充电电路,其特别设计为提供用于液晶显示器的多级充电驱动电路,其中可以通过执行充电状态来在下一个数据被写入之前将像素预先充电到确定的电压值, 共享和预收费。 由于电压和下一个数据具有相同的极性,因此可以防止灰度电压不精确和在输出端锁存的问题,从而可以实现高灰度精度和低功耗。

    DAC with adjusting digital codes corresponded to reference voltages
    10.
    发明授权
    DAC with adjusting digital codes corresponded to reference voltages 有权
    具有调节数字代码的DAC对应于参考电压

    公开(公告)号:US06424281B1

    公开(公告)日:2002-07-23

    申请号:US09713933

    申请日:2000-11-16

    IPC分类号: H03M166

    CPC分类号: H03M1/664 H03M1/765

    摘要: Disclosed is a DAC (digital/analog converter) with adjustable digital codes corresponding to reference voltages, in which a novel DAC designed with an associated circuit is used in non-linear digital-code-to-voltage transfer applications, so as to provide the display with analog voltage signals. In such a DAC, the Gamma reference voltages as well as the corresponding digital codes are adjustable. It provides a greater degree of freedom for the realization of the correction of Gamma parameters so as to fit the curve representing the transfer function of the destination digital codes and the voltages required by the data driver and to precisely implement the digital-code-to-voltage transfer function.

    摘要翻译: 公开了一种具有对应于参考电压的可调数字代码的DAC(数字/模拟转换器),其中在非线性数字代码到电压转移应用中使用设计有相关电路的新型DAC,以提供 显示模拟电压信号。 在这样的DAC中,伽马参考电压以及相应的数字代码是可调节的。 它为实现伽马参数的校正提供了更大的自由度,以适应表示目标数字代码的传递函数的曲线和数据驱动器所需的电压,并且精确地实现数字代码 - 电压传递功能。