JPH07225576A - Electronic equipment and method of controlling data display - Google Patents

Abstract

PURPOSE:To provide an electronic equipment and a data display control method capable of deciding whether or not the display data are re-displayed for the display data to be picture displayed without performing special specifying operation for the display data to be re-displayed by a user and storing the display data to be re-displayed. CONSTITUTION:A picture display control part 4 judges whether or not the picture display time of the display data picture displayed on a display part 1 or an interruption time of picture display control is a fixed time or above, and thus, the display start position or the picture displaying data of the display data which is judged as a fixed time or above are made the re-displaying data to be stored in a re-display data storage part 6. Then, when the display data are re-displayed, the display data judged to be re-displayed is re-displayed based on the re-displaying data in the re-display data storage part 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device capable of redisplaying data and a data display control method.

[0002]

2. Description of the Related Art In a conventional electronic device, for example, a document preparation apparatus can display only about 1000 characters on the display surface, and therefore large document data such as B4 size paper cannot be displayed on the display surface at one time. . For this reason, there is a screen scroll function for controlling the screen display so that the portion to be displayed by moving the document data vertically and horizontally is brought into the display screen.
This screen scroll control method prepares and controls a dedicated key such as a scroll key, and moves the cursor vertically and horizontally by the cursor movement keys to scroll the screen after reaching the edge of the display screen.
Further, there is a screen display control method in which an icon for screen scrolling displayed on the screen is controlled by pointing with a mouse.

Further, as a method of controlling the display of the document data displayed on the screen other than the screen scroll, the page, line, and column number of the document data are designated, and the beginning of the document data and the end of the document data are included. Function to call page, line, column designation / start of sentence / end of sentence to specify page display,
There is a page forward / backward function for displaying the previous page and the subsequent page of the currently displayed document data.

In addition to the control method described above, a method of re-displaying the previously displayed document data on the screen is disclosed in Japanese Patent Laid-Open No. Hei 3
There is a document creation device described in Japanese Patent No. 282880.
This document creation apparatus calculates a cursor position set at a designated position of document data displayed on the screen by a user's registration operation, stores the calculated cursor position information, and further performs a redisplay operation by the user. Discloses contents for redisplaying document data designated based on the stored cursor position information on the screen.

[0005]

However, when the document data is re-displayed by the conventional electronic equipment as described above, the following problems occur. First, when redisplaying by scrolling the screen, search for the desired document data while scrolling the document data and display the document data you want to redisplay, so the document data of the part you want to redisplay and all documents It was necessary for the user to grasp the relative positional relationship of the data in advance.

Further, when the document data is re-displayed by designating the page, line and digit of the document data, it is necessary to input page line digit position information of the document data. It was necessary to remember the page line column position of the desired document data.

[0007] Next, in the case of the method disclosed in Japanese Patent Laid-Open No. 3-228880, it is determined whether or not the user redisplays the document data, and the document data desired to be redisplayed is displayed. The cursor position set at the specified position of must be stored. Therefore, it is necessary for the user to instruct the storage of the document data by himself / herself, and the storage instruction must be issued for each of the document data to be displayed again, which complicates the operation.

The present invention solves the above-mentioned problems, and when the user decides whether or not to re-display the display data consisting of text-format document data and image-format image data, the user side Without any special designation
The display data to be redisplayed can be determined, and the display data to be redisplayed can be determined without requiring the user to perform a storage instruction when storing the display data to be redisplayed. It is an object of the present invention to provide an electronic device and a data display control method capable of storing data.

[0009]

To achieve the above object, an electronic apparatus of the present invention comprises a data storage means for storing data, a data display means for displaying the data stored in the data storage means, and Data position calculation means for calculating a storage position in the data storage means of data to be displayed on the data display means, and display data is taken out from the data storage means on the basis of the storage position calculated by the data position calculation means, Data display control means for displaying on the data display means, data display range change instructing means for instructing to change the display range of the display data displayed on the data display means, and display data of the display data by the data display range changing instructing means. Based on the change of the display range, a redisplay judgment for judging whether or not the display data is redisplayed on the data display means. Means, a redisplay instruction means for instructing redisplay of the partial data, and the display data determined to be redisplayed by the redisplay determination means in response to the redisplay instruction by the redisplay instruction means. Data re-display means for displaying on the data display means.

Further, in the electronic device according to claim 1,
The redisplay determination means displays the display data based on the display time from when the display range of the display data is not changed by the data display range change instruction means until the display range is changed again. It is characterized by determining whether or not to re-display.

Further, in the electronic device according to claim 1,
By the data display range change instruction means, it is detected whether or not the display position of the cursor displayed on the data display means is out of the display range, and after the change of the display range of the display data disappears, The display time calculation means for calculating the display time until the change of the display range occurs,
The redisplay determination means determines whether to redisplay the display data on the data display means based on the display time calculated by the display time calculation means.

Further, in the electronic device according to claim 1,
Display time calculating means for detecting the presence or absence of a change in the data storage position calculated by the data position calculating means, and calculating a display time of the display data after the change in the storage position disappears until the change occurs again. The redisplay determining means may determine whether to redisplay the display data on the data display means based on the display time calculated by the display time calculating means.

Further, in the electronic device according to claim 1,
The start time of the change instruction of the display range of the display data by the data display range change instruction means and the end time of the change instruction of the display range of the display data are detected, and the interruption time of the change instruction of the data display range change instruction means is detected. The re-display determination means determines whether to re-display the display data on the data display means again based on the interruption time calculated by the interruption time calculation means. Is characterized by.

Further, in the electronic device according to any one of claims 1, 2, 3, 4, and 5, redisplay data storage for storing the storage position of the display data determined to be redisplayed by the redisplay determination means. The data redisplay means acquires the storage location of the display data from the redisplay data storage means in response to a redisplay instruction from the redisplay instruction means, and the acquired storage location Based on the above, the display data is retrieved from the data storage means and displayed on the data display means.

The electronic device according to any one of claims 1, 2, 3, 4, and 5, further comprises redisplay data storage means for storing the display data determined to be redisplayed by the redisplay determination means. The data redisplay unit retrieves the display data from the redisplay data storage unit and displays the display data on the data display unit in response to a redisplay instruction from the redisplay instruction unit.

The data display control method according to claim 8 is the data display control method for displaying the data stored in the data storage unit on the data display unit, in response to a display range change instruction. Based on the change in the display range of the display data displayed by, it is determined whether or not to re-display the display data on the data display unit, the display data determined to be re-displayed in response to the re-display instruction, The data is displayed on the data display unit.

Further, in the data display control method according to the present invention, when it is judged whether or not to redisplay the display data, the display range of the display data is not changed and then the display range is changed again. It is characterized in that whether or not the display data is re-displayed on the data display unit is determined based on the display time until the generation.

Further, the data display control method according to the present invention detects whether or not the display position of the cursor displayed on the data display section is out of the display range in response to an instruction to change the display range. Then, the display time from when the change of the display range of the display data disappears until the change of the display range occurs again is calculated, and based on the calculated display time, the display data is re-displayed on the data display unit. It is characterized by determining whether or not.

The data display control method according to claim 8 detects whether or not the storage position of the display data has changed,
The display time of the display data from when the change of the storage position disappears until the change occurs again is calculated, and based on the calculated display time, it is determined whether or not to redisplay the display data on the data display means. It is characterized by doing.

Further, according to the data display control method of the present invention, in response to a display range change instruction, a display range change instruction start time of the display data and a display range change instruction end time of the display data are set. Is detected, and the interruption time of the instruction to change the display range of the display data is calculated, and based on the calculated interruption time, it is determined whether or not to redisplay the display data on the data display unit again. To do.

Further, in the data display control method according to any one of claims 8, 9, 10, and 11, the storage position of the display data which is determined to be redisplayed is stored in a redisplay data storage unit, and the redisplay data storage unit stores the redisplay data. In response to an instruction, the storage position of the display data is acquired from the redisplay data storage unit, and based on the acquired storage position, the display data is acquired from the data storage unit and displayed on the data display unit. It is characterized by doing.

Further, in the data display control method according to any one of claims 8, 9, 10 and 11, the display data determined to be redisplayed is stored in the redisplay data storage section, and a redisplay instruction is issued. Then, the display data is acquired from the redisplay data storage unit and displayed on the data display unit.

The data display control method according to the fifteenth aspect detects whether or not there is a change in the display range of the display data in response to an instruction to change the display range, and based on the change in the display range, the display is changed. It is characterized in that it is determined whether or not to redisplay the data, and the display data determined to be redisplayed is redisplayed according to a redisplay instruction.

[0024]

According to the above construction, the display time of the display data being displayed on the screen is obtained, and based on the obtained display time, it is judged whether or not this display data is to be displayed again. Alternatively, the interruption time of the screen display control for the display data to be displayed on the screen is obtained, and based on this interruption time, it is judged whether or not to re-display.

As a result of this determination, the display start position of the display data determined to be redisplayed or the display data is stored in the redisplay data storage means. In this way, when selecting and storing display data that is likely to be displayed again by the user with respect to the display data being displayed on the screen, it is possible to store the display data to be displayed again without user operation. To do.

Further, when redisplaying the data, as described above, the display data to be redisplayed is acquired and displayed based on the display start position or the display data stored in the redisplay data storage means. You can redisplay the data.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the first embodiment will be described with reference to the block diagram shown in FIG. In the first embodiment, a case where document data is displayed on the display unit 1 will be described. The display unit 1 has, for example, 2
It is a liquid crystal display that displays document data of 0 rows × 40 digits and image data of 200 × 400 dots.

Here, 20 lines × 40 displayed on the display unit 1
The document data for one digit and the image data for 200 × 400 dots are defined as display data. The instruction unit 2 is for inputting information necessary for creating a document, and is, for example, a keyboard or a mouse. When the instruction unit 2 is a keyboard, on the instruction unit 2, in addition to general keys such as a “character” key and a “numerical value” key, a “direction instruction” key for instructing the position of the cursor and moving up, down, left and right, Keys for performing screen display control such as a “screen scroll” key for instructing screen scroll and a “redisplay” key for instructing redisplay are provided.

The instruction identification unit 3 identifies which key on the instruction unit 2 is pressed, and whether the information input from the instruction unit 2 is character data, numerical data, or screen display. It is judged whether the information is for control of.

When the instruction identifying unit 3 determines that the "character" key or the "numerical value" key on the instruction unit 2 is input, it outputs the corresponding code data to a code data buffer (not shown). On the other hand, when it is determined that the key for screen control has been input, the control data for screen display is output to the screen display control unit 4.

The screen display control unit 4 controls the display unit 1 such as screen scrolling. When displaying the display data on the display unit 1, first, the screen display control unit 4 sets a position (hereinafter, referred to as a display start position) at which the display of the display data is started and a display range of the document data on the display unit 1. Based on the number of displayed lines (20 lines) and the number of displayed digits (40 digits), the display data is retrieved from the storage unit 5 described later and displayed on the display unit 1.

Further, when the screen is scrolled by the instruction information of the "screen scroll" key of the instruction section 2, the display start position is changed by this screen scroll. Therefore, the display start position of the display data already displayed and the instruction Based on the type of information, the display start position of the display data to be newly displayed on the display unit 1 is calculated, the display data is retrieved from the storage unit 5, and displayed to scroll the screen. Or, when the cursor position exceeds the display range of the display screen by the direction information of the "direction instruction" key, the display start position of the new display data is calculated as in the case of the "screen scroll" key. , Scroll the display data on the screen.

On the other hand, when the cursor is moved within the display screen by the instruction of the "direction instruction" key, the cursor position is obtained and the cursor position is calculated based on the kind of the instruction information to move the cursor. To move.

Further, the screen display control unit 4 obtains a period (hereinafter referred to as screen display time) during which the display start position of the display data displayed on the screen is not changed, and displays the display data based on the screen display time. Determine whether to redisplay. When it is determined that the display data is the data to be redisplayed, the display start position information of the display data and the screen display time information are stored in the redisplay data storage unit 6 described later.

The storage unit 5 stores text format document data and image format image data. The redisplay data storage unit 6 stores the display start position information and screen display time information of the display data determined to be redisplayed by the screen display control unit 4.

The relationship between the document data and the display data will be described with reference to FIG. The display data displayed on the display unit 1 is a part of the document data 20 and has the relationship shown in FIG.

Then, the display start position of the display data is defined as the storage position of the storage unit 5 obtained by the relative position between the document data 20 and the display data.
Each page, line, and number of digits from the first digit may be treated as the display start position information, or may be simply defined as the storage position of the display data in the storage unit 5 and this storage position may be used as the display start position information. .

The previous display data 25 in FIG. 5 is the display data before the screen is scrolled by moving the cursor,
The new display data 26 is display data newly displayed on the display unit 1 after scrolling the screen.

The operation of this embodiment will be described below with reference to the flow chart shown in FIG. The flowchart of FIG. 2 shows an operation of determining whether or not to redisplay the display data, and storing the display start position information and the screen display time information of the display data determined to be redisplayed.

A case will be described in which the instruction section 2 is used as a keyboard and the cursor displayed on the screen of the display section 1 is moved downward in the display screen by operating the "direction instruction" key to scroll the display data.

First, in order to calculate the screen display time of the display data currently displayed on the screen of the display unit 1, the count value of the counter (not shown) is initialized, and the count of the counter is counted according to the clock of the timer (not shown). Start (step A1).

The instruction identification unit 3 monitors the operation on the instruction unit 2 (step A2), and identifies which key on the instruction unit 2 has been pressed (step A3). In this example,
The fact that the "direction instruction" key on the instruction unit 2 has been pressed is identified, it is determined that the instruction is to move the cursor, and the instruction information is output to the screen display control unit 4. On the other hand, the instruction unit 2
When the "character" key (not shown) is pressed, it is determined that the character string data is input, and the input character string data is output to the character input control unit (not shown).

The screen display control unit 4 controls the screen display according to the instruction information regarding the screen display control received from the instruction identifying unit 3. When the direction identification information is input from the instruction identification unit 3, the screen display control unit 4 controls the movement of the cursor displayed on the display unit 1 according to the direction instruction information. When the screen display control information received from the instruction identifying unit 3 is instruction information other than cursor movement,
The screen display control unit 4 performs processing other than cursor movement (step A10).

First, the screen display control unit 4 gives a "direction instruction".
The cursor position (hereinafter referred to as the previous cursor position 23) before the cursor movement is started by pressing the key is stored in, for example, a cursor position buffer (not shown). This cursor position information is based on the position at the upper left corner of the display screen 10 of the display unit 1 as shown in FIG.
(1 digit), the cursor position is determined by the number of lines and the number of digits from the reference. For example, when the cursor is located at the 8th digit of the 15th line, the cursor position information is (15, 8), and this cursor position information is stored in the cursor position buffer.

Next, the screen display control unit 4 determines a new cursor position (hereinafter, the new cursor position 24 based on the position information of the front cursor position 23) according to the type of the "direction instruction" key.
Call). Then, based on the new cursor position information obtained by this calculation, it is determined whether or not the new cursor position 24 is within the display range of the display screen 10 (step A4). New cursor position is on display screen 1
If it is within the range of 0, the cursor is moved to the new cursor position and displayed on the screen (step A11).

On the other hand, when it is determined that the new cursor position has reached outside the range of the display screen 10, the screen display control unit 4 shifts from the cursor movement process to the screen scroll process (step A5). When the screen display control unit 4 determines that the cursor has moved out of the range of the display screen 10, the screen display control unit 4 first acquires information on the display start position of the previous display data 25 (hereinafter referred to as the previous display start position 21). Previous display data 2 here
The information on the previous display start position 21 of No. 5 is stored in the display start position monitoring buffer (not shown) while the previous display data 25 is displayed. The display start position information is
Each page, line of the document data 20 stored in the storage unit 5,
The position information is determined corresponding to the digit position.

Subsequently, the screen display control unit 4 gives a "direction instruction".
According to the instruction information from the key, a new display start position (hereinafter, new display start position 22
Call). Then, based on the information of the new display start position 22, the new display data 26 is fetched from the storage unit 5, and the fetched new display data 26 is displayed on the display unit 1.

Screen scrolling is performed by performing the above processing. When the screen scroll processing is performed as described above, the previous display data 25 is changed to the new display data 26, and when the screen display control unit 4 determines that the display range of the display data displayed on the display unit 1 is changed, the previous display data is displayed. The count value of the screen display time of the data 25 (hereinafter referred to as the previous screen display time) is acquired from a counter not shown (step A).
6).

Next, the screen display control section 4 judges whether or not the screen display time of the acquired previous display data 25 is a certain time or more (step A7). For example, setting is made so that display data displayed on the screen for 10 seconds or longer is determined to be display data to be displayed again, and whether the screen display time is a fixed time or longer is determined according to this set value.

When it is determined in step A7 that the screen display time of the previous display data 25 is not longer than the predetermined time, the previous display start position 21 and the screen display time of the previous display data 25 are not stored, and the step is performed. The process is transferred to A1.

On the other hand, in step A7, the previous display data 2
If it is determined that the screen display time of 5 is a certain time or more, then the screen display control unit 4 displays the screen display of the display data previously acquired and stored in the redisplay data storage unit 6. The time is compared with the screen display time of the previous display data 25 (step A8).

If it is determined in step A8 that the screen display time already stored is longer than the screen display time of the previous display data 25, the previous display data 2
The previous display start position 21 and the screen display time of 5 are not stored in the redisplay data storage unit 6, and the process proceeds to step A1.

On the other hand, when the screen display time of the previous display data 25 is longer than the previously obtained screen display time, the previous display start position 21 and the screen display time of this previous display data 25 are stored in the redisplay data storage unit 6. , The content of data to be stored is updated (step A9).

When the previous display start position 21 is stored in the redisplay data storage unit 6 in the above embodiment, it is possible to store a plurality of pieces of this display start position information. For example, the display data may be stored in order based on the screen display time length, or the most recently obtained display may be stored instead of the screen display time length. The data display start position and the screen display time can be stored in order.

Further, the display start position information obtained by the above processing is stored together with the document data by using a storage medium such as a floppy disk (FD).
When it is desired to redisplay the document data even after the document data is recalled or the device is reset, the display data to be redisplayed can be displayed according to the user's redisplay instruction.

In the method described above, step S4
When it is determined that the new cursor position 24 has reached the display range of the display screen 10, the screen display time is acquired in step A6. However, the timing of acquiring the screen display time is not limited to the above-described method, and for example, the screen display control unit 4 monitors whether or not the display position of the display data has changed, and the screen data is changed by scrolling the screen to change the display start position. When is changed, it may be determined that the display range of the display data displayed on the display unit 1 has changed, and the screen display time may be acquired.

Next, the operation of re-displaying the display data based on the display start position information stored in the re-display data storage section 6 by the above-mentioned operation will be described with reference to the flowchart of FIG.

First, it is determined whether or not a key input is made by the instruction unit 2 (step B1). Step B
When it is determined that the key input has not been made by 1, the processing of step B1 is repeated until the key input is made.

On the other hand, if it is determined in step B1 that a key input has been made, then the instruction identifying unit 3
Determines whether the key pressed on the indicator 2 is the "redisplay" key (step B2).

If it is determined in step B2 that the key is not the "redisplay" key, the process proceeds to step B6 to perform another process. On the other hand, "redisplay" by step B2
When it is determined that the key is the key, the process then proceeds to the screen display control unit 4 and the display start position information of the display data to be redisplayed is acquired from the redisplay data storage unit 6 (step B
3).

Next, the screen display control unit 4 fetches the display data corresponding to the display start position from the storage unit 5 based on the display start position information acquired from the redisplay data storage unit 6 (step B4).

Subsequently, the display data taken out in step B4 is displayed again on the display unit 1 (step B5). By the above operation, the display data can be redisplayed based on the display start position information.

When acquiring the display start position information of the display data to be redisplayed in step B4, if a plurality of display start position information is stored in the redisplay data storage unit 6, the screen display time is used as a reference. The order of display data to be redisplayed may be determined, or the display data stored in the redisplay data storage unit 6 may be used as a reference for redisplaying the display data stored most recently.

Further, based on the display start position information, the display data may be redisplayed in order from the display data having the display start position close to the beginning of the document data among the display data to be redisplayed. It is also possible to display the positional information on the display unit 1 so that the user can select the display data to be displayed again, and the display data can be displayed again according to the user's selection.

In the above description, the case where the screen is scrolled by moving the cursor has been described as an example.
Display section 1 by specifying the line and column, calling the beginning and end of a sentence, etc.
Even when the screen display control is performed for the display data of, the display data determined to be redisplayed is determined based on the screen display time of the display data as in the case of screen scrolling. It is possible to store the display start position and the screen display time.

Next, a second embodiment will be described. In the above-described first embodiment, when displaying the text data in the range corresponding to the display data of the document data or the display data instead of storing the display start position and the screen display time of the display data to be displayed again, The screen display data is stored in the redisplay data storage unit 6 as the redisplay data together with the screen display time.

When redisplaying the display data in this way,
The redisplay data can be redisplayed by taking out the redisplay data from the storage unit 6 and displaying the retrieved redisplay data.

Next, as a third embodiment, in addition to the method of determining the display data to be displayed again based on the screen display time described above, the interruption time such as screen scrolling is counted by a counter (not shown), A method of determining display data to be displayed again based on the interruption time obtained by this counting will be described.

The third embodiment will be described below with reference to the flowchart of FIG. Here, for example, as shown in FIG. 7, the interruption time of the screen scroll is defined as the elapsed time from when the "screen scroll" key is pressed, and after the interruption, the "screen scroll" key is pressed again.

First, when the user presses a "screen scroll" key (not shown) on the instruction section 2, the "screen scroll" key in the key code buffer (not shown) of the instruction identification section 3 is pressed in response to this key operation. The key code is sequentially stored.

Then, the screen display control unit 4 monitors this key code buffer and determines whether or not a key code is stored in the key code buffer (step C1).

When it is determined in step C1 that the key code is not stored, the screen display control unit 4 repeats the determination process in step C1 until the key code is input to the key code buffer.

On the other hand, if it is determined that the key code is stored in the key code buffer, then the screen display control unit 4 takes out the key code from the key code buffer (step C2).

Next, the screen display control unit 4 determines that the key code retrieved from the key code buffer is "screen scroll".
It is determined whether it is the key code of the key or a key code other than the "screen scroll" key (step C3).

When it is determined in step C3 that the key code is other than the "screen scroll" key, the screen display control unit 4
Performs processing other than screen scrolling (step C1)
0). On the other hand, when it is determined that the key code is the "screen scroll" key, the screen display control unit 4 performs a screen scroll process according to the key code (step C4).

After the screen is scrolled in step C4 as described above, if the user then continuously presses the "screen scroll" key, the instruction identifying section 3 is operated according to the key operation by the user. Since the key code of the "screen scroll" key is continuously input to the key code buffer of, the "screen scroll" is displayed in the key code buffer.
The key code of the key is stored continuously.

Therefore, the processing from step C1 to step C4 is repeated to continuously scroll the screen. On the other hand, after scrolling the screen in step C4, it is determined that the key code of the "screen scroll" key is not continuously stored in the key code buffer, and it is determined in step C1 that there is no key code in the key code buffer. Or the key other than the “screen scroll” key (for example, the “character” key) is pressed, the screen scroll instruction is temporarily interrupted, and the key code other than the “screen scroll” key is determined in step C3. If the judgment is made, the screen display control unit 4 initializes the counter and starts counting the interruption time of the screen scroll.

Next, after the screen scroll is interrupted, it is judged whether or not the "screen scroll" key is pressed again to restart the screen scroll (step C5). As a method of determining whether or not the screen scroll is resumed, for example, an interruption flag indicating interruption of the screen scroll is set. That is, when the screen is scrolled in step C4 and the next key code is processed, it is determined in step C1 that there is no key code in the key code buffer, or in step C3, "screen scroll" is performed. When it is determined that the key code is a key code other than the key, the interruption flag may be set to "1" to indicate that the screen scroll is interrupted.

When it is determined in step C5 that the screen scroll is restarted, the interruption time of the screen scroll is acquired from the counter (step C).
6). Next, the screen display control unit 4 determines whether the acquired interruption time of the screen scroll is a certain time or more (step C7).

If it is determined in step C7 that the screen scroll interruption time is not longer than the predetermined time,
The display start position information of the display data and the interruption time are not stored in the redisplay data storage unit 6, and the process proceeds to step C1.

On the other hand, when it is determined that the screen scroll interruption time is longer than the predetermined time, it is determined whether the acquired interruption time is longer than the previously acquired interruption time (step C8). .

When it is determined in step C8 that the previously acquired interruption time is long, the display start position information of the display data and the interruption time are not stored in the redisplay data storage unit 6, and the process is performed in step C1. Transfer.

On the other hand, when it is determined that the interruption time acquired this time is longer than the previous time, the display start position information and the interruption time of this display data are stored in the re-display data storage unit 6 and the data content is updated. (Step C9).

Further, when the display start position information and the interruption time are stored in the redisplay data storage section 6, a plurality of pieces may be stored as in the first embodiment. In this way, it is possible to make a determination to redisplay the display data, and store the display start position information and the interruption time of the display data determined to be redisplayed. Then, when the display data is re-displayed, the display data can be re-displayed based on the display start position information according to the operation shown in the flowchart of FIG. 3 as in the first embodiment.

In the above-described embodiment, the case of re-displaying the document data has been described. However, in addition to the document data, image data such as a map can be re-displayed similarly to the document data. . In the case of document data, the display start position information of the display data is shown in pages, lines, and digits, but in the case of the image data 30 as shown in FIG. 8, the display start position of the display data 32 is shown. 31 is handled using the position information indicated by the XY coordinates on the bitmap.

That is, based on the screen display time of the display data 32, it is judged whether or not to display again, and the display data 3
When it is determined to redisplay 2, the screen display control unit 4
Display start position 3 of display data 32 in image data 30
1 or screen display data of the display data 30 is stored in the redisplay data storage unit 6 as redisplay data.

When the display data 32 is re-displayed, if the screen display start position 31 is stored in the re-display data storage unit 6, based on the screen display start position 31,
The display data 32 can be displayed again by acquiring and displaying the image data.

Alternatively, when the screen display data is stored, the display data 32 can be displayed again by acquiring the screen display data and displaying it on the display unit 1. Further, even when the mixed data of the document data and the image data is used as the display data and the screen is displayed on the display unit 1 at the same time, the display data can be displayed again.

That is, the display start position corresponding to each of the document data and the image data of the display data determined to be re-displayed is stored in the re-display data storage unit 6, or the screen display data of the display data is re-displayed. Display data storage unit 6
Stored in. And when redisplaying the display data,
The display data can be redisplayed by acquiring and displaying the display data based on the display start position of each of the document data and the image data or the screen display data.

In addition to the above-described embodiment, even in the case of display data displayed on the display unit 1 in a multi-window, the display data can be redisplayed.
For example, among multiple windows, a window that is frequently input by the user or subject to screen display control such as screen scrolling is detected, and the display data of this window is targeted for redisplay. Make a decision.

Further, the judgment of re-display on the display data may be made by counting the screen display time of the display data and judging whether to re-display based on this screen display time, as in the above-mentioned embodiment. However, it is also possible to count the interruption time of the screen scroll for the display data and judge the re-display based on this interruption time.

When the display data determined to be redisplayed as a result of such determination is stored, the display start position of the display data displayed in the window, the display range, and the display position of the window on the display screen. Is stored in the redisplay data storage unit 6.

When redisplaying the display data, the display data is acquired and redisplayed based on the display start position and display range of the display data stored in the redisplay data storage unit 6 and the display position of the window. , Display data can be displayed again.

When the display data is redisplayed, the display range of the window (window size) or the display position of the display data may be changed and redisplayed. In this case, the display range of the window and the display position of the display data are preset on the display screen of the display unit 1.
Then, at the time of re-display, the display data is acquired from the storage unit 5 based on the display start position of the re-display data storage unit 6 and the preset display range of the window, and then on the set display screen. Redisplay the display data at the display position of. As a result, the display data can be redisplayed at an arbitrary position in a window having an arbitrary size.

Note that when a plurality of windows are open, the display data of which window is to be judged for re-display is not limited to the above case, for example, the display of a plurality of windows displayed on the screen. Detect the range,
The display data of the window with the widest display range may be targeted. Or, detect the display time of each window,
The display data of the window having the longest display time may be targeted, or the order in which the display is started on the display screen may be managed as information, and the display data of the window displayed first may be targeted. Alternatively, the display data of the window that started to be displayed last may be targeted.

In addition to the above-described embodiment, as a method of determining whether or not to redisplay the display data, for example, for each line of the display data displayed on the screen, the cursor is moved to that line and displayed. Each time the cursor is displayed on the line, the frequency information indicating the frequency is added, and the frequency of the cursor display on the line is incremented by one. This frequency information is stored in, for example, a buffer corresponding to each row of display data.

Then, when the frequency of cursor display exceeds a preset numerical value, for example, it may be determined to redisplay the display data of the display range including the line.

As the display range of the display data, for example, the display data for 20 lines which can be displayed on the display unit 1 is redisplayed, centering on the line where the frequency of cursor display is equal to or more than a preset numerical value. Display data to be set.
Then, by storing the display start position of this display data or the screen display data, the display data to be displayed again can be stored.

The range to which the frequency information of the cursor display is added is not limited to the display data, but the frequency information of the cursor display is displayed for all lines of the document data or the image data stored in the storage unit 5. It can be added and managed. Also in this case, similarly to the case of the display data, the frequency information of the cursor display of each line is stored in the buffer, and the frequency of the cursor display of the line is incremented by one each time the cursor is displayed on the line. Then, based on the cursor display frequency information, for example, in the document data or the image data, it may be determined to redisplay a range including a line having a value greater than or equal to a set numerical value.

As described above, according to the embodiment described above, it is determined whether or not the display data is redisplayed based on the screen display time of the display data such as the document data and the image data displayed on the screen or the interruption time of the screen display control for the display data. You can judge.

Further, the display start position of the display data determined to be redisplayed or the screen display data can be stored, and it is not necessary for the user to give a special storage instruction to the display data.

[0102]

According to the present invention, it is determined whether or not the display data displayed on the screen is display data to be redisplayed, and the display data determined to be redisplayed is stored. Therefore, it is not necessary for the user to perform a special memory instruction.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an electronic device according to a first embodiment.

FIG. 2 is a flowchart showing an operation of storing display start position information of display data and screen display time information in the first embodiment.

FIG. 3 is a flowchart showing an operation of redisplaying display data in the embodiment of the present invention.

FIG. 4 is a flowchart showing an operation of storing display start position information of display data (in the case of document data) and screen display time information in the third embodiment.

FIG. 5 is a diagram showing an example of display data displayed on the screen according to the embodiment of the present invention.

FIG. 6 is a diagram showing an example of a screen display of display data according to the embodiment of the present invention.

FIG. 7 is a diagram showing a timing of a process of calculating a screen scroll interruption time in the third embodiment.

FIG. 8 is a diagram showing an example of display data (in the case of image data) displayed on the screen according to the embodiment of the present invention.

[Explanation of symbols]

1 ... Display unit, 2 ... Instruction unit, 3 ... Instruction identification unit, 4 ... Screen display control unit, 5 ... Storage unit, 6 ... Redisplay data storage unit.

Claims (15)

[Claims] 1. A data storage means for storing data, a data display means for displaying the data stored in the data storage means, and a data storage area in the data storage means for the data to be displayed on the data display means. Data storage area detection means, data display control means for extracting display data from the data storage means based on the data storage area detected by the data storage area detection means, and displaying the display data on the data display means; Data display range change instructing means for instructing to change the display range of the display data displayed by the display means, and this display data is displayed in the data display mode based on the change in the display range of the display data by the data display range change instructing means. Re-display judgment means for judging whether or not to display the means, and an instruction for displaying the display data. And a data redisplay unit for displaying, on the data display unit, the display data determined to be displayed by the redisplay determination unit in response to a display instruction from the redisplay instruction unit. An electronic device characterized by the above. 2. The redisplay determination means is configured to display the display data based on a display time from when the display range of the display data is not changed by the data display range change instruction means until when the display range is changed again. The electronic device according to claim 1, wherein it is determined whether or not is displayed on the data display means. 3. The data display range change instruction means detects whether or not the display position of the cursor displayed on the data display means has reached outside the display range, and the change of the display range of the display data is detected. A display time calculation means for calculating a display time until the display range changes again after disappearance is provided, and the re-display determination means, based on the display time calculated by the display time calculation means, displays the display data. The electronic device according to claim 1, wherein it is determined whether or not to display the data on the data display unit. 4. The display time of the display data from the time when the change in the data storage area disappears to the time when the change occurs again is detected by detecting the change in the data storage area detected by the data storage area detecting means. A display time calculating means for calculating, wherein the re-display determining means determines whether to display the display data on the data display means based on the display time calculated by the display time calculating means. The electronic device according to claim 1. 5. A start time of an instruction to change the display range of the display data by the data display range change instruction means and an end time of an instruction to change the display range of the display data are detected.
The data display range change instructing means comprises an interruption time calculating means for calculating an interruption time of the change instruction, and the redisplay judging means calculates the display data based on the interruption time calculated by the interruption time calculating means. The electronic device according to claim 1, wherein it is determined whether or not to display on the display means. 6. Redisplay data storage means for storing the data storage area of the display data determined to be displayed by the redisplay determination means, wherein the data redisplay means is displayed by the redisplay instruction means. In response to the instruction, the data storage area of the display data is acquired from the redisplay data storage means, and the display data is retrieved from the data storage means based on the acquired data storage area, and the data display means is acquired. The electronic device according to claim 1, 2, 3, 4, or 5. 7. A redisplay data storage unit for storing the display data determined to be displayed by the redisplay determination unit, wherein the data redisplay unit is responsive to a display instruction by the redisplay instruction unit. 6. The electronic device according to claim 1, wherein the display data is retrieved from the redisplay data storage unit and displayed on the data display unit. 8. A data display control method for displaying data stored in a data storage unit on a data display unit, wherein a display range of display data displayed by the data display unit is changed in response to a display range change instruction. On the basis of the above, it is determined whether or not to redisplay the display data on the data display unit, and the display data determined to be redisplayed is displayed on the data display unit according to a redisplay instruction. Data display control method. 9. When determining whether or not to redisplay the display data, the display data is based on a display time from when the display range of the display data disappears until the display range changes again. 9. The data display control method according to claim 8, further comprising: determining whether or not to redisplay on the data display unit. 10. A change in the display range of the display data is detected by detecting whether or not the display position of the cursor displayed on the data display unit has reached outside the display range according to a display range change instruction. The display time from the disappearance until the change of the display range occurs again is calculated, and based on the calculated display time, it is determined whether or not to redisplay the display data on the data display unit. 8. The data display control method described in 8. 11. The presence / absence of a change in the data storage area of the display data is detected, and the display time of the display data from the disappearance of the change in the data storage area until the change occurs again is calculated. 9. The data display control method according to claim 8, further comprising determining whether to redisplay the display data on the data display unit based on a display time. 12. A display range change instruction start time of the display data and a display range change instruction end time of the display data are detected in response to a display range change instruction, and the display data display range of the display data is changed. 9. The data display control method according to claim 8, wherein an interruption time of the change instruction is calculated, and whether or not to redisplay the display data on the data display unit is determined based on the calculated interruption time. 13. The data storage area of the display data determined to be re-displayed is stored in a re-display data storage unit, and the data of the display data is stored in the re-display data storage unit in response to a re-display instruction. 12. A storage area is acquired, the display data is acquired from the data storage unit based on the acquired data storage area, and the display data is displayed on the data display unit. Or the data display control method described. 14. The display data determined to be redisplayed is stored in the redisplay data storage unit, the display data is acquired from the redisplay data storage unit in response to a redisplay instruction, and the data display is performed. The data display control method according to any one of claims 8, 9, 10, and 11, characterized in that the data is displayed in a section. 15. The presence or absence of a change in the display range of the display data is detected in response to an instruction to change the display range of the display data, and based on the change in the display range, it is determined whether or not to redisplay the display data. Then, the display data determined to be redisplayed is redisplayed in response to a redisplay instruction, a data display control method.