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1. 发明申请

US20150116579A1 APPARATUS AND METHOD FOR DRIVING A VOICE COIL MOTOR OF A CAMERA LENS 有权
标题翻译：用于驱动摄像机镜头的声音线圈电机的装置和方法
公开(公告)号：US20150116579A1
公开(公告)日：2015-04-30
申请号：US14063840
申请日：2013-10-25
申请人： Hong Zhang , Qing Yang , Hong Ru Xu , Cheng Zhang
发明人： Hong Zhang , Qing Yang , Hong Ru Xu , Cheng Zhang
IPC分类号： H04N5/232
CPC分类号： H04N5/23212
摘要： The present invention relates to a device and method for driving an under damped voice coil motor (VCM) actuator of a camera lens. In one embodiment, the device for driving an under damped VCM actuator comprises a first generator operable to read a first manufacture data from an image signal processor (ISP) and to generate a half natural period, ½ Td, of the VCM actuator by selecting a value approximate to the first data in a first table of the device, a second generator operable to read a second manufacture data from the ISP and to generate the maximum overshoot, K, of the VCM actuator by selecting a value approximate to the second data in a second table of the device, an input shaping signal generator operable to read an input signal corresponding to a desired camera lens moving distance from the ISP and to generate a shaping signal according to the value of the half natural period and the maximum overshoot. The input shaping signal may be produced from second order, third order and fourth order input shaping function. The present invention also provides a simple implementation of a driver configuration to achieve a fast camera lens focus speed, yet robust to tolerate actual system deviation from a manufacture design.
摘要翻译：本发明涉及用于驱动照相机镜头的下阻尼音圈电机（VCM）致动器的装置和方法。在一个实施例中，用于驱动下阻尼VCM致动器的装置包括第一发生器，其可操作以从图像信号处理器（ISP）读取第一制造数据，并且通过选择一个VCM致动器来产生半自然周期（1/2 Td）值接近装置的第一表中的第一数据，第二发生器可操作以从ISP读取第二制造数据，并通过选择近似于第二数据的值来产生VCM致动器的最大过冲K 该设备的第二表，输入整形信号发生器，其可操作以读取对应于来自ISP的期望的相机镜头移动距离的输入信号，并根据半自然周期和最大过冲的值生成整形信号。输入整形信号可以由二阶，三阶和四阶输入整形功能产生。本发明还提供了驱动器配置的简单实现，以实现快速的相机镜头聚焦速度，而且可以耐受实际的系统与制造设计的偏差。

2. 发明授权

US09049366B2 Apparatus and method for driving a voice coil motor of a camera lens 有权
标题翻译：用于驱动摄像机镜头的音圈电机的装置和方法
公开(公告)号：US09049366B2
公开(公告)日：2015-06-02
申请号：US14063840
申请日：2013-10-25
申请人： Hong Zhang , Qing Yang , Hong Ru Xu , Cheng Zhang
发明人： Hong Zhang , Qing Yang , Hong Ru Xu , Cheng Zhang
IPC分类号： H04N5/225 , G03B15/03 , G02B7/02 , H04N5/232
CPC分类号： H04N5/23212
摘要： The present invention relates to a device and method for driving an under damped voice coil motor (VCM) actuator of a camera lens. In one embodiment, the device for driving an under damped VCM actuator comprises a first generator operable to read a first manufacture data from an image signal processor (ISP) and to generate a half natural period, ½ Td, of the VCM actuator by selecting a value approximate to the first data in a first table of the device, a second generator operable to read a second manufacture data from the ISP and to generate the maximum overshoot, K, of the VCM actuator by selecting a value approximate to the second data in a second table of the device, an input shaping signal generator operable to read an input signal corresponding to a desired camera lens moving distance from the ISP and to generate a shaping signal according to the value of the half natural period and the maximum overshoot. The input shaping signal may be produced from second order, third order and fourth order input shaping function. The present invention also provides a simple implementation of a driver configuration to achieve a fast camera lens focus speed, yet robust to tolerate actual system deviation from a manufacture design.
摘要翻译：本发明涉及用于驱动照相机镜头的下阻尼音圈电机（VCM）致动器的装置和方法。在一个实施例中，用于驱动下阻尼VCM致动器的装置包括第一发生器，其可操作以从图像信号处理器（ISP）读取第一制造数据，并且通过选择一个VCM致动器来产生半自然周期（1/2 Td）值接近装置的第一表中的第一数据，第二发生器可操作以从ISP读取第二制造数据，并通过选择近似于第二数据的值来产生VCM致动器的最大过冲K 该设备的第二表，输入整形信号发生器，其可操作以读取对应于来自ISP的期望的相机镜头移动距离的输入信号，并根据半自然周期和最大过冲的值生成整形信号。输入整形信号可以由二阶，三阶和四阶输入整形功能产生。本发明还提供了驱动器配置的简单实现，以实现快速的相机镜头聚焦速度，而且可以耐受实际的系统与制造设计的偏差。

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