JP2013120424A - Electronic apparatus and protection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect against physical damage resulting from a collision with the ground in free falling.SOLUTION: An electronic apparatus 100 includes a casing having a first casing portion 101 and a second casing portion 102 laminated in one direction, a drive part that moves the second casing portion 102 in the one direction relative to the first casing portion 101, a falling detection part for detecting the falling of the apparatus, and a control part that drives the drive part to move the second casing portion 102 toward the first casing portion 101 if the falling detection part detects the falling.

Description

  The present invention relates to an electronic device and a protection method.

  For example, Patent Document 1 is known as an electronic device such as a mobile phone or a personal digital assistant provided with an acceleration sensor. In an electronic device as shown in Patent Document 1, when a free fall of its own device is detected by an acceleration sensor, control is performed to turn off the power in order to reduce electrical damage caused by a collision with the ground. .

JP 2008-299866 A

  However, the electronic device described in Patent Document 1 has a problem that the electronic device is not protected from physical damage caused by a collision with the ground during free fall. For this reason, an electronic device may be damaged at the time of dropping.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an electronic device and a protection method capable of protecting from physical damage caused by collision with the ground during free fall. is there.

  SUMMARY An advantage of some aspects of the invention is that a housing having a first housing portion and a second housing portion stacked in one direction, the first housing portion, and the first housing portion. A drive unit that moves the second housing part in the one direction with respect to the housing part; a fall detection unit that detects a fall of the device; and when the fall is detected by the fall detection unit, the drive unit And a control unit that moves the second housing part toward the first housing part by driving the electronic device.

  ADVANTAGE OF THE INVENTION According to this invention, it can protect from the physical damage resulting from the collision with the ground at the time of free fall.

It is a figure which shows the cross-sectional structure of the electronic device by 1st Embodiment. It is a figure which shows the cross-sectional structure of the electronic device by 1st Embodiment. It is a block diagram which shows the function structure of the electronic device by 1st Embodiment. It is a flowchart which shows the procedure of the housing | casing protection operation | movement by 1st Embodiment. It is a block diagram which shows the function structure of the electronic device by 2nd Embodiment. It is a flowchart which shows the procedure of the housing | casing protection operation | movement by 2nd Embodiment. It is a block diagram which shows the function structure of the electronic device by 3rd Embodiment. It is a flowchart which shows the procedure of the housing | casing protection operation | movement by 3rd Embodiment. It is a figure which shows the cross-sectional structure of a part of electronic device by 4th Embodiment. It is a block diagram which shows the function structure of the electronic device by 4th Embodiment. It is a flowchart which shows the procedure of the housing | casing protection operation | movement by 4th Embodiment. It is a front view which shows the other structural example of the electronic device by 4th Embodiment. It is sectional drawing which shows the other structural example of the electronic device by 4th Embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
1 and 2 are views showing a cross-sectional configuration of the electronic device 100 according to the present embodiment. In FIG. 1, a part of the configuration is omitted for easy identification of the components of the electronic device 100.
As illustrated in FIGS. 1 and 2, the electronic device 100 includes a display unit 10, a base unit 11, a bottom cover 15, a vibration unit 16, a contact detection unit 22, and a cover member 26. The electronic device 100 is assembled in a state where these components are stacked. Although not shown in the figure, the electronic device 100 further includes a power supply unit such as a control unit and a battery.

  Hereinafter, in the present embodiment, an XYZ orthogonal coordinate system is used to describe the configuration of the electronic device 100. In the XYZ orthogonal coordinate system, the stacking direction of the components of the electronic device 100 is the Z direction. A plane orthogonal to the Z direction is defined as an XY plane, and directions orthogonal to the XY plane are defined as an X direction and a Y direction, respectively.

The display unit 10 is formed in a rectangular shape when viewed in the Z direction. The display unit 10 has a display surface 10a on the −Z side surface. Images such as still images and moving images are displayed on the display surface 10a. For example, a liquid crystal display panel or an organic EL panel is used as the display unit 10. A touch panel mechanism (not shown) may be provided on the display surface 10a of the display unit 10.
The base unit 11 holds the display unit 10. The base part 11 is formed so as to surround the side part of the display part 10 and the peripheral part of the display surface 10a. The base portion 11 is a first housing portion 101 for accommodating an electronic circuit.

  The vibration part 16 includes a fixed part 16a, a movable part 16b, and a drive part. The fixed part 16a is formed in a cylindrical shape, for example, and accommodates the movable part 16b and the drive part. The fixed portion 16 a is disposed in the opening of the bottom cover 15.

  The movable portion 16b is provided so as to be movable in the Z direction. The drive unit is connected to the movable unit 16b and moves the movable unit 16b in the Z direction. For example, a voice coil motor is used as the drive unit. The drive operation of the drive unit is performed by a control circuit. The vibration unit 16 has a configuration in which the movable unit 16b vibrates in the Z direction when the drive unit reciprocates the movable unit 16b in the Z direction.

  The contact detection unit 22 is installed on each side surface of the display unit 10 with respect to the surface on which the display surface 10a is installed, and is formed in a rectangular frame shape when viewed in the Z direction so as to surround four sides of the display unit 10. The contact detection unit 22 detects the presence / absence of a contact from the outside (for example, a user) and the contact position. The contact detection unit 22 corresponds to the operation unit of the electronic device 100.

  As shown in FIGS. 1 and 2, the cover member 26 covers the + Z side end of the electronic device 100. The cover member 26 has a contact detection unit 22.

  The cover member 26 and the contact detection unit 22 are a second housing portion 102 for housing an electronic circuit. In addition, the second housing portion 102 and the first housing portion 101 including the base portion 11 constitute a housing of the electronic device 100.

  The cover member 26 is connected to the movable part 16 b of the vibration part 16. Therefore, the cover member 26 is provided so as to be movable in the Z direction integrally with the movable portion 16b. When the movable portion 16b vibrates in the Z direction, the vibration of the movable portion 16b is transmitted to the cover member 26, and the cover member 26 vibrates in the Z direction.

  For example, when the movable part 16b moves in the + Z direction from the state shown in FIG. 1, the cover member 26 and the contact detection part 22 move in the + Z direction as the movable part 16b moves as shown in FIG. . Accordingly, the space between the first housing portion 101 and the second housing portion 102 is widened, and the relative movement between the first housing portion 101 and the second housing portion 102 has been performed. become.

  When the movable portion 16b moves in the −Z direction from the state shown in FIG. 2, the cover member 26 moves in the −Z direction as the movable portion 16b moves, and returns to the state shown in FIG. Also in this case, a relative movement has been performed between the first housing portion 101 and the second housing portion 102. In the case of this embodiment, the cover member 26 and the contact detection unit 22 vibrate by reciprocating (vibrating) the movable part 16b in the Z direction.

  As described above, the electronic device 100 includes a housing having the first housing portion 101 and the second housing portion 102 for housing the electronic circuit, and the first housing portion 101 and the second housing that vibrate in a predetermined direction. Since the vibration unit 16 that relatively moves the housing portion 102 is provided, at least one of the first housing portion 101 and the second housing portion 102 can be directly vibrated. As a result, vibration can be efficiently transmitted to the outside.

FIG. 3 is a block diagram illustrating a functional configuration of the electronic device 100 according to the present embodiment.
The electronic device 100 includes a control unit 111, a storage unit 112, a drop detection unit 113, a contact detection unit 22, a display unit 10, and a vibration unit 16.

The fall detection unit 113 includes a triaxial acceleration sensor that detects acceleration in each of predetermined triaxial directions, and detects free fall of the electronic device 100. Specifically, the drop detection unit 113 determines that the electronic device 100 is freely falling when the acceleration detected by the acceleration sensor is almost zero in any direction.
The control unit 111 controls each unit of the electronic device 100 in an integrated manner. For example, if the fall is detected by the drop detection unit 113 when the contact detection unit 22 does not detect contact, the control unit 111 drives the drive unit of the vibration unit 16 to move the second casing portion 102. Move toward the first housing portion 101.
The storage unit 112 includes a RAM (Random Access Memory) and a ROM (Read Only Memory), and stores various data.

Next, with reference to FIG. 4, a case protection operation in the electronic device 100 of the present embodiment will be described. FIG. 4 is a flowchart showing a procedure of the case protection operation according to the present embodiment.
First, the control unit 111 determines whether or not the contact detection unit 22 detects contact (step S101). That is, the control unit 111 determines whether or not the user is holding the electronic device 100. When the contact detection unit 22 detects contact (step S101: Yes), the control unit 111 determines that the user holds and holds the electronic device 100, and returns to step S101.

On the other hand, when the contact detection unit 22 does not detect contact (step S101: No), the control unit 111 determines that the user does not hold the electronic device 100, and the fall detection unit 113 detects free fall. It is determined whether or not (step S102). If the fall detection unit 113 has not detected a free fall (step S102: No), the process returns to step S101.
On the other hand, when the fall detection unit 113 detects a free fall (step S102: Yes), the control unit 111 drives the drive unit of the vibration unit 16 to place the second casing part 102 in the first casing part 101. It moves to the direction (-Z direction) (step S103).

Thus, according to the present embodiment, when the electronic device 100 detects a free fall, the electronic device 100 moves the second housing portion 102 toward the first housing portion 101, thereby The space between the second housing portion 102 is narrowed. As a result, the housing of the electronic device 100 is less susceptible to damage due to an impact than when the space between the first housing portion 101 and the second housing portion 102 is widened. For this reason, the electronic device 100 can protect a housing | casing from the physical damage resulting from the collision with the ground at the time of free fall.
In addition, since the electronic device 100 performs the process of protecting the housing only when the contact detection unit 22 does not detect contact (step S103), the housing is only provided when the user releases the electronic device 100. An action to protect is performed.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.
FIG. 5 is a block diagram illustrating a functional configuration of the electronic apparatus 100a according to the present embodiment.
In this figure, the same parts as those in the electronic apparatus 100 shown in FIG. Other configurations are the same as those of the electronic device 100 shown in FIG.
The impact detection unit 114 includes a triaxial acceleration sensor that detects acceleration in each of predetermined triaxial directions, and detects an impact applied to the electronic device 100. Specifically, the impact detection unit 114 determines that an impact has been applied when detecting an acceleration equal to or greater than a predetermined threshold.
When the impact is detected by the impact detection unit 114 when the contact detection unit 22 is not detecting contact, the control unit 111a drives the drive unit of the vibration unit 16 to move the second casing portion 102 to the first. Move toward the housing part 101.

Next, with reference to FIG. 6, a case protection operation in the electronic device 100a of the present embodiment will be described. FIG. 6 is a flowchart showing the procedure of the case protection operation according to the present embodiment.
First, the control unit 111a determines whether or not the contact detection unit 22 detects contact (step S201). That is, the control unit 111a determines whether or not the user is holding the electronic device 100a. When the contact detection unit 22 detects contact (step S201: Yes), the control unit 111a determines that the user holds and holds the electronic device 100a, and returns to step S201.

On the other hand, if the contact detection unit 22 does not detect contact (step S201: No), the control unit 111a determines that the user does not hold the electronic device 100a, and has the impact detection unit 114 detected an impact? It is determined whether or not (step S202). When the impact detection unit 114 has not detected an impact (step S202: No), the process returns to step S201.
On the other hand, when the impact detection unit 114 detects an impact (step S202: Yes), the control unit 111a drives the drive unit to move the second casing part 102 toward the first casing part 101 (step S202). S203).

  As described above, according to the present embodiment, when the electronic device 100 detects an impact applied to the electronic device 100, the electronic device 100 moves the second housing portion 102 toward the first housing portion 101, thereby The space between the housing part 101 and the second housing part 102 is narrowed. As a result, the housing of the electronic device 100 is less susceptible to damage due to an impact than when the space between the first housing portion 101 and the second housing portion 102 is widened. For this reason, the electronic device 100 can protect a housing | casing from the damage by collision.

[Third Embodiment]
Next, a third embodiment of the present invention will be described.
FIG. 7 is a block diagram illustrating a functional configuration of the electronic apparatus 100b according to the present embodiment.
In this figure, the same parts as those in the electronic device 100 shown in FIG. 3 or the electronic device 100a shown in FIG. Other configurations are the same as those of the electronic device 100 shown in FIG.
When the drop is detected by the drop detection unit 113 when the contact detection unit 22 is not detecting contact, the control unit 111b drives the drive unit of the vibration unit 16 to move the second casing portion 102 to the first. When it is moved in a direction away from the casing portion 101 (+ Z direction) and an impact is detected by the impact detection unit 114, the driving unit of the vibration unit 16 is driven to move the second casing portion 102 to the first casing. It is moved in a direction approaching the portion 101 (−Z direction).
In the present embodiment, each of the drop detection unit 113 and the impact detection unit 114 does not need to include a triaxial acceleration sensor, and only one triaxial acceleration sensor may be provided for the electronic device 100b.

Next, with reference to FIG. 8, a case protection operation in the electronic device 100b of the present embodiment will be described. FIG. 8 is a flowchart showing the procedure of the case protection operation according to the present embodiment.
First, the control unit 111b determines whether or not the contact detection unit 22 has detected contact (step S301). That is, the control unit 111b determines whether or not the user is holding the electronic device 100b. When the contact detection part 22 has detected contact (step S301: Yes), it determines with the user holding and holding the electronic device 100b, and returns to step S301.

On the other hand, when the contact detection unit 22 does not detect contact (step S301: No), the control unit 111b determines that the user does not hold the electronic device 100b, and the fall detection unit 113 detects free fall. It is determined whether or not (step S302). If the fall detection unit 113 has not detected a free fall (step S302: No), the process returns to step S301.
On the other hand, when the drop detection unit 113 detects a free fall (step S302: Yes), the control unit 111b drives the drive unit of the vibration unit 16 to move the second housing part 102 to the first housing part 101. It moves in the direction away from (step S303).

Next, the control unit 111b determines whether or not the impact detection unit 114 has detected an impact (step S304). If the impact detection unit 114 has not detected an impact (step S304: No), the process returns to step S304.
On the other hand, when the impact detection unit 114 detects an impact (step S304: Yes), the control unit 111b drives the drive unit of the vibration unit 16 to move the second casing part 102 toward the first casing part 101. The housing is protected by the movement (step S305).

  As described above, according to the present embodiment, when the electronic device 100 detects a free fall, the electronic device 100 separates the second housing portion 102 from the first housing portion 101 and then detects an impact, thereby detecting the second housing portion 102. Is brought closer to the first housing portion 101. Thereby, the impact when colliding with the ground at the time of free fall can be buffered.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described.
FIG. 9 is a cross-sectional view illustrating a partial configuration of the electronic apparatus 100c according to the present embodiment.
In the figure, only the first housing portion 101 of the electronic device 100c is shown. Other configurations are the same as those of the electronic device 100 shown in FIG.
In addition to the configuration of the electronic device 100 illustrated in FIG. 1, the electronic device 100 c according to the present embodiment includes a protection unit 120 for protecting the display unit 10 and a second drive unit 160.
The second driving unit 160 is installed between the display unit 10 and the protection unit 120 and relatively moves the display unit 10 and the protection unit 120 in the Z direction. The configuration of the second drive unit 160 is the same as that of the vibration unit 16.
The protection unit 120 protects the display unit 10 by surrounding the four sides of the rectangular display unit 10 and projecting from the display surface 10 a of the display unit 10.

As shown in FIG. 9A, in normal times, the display surface 10a of the display unit 10 is at the same position as the end (edge) on the −Z side of the protection unit 120 or on the −Z side from the end. Exists in the position.
On the other hand, as illustrated in FIG. 9B, when protecting the display unit 10, the second driving unit 160 moves the display unit 10 in the + Z direction. Thereby, the edge part of the protection part 120 protrudes in -Z direction from the display surface 10a of the display part 10, and the display surface 10a is protected by the edge part of this protrusion protection part 120.

FIG. 10 is a block diagram illustrating a functional configuration of the electronic apparatus 100c according to the present embodiment.
In this figure, the same parts as those in the electronic apparatus 100 shown in FIG.
The drop direction detection unit 115 detects a housing portion in the gravitational direction (fall direction) based on the detection result by the three-axis acceleration sensor included in the drop detection unit 113. For example, when the triaxial acceleration sensor detects acceleration in the −Z direction immediately before the fall detection unit 113 detects free fall, the drop direction detection unit 115 detects that the first housing portion 101 with the display unit 10 is Judged to be in the direction of gravity. On the other hand, the drop direction detection unit 115 determines that the second housing portion 102 is in the gravity direction when the triaxial acceleration sensor detects acceleration in the + Z axis direction immediately before the fall detection unit 113 detects free fall. judge.

  When the first detector 101 is in the drop direction when the drop is detected by the drop detector 113 when the contact detector 22 does not detect contact, the controller 111c 160 is driven to protrude the protection unit 120 from the display surface 10a of the display unit 10, and when the second housing part 102 is in the dropping direction, the vibrating unit 16 is driven to move the second housing part 102 to the first. Move toward the housing part 101.

Next, with reference to FIG. 11, a case protection operation in the electronic device 100c of the present embodiment will be described. FIG. 11 is a flowchart showing the procedure of the case protection operation according to the present embodiment.
First, the control unit 111c determines whether or not the contact detection unit 22 detects contact (step S401). That is, the control unit 111c determines whether or not the user is holding the electronic device 100c. When the contact detection part 22 has detected contact (step S401: Yes), it determines with the user holding and holding the electronic device 100c, and returns to step S401.

On the other hand, when the contact detection unit 22 does not detect contact (step S401: No), the control unit 111c determines that the user does not hold the electronic device 100c, and the fall detection unit 113 detects free fall. It is determined whether or not (step S402). If the fall detection unit 113 has not detected a free fall (step S402: No), the process returns to step S401.
On the other hand, when the drop detection unit 113 detects a free fall (step S402: Yes), the control unit 111c determines whether or not the casing part in the dropping direction is the first casing part 101 ( Step S403).

When the first housing portion 101 is in the dropping direction (step S403: Yes), the control unit 111c drives the second drive unit 160 to cause the protection unit 120 to protrude from the display surface 10a of the display unit 10 ( Step S404).
On the other hand, when the second housing portion 102 is in the dropping direction (step S403: No), the control unit 111c drives the vibrating unit 16 to move the second housing portion 102 toward the first housing portion 101. Move (step S405).

  In the present embodiment, the processing for protecting the display unit 10 (step S404) and the processing for protecting the housing (step S405) are switched according to the housing portion in the falling direction. If a free fall is detected, both steps S304 and S305 may be performed. In this case, the protection unit 120 and the second housing portion 120 may be integrated so that the processes of steps S304 and S305 can be performed by one voice coil motor (drive unit).

In addition, the electronic device 100c may include an impact detection unit 114.
In this case, when the fall detection unit 113 detects a fall, the control unit 111c drives the second drive unit 160 to cause the protection unit 120 to protrude from the display surface 10a of the display unit 10, and the impact detection unit 114 When an impact is detected, the driving unit may be driven to move the second housing part 102 toward the first housing part 101.
Alternatively, when the fall detection unit 113 detects a fall, the control unit 111c drives the second drive unit 160 to cause the protection unit 120 to protrude from the display surface 10a of the display unit 10 and drives the drive unit. The second housing portion 102 is moved away from the first housing portion 101, and when an impact is detected by the impact detecting unit 114, the driving unit is driven to move the second housing portion 102 to the first You may move to the housing | casing part 101. FIG.
Alternatively, when the fall detection unit 113 detects the fall, the control unit 111c drives the second drive unit 160 to display the protection unit 120 when the first housing portion 101 is in the fall direction. When the second housing portion 102 is in the dropping direction, the driving unit is driven to move the second housing portion 102 away from the first housing portion 101, and then When an impact is detected by the impact detection unit 114, the drive unit may be driven to move the second housing part 102 toward the first housing part 101.

Further, in the present embodiment, the protection unit 120 is provided on the four side surfaces of the display unit 10. However, as shown in FIG. 12, projections 130 such as pins may be provided at the four corners of the rectangular display unit 10. . The protrusion 130 is a protection part. FIG. 12 is a diagram illustrating another configuration example when the electronic apparatus 100c is viewed from the −Z direction to the + Z direction.
FIG. 13 is a cross-sectional view illustrating a partial configuration of the electronic device 100c in this case. As shown in FIG. 13A, at the normal time, the −Z side end of the protrusion 130 is at the same position as the display surface 10a of the display unit 10 or in the + Z direction more than the display surface 10a. On the other hand, as shown in FIG. 13B, when protecting the display unit 10, the second driving unit 160 moves the protrusion 130 in the −Z direction to project from the display surface 10 a of the display unit 10. Thereby, the edge part of the protrusion 130 protrudes in the −Z direction from the display surface 10 a of the display unit 10, and the protruding protrusion 130 can prevent the display unit 10 from directly colliding with the ground or the like during free fall.

  As described above, according to the present embodiment, the electronic device 100c performs the process of protecting the display unit 10 (step S404) and the process of protecting the casing (step S404) according to the casing portion in the dropping direction. S405). Thereby, the part which collides with the ground at the time of free fall can be protected appropriately.

Also, a program for realizing the steps shown in FIGS. 4, 6, 8, and 11 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read by a computer system. By executing this, image display processing may be performed. Here, the “computer system” may include an OS and hardware such as peripheral devices.
The “computer-readable recording medium” refers to a floppy (registered trademark) disk, a magneto-optical disk, an SD (Secure Digital) card, a writable non-volatile memory such as a flash memory, and a portable medium such as a CD-ROM. A storage device such as a hard disk built in a computer system.

Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time.
The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

The embodiments of the present invention have been described in detail above with reference to the drawings. However, the specific configuration is not limited to the above-described one, and various design changes and the like can be made without departing from the scope of the present invention. Is possible.
For example, in each of the embodiments described above, the first casing portion 101 and the second casing portion 102 may be sealed. Thereby, the inside of an electronic device can be protected from foreign materials, such as dust and dust.

  In each of the above-described embodiments, the configuration in which one vibration part is arranged has been described as an example. However, the present invention is not limited to this. For example, a configuration in which a plurality of vibration units are arranged may be used. In this case, the vibration part can be provided at a plurality of different positions. For example, the configuration may be such that one vibration unit 16 is arranged at each of four corners of the electronic device 100.

  Further, in each of the above embodiments, the electronic circuit is accommodated in the second housing portion 102. However, all the electronic circuits are accommodated in the first housing portion 101, and the electronic circuit is accommodated in the second housing portion 102. It may not be accommodated.

  DESCRIPTION OF SYMBOLS 100,100a, 100b, 100c ... Electronic device 111, 111a, 111b, 111c ... Control part 112 ... Memory | storage part 113 ... Drop detection part 114 ... Impact detection part 115 ... Drop direction detection part 10 ... Display part 101 ... First housing | casing Part 102 ... Second housing part 16 ... Vibration part 22 ... Contact detection part 120, 130 ... Protection part 160 ... Second drive part

Claims (12)

A housing having a first housing portion and a second housing portion laminated in one direction;
A drive unit that moves the second housing part in the one direction relative to the first housing part;
A fall detector that detects the fall of the device itself;
When a drop is detected by the drop detection unit, a control unit that drives the drive unit to move the second housing part toward the first housing part;
An electronic device comprising: A housing having a first housing portion and a second housing portion laminated in one direction;
A drive unit that moves the second housing part in the one direction relative to the first housing part;
An impact detector for detecting an impact applied to the device;
When an impact is detected by the impact detection unit, the control unit drives the drive unit to move the second housing part toward the first housing part;
An electronic device comprising: A housing having a first housing portion and a second housing portion laminated in one direction;
A drive unit that moves the second housing part in the one direction relative to the first housing part;
A fall detector that detects the fall of the device itself;
An impact detector for detecting an impact applied to the device;
When a fall is detected by the drop detection unit, the drive unit is driven to move the second housing part away from the first housing part, and then an impact is detected by the impact detection unit. Then, a controller that drives the drive unit to move the second housing part toward the first housing part;
An electronic device comprising: A display unit;
A protection unit for protecting the display unit;
A drive unit for projecting the protection unit from the display surface of the display unit by relatively moving the display unit and the protection unit;
A fall detector that detects the fall of the device itself;
When a drop is detected by the drop detection unit, a control unit that drives the drive unit and causes the protection unit to protrude from the display surface of the display unit;
An electronic device comprising: A display unit installed in the first housing part;
A protection unit for protecting the display unit;
A second drive unit for projecting the protection unit from the display surface of the display unit by relatively moving the display unit and the protection unit;
A drop direction detector that detects a housing part in the drop direction;
With
When the first detecting unit is in the dropping direction when the drop detecting unit detects a drop, the control unit drives the second driving unit to display the protection unit on the display unit. When projecting from the surface and the second housing part is in the dropping direction, the driving unit is driven to move the second housing part toward the first housing part. Item 2. The electronic device according to Item 1. A display unit installed in the first housing part;
A protection unit for protecting the display unit;
A second drive unit for projecting the protection unit from the display surface of the display unit by relatively moving the display unit and the protection unit;
A fall detector that detects the fall of the device itself;
With
When the fall is detected by the fall detection unit, the control unit drives the second drive unit to project the protection unit from the display surface of the display unit, and the impact detection unit detects the impact. Then, the electronic device according to claim 2, wherein the driving unit is driven to move the second housing part toward the first housing part. A display unit installed in the first housing part;
A protection unit for protecting the display unit;
A second drive unit for projecting the protection unit from the display surface of the display unit by relatively moving the display unit and the protection unit;
A drop direction detector that detects a housing part in the drop direction;
With
When the first detecting unit is in the dropping direction when the drop detecting unit detects a drop, the control unit drives the second driving unit to display the protection unit on the display unit. And when the second housing part is in the dropping direction, the drive unit is driven to move the second housing part away from the first housing part, and then the impact The electronic apparatus according to claim 3, wherein when an impact is detected by the detection unit, the driving unit is driven to move the second casing part toward the first casing part. It is installed on the side surface of the housing and includes a contact detection unit that detects the presence or absence of contact,
The electronic device according to claim 1, wherein the control unit drives the drive unit when contact is not detected by the contact detection unit. A method for protecting a housing having a first housing portion and a second housing portion laminated in one direction,
An electronic device detecting a fall of the own device;
When the electronic device detects a fall, the step of moving the second housing part toward the first housing part;
The protection method characterized by having. A method for protecting a housing having a first housing portion and a second housing portion laminated in one direction,
An electronic device detecting an impact applied to the device;
When the electronic device detects an impact, the step of moving the second housing part toward the first housing part;
The protection method characterized by having. A method for protecting a housing having a first housing portion and a second housing portion laminated in one direction,
An electronic device detecting a fall of the device;
When the electronic device detects a fall of its own device, the step of moving the second housing part in a direction away from the first housing part;
The electronic device detecting an impact applied to the device;
When the electronic device detects an impact, the step of moving toward the first housing part;
The protection method characterized by having. An electronic device detecting a fall of the device;
When the electronic device detects a drop, a step of projecting a protection unit for protecting the display unit from the display surface of the display unit;
The protection method characterized by having.

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