JPS59201089A - Cursor moving 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 (a) 1 Technical Field of the Invention The present invention relates to a cursor movement method, and more particularly to a method in which a microprocessor controls the movement of a cursor display position that indicates an input position on a CRT display device. be.

(b), Prior Art and Problems Figure 1 is a block diagram showing an example of the configuration of a display device from FFFI. , the display device DIs is composed of an image generation section A, a control section B, and an interface C. The control section B has a built-in microprocessor and has a function of controlling the image generation section A and the ink face C by programming.

Conventionally, as a method for moving a cursor on a display device, a method has often been adopted in which a code signal is sent by pressing a cursor movement key on a keyboard KEY.

In a display device using a code sending type keyboard, when the cursor movement key on the keyboard KEY is pressed, the keychain KEY sends a cursor movement code to the display device D■S, and the display device D
In IS, when a cursor movement code is detected, the cursor is moved one step in response. In order to move the cursor in multiple consecutive steps quickly and easily, many keyboards are equipped with a function that generates a cursor movement code at regular intervals when a cursor movement key is held down.

FIG. 2 is a diagram showing the relationship between cursor movement code generation timing and cursor displacement in the conventional system.

In FIG. 2, the ↑ mark represents the cursor movement code generation timing, the ◯ mark represents the displacement of the cursor, and the slope of the straight line corresponds to the cursor movement speed.

FIG. 3 is a flow chart of control when receiving a cursor movement code in the conventional system.

However, according to this method, the time interval for generating cursor movement codes is limited by the code sending speed, etc., so it is difficult to make it shorter than a certain time. When the cursor is segmented, the high speed of cursor movement is lost, which is inconvenient for the operator.

(C)0Object of the invention The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art,
The purpose is to realize faster cursor movement using the same keyboard as the conventional method.

(d) 0 Structure of the Invention According to the present invention, the above-mentioned object is provided with a code sending type keyboard which is provided with a cursor movement key and sends out a cursor movement code at fixed time intervals by continuously pressing the cursor movement key. In CRT display devices,
Detects the cursor movement code sent from the keyboard, and calculates 1/1 of the minimum sending time interval of the cursor movement code.
To provide a cursor movement method characterized by having a function of changing the display position of the cursor one step at a time interval of n, and changing the display position of the cursor n times for each BE of the cursor movement code. This is achieved by

(e) 0 Embodiments of the Invention The equipment configuration in the present invention is the same as that of the conventional device shown in FIG.

FIG. 4 illustrates the relationship between the ordering timing of the cursor movement code and the displacement of the cursor in one embodiment of the present invention. In FIG. 4, n=5 is shown as an example.

FIG. 5 is a flow chart of the operation according to the present invention.

According to the present invention, when the cursor movement key on the keyboard KEY is pressed, in response to the generation of the cursor movement code - times, one step is executed a total of n times at a time interval of 1/n of the time interval of the generation of the cursor movement code. Move the cursor position (n=5).

The present invention will be described in detail below with reference to FIGS. 4 and 5.

By continuing to press the cursor movement keys on the keyboard K F and Y, the control unit B receives the cursor movement code,
The operation starts according to the flowchart shown in FIG. The control section B first sends a signal to the image generation section A to move the cursor one step and display it on CR], then 0.
Check whether the cursor has moved 2 steps or not. If YES, the process ends; if No, further check whether 1/n of the cursor movement code generation time interval has elapsed, and then YES.
If S, return to the original position, and if No, repeat this operation again. At the same time, the control section B sends a position signal to the image generation section A in each step of the above flow chart to move and display the cursor on the CRT screen.

Of course, even if it is possible to achieve high-speed movement by moving the cursor multiple steps at a time in response to - times of cursor movement code generation, the cursor movement will be discrete and will give an unnatural impression, but the method of the present invention Since the cursor moves continuously, there is no unnaturalness like that, and the cursor can be moved at high speed.

(f) Effects of the Invention As described above in detail, the present invention has the great effect of realizing faster cursor movement using the same keyboard as the conventional method.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the configuration of a display device. FIG. 2 is a diagram showing the relationship between cursor movement code generation timing and cursor displacement in the conventional system. FIG. 3 is a flow chart of control when receiving a cursor movement code in the conventional system. FIG. 4 illustrates the relationship between the generation timing of the cursor movement code and the displacement of the cursor in one embodiment of the present invention. FIG. 5 is a flow chart according to the present invention. In the figure, CRT is a display device, KEY is a keyboard, DjS is a display device, and display device DIS is an image generating section A, a control section B, and an ink face C.
It consists of Ivy 3 m

Claims (1)

[Claims] In a CRT display device equipped with a coat sending type keyboard which is equipped with a cursor movement key and which sends out a cursor movement code at fixed time intervals by continuously pressing the cursor movement key, the cursor movement code is sent from the keyboard. is detected, and the cursor display position is changed one step at a time interval of 1/n of the minimum sending time interval of the cursor movement code, and the cursor display position is changed n times for each occurrence of the cursor movement code. A cursor movement method characterized by having a function to move the cursor.