JPS63106068A - Word processor - Google Patents

Abstract

PURPOSE:To constantly clarify the current position of a cursor and neighboring characters and smoothly execute the correction operation of a document by providing a control means for displaying a mode selection screen in a second area after a display row including the cursor is moved to a first area when the cursor is present in the second area at the time of switching from an input/ editing mode to the mode selection screen. CONSTITUTION:Data inputted from a keyboard is displayed on a display device together with the cursor indicating a data input position. When the input/editing mode is set by a switching means, the input data is displayed in the first area of the display screen of the display device and the input data succeeding to the input data is displayed on the second area. At the time of switching from the input/editing mode to the mode selection screen, after the cursor is moved to the second area, the mode selection screen is displayed in the second area.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a word processor, and more particularly to a word processor that displays data input from a keyboard on a display device together with a cursor indicating the data input position.

(Prior Art) Today, in addition to conventional general word processors, electronic typewriters have been developed that are equipped with word processing functions that allow the composition of stored documents.
In order to facilitate document proofreading, a liquid crystal display is often provided to appropriately display the contents of the stored document. This liquid crystal display cannot be made very large due to the space available for the typewriter and the characteristics of the liquid crystal display itself, so it is generally only possible to display a portion of the document, which is equivalent to two to several lines. be.

On the other hand, while creating a document, there are cases where it is desired to check the print format (for example, presence or absence of underlining, presence or absence of bold designation, ON/OFF of spell check mode, ON/OFF of line/pie/line mode, etc.).

As a means of dealing with this, some conventional electronic typewriters are designed to erase part of the document displayed on the liquid crystal display and display print format information in its place. However, with traditional electronic typewriters,
Display switching is performed regardless of the cursor position on the liquid crystal display.

(Problems to be Solved by the Invention) In the above-mentioned conventional electronic typewriter, display switching between document content and print form information on the display device is performed regardless of the cursor position. This has the drawback that the files and documents surrounding them are no longer displayed. For this reason, there is a problem in that the text at the location where the cursor is placed to change the content of the document becomes difficult to distinguish due to the display switching, making it difficult to perform proofreading work smoothly.

(Object of the Invention) An object of the present invention is to provide a word processor that can always display a display line including a cursor when switching a part of the display screen to another display while displaying input data on a display device. That's true.

(Means for Solving the Problems) As shown in FIG. 1, a word processor according to the present invention is a word processor that displays data input from a keyboard on a display device together with a cursor indicating a data input position.・Switching means for changing modes such as editing mode, and the display screen of the display device are input and
a first area for displaying input data in an edit mode; a second area for displaying input data that is continuous with the input data in an input/edit mode; and a second area for displaying a mode selection screen when switching modes; When switching from input/edit mode to mode selection screen using the switching means,
The apparatus includes display control means for moving the display line including the cursor to the first area when the cursor is in the second area, and then displaying the mode selection screen in the second area.

(Operation) In the word processor according to the present invention, data input from the keyboard is displayed on the display device together with a cursor indicating the data input position.

Here, if the input/edit mode is set by the switching means, the input data is displayed in the first area of the display screen of the display device, and the input data that is continuous with the input data is displayed in the second area. do.

Further, when the switching means switches from the input/edit mode to the mode selection screen, the cursor is moved to the second area, and then the mode selection screen is displayed in the second area.

(Effect of the invention) According to the word processor according to the present invention, as described above (,
Since it includes a switching means, a first area and a second area on the display screen of the display device, and a display control means, when switching from the input/edit mode to the mode selection screen, the cursor display and the display near the cursor are always displayed on the screen. will be displayed in the first area that does not require switching.

This solves the conventional problem of the cursor position and nearby documents not being displayed when the display is switched, and the current cursor position and nearby characters are always clear, making document proofreading work smoother. Be able to do it.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In this embodiment, the present invention is applied to an electronic typewriter I that can be used as a word processor. As shown in FIG. 2, a keyboard 3 is disposed at the front of a body frame 2 of the typewriter 1, and a printing mechanism PM is disposed within the body frame 2 behind the keyboard 3.

The keyboard 3 is provided with the following various keys. Namely, character keys including alphabet key 4, numeric key 5, and symbol key 6, space key 7, backspace key 8, carriage return key 9, mode display command key 10, copy key 11, line indent key 12, input/ Edit mode switching key 13, tab/decimal tab safe key 14, tab clear key 15, tab key 1
6, paper feed key 18, auto underline key 19,
These include a bold key 20, a cursor movement key 22, a search/replace key 23, and the like. The functions obtained by operating the various function keys described above are the same as those of existing typewriters, so description thereof will be omitted. Further, the keyboard 3 is provided with a mode changeover switch 60 for switching the operating mode of the typewriter 1 between a typewriter mode and a word processor mode.

Further, at the rear of the keyboard 3, a display 21 is provided for displaying characters and symbols input by operating the character keys 4, 5, 6, the space key 7, and the like. The display 21 is of a two-line display type as shown in FIG. - It is a second area that displays input data following the input data in the edit mode and displays a mode selection screen when switching modes.

The platen 24 is disposed in the left-right direction of the main body frame 2, and is automatically or manually rotationally driven by a platen drive motor 25 or a platen knob 26 (not shown) to feed the printing paper 17.

The carriage 27 also has rods 29 and 30 mounted on two guys provided parallel to the platen shaft 28, as shown in FIG.
The platen 24 is supported by a wire 32 driven by a carriage drive motor 31 and reciprocated in the left-right direction along the platen 24 .

A type wheel drive motor 34 for driving a type wheel 33 is disposed on the carriage 27, and a type wheel 33 housed in a wheel cassette 35 is removably attached to the motor shaft as shown in FIG. driven,
Type 3 at the tip of the selected spoke of type wheel 33
6 is placed at the printing position opposite to the printing hammer 37. The printing hammer 37 is attached to the top of the carriage 27,
The printing hammer solenoid 38 is driven by a drive current from a printing hammer driver 39, which will be described later, to strike the printing paper 17 with the type set at the printing position.

A ribbon cassette 41 for supplying the printing ribbon 40 is placed on a holder 42, the front end of the holder 42 is rotatably attached to the carriage 27, and the printing ribbon 40 is supplied from the supply spool of the ribbon cassette 41. The ribbon is wound onto a take-up spool, and the take-up spool is driven by a ribbon feed motor 43.

Next, the overall configuration of the control system of the typewriter I will be explained based on the block diagram of FIG. 4.

The driving devices for the printing mechanism PM include a platen drive motor 25 and its driver 47, a carriage drive motor 31 and its driver 48, a ribbon feed motor 43 and its driver 49, and a type wheel drive motor 34 and its driver 5. The printing hammer solenoid 38, its driver 39, etc.

The display device 21 is a liquid crystal display.
and a display controller 52.

The control device C includes a CPU (central processing unit) 46 and a CPU
ROM (read only memory) 53 and RAM (random access memory) 5 connected to U46
4, and the CPU 46 has a keyboard 3.
and each driver 39, 47 to 49, 51 of the drive device.
and a display controller 52 are connected.

The ROM 53 stores each motor of the printing mechanism in correspondence with code data of each character inputted from the character keys 4, 5, 6, space key 7, etc. of the keyboard 3, or code data read from the print data memory described later. 25.3
1, 34, 43, the printing hammer solenoid 38, and the display 21, the program that controls the printing machine JJPM and display mechanism based on commands from various function keys, and the input/output using the mode changeover switch.
When switching from the edit mode to the mode selection screen, when the cursor is in the second area, a display control program is stored that moves the display line including the cursor to the first area and then displays the mode selection screen in the second area. A program memory 100 is provided.

The RAM 54 also includes a print data memory that sequentially stores printed data in correspondence with the print position, a current position memory that stores the current position of the carriage 27 in correspondence with the print position, and a current position memory of the type wheel 33. A type position memory that stores the type 36 at the rotational angle position, that is, the printing position, and various types of memories that temporarily store the results of arithmetic processing by the CPU 46 are provided. Furthermore, RAM54
includes a text memory 101 in which text data input from the keyboard 3 is stored, and keys 14, 15, and 1.
a formant memory 102 that stores the print format commanded by 6, etc., and a mode/format display data memory 103 that stores data for those desired to be displayed on the display 21 among various modes and print formats. , stores the position in the text memory 101 of the first character on the first line on the display 21. The first display position pointer 104 and the text memory 1 for the first character on the second line on the display 21
A second display position pointer 105 for storing the position in 01, and a cursor position memory 106 for storing the position of the cursor at the position commanded by the cursor movement key 22 on the display 21 are provided.

In the CPU 46, the program memo I710 in the ROM 53
0 is read and if the typewriter mode is designated by the mode changeover switch 60, each character or symbol is displayed on the display 21 based on the code data corresponding to each character or symbol input from the keyboard 3. , the printing mechanism PM prints on the printing paper 17. In the word processor mode, the data entered manually is displayed on the display 21 and sequentially stored in the text memory 101 of the RAM 54.
The data in the text memory 101 is read out and the printing mechanism P
In addition to performing general word processing processing in the input/editing mode, such as printing by M or changing the data in the text memory 101 based on keystrokes, it also performs specific display control processing as described below. It is supposed to be done.

By the way, the present invention relates to an improvement in text proofreading in the word processor mode, and will be described below with reference to FIG. 5 showing a flowchart.

This control is started when the typewriter 1 is powered on, and initial settings such as reading out the program memory 100 of the ROM 53 are performed in step Sl (hereinafter simply referred to as 81 and other steps are handled in the same manner). After that, the process moves to S2.

In S2, the presence or absence of key human power is determined, and the system enters a state of waiting for key human power. If there is key human power in S2, move to S3. S
In step 3, it is determined whether the word processor mode is designated by the mode changeover switch 6°. If the typewriter mode has been designated, the process moves to S4, and after processing as a general typewriter is performed, the process returns to S2.

If the determination result in S3 is Yes, that is, if the word processor mode is selected, the process moves to s5. In s5, it is determined whether or not the manual key input is due to the mode display command key 10.

If an input is made using a key other than the mode display command key 10, this means that the typewriter 1 is maintained in the input/edit mode, so the process moves to 86 and other general word processing is performed. After that, return to S2. For example, in S6, print format information such as tab positions and margins is written in the format memory 102 in accordance with the switching position of the mode selector switch 60 and the input of various function keys, and at the same time, print format information such as tab positions and margins is written in the mode/format display data memory 103. (In this embodiment, for example, whether the word processor mode is set, whether the line/pi/line mode is set, and whether or not the decimal tab is set are written. ).

Here, in order to proofread the text in the text memory 101 based on the word processing in S6, two lines of a certain document read out from the text memory 101 are displayed on the liquid crystal display 21 for proofreading as shown in FIG. ). Cursor 50 is on display 2
It is placed in the first row rbJ of 1. Also, RAM54
The cursor position memory 106 stores an address corresponding to the current position of the cursor 50. The first display position pointer 104 stores an address in the text memory 101 corresponding to the first character on the first line of the display 21. Said second display position pointer 10
5 stores the address in the text memory 101 corresponding to the first character on the second line of the display 21.

Then, when the operator presses the mode display command key 10 to check the current print format,
In order to switch from the input/edit mode to the mode selection screen, the determination result in S5 becomes Yes and the process moves to S7. S7
Now, based on the cursor position memory 106, the cursor 5 is
It is determined whether 0 is on the second line on the display 21. In the state shown in FIG. 6(a), the cursor 50 is on the first line, so the process moves to SIO.

In S10, the display on the second line of the display 21 is erased, and the mode/format information in the mode/format display data memory 103 is read out instead.
Display as shown in figure (b).

In addition, among the mode format information, line, pie,
General format information such as line mode and decimal tab is written in the mode/format display data memory 103 when the function key is pressed manually, as described above. Furthermore, regarding individual format information such as underline and bold that is set for each character, one of the two bytes that constitute one character in the text memory 101 is used to store the information that is individually set for each character. , display position pointer 104,105 and cursor position pointer 10
It is possible to display it on the display 21 by reading it from the text memory 101 in correspondence with the value of 6 and writing it into the mode/format display data memory 103.

After displaying the mode and format information in step 310, the process moves to the next Sll. In Sll, it is determined whether or not the pressing of the mode display command key 10 has ended, and if the pressing has ended, the process moves to S12.

That is, if you keep pressing the mode display command key 10, the sixth
Since the display shown in FIG. 3B is maintained, the operator can check the setting mode and print format while looking at the character rbJ where the cursor 50 is placed.

In S12, the data on the line next to the data displayed on the first line of the display 21 is read from the text memory 101 and displayed on the second line of the display 21 in place of the mode/format information. Specifically, two lines of the document located at a predetermined address are read from the text memory 101 based on the display position pointers 104 and 105 and displayed on the display 21. In this case, both pointers 104
- Since there is no change in 105, the display will be the same as in Fig. 6(a). When the process in S12 is finished, the process returns to S2.

Next, based on the word processing in S6, the display 21
Assume that the display shown in FIG. 7(a) is displayed.

The cursor 50 is placed at "0" on the second line.

In this state, when the operator presses the mode display command key 10 to confirm the current print format, the process moves to S7 via S5.

In the case of FIG. 7(a), it is determined that the cursor 50 is on the second line based on the value of the cursor position memory 106, so the determination result in S7 becomes Yes, and the process moves to S8.

In S8, the data displayed on the second line is block transferred to the first line. At the same time, the second display position pointer 10
A value of 5 is written into the first display position pointer 104, and an address in the text memory 101 corresponding to the first character of the next line is written into the second display position pointer 105. Then, the process moves to S9, and in response to the block transfer in S8, the cursor position memory 106 is rewritten to a corresponding value, and the cursor 50 is placed at the same position (the position of "0") on the first line.

In the next SIO, the mode is displayed on the second line of the display 21.
The format information is displayed as shown in FIG. 7(b). Further, as described above, the processing in S11 and S12 is performed, and finally the image is displayed on the display 21 as shown in FIG. 7(c). That is, character data advanced by one line in the text is displayed on the display 21, and the process returns to S2. Incidentally, the display on the display 21 may return to the original state shown in FIG. 7(a) when the mode display command key 1O is pressed down.

In this way, even when the cursor 50 is on the second line as shown in FIG. 7(a), the print former 7) can be displayed without erasing the cursor 50 and the characters around it.

Note that the number of display lines of the liquid crystal display 21 is not limited to two lines, and the present invention can be similarly adopted even if the number of display lines is more than two lines. Further, in the above embodiment, the second area is the second line of the display 21, but it may be the first line. Furthermore, the present invention can be similarly applied to word processors that do not have the switch 60 for switching between typewriter mode and word processor mode.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram of the word processor of the present invention.
2 to 7 show embodiments of the present invention, in which FIG. 2 is a perspective view of an electronic typewriter, FIG. 3 is a longitudinal partial view showing the main parts of the typewriter, and FIG. 4 is a typewriter. A block diagram of the control system, Fig. 5 is a flowchart of the control routine, Fig. 6 (a), (b) - (C), Fig. 7 (a),
Each of (b) and (C) is a plan view showing the display state of the display. 3...keyboard, IO...mode display command key,
21...Liquid crystal display, 46...CPU (central processing unit), 53...ROM (read-on memory), 54...RAM (random access memory), 50...cursor, 60... Mode changeover switch, C...control device, D...display mechanism. Patent applicant: Brother Industries, Ltd. Figure 1 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] (1) A word processor that displays data input from a keyboard on a display device together with a cursor indicating the data input position, comprising a switching means for changing modes such as an input/edit mode, and a display screen of the display device. It has a first area that displays input data in input/edit mode, and a second area that displays input data that is continuous with the input data in input/edit mode, and displays a mode selection screen when switching modes. , When the switching means switches from the input/edit mode to the mode selection screen, when the cursor is in the second area, the display line including the cursor is moved to the first area, and then the mode selection screen is displayed in the second area. A word processor comprising: a display control means for controlling a word processor.