Lens movement control method and lens movement control apparatus of camera module
AssigneeSamsung Electronics Co., Ltd.
InventorJoon Heo
Life of this patent
Estimating the term…
Abstract
A lens movement control method and a lens movement control apparatus of a camera module for preventing allophone of a Voice Coil Actuator (VCA) are provided. The lens movement control method of a camera module includes switching the camera module from a camera operation mode to a camera stop mode, generating a control signal for removing the occurrence of VCA allophone in the camera stop mode, moving a lens to a VCA allophone removal location based on the generated control signal, and powering-off the camera module to move the lens moved to the VCA allophone removal location to a bottom surface of the lens.
Claims8
A lens movement control method of a camera module, the method comprising:
- switching the camera module from a camera operation mode to a camera stop mode;
- generating a control signal for removing the occurrence of Voice Coil Actuator (VCA) allophone in the camera stop mode;
- moving a lens to a VCA allophone removal location based on the generated control signal;
- and
- powering-off the camera module to move the lens moved to the VCA allophone removal location to a bottom surface of the lens.
A lens movement control apparatus of a camera module, the apparatus comprising:
- a mode switch for switching the camera module from a camera operation mode to a camera stop mode;
- a Voice Coil Actuator (VCA) allophone removal controller for generating a control signal for removing the occurrence of a VCA allophone;
- a lens driving unit for moving a lens to a VCA allophone removal location under control of the VCA allophone removal controller;
- and
- a camera power controller for controlling a power off of the camera module to move the lens moved to the VCA allophone removal location to a bottom surface of the lens.
Dependencies are inferred from the claim text.