JPS6247312B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cursor display method in a full dot matrix type partial one-line display, and in particular, by making it easier to read the cursor display position for an entire line on a terminal device, etc. We propose a cursor display method that improves operability, has simple configuration and control, and is advantageous in terms of cost.

Traditionally, some high-end models use CRT
A full one-line display using a cathode ray tube (cathode ray tube) or the like was used, and all data for one line could be displayed. Additionally, a cursor was also displayed if necessary.

However, such a full one-line display has been problematic in terms of cost.

In general, many word processors, memory typewriters, and the like use a dot matrix type partial one-line display in which the pattern of displayed characters is, for example, 7 dots vertically and 5 dots horizontally.

In such a partial one-line display, the number of characters that can be displayed is naturally smaller than the number of characters that can be input per line. For example, the allowable number of input characters for terminal devices is 80, 96, 132, etc.
The number of digits displayed on the line display is, for example, 20 digits.
24 digits, 28 digits, 32 digits, 40 digits, etc. are common.

Therefore, in the conventional cursor display method, for convenience in inputting, editing, proofreading, etc., a counter for displaying cursor digits is provided separately from the data display, and the operator can specify the required location by key operation. , the cursor position was displayed as a number. However, in such a numerical display,
It is difficult to determine where the cursor is located within the format settings, and it is also disadvantageous in terms of cost.

Additionally, for those with a printer, a mechanical display method is used in which the head is operated to confirm its position. This method has the disadvantage that the head must be moved even when no printing operation is performed.

In a partial 1 line display,
If you enter more digits than the number of digits displayed, the display will switch or shift, and even if the cursor is displayed, the cursor will be fixed at the left and right edges of the display or returned to its original position. You end up repeating the same action over and over again, and you end up not knowing which digit is actually being input.

FIG. 1 is a block diagram of a cursor digit display in a conventional partial one-line display. In the drawing, 1 is a data register, 2 is a display for displaying data, 3 is a timing counter/decoder, 4 is a counter for displaying cursor digits, and 5 is a cursor data register.

The display data sent from the data register 1 is controlled by the timing counter/decoder 3 and displayed on the display 2 digit by digit.

Further, the data of the cursor digit is stored in advance in the cursor data register 5 by key operation. The cursor data stored in the cursor data register 5 is also simultaneously controlled by the timing counter/decoder 3, and the number of digits displayed by the cursor is numerically displayed on the cursor digit display counter 4.

Using this type of display on the counter 4, the number of digits on which the cursor is displayed can be easily read, but some skill is required to judge the cursor position in the overall configuration of one line of the input device. .

Therefore, it is an object of the cursor display method of the present invention to solve such inconveniences and improve operability by making it easy to see where the cursor is located in the format settings.

To this end, the cursor display method of the present invention uses a panel in which at least one dot line, such as one or two lines, for displaying the cursor is added to the data display section of the conventional partial one-line display. Each dot of this added one or two dot line is made to correspond to each digit of the data display section using a scale plate or the like. For example, when the cursor position is moved each time display data is input, the cursor is displayed by moving one dot at a time, which corresponds to one display digit, on the dot line for displaying the cursor. let

FIG. 2 is a block diagram for explaining the cursor display method of the present invention. In the drawing, 6
is a register for display data and cursor data,
7 is a display equipped with a dot line for displaying the cursor position, and 3 is a timing counter/decoder similar to that shown in FIG.

In the case of FIG. 2, a scale plate corresponding to the data display digits is provided on the display 7 with a cursor display line. In this state,
The 1st to 9th digits of the data display section are alpha
~I'' is displayed, and the cursor is displayed at the next 10th digit. On the dot line for displaying the cursor position provided above the data display section, the 10th dot corresponding to the 10th display digit is lit and displayed.

The lighting of this dot for displaying the cursor position indicates the display digit that corresponds to all 1 lines, and even if the partial 1 line display progresses and the data display is switched or shifted, all 1 lines will be displayed. As long as the cursor display digit on the line is not changed, the dot corresponding to the same digit continues to be lit. Such display data and cursor position display control is performed by a display data and cursor data register 6 and a timing counter/decoder 3.

FIG. 3 shows a partially enlarged view of a display using the cursor display method of the present invention.

In the case of FIG. 3, the cursor is displayed at the 24th digit on a 20-digit partial one-line display.

The dot configuration of the display for this purpose is determined as follows.

The composition of one character is ₁ dot vertically and ₁ dot horizontally,
Also, let the character spacing (space) be x ₂ dots and the number of display digits be z. Assume that the line configuration for displaying the cursor is _y2 dots, and for displaying other cursors, underlines, etc., _y3 dots are used.

The panel configuration of the display in this case is as follows: vertical Y = y ₁ + y ₂ + y ₃ (dots), horizontal X = (x ₁ + x ₂ ) x z-x ₂ (dots).

As an example, the dot configuration of one character is vertical y ₁ x horizontal x ₁
is 7×5, character spacing x ₂ = 1, y ₂ = 1 dot line is used to display the cursor, y ₃ = 1 dot line is used to display the cursor, underline, etc., and number of display digits z = 20 digits. Then, the matrix is composed of vertical Y = 7 + 1 + 1 = 9 (dots) and horizontal X = (5 + 1) x 20 - 1 = 119 (dots).

Above the data display section of this display, 1 line of 119 dots is provided as a cursor display section for carrying out the cursor display method of the present invention, and a scale board is placed at the dot corresponding to each display digit. The scale is marked by etc.

In the case of a 20-digit display as shown in Figure 3, the number of horizontal dots X is 119, so 119
It is possible to display data up to digits.

In this case, if the number of characters that can be input on one line is 96 digits, a portion of the 119 dots will be used.

Therefore, it is determined which of the 119 dots corresponds to which digit of the data display section, and graduations are carved on a scale plate or the like to correspond to each dot.

In the display example shown in Figure 3, the third dot from the left is the 0th digit, and then the 1st, 2nd, 3rd, and so on.
It is said that...

Therefore, the cursor displayed on the 4th digit of the 20-digit data display section can be seen at a glance by the lighting of the 24th digit on the cursor display section. becomes readable. Although the first to fifth digits of the data display section are shown in FIG. 3, the sixth and subsequent digits are omitted because one line consists of 20 digits.

Note that Fig. 3 shows the case where a scale board is provided in the cursor display area, but instead of the scale board, the size of the dot itself can be changed every 5 dots or every 10 dots to be larger than the other dots. It is also possible to clearly indicate the correspondence with the display digits by providing two dots in the vertical direction for every 10 dots, and it may also be used in conjunction with a scale plate.

Furthermore, the dot display on the cursor display section is not limited to constant lighting, but can also be displayed blinking.

As described above, by using the cursor display method of the present invention, it is possible to read the cursor position, that is, the data input digit, on one line for cursor display together with the cursor line displayed on the data display section or the like. Furthermore, its configuration requires only adding at least one dot line for cursor display to the conventional display panel, and the control for this is simple, achieving the excellent effect of significantly improving the operability of word processors, etc. be done.

Furthermore, when the cursor display method of the present invention is used in combination with format display, operability can be further improved.

FIG. 4 shows an example of a display when the cursor display method of the present invention and format display are combined.

In the case of FIG. 4, in addition to the dot line for cursor display described in detail in connection with FIGS. 2 and 3, a similar dot line for displaying a format is provided.

On the dot line for format display, when a format designation instruction and its digit position are input from the input device, a dot corresponding to the digit position of the format is displayed lit.

When using a 1-dot line as a format display method, for example, for left hand margin LHM, the specified digit and the 1 dot line to the right of it.
By lighting two dots of the dots, and for right hand margin RHM, lighting two dots of the designated digit and the one dot to the left of it, it is distinguished from the one-dot lighting display of the designated digit in the tabulation TAB display. . In this case, simply
If you only need to distinguish LHM and RHM from TAB, you can display one of the two, for example, LHM and RHM, blinking and TAB lit, and use only one dot for each corresponding to the specified digit. It is possible.

As described above, in the cursor display method of the present invention, by using not only the cursor display position but also the format display, the cursor position within one entire line becomes clearer, and the operability is significantly improved.

In the case of Figure 4, the data display section shows 6 characters from the 0th digit.
Alphabets "A to G" are input up to the digits, and a cursor line is displayed at the 7th digit.
However, as is clear from the format display line, the left hand margin LHM appears in the 15th digit.
is set, the 22nd digit dot lights up on the cursor display line, indicating the cursor position.

Therefore, it can be seen at a glance that the cursor line displayed at the 7th digit of the data display section corresponds to the 22nd digit of the entire line.
Even if such cursor display is not used together with format display, if the margin is set, the 22nd digit will be displayed in the same way. However, it is clear that the display can be made more clearly when both are used together.

FIG. 5 is a block diagram of a display control circuit used in the conventional display system. In the drawing, 8 is a data register, 9 is a pattern generator, 10 is an inhibitor circuit, 11 is a Y driver, 12 is a display panel, 13 is a frequency divider, 14 is a clock pulse generator, 15 is an inverter, and 16 is an AND gate circuit. , 17 is an X decoder driver,
18 is an X counter, 19 is a format register, 20 is a data selector, 21 is a decoder, 2
2 is an inhibit circuit, 23 is a driver, and 24 is a numeric display.

Further, FIG. 6 shows an example of the configuration of the format register.

The display panel 12 has a character structure of 7 vertically x 5 horizontally.
Assume that a dot pattern is displayed.

The operation of the circuit of FIG. 5 is as follows.

First, a basic clock is generated by the clock pulse generator 14, and this basic clock is sent to the frequency divider 13, pattern generator 9, format register 19, and X counter 18.

The frequency divider 13 generates one pulse for every six pulses of the input basic clock, and drives the data register 8.

The 7-bit code sent from the data register 8 is the pattern address of the pattern generator 9, and within the pattern generator 9,
The pattern corresponding to that address is selected.

The selected pattern is sent to the Y driver 11 for sequentially driving the anode of the display panel 12 by the basic clock. This Y driver 1
1 output, the anodes in one vertical column in the data display area on the display panel 12 are simultaneously driven in accordance with the selected pattern.

That is, the pattern in the first column is driven by the first basic clock, and the patterns in the second and third columns are sequentially driven by the basic clocks that are input one after another.
A string consists of one character.

The basic clock drives the frequency divider 13 and the pattern generator 9, and at the same time causes the X counter 18 to count up, and operates to correspond to each column of the display panel 12 by the X decoder driver 17.

The display panel 12 is driven to turn on each column using such anode signals and column signals.

In the initial state, the address of the first digit display pattern is sent from the data register 8. In this case, the X counter 18 is "0" and the first column of the display panel 12 is being driven. In addition, the pattern generator 9 sends out pattern data of 7 dots in the first row.
The lighting drive of the first column is performed by the X decoder driver 17 and the Y driver 11.

Next, when the basic clock sends out one pulse,
The X counter 18 advances by one stage, and the output of the X decoder driver 17 indicates the second column. At the same time, in the pattern generator 9, the built-in counter advances by one stage, the pattern of the second column is sent out, and the lighting drive of the second column is performed.

Such an operation is repeated sequentially up to the 5th column using 5 pulses of the basic clock, and when the 6th pulse of the basic clock is sent from the clock pulse generator 14, an output pulse is generated from the frequency divider 13. . This output pulse causes the data register 8 to advance by one digit, and the second digit address is sent to the pattern generator 9.

The output pulse from the frequency divider 13 simultaneously operates the inhibitor circuit 10 via the inverter 15, inhibiting the output of the pattern generator 9, and displays one dot on the display panel 12 corresponding to the space between characters. is ensured. moreover,
The output of the inverter 15 is the AND gate circuit 16
The gate of is closed, and the basic clock of the 6th pulse is
The input to the counter 18 is inhibited.

Next, the format register 19 will be explained. As shown in FIG. 6, for example, a 4-bit register is used. If one full line is 132 digits, 3 digits are required for cursor data, 3 digits for LHM, and 3 digits for RHM.Furthermore, registers of 3 digits each are required for setting TAB data. Only as many as possible are required.

Therefore, the register length is determined depending on the number of tabs that can be set, and a register length of 3×(number of tabsets)+9 digits is required.

As the number of tabs that can be set increases, the register length becomes longer in the case of a 4-bit configuration. Therefore, 8
If a bit-structured register is used, the necessary number of bits can be secured and the length of the register can be shortened. However, when using an 8-bit register, it is necessary to select between upper and lower registers.
Format register 19 and decoder 2 in FIG.
1, a data selector 20 as shown by the dotted line must be provided.

In addition, in the format register shown in Figure 6, the cursor data is in the 29th digit, the LHM is in the 24th digit,
This shows a case where RHM is input at the 132nd digit, TAB set position data is input at the 35th digit, 41st digit, etc.

This format register 19 is shifted by the basic clock and converted by the decoder 21 into 7 segment data. This data output is passed through the inhibit circuit 22 to the driver 23.
and the numeric display 24 is driven. This numeric display 24 is driven in synchronization with the X counter 18 and is scanned in the same manner as the dot matrix type display panel 12.

The number of digits of the numeric display 24 needs to be equal to the register length of the format register 19. However, this number of digits may be saved and only three digits may be provided for displaying the tab set position. In this case, each time you set a tab, the previous data disappears and the last input setting position is displayed. Therefore, the register lengths of the numeric display 24 and the format register 19 can be reduced accordingly, but the operability is reduced because the previous set position disappears.

Next, the cursor display method of the present invention will be explained.

FIG. 7 is a block diagram of a display control circuit for implementing the cursor display method of the present invention. Reference numerals in the drawings are the same as in FIG. 5.

As shown in FIG. 4, the display panel 12 includes, in addition to the conventional data display section, a one-dot line for cursor display and one dot line for format display.
A dot line is provided.

The operation of the circuit shown in FIG.
This method is almost the same as the conventional method except that 8 is not inhibited.

FIG. 8 shows an example of the configuration of a format register used in the cursor display method of the present invention.

As data stored in the format register, a total of two bits are required, one bit for format display and one bit for cursor display, corresponding to each display digit.

In the case of FIG. 8, an 8-bit register is used to shorten the register length, and this register is used in a four-stage configuration. Each row of A ₁ to _{A 4} contains data for format display, and B ₁ to A 4 contain data for format display.
Each row of _B4 receives 40 bits of data for cursor display.
Note that this cursor display data is memorized.
It is also possible to use each of the stages _B1 to _B4 as a data input section for data area display in order to similarly illuminate and display the display digits of the data display section on the dot line for cursor display.

When using a register with a multi-stage configuration such as this four-stage configuration, each stage is selected by the data selector 20.

FIG. 9 shows a data selector 20 used in the four-stage format register shown in FIG.
FIG. In the drawing, U1 is a 2-bit counter, U2 and U3 are inverters, and G1 to G9.
indicates an AND gate circuit, and G10 and G11 indicate an OR gate circuit.

FIG. 10 is a timing chart for explaining the operation of the cursor display method of the present invention.

First, referring to FIG. 7, the format register 19 is synchronized with the X counter 18, is driven by the basic clock from the clock pulse generator 14, and is always in a linked state.

In the initial state, the first bit of each of A ₁ to A ₄ and B ₁ to B ₄ is sent from the format register 19 to the data selector 20 .

However, the counter U1 of the data selector 20
is set to "00" in the initial state, and gate circuits G1 and G5 are selected, and format data _A1 and cursor data area display data _B1 are input to the input terminals Y1 and Y of the Y driver _11. given to ₂ .

Next, when the basic clock advances by one pulse, the second bit is output from the format register 19. In this case, the counter U of the data selector 20
1 is the same as the initial state, the AND gate circuits G1 and G5 are similarly selected and applied to the input terminals _Y1 and _Y2 of the Y driver 11.

Such an operation is repeated every time the basic clock advances by one pulse, and when the basic clock advances by 40 pulses, the format register 19 returns to its initial state and outputs the first bit again.

At this time, the counter U1 of the data selector 20
is counted up once and becomes "01", selecting AND gate circuits G2 and G6. Therefore, the first bit of the format data A ₂ and the cursor data area display data B ₂ is applied to the input terminals Y ₁ and Y ₂ of the Y driver 11. Then, when the basic clock advances by one pulse, the second bit is output.

In this way, the format register 19 returns to its initial state every 40 pulses of the basic clock, and the AND gate circuit of the data selector 20
G1 and G5, G2 and G6, G3 and G7, G4 and G
8 are sequentially selected, and the format register 19
1 bit from each row of A ₁ to _{A 4} and B ₁ to B ₄ of Y
It is input to the input terminals _Y1 and _Y2 of the driver 11.

Therefore, format data, cursor and data area display data are displayed on the display panel 12.
Each display line above is displayed by lighting.

Note that the AND gate circuit G9 is the X counter 1
The gate is opened by the output of each of the 1st, 2nd, 4th, and 32nd bits of 8, and the gate output pulse at that point is used as the basic clock and the counter U1
connected to be input to the

Also, in the timing chart in Figure 10,
When two bits are used to distinguish LHM and REM from TAB display, the adjacent one bit is indicated by a dotted line.

As explained in detail above, according to the cursor display method of the present invention, by simply adding at least one dot line for cursor display to a conventional full dot matrix type partial one line display, it is possible to display a full one line. It becomes possible to clearly display the display position of the cursor line in the display digit.

Therefore, in a word processor or the like, the display position of the cursor can be easily read, and the operability is significantly improved. Furthermore, since the panel configuration and control for this purpose are simple, it is also advantageous in terms of cost.

Moreover, as explained in connection with FIGS. 4 and 7 to 10, the format can be specified by adding an additional one or two dot line parallel to this cursor display dot line. It is also possible to display the data area displayed on the data display section by displaying the digit position, or by using this dot line for displaying the cursor or by providing another dot line in the same way. If the dot line is used for both the cursor display and the data area display, for example, the cursor position display should be displayed blinking to clearly distinguish it from the data area display, which is always lit. Good too.

As described above, according to the cursor display method of the present invention, the partial 1
An excellent effect is achieved in that the operability of the line display can be significantly improved while maintaining the cost advantage of the line display.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a cursor digit display in a conventional partial one-line display, Fig. 2 is a block diagram for explaining the cursor display method of the present invention, and Fig. 3 is a portion of a display using the cursor display method of the present invention. An enlarged view, FIG. 4 is an example of a display when the cursor display method of the present invention and format display are combined, FIG. 5 is a block diagram of a display control circuit used in the conventional display method, and FIG. is also an example of the format register configuration used in the conventional display method,
FIG. 7 is a block diagram of a display control circuit for implementing the cursor display method of the present invention, FIG. 8 is a configuration example of a format register used in the cursor display method of the present invention, and FIG. 9 is a block diagram of a display control circuit for implementing the cursor display method of the present invention. FIG. 10 is a detailed diagram of the data selector used in the four-stage format register shown in FIG. 1, and a timing chart for explaining the operation of the cursor display system of the present invention. In the drawing, 3 is a timing counter/decoder, 6 is a register for display data and cursor data, 7 is a display equipped with a dot line for displaying the cursor position, 8 is a data register, 9 is a pattern generator, 10 is an inhibit circuit, and 11 is a Y driver, 12 is display panel, 13
is a frequency divider, 14 is a clock pulse generator, 15 is an inverter, 17 is an X decoder driver, 18 is an X counter, 19 is a format register, 20
indicates a data selector.

Claims (1)

[Claims] 1. In a full dot matrix type partial 1-line display capable of X-Y control, at least one dot line among the constituent dots is used for cursor display, and each dot on this dot line corresponds to each digit of display data. , a cursor display method characterized in that the display position of the cursor on one full line can be read at a glance.