Invention Grant
- Patent Title: Apparatus for driving voice coil actuator of camera and method thereof
- Patent Title (中): 照相机音圈驱动器驱动装置及其方法
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Application No.: US12773783Application Date: 2010-05-04
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Publication No.: US08379903B2Publication Date: 2013-02-19
- Inventor: Min-Joung Ko , Jin Park , Jung Hyun Lee , Seung-Kwon Lee
- Applicant: Min-Joung Ko , Jin Park , Jung Hyun Lee , Seung-Kwon Lee
- Applicant Address: KR Seoul
- Assignee: Dongwoon Anatech Co., Ltd.
- Current Assignee: Dongwoon Anatech Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Knobbe Martens Olson & Bear LLP
- Priority: KR10-2009-0135487 20091231
- Main IPC: H04R1/00
- IPC: H04R1/00

Abstract:
An apparatus and a method for driving a voice coil actuator of a camera are disclosed. In the apparatus for driving a voice coil actuator of a camera, when an input shaping execution unit generates a shaping signal using a resonance frequency of the voice coil actuator to output a drive control signal subjected to input shaping, a drive circuit unit controls an operation of the voice coil actuator connected to a rear end according to the drive control signal using the shaping signal as an initial input. The shaping signal is used for removing resonance of the voice coil actuator and may be one of a 2-step shaping signal, a multi-step shaping signal having 4 or more steps, a linear shaping signal, a toggle shaping signal and the like.
Public/Granted literature
- US20110158461A1 APPARATUS FOR DRIVING VOICE COIL ACTUATOR OF CAMERA AND METHOD THEREOF Public/Granted day:2011-06-30
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