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发明公开
CN1484224A 应用于寻轨控制的缓冲区设定系统 失效 - 权利终止

应用于寻轨控制的缓冲区设定系统
摘要：
本发明为一种缓冲区设定系统，应用于包含光学读写头的光学读写装置中。本发明在所述光学读写装置进行寻轨动作(seek)后进入跟踪闭环回路(tracking close loop)时，设定包含有复数个缓冲块的缓冲区，以使光学读写头可在缓冲区内先缓冲稳定后继而锁定在目标存储轨道中的目标块以读取数据。该设定系统包含缓冲时间计算模块和缓冲块设定模块。缓冲时间计算模块用于计算缓冲时间。缓冲块设定模块内记录有稳定时间。根据该稳定时间以及该缓冲时间，由预定的设定程序设定该缓冲区中所应包含的缓冲块的数目。因此，本发明所设定的缓冲区不会包含过多或过少的缓冲块，使得该光学读写头可以稳定地锁定该目标块。
摘要（英）：

The invention is a kind of buffer setting system, applies in optical reading and writing device. The invention sets buffer with plural buffer blocks after the device caries trail seek and enters the tracking close loop, after the optical read-write head is stable in the buffer, subsequently locks the goal block in goal memory track in order to read data. The system includes buffer time calculating module and buffer block setting module. The calculating module is used to calculate the buffer time. The buffer setting module records the stable time. It determines the quantity of the buffer blocks in buffer area by the preset program according to the stable time and the buffer time.

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