JPH065534B2 - Typewriter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention sequentially displays data input from a keyboard unit having a large number of character / numerical keys line by line on a display device and stores the data in a storage device. The present invention relates to a typewriter configured to be stored.

(Prior Art) Conventionally, as a typewriter of this type, the scroll down key is pressed once while the data stored in the storage device is displayed on the display device capable of displaying one line of data. By doing so, the data of the line immediately after the line currently being displayed is displayed on the display device, and by operating the scroll up key, the data one line before the line currently being displayed is displayed. There is something I did.

(Problems to be Solved by the Invention) However, in the conventional typewriter, since the display change speed on the display device, that is, the scroll speed is set to a constant value, line data distant from the line data currently being displayed can be displayed. There is a problem that it takes a lot of time and is inconvenient for displaying.

Configuration of the Invention (Means for Solving the Problems) In order to solve the above problems, in the present invention,
First control means for reading the data of a row immediately preceding the row currently being displayed on the display device from the storage device and displaying the data on the display device in response to a key operation on the keyboard portion; Second control means for reading the data of the row immediately after the row currently being displayed on the display device from the storage device and displaying the data on the display device in response to the key operation of The determination means for determining whether or not the key for operating the second control means is continuously operated, and the first or second control means is continuously operated based on the determination signal output from the determination means. Repeat means to be operated automatically, and when the repeat means is operating,
There is provided speed control means for gradually increasing the display line changing speed by gradually shortening the operation interval of the first or second control means.

(Operation) According to the present invention having the above-described configuration, when it is determined that the key for operating the first or second control means is continuously operated, the first or second control means is operated. The operation interval can be gradually shortened to gradually increase the display line change speed on the display device, and line data distant from the currently displayed line data can be quickly displayed.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, a power switch 1a is provided on the rear right side of the typewriter 1, and a platen 2 is supported on the rear side of the typewriter 1. Based on the operation of (not shown), it is transferred in the forward direction or the reverse direction. A guide rod 4 extending in parallel with the platen 2 is arranged in front of the platen 2,
A carriage 5 is supported on the guide rod 4 so as to be movable left and right along the platen 2, and is also supported so as to be rotatable around the guide rod 4. Carriage 5
A thermal head 6 is mounted on the top of the carriage 5, and the carriage 5 is moved left and right along the guide rod 4 and rotated based on the operation of a well-known drive device (not shown). The head 6 can move between a print position where it is pressed against the print sheet 3 and a rest position where it is separated from the print sheet 3.

A keyboard portion 7 is provided at the front of the typewriter 1, and a display device 8 made of liquid crystal capable of displaying characters having a number of digits shorter than one line is provided at the keyboard portion 7. Various keys such as a character / number key 9 for inputting alphabets and numbers, a margin set key 10, a tab set key 11, a carriage return key 12 and a space key 13 are provided on the keyboard unit 7. . On the right side of the display device 8, a scroll-up key 14, which is operated to display on the display device 8 the data of the line immediately before the line currently displayed on the display device 8, is displayed on the keyboard unit 7. A scroll down key 15 that is operated to display the data on the line immediately after the line being displayed on the display device 8 is provided, and the cursor 8a indicating the data input position on the display device 8 is moved to the left or right. Cursor right move key 16 and cursor left move key 1 for
7 are provided respectively.

Next, the control circuit of the typewriter 1 will be described with reference to FIG. In the figure, reference numeral 20 denotes a central processing unit (CPU), and a printer device 21 including the carriage 5, the thermal head 6 and the like is connected to the CPU 20, and the keyboard portion 7, the display device 8 and the read-only device are also provided. A memory (ROM) 22 and a random access memory (RAM) 23 are connected to each other.

The ROM 22 stores a program for controlling the operation of the entire typewriter, the RAM 23 stores character data input by operating the character / number keys 9, and margin position data and tab position data. Etc. are stored.

The CPU 20 includes a first control means 24, a second control means 25, a discrimination means 26, a repeat means 27 and a speed control means 28. Then, when the scroll-up key 14 is operated, the first control means 24 reads the data of the line immediately preceding the line currently being displayed on the display device 8 from the RAM 23 and displays it on the display device 8. Let
When the scroll down key 15 is operated, the second control means 25 reads the data of the line immediately after the line currently displayed on the display device 8 from the RAM 23 and displays it on the display device 8. The discriminating means 26 discriminates whether or not the scroll-up key 14 or the scroll-down key 15 is continuously depressed, and outputs a predetermined discriminating signal to the repeat means 27 during the continuous operation. The repeat means 27 continuously operates the first or second control means 14, 15 based on the discrimination signal. The speed control means 28 including a delay counter is the repeat means 27.
During the operation of the first or second control means 14, 15
The operation interval of is shortened to increase the change speed of the display line on the display device 8.

Next, the operation of this typewriter will be described with reference to FIGS.
It will be described with reference to FIG. After the power switch 1a shown in FIG. 1 is operated to turn on the power of the typewriter 1, a predetermined key is operated to display a predetermined line data among the character data stored in the RAM 23 on the display device 8. When any one of the keys is operated in step S1 of FIG. 3 (a), it is determined in step S2 whether or not the data is input based on the key operation, and if the result is YES, the process proceeds to step S3. move on. Here, when the previously operated key has been operated once and then again depressed intermittently for a certain time or longer, the discriminating means 26 discriminates that it is in the repeat state. In other cases, it is determined that the repeat state is not set. If the repeat state is not set, the result in step S3 is N
It becomes O and proceeds to step S4. In step S4, the CPU 20 sets the count of the delay counter constituting the speed control means 28 to "20", for example. Next, in step S5, it is determined whether or not the previously operated key is the scroll up key 14 or the scroll down key 15, and if the result is YES, then in step S6 the count "20" ×
A delay time of 5 milliseconds is set, and the process proceeds to the next step S7.

Then, in this step S7, it is judged whether or not the delay count is, for example, "5". In this case, since the result is NO, the delay count is decremented by 1 in step S8 and becomes "19". Next in step S9
In, scroll up operation or scroll down operation is performed.

That is, if it is not determined that the key operated in step S1 is the scroll-up key 14 and the key is in the repeat state, the current display device 8 is displayed after 100 milliseconds have elapsed after the key data was input.
The line before the line being displayed in is displayed. If the key operated in step S1 is the scroll down key 15, the line immediately after the line currently being displayed is displayed on the display device 8 after 100 milliseconds have elapsed after the key data was input. It Next, in step S10, it is determined whether or not the power supply to the typewriter 1 has been stopped. If the result is NO, the process returns to step S1.

On the other hand, when the scroll up key 14 or the scroll down key 15 is operated once in step S1 and then continuously pressed, the process proceeds to step S3 via step S2, and the result in step S3 is YES.
And the result in step S5 is also YES. Then, in step S6, the delay time, which is 5 times the milliseconds of the previously subtracted delay count, that is, "19", is set. Next, in step S7, it is determined whether or not the delay count is "5". In this case, the result is NO, so the delay count is again subtracted in step S8.

Then, the count number previously subtracted in step S9 is "1.
After the delay time corresponding to "9" has elapsed, the scroll-up operation or scroll-down operation is performed.

As is apparent from the above description, when the scroll up key 14 or the scroll down key 15 is operated once in step S1 and then continuously depressed again, the determination means 26 determines that the repeat state is set. , While the keys 14 and 15 are being pressed, the repeat means 27 operates the scroll keys 14 and 1
5 operates the first or second control means 24, 25, and further, based on the discrimination signal output from the discrimination means 26, the speed control means 28 controls the first or second control means 24, 25. The operation interval is shortened and the operation is repeated until the delay count becomes "5".
Thereby, the change speed of the line displayed on the display device 8 can be increased to a maximum of 25 milliseconds every 5 milliseconds.

Effects of the Invention As described in detail above, the present invention can gradually increase the display line change speed on the display device. Therefore, particularly in character data consisting of a large number of lines, a line far from the line data currently being displayed can be obtained. The data can be displayed in a shorter time, and the operation is very easy. Furthermore, since the display line change speed gradually increases, the display line change speed is relatively slow when displaying line data at a position close to the currently displayed line data. It is possible to quickly display the desired line data without significantly exceeding it. Therefore, there is an excellent effect that the desired row data can be displayed by a simple operation in a short time regardless of the positional relationship of the row data being currently displayed.

[Brief description of drawings]

FIG. 1 is a perspective view of a typewriter embodying the present invention,
FIG. 2 is a control circuit diagram of the typewriter, FIG. 3 (a),
(B) is a flowchart. In the figure, 1 is a typewriter, 8 is a display device, 14 is a scroll up key, 15 is a scroll down key, 2
0 is a central processing unit, 23 is a random access memory, 2
4 is a first control means, 25 is a second control means, 26 is a discrimination means, 27 is a repeat means, 28 is a speed control means (the above 24 to 28 are included in 20).

Claims (1)

[Claims] 1. A storage device (23) for displaying data input from a keyboard portion (7) having a large number of character / number keys (9) line by line on a display device (8).
In the typewriter configured to be stored in the storage device (1), the data of the line immediately preceding the line currently displayed on the display device (8) in response to a key operation on the keyboard portion (7) is stored in the storage device ( 23) Read out from display device (8)
And a first control means (24) for displaying the data on a line immediately after the line currently displayed on the display device (8) in response to a key operation on the keyboard unit (7). Display device (8) read from the storage device (23)
Whether or not the second control means (25) for displaying on the screen and the keys (14, 15) for operating the first or second control means (24, 25) are continuously operated. And a repeat means (27) for continuously operating the first or second control means (24, 25) based on the determination signal output from the determination means (26). And a speed control means (28) for gradually increasing the display line changing speed by gradually shortening the operation interval of the first or second control means (24, 25) during the operation of the repeat means (27). ) And a typewriter.