Tracking speed control method performed in optical pickup servo system and apparatus for performing same

摘要

Disclosed are a tracking speed control method performed in an optical pickup servo system and an apparatus for performing the same. The method sets the timer value and the mode to the acceleration mode, determines whether an interrupt desired to control the tracking speed has occurred, and if so, decreases the timer value by a predetermined number, determines whether the rising edge of the mirror signal, If the mirror signal is at the rising edge, it is determined whether the mode is the deceleration mode. If the mode is not the deceleration mode, it is determined again that an interrupt has occurred. Determine the level of the signal, determine again whether an interrupt has occurred, and if it is the rising edge of the mirror signal, multiply the reduced timer value by the negative first predetermined value to obtain the level of the tracking drive signal, and the number of tracks currently jumped jumps. If it is determined that the number of target tracks is to be performed and the number of tracks is not the number of target tracks, is the remaining track number less than or equal to the second predetermined value? And if it is equal to or less than the second predetermined value, set the mode to the deceleration mode, and after setting the number of remaining tracks to be greater than the second predetermined value or to the deceleration mode, newly set the timer value and again determine whether an interrupt has occurred. It is characterized in that, there is an effect that can reduce the tracking speed more stably.