公开(公告)号：US20040062182A1

公开(公告)日：2004-04-01

申请号：US10664688

申请日：2003-09-18

Applicant: Cirrus Logic, Inc.

Inventor： David Michael Pietruszynski ,  Rex Baird

IPC: G11B009/00

CPC classification number: H03F3/087 ,  G11B7/005 ,  G11B7/13 ,  H03F2200/331

Abstract: An optical disk pickup system includes an array of photodiodes 101 for converting photons reflected from an optical disk into a plurality of electrical signals each representing a channel. Driving circuitry 407, 408 drives at least one of the electrical signals as a current across a conductor of a flexible cable 403. A low impedance load 404 converts the electrical signal driven across the conductor as a current into a voltage for further processing.

Abstract translation: 光盘拾取系统包括用于将从光盘反射的光子转换为每个表示通道的多个电信号的光电二极管阵列101。 驱动电路407,408将电信号中的至少一个作为跨越柔性电缆403的导体的电流驱动。低阻抗负载404将作为电流驱动的导体的电信号转换为用于进一步处理的电压。