JP2002140321A - Text display device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make speedily viewable the text of a desired part of the whole part. SOLUTION: A specific character is retrieved forward or backward from text data every time a specific indication is received (steps 25 to 27) and the part of a text to be displayed in the text data is successively changed according to the positions of successively retrieved characters in the text data (step 28). Here, the text part is changed so that characters other than the 1st specific character present behind the position of a retrieved character are displayed in the beginning of a display part (step 28). Further, the specific character is retrieved on the basis of the position of a cursor on the text displayed in the display area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a text display device and method for displaying text in a predetermined display area based on given text data.

[0002]

2. Description of the Related Art FIG. 6 is a block diagram showing a configuration of a conventional text display device. In FIG. 1, reference numeral 1 denotes a decode IC for decoding data including text data and separating and outputting the text data; 2, a memory for storing the text data; and 3, a copy of the text data stored in the memory 2. An edit buffer for storing, a display buffer for storing a part of the text data in the edit buffer, a display unit for displaying a text based on the data in the display buffer, and a memory and an edit buffer. 3 is a system controller that controls the system controller 3. The system controller 6 has a scroll timer for performing a scroll display by incrementing the start address of a portion of the text data in the edit buffer 3 to be transferred to the display buffer 4 at a predetermined timing.

FIG. 7 is a flowchart showing a text display process in this device. When the text display process is started, as shown in the figure, the system controller 6 first determines in step 71 whether or not text data exists in the given data. If it is determined that no text data exists, the process proceeds to step 79,
It is determined whether there is a text display request.
If there is a text display request, step 81
In step 82, data for displaying that there is no text to be displayed is prepared. If there is no request, data for normal display is prepared in step 82. Then, in step 83, the prepared data is transferred to the display buffer 4, and the process ends.

When it is determined in step 71 that there is text data that can be displayed, in step 72, the text data extracted by the decode IC 1 from the given data is stored in the memory 2, and in step 73, the text display Determine whether there is a request. If there is no request, prepare data for normal display in step 80,
The data is transferred to the display buffer 4 in step 83, and the process ends.

If it is determined in step 73 that a text display request has been made, in step 74, the text data in the memory 2 is copied to the editing buffer 3. Then, in a step 75, it is determined whether or not there is a request for the normal display. If there is a request, data for normal display is prepared in step 80, and the data is transferred to the display buffer 4 in step 83, and the process is terminated.

If it is determined in step 75 that there is no request for normal display, steps 76 to 78
, Scroll display of text data in the edit buffer 3 is performed. That is, first, in step 76, it is determined whether or not the scroll timer has counted up. If the scroll timer has counted up, in step 77, the start address of the text data in the edit buffer 3 to be transferred to the display buffer 4 is incremented and the scroll timer is set. If it is determined in step 76 that the scroll timer has not counted up, the flow directly proceeds to step 78. In step 78,
The text data after the current start address in the edit buffer 3 is transferred to the display buffer 4 and the process returns to step 75. By repeating steps 76 to 78 in this manner, scroll display is performed on the text data in the editing buffer 3.

[0007]

However, according to the prior art, scrolling in scroll display is always performed at a constant speed depending on the text display device. Therefore, the user has to wait for scrolling to proceed to a part to be viewed in the latter half of all displayed text. Also, it takes a long time to see the entire text.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a text display device or method capable of promptly viewing a desired portion or a whole range of text in view of the problems of the prior art.

[0009]

To achieve the above object, a text display device according to a first aspect of the present invention is a text display device that displays text in a predetermined display area based on given text data. Instruction receiving means for receiving a predetermined instruction; search means for sequentially searching for a predetermined character in the text data in the forward or reverse direction each time the instruction is received; and text data of the character sequentially searched for Means for sequentially changing a portion of the text to be displayed in the text data in accordance with a middle position.

Here, any text data may be used as long as it is text data composed of characters and symbols having a fixed character code. For example, text data displayed on a display such as a personal computer, text data recorded on a CD (compact disc) or MD (mini disc), text data obtained by receiving a text multiplex broadcast, or MIDI data May be text data. In addition, the predetermined character to be searched may be any character having a predetermined character code, and specifically, may be a code or symbol other than a normal character such as a space or a colon. . Further, the search for the predetermined character may be performed every other character or every other character. That is, instead of searching one by one, search may be skipped one by one or a plurality of times. Further, the predetermined character to be searched may be one or plural. Also,
The user may arbitrarily set. Further, the display area may display only one line,
A plurality of lines may be displayed. In addition, when the display of the text of the text data is completed, the end may be clearly indicated by, for example, displaying that fact or setting all display areas to spaces. When the text data is composed of symbols other than ordinary characters such as a space and a colon, the display may be switched to display of other text data or the acceptance of a predetermined instruction may be prohibited.

In this configuration, when the user gives a predetermined instruction while a part of the text in the text data is displayed in the display area, a predetermined character in the text data is searched, and the character of the searched character is searched. The text portion to be displayed in the text data is changed according to the position. As a result, the display of the text part displayed in the display area before the change is instantaneously changed to the display of the text part after the change. For this reason, when the user repeats a predetermined instruction, the text portion sequentially displayed changes accordingly. Therefore, if the text part displayed in a sequentially changing manner is changed in accordance with the position of the predetermined character to be sequentially searched, the user repeats the predetermined instruction to change the desired part or the entire range of the text data. It can be displayed quickly. At that time, the user
By adjusting the speed at which the instruction is given, the display of the text portion can be changed or changed at a desired speed.

[0012] A text display device according to a second aspect of the present invention comprises:
In the invention, the change of the text portion to be displayed is
Characters other than the first predetermined character positioned after the position of the character to be searched are displayed first in the display area.

Here, "a character other than the first predetermined character positioned after the position of the character" means, when a predetermined character is continuous, a character positioned immediately after the continuous character. means. The "first of the display area" corresponds to, for example, the left end when the display area can display only one line, and the upper left end when the display area can display a plurality of lines.

In this configuration, for example, if the predetermined character to be searched is a space and the text is made up of a word and a space separating each word, the search start position is set to the first part of the display area. When a predetermined instruction is given, the display changes so that the character next to the searched space is positioned at the beginning of the display area. Therefore, when the instruction is repeated, the display text changes for each word. When the search start position is set to the last part of the display area and an instruction is given, the word next to the searched space is positioned at the beginning of the display area. That is, the display contents of the display area are completely replaced. Therefore, the transition amount of the displayed text can be changed according to the setting of the search start position.

[0015] The text display device according to a third aspect of the present invention provides the text display device according to the first aspect.
Alternatively, in the second invention, the search for the predetermined character is performed in the forward or reverse direction from a position of a cursor on the text displayed in the display area. According to this, the user can easily set the search start position as a reference of the search start by adjusting the cursor position.

[0016] The text display device according to a fourth aspect of the present invention provides a text display device comprising:
In the third invention, when the text part to be displayed is changed, the display is changed from the display of the text part before the change to the display of the text part after the change by a high-speed scroll. According to this, high-speed scrolling requires a small amount of time corresponding to the number of characters existing from the text portion before the change to the text portion after the change,
The user can visually and quantitatively grasp the change or transition of the text display.

A text display device according to a fifth aspect of the present invention is the text display device according to the first to fourth aspects, further comprising means for scrolling the display of the text based on the text data, and finally changing the text portion to be displayed. When a predetermined time elapses after that, the display of the text by the scroll is started. According to this, since the user changes or changes the display of the text according to a predetermined instruction, there is a predetermined time before the text display by scrolling is started, so that the content of the text displayed last can be easily set. Can be grasped or confirmed. In addition, since the display by scrolling is automatically started after a predetermined time, the convenience for the user is also improved.

[0018] A text display method according to a sixth aspect of the present invention is a text display method in which text is displayed in a predetermined display area based on given text data. A search step of sequentially searching for a predetermined character in the text data in a forward direction or a reverse direction every time,
Sequentially changing a portion of the text to be displayed in the text data in accordance with a position in the text data of the character to be sequentially searched. According to this, as in the case of the first invention,
The user can quickly display a desired portion or the entire range of the text data. At that time, the display of the text portion can be changed or changed at a desired speed.

[0019] In the text display method according to a seventh aspect of the present invention, in the sixth aspect, the change of the text portion to be displayed is such that the character other than the first predetermined character positioned after the position of the character to be searched is replaced with the character. The display is performed so as to be displayed first in the display area. According to this, as in the case of the second invention, the transition amount of the displayed text can be changed according to the setting of the search start position.

The text display method according to an eighth aspect of the present invention is the text display method according to the sixth aspect.
Alternatively, in the seventh invention, the search for the predetermined character is performed in the forward or backward direction from a position of a cursor on the text displayed in the display area. According to this, as in the case of the third invention, the search start position serving as the reference for the search start can be easily set by adjusting the cursor position.

[0021] The text display method according to the ninth invention is directed to the sixth method.
In the eighth to eighth inventions, when the text part to be displayed is changed, a change from the display of the text part before the change to the display of the text part after the change is performed by high-speed scroll. According to this, similarly to the case of the fourth invention, it is possible to visually and quantitatively grasp the change or transition of the display of the text.

The text display method according to a tenth aspect of the present invention is the text display method according to the sixth to ninth aspects, further comprising the step of scrolling the display of the text based on the text data, and finally changing the text portion to be displayed When a predetermined time elapses after that, the display of the text by the scroll is started. According to this, as in the case of the fifth invention, the content of the text displayed last can be easily grasped or confirmed. Also, convenience for the user is improved.

[0023]

FIG. 1 is a block diagram showing a configuration of a text display device according to an embodiment of the present invention. Elements 1 to 6 in FIG. 6 correspond to the elements 1 to 6 in FIG. Reference numeral 7 in FIG. 1 denotes a skip instruction key for the user to give an instruction to the apparatus to skip the display of the text on the display unit 5. Reference numeral 8 denotes a copy of the text data in the edit buffer 3. , A search buffer used to search for predetermined characters from the copied text data.

In this embodiment, when the skip instruction key 7 is pressed, the system controller 6 searches for a predetermined character in the text data in the search buffer 8,
An address of a character other than the first predetermined character after the address of the searched character is obtained as a head address. Then, of the text data in the editing buffer 3, the character string data of a predetermined unit starting from the character data of the above-mentioned first address is transferred to the display buffer 4 as display data, and is displayed. Therefore, by repeatedly pressing the skip instruction key 7, the user can display the entire range of the text data or a desired range in a short time while sequentially changing the display range of the text data on the display unit 5 by skip movement. it can.

FIG. 2 is a flowchart showing a text display process in the text display device. When the text display process is started, as shown in the figure, the apparatus first determines in step 21 whether or not there is text data that can be displayed in given data. If it is determined that there is no text data, the process proceeds to step 30, where it is determined whether a request for text display has been made. If there is a text display request, data for displaying that there is no text to be displayed is prepared in step 32, and if there is no request, data for normal display is prepared in step 33.
Then, the prepared data is transferred to the display buffer 4 in step 38, and the text display processing ends. In this case, a display indicating that there is no text to be displayed or a normal display on a screen higher in the text display process is performed.

If it is determined in step 21 that there is text data that can be displayed, in step 22, the text data extracted by the decode IC 1 is stored in the memory 2, and in step 23,
It is determined whether there is a text display request.
If there is no request, data for normal display is prepared in step 31 and transferred to the display buffer 4 in step 38, and the text display processing is terminated.

If it is determined in step 23 that a text display request has been made, in step 24, the text data in the memory 2 is copied to the editing buffer 3. Then, in step 25, it is determined whether or not the instruction key 7 for text skip has been pressed, and if it has been pressed, in step 26, a predetermined character other than a normal character, such as a space or a colon, is searched. This search is performed on the text data in the search buffer 8 copied from the edit buffer 3, and is performed on the data of the address after the character where the cursor is located in the text currently displayed on the display unit 5. Further, in step 27, it is determined whether or not the data following the searched data is data other than the predetermined character. If the data is not data other than the predetermined character, the process returns to step 26, and further searches.
If it is data other than the predetermined character, in step 28, the address of the data is set as the head address of the data to be transferred to the display buffer 4. Then, in step 29, the data from the head address of the text data in the edit buffer 3 is transferred to the display buffer 4, and the process returns to step 25.

By the processing of steps 25 to 29, a character string other than the predetermined character located at the next address of the searched predetermined character is displayed as a leading character string on the display unit 5. Will be. At this time, the cursor is positioned on a character other than the predetermined character at the head. Therefore, the user can repeatedly search for the predetermined character by repeatedly pressing the skip instruction key 7, and can switch the display of the display unit 5 by skipping so that the next normal character becomes the first character.

If it is determined in step 25 that the instruction key 7 has not been pressed, in step 34
It is determined whether there is a text display request.
If it is determined that a request has been made, data for normal display is prepared in step 35, and this data is stored in step 38.
Is transferred to the display buffer 4 and the text display processing is terminated.

If it is determined in step 34 that there is no request for normal display, scroll display is performed on the text data in the edit buffer 3. That is, first, in step 36, it is determined whether or not the scroll timer has counted up. If the scroll timer has counted up, in step 37, the head address of the text data in the editing buffer 3 to be transferred to the display buffer 4 is incremented and the scroll timer is set. If it is determined in step 36 that the scroll timer has not counted up, the process proceeds directly to step 29.
In step 29, of the text data in the editing buffer 3, data after the current start address is transferred to the display buffer 4, and the process returns to step 25. In this way,
If the skip instruction key 7 has not been pressed and there is no text display request, steps 25, 34, 36, 3
Scroll display is performed by repeating steps 7 and 29.

According to the present embodiment, the skip instruction key 7
Each time is pressed, a predetermined character is sequentially searched, and a character string subsequent to the character is displayed as a leading character, and a subsequent character string is displayed.
By operating the skip instruction key 7, all or a desired portion of the text that can be displayed can be completed in a short time.

FIG. 3 is a block diagram showing a configuration of a text display device according to another embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 1 indicate the same elements. In this embodiment, the skip movement of the display range in the above-described embodiment is performed by high-speed scroll.

In this case, when the skip instruction key 7 is operated, the system controller 6 searches for a predetermined character in the text data in the search buffer 8 copied from the edit buffer 3, and searches for a character after the address of the searched character. An address of a character other than the first predetermined character is obtained as a leading address after the skip movement. Then, the address of the character in the editing buffer 4 where the cursor is positioned in the current display section 5 is set as the starting address before the skip movement, and the text in the editing buffer 3 is sequentially incremented from that address to the starting address after the skip movement. Of the data,
The character string data of a predetermined unit starting with the character data of each head address is sequentially transferred to the display buffer 4 as display data. As a result, the skip display is performed in such a manner that the display range is skipped by the high-speed scroll from the display range before the skip movement to the display range after the skip movement. By repeating the skip display with the skip display key 7, the user can display the entire range or the desired range of the text data in a short time while sequentially changing the display range.

In this embodiment, the system controller 6
A scroll timer for ending skip display, a scroll timer for high-speed scroll in skip display, and a scroll timer for normal scroll display are provided. The skip end scroll timer measures the time from the end of the high speed scroll skip display to the start of the normal scroll display when there is no user instruction. The scroll timer for high-speed scrolling measures a change timing of each screen of high-speed scrolling in the skip display. The scroll timer for normal scroll display measures the change timing of each screen when displaying text data while scrolling it at a normal speed.

FIG. 4 is a flowchart showing a text display process in the text display device. Steps 41 to 44 and 53 to 59 in FIG.
24, 30 to 35, and 38.

In the process of FIG. 4, when the text data in the memory 2 is copied to the editing buffer 3 in step 44, it is determined in step 45 whether or not the skip instruction key 7 has been pressed. At 46, a predetermined character such as a space or a colon is searched. This search is performed on the text data in the search buffer 8 copied from the edit buffer 3,
In addition, the process is performed on the data of the address after the character where the cursor is located on the current display unit 5. further,
In step 47, it is determined whether the data following the searched data is data other than the predetermined character. If it is not data other than the predetermined character, the process returns to step 46. If the data is other than the predetermined character, in step 48, the address of the data is set as the start address after the skip movement which is the target of the skip movement.

Next, at step 49, it is determined whether or not the skip end scroll timer, the high-speed scroll timer, or the normal scroll display scroll timer has counted up. If any scroll timer has counted up, step 5
0, edit buffer 3 transferred to display buffer 4
In step 51, the start address of the text data is incremented, the scroll timer is set in step 51, and the flow advances to step 52. If it is determined in step 49 that none of the scroll timers has counted up, the process proceeds directly to step 52. In step 52, of the text data in the edit buffer 3, the character string data of a predetermined unit starting with the character data at the current start address is transferred to the display buffer 4, and the process returns to step 45.

FIG. 5 is a flowchart showing the scroll timer setting process in step 51. In this process, first, in step 61, it is determined whether or not text skip is being performed. The text skipping means that the display is performed based on the start address after the skip movement after the skip instruction key 7 is pressed, and furthermore, the period from that point in time until the skip end timer counts up a predetermined time. Say. If you are not skipping text,
In step 65, the scroll timer for the normal scroll display is set, and the scroll timer setting process ends.

If it is determined in step 61 that the text is being skipped, it is further determined in step 62 whether or not the increment of the start address in step 50 of FIG. 4 has been performed up to the target start address after the skip movement. . If the increment has not been made to the start address after the skip movement, the scroll timer for high-speed scroll is set in step 64, and the scroll timer setting process ends. If the start address after the skip movement has been incremented, the skip end scroll timer is set in step 63, and the scroll timer setting process ends.

Therefore, when the step instruction key 7 is pressed, the increment of the start address in step 50 is repeated until the start address after the skip movement, which is the target of the skip movement, obtained in steps 46 to 48. While skip display is performed by high-speed scrolling. During this time, the timing of the change of each display for realizing high-speed scrolling, that is, the timing of increment of the head address, is controlled by the setting process of the high-speed scroll timer in step 64 and the count-up detection process of the timer in step 49. Further, after the skip display is performed, the time until the display state shifts to the normal scroll display is determined by a skip end scroll timer setting process in step 63 and a count-up detection process of the timer in step 49. Controlled. Further, the timing of incrementing the start address in the normal scroll display is controlled by the setting processing of the normal scroll timer in step 65 and the count-up detection processing of the timer in step 49.

According to this embodiment, skip display is performed by high-speed scrolling while controlling the scroll speed by the scroll timer for high-speed scrolling, so that the user can visually and quantitatively determine the change or transition of the text display in the skip display. Can be grasped.
In addition, since the period from the end of the skip display to the transition to the display by the normal scroll is controlled by the skip scroll timer, the user can check the display contents after the skip with a margin.

[0042]

As described above, according to the present invention, a predetermined character is searched each time a predetermined instruction is received, and a text portion to be displayed is determined according to the position of the searched character in the text data. Since the change is made, the user can display a desired portion or the entire range of the text data at a desired speed or quickly by repeating a predetermined instruction. In addition, when the information to be viewed is known, the user can quickly reach the information and display the information.

Further, the first character other than the predetermined character located after the position of the character to be searched is
Since each word constituting the text is separated by spaces, colons, etc., the characters are searched for, so that the user can repeat predetermined instructions by displaying them at the beginning of the display area. The display text can be changed by skip movement for each word. By changing the search start position, the amount of transition of the displayed text can be changed.

Further, since the character search is performed in the forward or backward direction from the position of the cursor on the displayed text, the user can adjust the search start position by adjusting the cursor position. Can be set more easily.

Further, since skip display is performed by high-speed scrolling, the user can visually and quantitatively grasp the change or transition of the text display.

When a predetermined time has elapsed since the last skip display, text display by normal scrolling is started. Therefore, after skipping display, the user starts text display by normal scrolling. By this time, the display contents after the skip display can be easily grasped or confirmed. In addition, the display by normal scrolling is automatically started after a predetermined time, so that convenience for the user is also improved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a text display device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a text display process in the apparatus of FIG.

FIG. 3 is a block diagram showing a configuration of a text display device according to another embodiment of the present invention.

FIG. 4 is a flowchart showing a text display process in the apparatus shown in FIG. 3;

FIG. 5 is a flowchart showing a scroll timer setting process in FIG. 4;

FIG. 6 is a block diagram illustrating a configuration of a conventional text display device.

FIG. 7 is a flowchart showing a text display process in the apparatus shown in FIG. 6;

[Explanation of symbols]

1: decode IC, 2: memory, 3: edit buffer,
4: display buffer, 5: display unit, 6: system controller, 7: skip instruction key, 8: search buffer.

Claims (10)

[Claims] 1. A text display device for displaying a text in a predetermined display area based on given text data, comprising: an instruction receiving means for receiving a predetermined instruction; Search means for sequentially searching forward or backward in data; and sequentially changing a portion of the text to be displayed in the text data according to a position in the text data of the character to be sequentially searched. A text display device comprising: 2. The method according to claim 1, wherein the change of the text portion to be displayed is
2. The method according to claim 1, wherein a character other than the first predetermined character located after the position of the character to be searched is displayed first in the display area.
The text display device according to 1. 3. The search for the predetermined character is performed in the forward direction or the backward direction from a position of a cursor on a text displayed in the display area as a reference. 3. The text display device according to 2. 4. The method according to claim 1, wherein, when the text part to be displayed is changed, the change from the display of the text part before the change to the display of the text part after the change is performed by high-speed scrolling. A text display device as described in Crab. 5. A means for scrolling the display of text based on the text data, wherein when a predetermined time has elapsed since the last change of the text part to be displayed, the text display by scrolling is performed. The text display device according to any one of claims 1 to 4, wherein the text display device is started. 6. A text display method for displaying a text in a predetermined display area based on given text data, comprising: an instruction receiving step of receiving a predetermined instruction; A search step of sequentially searching forward or backward in data, and sequentially changing a portion of the text to be displayed in the text data according to a position in the text data of the character to be sequentially searched. And a text display method. 7. The change of the text portion to be displayed is as follows:
7. The method according to claim 6, wherein a character other than the first predetermined character located after the position of the character to be searched is displayed first in the display area.
Text display method described in. 8. The method according to claim 6, wherein the search for the predetermined character is performed in the forward or backward direction from a position of a cursor on the text displayed in the display area. 7. The text display method according to 7. 9. The method according to claim 6, wherein, when the text part to be displayed is changed, the change from the display of the text part before the change to the display of the text part after the change is performed by high-speed scrolling. Text display method described in Crab. 10. A method of displaying text based on the text data by scrolling, and when a predetermined time has elapsed since the last change of the text part to be displayed is performed, the display of the text by scrolling is performed. The text display method according to any one of claims 6 to 9, wherein the method is started.