JPH0119151B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scroll control device, and particularly to a scroll control device.
This invention relates to a scroll control device for displays such as CRTs.

Generally, displays on display devices such as CRTs are equipped with a so-called scrolling function, and by making use of this function, tasks such as information retrieval and editing processing can be performed efficiently.

In conventional scroll control systems, a dedicated scroll key (hereinafter referred to as a "scroll dedicated key") is typically provided on a predetermined keyboard. When the operator operates this scroll-dedicated key, a scroll operation is performed on the screen of a CRT or the like. Here, the line at the top of the CRT display is the first line,
If we explain the bottom line as the nth line, when the scroll key is operated once, the first line disappears from the CRT screen and the entire display moves upward one line at a time. The "n+1"th row will be displayed at the bottom where the nth row was displayed. Next, when the operator performs a continuous scroll operation, the operator continues to press the scroll key for a certain period of time. As a result, the one-time scrolling operation described above is performed continuously.

However, in such conventional technology, when performing a scroll operation for each row or column, a dedicated scroll key must be operated each time, and furthermore, the operator's operation of the dedicated scroll key and the display There is no correspondence between scrolling up and down or left and right on the screen, leading to erroneous operation of scrolling keys, and since the scrolling speed is per line or column, work efficiency decreases and speed is reduced. The drawback was that it was not possible to perform editing processing.

The purpose of the present invention is to improve the above-mentioned drawbacks of the prior art, improve operability, prevent erroneous operations by the operator, and allow the operator to arbitrarily set the speed of the scrolling operation to perform quick editing processing, etc. The object of the present invention is to provide a scroll control device that can perform the following functions.

The present invention provides a plurality of key segments for scrolling on the tablet, sets different integer values in advance to these key segments, and scrolls the operation mode in response to the touch of an input pen to any of the key segments. mode, multiplies the amount of movement of the input pen by an integer value set on the scroll key segment that is in contact at the time, and performs a scroll operation on the display device corresponding to the value multiplied by the integer. The structure is such that it performs the following. This aims to achieve the above-mentioned purpose.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

FIG. 1 is a schematic perspective view showing a tablet input device with a scroll control device according to the present invention.

In this FIG. 1, a tablet input device 1
The input device main body 2 is composed of an input device main body 2, a CRT display device 3 installed at the rear of the input device main body 2, and legs 4, 4 for supporting the input device main body 2. On the top surface of the input device main body 2, there is a tablet 5 as a character input section in which predetermined characters are arranged and displayed in each segment 7, 7, . A pen 6 and a keyboard 7 for setting programs etc.
0 is provided.

Of these, on the tablet 5 there is a scroll key segment (hereinafter referred to as a "scroll key") that is used to switch between normal character input and scrolling on the CRT display screen, and also as a key segment for performing scroll operations as described later. )
5A, 5B, and 5C are provided respectively.

On the other hand, the tablet input device 1 has built-in scroll mode canceling means for stopping the scrolling operation when the input pen 6 mentioned above is separated from the tablet 5, and simultaneously canceling the scroll mode for the entire tablet board surface. There is.

Next, an example of the tablet 5 is shown on an enlarged scale in FIG. In this figure, the numbers shown at the top end represent the X coordinate of the key segment 7, and the numbers shown at the left end represent the Y coordinate of the key segment 7. When any key segment 7 is operated with the input pen 6, coordinate information X, Y of the key segment 7 is output. For example, when the scroll key 5B is operated, 46, 37 will be output as the coordinate information X, Y. Furthermore, the scroll keys 5A, 5B, and 5C are used not only to switch between normal character input mode and scroll mode, but also to select the speed of scrolling. In this embodiment, the scroll keys 5A, 5B, and 5C are set to 1x, 2x, and 3x, respectively. For example, if the operator selects scroll key 5B,
If the input pen 6 that was in contact with the input pen 6 is moved in the direction of the coordinate information
This will be multiplied and a scrolling operation will be performed.

Here, keys 70 provided on the keyboard 70
A is used to reset up-down counters (hereinafter referred to as "U/D counters") 13A and 13B, which will be described later, and set their output values to "0".

Next, an example of the configuration of a scroll control device according to the present invention is shown in FIG. In this figure, a tablet unit 11 having a tablet 5, a keyboard 70, an input pen 6, and necessary control units is connected to a detection unit 12 that detects the amount of movement of the input pen 6.

An example of the configuration of this detection section 12 is shown in FIG. In this figure, the coordinate information X, Y output from the tablet section 11 is sent to the latch circuit 41 as a signal _S1 .
are connected so that the inputs A ₀ and B ₀ are OR
The data latch operation is performed at the falling edge of the pulse from the circuit 52, and the latched coordinate information X and Y are configured to become outputs C ₀ and D ₀ , respectively.

Of these outputs C ₀ and D ₀ , the output C ₀ is the input B of the comparator 42 and the comparators 44A and 44
B, 44C is connected to input A, and the other output _D0 is input B of comparator 43.
and is connected to serve as input A of comparators 44A, 44B, and 44C.

Next, the comparator 42 is connected so that X of the coordinate information X and Y as the signal _S1 becomes input A, and the comparator 43 is connected so that Y becomes input A. There is. On the other hand, the coordinate information X, Y of the scroll keys 5A, 5B, 5C is sent to the comparators 44A, 44B, 44C as a signal.
S ₂ , S ₃ , and S ₄ are connected to each input B.

Next, comparators 44A, 44B, 44C
compares inputs A and B, and when they match, operates to set output C to "H" level. The outputs C, C, and C of these comparators 44A, 44B, and 44C are all connected to be input to an OR circuit 53, and the AND circuits 54A and
It is designed to be input to 54B and 54C.

These AND circuits 54A, 54B, 54C include
A tablet strobe signal (hereinafter referred to as the "T _STB signal") from the tablet unit 11 (see FIG. 3) is inputted as a signal _ST via a delay circuit 55. This delay circuit 55 has a function of delaying the input signal by the pulse width of the T _STB signal. Furthermore, an OR circuit 53 and AND circuits 54A, 54B,
The outputs of 54C are R-S flip-flops (hereinafter referred to as "flip-flops") 46 and 4, respectively.
6A, 46B, 46C set terminal input S,
S, S, S, and the inputs R ₀ , R ₀ , R ₀ , R ₀ of the reset terminals are connected as follows.
A pen switch signal _S5 is input, and is reset at the fall timing of this signal.

Furthermore, the coordinate information X, Y as the signal _S1 is
It is input to the LSB change detection section 45. this
The LSB change detection unit 45 outputs a pulse when the lowest digit (hereinafter referred to as "LSB") of the coordinate information X, Y as the signal _S1 displayed in binary has changed. It has a function. Therefore, an input pen 6 is placed on the tablet 5 (see Figure 2).
(See Figure 1) If you slide it while touching it, either of the coordinate information
Since the LSB will always change, a pulse will be output.

The output of this LSB change detection section 45 is outputted to the AND circuit 47 along with the output Q of the flip-flop 46.
is connected so that it is input to the Also, the outputs Q of flip-flops 46A, 46B, 46C,
Q and Q are output as signals N ₁ , N ₂ and N ₃ . Furthermore, the above-mentioned AND circuit 47
The outputs of are connected to be input to AND circuits 48, 49, 50, and 51, respectively, and
It is connected to be input to the OR circuit 52 together with the T _STB signal.

On the other hand, outputs C and D of the comparator 42 are input to AND circuits 48 and 49, and outputs C and D of the comparator 43 are input to AND circuits 50 and 51, respectively. Comparators 42 and 43 compare the values of inputs A and B, and
<B, the output C becomes "H" level,
Conversely, when A>B, the output D is at the "H" level, and in other cases, the output D is at the "L" level. Further, the outputs of the AND circuits 48, 49, 50, and 51 are outputted as signals P ₁ , P ₂ , P ₃ , and P ₄ .

Next, the operation of the detection section 12 shown in FIG. 4 will be explained with reference to the diagram in FIG. 5. FIG. 5 shows, as an example, the case in which the scroll key 5B is touched with the input pen 6 in FIG. 2, and the input pen 6 is moved as indicated by the arrow P in the figure to perform a scroll operation. Note that in this figure, the shaded area indicates that the state is uncertain.

First, at time _T1 , when the operator touches the scroll key 5B with the input pen 6, the switch in the input pen 6 turns "OFF".
The coordinate information 46 of the scroll key 5B is transmitted from the tablet unit 11 (see Fig. 3).
37 (see FIG. 2) is output. On the other hand, if _the coordinate _information X, _Y of _the key segment operated by the operator before T ₁ is set to
If the LSB is changing, a pulse is output from the LSB change detection section 45 as shown in FIG.

Also, since X ₀ and Y ₀ are latched in the latch circuit 41, and the outputs C ₀ and D ₀ are X ₀ and Y ₀ , the input B of the comparator 42 has X ₀ and the output of the comparator 43. Y ₀ is input to each input B. Further, input A of the comparator 42 contains coordinate information 46, 3 of the scroll key 5B.
Out of 7, "46" is input, and "37" is input to input A of the comparator 43. what if
Assuming 46/X ₀ and 37/Y ₀ , as shown in Figure 5,
Output C of comparator 42 and comparator 43
Output C becomes "H" level, and other outputs D,
D becomes "L" level. Similarly, the output C of the comparators 44A, 44B, 44C is the input A
Since the coordinate information X ₀ , Y ₀ as the input B does not match the coordinate information X, Y of the scroll keys 5A, 5B, 5C as the input B, the level is "L". Therefore, flip-flops 46, 46A, 46
The output Q of B and 46C also becomes "L" level,
The output of the AND circuit 47 is also at the "L" level. Therefore, the outputs of AND circuits 48 to 51 are also at the "L" level.

Next, at time _T2 , the tablet unit 11
When the T _STB signal is output, the latch operation of the latch circuit ₄₁ is performed at the falling timing T3 of this pulse. To be more specific, at time T ₃ ,
The outputs C ₀ and D ₀ of the latch circuit 41 become the coordinate information 46 and 37 of the scroll key 5B from X ₀ and Y ₀ . Therefore, the values of inputs A and B of comparator 44B match, and output C becomes "H" level. As a result, the output Q of the flip-flop 46 also becomes "H".
level.

This operation switches from normal character input mode to scroll mode. On the other hand, since the inputs A and B of the comparators 42 and 43 match, the outputs C and D are respectively "L".
level. Therefore, in this state, the outputs of the AND circuits 48 to 51 remain at the "L" level.

On the other hand, the output C of the comparator 44B is sent to the AND circuit 54B together with the delayed T _STB signal.
will be input. Therefore, the flip-flop 46B is set, and the output Q changes from the "L" level to the "H" level.

Next, at time _T4 , if the input pen 6 moves to the area of the key segment 7 of the coordinate information 45, 37 as shown in FIG. 2, the coordinate information from the tablet unit 11 (see FIG. 3) X, Y are 4
It changes from 6,37 to 45,37. The above movement of the input pen 6 is performed while it is in contact with the input pen 6, so there is no change in the switch signal _S5 , and
T _STB signal is not output either. Next, the LSB change detection section 45 detects that X among the coordinate information X and Y changes from 46 to 45, and outputs a pulse. Furthermore, since the inputs A and B no longer match, the output C of the comparator 44B changes from "H" to "L" level.
On the other hand, since the inputs A and B match, the comparator 44A goes from "L" to "H" level, but since there is no T _STB signal, the flip-flop 44A goes from "L" to "H" level.
6A remains unset. On the other hand, there is no change in the output of the flip-flop 46, and it becomes "H".
remains at the level. Because of this,
The output of the AND circuit 47 also becomes "H" level while the pulse from the LSB change detection section 45 is being input. In other words, the output Q of the flip-flop 46
While the signal is at the "H" level, the pulse output of the LSB change detection section 45 is output as is.

On the other hand, since there is no change in the values of inputs A and B of comparator 43, outputs C and D are both
It remains at "L" level. In detail, input B
The coordinate information 46, 37 of the scroll key 5B is
Of these, "37" is input in the same way as before time T ₄ , and in the other input A, "37" of coordinate information 45, 37 of key segment 7 touched at time T ₄ is input. . Therefore, since inputs A and B match, outputs C and D remain at the "L" level.

Next, input B of the comparator 42 contains "46" among the coordinate information 46, 37 of the scroll key 5B.
is input, and the other input A contains the coordinate information 4 of the key segment 7 touched at time T ₄ .
``45'' out of 5,37 has been input. Therefore, since A<B, the output C becomes "H" level. This state is maintained until the output of the AND circuit 47, that is, the output of the OR circuit 52 falls, and the latch circuit 41 performs a latch operation, and this operation causes the output C of the comparator 42 to go "L".
level. Therefore, by the above operation,
Only the output of the AND circuit 48 remains at the "H" level for a certain period of time, and the outputs of the other AND circuits 49, 50, and 51 remain at the "L" level (see FIG. 5).

That is, when the input pen 6 moves in the direction in which X of the coordinate information X and Y from the tablet section 11 decreases due to the movement of the input pen 6 (see FIG. 2), one pulse is sent to the AND circuit for each movement. 48. Conversely, when X moves in the direction of increase, the output D of the comparator 42 becomes "H" level, so one pulse is output from the AND circuit 51 every time it moves one step in the same way as above. Become.

Next, at time _T5 , if the operator moves the input pen 6 to the key segment 7 of the coordinate information 45, 36, the LSB changes for X as described above, so the LSB change detection unit 45
Outputs pulses. Since the output Q of the flip-flop 46 is at the "H" level, the pulse remains unchanged.
This becomes the output of the AND circuit 47. On the other hand, of the inputs A and B of the comparator 43, the input B receives the time T ₄
"37" is inputted among the coordinate information 45, 37 at time T5, and the coordinate information 45, 37 at time _T5 is input to input A.
Since "36" out of 36 is inputted, and 36<37, the output C becomes "H" level. As described above, this becomes the output of the AND circuit 50 and is maintained until the output of the OR circuit 52 falls and the latch operation of the latch circuit 41 is performed.

Due to the above operation, only the output of the AND circuit 50 remains at the "H" level for a certain period of time, and the outputs of the other AND circuits 48, 49, and 51 remain at the "L" level (see Figure 5). . That is, when the input pen 6 moves in the direction in which Y of the coordinate information X and Y from the tablet unit 11 decreases due to the movement of the input pen 6 (see FIG. 2), one pulse is sent to the AND circuit for each movement. It will be output from 50.
Conversely, when Y moves in the direction of increasing, the output D of the comparator 43 becomes "H" level, so one pulse is output from the AND circuit 51 every time it moves one step in the same way as above. Become.

To summarize the above operation of the detection unit 12, the operator operates the input pen 6 and the scroll key 5
It has a function of detecting when a pen touches A, 5B, and 5C and outputting a pulse according to the subsequent movement of the input pen 6. In other words, the coordinate information X, Y
When X decreases, a pulse is output as output P ₁ every time it decreases by one, and when X increases, a pulse is output as output P ₂ every time X increases by one. Further, when Y decreases, a pulse is output as output _P3 every time Y decreases by one, and when Y increases, a pulse is output as output _P4 every time Y increases by one. Furthermore, the signals N ₁ ,
One of N ₂ and N ₃ changes from the "L" level to the "H" level.

Next, the scroll information emitted from this detection section 12 is input to a counter section 13 (see FIG. 3) as a scroll control section, and an up-down counter (hereinafter referred to as "U/D counter") 13
The values in A and 13B are now corrected. To elaborate, the signal as scroll information
P ₁ to P ₄ and N ₁ to N ₃ are the oscillator section 13, respectively.
The inputs of C are E ₁ to E ₄ and M ₁ to M ₃ . This oscillator section 13C multiplies the pulses input to the inputs E ₁ to E ₄ by a number specified by the inputs M ₁ to M ₃ , and outputs them as outputs F ₁ to F ₄ , respectively. It has a function. In this embodiment, when the input _M1 is at the "H" level, the power is doubled, when the input _M2 is at the "H" level, the power is doubled, and when the input _M3 is at the "H" level, the power is tripled. It is composed of For example, when M ₂ is at “H” level, input E ₂
When one pulse hits , the output F ₂ to 2
This results in output of two pulses. Next, the outputs F ₁ to F ₄ of this oscillator section are connected to become inputs D and U of the U/D counter 13A and inputs D and U of the U/D counter 13B, respectively. The U/D counters 13A and 3B have a function of decreasing the value of the output C when the input D is received, and increasing the value of the output C when the input U is received. For example, the output C of the U/D counter 13A
When the value of is "38" and two pulses are applied to the input U, the output C increments by two and its value becomes "40". Furthermore, in this embodiment, these U/D counters 13A and 13B are provided with a reset terminal R, and a pulse is applied to this reset terminal R by operating the key 70A on the keyboard 70 (see FIG. 1). is applied and the output C can be reset.

Next, outputs C and C of the U/D counters 13A and 13B are connected to a CRT display device 3, respectively. To explain in detail, the CRT display device 3 is a so-called cathode ray tube (hereinafter referred to as "CRT").
) 31, a memory section 32 that stores the contents displayed thereby, and a CRT control section 33 that drives and controls these CRTs 31 and memory section 32. Among these, CRT control section 3
3 is the CRT3 among the memory contents of the memory section 32.
In order to specify the content to be displayed in 1, a counter is built in, and the output x of the counter that specifies the "column" and the output y of the counter that specifies the "row" are respectively input to the memory section 32. It is becoming more and more like this.

Next, an example of the contents stored in the memory section 32 is shown in FIG. In this figure, the numbers displayed at the top end represent the coordinate x in the column direction, and the numbers displayed at the left end represent the coordinate y in the row direction. For example, the coordinates x, y are 12, 14,
information is stored. Of these stored information, the output [x,
y] is displayed on the CRT 31.

When the normal scrolling operation is not performed or when the key 70A is operated, the output [x, y] of the CRT control unit is output according to the number of rows and columns that can be displayed on the CRT 31. It is becoming more and more common. Here, assuming that the CRT 31 is capable of displaying 4 rows and 5 columns, the stored contents within the broken line frame 32A in FIG. 6 will be displayed on the CRT 31 as shown in FIG. 7E. To explain in detail, when the output y of the CRT control section is "1",
Output x is "1" → "2" → "3" → "4" →
The coordinates (1, 1) in the memory unit 32 change to “5”.
"Patent Cooperation Articles" memorized in (1, 5)
The information will be read out and displayed on the CRT 31. After this operation is completed, the output y becomes "2", and during this time the output x becomes "1" → "2" →...→
It changes to “5” and the information on “that article” changes to CRT3.
1 is displayed. Similarly, output [x,
y] is read out and displayed on the CRT 31. That is, the output [x, y] is not configured to constantly output a fixed value, but is configured to count a fixed value during a fixed time and repeat this count. In the above example, the output x is “1
→5" is repeated, and the output y is "1→
The count of 4 is repeated.

Between the CRT control section 33 and the memory section 32, addition sections 34 and 35 are inserted as scroll control sections, respectively, as shown in FIG. , C are added to the outputs [x, y], respectively. In detail, for example, the U/D counter 13A
Assuming that the value of the output C is "3", this value is added to the output x of the CRT control unit 33 and output. In the above example, the output x is “1→
5" is sequentially repeated, and "3" is added thereto, and "4→8" is sequentially repeatedly output from the adding section 34 and input into the memory section 32.
The same applies to the output y.

Finally, the overall operation of this embodiment will be explained based on FIGS. 1 to 7. Here, it is assumed that the stored contents of the memory unit 32 of the CRT display device 3 are the same as those shown in FIG. It is assumed that the solid line frame 32B in FIG. Furthermore, it is assumed that the scroll operation is as indicated by arrow P in FIG.

7A to 7D show the display of the CRT 31 over time during the operation described below.
In this figure, A indicates the initial display state, that is, the state in which the solid line frame 32B of FIG. 6 is displayed. In this state, the U/D counter 13
Outputs C and C of A and 13B are "10" and "12" respectively
This value is added to the output [x, y] of the CRT control section 33 by the adders 34 and 35 (see time _T1 in FIG. 5).

First, as described above, when the operator who is inputting characters normally touches the scroll key 5B (see Figure 2) with the input pen 6, the character input mode is switched to the scroll mode and , input of oscillator section 13C
_M2 changes from "L" to "H" level. Therefore, the oscillator section 13C doubles the number of pulses of the inputs E ₁ to E ₄ to output the outputs F ₁ to F ₄ .

Next, at time T ₄ (see FIG. 5), if the input pen 6 moves to the area of the key segment 7 of the coordinate information 45, 37, the output P ₁ of the detection unit 12
One pulse is output as . This pulse becomes the input E ₁ of the oscillator section 13C, and the output F ₁ is 2
This results in one pulse being output. As a result, the output C of the U/D counter 13A moves back by two, from "10" to "8". And this value is
This will be added to x of the output [x, y] of the CRT control unit 33. That is, "8" is added to the value of x, which changes from "1 to 5", resulting in "9 to 13". On the other hand, since there are no other outputs P ₂ , P ₃ , P ₄ of the detection unit 12, the output of the U/D counter 13B does not change at all. That is, among the outputs [x, y] of the CRT control unit 33, "12" is added to the value of y, which changes from "1 to 4", and remains at "13 to 16". Through the above operations, the contents stored in the memory section 32A at the coordinate x of "9→13" and the coordinate y of "13→16" are displayed on the CRT 31 as shown in FIG. 7B. Become. In other words, CRT31
This means that the display has been scrolled two columns to the right.

Next, if the input pen 6 operated by the operator moves to the area of coordinate information 45, 36 (see Fig. 2) at time _T5 , the output _P3 of the detection unit 12 (Figs. 3, 4) (see figure), a pulse is output (see figure 5). This pulse is converted into two pulses by the oscillator section 13C, and the U/D
The value of the output C of the counter 13B is moved backward by two. That is, the value of output C changes from "12" to "10". This value is added to y of the output [x, y] of the CRT control unit 33 by the addition unit 35, and the result is “1 → 4”.
"10" is added to the value of y, which changes as "11→
14". On the other hand, since the value of the output C of the U/D counter 13A does not change, the output of the adder 34 does not change. That is, among the outputs [x, y] of the CRT control unit 33, the value of x changes from "1 to 5" and "8" is added to it, so that it remains "9 to 13". As a result of the above operations, the contents stored in the memory section 32 at the coordinate x of "9→13" and the coordinate y of "11→14" are changed to the CRT 3 as shown in FIG. 7C.
1 will be displayed on top. In other words,
This means that the display on the CRT 31 has been scrolled two lines downward.

Next, at time T ₆ , if the input pen 6 reaches the area of the coordinate information 44, 36, the coordinate x in the memory unit 32 is set to "7→11" in the same way as at time T ₄ described above. , "11 → 14" as coordinate y
The contents stored in , as shown in Figure 7D,
Displayed on CRT31. In other words, CRT3
This means that the display number 1 has been scrolled two columns to the right.

Through the above operations from time T ₁ to T ₆ ,
The display on the CRT 31 has changed from the solid line frame 32B in FIG. 6 to the solid line frame 32C. That is, the input pen 6 on the operator's tablet 5
As the area of the key segment 7 changes due to the operation of
A scrolling operation of the display will be performed.

Next, among the above scroll operations, time T ₇
, the operator inserts the input pen 6 into the tablet 5.
When the input pen 6 is released from the input pen 6, the switch inside the input pen 6 changes from "ON" to "OFF". As a result, the inputs _R0 of the flip-flops 46, 46A, 46B, and 46C go from "H" to "L" level, and all are reset. As a result, all outputs Q also become "L" level. Therefore, the output of the detection unit 12
All of P ₁ to P ₄ and N ₁ to N ₃ are gone, and from then on, normal character input can be performed. In other words, the scroll mode is switched to the character input mode.

Input pen 6 to other scroll key 5A or 5C
If you touch the pen, you can perform the scrolling operation in exactly the same way as described above.
However, the speed of the scrolling operation relative to the amount of movement of the input pen 6 is 1 times and 3 times, respectively.

In the above embodiment, a case where display is performed in 4 rows and 5 columns is shown, but this is for explanation and is not necessarily limited to this. Furthermore, in the above embodiment, when displaying in the column direction, the display is performed one character at a time, but this is for explanation only, and in reality, for example, the display is performed one scanning line at a time. One character is completed by a plurality of scanning lines (for example, 5 scanning lines), and the information for each scanning line is stored in the memory section 3.
It is stored in 2. Even in such a case, if a plurality of scanning lines are treated as one unit, the scroll operation can be performed in the same manner as described above. Further, in the above embodiment, the case where scrolling is possible in any of the left, right, up, and down directions is exemplified, but scrolling may be performed only in any direction as necessary.

Further, in the above embodiment, a CRT display device is used as an example of a device that performs this type of display, but the present invention is not limited to this in any way. It may also be a device. moreover,
Although the scroll keys 5A, 5B, and 5C allow the scroll keys 5A, 5B, and 5C to select the same amount of scrolling of rows and columns, it may be configured such that modes in which the scrolling amounts of rows or columns are different can be selected.

As described above, according to the present invention, since the scroll operation is performed on the tablet screen, the operator can perform the scroll operation without operating the keyboard while holding the input pen. Since the scrolling operation is performed according to the amount of movement of the input pen, it is possible to freely scroll the required amount in either the left or right direction with a single operation, and it also corresponds to the movement of the input pen. Since the scrolling operation is performed while the operator is scrolling, it is possible to prevent operator malfunctions.Furthermore, the speed of the scrolling operation can be selected for each scrolling operation, and this selection and mode switching can be performed at the same time. By doing so, it is possible to change the speed of the scrolling operation as appropriate, which has the excellent effect of improving operability and allowing quick editing processing and the like.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing a tablet input device having a scroll control device according to the present invention;
FIG. 3 is an explanatory diagram showing an example of a tablet, FIG. 3 is a block diagram showing an example of the configuration of a scroll control device according to the present invention, and FIG. 4 is a block diagram showing an example of the configuration of the detection section of the scroll control device. , FIG. 5 is a diagram showing an example of the operating state of each part in FIGS. 3 and 4, FIG. 6 is an explanatory diagram showing an example of the storage contents of the memory section in the CRT display device, and FIGS. E is an explanatory diagram showing a display example of a CRT. 3... CRT display device as a display device, 5... Tablet, 5A, 5B, 5C... Scrolling segment, 6... Input pen, 11...
...tablet section, 12...detection section, 13...counter section as scroll control section, 32...memory, 34, 35...addition section as scroll control section, x, y...coordinates.

Claims (1)

[Claims] 1. A display device whose display scrolls, a tablet and an input pen provided with a plurality of scrolling segments, a detection unit that detects movement of the input pen on the tablet, and the scrolling segment of the input pen. in response to contact with one of the tablets, the operation of the tablet is switched to a scroll mode, and a value corresponding to the segment contacted at that time is selected from among different integer values preset for each of the scroll segments. a scroll control unit that multiplies the amount of movement of the input pen detected by the detection unit and scrolls the display in accordance with the value multiplied by an integer.