JPH022149B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement in a proportional printing or display device for characters, symbols, etc. having different widths. The present invention relates to a display device having a proportional remaining digit display function that facilitates operator judgment and improves operability by displaying numbers.

Prior Art Generally, in the case of proportional printing or display, such as alphanumeric characters, in which character symbols with different widths are arranged for easy viewing, the actual number of characters printed or displayed on one line is They differ depending on the type of characters formed.

As a conventional method for displaying the number of inputtable characters when performing such proportional printing, there is a known method of sequentially subtracting the number of input keys from the total number of digits for one line and displaying the remaining number of digits.

However, in the case of proportional printing, the amount of space occupied differs depending on the type of characters printed. For example, if we compare the letters "M" and "i", there is a difference of about three times. Therefore, when printing in the same range, the number of inputs that can be made for the characters "M" and "i" naturally differs by about 2 to 3 times.

However, with the method of subtracting the number of input keys from the total number of digits, for example "20", even if "M" is entered once,
Even if you enter "i" once, the remaining digits will be "19", and if you enter it twice, it will be displayed as "18".

Therefore, if characters such as "M", which have the maximum width, are input continuously, the remaining number of digits will be displayed accurately, but if characters with a narrower width are input, the number of remaining digits will be displayed correctly. becomes an error. For example, if you enter the minimum width "i" 20 times, the number of remaining digits will be "0", but in reality, only about half of the printable range has been entered, and in the case of "i", It is possible to input about 20 more times.

In this way, the conventional method of displaying the remaining number of digits is
Regardless of the width of the characters actually input, the number is subtracted for each number of keystrokes and displayed as the number of remaining digits.

Therefore, when an operator performs a key operation on a printing device or the like, it is difficult to judge how many characters can actually be input on that line even if the operator looks at the remaining number of digits displayed on the display. It was hot.

Problems to be Solved by the Invention Therefore, the display device with the proportional residual digit display function of the present invention solves such inconveniences in the conventional display method, and uses the maximum width character as a reference to By displaying the number of digits, the purpose is to make it easier for the operator to make decisions and improve operability.

Means for Solving the Problems A display device equipped with a proportional residual digit display function of the present invention includes a line information holding means for holding the total number of units for one line, and the held total number of units for one line. A subtraction means that performs subtraction by the number of units possessed by each character symbol etc. input sequentially each time a character symbol etc. is input from , and a quotient obtained by dividing the subtraction result of the subtraction means by the number of units of the maximum width character is output. and a proportional remaining digit display function, which outputs and displays the number of possible input digits obtained by sequentially subtracting by the subtracting means for each input of a character symbol, etc. That's what I do.

Embodiment 1 Next, an embodiment of the display device having a proportional remaining digit display function according to the present invention will be described in detail with reference to the drawings.

In summary, the total number of units for one line is divided in advance by the number of units corresponding to the amount of space for the widest character and displayed as the number of digits, and the number of units less than one digit is held in a separate counter. If the amount of space for the next key-in character is greater than the number of units held in this counter, first subtract "1" from the remaining number of digits, and then subtract "1" from the maximum space amount for the input character. Subtract the amount of space, add the difference to the number of units in the counter, and hold the result in the counter.

Therefore, the number of digits displayed matches the number of digits that can actually be input, making it easier for the operator to make decisions.

In this example, the maximum amount of character space is 10
The case of units will be explained. The total number of digits that can be entered in one line is 20 digits for the maximum width of 10 units of characters.

FIG. 1 is a block diagram showing an embodiment of a display control circuit for a display device having a proportional remaining digit display function according to the present invention. In the drawing, 1 is a system controller, 2 is a latch circuit, 3 is a binary-decimal converter, and 4 is a 10
5 is a residual digit display device, 6 is a binary down counter, 7 is a clock generator,
8 shows an OR gate circuit, and 9 shows an AND gate circuit.

FIG. 2 is a block diagram showing the detailed structure of the decimal down counter 4 and the remaining digit display device 5 of the circuit of FIG. In the drawings, 4A to 4D are decimal down counters, 5A to 5C are 7-segment decoders, 5A' to 5C' are indicators, and A
or A' is the hundredth place, B or B' is the tenth place, C or
C′ is now displayed in first place.

The number of digits that can be printed (or displayed) for one line, or the amount of space expressed as the number of units, sent from the system controller 1 is held in the latch circuit 2 in the form of a hex code.

The number of digits or space amount for one line held in this latch circuit 2 is read out by a strobe signal generated when the power is turned on, when margin is set, or when printing starts after key input. The decimal converter 3 converts it into a decimal code. And decimal down counter 4
Preset to A to 4C.

The set decimal code is decoded by seven segment decoders 5A to 5C, respectively, and displayed numerically on displays 5A' to 5C'.

In addition, in this case, the binary down counter 6
And the decimal down counter 4D is set to "0".

In this state, when a valid key for printing or display is input, the system controller 1 sends out the amount of space corresponding to the character symbol and sets it in the binary down counter 6.
The output of the binary down counter 6 is input to the OR gate circuit 8, and at this point the output of the OR gate circuit 8 becomes "1".

Therefore, the gate of AND gate circuit 9 is opened. The output of the clock generation circuit 7 is applied to the other input of the AND gate circuit 9, and the AND gate circuit 9 outputs a clock.

The clock output from this AND gate circuit 9 operates to decrement the binary down counter 6 and also to decrement the display decimal down counters 4A to 4D.

This clock is sent until the binary down counter 6 reaches "0", and when the down counter 6 reaches "0", the output of the OR gate circuit 8 also becomes "0".
As a result, the gate of the AND gate circuit 9 is closed. Therefore, decimal down counters 4A to 4D
A number equal to the amount of space set in the down counter 6 is subtracted from the display 5A' to 5.
The numerical value is displayed in C′.

If the space amount of the input character is less than the maximum width of 10 units, the difference will be stored in the decimal down counter 4D.

And the amount of space for the next character entered is also
By similar operation, decimal down counter 4A~4
The remaining digits are subtracted from D, and the remaining number of digits is displayed numerically on the displays 5A' to 5C'.

Therefore, the number of inputtable digits for the character having the maximum width is always displayed on the displays 5A' to 5C'.

Embodiment 2 Next, as another embodiment of the display device having a proportional remaining digit display function of the present invention, a case where the space amount of the character having the maximum width is 16 units will be described.

In this case, the number of digits that can be entered in one line is 20 digits (320 units). In this case, the down counter 4D of FIG. 2, which holds fractions less than the number of one-digit units, is constituted by a hexadecimal counter, and the rest is constructed in the same manner as in FIG. 2.

Also, as an example of input characters, “Bicoh
Company LTD.” 18 digits shall be entered.

FIG. 3 shows an example of the space amount of "Bicoh Company LTD." and the operation of the down counters 4A to 4D. Note that "A" to "F" in the column of the down counter 4D for holding fractions less than the maximum number of units for one digit indicate "10" to "15", respectively.

In the initial state, down counters 4A to 4
D is "0200" and displays 5A' to 5
The top three digits "020" are displayed in C', indicating that the remaining digits are "20".

Then, when the first character "B" is input, the space amount "13" is subtracted and the counter 4A~
4D becomes "0193". The reason why the counter 4D is "3" is because "1" is decremented from the counter 4C indicating the first place, and the space amount "13" is subtracted from the hexadecimal counter "10000", that is "16". be.

Therefore, "019" is displayed on the displays 5A' to 5C', indicating that the maximum amount of space, such as characters "M" and "W", can be input in 19 digits.

Next, when "i" is input, the space amount "5" is subtracted, the counters 4A to 4D become "018E", and the remaining digit becomes "18". “E” in counter 4D means the remaining “14” obtained by subtracting the space amount “5” of “i” from the sum of “16” resulting from the down-carry of counter 4C in the first place and the previous “3”. .

Furthermore, when the next "c" is input, the counters 4A to 4D become "0186" and the remaining digits remain "18". In other words, the total number of digits that can be entered is “20”
Even if it is a digit, if you input it proportionally,
It can be seen that even after entering the three digits of "Bic", there are still 18 characters left with the maximum amount of space. In contrast, in the conventional display method, “20−
3=17", and "17" is displayed as the remaining digit.

Hereafter, in the same way, “Bicoh” in Figure 3
Company LTD.", when the input operation is completed, counters 4A to 4D will be "008B", leaving 8 remaining digits and a fractional unit of "11". .

Therefore, the operator should check the displays 5A'-5.
From "008" displayed in C', the user knows that eight digits are possible with the maximum amount of space, and can continue the input operation. In this case, in the conventional display method, "20-18=2", and "2"
is displayed as the remaining digit.

In this way, the down counter 4D that is not displayed
By configuring the down counter with the same number of steps as the maximum space for one digit, the number of remaining digits can be displayed extremely easily and accurately.

In addition, in the display device of the present invention, when the remaining digit becomes "0", it is possible to input a character with an amount of space smaller than the fractional unit held in the down counter 4D, which is not displayed. All you have to do is keep this in mind, and the operability is significantly improved compared to conventional display methods.

In the above second embodiment, the case where the remaining digits are displayed based on the total number of inputtable digits for one line has been mainly described. However, the amount of space for the input characters is sequentially subtracted from the total number of units that can be input for one line, the remaining number of units that can be input is divided by the maximum amount of space, and the quotient is displayed as the number of digits that can be input. What may be done is as explained above.

Effects of the Invention Therefore, according to the display device equipped with the proportional remaining digit display function of the present invention, it is possible to easily know how many digits of the maximum width character symbol etc. can be input, and the operability is improved. is significantly improved.
Furthermore, since this configuration is also simple, excellent effects such as being advantageous in terms of cost can be achieved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a display control circuit for a display device having a proportional residual digit display function according to the present invention, and FIG.
A block diagram showing the detailed configuration of the decimal down counter 4 and the remaining digit display device 5 of the circuit shown in FIG. 1, and FIG. Figure shown. In the drawing, 1 is a system controller, 2 is a system controller, and 2 is a system controller.
is a latch circuit, 3 is a binary-decimal converter,
4 is a decimal down counter, 5 is a residual digit display device, 6 is a binary down counter, and 7 is a clock generator.

Claims (1)

[Scope of Claims] 1. A display device used in an information processing device capable of proportional printing or display, comprising: a line information holding means for holding the total number of units for one line; and the held total number of units for one line. A subtraction means for subtracting the number of units held by each character symbol etc. input sequentially each time a character symbol etc. is inputted from a number, and a quotient obtained by dividing the subtraction result of the subtraction means by the number of units of the maximum width character. an output means for outputting, and a proportional remaining digit display function consisting of: each time a character symbol, etc. is input, the number of possible input digits obtained by sequentially subtracting by the subtraction means is outputted and displayed by the output means; A display device characterized by: