首页>
外国专利>
Method for reducing lead in time in an optical disk recording or reproducing apparatus capable of processing data for multiple types of disks
Method for reducing lead in time in an optical disk recording or reproducing apparatus capable of processing data for multiple types of disks
展开▼
机译:用于减少能够处理多种类型的盘的数据的光盘记录或再现设备中的时间提前量的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for rapidly implementing the data processing for an optical disk in an optical disk recording or reproducing apparatus capable of reproducing data from multiple types of disks. The method includes the steps of turning on a laser of a pickup device, setting the pickup device at an initial position, and driving a timer; obtaining a minimum tracking error point from an optical disk while vertically moving the pickup device from the initial position to the optical disk at a constant velocity; detecting a thickness of the optical disk from a value of the timer at the time when the minimum tracking error point is obtained and from the constant velocity during the vertical movement of the pickup device; obtaining minimum tracking error points between tracks on the optical disk while horizontally moving the pickup device at a constant velocity, at the time when the minimum tracking error point is obtained; detecting a pitch size between the tracks from a period between the minimum tracking error points and from the constant velocity during the horizontal movement of the pickup device; and discriminating the type of disk from the detected thickness of the optical disk and the detected pitch size between the tracks.
展开▼