Browse Prior Art Database

Automatic Retraction of CD-ROM Loader Tray

IP.com Disclosure Number: IPCOM000116925D
Original Publication Date: 1995-Nov-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Dente, JJ: AUTHOR [+2]

Abstract

Some CD-ROM devices accept the bare CD-ROM disk, rather than a jewel box. These CD-ROM devices have a tray which extends out from the device to accept a new disk or to release an old disk. When electrically powered, this tray will stay extended until a close-tray switch is pushed. Thus, the tray can remain extended for arbitrarily long periods of time, letting in dust laden air and exposing the tray to damage from an accidental bump. This invention proposes that the tray retract itself after a period of inactivity.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 69% of the total text.

Automatic Retraction of CD-ROM Loader Tray

      Some CD-ROM devices accept the bare CD-ROM disk, rather than a
jewel box.  These CD-ROM devices have a tray which extends out from
the device to accept a new disk or to release an old disk.  When
electrically powered, this tray will stay extended until a close-tray
switch is pushed.  Thus, the tray can remain extended for arbitrarily
long periods of time, letting in dust laden air and exposing the tray
to damage from an accidental bump.  This invention proposes that the
tray retract itself after a period of inactivity.

      This period of inactivity could be triggered by the low-power
mode that energy efficient (Energy Star compliant) computers now
enter in.  Just before entering the low-power mode, a PC with an
extended CD-ROM tray would retract that tray.

      Alternately, a CD-ROM could have its own tray retraction
timeout, say 10 minutes.  This timeout could be user defined.

      By automatically retracting the tray of the CD-ROM device, the
influx of debris into the CD-ROM will be reduced.  Also, an extended
and forgotten tray can be easily damaged.  It is better to retract
forgotten trays than to replace the entire CD-ROM device.

      For CD-ROM drives which have trays which are either manually
pushed back or electrically retracted into the device, a "Warning:
CD-ROM tray extended" icon could also be displayed on the terminal of
the PC some X minutes after the tray is left in an exten...