JPH0495146A - Information processor - Google Patents

Abstract

PURPOSE:To prevent loss of data due to the reduction of the voltage of an incorporated battery by transferring data of characters or the like stored in a storage device to store and preserve it in the case of the reduction of the supply voltage to a certain value or lower. CONSTITUTION:A supply voltage detector is provided which detects and monitors the voltage of a power line 4 through which electricity is supplied from a battery 3 to each device. If the battery voltage is reduced by consumption of the battery 3 and the voltage on the power line is reduced to a certain value or lower, the supply voltage detector 5 sends a signal to a controller 7, and the controller 7 transfers and stores data in a storage device 10 to an external storage device 9 by this signal. Thus, data is stored and preserved in the external storage device 9 and does not disappear even when the battery voltage is continuiously reduced thereafter.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information processing apparatus, and more particularly, to an information processing apparatus, such as a Japanese word processor, which has functions such as inputting and editing documents.

[Conventional technology]

In recent years, there have been Japanese language word processors that are light and compact, convenient to carry, book-type or notebook-type, and can be used with an external power supply or built-in battery.

[Problem to be solved by the invention]

Book-type and notebook-type Japanese word processors can be powered by batteries so that they can be used in places where there is no commercial power source, such as outside the home. However, in recent years, Japanese word processors have become more power consuming due to the increase and diversification of functions and connected devices, and the built-in battery can usually be used for only a few hours, causing the built-in battery to run out and the battery voltage to drop. If so, the battery must be charged or replaced. If the user does not notice the battery consumption and continues to use the Japanese word processor, the battery life will run out, the battery voltage will rapidly drop, and data such as characters stored in the storage device will disappear. The purpose of the present invention is to transfer and store data when the battery voltage decreases due to battery consumption to an external storage device that can memorize and save data, such as documents created and stored using a Japanese word processor, so that data such as documents created and stored on a Japanese word processor can be completely restored due to a decrease in battery voltage. The purpose is to prevent it from disappearing.

[Means to solve the problem]

To achieve this objective, the present invention detects the voltage of the power line that supplies electricity from the battery to each device.

A power supply voltage detection device is provided for monitoring, and the data in the storage device is transferred to the external storage device by a signal from the power supply voltage detection device to the control device that controls each device.

I decided to give it a memory function.

[Effect]

When the battery voltage decreases due to battery consumption and the power line voltage drops below a certain value, the power supply voltage detection device sends a signal to the control device, and the control device uses this signal to detect the data stored in the storage device. transfer to external storage device,
By storing data, even if the battery voltage continues to drop and the data in the storage device disappears, the data will be memorized and saved in the external storage device and created using a Japanese word processor.

Saved data will not be lost.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram of a document editing device such as a Japanese word processor. 8 is an input device such as a keyboard or tablet for inputting desired characters or operation modes, and character codes or operation command codes are input to the control device 7. input. The control device 7 transfers codes such as characters inputted from the input device 8 and document data such as editing results to the storage device 10 for temporary storage, and also sends image data to the display device 6 for display, floppy disk drive, etc. Control external storage devices such as memory cards. The storage device 10 stores system programs in addition to codes such as characters transferred from the control device 7 and document data of editing results. A power line 4 is connected to either the external power input terminal 1 or the built-in battery 3 by a power switch 2, and supplies power to each device. The power supply voltage detection device 5 detects and monitors the power supply voltage of the power supply line 4, and outputs a signal A11. Signal B12 is connected to the control device. Figure 2 shows how the voltage of the built-in battery 3 changes depending on the operating time of the Japanese word processor when the Japanese word processor is driven by the built-in battery 3, and the horizontal axis is the operating time of the Japanese word processor; The vertical axis is the voltage of the built-in battery 3. The built-in battery 3 is connected to a power line 4 through a power switch 2, and the voltage of the power line 4 is approximately equal to the voltage of the built-in battery 3. FIG. 2 shows a case where a new or charged rechargeable NiCd battery is used as the built-in battery 3, and the voltage of the built-in battery 3 is Vl before the Japanese word processor is operated. When a Japanese word processor is operated and consumes a certain amount of current, T1
During this period, the voltage of the built-in battery 3 remains approximately at vl.

The time from 0 to T1 is about 3 hours. Operating time is T
1, the voltage of the built-in battery 3 gradually decreases from vl, and when the operating time reaches T4, the voltage of the built-in battery 3 decreases to Va.
decreases to The time from Ti to T4 is around 5 minutes. When the operating time passes T4, the voltage of the built-in battery 3 rapidly decreases, dividing the power supply voltage v5 necessary for the storage device 10 to perform a storage operation, and the voltage of the built-in battery 3 becomes v6 at T5. The time from T4 to T5 is about 1 minute or less.

In this embodiment, when the voltage of the power supply line 4 becomes lower than v2 in FIG. 2, the power supply voltage detection device 5 outputs the signal All to the control device 7. When the control device 7 receives this signal, 6, a warning is issued to the user by displaying that a voltage drop has occurred in the built-in battery 3 and that charging is required. The control device 7 also checks the status of the external storage device 9 such as a floppy disk drive or memory card, and if there is a failure in transferring and storing data in the storage device 10 to the external storage device 9, the control device 7 checks the status of the external storage device 9 such as a floppy disk drive or a memory card, and if there is a problem in transferring and storing data in the storage device 10 to the external storage device 9, the display device 6 indicates that the obstacle should be removed and warns the user.

When the user continues to operate the Japanese word processor without charging the built-in battery 3 and the voltage of the power supply line 4 further decreases to below ■3, the power supply voltage detection device 5 sends a signal to the control device 7. Output B12. When the control device 7 receives this signal, it transfers the data stored in the storage device 10 to the external storage device 9 and stores it therein. FIG. 3 shows the configuration of the power supply voltage detection device 5, which is connected to the signal A11.
° Signal B12, resistors 13 to 18, comparator 19.
It consists of 20. The power supply voltage detection level v3 of the power supply voltage detection device 5 is determined by the signal B12 such that the time spent on the processing performed by the control device 7 is shorter than T4 and T3, and the power spent on the processing performed by the control device 7 remains in the built-in battery 3. is set to the power line voltage.

〔Effect of the invention〕

As described above, according to the present invention, in an information processing device such as a Japanese word processor that is powered by a built-in battery, if the user uses the information processing device for a long time without noticing that the built-in battery is depleted, the built-in battery This has the effect of preventing data in the storage device from disappearing due to voltage drop and data being created or edited by the information processing device from being lost.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the main body of the document editing device, FIG. 2 is a discharge characteristic diagram of a built-in battery, and FIG. 3 is a configuration diagram of a power supply voltage detection device. 1... External power input terminal, 2... Power switch, 3...
- Built-in battery, 4... Power line, 5... Power supply voltage detection device, 6... Display device, 7... Control device, 8... Input device, 9... External storage device, 10... Memory device, 11
...Signal A, 12...Signal B, 13-18...Resistor, 19.20...Comparator. Agent Patent Attorney Katsuma Ogawa (,- \,

Claims (1)

[Claims] 1. An input device for inputting data, a display device for displaying the input data or the editing result of this data, and temporarily storing the data input from the input device,
A storage device that stores system programs, an external storage device that stores input and editing results, a control device that controls each of the devices, a power source that supplies power to each device, and a voltage source that controls the voltage of the power source. In an information processing device configured with a power supply voltage detection device, when the voltage of the power supply drops below a certain value, data such as characters stored in the storage device is transferred to an external storage device and stored; An information processing device characterized by storage.