JPH0119590B2 - - Google Patents

Description

Detailed Description of the Invention (a) Technical Field of the Invention The present invention relates to a display device having a table creation function.

(b) Prior Art and Problems Line printers are widely used as output devices for processing systems, but when outputting data in "table" format from this line printer, "table"
Preparation for creation is required. Currently, a method is adopted in which a programmer writes a program to determine the position of a framework (rules, etc.) forming a "table" and corrects the position of the framework using the output from a line printer. This conventional method requires repeated trial and error of modifying the program after checking the output of the line printer, and has the drawback of requiring a large number of man-hours for tabulation. One way to solve this problem is to use a display device as an output device at the tabulation stage, but the maximum number of digits per line of a normal character display device is about 80 characters. , the maximum number of digits for a line printer is
Since it had 136 digits (characters), it was inconvenient that it could not be used as an output device for tabulations.

(c) Purpose of the Invention The present invention was made to solve the above problems, and its purpose is to provide a display device that facilitates table creation.

(d) Structure of the Invention A character display device that displays a predetermined number of digits of characters on a display unit includes a character generator that receives a character code from the processing device and generates a character pattern, and a first pulse that drives and controls the character generator. a generator, a bar/dot generator that receives a character code from the processing device and outputs only a bar display signal or a dot display signal, and a first pulse generator that generates pulses with a repetition frequency different from the frequency generated. A second pulse generating section that drives and controls the bar/dot generating section, a first switching section that switches between the output signals of the character generator and the bar/dot generating section, and a plotting deflection signal that is synchronized with the second pulse generating section. a deflection signal generating section that generates the
a switching unit; and a switching control unit that controls switching of the first switching unit and the second switching unit according to a tabulation command from the processing device, and when there is no tabulation command from the processing device, the character code is changed. When a tabulation command is received from the processing device, the bars and dots, which are narrower than the width of the characters, are displayed on the display section with a width smaller than the predetermined number of digits. It is configured so that it can be displayed at a large display position.

(e) Examples of the invention The present invention will be explained below with reference to the drawings. Fig. 1 is an example of a character display, Fig. 2 is an example of a display explaining an embodiment of the present invention, Fig. 3 is an explanatory diagram of the present invention, and Fig. 4 is a block diagram explaining an embodiment of the present invention. In the figure, 1 and 8 are switching parts, 2 is a deflection part, 3 is a display surface, 4 is a cathode ray tube, 5 is a deflection signal generation part, 6 is a switching control part, 7 is a brightness modulation part, 9 is a character generator,
10 and 12 are pulse generators, 11 is bar/dot generators, A is character width, B is bar display, C is character constituent unit, CH is character code, D ₁ and D ₂ are dot display, E is character High, F, f is the frequency, G is the grid, H is the character interval, I is the action command, J is the table deflection signal, K is the cathode, L is the maximum number of display digits, P ₁ ,
_P2 is a pulse signal, Q is a character deflection signal, S is a display unit, T is a character display unit width, t is a symbol display unit width, and A and B are contact points. As shown in Figure 1,
The maximum number of display digits L for a character display device is 80 characters, which is determined by the size of the displayed characters and the size of the cathode ray tube. The present invention uses a character display device (number of digits: 80) to assemble and modify frames (rules) that make up a "table" to be output to a line printer (number of digits: 136), as shown in Figure 2. Display the borders as bars B as shown.
, and the position where the character should be displayed is displayed as a dot (D ₁ ~). In this way, 160 display positions S can be provided on a display device with a maximum display digit count L of 80 characters. Figure 3 is an explanatory diagram of the display format, and Figure 3a
As shown in , one character has a character width of A (=5C),
It is displayed with a character height of E (=7C), and the character spacing is H. Note that C is a constituent unit of a character. In order to display a "table" format framework on such a display screen, the length must be set as shown in Figure 3b.
Bar displays B 2C are arranged and displayed at intervals of C, and dot displays (D ₁ , D _{2 .} . . ) are arranged and displayed at positions where characters are to be displayed as shown. As is clear from a comparison of FIGS. 3a and 3b, two dots (D ₁ and D ₂ ) can be displayed within the character display unit width T.
As described above, since it is possible to show twice as many display positions (160) on the same size display screen, it is possible to assemble and correct the framework of a "table" produced from a line printer (maximum number of digits: 136). Become.

The display switching operation will be explained with reference to FIG. Switching parts 1 and 8 in FIG. 4 are normally connected to the contact A side. When a character code CH is received from a processing device (not shown), a character display signal from a character generator 9 is sent to a brightness modulation unit 7 via a contact A of a switching unit 8. On the other hand, since the character deflection (5×7) signal Q is supplied to the deflection unit 2, characters are displayed on the display surface 3. Note that the pulse generator 10 generates a pulse signal _P1 having a repetition frequency F, and controls the character generator 9 thereby. Further, when receiving the character code CH, the bar/dot generating section 11 generates a bar display signal corresponding to the ruled line symbol.
It outputs a dot display signal corresponding to a character, and is driven by a pulse signal _P2 of repetition frequency f generated by a pulse generator. In this example, f
=2F, and the pulse generator 12 is a multiplier circuit for the pulse _P1 generated by the pulse generator 10. next,
When the character code CH is received from the processing device and a tabulation command is also received, the switching control section 6 is activated and the switching sections 1 and 8 are switched to contact RO. As a result, the tabulation deflection signal J is synchronized with pulse _P2 .
is generated and supplied to the deflection section 2. It is assumed that the character deflection signal Q and tabulation deflection signal J are a combination of a deflection signal within one character and a deflection signal at a character position. In this embodiment, the character position deflection signal is common to the character deflection signal Q and the tabulation deflection signal J. On the other hand, the bar/dot generator 11 sends a bar display signal or a dot display signal to the brightness modulator 7 according to the character code CH, so that the bar display B is displayed on the display surface 3 as shown in FIG. A "frame" display (including ruled lines within the frame) and dot displays (D ₁ , D _{2 .} . . ) are displayed at the display position. When the operator modifies this "frame" display, he moves the cursor (not shown) of the display device to a desired location.

(f) Effects of the Invention As described above, the present invention makes it possible to correct "table" data having a number of digits greater than the maximum number of display digits, thereby eliminating the need for correction trial processing using a line printer and improving processing efficiency. It has significant potential advantages.

[Brief explanation of drawings]

Fig. 1 is an example of a character display, Fig. 2 is an example of a display explaining an embodiment of the present invention, Fig. 3 is an explanatory diagram of the present invention, and Fig. 4 is a block diagram explaining an embodiment of the present invention. The symbols used in the figure are as follows. 1 and 8 are switching parts, 2 is a deflection part, 3 is a display surface, 4
is a cathode ray tube, 5 is a deflection signal generator, 6 is a switching control unit, 7 is a brightness modulation unit, 9 is a character generator, 10,
12 is a pulse generator, 11 is a bar/dot generator, A is a character width, B is a bar display, C is a character constituent unit, CH is a character code, D ₁ and D ₂ are dot displays,
E is character height, F, f is frequency, G is grid, H
is the character interval, I is the tabulation command, J is the tabulation deflection signal, K is the cathode, L is the maximum number of display digits, P ₁ , P ₂
is a pulse signal, Q is a character deflection signal, S is a display unit, T is a character display unit width, t is a symbol display unit width,
A and B indicate contact points.

Claims (1)

[Claims] 1. In a character display device connected to a processing device and displaying a predetermined number of digits of characters on a display section, a character generator that receives a character code from the processing device and generates a character pattern, and a first character generator that drives and controls the character generator. a pulse generator, a bar/dot generator that receives a character code from the processing device and outputs only a bar display signal or a dot display signal, and generates pulses with a repetition frequency different from the frequency generated by the first pulse generator. A second drive control unit that controls the bar/dot generation section.
a pulse generator, a first switching unit that switches output signals of the character generator and the bar/dot generator, a deflection signal generator that generates a plotting deflection signal in synchronization with the second pulse generator, and a character generator. a second switching section that switches between the deflection signal and the tabulation deflection signal; and a switching control section that controls switching of the first switching section and the second switching section based on a tabulation command from the processing device; When there is no tabulation command, a character code is received and the predetermined number of digits of characters are displayed on the display section, and when a tabulation command is received from the processing device, the width of the characters is displayed on the display section. A display device characterized in that the narrow bar and dot are displayed at display positions with a number of digits greater than the predetermined number of digits.