JPH05303452A - Computer with handwriting input function - Google Patents

Abstract

PURPOSE:To input power supply when a pen is taken out from a pen storing part and to set up a resume mode when the pen is stored. CONSTITUTION:This system is constituted of a pen input means 3, a pen storage detecting means 4 for detecting whether a pen is stored in the pen storing part or not, a RAM 2 for storing input data, a ROM 1 for storing a program for controlling the system, and a central processing unit(CPU) 5 for executing control in accordance with a program code stored in the ROM 1. When an input pen is stored in the pen storing part, the execution address of the program is saved and a power supply switch is turned off. When the pen is taken out from the pen storing part, the program is restarted from the saved address, so that a power supply switch 6 is not required and the consumption of a battery is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer with a handwriting input which is input with power when a pen is removed from a pen storage unit and which is set to resume mode when the pen is attached.

[0002]

2. Description of the Related Art In the field of personal computers, a notebook type, which is small, lightweight and convenient to carry, has become the mainstream in place of the conventional desktop type. Various devices such as and digitizer were developed,
It has been put to practical use. This notebook type personal computer has a power switch, and by turning on / off the power switch, power supply / power is supplied.
We are stopping.

[0003]

In such a computer with handwriting input, the power switch is turned on / off every time the device is driven or stopped, and the personal computer can be used even when it is in use. Instead, wasteful power may be consumed by forgetting to turn off the power by doing another work.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and in a computer with a handwriting input having a pen capable of handwriting input, a pen storage portion for storing the pen and the pen storage portion. A pen storage detection unit that detects whether or not is stored, and when the pen storage detection unit detects mounting of the pen, all the states necessary for the program being executed are held and the power is turned off, Provided is a computer with handwriting input, which comprises a resume function means for supplying power to the device when the removal of the pen is detected by the pen storage detection unit and continuously executing program processing.

[0005]

With this configuration, power is supplied when the pen is removed, and when the pen is attached, all the states necessary for the program being executed are retained even if the power is turned off. Then, when the power is turned on again, the resume function means for continuously executing the program can be realized. As a result, the power supply to the computer can be automatically controlled, power consumption can be saved, and the power switch can be turned on or off by moving the pen in and out.
FF can be done with a single operation.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a computer with handwriting input showing an embodiment of the present invention, FIG. 2 is a flowchart for explaining normal processing of a computer with handwriting input showing one embodiment of the present invention, and FIG. It is a flowchart explaining the interruption process of the computer with handwriting input showing one embodiment of the invention, and FIG. 4 is a schematic block diagram of the computer with handwriting input showing one embodiment of the present invention.

In FIG. 1, the computer with handwriting input of the present invention has a pen input means 3 for inputting data, a pen storage detecting means 4 for detecting whether or not a pen is stored in a pen storage portion, A RAM 2 in which input data is stored, a ROM 1 in which a program for controlling this device is stored, a central processing unit 5 that is controlled according to the program code stored in this ROM 1, and a display unit. The position detection means 7 is integrated with 8 to detect the input coordinate position, and a power switch 6.

The computer with handwriting input shown in FIG. 4 is a schematic representation of the block diagram of FIG. 1. It has an input pen 10 for inputting data, and a pen storage section 30 for storing the pen. , A micro switch 20 for detecting whether or not the input pen 10 is housed in the pen housing section 30, a power management circuit 40 for performing power supply processing according to an ON or OFF operation of the micro switch 20, and a central processing unit. 5, a main logic circuit 50 including a ROM 1, a RAM 2, etc., a display section 8 for displaying data, and a pen input means 3.

The operation will be described with reference to FIGS. 1 to 4. It is determined whether or not the input pen 10 is stored by the pen storage detection means 4 which is the micro switch 20 in the pen storage unit 30 shown in FIG. 4 (step 1), and the input pen 10 is stored in the pen storage unit 30. When stored, the micro switch 20 is turned off (step 2). Then, the program counter, stack pointer, register, etc. at the time when the program stored in the ROM 1 is temporarily stopped are saved in the RAM 2 (step 3). The power switch 6 shown in FIG. 1 is turned off (step 4), and the resume mode (step 5) is entered.

After that, when the input pen 10 is taken out from the pen storage unit 30 to operate the apparatus, the micro switch 20 is turned on (step 6), and the power switch 6 shown in FIG. 1 is turned on (step 7). An interrupt occurs (step 8). When an interrupt is notified to the central processing unit 50, the process jumps to the process shown in FIG. 3 which is the address corresponding to the interrupt. In FIG. 3, the information in which the program counter, the stack pointer, the register, etc. saved in the RAM 2 at the time when the above program is temporarily stopped is recovered (step 9), and the program is read from the address of the recovered program counter. Will restart.

Even when the input pen 10 is stored in the pen storage portion 30, when the power switch 6 is turned on, the power is input and the input operation is performed.

[0012]

As described above, according to the present invention, when the input pen is stored in the pen storage portion, the program execution address is saved and the power switch is turned off. When the input pen is taken out of the pen housing, the program restarts from the saved address, so that the power switch is unnecessary and the battery consumption is small.

[Brief description of drawings]

FIG. 1 is a block diagram of a computer with handwriting input showing an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a normal process of a computer with handwriting input according to an embodiment of the present invention.

FIG. 3 is a flowchart illustrating an interrupt process of a computer with handwriting input according to an embodiment of the present invention.

FIG. 4 is a schematic block diagram of a computer with handwriting input showing an embodiment of the present invention.

[Explanation of symbols]

 1 ROM 2 RAM 3 Pen Input Means 4 Pen Storage Detecting Means 5 Central Processing Unit 6 Power Switch 7 Position Detecting Means 8 Display

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location 7165-5B G06F 1/00 331 C

Claims (1)

[Claims] 1. A computer with handwriting input having a pen capable of handwriting input, a pen storage unit for storing the pen, a pen storage detection unit for detecting whether the pen is stored, and the pen storage detection unit. When the attachment of the pen is detected by the pen, all the states necessary for the program being executed are held and the power is turned off, and when the removal of the pen is detected by the pen storage detector, the device is powered on. And a resume function means for continuously executing the program processing by inputting.