Browse Prior Art Database

Clean and Clean-Verify Optical Disk Cartridge

IP.com Disclosure Number: IPCOM000121191D
Original Publication Date: 1991-Jul-01
Included in the Prior Art Database: 2005-Apr-03
Document File: 1 page(s) / 67K

Publishing Venue

IBM

Related People

Patton, DL: AUTHOR [+2]

Abstract

A hybrid optical disk cleaner/data cartridge is described. This hybrid optical cartridge is made from a standard optical data disk (10) which spins about axis of rotation (11). The inner zone of one or both sides of this optical disk would be covered with a cleaning material (20). The outer zone (30) of the optical disk would be exposed for reading and writing. This outer zone would have a pre-written message in the data area which effectively reads "The objective lens is clean."

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 53% of the total text.

Clean and Clean-Verify Optical Disk Cartridge

      A hybrid optical disk cleaner/data cartridge is described. This
hybrid optical cartridge is made from a standard optical data disk
(10) which spins about axis of rotation (11).  The inner zone of one
or both sides of this optical disk would be covered with a cleaning
material (20).  The outer zone (30) of the optical disk would be
exposed for reading and writing.  This outer zone would have a
pre-written message in the data area which effectively reads "The
objective lens is clean."

      Upon loading, the optical drive would spin up this hybrid
cleaner/data disk up to a low rpm, X.   Then the optical carriage
(40) would do a coarse seek to the inner zone and effect a cleaning
of the laser objective lens (41) against the cleaning material (20).
After a preset number of disk revolutions, the optical carriage (40)
would seek to the data area (30) of the hybrid cleaner/data disk.
The drive would accelerate to Y rpm and attempt to read the message
"The objective lens is clean."  The drive could attempt to write and
verify data in this outer zone, as well.  Although X rpm is expected
to be less than Y rpm, they could be equal.

      If the message "The objective lens is clean" was successfully
read and write-verify operations were also successfully completed,
then the cleaning operation was verified.  Before spindown, the drive
could read the number of times this cleaner cartridge was used,
increment that...