JPH057337A - Video image movement control device - Google Patents

Abstract

PURPOSE:To facilitate moving operation in very short distance, and in addition, to execute even long-distance movement in a short time by providing a display control part with a video image moving direction deciding part and a moving amount designating means. CONSTITUTION:A moving direction input part 5 is provided with a switch directed up and downward and right and leftward, and the moving amount designating part 6 detects movement continuation time, and designates successively the video image moving amount of a display part 1 so as to increase gradually in accordance with the continuation time. The display control part 7 moves a video image being displayed to a moving direction the moving direction deciding part 3 decides in conformity to the moving amount the designating part 6 designates. The initial value of a set moving amount is selected so as to be a small value in order to facilitate operation for moving the video image in the very short distance. A video signal is moved to a designated direction till the stop of the signal, and an integrated moving amount increases gradually with the lapse of time. Through this configuration, the control of video image movement in which the moving operation of the very short distance is easy and the movement of the long distance is quick can be executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video image movement control device for moving a video image displayed on a screen of a display unit in a designated direction.

[0002]

2. Description of the Related Art FIG. 5 is a functional block diagram showing a conventional video image movement control device. In the figure, 1 is a display unit for displaying a video image on its screen, and 2 is a moving direction input unit for inputting a signal for designating a moving direction of the video image displayed on the display unit 1. is there.

Reference numeral 3 denotes a moving direction determination unit for determining the moving direction of the video image displayed on the display unit 1 on the screen of the display unit 1 from the signal input from the moving direction input unit 2. Is a display control unit that moves the video image displayed on the screen of the display unit 1 in the movement direction determined by the movement direction determination unit 3.

Next, the operation will be described. Here, FIG.
7 is a flowchart showing the flow of the operation, and FIG. 7 is an explanation showing the relationship between the presence / absence of a movement direction instruction signal from the movement direction input unit 2 and the cumulative movement amount of the video image displayed on the screen of the display unit 1. It is a figure.

Now, in order to move the video image displayed on the screen of the display unit 1, at the time t ₁ shown in FIG. 7, the operator sends a signal for instructing the moving direction from the moving direction input unit 2. It is assumed to be entered.

This signal is detected by the moving direction judging unit 3 in step ST1, the moving direction is judged in step ST2, and is notified to the display control unit 4. In step ST3, the display control unit 4 that has received the notification moves the video image displayed on the screen of the display unit 1 in the notified moving direction by a predetermined amount.

After that, the process proceeds to step ST4, and the movement direction determination unit 3 checks whether or not the signal instructing the movement direction from the movement direction input unit 2 continues. If the signal continues, the process is returned to step ST2 and the subsequent processes are repeated.

As a result, the video image displayed on the display unit 1 continues to move in the designated direction until the signal stops, and the accumulated movement amount increases linearly as shown in FIG. go.

When the signal indicating the moving direction is stopped at time t ₂ shown in FIG. 7, the process is returned from step ST4 to step ST1 until a signal indicating a new moving direction is input at time t ₃ . Enter the waiting state.

[0010]

Since the conventional video image movement control device is configured as described above, the display unit 1
On the screen of, the video image moves in the specified moving direction at a constant speed, it takes a long time to move a long section, and the moving speed was increased to shorten the moving time. In this case, there is a problem in that it is extremely difficult to operate the movement direction input unit 2 for moving the minute section.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a video image movement control device which is easy to operate for movement of a minute section and can be moved for a long time in a short time. To aim.

[0012]

In the video image movement control device according to the present invention, the moving direction input section is formed by a plurality of switches corresponding to the moving direction, and the moving direction input section is operated according to the operation duration of the switch. A moving amount designating unit that sequentially designates the moving amount of the video image is provided so that the moving direction is determined by the moving direction determining unit in the display control unit. It has a function of moving the video image displayed on the screen of the display unit according to the moving amount.

[0013]

According to the present invention, the display control unit causes the video image displayed on the screen of the display unit to move in the moving direction determined by the moving direction determining unit, and the moving amount designating unit continuously operates the switch in the moving direction input unit. Realizing a video image movement control device that is easy to operate for movement of a minute section and can move a long section in a short time by moving according to a movement amount that is sequentially specified to gradually increase with time. ..

[0014]

EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram showing an embodiment of the present invention, and FIG. 2 is a hardware configuration diagram thereof. In the figure, reference numeral 1 is a display unit, and 2 is a movement direction determination unit, which are the same as or equivalent to those of the conventional one denoted by the same reference numeral in FIG.

Reference numeral 5 denotes a moving direction input section corresponding to the one designated by reference numeral 2 in FIG. 5, which is formed by a plurality of switches associated with each moving direction. For example, 51 is a switch associated with an upward movement, 52 is a downward direction, 53 is a leftward direction, and 54 is a switch associated with a rightward direction.

Reference numeral 6 detects the operation duration of each of the switches 51 to 54 in the movement direction input section 5, and moves the video image on the screen of the display section 1 so as to gradually increase in accordance with the operation duration. This is a movement amount designation unit that sequentially designates the amount.

Reference numeral 7 is a point for moving the video image displayed on the screen of the display unit 1 in the moving direction determined by the moving direction determining unit 3 according to the moving amount designated by the moving amount designating unit 6. Thus, the display control unit is different from that shown by reference numeral 4 in FIG.

Reference numeral 8 in FIG. 2 is arranged between the moving direction input unit 5 and the display unit 1, and the functions of the moving direction judging unit 3, the moving amount designating unit 6 and the display control unit 7 are realized by software. It is a microcomputer that realizes.

In this microcomputer 8,
Reference numeral 81 is an input circuit that receives a signal from the moving direction input unit 5, 82 is a processor (CPU) that executes processing for realizing the functions of the above-described respective units, 83 is a memory that stores a program for that, and 84 is a processing result. Is an output circuit that controls the display of the display unit 1 based on the.

Next, the operation will be described. Here, FIG.
4 is a flowchart showing the flow of the operation, and FIG. 4 is an explanatory diagram showing the relationship between the presence / absence of a switch operation of the moving direction input unit 2 and the integrated moving amount of the video image displayed on the screen of the display unit 1. ..

First, in step ST11, the movement amount designated first by the movement amount designation section 6 is initialized, and then in step ST12, the switch 5 of the movement direction input section 2 is set.
A waiting state for detection of the operations 1 to 54 is entered. The initial value of the movement amount set at this time is selected to be a small value in order to facilitate the operation for moving the video image in the minute section.

Here, as in the conventional case, in order to move the video image displayed on the screen of the display unit 1,
When the operator operates any of the switches 51 to 54 of the moving direction input unit 2 at time t ₁ shown in FIG. 4,
The operation signal is detected by the moving direction determination unit 3 in step ST12.

In step ST13, the moving direction judging unit 3 judges the moving direction of the video image based on the operation signal, and notifies the display control unit 4 of the judgment result. In step ST14, the display control unit 4 that has received the notification displays the display unit 1
The video image on the screen is moved in the notified moving direction by the moving amount initially set in the moving amount designating unit 6.

Next, the movement amount designating section 6 updates the designated movement amount in step ST15 and increases it by a predetermined value. After that, in step ST16, the moving direction determination unit 3 checks whether or not the switches 51 to 54 of the moving direction input unit 2 are still operated, and if they are still operated, the process proceeds to step ST13. And the subsequent processing is repeated.

As a result, the video image displayed on the display unit 1 continues to move in the designated direction until the signal stops, and the rate of change of the cumulative movement amount thereof changes with time as shown in FIG. It gradually increases.

When the signal indicating the moving direction is stopped at time t ₂ shown in FIG. 4, the process proceeds to step ST16.
Returning to step ST11 from after moving amount specified by the displacement setting section 6 is returned to the initial value, enter a state of waiting until a new switching operation at time t ₃ at step ST12 is performed.

Example 2. In the above embodiment, the moving direction input unit 2 is formed by the four switches 51 to 54 for up, down, left and right, and the video image is two-dimensionally moved. However, two switches corresponding to the front and rear direction are further provided. It may be added, and thereby a video image movement control device capable of moving a video image three-dimensionally can be realized.

[0028]

As described above, according to the present invention, the video amount displayed on the screen of the display unit is moved in the movement direction determined by the movement direction determination unit, and the movement amount designation unit is operated by the movement direction input unit. Since the switch is configured to move in accordance with the movement amount that is sequentially specified so as to gradually increase according to the operation duration of the switch, the operation for the movement of a minute section is easy and the movement of a long section can be performed in a short time. Since the video image movement control device can be obtained and the movement direction input portion is formed by the switch, there is an effect that the device cost can be reduced.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a video image movement control device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a hardware configuration of the above embodiment.

FIG. 3 is a flowchart showing the flow of the operation.

FIG. 4 is an explanatory diagram showing the relationship between the presence / absence of a switch operation of the moving direction input unit and the integrated moving amount of the video image displayed on the display unit.

FIG. 5 is a functional block diagram showing a conventional video image movement control device.

FIG. 6 is a flowchart showing the flow of the operation.

FIG. 7 is an explanatory diagram showing the relationship between the presence / absence of an instruction signal from the movement direction input unit and the integrated movement amount of the video image displayed on the display unit.

[Explanation of symbols]

 1 display unit 3 movement direction determination unit 5 movement direction input unit 6 movement amount designation unit 7 display control unit

Claims (1)

Claims: 1. A display unit for displaying a video image on a screen and a plurality of switches corresponding to a moving direction,
The video image is displayed on the basis of a moving direction input unit for inputting a signal for designating a moving direction of the video image displayed on the screen of the display unit and a signal input from the moving direction input unit. A moving direction determination unit that determines a moving direction to move on the screen of the display unit and a moving amount determination unit that sequentially increases the moving amount of the video image according to the operation duration of the switch in the moving direction input unit. And a display for moving the video image displayed on the screen of the display unit in the moving direction determined by the moving direction determining unit according to the moving amount designated by the moving amount designating unit. A video image movement control device including a control unit.