JP2715960B2 - Keyboard control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard control method for controlling a keyboard having a key repeat function, and more particularly to a method of controlling an up / down cursor key (cursor key for instructing a cursor to move upward or downward). Repeat function when one and one of the left and right cursor keys (cursor keys for instructing the movement of the cursor to the left or right) are simultaneously pressed (when the overlap of the pressing of the two cursor keys continues). The present invention relates to a keyboard control method for controlling a keyboard.

[0002]

2. Description of the Related Art A "key repeat function" in a keyboard control system is provided to improve the operability of a display device in an information processing system. Particularly, the “cursor key repeat function” is used to quickly move the cursor on the screen of the display device to a target position.

A conventional keyboard control system of this type (keyboard control system for a cursor key repeat function)
An example is described in JP-A-61-80319 (keyboard). Incidentally, the keyboard control method according to the keyboard described in this publication discloses a key code of two cursor keys at a constant time interval when two of the cursor keys in four directions of up, down, left, and right are continuously pressed. Are alternately transmitted, and the cursor can be moved in eight directions including an oblique direction. Here, the “constant time interval” that defines the key code transmission timing has the same value for both the up and down cursor keys and the left and right cursor keys.

[0004]

In the above-mentioned conventional keyboard control system, when two key codes are alternately sent to the information processing device at fixed time intervals when two cursor keys are continuously pressed. Since the "constant time interval" has the same value for the up and down cursor keys and the left and right cursor keys, the amount of movement of the cursor on the screen of the display device controlled by the information processing device (for one key code) When the amount of movement is different between the up and down direction and the left and right direction (generally, the amount of movement in the up and down direction is twice the amount of movement in the left and right direction), the cursor is moved at an angle of 45 degrees There is a problem that the cursor does not move (it is considered that there is a great demand for the keyboard operator to want the cursor to move obliquely 45 degrees in such a case). More generally, regardless of the direction of cursor movement requested by the keyboard operator, etc.
There has been a problem that the moving angle when the cursor moves in the oblique direction is determined depending on the "cursor moving amount" preset in the information processing apparatus.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide an oblique function when one of the up and down cursor keys and one of the left and right cursor keys are simultaneously pressed to move the cursor in an oblique direction.
It is an object of the present invention to provide a keyboard control method that allows a cursor to move in a direction of a desired angle such as 5 degrees and improves operability for moving the cursor to a target location.

[0006]

A keyboard control method according to the present invention comprises a display device, an information processing device for performing processing and displaying the processing result on a screen of the display device, and a four-way display for up, down, left and right.
In an information processing system including various keys including a cursor key for instructing movement of a cursor in a direction and a keyboard connected to the information processing apparatus, a repeat time interval of each of an up / down cursor key and a left / right cursor key A repeat time interval register for recording information, a key matrix for holding information indicating a state of pressing / pressing of various keys including a cursor key for instructing movement in four directions of up, down, left and right, a first repeat key and a second repeat key A repeat key register for recording information about a key, a repeat time interval receiving unit for receiving a repeat time interval of a cursor key from the information processing device and setting the repeat time interval in the repeat time interval register, and the repeat time interval Based on the information in the register and the information in the key matrix There, the first repeat key and the second
A key operation processing unit for setting information on the repeat key in the repeat key register, a timer for measuring the duration of pressing the cursor key, and an up / down cursor key based on the information in the repeat key register and the measurement by the timer. And a repeat key processing unit that adjusts the transmission timing of the key code and the transmission timing of the key codes of the left and right cursor keys so as to match a desired direction when the cursor moves diagonally, and the transmission timing by the repeat key processing unit. A key code transmitting unit that transmits key codes of various keys including the adjusted key codes of the cursor keys to the information processing apparatus.

[0007]

According to the keyboard control method of the present invention, a display device,
An information processing device that performs processing and displays the processing result on a screen of the display device, and various keys including a cursor key for instructing movement of a cursor in four directions, up, down, left, and right, are connected to the information processing device. In an information processing system including a keyboard, a repeat time interval register records the repeat time intervals of up / down cursor keys and left / right cursor keys, and a key matrix includes various keys including cursor keys for instructing movement in four directions, up, down, left and right. Hold information indicating the pressed / pressed state of the key, the repeat key register records information on the first repeat key and the second repeat key, and the repeat time interval receiving unit receives the repeat time interval of the cursor key from the information processing device. And set the repeat time interval in the repeat time interval register. Sets information relating to the first repeat key and the second repeat key in the repeat key register based on the information in the repeat time interval register and the information in the key matrix, and the timer measures the duration of pressing the cursor key, and The key processing unit sets the transmission timing of the key code of the up / down cursor key and the transmission timing of the key code of the left / right cursor key based on the information in the repeat key register and the measurement by the timer in a desired direction when the cursor moves diagonally. The key codes are adjusted to match, and the key code transmission unit transmits to the information processing apparatus the key codes of various keys including the key codes of the cursor keys whose transmission timing has been adjusted by the repeat key processing unit.

[0008]

Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the keyboard control system according to the present invention.

[0010] The keyboard control system of the present embodiment includes a keyboard 10, an information processing device 20, and a display device 30.

The keyboard 10 includes a repeat time interval receiving unit 11 for receiving a repeat time interval (including a repeat start time interval) of a cursor key from the information processing device 20;
A repeat time interval register 12 for recording the repeat time interval, and information on the first repeat key and the second repeat key based on the information in the repeat time interval register 12 and the information in the key matrix 14 are stored in the repeat key register 16. Holds the key operation processing unit 13 to be set and information indicating the state of various keys (including cursor keys) (the state of pressing / pressing the key, that is, the state regarding whether the key is pressed or not pressed). Key matrix (also referred to as a key table) 14 and a key code transmitting unit 15 for transmitting a key code to the information processing apparatus 20.
A repeat key register 16 for recording information on the first repeat key and the second repeat key set by the key operation processing unit 13, and a repeat key register 1
6. Based on the information in 6 and the measurement by the timer 18, the cursor key repeat processing (the transmission timing of the key code of the up / down cursor key and the transmission timing of the key code of the left / right cursor key is performed in a desired direction when the cursor moves obliquely And a timer 18 for measuring the time required by the repeat key processing unit 17 (continuation time of pressing the cursor key).

FIG. 2 is a view showing an arrangement of cursor keys for instructing the movement of the cursor in four directions of up, down, left, and right on the keyboard 10.

FIG. 3 is a diagram showing the recorded contents of the repeat time interval register 12 in FIG.

The repeat time interval register 12 stores a repeat time interval corresponding to the amount of cursor movement when the cursor on the screen of the display device 30 moves up and down during key operation (when the up and down cursor keys are continuously pressed). Time interval when the key code is repeatedly transmitted to
And a repeat time interval according to the amount of movement of the cursor when the cursor moves in the left and right direction (the time interval of the repetition when the key code is repeatedly transmitted when the left and right cursor keys are kept pressed). Are recorded individually.

The information processing device 20 determines that the "up / down" repeat time interval and the "left / right" repeat time interval in the repeat time interval register 12 are one.
Display device 3 when one key code (one of the key codes of the up / down cursor key and the left / right cursor key) is received.
A repeat time interval proportional to the amount of movement of the cursor on the screen 0 in the vertical or horizontal direction (the amount of movement of the cursor is preset in the information processing system) is transmitted from the information processing device 20. Is set.

FIG. 4 shows the repeat key register 1 shown in FIG.
6 is a diagram showing recorded contents of No. 6. FIG.

The cursor key (first repeat key and second repeat key) kept pressed by the key operation processing unit 13 in the repeat key register 16 corresponds to the key code of the cursor key and the cursor key. Repeat time intervals are recorded. The present invention can be realized by using information in the repeat time interval register 12 even if there is no information indicating the repeat time interval.

FIG. 5 is a flowchart showing the processing of the key operation processing unit 13 in FIG. This processing includes a cursor key press / press up determination step 501, a first repeat key presence / absence determination step 502, a first repeat key key code setting step 503, and a pressed key determination step 504.
A first repeat key vertical repeat time interval setting step 505, a first repeat key horizontal repeat time interval set step 506, a pressed key code transmission step 507, and a second repeat key presence / absence determination step 50
8 and the second repeat key key code setting step 50
9, a pressed key determination step 510, a second repeat key vertical repeat time interval setting step 511,
It comprises a second repeat key horizontal repeat time interval setting step 512, a push-up key determination step 513, a first repeat key update step 514, and a second repeat key clear step 515.

FIG. 6 shows a repeat key processing unit 17 shown in FIG.
6 is a flowchart showing the processing of FIG. This process includes a first repeat key presence / absence determination step 601, a first repeat key repeat determination step 602, a repeat time interval arrival determination step 603, a repeat start time interval arrival determination step 604, a key code transmission / timer reset. Step 605, setting during repeat / key code transmission / timer reset step 606, second repeat key presence / absence decision step 607, second repeat key repeat decision step 608, repeat time interval arrival decision step 609, start of repeat Time interval arrival determination step 61
0, key code transmission / timer reset step 611
And setting during repeat, key code transmission, and timer reset step 612.

FIGS. 7 to 9 are diagrams for explaining the specific operation of the keyboard control system according to the present embodiment.

Next, the operation of the keyboard control system according to the embodiment having the above-described configuration will be described.

First, referring to FIG. 5, a key operation processing unit 1 will be described.
Operation 3 will be described.

When no cursor key is pressed,
When the cursor key is pressed, the key operation processing unit 1
3 performs the following processing (see steps 501 to 507).

In step 501, "press cursor key"
(Recognition based on the reference to the key matrix 14). When it is recognized in step 502 that "the first repeat key does not exist (there is no cursor key being pressed at that time)", the key is pressed. The key code of the cursor key is set as the key code of the first repeat key in the repeat key register 16 (step 50).
3).

Next, it is determined whether the pressed cursor key is an up / down cursor key or a cursor key other than the up / down cursor key (left / right cursor key) (step 5).
04).

If it is determined in step 504 that the pressed cursor key is an up / down cursor key,
The "up / down" repeat time interval is taken out from the repeat time interval register 12, and the repeat time interval is set as the repeat time interval of the first repeat key in the repeat key register 16 (step 505).

If it is determined in step 504 that the pressed cursor key is a cursor key other than the up / down cursor keys, the "left / right" repeat time interval is taken out of the repeat time interval register 12 and the repeat time is read. The interval is set as the repeat time interval of the first repeat key in the repeat key register 16 (step 506).

When the processing of step 505 or 506 is completed, the key code of the pressed cursor key (pressed key code) is sent to the key code transmitting unit 15 (the key code transmitting unit 15 processes the pressed key code for information processing). (Send to the device 20) (Step 507).

When one cursor key is pressed and another cursor key is pressed, the key operation processing unit 13 performs the following processing (step 5).
01, 502, and 507-512).

In step 501, "press cursor key"
(Recognition is performed based on the reference to the key matrix 14). In steps 502 and 503, it is determined that "the first repeat key exists and the second repeat key does not exist (the cursor key pressed at that time is 1). ), The key code of the cursor key pressed later is set as the key code of the second repeat key in the repeat key register 16 (step 50).
9).

Next, it is determined whether the pressed cursor key (cursor key pressed later) is an up / down cursor key or a cursor key other than the up / down cursor key (left / right cursor key) (step 510).

If it is determined in step 510 that the pressed cursor key is an up / down cursor key,
The "up / down" repeat time interval is taken out from the repeat time interval register 12, and the repeat time interval is set as the repeat time interval of the second repeat key in the repeat key register 16 (step 511).

If it is determined at step 510 that the pressed cursor key is a left / right cursor key,
The repeat time interval in the "left and right direction" is taken out from the repeat time interval register 12, and the repeat time interval is set as the repeat time interval of the second repeat key in the repeat key register 16 (step 512).

When the process of step 511 or 512 is completed, the key code of the pressed cursor key (pressed key code) is sent to the key code transmitting unit 15 (the key code transmitting unit 15 processes the pressed key code for information processing). (Send to the device 20) (Step 507).

Further, when the cursor key is pushed up, the key operation processing unit 13 performs the following processing (see steps 501 and 513 to 515).

In step 501, "press the cursor key"
Is recognized, it is determined whether the pushed cursor key (push-up key) is a first repeat key, a second repeat key, or a key other than the repeat keys (the first repeat key and the second repeat key) (step). 513).

If it is determined in step 513 that the "push-up key is the first repeat key", the information of the second repeat key in the repeat key register 16 is set as the information of the first repeat key (step 514). Then, the information of the second repeat key is cleared (step 515).

If it is determined in step 513 that the "push-up key is the second repeat key", the information of the second repeat key in the repeat key register 16 is cleared (step 515).

As described above, the information of the push-up key can be cleared from the repeat key register 16.

In step 513, the message "Push-up key is first
Is not a repeat key or a second repeat key ", the process is terminated without performing anything.

By the processing of the key operation processing unit 13, the key code of the cursor key and the repeat time interval are recorded in the repeat key register 16 for up to two cursor keys that are kept pressed. Become.

Second, the operation of the repeat key processing section 17 will be described with reference to FIG.

The repeat key processing unit 17 performs the following processing on the first repeat key and the second repeat key whose information is recorded in the repeat key register 16.

First, at step 601 or 607, the n-th
When the presence of a repeat key (n is 1 or 2) is recognized,
Whether or not the n-th repeat key is being repeated (steps 606 and 61 regarding the setting of “repeat”)
2) is checked (determined) (step 602 or 608).

If it is determined in step 602 or 608 that "the n-th repeat key is not being repeated", it is determined whether or not the pressing duration of the n-th repeat key has reached the repeat start time interval (step 604). Or 61
0). Note that the pressing time of the n-th repeat key is measured by the timer 18.

If it is determined at step 604 or 610 that "the duration of pressing the n-th repeat key has reached the repeat start time interval", the n-th repeat key is set to "during repeat" and the n-th repeat key is set. Is transmitted to the key code transmitting unit 15 (the key code transmitting unit 15 transmits the key code to the information processing device 20), and the pressing duration of the n-th repeat key measured by the timer 18 is reset. (Step 606 or 61
2).

If it is determined in step 602 or 607 that the "n-th repeat key is being repeated", it is determined whether or not the duration of pressing the n-th repeat key has reached the repeat time interval (step 602). 603 or 609).

In step 603 or 609, "the duration of pressing the n-th repeat key has reached the repeat time interval"
Is determined, the key code of the n-th repeat key is transmitted to the key code transmitting unit 15 (the key code transmitting unit 15).
Transmits the key code to the information processing apparatus 20), and resets the pressing duration of the n-th repeat key measured by the timer 18 (step 605 or 61).
1).

In this manner, every time the pressing duration of the n-th repeat key during the repeat reaches the repeat time interval, the key code of the n-th repeat key is changed to the information processing device 20.
Sent to.

As described above, for each of the two repeat keys, the key code is transmitted to the information processing device 20 each time the repeat time interval recorded in the repeat time interval register 12 is reached, so that the cursor is tilted. The moving direction at the time of moving can be adapted to the direction of a desired angle (such as 45 degrees).

Third, a specific operation of the keyboard control system of this embodiment will be described with reference to FIGS.
Here, it is assumed that the target is to move the cursor obliquely 45 degrees by pressing two cursor keys, one of the up and down cursor keys and one of the left and right cursor keys.

The general information processing apparatus 20 receives a key code of one cursor key, and displays a cursor based on the key code. The cursor is moved by 8 dots, and the cursor is moved by 16 dots in the vertical direction based on the pressing of the up and down cursor keys. Correspondingly, in the keyboard control method of the present embodiment, the repeat time interval register 1
In FIG. 2, 8 ms is recorded as a repeat time interval when the cursor on the screen moves in the left-right direction, and 16 m is recorded as a repeat time interval when the cursor moves in the vertical direction.
s shall be recorded (see FIG. 7).

It is assumed that the repeat start time interval of the cursor key is 500 ms.

First, consider the processing of the key operation processing unit 13 when the right cursor key is pressed when no cursor key is pressed.

In this case, since the repeat time interval corresponding to the right cursor key is 8 ms, which is the repeat time interval in the “left and right direction” (see FIG. 7), the entry for the first repeat key in the repeat key register 16 The “right cursor key” (key code of the right cursor key) is recorded (set) in the key code in the middle, and “8 ms” is recorded in the repeat time interval in the entry. Further, the key code is transmitted to the key code transmission unit 15.

Next, consider the processing of the key operation processing unit 13 when the down cursor key is pressed while the right cursor key is kept pressed.

In this case, since the repeat time interval corresponding to the down cursor key is 16 ms which is the "up / down" repeat time interval (see FIG. 7), the entry for the first repeat key in the repeat key register 16 is entered. “Down cursor key” (the key code of the down cursor key) is recorded in the middle key code, and “16 ms” is recorded in the repeat time interval in the entry. Further, the key code is transmitted to the key code transmission unit 15.

As a result, information as shown in FIG. 8 is recorded in the repeat key register 16.

Further, consider the processing of the repeat key processing unit 17 when the pressing of the right cursor key and the down cursor key as described above is continued.

In this case, the repeat key processing unit 17
Based on the information recorded in the repeat key register 16, as the processing related to the right cursor key, the key code of the right cursor key is transmitted 500 ms after the start of pressing the right cursor key, and the pressing duration is 8 ms thereafter.
The key code is sent out each time. In addition, as the processing relating to the down cursor key, the key code of the down cursor key is transmitted 500 ms after the start of the depression of the down cursor key, and the key code is transmitted every time the pressing duration time elapses 16 ms. These key codes are transmitted to the information processing device 20 via the key code transmission unit 15.

FIG. 9 shows the contents of the repeat key register 16 and the keys transmitted to the information processing device 20 when the above key operation is performed (when the operation of keeping the right cursor key and the down cursor key pressed is performed). Code (Sending key code)
And the transmission time interval (the timing of transmission from the repeat key processing unit 17 to the key code transmission unit 15).

As shown in FIG. 9, the key code of the right cursor key is transmitted once every 8 ms and the key code of the down cursor key is 16 ms by the above key operation.
The key code is transmitted at a single transmission timing. Therefore, the cursor on the screen of the display device 30 is
Move 8 dots to the right every 8 ms, and move 16 dots down
It moves 16 dots every ms. As a result, on the screen of the display device 30, the cursor moves obliquely at an angle of 45 degrees to the lower right.

[0063]

As described above, according to the present invention, since the repeat time interval can be individually set for each of the up and down cursor keys and the left and right cursor keys, one of the up and down cursor keys and one of the left and right cursor keys can be simultaneously set. When the cursor is moved in an oblique direction when the button is continuously pressed, the cursor can be moved at a desired angle (the highest demand is considered to be an angle of 45 degrees),
This has the effect that the operability for moving the cursor to the target location can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a keyboard control system according to the present invention.

FIG. 2 is a diagram showing an arrangement of cursor keys on the keyboard in FIG. 1;

FIG. 3 is a diagram showing recorded contents of a repeat time interval register in FIG. 1;

FIG. 4 is a diagram showing recorded contents of a repeat key register in FIG. 1;

FIG. 5 is a flowchart showing a process of a key operation processing unit in FIG. 1;

FIG. 6 is a flowchart showing processing of a repeat key processing unit in FIG. 1;

FIG. 7 is a diagram for explaining a specific operation of the keyboard control method shown in FIG. 1;

FIG. 8 is a diagram for explaining a specific operation of the keyboard control method shown in FIG. 1;

FIG. 9 is a diagram for explaining a specific operation of the keyboard control method shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Keyboard 11 Repeat time interval receiving part 12 Repeat time interval register 13 Key operation processing part 14 Key matrix 15 Key code transmission part 16 Repeat key register 17 Repeat key processing part 18 Timer 20 Information processing device 30 Display device

Claims (4)

(57) [Claims] 1. A display device, an information processing device for performing processing and displaying the processing result on a screen of the display device, and various keys including a cursor key for instructing movement of a cursor in four directions of up, down, left, and right. An information processing system comprising a keyboard connected to the information processing apparatus, a repeat time interval register for recording a repeat time interval of each of an up / down cursor key and a left / right cursor key, and movement in four directions of up / down / left / right A key matrix for holding information indicating the pressed / pressed state of various keys including a cursor key for instructing the operation, a repeat key register for recording information on the first repeat key and the second repeat key, and a cursor from the information processing device. Receiving a key repeat time interval and storing the repeat time interval in the repeat time interval register A repeat time interval receiving unit to be set; and a key operation for setting information on a first repeat key and a second repeat key in the repeat key register based on information in the repeat time interval register and information in the key matrix. A processing unit, a timer for measuring the duration of pressing of a cursor key, and a transmission timing of key codes of up / down cursor keys and a key code of left / right cursor keys based on information in the repeat key register and measurement by the timer. A repeat key processing unit that adjusts the transmission timing to match a desired direction when the cursor moves diagonally; and keys of various keys including a key code of a cursor key whose transmission timing is adjusted by the repeat key processing unit. Key code transmission for transmitting a code to the information processing device Keyboard control method characterized by having and. 2. The keyboard control method according to claim 1, wherein the repeat key register records a key code and a repeat time interval for the first repeat key and the second repeat key. 3. The system according to claim 1, wherein the desired direction when the cursor moves obliquely is a direction at an angle of 45 degrees.
Alternatively, the keyboard control method according to claim 2. 4. A repeat time interval register, a key matrix, a repeat key register, a repeat time interval reception unit, a key operation processing unit, a timer, a repeat key processing unit, and a key code transmission unit are realized in a keyboard. The keyboard control method according to claim 1, 2 or 3.