Disk apparatus for projecting a laser beam onto a recording...

Details Disk apparatus for projecting a laser beam onto a recording... Disk apparatus for projecting a laser beam onto a recording...

2007-01-09

2007-01-09

Miller, Brian E. (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

C369S044250

Reexamination Certificate

active

10415348

ABSTRACT:
A disk apparatus (10) includes an optical lens (14). A seek operation is performed by moving the optical lens in a radius direction of a recording surface of a magnetooptical disk (40). When the seek operation is being operated, a TE signal detection circuit (26) generates a TE signal based on a laser beam reflected from the recording surface, and applies a generated TE signal to a DSP (34) via an A/D converter (32a). The DSP detects a peak level of the TE signal and a level change amount of the TE signal in a unit time, and generates a tracking actuator control voltage based on the detected peak level and the level change amount. A moving speed of the optical lens is controlled by a generated tracking actuator control voltage.

REFERENCES:
patent: 4495608 (1985-01-01), Kimura et al.
patent: 4698795 (1987-10-01), Yoshio
patent: 4719610 (1988-01-01), Bates et al.
patent: 1-259776 (1989-10-01), None
patent: 3-130934 (1991-06-01), None
patent: 5-89486 (1993-04-01), None

Affiliated with

Also associated with

Rating

Disk apparatus for projecting a laser beam onto a recording... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk apparatus for projecting a laser beam onto a recording..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk apparatus for projecting a laser beam onto a recording... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3792578