Method and apparatus for cleaning an optical disk head on the ba

Details Method and apparatus for cleaning an optical disk head on the ba Method and apparatus for cleaning an optical disk head on the ba

1995-05-12

1997-05-27

Levy, Stuart S.

Dynamic information storage or retrieval

With stylus cleaning or treatment

G11B 358

Patent

active

056338481

ABSTRACT:
An apparatus for reading information by projecting a light beam from an optical head onto an optical disk rotated by a spindle motor. The rotation time of the spindle motor is measured, and upon reaching a predetermined time, a cleaning request signal is sent to an upper order system. The rotation time of the spindle motor is counted by counting pulses generated with the rotation with a first counter stored in the RAM. Upon reaching a predetermined value by the count of the first counter, a second counter stored in a non-volatile memory is updated. Upon reaching a predetermined value by the second counter, a cleaning request is sent to the upper order system for display on a CRT, and a cleaning request flag in a non-volatile memory is set. When the end of cleaning of the apparatus is recognized, the cleaning request flag in the non-volatile memory is cleared.

REFERENCES:
patent: 5088082 (1992-02-01), Yamada et al.
patent: 5471451 (1995-11-01), Masaki et al.

Affiliated with

Also associated with

Rating

Method and apparatus for cleaning an optical disk head on the ba does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for cleaning an optical disk head on the ba, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for cleaning an optical disk head on the ba will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2334055