JPH04192060A - Information processor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an information processing device that performs data processing using a keyboard display.

(Prior art) Personal computer (PC)/word processor (
Data input to information processing devices such as WP)/workstations (WS) and other mainframes is performed using a keyboard display. These devices are highly reliable, and increasingly important or confidential data and private data are also input into these devices.

Data that has been input has been protected by measures such as passwords or encryption, but currently it is not protected because raw data is input at the time of input. Specifically, input data from the keyboard is displayed (echoed back) as is on the display device for confirmation. For this reason, when inputting confidential data, methods such as erasing the echo back of the input data according to the processing program have been adopted. However, this method does not allow the user to confirm the input data, and is therefore undesirable for inputting a large amount of data without error. Further, when referring to data already stored in the information processing device, it is necessary to display the data on the display device regardless of its confidentiality level. In places such as offices where people with various rights to view data coexist, even when those with legitimate rights are correctly viewing the data, someone without the right to view the data may look into the display device. Even in this case, this cannot be prevented.

(Problem to be solved by the invention) For this reason, conventionally, when manipulating highly confidential data, data must be input/referenced using a special terminal that cannot be accessed by other people, or during a special time when no one else is around. It is necessary to input/refer to the data, and if someone else approaches when operating highly confidential data, there is waste such as having to completely stop the operation, resulting in problems such as deterioration of work efficiency. was there.

This invention was made in view of the above circumstances, and allows a data input person to input data independently of a processing program.

An object of the present invention is to provide an information processing device capable of erasing/redisplaying the contents of an arbitrary area of a display device.

[Structure of the Invention] (Means for Solving the Problems) The information processing device of the present invention includes a video RAM having at least the same capacity as the display device screen, in which display contents are stored;
A first key that instructs to instantly erase or redisplay the contents of at least a partial area of the display screen, a second key that sets the area to be erased on the display screen, and their position data are stored. and a specific RAM separate from the video RAM in which the display contents of a specific area on the display device are temporarily saved when a specific area on the display device is designated by the second key input. , by confirming the first key input, the display in that area is instantly erased, and by recognizing the pressing of this key again, the content is transferred from the specific RAM to the video RAM, and the original screen is restored again. The present invention is characterized by comprising a control device.

(Function) The present invention has a keyboard as an input device, and a display device such as a CRT, liquid crystal display (LCD), or plasma display (FDP) as an output device,
The above keyboard includes a first key that instructs to instantly erase/redisplay part or all of the area on the display screen, and a second key that specifies the area on the display that should be erased. A key is assigned, a specific area on the display device is specified in advance using this second key, and when the first key is pressed, the display of that area is instantly erased, and this key is pressed again. and restore the original screen again.

This makes it possible to erase/redisplay data that the data operator has determined to be highly confidential from the display screen as necessary, independently of the data processing program.

(Example) Hereinafter, an example of the present invention will be described in detail using the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, reference numeral 1 denotes a keyboard, through which data is input or commands are input to the information processing device. Additionally, a shutter key 3 and area setting key 4 added according to the present invention are newly assigned.

Reference numeral 2 is a display device that displays data from the information processing device. Specifically, a CRT display, a liquid crystal display (LCD), a plasma display (FDP), etc. are used as the display monitor. Reference numeral 3 denotes a shutter key, which controls erasure/redisplay of the display erasure area. Reference numeral 4 is an area designation key, which specifies the range of the display erasing area. Reference numeral 5 denotes an area register, in which the position/range of the display erasing area is held as coordinate data in accordance with the settings made by the area specifying key 4 described above. Reference numeral 6 indicates a display erase area, which is a display screen area determined by the area setting register 5. Reference numeral 7 is a display data storage area that temporarily stores the contents of the 2-display erase area 6. Reference numeral 8 is a data processing program, which processes data based on instructions from an operator.

A video RAM 9 stores display contents, and has a capacity equal to or greater than that of the display screen. 10 is a display control device, which controls the interface between the information processing device and the display device, and specifically controls the video R.
Performs AM9 read/write control and display timing signal generation processing.

Hereinafter, the operation of the embodiment of the present invention will be explained in detail. Normally, data input from the keyboard 1 is processed inside the information processing device, written to the video RAM 9, and displayed on the display device screen 2, ie, the so-called display monitor, under the control of the display control device 10. First, the data entry person specifies the area 6 in which display of highly confidential data is to be erased using the area designation key 4. There is no need to specifically assign a new key to the area designation key 4, and it may be a normal cursor key, for example. Further, in the embodiment of the present invention, the area is specified using a key, but any pointing device such as a mouse or a light bar may be used for this purpose.

Information indicating the above-mentioned area is set and stored in the area register 5. Under normal conditions, confidential data can be entered in the same way as normal data and is echoed back on the display. Therefore, the validity of input data can be easily confirmed, and there are fewer errors. Furthermore, even when referring to highly confidential data already stored in the information processing device, the data can be checked directly on the display device.

Here, if someone who does not have the right to refer to this data comes and presses the shutter key 3, the original data display will be erased from the area 6 where confidential data is displayed (
Pre-registered patterns may be displayed) to make reference impossible. Furthermore, the data displayed here is saved in the display data storage area 7. Since this operation is performed independently of the data processing program, the data processing program 8 does not need to be changed in any way. When there is no longer any person who does not have the right to refer to the data, by pressing the shutter key 3 again, the secret data starts to be displayed again, and the process can be resumed without interrupting the program.

[Effects of the Invention] As explained above, according to the present invention, the following effects can be obtained.

(1) Normal data,
and input and reference of highly confidential data.

(2) Costs can be reduced without considering time of day, location, etc. when inputting and referencing highly confidential data.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention. 1...Keyboard, 2...Display device screen, 3...
Shutter key, 4... Area setting key, 5... Area setting register, 6... Display erase area, 7... Display data storage area, 8... Data processing program, 9... Video RAM , 10...Display control device. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] a video RAM having a capacity at least as large as the display screen in which display content is stored; a first key for instructing instantaneously erasing or redisplaying the content of at least a portion of the display screen; a second key for setting the area to be erased, and an area setting register in which the position data is stored; When there is an input, the display contents of the specified area are temporarily saved in the memory, and by confirming the first input of the first key, the display of the specified area is instantly erased, and the display contents of the specified area are saved again. 1
and a display control device that transfers the contents from the memory to the video RAM and restores the original screen again by recognizing the input of the key.