Electronic apparatus and disk protection method
View Patent ↗An electronic apparatus includes a body, a triaxial acceleration sensor which is built in the body and includes a long axis and a short axis, a disk device built in the body, a calculation unit that calculates a value on a basis of an acceleration value which is detected by the triaxial acceleration sensor and is output in a direction perpendicular to the long axis and to the short axis, a setting unit that sets a threshold in a state of the body in which a plane formed by the long axis and the short axis is approximately parallel to a direction of action of gravitational acceleration, and a controller that starts protection of the disk device on a basis of a result of comparison between the value calculated by the calculation unit and the threshold.
1. An electronic apparatus comprising:
a body;
a triaxial acceleration sensor configured to detect an acceleration applied on the body and to acquire processed acceleration values respectively corresponding to fluctuation types;
a state sensor configured to detect a state of the electronic apparatus and to set a sensitivity for the fluctuation types;
a disk device that is built in the body and stores data;
a controller configured to execute a protection function to protect the disk device when the processed acceleration values exceed threshold values set based on the sensitivity; and
a secondary battery,
wherein the state sensor includes a power supply controller configured to determine whether a power is supplied form an AC adapter or the secondary battery, and
wherein the sensitivity is determined based on a detected result of the power supply controller.
2. The electronic apparatus according to claim 1 , wherein the controller executes the protection function by selectively comparing the processed acceleration values and the threshold values.
3. The electronic apparatus according to claim 2 , wherein the fluctuation types include:
a free fall fluctuation,
an external force fluctuation,
an X-axis rotation fluctuation,
a Y-axis rotation fluctuation, and
a Z-axis rotation fluctuation, and
wherein each of the threshold values is set for corresponding one of the fluctuation types.
4. The electronic apparatus according to claim 1 , wherein the sensitivity is enhanced for a certain period of time when a power source is changed from the AC adapter to the secondary battery.
5. The electronic apparatus according to claim 1 , further comprising:
a display unit which is attached to the body,
wherein the state sensor determines whether an operation mode of the electronic apparatus is a tablet mode, and
wherein the sensitivity is determined based on a detected result of the state sensor.
6. The electronic apparatus according to claim 1 , wherein the processed acceleration values include:
a synthetic acceleration value,
an acceleration value acting in a Z-axis,
a variation of the acceleration value acting in the Z-axis,
an acceleration value acting in a Y-axis,
a variation of the acceleration value acting in the Y-axis,
an acceleration value acting in an X-axis, and
a variation of the acceleration value acting in the Z-axis.
7. A disk protection method executed in an electronic apparatus including a body, a triaxial acceleration sensor, and a disk device built in the body, the disk protection method comprising:
detecting an acceleration applied on the body and acquiring processed acceleration values respectively corresponding to fluctuation types;
detecting a state of the electronic apparatus and setting a sensitivity for the fluctuation types;
executing a protection function to protect the disk device when the processed acceleration values exceed threshold values set based on the sensitivity; and
determining whether a power, is supplied from an AC adapter or a secondary battery, and determining the sensitivity based on a detected result of the power supply.
8. The disk protection method according to claim 7 , further comprising:
enhancing sensitivity for a certain period of time when a power source is changed from the AC adapter to the secondary battery.
9. The disk protection method according to claim 7 , further comprising:
determining whether an operation mode of the electronic apparatus is in a tablet mode, and
wherein the sensitivity is determined based on a detected result of the state sensor.
10. An electronic apparatus comprising:
a body;
a triaxial acceleration sensor configured to detect an acceleration applied on the body and to acquire processed acceleration values respectively corresponding to fluctuation types;
a state sensor configured to detect a state of the electronic apparatus and to set a sensitivity for the fluctuation types;
a disk device that is built in the body and stores data;
a controller configured to execute a protection function to protect the disk device when the processed acceleration values exceed threshold values set based on the sensitivity; and
a display unit which is attached to the body,
wherein the state sensor includes an open-close detection portion configured to determine whether the display unit is in a closed state or an opened state against the body, and
wherein the sensitivity is determined based on a detected result of the open-close detection portion.
11. The electronic apparatus according to claim 10 , wherein the sensitivity is enhanced for a certain period of time when the opened state is changed to the closed state.
12. A disk protection method executed in an electronic apparatus including a body, a triaxial acceleration sensor, and a disk device built in the body, the disk protection method comprising:
detecting an acceleration applied on the body and acquiring processed acceleration values respectively corresponding to fluctuation types;
detecting a state of the electronic apparatus and setting a sensitivity for the fluctuation types;
executing a protection function to protect the disk device when the processed acceleration values exceed threshold values set based on the sensitivity; and
determining by an open close detection portion whether a display unit attached to the body is in closed state or an opened state against the body, and
wherein the sensitivity is determined based on a detected result of the open-close detection portion.
13. The disk protection method according to claim 12 , wherein the sensitivity is enhanced for a certain period of time when the opened state is changed to the closed state.
14. An electronic apparatus comprising:
a body;
a triaxial acceleration sensor configured to detect an acceleration applied on the body and to acquire processed acceleration values respectively corresponding to fluctuation types;
a state sensor configured to detect a state of the electronic apparatus and to set a sensitivity for the fluctuation types;
a disk device that is built in the body and stores data;
a controller configured to execute a protection function to protect the disk device when the processed acceleration values exceed threshold values set based on the sensitivity;
a secondary battery; and
a display unit which is attached to the body,
wherein the state sensor includes a power supply controller configured to determine whether a power is supplied form an AC adapter or the secondary battery,
wherein the state sensor determines whether an operation mode of the electronic apparatus is a tablet mode,
wherein the sensitivity is determined based on a detected result of the state sensor, and
wherein the sensitivity is lowered for a certain period of time when the operation mode is changed to the tablet mode.
15. A disk protection method executed in an electronic apparatus including a body, a triaxial acceleration sensor, and a disk device built in the body, the disk protection method comprising:
detecting an acceleration applied on the body and acquiring processed acceleration values respectively corresponding to fluctuation types;
detecting a state of the electronic apparatus and setting a sensitivity for the fluctuation types;
executing a protection function to protect the disk device when the processed acceleration values exceed threshold values set based on the sensitivity;
determining whether a power is supplied from an AC adapter or a secondary battery, and determining the sensitivity based on a detected result of the power supply; and
determining whether an operation mode of the electronic apparatus is in a tablet mode and
wherein the sensitivity is determined based on a detected result of the state sensor, and
wherein the sensitivity is lowered for a certain period of time when the operation mode is changed to the tablet mode.