Information processing apparatus and state control method of the same apparatus
OwnerAkihiro Kojouinventor
Life of this patent
Estimating the term…
Abstract
According to a state control method used for an information processing apparatus of the present invention, an OS transits each device state of predetermined devices configuring the system of a computer to a state D3. Devices capable of transiting to D3hot are transited to a state D3hot, on the other hand, devices incapable of transiting to D3hot are transited to a state D3cold. A system BIOS determines that an AC adapter is in a connected state. If a device transiting to the state D3cold exists, the system BIOS initializes the devices of state D3cold to transit them to a state D0. Thereafter, the system BIOS transits the state of a CPU to a state Cx.
Claims17
An information processing apparatus comprising:
- a device configured to support a specification defined in ACPI;
- a processor configured to support a specification defined in ACPI;
- a first state control unit configured to transit a state of the device to a first state requiring no initialization in return;
- and
- a second state control unit configured to transit a state of the processor to a second state requiring no initialization in return.
An information processing apparatus comprising:
- a device configured to support a specification defined in ACPI;
- a processor configured to support a specification defined in ACPI;
- a first state control unit configured to transit a state of the device to a state D3hot and transit a state of a device incapable of transiting to the state D3hot to a state D3cold;
- a unit configured to initialize the device of the state D3cold after transiting the state of the device to the state D3cold;
- and
- a second state control unit configured to transit a state of the processor to a state Cx.
A state control method used for an information processing apparatus including a device configured to support a specification defined in ACPI and a processor configured to support a specification defined in ACPI, the comprising:
- transiting a state of the device to a first state requiring no initialization in return;
- and
- transiting a state of the processor to a second state requiring no initialization in return.
Dependencies are inferred from the claim text.