JPS63124086A - Cursor control system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cursor control method for a device such as a word processor that is equipped with a keyboard and a display. The cursor moves by one character each time the cursor movement key is pressed, or the cursor moves by one character at fixed intervals while the cursor movement key is pressed.

[Problem that the invention seeks to solve]

The conventional cursor control method described above has a drawback in that it does not satisfy the operator's request for the cursor to gradually move faster if the cursor movement key is kept pressed.

[Means for solving problems]

The cursor control method of the present invention includes a means for detecting the press and press of a cursor movement key on a keyboard and determining whether the key is pressed, and an arbitrary measurement time that operates while the key is pressed. It has a settable timer, two means for advancing a cursor on a display by one character when the timer finishes measuring, and a means for setting successively smaller measurement times in the timer each time the timer finishes measuring.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a time chart showing an example of operation.

In FIG. 1, when a cursor movement key on a keyboard 1 is pressed, an identification signal of the key on the keyboard (7 bits if the number of keys is 100) is sent via an interface 11.
, a 1-bit signal indicating key depression/pressing, and a 1-bit pulse signal indicating a key state change (pressed state #pressed state) are held in the keyboard interface unit 2, and the C
Generates an interrupt signal to PU3. Due to the interrupt, the CPU 3 detects the depression of the keyboard, sets a clock value "'TI" to the timer 4 through the interface 13, and starts the timer.

When the timer completes timing, timer 4 to CPU 3
An interrupt is generated via the interface 14, and this interrupt causes the CPU 3 to issue a message to the display control unit 5.
An instruction is issued via the interface 15 to advance the cursor on the display 6 by one character, a measurement value that is shorter by α than the previously set measurement value is set for the timer 4, and the timer 4 is started again.

The above control is repeated until the depression of the cursor movement key on the keyboard 1 is detected. However, when the measured value for the timer 4 reaches a predetermined minimum value, that value is always set thereafter.

〔Effect of the invention〕

As explained above, the present invention can speed up the movement time of the cursor on the display according to the time the cursor movement key on the keyboard is pressed, and provides a cursor control method that is compatible with the psychology of the operator. can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a time chart showing the operation of the embodiment of FIG. 1...Keyboard, 2...Keyboard interface section, 3...CPU, 4...Timer, 5...
Display control unit, 6...Display. Guaranteed Z diagram

Claims (1)

[Claims] A means for detecting the pressing and pressing of a cursor movement key on a keyboard and determining whether the key is pressed, a timer that operates while the key is pressed and can set an arbitrary measurement time, and a timer for this timer. A cursor control method comprising means for advancing a cursor on a display by one character when measurement is completed, and means for setting successively smaller measurement times on the timer each time the timer ends measurement.