Electronic apparatus and method of controlling power supply

1. An information processing apparatus, comprising:

circuitry configured to:

receive a detection result of a sensor associated with a head-mounted optical device; and

determine a state of the head-mounted optical device based on the detection result, wherein the determined state is one of a first state in which the head-mounted optical device is worn by a user in a usable state or a second state in which the head-mounted optical device is worn by the user in an unusable state; and

a power supply controller configured to:

control a power supply state of at least one of the information processing apparatus or the head-mounted optical device based on the determination; and

control an operation of a touch sensor of the head-mounted optical device based on the controlled power supply state.

2. The information processing apparatus according to claim 1 , wherein the sensor includes an acceleration sensor.

3. The information processing apparatus according to claim 2 , wherein the circuitry is further configured to determine the state based on a detection value obtained by the acceleration sensor.

4. The information processing apparatus according to claim 3 , wherein the circuitry is further configured to determine the state of the head-mounted optical device as the second state based on a direction of a gravitational acceleration component detected by the acceleration sensor.

5. The information processing apparatus according to claim 4 , wherein the circuitry is further configured to determine the state of the head-mounted optical device as the second state based on a continuation of the direction of the gravitational acceleration component for a threshold time.

6. The information processing apparatus according to claim 1 , wherein

the head-mounted optical device includes an attachment member usable for attachment to a head of the user, and

the sensor detects a state of the attachment member.

7. The information processing apparatus according to claim 6 , wherein

the attachment member includes a connection part,

the sensor detects a state of the connection part, and

the circuitry is further configured to determine the state of the head-mounted optical device based on the detected state of the connection part.

8. The information processing apparatus according to claim 6 , wherein

the attachment member is elastically deformable,

the circuitry is further configured to

determine the state of the head-mounted optical device as the second state based on the detected state of the attachment member that is an elastically deformed state of the attachment member, and

the attachment member is elastically deformed in the elastically deformed state.

9. The information processing apparatus according to claim 1 , wherein the sensor detects a state of the user.

10. The information processing apparatus according to claim 9 , wherein

the sensor includes a line-of-sight sensor configured to detect a line of sight of the user, and

the circuitry is further configured to determine the state of the head-mounted optical device in which the line-of-sight sensor fails to detect the line of sight of the user as the second state.

11. The information processing apparatus according to claim 1 , wherein the sensor detects an environmental condition surrounding the head-mounted optical device.

12. The information processing apparatus according to claim 11 , wherein

the sensor further detects illuminance surrounding the head-mounted optical device, and

the circuitry is further configured to

determine the state of the head-mounted optical device as the second state based on the detected illuminance that is less than a threshold illuminance.

13. The information processing apparatus according to claim 1 , wherein the power supply controller is further configured to change the power supply state from a normal power state to one of a plurality of power saving states based on the determined state that is the second state.

14. The information processing apparatus according to claim 13 , wherein

each of the plurality of power saving states is associated with a different power consumption, and

the power supply controller is further configured to:

change the power supply state from the normal power state to a first power saving state of the plurality of power saving states based on the determined state that is the second state; and

change the power supply state from the first power saving state to a second power state of the plurality of power saving states based on a time duration of the second state.

15. The information processing apparatus according to claim 13 , wherein the power supply controller is further configured to change the power supply state from the power saving state to the normal power state based on the determined state that is the first state.

16. The information processing apparatus according to claim 15 , wherein

the plurality of power saving states includes a first power saving state and a second power saving state,

in the first power saving state, the circuitry is further configured to determine one of the first state or the second state,

in the second power saving state the circuitry is incapable of determining one of the first state or the second state,

the power supply controller is further configured to:

supply a first power to at least one of the information processing apparatus or the head-mounted optical device in the first power saving state;

supply a second power to at least one of the information processing apparatus or the head-mounted optical device in the second power saving mode, wherein the second power is less than the first power; and

change the power supply state in a stepwise transition from the first power saving state to the second power saving state based on a duration of the second state, and

in the first power saving state, the power supply controller is further configured to change the power supply state from the first power saving state to the normal power state based on the determined state that is the first state.

17. The information processing apparatus according to claim 13 , wherein

in a first power saving state of the plurality of power saving states, the power supply controller is further configured to activate a display of the head-mounted optical device and the touch sensor of the head-mounted optical device, and

in a second power saving state of the plurality of power saving states, the power supply controller is further configured to deactivate the touch sensor of the head-mounted optical device.

18. A method of controlling power supply, comprising:

receiving a detection result of a sensor associated with a head-mounted optical device;

determining a state of the head-mounted optical device based on the detection result, wherein the determined state is one of a first state in which the head-mounted optical device is worn by a user in a usable state or a second state in which the head-mounted optical device is worn by the user in an unusable state;

controlling a power supply state of at least one of an information processing apparatus or the head-mounted optical device based on the determination; and

controlling an operation of a touch sensor of the head-mounted optical device based on the controlled power supply state.

19. A non-transitory computer-readable medium having stored thereon computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:

receiving a detection result of a sensor associated with a head-mounted optical device;

determining a state of the head-mounted optical device based on the detection result, wherein the determined state is one of a first state in which the head-mounted optical device is worn by a user in a usable state or a second state in which the head-mounted optical device is worn by the user in an unusable state;

controlling a power supply state of at least one of an information processing apparatus or the head-mounted optical device based on the determination; and

controlling an operation of a touch sensor of the head-mounted optical device based on the controlled power supply state.