公开(公告)号：WO2011156951A1

公开(公告)日：2011-12-22

申请号：PCT/CN2010/073939

申请日：2010-06-13

Applicant: MEDIATEK SINGAPORE PTE. LTD. ,  LIU, Cong ,  HUANG, Chih-Chien

Inventor： LIU, Cong ,  HUANG, Chih-Chien

IPC: G11B7/125

CPC classification number: G11B7/1263

Abstract: A method for reducing a number of input terminals of an APC circuit is provided, where the APC circuit is arranged to control an optical pickup unit (OPU) within an optical storage device. The method includes: utilizing at least one switching module to ground one of a first and a second input terminals of the APC circuit at a time; and utilizing the switching module to electrically connect an APC front end within the APC circuit to a non-grounded input terminal of the first and the second input terminals, in order to receive a detection signal of a photo diode of the OPU through the non-grounded input terminal at the time. An associated APC circuit is also provided.

Abstract translation: 提供了一种用于减少APC电路的输入端的数量的方法，其中APC电路被布置成控制光学存储设备内的光学拾取单元（OPU）。 该方法包括：一次使用至少一个开关模块对APC电路的第一和第二输入端之一进行接地; 并且利用所述开关模块将所述APC电路内的APC前端电连接到所述第一和第二输入端子的非接地输入端子，以便通过所述非易失性存储器接收所述OPU的光电二极管的检测信号， 接地输入端子。 还提供了相关的APC电路。