INFORMATION PROCESSING APPARATUS, ACTIVATION METHOD OF INFORMATION PROCESSING APPARATUS, AND STORAGE MEDIUM

• US 20180129508A1
• Filed: 11/03/2017
• Published: 05/10/2018
• Est. Priority Date: 11/10/2016
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Wang, Xiaoli
• Granted Patent: US 10,656,954 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/3234 Power saving characterised by the action undertaken
• CPC Class Codes: G06F 3/0625 Power saving in storage systems
• CPC Class Codes: G06F 3/0647 Migration mechanisms
• CPC Class Codes: G06F 3/0673 Single storage device
• CPC Class Codes: G06F 8/63 Image based installation; Cloning; Build to order
• CPC Class Codes: G06F 9/4418 Suspend and resume; Hibernate and awake
• CPC Class Codes: G11C 11/40615 Internal triggering or timing of refresh, e.g. hidden refresh, self refresh, pseudo-SRAMs
• CPC Class Codes: H04N 1/00891 Switching on or off, e.g. for saving power when not in use H04N1/00896 takes precedence
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

An information processing apparatus of the invention includes a main system and a sub system, and executes activation processing on the basis of a boot image. The information processing apparatus includes: a saving unit configured to save the boot image which is developed in a first area of a storage unit in the sub system, in a second area which is different from the first area in the storage unit, in the activation processing of the sub system, in a case where the information processing apparatus is activated from a power off state; a restoration unit configured to restore the boot image which is saved in the second area to the first area in a case where the information processing apparatus is transitioned to a power saving state from a normal power state; and a holding unit configured to hold the restored boot image.

Claims

1. An information processing apparatus which includes a main system and a sub system, and executes activation processing of the sub system on the basis of a boot image transmitted from the main system, the information processing apparatus comprising:

a saving unit configured to save the boot image which is developed in a first area of a storage unit in the sub system, in a second area which is different from the first area in the storage unit, in the activation processing of the sub system, in a case where the information processing apparatus is activated from a power off state;

a restoration unit configured to restore the boot image which is saved in the second area to the first area, in a case where the information processing apparatus is transitioned to a power saving state from a normal power state; and

a holding unit configured to hold the restored boot image.

2. The information processing apparatus according to claim 1,

wherein the holding unit sets the storage unit to a self-refresh mode after the boot image is restored and cancel the setting of the self-refresh mode of the storage unit, in a case where the information processing apparatus is activated from the power saving state.

3. The information processing apparatus according to claim 1,

wherein the saving unit saves the boot image which is developed in the first area in the second area, after negotiation between the main system and the sub system is ended, in the activation processing of the sub system.

4. The information processing apparatus according to claim 3,

wherein in the negotiation, data for confirming communication of a communication path is transmitted and received, or data required for activation processing of an application operated in the sub system is transmitted and received.

5. The information processing apparatus according to claim 1,

wherein the saving unit saves the boot image which is developed in the first area in the second area immediately before an application operated in the sub system is activated, in the activation processing of the sub system.

6. The information processing apparatus according to claim 1,

wherein the saving unit acquires a snapshot of the first area, and saves the acquired snapshot in the second area, in the activation processing of the sub system.

7. The information processing apparatus according to claim 1,

wherein the sub system includes a sub device and a sub substrate controlling the sub device, and

the sub device is ready at least to respond to a received job in a case where the activation processing of the sub system is completed.

6-1. The information processing apparatus according to claim 7,

wherein the sub device is a FAX device, and

the FAX device is ready at least to respond to an incoming FAX from other FAX device in a case where the activation processing of the sub system is completed.

9. An activation method of an information processing apparatus which includes a main system and a sub system, and executes activation processing of the sub system on the basis of a boot image transmitted from the main system, the activation method comprising:

saving the boot image which is developed in a first area of a storage unit in the sub system, in a second area which is different from the first area in the storage unit, in the activation processing of the sub system, in a case where the information processing apparatus is activated from a power off state;

restoring the boot image which is saved in the second area to the first area, in a case where the information processing apparatus is transitioned to a power saving state from a normal power state; and

holding the restored boot image.

10. The activation method according to claim 9,

wherein in the holding step, the storage unit is set to a self-refresh mode after the boot image is restored and the setting of the self-refresh mode of the storage unit is canceled, in a case where the information processing apparatus is activated from the power saving state.

11. The activation method according to claim. 9,

wherein in the saving step, the boot image which is developed in the first area, is saved in the second area, after negotiation between the main system and the sub system is ended, in the activation processing of the sub system.

12. The activation method according to claim 11,

wherein in the negotiation, data for confirming communication of a communication path is transmitted and received, or data required for activation processing of an application operated in the sub system is transmitted and received.

13. The activation method according to claim 9,

wherein in the saving step, the boot image which is developed in the first area is saved in the second area, immediately before an application operated in the sub system is activated, in the activation processing of the sub system.

14. The activation method according to claim 9,

wherein in the saving step, a snapshot of the first area is acquired, and the acquired snapshot is saved in the second area, in the activation processing of the sub system.

15. The activation method according to claim 9,

wherein the sub system includes a sub device, and a sub substrate controlling the sub device, and

the sub device is ready at least to respond a received job in a case where the activation processing of the sub system is completed.

16. The activation method according to claim 15,

wherein the sub device is a FAX device, and

the FAX device is ready at least to respond an incoming FAX from other FAX device in a case where the activation processing of the sub system is completed.

17. A non-transitory computer readable storage medium storing a program for causing a computer to function as an information processing apparatus which includes a main system and a sub system, and executes activation processing of the sub system on the basis of a boot image transmitted from the main system,

where the information processing apparatus comprises:

a saving unit configured to save the boot image which is developed in a first area of a storage unit in the sub system, in a second area which is different from the first area in the storage unit, in the activation processing of the sub system, in a case where the information processing apparatus is activated from a power off state;

a restoration unit configured to restore the boot image which is saved in the second area to the first area in a case where the information processing apparatus is transitioned to a power saving state from a normal power state; and

a holding unit configured to hold the restored boot image.