Information processing apparatus and control method for information processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorMinoru Hashimoto
Life of this patent
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Abstract
An image forming apparatus includes a solid state drive (SSD) that stores information, a Serial Advanced Technology Attachment (SATA) controller that reads information from the SSD, writes information to the SSD, and transmits a device sleep (DEVSLP) signal for shifting the SSD to a DEVSLP state, and a power source control unit that can stop power to the SATA controller and transmits the DEVSLP signal for shifting the SSD to the DEVSLP state during a period in which the power to the SATA controller is stopped.
Claims20
An information processing apparatus comprising:
- a storage device configured to store information;
- a memory control unit configured to read information from the storage device, to write information to the storage device, and to transmit a signal for shifting the storage device to a predetermined power saving state;
- and
- a power control unit configured to stop power to the memory control unit and to transmit a signal for shifting the storage device to the predetermined power saving state during a period in which the power to the memory control unit is stopped.
A method for controlling an information processing apparatus including a storage device configured to store information, a memory control unit configured to read information from the storage device, to write information to the storage device, and to transmit a signal for shifting the storage device to a predetermined power saving state, and a power control unit configured to stop power to the memory control unit, the method comprising:
- causing the memory control unit to transmit a signal for shifting the storage device to the predetermined power saving state during a period in which the power is supplied to the memory control unit;
- and
- causing the power control unit to transmit a signal for shifting the storage device to the predetermined power saving state during a period in which the power to the memory control unit is stopped.
An information processing apparatus including a storage device configured to store information, the information processing apparatus comprising:
- a memory control unit configured to read information from the storage device, to write information to the storage device, and to transmit a signal for shifting the storage device to a predetermined power saving state;
- a power control unit configured to stop power to a first power source domain including the memory control unit;
- and
- a signal transmission unit included in a power source domain different from the first power source domain and configured to transmit a signal for shifting the storage device to the predetermined power saving state during a period in which the power to the first power source domain is stopped.
Dependencies are inferred from the claim text.