Fringing field focus motor and mechanism for optical disk drive

Details Fringing field focus motor and mechanism for optical disk drive Fringing field focus motor and mechanism for optical disk drive

2005-11-29

2005-11-29

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044180, C369S044140

Reexamination Certificate

active

06970401

ABSTRACT:
A system for controlling a distance between an optical head and the surface of a rotating optical disk comprising: an actuator arm having a first and second surface, the first surface facing the optical disk, the second surface facing away from the optical disk; an electromagnetic coil having an inner void, said coil adjacent to the second surface of the arm; and at least one permanent magnet producing a magnetic field that passes through the coil such that when an electric current is applied to the coil, a force is created at two or more segments of the coil.

REFERENCES:
patent: 5440533 (1995-08-01), Fujimaki et al.
patent: 5465242 (1995-11-01), Terashima et al.
patent: 6236634 (2001-05-01), Lee et al.

Affiliated with

Also associated with

Rating

Fringing field focus motor and mechanism for optical disk drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fringing field focus motor and mechanism for optical disk drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fringing field focus motor and mechanism for optical disk drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3462498