公开(公告)号：US20090016709A1

公开(公告)日：2009-01-15

申请号：US12055582

申请日：2008-03-26

Applicant: Zhi-Hui Wen

Inventor： Zhi-Hui Wen

IPC: G03B13/36 ,  H04N5/232

CPC classification number: G03B13/36 ,  G02B7/36 ,  H04N5/23212 ,  H04N5/2351

Abstract: An exemplary automatic focusing system adopted in a camera includes a brightness detecting unit, a recording unit, a correcting unit, and a selecting unit. The brightness detecting unit is configured for detecting a general brightness value of an environment of a subject prior to a focusing operation of the camera and outputting a correction factor associated with the general brightness value. The recording unit is configured for storing a first set of brightness values and the first set of contrast values. The correcting unit stores a preset brightness value and a preset contrast value. The correcting unit is configured for calculating a number of second contrast values according to the correction factor, the first set of brightness values, a preset brightness value, and a preset contrast value. The selecting unit is configured for choosing a maximum contrast value from the number of second contrast values of the subject.

Abstract translation: 照相机中采用的示例性自动对焦系统包括亮度检测单元，记录单元，校正单元和选择单元。 亮度检测单元被配置为在相机的聚焦操作之前检测对象的环境的一般亮度值，并输出与一般亮度值相关联的校正因子。 记录单元被配置为存储第一组亮度值和第一组对比度值。 校正单元存储预设亮度值和预设对比度值。 校正单元被配置为根据校正因子，第一组亮度值，预设亮度值和预设对比度值来计算第二对比度值的数量。 选择单元被配置为从对象的第二对比度值的数量中选择最大对比度值。

公开(公告)号：US07826737B2

公开(公告)日：2010-11-02

申请号：US12178649

申请日：2008-07-24

Applicant: Zhi-Hui Wen

Inventor： Zhi-Hui Wen

IPC: G03B17/00

CPC classification number: G03B13/36 ,  G02B7/36

Abstract: An imaging pickup apparatus includes a lens module and a motor. The body includes a camera module configured for sensing an image. The motor is configured for driving the lens module to move in increments that are multiple steps of the motor. The multiplier used are “x” and “y” during an auto focus process. The image pickup apparatus includes a preset step number. Initially, the motor drives the lens module to move by increments of “x” steps. When the number of steps moved by the motor is greater than or equal to the preset step number, the motor drives the lens module to move by increment of “y” steps.

Abstract translation: 成像拾取装置包括透镜模块和电动机。 身体包括被配置为感测图像的相机模块。 电动机被配置为驱动透镜模块以电动机的多个步进的增量移动。 所使用的乘数在自动对焦过程中为“x”和“y”。 图像拾取装置包括预设步骤编号。 最初，电机驱动透镜模块以“x”步进的增量移动。 当电机移动的步数大于或等于预设步数时，电机通过增加“y”步进驱动镜头模块。

公开(公告)号：US07729604B2

公开(公告)日：2010-06-01

申请号：US12055582

申请日：2008-03-26

Applicant: Zhi-Hui Wen

Inventor： Zhi-Hui Wen

IPC: G03B13/00 ,  H04N5/232 ,  H04N9/73

CPC classification number: G03B13/36 ,  G02B7/36 ,  H04N5/23212 ,  H04N5/2351

Abstract: An exemplary automatic focusing system adopted in a camera includes a brightness detecting unit, a recording unit, a correcting unit, and a selecting unit. The brightness detecting unit is configured for detecting a general brightness value of an environment of a subject prior to a focusing operation of the camera and outputting a correction factor associated with the general brightness value. The recording unit is configured for storing a first set of brightness values and the first set of contrast values. The correcting unit stores a preset brightness value and a preset contrast value. The correcting unit is configured for calculating a number of second contrast values according to the correction factor, the first set of brightness values, a preset brightness value, and a preset contrast value. The selecting unit is configured for choosing a maximum contrast value from the number of second contrast values of the subject.

Abstract translation: 照相机中采用的示例性自动对焦系统包括亮度检测单元，记录单元，校正单元和选择单元。 亮度检测单元被配置为在相机的聚焦操作之前检测对象的环境的一般亮度值，并输出与一般亮度值相关联的校正因子。 记录单元被配置为存储第一组亮度值和第一组对比度值。 校正单元存储预设亮度值和预设对比度值。 校正单元被配置为根据校正因子，第一组亮度值，预设亮度值和预设对比度值来计算第二对比度值的数量。 选择单元被配置为从对象的第二对比度值的数量中选择最大对比度值。