JP2003018262A - Portable electronic equipment, and charging table and portable holder to be used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent recorded data in a memory card from being broken in a drop of the main body. SOLUTION: The portable electronic equipment provided with the memory card 2 for recording/reproducing data and a recording/reproducing function is equipped with a safety protection device 4 for stopping the recording operation of the electronic equipment when the drop of the electronic equipment is detected. Thereby, the memory card 2 is prevented from being broken because abnormal current fluctuation occurs in the memory card 2, resulting that a power source is stopped momentarily due to impact force of the casing of the portable electronic equipment when it is dropped down while data is being recorded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a portable electronic device including a reproducible memory card and an electronic circuit that records and reproduces data on the memory card, and a charging stand and a portable holder used for the portable electronic device.

[0002]

2. Description of the Related Art In recent years, various portable electronic devices capable of recording and reproducing various data on and from a memory card have been developed. This memory card is thin and lightweight, and can record information without the need for a mechanical writing device, and is widely used for recording still images, music, personal computer data, and the like.

Usually, this portable electronic device is provided with an electronic circuit for recording / reproducing data on / from a memory card, operation switches and a display section for reproducing / displaying the memory card, a speaker and the like. It has a configuration including a dry battery or a secondary battery as a main power source for operating the electronic circuit. On the other hand, a memory card used for this portable electronic device is provided with a flash memory and an electronic circuit for writing in the flash memory inside the card, and has a plurality of connector terminals on the end face outside the memory card. It is provided.

When data is recorded on this memory card, a large current flows through the connector terminal of the memory card that is electrically connected to the electronic device, but excessive current fluctuations occur during the recording operation on this memory card. If this happens, the recorded data in the memory card may be damaged or destroyed.

One of the causes of this excessive current fluctuation is known to be a momentary interruption. Therefore, as a measure against momentary interruption to the recording / reproducing electronic device of this memory card, an opening / closing door is provided at the memory card insertion opening of the electronic device body, and if this opening / closing door is opened carelessly during recording / reproduction, the circuit It is conceivable to install a detection switch near the open / close door to stop the recording / reproducing operation. As a result, the user can stop the recording operation before opening the open / close door and touching the memory card carelessly at the time of recording / reproducing.

As a countermeasure against this momentary interruption, a method of supplying the electric power stored in a large-capacity capacitor provided on the circuit when the main power supply stops the power supply for some reason is also considered. That is, when the voltage drop of the main power supply is detected and the voltage drops below a specified value, electricity is supplied from the large-capacity capacitor and the operation of the electronic device is stopped, damaging the memory card. It is intended to prevent destruction.

[0007]

[Problems to be Solved by the Invention]
For example, the momentary power failure may occur not only when the memory card is carelessly taken out, but also in the following cases. That is, as a cause of this momentary interruption, when an external force such as a shock acts on the main body of the mobile phone when the mobile electronic device, for example, a mobile phone is accidentally dropped during use, the connector terminal of the memory card and the battery terminal , The control circuit connector may be momentarily disconnected and the circuit may be disconnected.

This is because the connector terminal of the memory card is usually held in pressure contact with the terminal inside the electronic device by a spring, but it is resistant to momentary acting force such as drop impact. In some cases, the spring operation cannot follow and the terminals are disengaged from each other to cause a non-conductive state, and the memory card is damaged at the moment when the non-conductive state occurs.

In addition, when a drop impact force is applied to a portable electronic device, a built-in electronic component may move to cause misalignment between terminals, which may cause an instantaneous power failure. Normally, the force that acts on this portable electronic device at the time of this drop impact is excessive even for a moment, and if the connection between the power supply and the recording / reproducing device is disconnected and there is a momentary disconnection, a door, etc. The detection switch provided in the above cannot support this.

For example, as a portable electronic device equipped with a memory card, Japanese Patent Application Laid-Open No. 9-319664 and Japanese Patent Application Laid-Open No.
FIG. 16 shows a digital camera described in Japanese Patent Publication No. 000-83187. In this digital camera, a lens 102, a printed circuit board 103 having an electric circuit, a main power supply 104, and the like are provided inside a case 101 which is a camera body, and a card chamber 1 for accommodating a memory card 105.
01A is provided with a memory card holder 106, a memory card opening / closing door 101B, a door opening / closing switch 101C, and the like.

In addition, in this digital camera, a battery cover 101D for inserting and removing the main power source 104 in and from the camera body.
The battery for the main power supply 104 is connected to the printed circuit board 103 and the connector 107 that form an electric circuit, and can be replaced when the battery performance deteriorates. The memory card 105 is provided with the above-mentioned connector terminal 105A for exchanging signals with the printed circuit board 103 forming an electric circuit at the time of recording / reproducing, and the connection terminal 106A provided on the holder 106.
Connected through.

In the digital camera having such a structure, normally, at the time of recording / reproducing, if the memory card opening / closing door 101C is inadvertently opened and the memory card 106 is taken out, the door opening / closing switch 101D operates to open / close the door 101C.
The electric circuit that detects that the is opened stops the recording / reproducing operation, so there is no damage or destruction due to momentary interruption.

However, for example, when a digital camera is used while being held by hand, if it is inadvertently dropped and collided with the floor or the road, an impact force is momentarily applied to the digital camera, and the power for the main power source is used. The springs and connectors for connecting the battery, circuit, and memory card to the printed circuit board may momentarily come off and momentarily disconnect.

As a portable electronic device equipped with a memory card, a portable information terminal 110 as disclosed in, for example, Japanese Patent Laid-Open No. 2000-137553 is shown in FIG.
In this portable information terminal, the built-in printed circuit board 11
Memory card 120 and control circuit 112 for writing on 1
And a main power source 113 and a secondary battery 114 for backup
A device including a voltage detector 115, a large-capacity capacitor 116, and the like is known.

In the portable information terminal having such a structure, when a voltage drop is detected by the voltage detector 115 due to a momentary interruption or the like, power is supplied from the large capacity capacitor 116 or the secondary battery 114, and the memory is used. In the case where the drop hitting force is so strong that the circuit itself connecting the card 120 is disconnected, the instantaneous interruption is similar to the previous embodiment.
There is a problem of being unable to deal with it.

In view of the above circumstances, the present invention provides a portable electronic device capable of preventing recorded data in a memory card from being damaged or destroyed when the main body is dropped, and the like. It is intended to provide a charging stand and a portable holder to be used.

[0017]

The present invention is, firstly, a portable electronic device provided with a recording / reproducing means for writing or reading data to or from a memory card, which is subjected to a drop impact or the like when writing or reading data. It is characterized by the provision of a safety protection device for preventing the memory card from being damaged or destroyed due to the external power acting on the housing and the power supply being momentarily cut off.

Therefore, when the portable electronic device is placed on a desk or the like in a stable state, the safety protection device does not operate, and when the portable electronic device is dropped, the safety protection device operates to move the memory card. Stop the recording operation of. As a result, it is possible to prevent excessive current fluctuation during recording operation from damaging or destroying the recorded data in the memory card.

Secondly, the safety protection device includes drop detection means for detecting a fall of the portable electronic device, and control means for detecting the fall and stopping the writing or reading operation of the portable electronic device. And the fall detection means,
The portable electronic device may be composed of an acceleration sensor provided inside the housing.

Thus, the acceleration sensor detects the gravitational acceleration acting in the direction of gravity due to the fall, so that the fall motion can be reliably detected.

Thirdly, the safety protection device detects danger of dropping or risk of falling of the portable electronic device, and writing or reading of the electronic device by detecting the risk of falling or dropping. It is preferable that the danger detecting means has a control means for stopping the operation, and the danger detecting means is constituted by an opening / closing switch having a knob protruding outside the housing of the portable electronic device.

When falling from a state of being placed on a desk or the like, since the knob of the open / close switch is separated from the top surface of the desk, the drop can be indirectly detected by turning on the open / close switch.

Fourthly, it is preferable to provide a plurality of knobs of the open / close switch constituting the danger detecting means outside the casing of the portable electronic device.

Fifth, the opening / closing switch has one knob on the bottom of the casing of the portable electronic device and one or more on the grip for holding the casing of the portable electronic device. Good.

Thus, it is possible to prevent the user from erroneously detecting the falling state even when the user holds the table from above, and at the same time, even when the user drops the state where the user holds the table, the fall detection is performed. It can be performed.

Sixthly, the open / close switch on the bottom of the housing is normally turned off when it is placed on a work surface such as a desk, and the work is carried out by the user holding it by hand. It may be configured by a normally open switch that is turned on when it is away from the table.

Seventhly, the release is permitted to allow the writing or reading operation to the memory card even in the standby mode in which the fall detecting operation by the fall detecting means or the danger detecting operation by the danger detecting means is possible. Means are preferably provided.

Eighthly, as the opening / closing switch constituting the danger detecting means, a main switch is provided at the bottom of the casing of the portable electronic device, and the casing of the portable electronic device is provided outside the main switch. Further, it is preferable to provide one or more auxiliary switches constituting the releasing means.

Thus, the main switch is turned on when the main body grip portion is gripped by hand, for example, away from the top surface of the desk, but even in this case, as long as the knob of the auxiliary switch is manually gripped and pushed in, The safety protection does not work.

Ninth, in addition to the fall detection means or the danger detection means, the grip section is provided with the auxiliary switch, and when the auxiliary switch is in the ON state, writing of data to the memory card is performed. Alternatively, it is preferable that when the read operation is possible and the auxiliary switch is in the off state, the data write or read operation to the memory card is impossible.

As a result, it becomes possible to carry out recording on the memory card while holding it by hand. Also, when recording on a memory card while holding it with your hand, even if you accidentally drop it, before the impact force due to the drop acts,
The recording operation on the memory card can be stopped.

Tenth, a remote control device for writing or reading data to or from the memory card is provided, and when the safety protection device is operating, the remote control device operates to read or write data to the memory card. A warning unit may be provided for displaying a warning sound or warning that the writing or reading operation cannot be performed.

Accordingly, when the safety protection mechanism operates, it is possible to accurately inform the user that the recording operation to the memory card cannot be performed by the remote control device without touching the portable electronic device by the user, and it is easy to use. Can be improved.

Eleventhly, in the portable electronic device of the present invention, a memory card for storing data is inserted into an inside of an insertion opening provided in the device, and recording / reading of data is performed on the memory card. A portable electronic device provided with a reproducing means, wherein an opening / closing door and a switch for detecting an open / closed state of the opening / closing door are provided at an insertion opening of the portable electronic device, and the portable electronic device detects a fall of the portable electronic device. Or a danger detecting means for detecting the risk of falling of the portable electronic device, and the switch also serves as the drop detecting means or the danger detecting means.

As a result, the number of parts can be reduced.

Twelfthly, the switch also serving as the danger detecting means may be an open / close switch provided with a knob near the open / close door at the bottom outside the housing.

Thirteenth, it is preferable to provide a seal around the knob of the open / close switch which constitutes the danger detecting means and which cannot be re-adhered once it is peeled off.

As a result, evidence is obtained in the case where the portable electronic device is intentionally dropped while artificially setting the state in which the operation of the danger detecting means is stopped, and is used for an illegal purpose. You can leave it.

Fourteenth, the charging stand of the portable electronic device of the present invention is a charging stand of the portable electronic device provided with a recording / reproducing means for writing / reading data to / from a memory card. An opening / closing switch may be provided on the charging stand as a danger detecting means for detecting the risk of falling, and the opening / closing switch may be turned on when the portable electronic device drops together with the charging stand.

Although it is conceivable that the recording operation on the memory card is carried out during charging, it is possible to prevent the drop state from being erroneously detected even when it is set on the charging stand away from the desk top. it can.

Fifteenthly, the portable holder of the electronic device of the present invention accommodates the body of the portable electronic device equipped with the recording / reproducing means for writing / reading data to / from the memory card, and is mounted on the body or clothes. A portable holder, wherein an opening / closing switch having a knob protruding outside the housing of the portable electronic device is provided in the portable electronic device as a danger detecting means for detecting a fall or a risk of falling of the portable electronic device. At least one hole is provided to expose the knob of the opening / closing switch to the body or clothing side and press the knob to the body or clothing side of the wearer of the portable holder to hold the opening / closing switch in the off state. When the portable electronic device is opened and the portable electronic device is held together with the portable holder or when the portable electronic device that has come out of the holder falls apart from the body or clothes and is dropped, it is exposed from the hole. That knob portable electronic device opens the switch protrudes outside the main body is characterized by being configured to turn on.

As a result, when the portable electronic device or the portable holder into which the portable electronic device is inserted is separated from the user's clothes or body, the falling state can be detected and the recording operation on the memory card can be stopped.

[0043]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. [First Embodiment] FIG. 1 illustrates a mobile phone to which a mobile electronic device according to a first embodiment of the present invention is applied. Figure 1 shows a recordable and reproducible memory card (not shown)
FIG. 2 is a perspective view showing the outer appearance of the back side of this mobile phone, and FIG.
FIG. 3 is an external perspective view showing a state in which an opening / closing door 21 for a vehicle is opened.

In this mobile phone, a housing part which is the main body 1 is composed of a front case 10A and a rear case 10B, and in this housing part, operation switches 11 for performing various operations of the mobile phone and various Display unit 1 using an LCD (liquid crystal display) or the like for displaying input data
2, receiver 13A and transmitter 13B, earphone jack 1
4A, strap 15, LED lamp 16, charging terminal 1
In addition to 7A, the input / output terminal 17B, etc., an opening / closing door 21 for the memory card 2, an opening / closing switch 31 including a micro switch for detecting the open / closed state of the opening / closing door 21, a safety protection device 4, and the like are provided.

The opening / closing door 21 for the memory card is provided with the above-mentioned opening / closing switch 31 for detecting the open / closed state of the opening / closing door 21 on the side of the opening on the housing side, which comes into contact when the opening / closing door 21 is closed. An opening / closing switch 32 (described later), which is provided and operates when the opening / closing door 21 is opened, is set to an operable state. Further, after this, in the case 10B, in addition to the antenna 18, the battery lid 10C, the speaker 19, and the like, the open / close switch 32 (see FIG. 3) constituted by a microswitch or the like constituting the danger detecting means of the safety protection device 4 is picked up. 32A is provided.

This open / close switch 32 is used for the memory card 2
When data is recorded on the memory card, the power of the mobile electronic device suddenly stops due to a drop impact force or the like, which causes an abnormal current fluctuation in the memory card 2 and damages the memory card 2. This is for preventing the destruction, and is configured to detect the fall of the portable electronic device and stop the recording operation of the portable electronic device. The opening / closing switch 32 of this embodiment is provided with the above-mentioned knob 32A that is projected to the outside of the housing. When the housing is dropped, the opening / closing switch 32A is contacted / pressed down. 32 is closed and turned on, and a drop detection signal is output to the control unit 37 described later.

As shown in FIG. 3, inside the housing, in addition to the printed circuit board 33, the holder 22 for the memory card 2 mounted on the printed circuit board 33, the key switch 11A, etc., The open / close switch 32 described above,
The audio output unit 34 for the speaker 19, the battery of the power supply unit 35, the wireless unit 36 including electric components for transmission and reception, and the like are provided, and each of them is a control unit 37 that constitutes a part of the safety protection device 4. Connected with.

The memory card holder 22 is for holding the memory card 2. As shown in FIG. 4, the printed circuit board 33 and the card terminal 2A of the memory card 2 are electrically connected by the holder terminal 22A. ing. The holder terminal 22A has a structure having a spring and is constantly urged to contact the card terminal 2A with a contact pressure of a specified value or more. In addition, a spring structure (not shown) is also provided so that contact pressure is always applied to the battery and the connecting portion of the control unit 37 described above.

On the other hand, the key switch 11A is configured to operate by turning on the operation switch 11. When the open / close switch 32 is usually placed on a desk or the like, the open / close switch 32 is in an off state in which the switch is opened by digging into the inside of the housing (which constitutes a normally open switch), and when lifted up and released from the desk or the like. , The switch is closed and turned on, and the safety protection device 4 is set in an operable state.

As shown in FIG. 5, the control section 37 includes a voice output section 34 connected to the speaker (warning sound generating section) 19.
Operation switch 11, wireless unit 36, and display unit 12
In addition to being connected to the power supply unit 35, the input / output terminal 17B, the memory card 2, the open / close switch 32, and the open / close switch 31 are connected to control these.

The memory card 2 includes the holder terminal 2 described above.
It is connected to the control unit 37 via 2A so that data can be recorded / reproduced on / from the memory card 2. The recording of data in the memory card 2 is controlled by the control unit 37 to be externally input through a priority cable (not shown) connected to the input / output terminal 17B, or a data transmission / reception function of a mobile phone (not shown) is used. Similarly, through the control unit 37, the memory card 2
The data is written in a flash memory (not shown) inside.

The memory card 2 is provided with a card terminal 2A, and data is written to the internal flash memory through an electric signal flowing therethrough. In addition,
The card terminal 2A is connected to the printed circuit board 33 including the control circuit of the control section 37 and the holder terminal 22A of the holder 22 provided on the printed circuit board 33.

A plurality of open / close switches 32 are installed inside the housing and connected to the input of the control section 37. One of the knobs 32A for performing on / off operation of these open / close switches 32 is shown in FIG. As shown in FIG. 3, it is provided so as to project to the side of the back case 10B that constitutes the housing.
When the open / close switch 32 is in the ON state, a danger detection signal is output from the open / close switch 32 to the control unit 37, and the control unit 37 receiving the danger detection signal receives an external force or drops the housing. It is configured to immediately stop the recording operation of the memory card 2 by detecting that the memory card 2 is present. On the other hand, when the open / close switch 32 is off, the controller 37 controls appropriate means so as to allow the recording operation of the memory card 2.

Next, the operation of the mobile phone according to this embodiment will be described. For example, when some impact or external force is applied to the body 1 of the mobile phone, the electrical connection parts such as the wiring and various connection terminals cannot follow the displacement due to the impact force, and they are disconnected and the circuit is disconnected. A so-called momentary interruption occurs. As a cause of this momentary interruption,
It is known that mobile phones fall.

If the data recording operation of the mobile phone is carried out by wire input, it is general that the data is recorded on a table such as a desk top, and the wireless function of the mobile phone is used. For example, similarly, it is often used on the desk surface, or depending on the data transmission / reception time, the main body of the mobile phone is held by hand or stored in a holder for body wearing.

In such a case, the knob 32A of the open / close switch 32 provided on the main body of the mobile phone is pressed against the upper surface of the desk or the mounting table, and the open / close switch 32 is opened to the off state. The control unit 3 indicates that it is in a safe state.
A safety signal is output from the open / close switch 32 to the control unit 37 to notify the control unit 37. The control unit 37, to which this safety signal is input, sets the safety mode that enables the recording operation to the memory card 2. As a result, the recording operation to the memory card 2 can be performed by the appropriate input means.

On the other hand, during the recording operation, if the user accidentally drops it from a desk or the like, the knob 32A of the open / close switch 32, which has been pushed to the desk top, is pushed away from the desk top. It is released from the state. As a result, pick 32
A protrudes from the surface of the rear case 10B, and the open / close switch 3
Since 2 is turned on, a danger detection signal is output to the control unit 37.

Then, the control unit 3 which receives this detection signal
In No. 7, since the recording operation is stopped, the memory card 2 is not damaged even if the impact force at the time of dropping is applied. That is, the operation time required to stop the memory recording operation by the command from the control unit 37 is at most about several nanoseconds, and there is a sufficient time margin before the impact force due to the drop acts. The recording operation can be stopped.
In addition, in this embodiment, as the opening / closing switch 32 of the danger detecting means, the micro switch in which the knob 32A moves in and out of the rear case 10b is used, but a touch sensor or the like may be used instead.

[Second Embodiment] Next, a second embodiment will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description. The second embodiment is different from the first embodiment in that a drop detection means is provided instead of the danger detection means of the safety protection device 4, and the fall detection means is provided inside the main body instead of the open / close switch. This is the point where the acceleration sensor 41 is provided.

When the acceleration sensor 41 detects the acceleration applied to the body of the mobile phone, a drop detection signal is output to the control section 37. On the other hand, the control unit 3
In FIG. 7, when the fall detection signal is input, a control signal is output to an appropriate recording / reproducing circuit (not shown) so that the fall operation is detected and the recording operation to the memory card 2 is immediately stopped. Is configured.

According to this embodiment, the acceleration sensor 41
Since it is not necessary to expose the opening / closing switch from the outside of the main body of the mobile phone, the appearance is not spoiled, which is convenient.

[Third Embodiment] Next, a third embodiment will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description. In this third embodiment,
Similar to the first embodiment, the rear case 10B has an opening / closing switch 32 which constitutes a danger detecting unit of the safety protection device 4.
It has a knob 32A (which constitutes the main switch). Furthermore, in the third embodiment, unlike the first embodiment, a grip portion 10D for holding the main body of the mobile phone is provided outside the main body of the mobile phone, and the grip portion 10D also detects the fall of the safety protection device 4. As a releasing means for releasing the setting of the possible operating state, the knob 42A of the auxiliary switch 42 is used.
Is projected.

In this embodiment, by providing the grip portion 10D with the knob 42A of the auxiliary switch 42, for example, the main body of the mobile phone initially placed on the desk surface is recorded in the memory card 2 during the recording operation. Even if you lift it carelessly
As long as the hand grips the grip portion 10D, the knob 42A on the grip portion 10D can be immersed in the main body. Therefore, the knob 32A on the rear case 10B side that has been depressed by being pushed onto the desk top surface
Even if the danger detection signal is output to the control unit 37 by moving away from the desk top surface, since the safety signal is output from the knob 42A of the grip unit 10D, the control unit 37 may determine that it is not in the falling state. It is configured to be able to.

When the hand is released from the state where the grip portion 10D is gripped, the knob 42A of the auxiliary switch 42 provided on the grip portion 10D pops out from the surface of the grip portion 10D. As a result, the auxiliary switch 42 is turned on to output a danger detection signal, and the control unit 37 can immediately stop the recording operation to the memory card 2 when detecting this. Note that a touch sensor or the like may be installed in the grip portion 10D instead of the knob 42A of the auxiliary switch 42.

[Fourth Embodiment] Next, a fourth embodiment will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description. In this fourth embodiment,
The difference from the first embodiment is that, in addition to the safety protection device 4,
This is the point that the warning display means 5 is provided.

The warning display means 5 informs the user that the user has inadvertently lifted the main body of the mobile phone from the desk to operate the open / close switch and stop the recording operation to the memory card. It is for information. Therefore, in this embodiment, the display unit 12 is configured to display this. That is, when the main body is lifted from the desk and the recording operation is stopped, a message such as "Cannot record. Please place the phone on the desk." Is displayed.

The earphone 14 having a remote control function
For the user who performs the recording operation by using the ', since the mobile phone body is not at hand, the earphone 14'
A message of the same content is played or a warning sound is emitted via.

In addition to the display of the message on the display unit 12, for example, the LED lamp 16 is made to blink or light to warn the user, the recording operation cannot be performed by a speaker (not shown), and the recording operation is recovered. You may comprise so that a method may be spoken.

[Fifth Embodiment] Next, FIG. 9 and FIG.
The fifth embodiment will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description. In this fifth embodiment, this mobile phone is usually equipped with a dedicated charging stand 6
It is supposed to be set to.

The same configuration as that of the first embodiment is used for this mobile phone, and the knob 32A of the open / close switch 32 is provided at a portion near the bottom portion of the rear case 10B of the main body. Has been done. On the other hand, the charging stand 6 is provided with a charging stand terminal 61 electrically connected to a charging terminal 17A provided on the main body of the mobile phone at the bottom of the insertion hole 6A for setting the main body of the mobile phone.

A projection 62 is provided on the inner peripheral surface of the insertion hole 6A of the charging base 6 at a portion corresponding to the knob 32A of the opening / closing switch 32 on the side of the mobile phone. When set, it is configured so that the knob 32A is pushed out by the projection 62 and the knob 32A sinks inside the main body of the mobile phone, and the open / close switch 32 is turned off.

Therefore, according to this embodiment, if the mobile phone being charged is accidentally dropped from the desk or the like for each charging base 6, the charging base 6 is removed when the mobile phone is detached from the charging base 6.
Since the pressing operation by the projection 62 is released, the knob 32A of the mobile phone pops out from the main body to open the open / close switch 32, and the recording operation to the memory card 2 is immediately stopped.

[Sixth Embodiment] Next, FIG. 11 and FIG.
The sixth embodiment will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description. In the sixth embodiment, the mobile phone has the same configuration as that of the first embodiment, but the main body of the mobile phone is attached to the user's clothes, for example, the pants 71 side by the mobile holder 7.

The portable holder 7 has a tubular bag portion 7A formed in a bag shape for accommodating a cellular phone, and the belt 72 is inserted into the outer surface of the tubular bag portion 7A. The insertion part 7B is provided. Also, this tubular bag portion 7
In A, a hole 7C into which the knob 32A of the open / close switch provided in the mobile phone is inserted is opened in the outer surface portion provided with the insertion portion 7B, and when it is stored in a normal position in a normal state, The knob 32A is pressed through the hole 7C by the user's body 73 or the trousers 71 that are clothes to prevent the knob 32A from jumping out.

Therefore, according to this embodiment, data is transmitted / received and the recording operation to the memory card is performed while the mobile phone is attached to the belt 72 passed through the pants 71 of the user via the mobile holder 7. If the mobile phone holder 7 comes off the belt 72 or the mobile phone falls out of the mobile phone holder 7 during operation, the open / close switch knob 32A
Is released from the pressing action and jumps out.

As a result, the open / close switch is actuated and the danger detection signal is output to the control section. Therefore, the control section which receives this signal can detect the drop operation and immediately stop the recording operation.

[Seventh Embodiment] FIG. 13 and FIG.
The seventh embodiment will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description. In the seventh embodiment, the knob 32A 'of the open / close switch 32' is installed at the bottom of the rear case 10B near the open / close door 21, for example, near the hinge 21A, and the memory card is provided at the bottom of the main body. 2 is inserted into the holder 22. The opening / closing door 21 is opened and operated at the same time so that the switch is turned on and a danger detection signal is output.

That is, in this embodiment, when the opening / closing door is opened to take out the memory card from the holder 22 while the main body of the mobile phone is placed on the desk surface T, the main body unit is interlocked with the opening / closing door. The bottom side with the open / close door 21 is the open / close door 21.
Since it is pushed away from the desk top surface T by being pushed to, the knob 32A which has been pushed against the desk top surface T and has retracted into the main body until then.
´ pops out of the body. As a result, the control unit that has detected the opening operation of the opening / closing door 21 can immediately stop the recording operation on the memory card. Further, by installing the open / close switch 32 ', the open / close switch of the open / close door 21 can also be used, so that the number of parts can be reduced.

[Eighth Embodiment] Next, an eighth embodiment will be described with reference to FIG. In this embodiment, the same parts as those in the first embodiment are designated by the same reference numerals to avoid redundant description. In the eighth embodiment, like the first embodiment, the opening / closing switch knob 32A is normally exposed from the surface of the main body of the mobile phone, but cannot be re-attached to the periphery of the knob 32A. A patterned sticker 8 is attached.

In order to intentionally disable the drop detecting operation of the mobile phone, the sticker 8 is peeled off after the adhesive tape is attached from above the knob 32A to around the knob 32A. Is also configured to leave traces of tape sticking.

Therefore, the knob 32A of the open / close switch is stuck to the inside of the main body by adhering it with an adhesive tape or the like from above, and in other words, the open / close switch is artificially set in an inoperable state. Every other time, for example, it is prevented that another person or the like maliciously commits an illegal act such as dropping the mobile phone main body to cause a failure.

Although the mobile phones capable of recording / reproducing a memory card have been described in these embodiments, other electronic devices for recording / reproducing this memory card include, for example, a digital camera and a digital video. It can be applied to cameras and music recording / playback devices.

[0083]

As described above, according to the portable electronic device of the present invention, at the time of recording data, the drop impact force of the casing of the portable electronic device acts to stop the power supply instantaneously. Causes an abnormal current fluctuation in the card memory,
In order to prevent the memory card from being damaged, it is equipped with a safety protection device that stops the recording operation of this electronic device by detecting the drop of the portable electronic device or the risk of falling. Even if you drop it on the floor, you can stop the operation of writing or reading data to or from the memory card before the safety device activates and the impact force from the drop acts, resulting in electrical damage to the memory card. Will be able to prevent.

[Brief description of drawings]

FIG. 1 is a perspective view showing a mobile phone according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a back surface of the mobile phone shown in FIG.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an enlarged sectional view of a main part of FIG.

5 is a block diagram showing an electrical configuration of the mobile phone shown in FIG. 1. FIG.

FIG. 6 is a sectional view showing a mobile phone according to a second embodiment of the present invention.

FIG. 7 is a perspective view showing a back side of a mobile phone according to a third embodiment of the present invention.

FIG. 8 is a perspective view showing a mobile phone according to a fourth embodiment of the present invention.

FIG. 9 is a perspective view showing a mobile phone according to a fifth embodiment of the present invention.

10 is a sectional view taken along line XX in FIG.

FIG. 11 is an explanatory diagram showing a state in which a mobile phone according to a sixth embodiment of the present invention is mounted.

12 is an explanatory diagram showing a state when the mobile phone shown in FIG. 11 is dropped.

FIG. 13 is an enlarged perspective view of essential parts showing a mobile phone according to a seventh embodiment of the present invention.

14 is an explanatory diagram showing an operation of the mobile phone shown in FIG.

FIG. 15 is a perspective view showing a mobile phone according to an eighth embodiment of the present invention.

FIG. 16 is a perspective view of a main part of a conventional digital camera.

FIG. 17 is a block diagram showing an electrical configuration of another conventional example.

[Explanation of symbols]

1 main body 10A front case 10B rear case 10D grip section 11 operation switch 12 display section (warning display means) 13A receiver section 13B transmission section 14 earphone (warning display section) 14 'earphone (warning display section) 16 LED lamp 17A charging terminal 17B Input / output terminal 18 Antenna 19 Speaker (warning display means) 2 Memory card 2A Card terminal 21 (for memory card) Open / close door 22 Holder 22A Holder terminal 31 Open / close switch 32 Open / close switch (main switch, danger detection means,
Safety protection device) 32 'open / close switch (main switch, danger detection means,
Safety protection device) 32A knob 32A 'knob 35 power supply unit 36 wireless unit 37 control unit (control means, safety protection device) 4 safety protection device 41 acceleration sensor (fall detection means, safety protection device) 42 auxiliary switch 42A (for auxiliary switch) ) Picking 5 Warning display means 6 Charging stand 61 Charging stand terminal 62 Protrusion 7 Mobile holder 7C hole 71 Clothes (trousers) 72 Belt 73 Body 8 Seal

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kenji Kino             3-1, Tsunashima-Higashi 4-chome, Kohoku-ku, Yokohama-shi, Kanagawa             Matsushita Communication Industry Co., Ltd. F-term (reference) 5B058 CA02 CA22 KA12 YA20                 5K023 AA07 BB20 NN06 PP03 PP12

Claims (15)

[Claims] 1. A portable electronic device equipped with a recording / reproducing means for writing or reading data to or from a memory card, wherein an external force such as a drop impact acts on the housing at the time of writing or reading data, and the power source is turned on instantaneously. A portable electronic device provided with a safety protection device for preventing the memory card from being broken when the memory card is disconnected. 2. The safety protection device includes a fall detection unit that detects a fall of the portable electronic device, and a control unit that detects the fall and stops a writing or reading operation of the portable electronic device. The mobile electronic device according to claim 1, wherein the fall detection unit is configured by an acceleration sensor provided inside a housing of the mobile electronic device. 3. The safety protection device includes a danger detection unit that detects a drop or a risk of falling of the portable electronic device,
And a control means for detecting the fall or the danger of falling to stop the writing or reading operation of the electronic device, and a knob for projecting the danger detecting means to the outside of the housing of the portable electronic device. The mobile electronic device according to claim 1, wherein the mobile electronic device comprises an open / close switch. 4. The portable electronic device according to claim 3, wherein the opening / closing switch constituting the danger detecting means is provided at a plurality of locations outside the housing of the portable electronic device. 5. The knob of the open / close switch is provided on the bottom of the casing of the portable electronic device, and at least one on a grip for holding the casing of the portable electronic device. The portable electronic device according to claim 3. 6. The opening / closing switch on the bottom of the housing is usually
It is characterized by a normally open switch that is turned off when it is placed on a work surface such as a desk, and is turned on when it is away from the work table by being held by a user. The portable electronic device according to claim 5. 7. A release means is provided for permitting a write operation or a read operation to a memory card even in a standby mode in which the fall detection operation by the fall detection means or the danger detection operation by the danger detection means is enabled. The mobile electronic device according to claim 1, wherein the mobile electronic device is a mobile electronic device. 8. The main switch is provided on the bottom of the casing of the portable electronic device as the opening / closing switch constituting the danger detecting means, and the release switch is provided on the casing of the portable electronic device outside the main switch. 4. The portable electronic device according to claim 3, further comprising one or more auxiliary switches forming the means. 9. In addition to the fall detection means or the danger detection means, the grip section is provided with the auxiliary switch, and when the auxiliary switch is in an ON state, a data write operation or a data read operation to the memory card is performed. The portable electronic device according to claim 2 or 3, wherein the portable electronic device is configured so that, if the auxiliary switch is in an off state, writing or reading data to or from the memory card cannot be performed. 10. A remote control device for writing or reading data to or from the memory card, and when the safety protection device is operating, writing or reading operation to or from the memory card by the remote control device. The portable electronic device according to any one of claims 1 to 9, further comprising a warning unit that displays a warning sound or a warning that it is not possible. 11. A portable electronic device having a recording / reproducing means for inserting / reading a data memory card into / from which a memory card for storing data is inserted into an insertion opening provided in the device. An opening / closing door and a switch for detecting the open / closed state of the opening / closing door are provided at the insertion opening of the portable electronic device, and the portable electronic device is provided with a fall detection means for detecting a fall of the portable electronic device, or the portable electronic device. A portable electronic device comprising a danger detecting means for detecting a fall or a danger of falling, wherein the switch also serves as the fall detecting means or the danger detecting means. 12. The portable electronic device according to claim 11, wherein the switch that also serves as the danger detecting unit is an opening / closing switch provided with a knob near the opening / closing door at the bottom of the housing. 13. The seal according to any one of claims 3 to 12, wherein a seal that cannot be re-attached once peeled off is provided around the knob of the open / close switch that constitutes the danger detecting means. Portable electronic devices. 14. A charging stand for a portable electronic device, comprising a recording / reproducing means for writing or reading data to or from a memory card, wherein the open / close switch is used as a danger detecting means for detecting a risk of falling of the portable electronic device. A charging stand for a portable electronic device, wherein the opening / closing switch is turned on when the portable electronic device is dropped together with the charging stand on the charging stand. 15. A portable holder for accommodating a main body of a portable electronic device equipped with a recording / reproducing means for writing or reading data to or from a memory card and to be worn on a body or clothes, wherein the portable electronic device is provided with the portable holder. As a danger detecting means for detecting a fall or a risk of falling of an electronic device, an opening / closing switch having a knob protruding outside the housing of the portable electronic device is provided, and the knob of the opening / closing switch is attached to the body or the clothing side. A hole for exposing and holding the knob against the body or clothing side of the wearer of the portable holder to hold the open / close switch in an off state,
When the portable electronic device is opened in at least one place and the portable electronic device is dropped from the holder or the portable electronic device separated from the body or clothes, the knob exposed from the hole is outside the main body of the portable electronic device. A portable holder for a portable electronic device, characterized in that the opening / closing switch is turned on to pop out.