JPH0578047B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a repeat interval control method suitable for input processing of key input information from a keyboard having repeatable keys.

[Technical background of the invention and its problems]

Generally, the repeat interval of repeatable keys has been the same regardless of the type of key. For this reason, for example, as shown in Figure 1, there are 25 lines in the vertical direction and 80 lines in the horizontal direction.
When moving the cursor by repeating it vertically on a horizontally long display screen of a column, and when moving it horizontally, if the repeat interval is the same (for example, 10 keys/second) as described above, the horizontal There were times when the cursor movement felt extremely slow.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a repeat interval control method that can change the repeat interval of repeatable keys for each key.

[Summary of the invention]

The present invention uses a table in which numerical information specifying the number of key input information to be stored in the key buffer when stored in the key buffer is registered corresponding to the key input information of various repeatable keys. If it is detected that a repeat operation regarding the same key is required by reading the key input information at regular intervals, specify with the above numerical information in the table that corresponds to the read key input information. The present invention is characterized in that the number of pieces of key input information is stored in the key buffer at predetermined time intervals, thereby making it possible to change the repeat interval for each key.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 2 shows the main configuration of a terminal device to which the present invention is applied, in which 21 is a keyboard having various keys (not shown) including repeatable keys, and 22 is a keyboard controller (hereinafter referred to as
(referred to as KBC). 23 is a key register (hereinafter referred to as KRG) in which the key code (key data, key input information) of the key detected by KBC22 is stored.
24 is KBUF (hereinafter referred to as KBUF), 24 is KBUF
). The data (key code) from the KRG 23 is stored in the KBUF 24 until it is displayed on a display device (not shown).
25 is a CPU, and 26 is a timer. The CPU 25 can know the interval of the timer 26 by an interrupt from the timer 26. Reference numeral 27 denotes a table in which numerical information specifying the repeat interval, for example, an initial setting value for a counter (not shown) determining the repeat interval, is registered corresponding to the key code of each repeatable key. In addition, table 2
K1, K2, . . . Kn shown within 7 are key codes, and numerical values 10, 5, . . . 10 are initial setting values.

Next, the operation of one embodiment of the present invention will be explained with reference to the flowchart of FIG. The KBC22 performs a key scan on the keyboard 21 at predetermined time intervals, and converts the key code of the detected key to the KRG2.
Set the number to 3. The CPU 25 reads the contents of the KRG 23 at the interrupt timing from the timer 26 at regular intervals (step S1). CPU25 is KRG
23 is the same as the previous read data (step
S2). If the judgment in step S2 is NO,
The CPU 25 determines whether the data is from a repeatable key (step S3). step
If the judgment in S3 is YES, CPU25 is
An initial setting value (first type initial setting value) specifying an interval until the start of repeat is set in a counter (not shown) inside 25 (step S4). These setting values can be freely selected and designated by the program. Next, CPU25 reads the contents of KRG23 as KBUF.
24 (step S5) and proceed to other processing routines.

Then, when there is another interrupt from timer 26,
The CPU 25 sequentially executes steps S1 and S2.
At this time, if the same key code as last time is set in KRG23, the judgment in step S2 is
The determination is YES, and the CPU 25 executes step S6. This step S6 is the step S3 described above.
Similarly, this is a step for determining whether the data is from a repeatable key. If the determination in step S6 is YES, the CPU 25 decrements the counter by 1 (step S7). next
The CPU 25 determines whether the contents of the counter are 0 or not (step S8), and if the determination is NO, the process proceeds to another processing routine. And timer 26
When the next interrupt occurs, the process returns to step S1. Therefore, even after the initial setting value (first type initial setting value) is set in the counter in step S4, as long as a key code from the same repeatable key is detected, the counter will not interrupt the interrupt (timer). (interrupt) is decremented each time.

When the contents of the counter become 0, the determination in step S8 becomes YES, and the CPU 2
Step 5 sets an initial setting value (second type initial setting value) for determining the repeat interval in the counter (step S9). This initial setting value is obtained by indexing the table 27 using the key code read from the KRG 23 as index data. Next, the CPU 25 executes step S5,
The contents of KRG23 are stored in KBUF24 and the process proceeds to other processing routines. Then, when the next interrupt is received from the timer 26, the CPU 25 executes the above step S1.
Return to execution. Therefore, even after the initial setting value (type 2 initial setting value) is set in the counter in step S9, as long as a key code from the same repeatable key is detected, the counter is decremented every time a timer interrupt occurs. be done. In this way, when the content of the counter becomes 0, the initial setting value obtained from the table 27 is set in the counter as described above, and then the content of the KRG 23 is stored in the KBUF 24. As is clear, the time interval at which the same key code is stored in the KBUF 24, that is, the repeat interval, is the interrupt interval from the timer 26 (timer interrupt interval) x the initial setting value (type 2 initial setting value). .
For example, if the timer interrupt interval is 10 msec and the counter is set to 10 in step S9, then
The repeat interval is 0.1 seconds, and the corresponding key is repeated at 10 keys/second. If you want to double this repeat speed, just set 5 in the counter.

In the above embodiment, the table 27 was described as a table in which numerical information specifying the repeat interval (initial setting value for the counter) is registered corresponding to the key codes of various repeatable keys. , the KBUF 24 may be a table in which numerical information indicating the number of key codes to be stored at one store timing is registered corresponding to various key codes. In this case, the control operation of the CPU 25 will also be partially different from the above embodiment. Regarding this, although the configuration is partially different from the above embodiment as described above, the second embodiment is explained for convenience.
This will be briefly explained using the block diagram shown in the figure and the flowchart shown in FIG. In addition,
In FIG. 4, the same steps as those shown in the flowchart of FIG. 3 are given the same reference numerals. The control operation of the CPU 25 differs from the above embodiment in the step of determining whether or not the contents of the counter have reached 0 (step S8).
If the determination is YES, a common initial setting value (type 3 initial setting value) is set in the counter regardless of the key detection content (key code) (step S9'). A further difference in the control operation of the CPU 25 from the above embodiment is that the control operation is performed after it is detected that the content of the counter becomes 0 and the above-mentioned initial setting value is set in the counter.
This is a store operation to the KBUF24. That is,
After setting the initial setting value (type 3 initial setting value) in the counter in step S9', the CPU 25 sets the initial setting value (type 3 initial setting value) in the counter.
The number of key codes having the contents of 3 is stored in the KBUF 24 in the number unique to the key codes (step S5'). This number, that is, the number of key codes to be stored in the KBUF 24 at one store timing, can be obtained by indexing the table 27 using the key codes read from the KRG 23 as index data.

In this way, in the above embodiment in which the time interval of the store timing to the KBUF 24 can be changed for each key, the time interval of the store timing to the KBUF24 can be changed for each key.
The number of key codes stored in the KBUF 24 was one (fixed), but in this embodiment, where the time interval between store timings to the KBUF 24 is constant, the number of key codes stored in the KBUF 24 at one store timing is reduced. can be changed for each key. Therefore, table 2 for the corresponding key
For example, if the numerical information (number of stored items) specified in 7 is 2, two key codes of the relevant key are stored in the KBUF 24 at one store timing. In this case, compared to a key in which one key code is stored at one store timing, a repeat speed substantially twice as high can be obtained even if the time interval of store timings is the same.

Although these embodiments have been described assuming that the counter is decremented, it is also possible to increment the counter. In this case, the initial setting value is set in a register, for example, and then the counter is incremented at each timer interrupt.
It is only necessary to determine whether the contents of the counter match the contents of the register.

Further, the present invention is applicable not only to terminal devices but also to general information processing equipment, such as personal computers, in which key input can be performed while visually viewing a display screen.

〔Effect of the invention〕

As detailed above, according to the present invention, when the same repeatable key is operated, key input information corresponding to the number of keys is stored in the key buffer at fixed time intervals. , the repeat interval of repeatable keys can be changed for each key.

[Brief explanation of drawings]

Figure 1 shows the general display screen configuration, Figure 2 shows the general display screen configuration.
The figure is a block diagram showing one embodiment of the present invention, FIG. 3 is a flowchart for explaining the operation of the above embodiment, and FIG. 4 is a flowchart for explaining the operation of another embodiment of the present invention. It's a chat. 21...keyboard, 24...key buffer (KBUF), 25...CPU, 27...table.

Claims (1)

[Claims] 1 A keyboard, a key buffer in which key input information from this keyboard is stored, and numerical information specifying the number of pieces of the above key input information to be stored at the timing of storage in this key buffer as key input information of various keys that can be repeated. Read the correspondingly registered tables and key input information from the keyboard at a first fixed time interval,
means for detecting whether the same repeatable key is being operated; and if the means detects that the same repeatable key is being operated, the read key input; A repeat interval control method comprising means for storing a number of key input information specified by the numerical information in the table corresponding to the information in the key buffer at second fixed time intervals.