JPH10254585A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic equipment capable of turning on/off power supply by opening and closing a cover. SOLUTION: This electronic equipment 20 is provided with a power supply switch 18 turned on/off by opening and closing the cover in addition to a normal power supply switch 16. The power supply switches 16 and 18 are connected to a decoder circuit 22 and the decoder circuit 22 sends out prescribed power supply on/off signals to a power supply on/off operation circuit 21 by the combinations of on/off signals from the power supply switches 16 and 18. A key for selecting the operation mode of the decoder circuit 22 is set to the input means of the electronic equipment 20, the power supply is turned on/off by the on/off of the power supply switch 16 in a normal operation mode and the on/off by opening and closing the cover is given priority in a second operation mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device such as a portable electronic computer, an electronic organizer, a notebook or sub-notebook personal computer (hereinafter referred to as a personal computer), and more particularly to a power supply that can be turned on and off when a lid is opened and closed. Electronic devices.

[0002]

2. Description of the Related Art An electronic device such as a portable electronic computer, an electronic organizer, an electronic book (electronic dictionary), a notebook or sub-notebook personal computer usually comprises a main body and a lid which can be opened and closed with respect to the main body. Is provided with a keyboard or touch panel as input means and a liquid crystal display as display means, and is used with the lid open. Such an electronic device is connected to a commercial power supply via an AC adapter or provided with a rechargeable battery or a dry battery as a power source, apart from a simple device using a solar battery as a power source. Is configured to be input. The power switch is usually provided near the keyboard or on the touch panel. The power is turned on by operating the switch with the lid open, and after use, the power is turned off and the lid is closed.

[0003]

In such an electronic device, therefore, there is a problem in that if the power supply is forgotten to be turned off after use and the lid is closed, the battery is wasted. Also, since these electronic devices are not used with the lid closed, it is desirable that turning on and off the power be linked with opening and closing of the lid. However, if you simply link the conventional power switch with opening and closing the lid, if you accidentally close the lid,
There is a problem that the power is always turned off, and there is a possibility that the calculation result or data up to that time may be damaged.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic apparatus which can be used in combination with existing switch means, and which is provided with switch means for turning on / off the power when the lid is opened and closed. It is an object of the present invention to provide an electronic device in which power is turned off and on due to a malfunction.

[0005]

According to an embodiment of the present invention, there is provided an electronic apparatus comprising: input operation means; operation means for performing a predetermined operation based on an input from the input operation means; Display means, and a power supply means for driving these means, wherein each means is incorporated in either the device main body or a lid that can be opened and closed with respect to the main body, and at least one of the lid and the main body has a lid opening / closing operation. Accordingly, switch means for generating a signal for turning on / off the power supply means is provided.

The power can be turned on by opening the lid, and the power can be turned off by closing the lid. Therefore, the operability is good, and the waste of power due to forgetting to turn off the power can be eliminated.

Further, the electronic apparatus of the present invention is provided in the input means and has a first switch means for generating a signal for turning on and off the power supply means, and a signal provided in at least one of the lid and the main body for turning on and off the power supply means. A generated second switch means, and a predetermined power supply connected to the first and second switch means and determined according to a combination of signals from the first and second switch means based on an input from the input means Decoder means for sending an on / off signal to the power supply means.

When a normal operation mode is selected by an input from the input means, the decoder means generates an on / off signal to turn on / off the power supply based on a signal from the first switch means, When the second operation mode is selected, a predetermined power ON / OFF signal determined according to a combination of signals from the first and second switch means is generated. By appropriately setting conditions for the decoder means to generate a signal, power can be turned on and off by turning on and off the second switch means in response to opening and closing of the lid.
At this time, since the operation mode is selected by the user, it is possible to prevent the power from being turned off due to a malfunction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the appearance of an electronic organizer according to the present invention. This electronic organizer 1 comprises a main body 10 and a lid 11. The lid 11 is openable and closable with respect to the main body 10 by a hinge 12, and is fixed to the main body 10 when closed by engaging a hook 13 provided at a tip of the lid 11 with a hole 14 provided at a corresponding portion of the main body. You.

The main body 10 is provided with a touch panel 15 for making a predetermined input to the electronic organizer.
5 includes a menu key, a function selection key for selecting a process from a displayed menu, a function key for performing a predetermined process, an operation key such as an icon, and a power switch 16 for turning on / off the power. 1 switch means)
Are provided on a touch panel, and a display unit 17 for displaying processing contents and processing results is provided.

Inside the main body, there are provided arithmetic processing means (not shown) for performing predetermined arithmetic and data processing based on an input from the touch panel 15, and a power supply device for driving the same.

The electronic organizer further includes a power switch 16
Separately from the above, a second power switch 18 for turning on and off the power in conjunction with opening and closing of the lid 11 is provided. The power switch 18 is connected to the hinge 12 of the main body 10 as shown by A in FIG.
The touch panel 15 is provided at a position further away from the touch panel 15 than the surface on which the touch panel 15 is formed, so that an operator does not press the touch panel 15 by mistake. on the other hand,
The lid 11 is provided with a projection 19 at a position facing the power switch 18 when the lid 11 is closed.
9 presses down the power switch 18 and turns on the switch. When the lid 11 is opened, the projection 19 separates from the power switch 18 and turns off the switch. The power switch 18 may be turned off when depressed. In this case, the design of a decoder or the like described later changes, but the concept is the same.

In this embodiment, the power switch 18 is provided on the main body and the projection 19 is provided on the lid. However, any of them may be provided on the main body. Further, these positions are not particularly limited. For example, it is possible to provide the power switch 18 in a hole of the main body with which the hook 13 is engaged so that the hook 13 can be pressed down, but as shown in the present embodiment, Providing the hinge at a position farther from the hinge is advantageous in that a large stroke pressing operation can be achieved with a small rotation angle.

The touch panel 15 is provided with a mode selection key 151 for selecting an operation mode for turning the power on and off, in addition to the normal operation keys. When the mode selection key 151 is pressed, the power switch 16
The user can select whether to turn on / off the power or give priority to turning on / off the power by the power switch 18. The function of the mode selection key 151 may be given to any one of the keys on the conventional touch panel or a combination of two or more keys. In order to notify the operator that the second mode is selected, the pressed state of the mode selection key is displayed on the mode selection key 151 on the touch panel or a display means such as a light emitting element is displayed near the key. Is preferably provided. It is more preferable to display the information on the touch panel from the viewpoint of power saving.

FIG. 2 shows a power supply circuit 2 of such an electronic organizer.
FIG. Power supply circuit 20 shown in FIG.
Is provided with a power ON / OFF operation circuit 21 for operating power ON / OFF (not shown), and a decoder circuit 22 for sending a control signal to the power ON / OFF operation circuit 21.

The decoder circuit 22 receives signals from the two power switches 16 and 18 and also receives a signal from the mode selection key 151, and operates in the operation mode selected by the mode selection key 151. A signal corresponding to the on / off of is transmitted. Power ON / OFF operation circuit 2
1 turns on the power when the signal from the decoder circuit 22 is at a high level (H), and turns off the power when the signal is at a low level (L). At this time, the power ON / OFF operation circuit 21
Has a built-in chatter prevention circuit (not shown)
It is desirable to prevent chattering at power-on.

The configuration and operation of the decoder circuit 22 will be described in more detail with reference to Table 1.

The decoder circuit 22 inputs ON / OFF signals from the power switches 16 and 18, respectively, and receives a pair of inverter gates 201 and 202 for transmitting two different signals and a signal from the mode selection key 151. A gate 203, four AND gates 204 to 207 having the outputs of the inverter gates 201 and 202 and the output of the gate 203 as inputs, and an OR gate having the outputs of the AND gates 204 to 207 as inputs
And 208. The output of the OR gate 208 is the output of the decoder circuit 22.

The AND gates 204 to 207 further have a signal value C1.
To C4 are input. These signal values C1 to C4
Is set to a predetermined value in advance. In the illustrated embodiment, C1 and C3 are set to L, and C2 and C4 are set to H.

In this decoder circuit, as shown in Table 1, both the power switch 16 and the power switch 18 are off (L).
When the signal C1 is output from the AND gate 204 and the power switch 16 is on and the power switch 18 is off, the signal C2 is output from the AND gate 205 and when the power switch 16 is off and the power switch 18 is on. A
The signal C3 is output from the ND gate 206, and the power switch 1
When both the switch 6 and the power switch 18 are turned on, the signal C4 is output from the AND gate 207. When the input of the gate 203 is H, the output is set to L regardless of the input of the power switch.

[0022]

[Table 1] Therefore, when the mode selection key 151 is not pressed down, that is, in the normal operation mode, when the power switch 16 is on, the output of the OR gate is C2 or C4, and the power on signal is output from the decoder circuit 22 to the power on / off operation circuit 21. Sent to When the power switch 16 is off, the output of the OR gate is C1 or C3.
Sends a power-off signal to the power-on / off operation circuit 21.
As described above, in the normal operation mode, the power can be turned on and off only by turning on and off the power switch 16 regardless of whether the power switch 18 is on or off.

Next, when the mode selection key 151 is pressed, the input of the gate 203 is L when the power switch 18 is off (when the lid is open), but when the power switch 18 is on (when the lid is open). Is closed), the input of the gate 203 is set to H. Therefore, when the power switch 16 is on and the power switch 18 is off, the signal C2 is output from the AND gate 205, and the power-on signal is supplied to the power-on / off operation circuit 21.
When the power switch 18 is turned on with the lid closed, the input of the gate 203 becomes H. Therefore, the output of the decoder circuit 22 becomes L regardless of the on / off state of the power switch 16, and the power-off signal Is sent to the power on / off operation circuit 21. When the lid is opened again in this state, Gade 20
The input of 3 becomes L, and if the power switch 16 is already on, a power-on signal is sent to the power-on / off operation circuit 21,
Power will be turned on.

As described above, in the second operation mode, the power can be turned on and off by operating the normal power switch 16 while the lid is open, and the lid can be closed regardless of whether the power switch 16 is on or off. Then the power is turned off. Therefore, when the user selects this operation mode, the power can be turned on and off by opening and closing the lid with the power switch 16 turned on. In this case, the operator can confirm that the second mode is the second operation mode by pressing the mode selection key or by turning on the display means including the light emitting element or the like, so that malfunction can be prevented.

In the embodiment shown in FIG. 2, in the normal operation mode, the power is turned on and off only by turning on and off the power switch 16. In the second operation mode, the power is turned on and off by opening and closing the lid, that is, by turning on and off the power. Although the case where the switch 18 is turned on and off is described, the operation mode is not limited to this, and can be arbitrarily changed by changing the design of the decoder circuit.

For example, by using a circuit as shown in FIG. 3 as a decoder circuit, in a normal operation mode, the power is turned on and off only by turning on and off the power switch 16,
In the second operation mode, the power can be turned on / off only by turning on / off the power switch 18.

The decoder circuit 22 'shown in FIG. 3 is similar to the decoder circuit 22 shown in FIG.
Two circuits (221, 222) comprising R gates are provided symmetrically. One circuit 221 sets the outputs C2, C4 when the power switch 16 is on, and the other circuit 222 sets the power switches C2, C4. Outputs C'1 and C'2 when 18 is off are set to H (Table 2). And in normal operation mode the circuit
The input of the gate 203 ′ of 222 is set to H, and the output from the circuit 221 controls the power on / off. In the second operation mode, the input to the gate 203 of the circuit 221 is set to H, and the output from the circuit 222 controls the turning on and off of the power. Thus, the normal operation mode operates in exactly the same manner as the embodiment shown in FIG. Power on / off can be controlled.

Also in this embodiment, each gate of both circuits 221 and 222
The selection of which of the inputs 203 and 203 'is set to H can be performed using the mode selection key 151 described above. For example, a state where the mode selection key 151 is not pressed is set to a normal mode, and in this case, an input of the gate 203 ′ is set to H,
When the mode selection key is pressed, the second operation mode is set and the input of the gate 203 is set to H.

[0029]

[Table 2] In the case of this embodiment, in the state where the second operation mode is selected, regardless of whether the normal power switch 16 is pressed, the electronic notebook is powered on when the lid is open, Power can be turned off by closing the lid.

Although the present invention has been described by taking an electronic organizer as an example, the present invention can be applied not only to an electronic organizer but also to any electronic device that is used by opening and closing a lid.
When the present invention is applied to a notebook personal computer or the like, a procedure necessary to protect an application or a storage medium that is running when the power is turned off, that is, automatically terminates an application or saves recorded data. It is necessary that the program is incorporated as follows. Such a program is the same as that executed when the power is turned off in a normal notebook personal computer or the like.

[0031]

As is apparent from the above embodiments, according to the present invention, in an electronic device which can be used by opening the lid, in conjunction with opening and closing of the lid separately from a normal power switch. By providing a second power switch for generating a power on / off signal, an electronic device with excellent operability can be provided, in which the power can be turned on at the same time as the lid is opened, and the power can be turned off when the lid is closed. it can. Further, waste caused by forgetting to turn off the power supply can be eliminated.

By providing a decoder means for generating a predetermined power-on / off signal by a combination of a normal power switch and a second power switch, power-on / off control can be performed in a user's desired operation mode. it can.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an electronic organizer as one embodiment of an electronic apparatus according to the present invention.

FIG. 2 is a block diagram showing one embodiment of a power supply circuit of the electronic organizer of FIG. 1;

FIG. 3 is a diagram showing another embodiment of the decoder circuit of the electronic organizer of FIG. 1;

[Explanation of symbols]

 10 body 11 lid 15 input operation means 16 power switch (first switch means) 17 display Means 18 second power switch 21 power on / off operation circuit (power supply circuit) 22 decoder circuit 151 mode selection key

Claims (2)

[Claims] An input operation means, an operation processing means for performing a predetermined operation and processing based on an input from the input operation means, a display means for displaying an operation and processing result by the operation processing means,
A power supply means for driving these means, wherein each means is incorporated in one of a device main body and a lid that can be opened and closed with respect to the main body, wherein at least one of the lid and the main body is used to open and close the lid. An electronic apparatus, further comprising a switch unit for generating a signal for turning on and off the power supply unit. 2. An input operation means, an operation processing means for performing a predetermined operation / processing based on an input from the input operation means, a display means for displaying an operation / processing result by the operation processing means,
Power supply means for driving these means, wherein each means is incorporated in either the apparatus body or a lid which can be opened and closed with respect to the body, a first switch for generating a signal for turning on and off the power means Means, a second switch means provided on at least one of the lid and the main body for generating a signal for turning on and off the power supply means, and connected to the first and second switch means, And a decoder for transmitting a predetermined power-on / off signal determined according to a combination of the signals from the first and second switch means to the power supply means based on the input of the electronic equipment.