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Apparatus and method for controlling layer jump in optical disc drive
Apparatus and method for controlling layer jump in optical disc drive
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机译:用于控制光盘驱动器中的层跳的设备和方法
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摘要
A method for controlling layer jump in an optical disc drive is provided. In one embodiment of the present invention, upon request of layer jump, a circumferential position of a rotating disc can be compared with a predetermined circumferential position stored in a memory based on a signal generated at a spindle motor and layer jump operation can be performed at the predetermined circumferential position. The predetermined circumferential position can correspond to a position where displacement of a disc in up and down direction while the disc makes one rotation becomes largest and/or smallest. The predetermined circumferential position can be detected when an optical disc inserted is recognized to have two or more recording layers based on a driving signal applied to a focusing actuator at an outer circumference of the disc while a focusing servo is turned on.
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