JPH10143292A - Portable information equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability by preventing a battery from being wasted because of forgetting the turn-off of the power source of a portable information equipment. SOLUTION: Main power source is supplied to a liquid crystal display part 1, a touch panel 2, a memory part 3, a microcomputer control part 4 and a pen recognizing part 7 by the same battery 5. The microcomputer control part 4 has a means for turning on or turning off the power supply to the liquid crystal part 1, the touch panel 2 and the memory part 3. When a pen is put out or put in, the pen recognizing part 7 sends an interrupt signal to the microcomputer control part 4. The microcomputer control part turns on or turns off the power supply by judging whether the pen is put out or put in from the interruption signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a portable information device provided with a pen input function and a place for accommodating a pen.

[0002]

2. Description of the Related Art In recent years, the field of portable information devices has been used in fields such as personal information management and public relations activities such as sales persons due to their portability. Many portable information devices perform input using a pen. The method of turning on and off the power is mainly performed by operating a power switch. As a conventional technique, there is a method of automatically turning off the power if there is no input for a predetermined time as shown in Japanese Patent Application Laid-Open No. 2-141815.

[0003]

However, in the prior art, it is necessary to take the pen in and out in addition to the operation of turning on the power, which is troublesome twice. Further, there is a disadvantage that the power is turned off if there is no input for a certain period of time even during use. An object of the present invention is to ensure that the power is not turned off during use and to simplify the operation procedure.

[0004]

In the present invention, attention is paid to the practical use of operating the pen during use and storing the pen when not in use, and automatically when the pen is taken out of the storage section. A function to turn on the power and automatically turn off the power after a short time when the pen is put in the storage compartment prevents the power from being turned off reliably during use and prevents unnecessary power consumption. be able to. When the operation is stopped because the power is turned off by operating the pen, it is possible to habit to store the pen, so that forgetting to turn off the power is reduced and power saving can be achieved. In addition, the operability can be improved by integrating a series of interlocking operations of turning off the power and putting the pen into the storage unit, or turning on the power and taking out the pen from the storage unit.

[0005] A power switch and conventional techniques can be used in combination.

As described above, the object can be achieved by adding a function of turning on / off a power switch by inserting / removing a pen to a portable information terminal device capable of storing a pen.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of the present invention. The portable information device includes a liquid crystal display unit 1 having a touch panel 2, a memory unit 3, a microcomputer control unit 4, a battery 5, a main switch unit 6, a pen recognition unit 7 for recognizing a pen storage state, and a pen 8. . Main power is supplied from the same battery 5 to the liquid crystal display unit 1, the touch panel 2, the memory unit 3, the microcomputer control unit 4, and the pen recognition unit 7. The microcomputer control unit 4 has means for turning on and off the power supply of the liquid crystal unit 1, the touch panel 2, and the memory unit 3.

The control method of the present invention will be described with reference to FIG. This control method is realized by a power supply control program in the microcomputer control unit 4. Hereinafter, the procedure of the control method will be described.

When a pen is inserted into the pen storage unit of the portable information device or when the pen is taken out of the pen storage unit of the portable information device, the pen recognition unit 7 interrupts the microcomputer control unit 4. (Step 10) At the point when the microcomputer control unit 4 is interrupted by the pen recognition unit 7, it is checked whether the pen has been taken out of the pen storage unit or inserted into the pen storage unit. If it was entered (step 13), if it was issued (step 1
1) Check whether power is supplied to the liquid crystal display unit 1, the touch panel 2, and the memory unit 3. If power has not been supplied (step 12), power is supplied to the liquid crystal display unit 1, the touch panel 2, and the memory unit 3 and the interrupt is terminated.
If the power is supplied in (step 11), the interrupt is terminated. (Step 13) Check whether power is supplied to the liquid crystal display unit 1, the touch panel 2, and the memory unit 3. If power is supplied,
(Step 14) Set a timer value for automatic power-off. (Step 15) Check whether there is a timer remaining time. If there is no remaining time (step 18), if there is remaining time (step 16), the timer value is decremented. After the subtraction, it is checked (step 17) that the portable information device is operated. If there is an operation, go to (Step 14), otherwise (Step 15) (Step 18). Power supply to the liquid crystal display unit 1, touch panel 2, and memory unit 3 is stopped.

[0010]

The portable information device having a pen input recognizes that the pen has been put in and out of the pen storage section, and turns on and off the power of the portable information device. No need to use a lot of power. Also, just put the pen out of the compartment to turn on the power, just put the pen in the compartment to turn off the power,
After turning the pen into or out of the compartment, turn off the power with the power switch.
Or, the trouble of a series of interlocking operations of entering can be saved. Since the power cannot be turned off unless the pen is inserted into the storage section, errors such as misplacement of the pen after use are reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart showing a control method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Liquid crystal display part, 2 ... Touch panel, 3 ... Memory part, 4 ... Microcomputer control part, 5 ... Battery, 6 ... Main switch part, 7 ... Pen recognition part, 8 ... Pen.

Claims (1)

[Claims] 1. A power supply is supplied by a battery or a battery, and in a liquid crystal display unit having a touch panel, a microcomputer control unit, a memory unit, and a portable information device having a pen storage unit, there is a situation where power is turned on or off. A portable information device characterized in that the turning on and off of the power is determined by taking a pen in and out.