DE3149859A1 - DISPLAY CONTROL DEVICE FOR A WORD PROCESSOR FOR TEXT EDITING FUNCTIONS - Google Patents

Description

3U9859

Display controller for a word processor for text editing functions

The present invention relates to a display controller for a text editing apparatus or a so-called word processor using a microprocessor will.

As is well known, there is a conventional word processor from a keypad that has a number of keys for letters, digits, etc. that work in the same way are arranged as it is for conventional typewriters applies, a signal processing circuit controlled by a microprocessor, a display device for displaying a text entered through the keyboard, and text data recording means for recording of the text data on a recording medium, for example a magnetic tape or a magnetic disk.

Corresponding to the word processor as described above a desired sentence or text entered via the keypad can be corrected or converted into a desired one Format can be converted while the display is being observed.

After such an editing operation, the final Text is stored on the magnetic tape or the magnetic disk and also on ordinary paper by an electric wire Printer, if necessary, can be printed out.

This conventional type of word processor is normally AC powered Can be loaded from above with a magnetic disk. Furthermore is a Full-page or a full-line display provided so that it is very difficult to move this device from the office to another place.

The present invention has for its object to provide a novel word processing device which has sufficient portability. The object of the present invention is further to provide a word processing device to create, which is equipped with a half-line display. Furthermore, there is the task for the present invention therein, a portable word processor to provide that with a keyboard, a half-line display and a microcassette magnetic tape recorder Is provided.

According to the word processing device according to FIG In the present invention, a pair of display control buttons are provided in a front panel.

These buttons can select either the last half or the first half of a line from a text. The whole Size of the word processing unit according to a preferred one Embodiment for the present invention is almost the size of a DIN A4 paper page.

The word processor according to the present Invention can run on batteries and write data page by page into a microcassette magnetic tape.

If a typed document is desired, an output of the word processor is provided to a printer.
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Further objects, features and advantages of the present invention will be given from the following in detail Description can be seen in connection with the figures, with the same reference numerals in the figures and the same elements and designate parts.

Fig. 1 shows a front view of a control panel for a preferred embodiment for the word verb

processing device according to the present invention .

Fig. 2 shows a block diagram of an embodiment for circuitry included in the word processor according to Fig. 1 is used.

Fig. 3 shows a flow chart of a program which is carried out by the device is carried out according to the present invention.

Fig. 4 shows a schematic illustration for explanation the present invention.

As already explained, the present invention is described below with reference to the drawing.

Fig. 1 shows a control panel for an embodiment for the word processor according to the present invention, where reference numeral 1 denotes a keypad denotes that has a plurality of keys that are arranged in series with one another like a conventional typewriter lie. The word processing device according to FIG. 1 has a half-line liquid crystal 1 character display 2 which Can display 40 characters, each of which consists of 5 χ 10 points. On the upper right side of the control panel is a microcassette tape recorder 3 for recording and / or reproducing the operator's voice and arranged by text data. The microcassette tape recorder 3 is controlled manually using function keys 4. The text data entered using keypad 1 or the microcassette tape recorder 3 are inputted by text editing control keys 5 or repaired.

The word processor according to the present The invention also has a loudspeaker 6 below the halftone liquid crystal 1 character display 2 and a built-in

Ι Microphone 7 above the micro-cassette tape recorder 3 on. Furthermore, the word processing device operated with batteries. A reference numeral 8 in Fig. 1 denotes a power switch or power supply on / off switch.

A block diagram of the word processor described above will now be described with reference to FIG for the keys of the keypad 1 and the text edit control keys 5 contains. The key signal codes generated by the key signal encoder are sent to a central processing unit (CPU) 12 by means of an interface circuit 13, which is also connected to a display block 14 which is a half-line display buffer 15 (in the case of the present exemplary embodiment corresponds to the half-line 40 characters) and the half-line liquid crystal display 2 has.

A microcassette interface circuit 16 is also provided provided in a microcassette control panel 18 and with the central processing unit (CPU) 12 connected. This microcassette control panel 18 contains the microcassette tape recorder 3 and the function keys 4 for it, as well as an automatic squelch circuit 17, the can suppress noise of the data signals from the loudspeaker 6 by a program control.

The entire operation of the word processor will be handled by a control program that is written in a read-only memory (ROM) 19, which with the central Processing unit (CPU) 12 is connected. That Microcassette control panel 18 contains a data converter (not shown), which is used to convert a logic "1" into an audio frequency waveform of 600 Hz and a logic "0" into an audio frequency vibration bundle of 300 Hz and to implement the other way round.

The word processor according to the present Invention has a storage capacity of 1800 bytes one Text buffer 20. The idea of the size of the text buffer 20 is based on the average Number of characters to be written on a DIN A4 sheet of paper in a letter format.

The following is the operation of the above described Word processor explained.

In the facility described above, if a desired Text or a sentence is entered via the keypad 1, the corresponding coded signal via the Interface circuit 13 to the text buffer memory 20 delivered. As described above, the text buffer memory 20 has a storage capacity that is compatible with the code signal one page, for example with 1800 bytes, corresponds. When the text data stored in the text buffer memory 20 are recorded on a microcassette magnetic tape the operator gives text recording commands by pressing the keypad 1. The corresponding command signal is sent to the central processing unit (CPU) 12 supplied. Depending on this command from the central processing unit (CPU) 12, the text data is sequentially read out from the text buffer memory 20 and then into the microcassette tape recorder 3 in the form of audio frequency vibration bundle signals by means of the micro-cassette interface circuit 16 entered. At this time, the command is also sent to the microcassette interface circuit 16 from the central processing unit (CPU) 12 supplied so that the microcassette tape recorder 3 in its recording mode is operated. At this time, just before reading out the text data from the Text buffer memory 20 receives a pre-information code signal and a data control signal which is a predetermined synchronization signal contains a block number and other signals from the central processing unit (CPU) 12 to the

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Microcassette tape recorder 3 and placed in the. sem recorded.

Furthermore, not only text data, but also audio signals from the built-in microphone 7 through the micro cassette tape drawing device 3 can be recorded by controlling the function keys 4. Namely, if the operator a record key REC of the function keys 4 is depressed, the corresponding command signal becomes the central processing unit (CPU) 12 supplied. This means that a recording command from the central Processing unit (CPU) 12 to the microcassette tape recorder 3 is discharged so that the microcassette tape recorder 3 assumes its recording mode of operation. When recording the text data from the Text buffer memory 20 is the audio signal through the automatic Squelch circuit 17 by means of the command the central processing unit (CPU) 12 suppressed to to suppress annoying background noise.

Furthermore, when a play button is PLAY the function buttons 4 is depressed, the corresponding playback command ssi gnal to the central processing unit (CPU) 12 released. A command signal is then emitted the central processing unit (CPU) 12 to the microcassette tape recorder 3 released so that the microcassette tape recorder 3 assumes its playback mode. Immediately after the above explained Advance information code signal and the data control signal have been reproduced, the text data is reproduced and read into the text buffer memory 20. on playback of the text data from the microcassette tape recorder 3 suppresses the automatic squelch circuit 17 effectively annoying background noises for the loudspeaker 6.

If the I ο χ I. da ton over da ·; Keypad I c i nycijcbcn be, the character codes are stored sequentially in the text buffer

-δι more like 20 with a carriage return code on each of the lines saved. In the case where display is performed, code signals are basically 40 characters counted from the carriage return code to the half-line display buffer 15 transferred.

Usually the number of characters on a line is in the case of a DIN A4 page 80. As described above, the word processing device according to the present Invention of a half-line liquid crystal character display 2. As a result, the encoded text data stored in the text buffer memory 20 are stored via the central processing unit (CPU) 12 to the half-line display buffer memory. 15 and on the half-line liquid crystal character display 2 displayed. In this case, since the half-line liquid crystal 1 character display 2 starts only 40 Can display characters at the same time, the operation of the half-line liquid crystal character display 2 with the first 40 characters of a line, and if the number of characters that entered via keypad 1, exceeds 40, the last 40 characters are displayed next.

When one of display control buttons 5a and 5b among the text edit control buttons 5 is depressed, the first or last half of the data of a desired line, stored in the text buffer memory 20, selectively is supplied to the half-line display buffer memory 15 and on the half-line liquid crystal character display 2 displayed. The sentence or text passage can be changed by using the text editing control keys 5 and through the keypad 1 can be repaired or corrected. The process of touching up or correcting the sentence or passage of text is essentially the same as implemented in a prior art word processor will.

With the above facility, if a text area is just before or just after the displayed text area,

is to be displayed richly, that key of the text edit control keys 5 operated, which is intended for a partial change. Are in front of or behind this key the two display control buttons 5a and 5b are provided, correspondingly with the symbols as shown in FIG are, are equipped. When the keys are operated, the following process is carried out by the central processing unit (CPU) 12.

Fig. 3 shows, as already explained, a flow chart for the program which is stored in a read-only memory (ROM). c h e r t i s t.

Fig. 3 shows that when a block [U has a desired Key is operated, it is decided at a decision diamond [2] whether the operation of the operation key is a Display area change key as the latter (namely, display control key 5b) corresponds or does not correspond, and at decision diamond [3], it is decided whether the operation of operating a display area change key than the former (namely, the display control key 5a) corresponds or does not correspond. When the operation is none of the above, another routine is performed at a block [4] and the program returns to block [1]. If it is decided at the decision diamond [2] that the actuated key the Display area change key than the latter (key 5b), it is decided at a decision diamond [11] whether the displayed area is or is not the first half of the line concerned. If the displayed area is the is the first half range, becomes the last at a block [12] Half range from text buffer [20] to half line display buffer 15 is transmitted and the program returns to block [1]. Furthermore, if the displayed area is the last half area of the line, with the decision diamond [11] the text data for the first Half of the next line to the half line display buffer 15 at a block [13], and the pro-

-ΙΟΙ cj ramm returns to dom IJ lock [1].

If it is decided at decision diamond [3] that the request requires a change to the previous display area concerns, a decision diamond [21] decided whether or not the displayed area is the last half of the line. When the displayed area is the last half of the line, at block [22], the first half is transferred from the text buffer 20 to the half-line display buffer 15 is transmitted and the program returns to the block [U. If at the decision diamond If it is decided that the displayed area is the last half of a line, the data the last half of the previous line to the half line display buffer er memory 15 is transferred at a block 123], and the program returns to the block ti].

Fig. 4 shows an operation of the device according to the present invention Invention in a clearer form. 20th

In FIGS. 4A and 4B, a label 30 denotes an area of a printed document, each line being divided into first and last half lines.

When the following text is desired, the display control button becomes 5b depressed, with which the states of the half-line en liquid crystal 1 character display 2 as shown in Fig. 4A, be changed.

Si

On the other hand, when the checked text is desired, the display control key 5a is depressed, thus the states of the half-line liquid crystal character display 2 as in FIG 4B.

The description given above relates to a single preferred embodiment for the present invention. It will be apparent, however, that numerous modifications and variations can be carried out by a person skilled in the art.

3H9859

-πι nen without the general inventive idea or leave the scope of the novel concept of the invention would have to be. The scope of protection for the invention is determined by the claims.

tentanwait

Claims (1)

3U9859 Dipl. 4ng. H. MITSCHERLICH D-BODO MUNICH 22 Dipl.-Ing. K. GUNSCHMANN Steinsdorfstrasse 10 Dr. rer.nat, W. KÖRBER ^ ⁽⁰⁸⁹⁾ * ²⁹⁶⁶⁸⁴ Dipl-Ug. J. SCHMIDT-EVERS - PATENT LAWYERS . _Λ December 16, 1981 Sony Corporation 7-35 Kitashingawa 6-chome
Shiganawa-ku, Tokyo
JAPAN Expectations MJ display control device for a word processor for text editing functions, characterized in that a keypad (1) is provided for entering text data, that a text data processing means controlled by a microprocessor for editing the entered text data through operating the keyboard (1) is provided, that a Haibzei1en liquid crystal newspaper, * chenanzeige (2) to be printed in one line of a document to display either the first or the% last half of the text data is provided and that a pair of display control keys (5a, 5b) are provided for selectively displaying each of the halves of a line of text data based on the control of the text data processing means controlled by the microprocessor. 2, display control device according to claim 1, characterized gekennzei chnet that pressing one of the two display control buttons (5a, 5b) changes the displayed position scrolls forward half line by half line and that pressing the other of the two display control buttons (5a, 5b) moves the displayed position in the reverse direction Half line by half line along the stream of text parts, those in a text buffer memory (20) of the text data processing means are stored, rolls. 3. Display control device according to claim 1, characterized in that one of the two display control buttons (5a) has a mark / L and the other of the two display control buttons (5b) has a mark ~~ & .