Information processing apparatus with recording medium discharging mechanism for preventing change or loss of information of recording medium by temperature increase of the apparatus

• US 5,469,419 A
• Filed: 01/23/1995
• Issued: 11/21/1995
• Est. Priority Date: 12/15/1989
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Iida, Ichiro, Nakajima, Hideo, Ogino, Yoshitaka
• Primary Examiner(s): Psitos, Aristotelis
• Assistant Examiner(s): Tran, Thang V.
• Application Number:
  US08/376,668
• Time in Patent Office: 302 Days
• Field of Search: 369/58, 369/50, 369/32, 369/124, 369/33, 369/34, 369/13, 360/77.02, 360/97.03, 360/105, 360/99.02, 360/99.06, 360/69, 360/99.03, 360/99.05, 360/99.06, 360/99.07, 360/114, 360/97.04
• US Class Current: 369/53.12
• CPC Class Codes: G11B 11/10595 Control of operating function

Abstract

The present invention relates to an information processing apparatus for effecting information recording and/or reproduction on a recording medium loaded in the apparatus. The information processing apparatus comprises a detector for detecting the temperature of the medium and a medium discharging device for discharging the medium from the apparatus when the temperature detected by the detector exceeds a predetermined value so as to prevent change or loss of information recorded on the medium due to temperature increase of the apparatus. The information processing apparatus may further include a control device for suspending the discharge of the medium even when the detected temperature exceeds a predetermined value in the course of a recording or erasing operation, but discharging the medium in case a next operation is not started within a predetermined time after the end of the above operation.

Claims

1. An information processing apparatus for effecting a recording or reproducing operation for recording information on and/or reproducing information from a magnetooptical recording medium loaded in said apparatus, said apparatus comprising:

discharge means for discharging the magnetooptical recording medium from said apparatus;

detecting means for detecting a temperature in a vicinity of the magnetooptical recording medium; and

control means for controlling said discharging means by judging whether the temperature detected by said detecting means exceeds a predetermined value or not so as to cause said discharging means to discharge the magnetooptical recording medium from said apparatus in order to prevent information recorded on the magnetooptical recording medium from disappearing when it is judged that the detected temperature exceeds the predetermined value.

2. An apparatus according to claim 1, wherein said detecting means comprises a thermistor.

3. An apparatus according to claim 1, wherein said discharging means comprises an ejecting mechanism used for ordinary medium discharge.

4. An apparatus according to claim 1, wherein when said control means judges that the temperature detected by said detecting means exceeds the predetermined value during the recording or reproducing operation, said control means controls said discharge means to immediately interrupt the recording or reproducing operation and discharge the magnetooptical recording medium from said apparatus.

5. An information processing apparatus for effecting a recording operation or an erasing operation for recording information on and/or erasing information from a magnetooptical recording medium loaded in said apparatus, said apparatus comprising:

means for effecting recording of information on and/or erasure of information from the magnetooptical recording medium;

discharge means for discharging the magnetooptical recording medium from said apparatus;

detecting means for detecting a temperature in a vicinity of the magnetooptical recording medium; and

control means for judging whether the temperature detected by said detecting means exceeds a predetermined elevated temperature lower than a temperature at which information recorded on the magnetooptical recording medium is destroyed, and for controlling said discharge means so as to cause said discharge means to discharge the magnetooptical recording medium from said apparatus in order to prevent information recorded on the magnetooptical recording medium from disappearing when said control means judges that the detected temperature exceeds the predetermined elevated temperature except during the recording or erasing operation or within a predetermined time period after completion of the recording or erasing operation, the predetermined time period being set to accommodate proper completion of the recording or erasing operation.

6. An apparatus according to claim 5, further comprising abnormality detecting means for detecting an abnormality of a tracking and/or focusing servo during the recording or erasing operation, wherein when said abnormality detecting means detects an abnormality, said control means prohibits the discharge of the magnetooptical recording medium from said apparatus until a predetermined period of time has passed after detecting the abnormality even when it is judged that the detected temperature exceeds the predetermined elevated temperature.

7. An apparatus according to claim 5, wherein said detecting means comprises a thermistor.

8. An apparatus according to claim 5, wherein said discharging means comprises an ejecting mechanism used for ordinary discharge of the magnetooptical recording medium.

9. An information processing method for effecting a recording or reproducing operation for recording information on and/or reproducing information from a magnetooptical recording medium loaded in an information processing apparatus, said method comprising the steps of:

detecting a temperature in a vicinity of the magnetooptical recording medium;

judging whether the temperature detected in said detecting step exceeds a predetermined value or not; and

discharging the magnetooptical recording medium from the apparatus so as to prevent information recorded on the magnetooptical recording medium from disappearing when it is judged in said judging step that the temperature detected in said detecting step exceeds the predetermined value.

10. An information processing method for effecting a recording or reproducing operation for recording information on and/or reproducing information from a magnetooptical recording medium loaded in an information processing apparatus, said method comprising the steps of:

detecting a temperature in a vicinity of the magnetooptical recording medium;

judging whether the temperature detected in said detecting step exceeds a predetermined value or not; and

immediately interrupting recording or reproducing when it is judged in said judging step that the detected temperature exceeds the predetermined value during the recording or reproducing operation and discharging the magnetooptical recording medium from the apparatus so as to prevent information recorded on the magnetooptical recording medium from disappearing.

11. An information processing method for effecting a recording or reproducing operation for recording information on and/or reproducing information from a magnetooptical recording medium loaded in an information processing apparatus, said method comprising the steps of:

detecting a temperature in a vicinity of the magnetooptical recording medium;

judging whether the temperature detected in said detecting step exceeds a predetermined elevated temperature lower than a temperature at which information recorded on the magnetooptical recording medium is destroyed; and

discharging the magnetooptical recording medium from the apparatus after completion of the recording or reproducing operation so as to prevent information recorded on the magnetooptical recording medium from disappearing when it is judged in said judging step that the detected temperature exceeds the predetermined elevated temperature during the recording or reproducing operation.

12. An information processing method for effecting a recording or erasing operation for recording information on and/or erasing information from a magnetooptical recording medium loaded in an information processing apparatus, said method comprising the steps of:

effecting recording of information on and/or erasure of information from the magnetooptical recording medium;

detecting a temperature in a vicinity of the magnetooptical recording medium;

judging whether the temperature detected in said detecting step exceeds a predetermined elevated temperature lower than a temperature at which information recorded on the magnetooptical recording medium is destroyed;

discharging the magnetooptical recording medium from the apparatus so as to prevent information recorded on the magnetooptical recording medium from disappearing when it is judged in said judging step that the detected temperature exceeds the predetermined elevated temperature; and

prohibiting discharge of the magnetooptical recording medium from the apparatus during the recording or erasing operation or within a predetermined time period after completion of the recording or erasing operation even when it is judged in said judging step that the detected temperature exceeds the predetermined elevated temperature, the predetermined time period being set to accommodate proper completion of the recording or erasing operation.

13. An information processing apparatus for effecting a recording operation or a reproducing operation for recording information on and/or reproducing information from a magnetooptical recording medium loaded in said apparatus, said apparatus comprising:

discharging means for discharging the magnetooptical recording medium from said apparatus;

detecting means for detecting a temperature in a vicinity of the magnetooptical recording medium when the magnetooptical recording medium is loaded in the apparatus; and

control means for controlling said discharging means by judging whether or not the temperature detected by said detecting means exceeds a predetermined elevated temperature lower than a temperature at which information recorded on the magnetooptical recording medium is destroyed;

so as to cause said discharging means to discharge the magnetooptical recording medium from said apparatus after the judgement in order to prevent information recorded on the magnetooptical recording medium from disappearing when it is judged that the detected temperature exceeds the predetermined elevated temperature but before reaching the temperature at which information recorded on the magnetooptical recording medium is destroyed.

14. An information processing method for effecting a recording operation or a reproducing operation for recording information on or reproducing information from a magnetooptical recording medium loaded in an apparatus, said method comprising the steps of:

detecting a temperature in a vicinity of the magnetooptical recording medium when the magnetooptical recording medium is loaded in the apparatus;

judging whether the temperature detected in said detecting step exceeds a predetermined elevated temperature but before reaching the temperature at which information recorded on the magnetooptical recording medium is destroyed; and

discharging the magnetooptical recording medium from the apparatus after the judgement in order to prevent information recorded on the magnetooptical recording medium from disappearing when it is judged in said judging step that the temperature detected in said detecting step exceeds the predetermined elevated temperature but before reaching the temperature at which information recorded on the magnetooptical recording medium is destroyed.