Optical disk apparatus, optical head, and detection signal...

Details Optical disk apparatus, optical head, and detection signal... Optical disk apparatus, optical head, and detection signal...

2011-04-12

2011-04-12

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044340, C369S047200

Reexamination Certificate

active

07924664

ABSTRACT:
Disclosed herein is a technology that enables stable and high-speed writing and/or reading in an optical disk apparatus. The optical disk apparatus has an optical head that includes a first circuit for driving a laser diode, a second circuit for sampling and holding analog electric signals that are based on reflected laser light from the optical disk, and a third circuit for converting said signals being sampled and held into digital signals. Signals digitized in the optical head are transmitted to the apparatus body side using time-division multiplexing. The first circuit, the second circuit, and the third circuit are constructed on a single substrate or in a single IC.

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