JPH04367895A - Page turnover control device in display device - Google Patents

Abstract

PURPOSE:To call up a distant page in a short duration by providing a high speed page turnover key besides an ordinary page turnover key and by showing the top of each page only for a high speed page turnover operation. CONSTITUTION:In a display memory, a title and the top portion of each page and the data of the following portion of the page are separately stored. When a distant page from a current display screen 14 is to be called up, a high speed next page key 19a or a high speed previous page key 19b are repeatedly pressed. Then, only the title portions of each page are continuously displayed. And when the desired title is displayed, operations of the high speed key are stopped and the rest of the page is displayed after a prescribed time duration.

Description

[Detailed description of the invention]

0001

FIELD OF INDUSTRIAL APPLICATION The present invention relates to a display device such as a CRT display device incorporated in a man-machine interface device, and particularly relates to a page turning process for turning a screen displayed on a display screen to the next or previous page. The present invention relates to a page turn control device in a display device that controls a display device.

0002

2. Description of the Related Art For example, a man-machine interface device is connected to a host computer as a terminal device. As shown in FIG. 4, this man-machine interface device includes, for example, a CRT display 1, an arithmetic processing device 2 having a built-in microcomputer, and a keyboard 3. Inside the arithmetic processing unit 2 is a CRT display 1.
A display memory for storing display data to be displayed on the display screen 4 is provided.

[0003] This display memory stores display data for a plurality of pages input from a host computer. Further, character keys 5, numeric keys 6, and various function keys 7 are arranged on the keyboard 3. Further, the keyboard 3 includes a next page key 8a as a page turning key, which changes one page's worth of display data currently displayed on the display screen 4 to the next page's worth of display data, and a next page key 8a as a page turning key. A previous page key 8a is provided for changing the display data of one page currently displayed to the display data of one page of the previous page.

In such a man-machine interface device, when a certain function key 7 is pressed,
The first of the display data of each page stored in the display memory
Display data for one page corresponding to the page is read out and displayed on the display screen 4. When the operator presses the next page key 8a, display data for one page corresponding to the page next to the currently displayed page is read from the display memory and displayed on the display screen 4. On the other hand, when the previous page key 8b is pressed, display data for one page corresponding to the page preceding the currently displayed page is read from the display memory and displayed on the display screen 4. In this way, it is possible to call up the data of any page on the display screen 4 by operating the pair of page turn keys consisting of the next page key 8a and the previous page key 8a.

However, a certain amount of display processing time is required until the display data for one page of the next or previous page is displayed on the display screen of the CRT display 1 by operating the next page key 8a or the previous page key 8a. becomes. The next page turn key operation will not be accepted until the display process is completed. Therefore, when displaying data on a page far away from the currently displayed page, it takes a long time until the data on the final target page is displayed, which greatly reduces operability.

In order to eliminate such inconveniences, each page of data in the display memory described above is stored as unit display data divided into n equal parts, and the display screen 4 is also divided into n equal parts. As shown in the flowchart of Figure 5, when displaying one page of display data, each unit data numbered from 1st to nth is displayed in order from top to bottom. To go. As a result, one page's worth of data is finally displayed to fill the entire display screen. Then, each time the display processing for the unit display data is completed, it is determined whether the above-mentioned next page key 8a or previous page key 8a has been operated. If a key is operated, display processing for the next unit display data of the corresponding page is stopped at that point. Then, display processing for the first unit display data of the display data of the next page or the previous page in the display memory is started.

[0007] In this way, by dividing one page of display data into n unit display data and performing display processing on each unit display data in turn, unnecessary pages are It is possible to start the display process of the display data of the next page only by displaying the unit display data of . Therefore, the time required to display data on a page far away from the currently displayed page can be reduced.

[0008]

[Problems to be Solved by the Invention] However, even in a page feed control device that displays the display data of each page on the display screen and turns the page according to the procedure shown in FIG. 5, the following still needs to be improved. There was an issue.

That is, the next page key 8a or the previous page key 8b
When pages are turned continuously using , it is possible to display data for one target page in a short time as described above. However, when displaying the data of adjacent pages that do not turn pages continuously, if you press the next page key 8a or the previous page key 8a, each unit from the 1st to the nth of one page on the specified side will be displayed. Each display process for data is executed n times in order. In addition, the next page key 8 is pressed every time each display process is completed.
A process for checking whether or not the key a or the previous page key 8a has been operated is added.

As a result, there is a problem in that the overall display processing time required to represent all the data for one page becomes longer than before the data is divided into unit display data. It is thought that the frequency of execution of normal page turning operations is higher than the frequency of execution of continuous page turning operations, so when evaluating the display device as a whole, it cannot necessarily be said that the operability has improved.

[0011] The present invention has been made in view of the above circumstances, and in addition to the normal page turning key, a high-speed page turning key is provided, and in the case of high-speed page turning, only the top portion of each page is displayed. This not only makes it possible to recall data from a page far away in a short time, but also allows the display processing of the corresponding page to be executed at a sufficiently fast speed even when the normal page turn key is operated, improving the operability of the entire display device. It is an object of the present invention to provide a page turn control device in a display device that can be significantly improved.

0012

[Means for Solving the Problems] In order to solve the above problems, according to the page turn control device of the present invention, display data for a plurality of pages stored in a display memory can be executed by key operation of a page turn key on a keyboard. In a display device that reads one page at a time and displays it sequentially on the display screen of the display device,

[0013] In response to the key operations of the normal page turn key, the high speed page turn key, and the high speed page turn key provided on the keyboard, the first part of the display data of the next page to be displayed stored in the display memory is read out. means for displaying the first part of the page on the display screen, and displaying the remainder of the same page following the currently displayed first part when the high-speed page-turning key is not operated again within a specified period of time from the key operation time of the high-speed page-turning key. Remaining data display means for reading data from the display memory and displaying it at the lower position of the top portion of the display screen, and displaying the next page to be displayed stored in the display memory in response to a key operation of a normal page turn key. The apparatus includes full-page data display means for sequentially reading out and displaying the leading part of the data and the remaining display data following the leading part.

[0014]

[Operation] In a display device incorporating the page turn control device constructed as described above, a high speed page turn key is provided on the keyboard in addition to the normal page turn key. The display memory stores display data for a plurality of pages for each page. Further, the display data of each page is stored divided into a leading part such as a title and a remaining data part following this leading part.

[0015] When the high-speed page turn key is operated with the data of an arbitrary page displayed on the display screen of the display unit, the data of the page adjacent to the designated side of the currently displayed page in the display memory is displayed. Display processing is performed on data at the beginning of the display data. Then, when the first part is displayed, if the user observes this first part and finds that it is the target page, he or she presses the high-speed page turn key again, and the data of the first part of the next page is displayed.

[0016] When the displayed top portion is recognized as the target page, the high-speed page turn key is not operated. Then, after a predetermined period of time has elapsed, the remaining display data of the same page in the display memory is displayed below the currently displayed top portion. Therefore, data for one page of the target page is displayed.

On the other hand, when the data for one arbitrary page is displayed on the display screen of the display unit, if the normal page turn key is operated, the page will move to the designated side of the currently displayed page in the display memory. Display processing is performed on the data at the beginning of the display data on adjacent pages, and then display processing is performed on the remaining display data on the same page. That is, in response to a normal page turn key operation, one page's worth of data is displayed with only two display processes.

[0018]

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

FIG. 1 is an external view showing the entire display device incorporating the page feed control device of the embodiment. This display device is used, for example, as a man-machine interface device connected to a host computer.

As shown in the figure, this man-machine interface device is composed of, for example, a CRT display 11, an arithmetic processing unit 12 having a built-in microcomputer, and a keyboard 13. A display memory for storing display data to be displayed on the display screen 14 of the CRT display 11 is provided within the arithmetic processing unit 12 .

Display data for a plurality of pages inputted from the host computer is stored in this display memory, with each page being distinguished. Furthermore, the display data for each page is stored separately into several lines of leading data including the title and the like, and remaining data following this leading part. In addition, the processing unit 12 is currently in a high-speed page feed mode (F=
1) or a normal page feed mode (F=0). Note that when the power is turned on, the normal page feed mode (F=0) is automatically set.

Further, character keys 15, number keys 16, and various function keys 17 are arranged on the keyboard 13. Furthermore, as shown in FIG. 2, the keyboard 13 is provided with a pair of normal page turn keys consisting of a normal next page key 18a and a normal previous page key 18b. The keyboard 13 also includes a high speed next page key 19a and a high speed previous page key 1.
A pair of high-speed page turn keys consisting of 9b is provided.

When a specific function key 17 instructing display in such a man-machine interface device is pressed, the arithmetic processing unit 12 displays each page stored in the display memory according to the flowchart of FIG. The program is configured to execute display processing on data.

When the flowchart starts, at P (program step) 1, display processing is executed for the first part of the display data of the first page stored in the display memory, and the CRT display 11 at the upper position of the display screen 14. Then, in P2, the flag in the flag memory is checked and if it is cleared to 0, it is the normal page turn mode, so the process immediately proceeds to P3, and display processing is performed on the remaining data of the same page in the display memory. That is, the corresponding remaining data is read out and displayed below the beginning of the currently displayed title, etc.

[0025] Thus, one page of data is displayed on the display screen 14.
If the high-speed or normal page turn keys 18a to 19b are not operated immediately at P4, operation data such as characteristic values inputted from the outside will be displayed on the corresponding displayed page (P5). After that, the state shifts to a stopped state and returns to P4 using either the high speed or normal page turn key 18a.
When keys 18a to 19b are operated, the process advances to P6, and the page to be read next in the display memory is determined to be the page specified by the page turn keys 18a to 19b operated at P4. Then, the page turn keys 18a to 1 which were operated earlier in P7
9b sets a flag for fast or normal page-turning mode.

Then, the process returns to P1, and the data at the beginning of the display data of the previously determined page in the display memory is newly displayed on the display screen 14. Next, check the flag that was updated first. If it remains 0, the normal page feed mode was selected in the previous P4, so the process advances to P3 and the remaining data of the corresponding page is displayed.

On the other hand, the flag updated earlier in P2 is 1.
If it is set, the high-speed page feed mode was selected in the previous P4, and the process advances to P8. When the high-speed next page key 19a or the high-speed page forwarding key 19b is operated within a specified time from the previous key operation time of P4, the process advances to P6, the page to be displayed next in the display memory is determined, and the flag is updated. Then, the top portion of the page determined in P1 is displayed.

If the high-speed next page key 19a or the high-speed previous page key 19b is not operated at P9 even after the specified time elapses, the process advances to P3, reads out the remaining data of the corresponding page, and displays the data below the top of the page. to be displayed. Then, the process waits for the next key operation at P4.

With the page feed control device for the display device configured as described above, when displaying data on a page far away from the page currently displayed on the display screen 14, the high speed next page key 19a or the high speed previous page button is pressed. When the page key 19b is pressed, the beginning of the next or previous page is displayed. If the user presses the high-speed next page key 19a or the high-speed previous page key 19b again within the specified time, the top portion of the next or previous page will be displayed. Therefore, if the high-speed next page key 19a or the high-speed previous page key 19b is repeatedly pressed, for example, the first part displaying the title name will be displayed in order. When the desired title name is displayed, if you stop pressing the high-speed page turn key at that point, the remaining data of the corresponding page will be displayed at the bottom after the specified time has elapsed, and you will get an image for one page. .

In addition, when displaying data on a page adjacent to the page currently displayed on the display screen 14, when the normal next page key 18a or the normal previous page key 18a is operated,
The first part and the remaining data are displayed consecutively without any time interval.

[0031] In this way, when pages are turned continuously, only the first part of each page is displayed, so the display processing time is greatly reduced compared to when displaying all data for one page. Therefore, it becomes possible to quickly search for data on a target page.

Furthermore, in normal page turning operations, 1
The page worth of data is only divided into two pieces of display data: the leading part and the remaining data. Therefore, the display process is only executed twice consecutively. Moreover, Figure 3
As shown in FIG. 2, no judgment processing is involved between the display processing of the leading portion and the display processing of the remaining data portion. Therefore,
Compared to the conventional method shown in FIG. 5 in which display processing is executed n times and judgment processing is always required between display processings, the display processing time for one page of data is significantly reduced. Therefore, even when compared with the case where one page's worth of display data is not divided at all, there is no significant disadvantage in terms of display processing time.

[0033]

As explained above, according to the page feed control device of the present invention, in addition to the normal page feed key, a high speed page feed key is provided, and in the case of high speed page feed, only the top portion of each page is moved. In the case of normal page turning, the leading part and the remaining data part are displayed successively. Therefore, not only can data from a far away page be called up in a short time, but the display process for the corresponding page is executed at a sufficiently fast speed even when the normal page turn key is operated, greatly improving the operability of the entire display device. can be improved.

[Brief explanation of the drawing]

FIG. 1 is an external view of a display device incorporating a page feed control device according to an embodiment of the present invention;

[Fig. 2] A cutaway diagram showing the main parts of the keyboard of the same embodiment device;

[Fig. 3] Flowchart showing the operation of the same embodiment device,

[Figure 4
] An external view showing a general display device,

FIG. 5 is a flowchart showing a conventional page turning control method.

[Explanation of symbols]

11... CRT display, 12... Arithmetic processing unit, 13... Keyboard, 14... Display screen, 17... Function keys,
18a... Normal next page key, 18b... Normal previous page key, 19a
...High speed next page key, 19b...High speed previous page key.

Claims (1)

[Claims] [Claim 1] Display data for a plurality of pages stored in a display memory is read out one page at a time and sequentially displayed on a display screen of a display device each time a key operation of a page turn key on a keyboard is executed. In the display device, a normal page turn key and a high speed page turn key provided on the keyboard, and display data of the next page to be displayed stored in the display memory in response to key operations of the high speed page turn key are provided. a first part display means for reading out the first part and displaying it on the display screen; and a first part currently being displayed when the high-speed page turn key is not operated again until a predetermined time elapses from the key operation time of the high-speed page turn key; remaining data display means for reading the remaining display data of the same page following from the display memory and displaying it at a lower position of the leading portion on the display screen; 1. A page turn control device for a display device, comprising a leading part of display data of a next page to be displayed stored in a display device, and all-page data display means for sequentially reading out and displaying remaining display data following the leading part.