Disk drive apparatus and imaging apparatus having the disk drive apparatus for controlling a state thereof based on a detected temperature

• US 7,580,215 B2
• Filed: 12/06/2006
• Issued: 08/25/2009
• Est. Priority Date: 12/28/2005
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kobayashi, Kou, Morimoto, Tetsuo, Imai, Kenichiro, Watanabe, Katsuhiko
• Primary Examiner(s): Nguyen; Hoa T
• Assistant Examiner(s): HABERMEHL, JAMES LEE
• Application Number:
  US11/635,453
• Publication Number:
  US 20070146923A1
• Time in Patent Office: 993 Days
• Field of Search: None
• US Class Current: 360/69
• CPC Class Codes: G11B 19/04 Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
• CPC Class Codes: G11B 19/046 Detection or prevention or problems due to temperature
• CPC Class Codes: G11B 33/144 by detection, control, regulation of the temperature

Abstract

A disk drive apparatus having access to a disk-shaped recording medium includes: a temperature detecting mechanism configured to detect an internal temperature; and a temperature control mechanism configured to change the disk drive apparatus to either an operating state or a stop state based on a change in the internal temperature, wherein a first temperature and a second temperature are different from each other, the temperature control mechanism changes the disk drive apparatus to the stop state at the first temperature and to the operating state at the second temperature.

Claims

1. A disk drive apparatus having access to a disk-shaped recording medium, comprising:

temperature detecting means for detecting an internal temperature;

temperature control means for changing the disk drive apparatus to either an operating state or a stop state based on a change in the internal temperature; and

storage means for storing information pertaining to the internal temperature when power for the disk drive apparatus is turned off,

wherein a first temperature and a second temperature are different from each other, and the temperature control means changes the disk drive apparatus to the stop state at the first temperature and to the operating state at the second temperature, and

the temperature control means restores a criterion of the internal temperature based on the information stored in the storage means when power for the disk drive apparatus is turned on.

2. The disk drive apparatus according to claim 1,

wherein the first temperature is lower than the second temperature,

wherein the temperature control means changes the disk drive apparatus to the stop state when the internal temperature drops from a high temperature to a temperature lower than the first temperature, whereas it changes the disk drive apparatus to the operating state when the internal temperature rises from a low temperature to a temperature higher than the second temperature.

3. The disk drive apparatus according to claim 2, further comprising:

heating means for increasing the internal temperature,

wherein the temperature control means activates the heating means when the internal temperature drops from a high temperature to a temperature lower than the first temperature, whereas it stops the heating means when the internal temperature rises from a low temperature to a temperature higher than the second temperature.

4. The disk drive apparatus according to claim 1,

wherein the first temperature is higher than the second temperature,

wherein the temperature control means changes the disk drive apparatus to the stop state when the internal temperature rises from a low temperature to a temperature higher than the first temperature, whereas it changes the disk drive apparatus to the operating state when the internal temperature drops from a high temperature to a temperature lower than the second temperature.

5. The disk drive apparatus according to claim 4, further comprising:

cooling means for cooling the internal temperature,

wherein the temperature control means activates the cooling means when the internal temperature rises from a low temperature to a temperature higher than the first temperature, whereas it stops the cooling means when the internal temperature drops from a high temperature to a temperature lower than the second temperature.

6. A disk drive apparatus having access to a disk-shaped recording medium, comprising:

temperature detecting means for detecting an internal temperature;

temperature control means for changing the disk drive apparatus to either an operating state or a stop state based on a change in the internal temperature;

manipulation accepting means for accepting a manipulation instruction of power on or off of the disk drive apparatus; and

storage means for storing information about the internal temperature when the manipulation instruction of power off is accepted,

wherein a first temperature and a second temperature are different from each other, and the temperature control means changes the disk drive apparatus to the stop state at the first temperature and to the operating state at the second temperature, and

wherein when the manipulation instruction of power on is accepted, the temperature control means restores a criterion for the internal temperature based on information stored in the storage means.

7. The disk drive apparatus according to claim 6, further comprising:

a timer configured to clock current time,

wherein the storage means stores the current time as stored time along with information about the internal temperature, and

when the manipulation instruction of power on is accepted, the temperature control means restores a criterion for the internal temperature only when the stored time stored in the storage means is within a predetermined time period from the current time clocked by the timer.

8. An imaging apparatus having a disk drive apparatus which has access to a disk-shaped recording medium, the imaging apparatus comprising:

imaging means for imaging an image to record it as image data in the disk drive apparatus;

reproducing means for reading the image data out of the disk drive apparatus for reproduction;

temperature detecting means for detecting a temperature of the disk drive apparatus;

temperature control means for changing the disk drive apparatus to either an operating state or a stop state based on a change in the temperature of the disk drive apparatus; and

storage means for storing information pertaining to the temperature of the disk drive apparatus when power for the disk drive apparatus is turned off,

wherein the temperature control means changes the disk drive apparatus to the stop state at a first temperature and to the operating state at a second temperature, which are different from each other, and

the temperature control means restores a criterion of the temperature of the disk drive apparatus based on the information stored in the storage means when power for the disk drive apparatus is turned on.

9. A control method of a disk drive apparatus having access to a disk-shaped recording medium, comprising the steps of:

detecting an internal temperature;

maintaining the disk drive apparatus in a stop state when the internal temperature is lower than a first temperature;

maintaining the disk drive apparatus in an operating state when the internal temperature is higher than a second temperature that is higher than the first temperature;

changing the disk drive apparatus to the stop state when the internal temperature drops from a high temperature to a temperature lower than the first temperature; and

changing the disk drive apparatus to the operating state when the internal temperature rises from a low temperature to a temperature higher than the second temperature;

storing information pertaining to the internal temperature when power for the disk drive apparatus is turned off; and

restoring a criterion of the internal temperature based on the stored information pertaining to the internal temperature when power for the disk drive apparatus is turned on.

10. A computer readable medium having stored thereon a computer readable program configured to allow a computer to execute procedures in a disk drive apparatus having access to a disk-shaped recording medium, said program comprising the steps of:

detecting an internal temperature;

maintaining the disk drive apparatus in a stop state when the internal temperature is lower than a first temperature;

maintaining the disk drive apparatus in an operating state when the internal temperature is higher than a second temperature that is higher than the first temperature;

changing the disk drive apparatus to the stop state when the internal temperature drops from a high temperature to a temperature lower than the first temperature; and

changing the disk drive apparatus to the operating state when the internal temperature rises from a low temperature to a temperature higher than the second temperature;

storing information pertaining to the internal temperature when power for the disk drive apparatus is turned off; and

restoring a criterion of the internal temperature based on the stored information pertaining to the internal temperature when power for the disk drive apparatus is turned on.

11. A disk drive apparatus having access to a disk-shaped recording medium, comprising:

a temperature detecting mechanism configured to detect an internal temperature; and

a temperature control mechanism configured to change the disk drive apparatus to either an operating state or a stop state based on a change in the internal temperature; and

a storage unit to store information pertaining to the internal temperature when power for the disk drive apparatus is turned off,

wherein a first temperature and a second temperature are different from each other, the temperature control mechanism changes the disk drive apparatus to the stop state at the first temperature and to the operating state at the second temperature, and

the temperature control mechanism restores a criterion of the internal temperature based on the information stored in the storage unit when power for the disk drive apparatus is turned on.

12. An imaging apparatus having a disk drive apparatus having access to a disk-shaped recording medium, the imaging apparatus comprising:

an imaging mechanism configured to image an image to record it as image data in the disk drive apparatus;

a reproducing mechanism configured to read the image data out of the disk drive apparatus for reproduction;

a temperature detecting mechanism configured to detect a temperature of the disk drive apparatus; and

a temperature control mechanism configured to change the disk drive apparatus to either operating state or stop state based on a change in the temperature of the disk drive apparatus; and

a storage unit to store information pertaining to the temperature of the disk drive apparatus when power for the disk drive apparatus is turned off,

wherein the temperature control mechanism changes the disk drive apparatus to the stop state when the internal temperature drops from a high temperature to a temperature lower than the first temperature, whereas it changes the disk drive apparatus to the operating state when the internal temperature rises from a low temperature to a temperature higher than the second temperature, and

the temperature control mechanism restores a criterion of the temperature of the disk drive apparatus based on the information stored in the storage unit when power for the disk drive apparatus is turned on.