JP2001266955A - Card battery and electronic equipment to use it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card battery and electronic equipment wherein an accident by mounting error can be prevent beforehand, in the case the card battery is mounted and used on the electronic equipment equipped with a card slot on which a memory card or the like is mounted. SOLUTION: To the card battery 51, a flash memory 56 that houses an attribute information of a battery such as a battery classification, rating terminal voltage, rating battery capacity or the like is installed. Since a CPU 42 of the total control part of the electronic equipment side reads this attribute information and operates a switching element S1, S2 so that charging is made only for appropriate card secondary batteries based on the attribute information, such accidents that batteries which do not fit for the electronic equipment is mounted by mistake to destroy the electronic equipment or that a normal action is not provided can be prevented beforehand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card-type battery used for a digital camera and other portable electronic devices, and an electronic device using the battery.

[0002]

2. Description of the Related Art In digital cameras and other portable electronic devices, batteries are used as power sources, so that it is required to minimize power consumption. That is, if a large battery is used, the battery can be used for a long time, but the weight of the electronic device increases and the size of the electronic device increases, so that portability is impaired.

On the other hand, some portable electronic devices use a memory card as an information recording medium, and some have a card slot for this purpose. In an electronic device provided with a card slot of this type, an electronic device has been proposed in which a card-type battery is configured to be able to be inserted into a card slot in which a memory card is inserted so that the electronic device can be used for a long time. (Japanese Patent Application Laid-Open Nos. 8-278835 and 10-25458).
No. 6).

[0004]

However, since card-type batteries include a primary battery and a secondary battery, when a card-type battery is installed in a card slot, the card-type battery installed on the electronic device side is not used. It is necessary to provide a means for identifying whether the battery is a primary battery or a secondary battery. If there is no such identification means, there is a possibility that a person handling the electronic device may mistakenly operate the secondary battery while attaching the primary battery and perform charging.

[0005] In addition, similar to conventional general batteries, card-type batteries are also assumed to have various terminal voltages and battery capacities suitable for electronic equipment to be used. If there is no means to identify attribute information indicating electronic devices on the electronic device side, incorrectly installing batteries that are not compatible with portable electronic devices, destroying the electronic devices,
It may not work properly.

Further, since the card type secondary battery is configured to use a dedicated charger for charging,
This requires two chargers in addition to a charger for charging a secondary battery mounted inside the electronic device, which makes it difficult to use the electronic device.

[0007] On the other hand, a portable electronic device using a card-type battery generally has only one card slot in order to make the whole compact and improve portability. For this reason, if a card-type battery is installed in the card slot, there is a disadvantage that other card-type devices such as a memory card cannot be used. There is a disadvantage that it cannot be done.

In addition, portable electronic devices are designed on the assumption that ordinary batteries (eg, AA batteries) mounted inside the devices are used. For this reason, the relationship between a card-type battery mounted in a card slot and a normal battery mounted therein, for example, which battery is preferentially used has not been sufficiently considered.

An object of the present invention is to solve the above-described various problems in a card-type battery and a portable electronic device to which the battery is mounted.

[0010]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and the invention of claim 1 is a card-type battery which can be used by being inserted into a card slot of an electronic device. A first terminal connected to a card slot terminal; a memory storing attribute information of a card-type battery in advance; the first terminal supplies power to an electronic device to be connected, and the electronic device A card-type battery connected to an internal charger, wherein the second terminal is a terminal for outputting attribute information of the card-type battery stored in the memory to the connected electronic device. It is.

The attribute information of the card-type battery stored in the memory includes attribute information indicating whether the battery is a primary battery or a secondary battery, attribute information indicating the rated battery voltage of the battery, and rated battery voltage of the battery. The attribute information indicates the capacity.

According to a fifth aspect of the present invention, there is provided a power supply connection terminal,
An electronic device including a card slot in which a card-type device including a card-type battery can be removably mounted, wherein the electronic device operates on a commercial power supply when the electronic device is supplied with power via a commercial power supply connection terminal, When a card-type battery is installed in the slot, the battery operates as a power source.When a card-type secondary battery is installed in the card slot while power is supplied through the commercial power supply connection terminal, the internal An electronic device characterized by being configured to be able to charge a card type secondary battery by the charger of (1).

The card slot has a first terminal for connecting a battery terminal of a card type battery to a power supply circuit of an electronic device.
And a second terminal for connecting a signal terminal of a card-type device including a card-type battery to a control circuit of the electronic device.

Further, the electronic device identifies the attribute of the battery based on the attribute information of the battery stored in the memory attached to the attached card type battery.

Further, the electronic device determines whether or not the card-type battery satisfies the charging permission condition based on the attribute information of the mounted card-type battery. Is provided with a control circuit that inhibits the operation.

The charging permission condition is that the card type battery is a secondary battery.

Further, the electronic device has a plurality of card slots, each of which can be charged by mounting a card-type secondary battery therein, and charging the inserted card-type secondary battery. In the case of, a display means for displaying that the battery is being charged may be provided.

According to a twelfth aspect of the present invention, there is provided an electronic apparatus having a plurality of card slots to which a card-type apparatus including a card-type battery can be removably mounted, wherein at least one card slot includes a card-type battery. An electronic device in which a card-type device can be mounted, and card-type devices other than a card-type battery can be mounted in other card slots.

At least one of the card slots has a first terminal for connecting a battery terminal of the card type battery to a power supply circuit of the electronic device, and a signal terminal of the card type battery for the electronic device. And a second terminal connected to the control circuit.

[0020] The card-type device is a memory card that records information output from the electronic device, and that the recorded information can be read by the electronic device. The electronic device may be specifically a digital camera.

[0021]

Embodiments of the present invention will be described below.

First, electronic equipment suitable for carrying out the present invention will be described. FIG. 1 is a front view of a digital camera which is one of portable electronic devices, FIG. 2 is a rear view thereof, FIG. 3 is a side view of the camera body side, and FIG. 4 is a bottom view thereof.

As shown in FIG. 1, the digital camera 10 includes a camera body 11 and an image pickup unit 21. A grip 13 for holding the camera is provided in front of the camera body 11.
And the flash emitter 14 are arranged, and the camera body 1
A shutter button 19 is provided on the upper surface of the shutter 1.

A zoom lens 22 with a macro function, which is a photographing lens, and an optical viewfinder 2
3 and an AF sensor 24 for measuring the subject distance. Although not shown in FIG.
The CCD 31 is arranged at the image forming position 2 and the CCD 31
The image signal detected by the controller 31 is transmitted to a control circuit 4 described later.
0 and is recorded on the memory card.

As shown in the rear view of FIG. 2, on the rear surface of the camera body 11, a substantially central part is used for monitor display of a photographed image corresponding to a viewfinder of a normal camera and for reproduction display of a recorded image. Backlit LC
A D display unit 12 is provided.

A key switch group K1 to K6 for operating the digital camera and a power switch PS are arranged below the LCD display section 12, and an LED display element L1 for turning on the power is displayed on the left side thereof. LED that lights up to indicate that image processing is in progress, such as accessing a memory card.
The display element L2 is arranged.

Further, on the back of the camera body 11,
A shooting / playback mode setting switch M1 for switching between a "shooting mode" and a "playback mode" is provided. The photographing mode is a mode in which a photograph is taken, and the playback mode is a mode in which a photographed image recorded on a memory card is displayed on the LCD display unit 1.
2 is a mode for reproducing and displaying.

The photographing / playback mode setting switch M1 is set to 2
The slide switch is a contact switch. For example, slide down to set the playback mode, and slide up to set the shooting mode.

On the right side of the rear surface of the camera body 11, a four-way switch Z having four buttons Z1 to Z4 is provided. When the buttons Z1 to Z2 are pressed, a zoom motor (not shown) is driven to drive a zoom lens. When the zooming operation of 22 is performed and buttons Z3 to Z4 are pressed, exposure control is performed.

On the back of the image pickup section 21, an LCD display section 12 is provided.
An LCD button 24 for turning on / off the display of the LCD is provided.
The display unit 12 is switched between a display state and a light-off state. This is because the LCD display unit 12 is turned off (turned off) to save power when shooting is performed using only the optical viewfinder 23 exclusively.

A button adjacent to the LCD button 24 is a macro shooting button 25. At the time of macro photography, by pressing the macro photography button 25, a focus motor (not shown) is driven, and the zoom lens 22 is set to a state in which macro photography is possible.

As shown in the side view of FIG. 3, on the side of the camera body 11, an AC adapter for converting AC supplied from a commercial AC power supply to DC and supplying the DC power, and a connector 15 for connecting a DC power supply are provided. Is provided.

As shown in the bottom view of FIG. 4, a battery chamber 17 and two card slots 18a and 18b for mounting a memory card, a card-type battery, and other card-type devices are provided on the bottom of the camera body 11. Is provided. Usually 2
One of the card slots is equipped with a memory card and the other is equipped with a card-type battery, and any of the card slots can be used with both a memory card and a card-type battery. I have. The determination of whether the attached device is a card-type battery or a memory card or other card-type device will be described later in detail.

The battery compartment 17 can be loaded with a power supply battery in which four AA batteries are connected in series, and the loading opening of the battery compartment 17 is configured to be closed by a clamshell type lid 17c. The mounting openings of the card slots 18a and 18b are configured to be closed by a single clamshell-type lid 18c.

An opening 18d is formed in the lid 18c. When a card-type device other than a card-type battery or a memory card, for example, a USB card for connecting the digital camera 10 to a personal computer is loaded into the card slot, the digital camera 10 is connected to the USB card with the lid 18c closed. The cable can be pulled out through the opening 18d and connected to an external device such as a personal computer.

The card slots 18a and 18b have a signal terminal V (see FIG. 6) connected to a signal terminal 64 of the memory card and a signal terminal 54 of the card type battery (see FIGS. 7 and 8), as described later. In addition, battery terminals R and S (see FIG. 6) connected to the positive terminal 53a and the negative terminal 53b (see FIG. 7) of the card type battery are provided.

FIG. 5 shows the control circuit 4 of the digital camera 10.
0 is a block diagram of FIG. The control circuit 40 is mainly configured by an overall control unit 41 including a CPU 42,
A ROM 43 and a RAM 44 are connected to 2.

A CCD 31 for converting an optical image of a subject into an image signal and outputting the image signal is connected to an input / output port of the CPU 42 via an amplifier 32 and an A / D converter 33. 45, operation unit 46, LC
The D display unit 12 and the image memory 47 are connected.

The operation unit 46 includes a shutter button 19, key switches K1 to K6 for operating a digital camera, a quadruple switch Z (Z1 to Z4), a shooting / playback mode setting switch M1, an LCD button 24, and a macro shooting button 25. And the like.

Further, the input / output ports of the CPU 42
Card slot 1 via card interface 48
Signal terminals 8a and 18b are connected. A card-type battery 51, a memory card 61, and other card-type devices such as a USB card can be inserted into the card slots 18a and 18b.

Next, the operation of the control circuit 40 will be described. The CCD 31 converts the optical image of the subject formed by the zoom lens 22 into image signals of three primary color components of R (red), G (green), and B (blue) and outputs the image signals. , Are converted into digital signals by the A / D converter 33 and input to the CPU 42.

In this digital camera, since the aperture is a fixed aperture, exposure control is performed by a CCD corresponding to the shutter speed.
31 is performed by adjusting the charge accumulation time. If the subject has low brightness and proper exposure control cannot be performed,
The underexposure is corrected by adjusting the gain (signal level) of the image signal output from 31. The adjustment of the gain of the image signal is executed by an automatic gain control circuit (AGC) of the amplifier 32.

The processed image signal is stored in an image memory 4
7 is stored as image data, and when the LCD display unit 12 is set to the display state, it is displayed on the LCD display unit 12 as a captured image. When the photographing is completed, the image data stored in the image memory 47 is recorded on the memory card 61.

The processing of the image signal of the digital camera and the recording on the memory card 61 are the same as the signal processing of the known digital camera and the recording on the memory card, and are not directly related to the subject of the present invention. Detailed description is omitted.

The power control section 45 will be described. FIG. 6 shows a power supply controller 45 and a card slot 1 connected thereto.
It is a block circuit diagram which shows the part of 8a and 18b. The power control unit 45 is controlled by the CPU 42 of the overall control unit 41, and the switching elements S1 and S2 are controlled by the CPU 42.
Is an element whose on / off is controlled by

In FIG. 6, a connection point T is connected to a power control unit 45.
Power supply reference point, and the connection point T
Are connected via a switching element S1,
Further, a terminal A of the connector 15 (see FIG. 3) is connected to the connection point T.
Is connected. When a plug 71a of an AC adapter 71 that converts commercial AC power into DC is connected to the connector 15, DC is supplied from here.

The connector 15 has terminals a, b, and c.
The connector 15 has a plug 71 of the AC adapter 71.
When a is connected, the positive terminal of the plug 71a is connected to the terminal a,
The negative terminal is connected to the terminal c to supply a direct current. When the plug 71a is connected, the terminal a of the connector 15
And the terminal b are short-circuited, and AC is input to the input port of the CPU 42.
A signal indicating the connection of the adapter 71 is input.

A constant voltage regulator 72 and a voltage detection circuit 73 are connected to a connection point T via a power switch PS.
From the constant voltage regulator 72, power controlled to a constant voltage is output to the mechanism of each part of the camera and the CPU 42. When the power switch PS is on, the voltage detection circuit 73 detects the voltage at the connection point T and inputs the voltage to the input port of the CPU 42. The detection voltage is used to determine whether the voltage supplied from the power supply battery or the card type battery is appropriate.

The switching element S is connected to the connection point T.
2, the battery terminals R of the positive electrodes of the card slots 18a and 18b are connected. Card slots 18a and 18b
The negative battery terminal S is grounded.

Switching element S2 and card slot 1
8a and 18b between the positive battery terminal R
The overcurrent / terminal voltage detection circuit 74 is connected. Overcharge
The overcurrent detection circuit 74 detects the current supplied to the card type battery,
And the terminal voltage of the card-type battery is detected and input to the input port of the CPU 42 to determine whether the card-type battery is in an overcharged state.
It is used for determining whether the charging current is excessive and determining whether the terminal voltage of the card type battery is appropriate.

The signal terminals V of the card slots 18a and 18b are connected to the CPU 4 via a card interface 48.
2 input ports.

Next, the card-type battery 51 and the memory card 61 mounted in the card slot 18a or 18b will be described.

FIG. 7 is a perspective view showing the appearance of the card-type battery 51. As shown in FIG. The card-type battery 51 is a substantially rectangular parallelepiped having the same size as a memory card to be described later. Further, a signal terminal 54 is provided on the upper end face.

A battery body 55 is provided inside the card-type battery 51.
Is stored, and the positive electrode is connected to the positive terminal 53a and the negative electrode is connected to the negative terminal 53b. Attribute information indicating the battery standard, that is, whether the battery is a primary battery or a secondary battery, the rated terminal voltage, the rated battery A flash memory 56 storing attribute information indicating a capacity or the like is stored, and is connected to a signal terminal 54.

FIG. 8 is a perspective view showing the appearance of the memory card 61. The memory card 61 is a substantially rectangular parallelepiped having the same size as the card-type battery 51. The left and right side surfaces are provided with grooves 62a and 62b which engage with the ridges on the card slot side. 64 are provided. Flash memory 6 for recording image signals inside
3 is stored and connected to the signal terminal 64.

The positive terminal 53a and the negative terminal 5a of the battery of the card type battery 51 on the left and right side surfaces of the memory card 61.
The portion corresponding to 3b is made of an insulator.

Next, the control operation of the power supply control unit 45 will be described with reference to the flowcharts of FIGS. In addition,
The routine described below constitutes a subroutine in a main routine (not shown) for executing a control operation of the entire digital camera.

In the initial state where the power switch PS is off, the switching element S1 is set to on and the switching element S2 is set to off. When the power switch PS is turned on in this state, the CPU of the overall control unit 41
After 42 is reset, the control operation of the power supply control unit 45 is started.

First, the connection state of the AC adapter 71 is determined based on the connection state signal output from the terminal b of the connector 15 (step P1). When the AC adapter 71 is connected, the switching elements S1 and S2 are turned off (step P2), and whether the device mounted on the card slots 18a and 18b is a memory card or a card type battery is determined. Check (Steps P3, P
4).

That is, in the case of a card-type battery, the attribute information stored in the flash memory 56 incorporated in the battery is input to the CPU via the signal terminals V of the card slots 18a and 18b. It can be determined based on this.

When the mounted device is a card-type battery, whether or not the device is an appropriate card-type secondary battery is checked based on the attribute information of the battery, and it is determined whether or not the device is appropriate (step P5). , P6). Whether the battery is an appropriate card type secondary battery is checked based on whether the battery is a secondary battery, and whether the rated battery voltage and the rated battery capacity are predetermined.

When the mounted device is an appropriate card type secondary battery, the switching element S2 is turned on to start charging the card type secondary battery, and a display indicating that charging is being performed is displayed on the LCD display unit 12. Display (Step P
7). FIG. 11 shows an example of a display indicating that charging is being performed, which is displayed on the LCD display unit 12.

Based on the output of the overcharge / overcurrent / terminal voltage detection circuit 74, it is determined whether or not it is overcharge / overcurrent (step P8). If no overcharge or overcurrent is detected, the process returns to the main routine. Also, in the judgment of step P8,
When overcharging or overcurrent is detected, the switching element S2 is turned off to stop charging, and at the same time, the display indicating that charging is being displayed on the LCD display unit 12 is turned off (step P9), and the main routine is started. Return.

If it is determined in step P4 that the battery is not a card type battery, and if it is determined in step P6 that the battery is not an appropriate card type secondary battery, the process returns to the main routine.

When the AC adapter 71 is not connected in the judgment in step P1, the card slot 18a (18
It is checked whether the device mounted in b) is a memory card or a card-type battery, and a judgment is made (step P1).
1, P12). This is the same as step P5
A check is performed based on the information appearing on the signal terminals V of the card slots 18a and 18b. In the case of a card-type battery, the attribute information of the battery is input to the CPU via the signal terminal V, so that the determination is made based on this attribute information.

If it is determined in step P12 that the battery is not a card type battery, it is a memory card or other card type device, so that the process returns to the main routine. Since the details are not the subject of the present invention, the description is omitted.

If it is determined in step P12 that the attached device is a card-type primary battery, whether or not the device is an appropriate card-type primary battery is determined by attribute information stored in a flash memory 56 incorporated in the battery. A certain rated battery voltage, rated battery capacity, and overcharge / overcurrent / terminal voltage detection circuit 7
Check based on the current terminal voltage detected in 4,
It is determined whether it is appropriate (steps P13 and P14).

If it is determined in step P14 that the attached device is not an appropriate card-type primary battery, a warning display is displayed on the LCD display unit 12 (step P15).
The switching element S2 is turned off to prohibit the use of the mounted card-type primary battery (step P16), and the process returns to the main routine. An example of a warning display displayed on the LCD display unit 12 is shown in FIG.

In the judgment of step P14, if the mounted device is an appropriate card type primary battery, the battery chamber 1
The terminal voltage of the battery (eg, AA dry cell) loaded in the battery 7 is detected by a voltage detection circuit 73 to determine whether or not the terminal voltage is appropriate (step P17). The operation returns to the main routine, assuming that the battery is driven by the battery loaded in the battery 17.

If it is determined in step P17 that the terminal voltage of the battery loaded in the battery chamber 17 is inappropriate,
First, the switching element S2 is turned on so that the battery is driven by the card type primary battery (step P18). Next, the switching element S1 is turned off to disconnect the battery in the battery chamber 17 (step P19), and the process returns to the main routine.

In the display screen of the LCD display unit 12 of the digital camera 10 shown in FIGS. 11 and 12, the numeral "2" indicates the number of images stored in the image memory after the photographing is completed. “AUTO” indicates that the automatic flash emission function is set to be operable, and “14 MB” indicates the recordable capacity of the memory card.

[0072]

As described above in detail, the card-type battery according to the first aspect of the present invention has a battery type of whether the card-type battery is a primary battery or a secondary battery, a rated terminal voltage, a rated battery capacity, and the like. However, since the memory storing the attribute information of the battery is provided, it is possible to read the attribute information on the electronic device side and charge only the appropriate secondary battery. It is possible to prevent an accident that the electronic device is destroyed or a normal operation cannot be obtained by improperly mounting the battery.

An electronic device according to a fifth aspect of the present invention operates on a commercial power supply when supplied with power from a commercial power supply, and operates on the card-type battery when a card-type battery is inserted into a card slot. When a card-type secondary battery is installed in a card slot in a state where power is supplied from a commercial power source, the card-type secondary battery is charged.

Then, based on the attribute information of the battery recorded in the memory provided in the card-type battery inserted in the card slot, charging is performed only when the inserted card-type battery is an appropriate secondary battery. In addition, since charging is prohibited in the case of an inappropriate battery, even if a battery that is not compatible with the electronic device is mistakenly mounted, an accident that destroys the electronic device can be prevented.

An electronic device according to a twelfth aspect of the present invention is:
A plurality of card slots are provided, and a card-type device including a card-type battery can be mounted in at least one card slot, and another card-type device including a card-type battery can be mounted in another card slot. It is a thing.

Thus, in this electronic device, a memory card and a card-type battery can be used simultaneously, and in the case of a portable electronic device, portability and operability can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a front view of a digital camera according to an embodiment of the present invention.

FIG. 2 is a rear view of the digital camera shown in FIG.

FIG. 3 is a side view of the digital camera shown in FIG. 1 on the camera body side.

FIG. 4 is a bottom view of the digital camera shown in FIG. 1;

FIG. 5 is a block diagram of a control circuit of the digital camera.

FIG. 6 is a block circuit diagram of a power supply control unit.

FIG. 7 is a perspective view showing the appearance of a card-type battery.

FIG. 8 is a perspective view showing the appearance of a memory card.

FIG. 9 is a flowchart (part 1) illustrating the control operation of the power supply control unit.

FIG. 10 is a flowchart (part 2) illustrating the control operation of the power supply control unit.

FIG. 11 is a diagram showing an example of a display indicating that charging is being performed, which is displayed on the LCD display unit.

FIG. 12 is a diagram showing an example of a warning display displayed on an LCD display unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Digital camera 11 Camera main body part 12 LCD display part 13 Grip 14 Flash light emitting device 15 Connector 17 Battery compartment 17a Power supply battery 18a, 18b Card slot 19 Shutter button 21 Imaging part 22 Zoom lens 23 Optical finder 31 CCD 32 Amplifier 33 A / D Converter 40 Control circuit 41 Overall control unit 42 CPU 43 ROM 44 RAM 45 Power supply control unit 46 Operation unit 47 Image memory 48 Card interface 51 Card type battery 53a Positive terminal 53b Negative terminal 54 Signal terminal 55 Battery body 56 Flash memory 61 Memory card 63 Flash memory 64 Signal terminal 71 AC adapter 72 Constant voltage regulator 73 Voltage detection circuit 74 Overcharge / overcurrent / terminal voltage detection circuit S1, S2 Switching Child

Continued on the front page F term (reference) 5C022 AA13 AC00 AC69 AC73 5G003 AA01 BA01 DA04 DA18 FA04 FA07 FA08 GC05 5H030 AS05 AS11 AS18 BB01 FF41 FF43 5H040 AS17 AT04 DD26 FF03 GG07

Claims (15)

[Claims] 1. A card type battery which can be used by being inserted into a card slot of an electronic device, comprising: first and second terminals connected to a card slot terminal of the electronic device; A memory storing information, wherein the first terminal is a terminal connected to a charger inside the electronic device while supplying power to the connected electronic device;
The card-type battery, wherein the second terminal is a terminal for outputting attribute information of the card-type battery stored in the memory to a connected electronic device. 2. The card-type battery according to claim 1, wherein the attribute information of the card-type battery stored in the memory is attribute information indicating whether the battery is a primary battery or a secondary battery. 3. The card-type battery according to claim 1, wherein the attribute information of the card-type battery stored in the memory is attribute information indicating a rated battery voltage of the battery. 4. The card-type battery according to claim 1, wherein the attribute information of the card-type battery stored in the memory is attribute information indicating a rated battery capacity of the battery. 5. An electronic device comprising: a commercial power supply connection terminal; and a card slot into which a card-type device including a card-type battery can be removably mounted, wherein the electronic device is supplied with power via a commercial power supply connection terminal. When the card-type rechargeable battery is installed in the card slot, it operates using the rechargeable battery as a power source. An electronic device, wherein when the card type secondary battery is mounted, the card type secondary battery can be charged by a charger inside the electronic device. 6. The card slot includes a first terminal for connecting a battery terminal of a card-type battery to a power supply circuit of an electronic device, and a signal terminal of the card-type device including the card-type battery for a control circuit of the electronic device. The electronic device according to claim 5, further comprising a second terminal to be connected. 7. The electronic device according to claim 5, wherein the electronic device identifies the attribute of the battery based on the attribute information of the battery stored in a memory attached to the attached card-type battery. Electronics. 8. The electronic device determines whether or not the card-type battery satisfies a charging permission condition based on the attribute information of the attached card-type battery, and charges the battery if the charging permission condition is not satisfied. 8. The electronic device according to claim 7, further comprising a control circuit for prohibiting the operation. 9. The electronic device according to claim 8, wherein the charge allowable condition is that the card type battery is a secondary battery. 10. The electronic device according to claim 5, wherein the electronic device has a plurality of card slots, and each of the card slots can be charged by mounting a card-type secondary battery. . 11. The electronic device according to claim 5, wherein the electronic device includes a display unit for displaying that the card-type secondary battery is being charged when the card-type secondary battery is being charged. machine. 12. An electronic device having a plurality of card slots into which a card-type device including a card-type battery can be removably mounted, wherein at least one card slot has a card-type device including a card-type battery mounted therein. An electronic device, wherein a card-type device other than a card-type battery can be inserted into another card slot. 13. The electronic device according to claim 13, wherein at least one of the card slots has a first terminal for connecting a battery terminal of the card type battery to a power supply circuit of the electronic device, and a signal terminal for the card type battery. Connected to the control circuit of the second
13. The terminal according to claim 12, wherein
Electronic device as described. 14. The card-type device according to claim 12, wherein the card-type device records information output from the electronic device, and the recorded information is a memory card readable by the electronic device. Electronic devices. 15. The electronic device according to claim 12, wherein the electronic device is a digital camera.