JPS6242294B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention provides a method for displaying a screen on a virtual large screen when displaying a screen on a display device such as a CRT (cathode tube) that has the function of enlarging and reducing the display screen. The present invention relates to a virtual screen display method that accurately selects and displays a range of screens.

FIG. 1 is a block diagram showing the configuration of a conventional screen display requesting device. In this Figure 1, 1, 2
are operating devices, 3 and 4 are control devices, and 5 is a synthesis display means for synthesizing and displaying screens based on signals from the control devices 3 and 4.

In addition, FIG. 2 is an explanatory diagram of the screen request procedure,
6 is a virtual screen, 7 is a display screen on the virtual screen 6, 8 is an explicit range drawn on the screen, 9 is the center of the display screen 7, 10 is the center of the explicit range 8, 11
is the screen, and 12 is the center of the screen 11.

In FIGS. 1 and 2, an operating device 1 controls the area of a display screen 7 on a virtual screen 6, and the output of this operating device 1 may be an analog or digital signal.

Further, the operating device 2 controls the center 9 of the display screen 7 on the virtual screen 6, and its output may be either analog or digital.

The respective outputs of the operating devices 1 and 2 are sent to control devices 3 and 4, which determine the display screen 7 and its center 9 of the virtual screen 6 of the image to be displayed on the display screen. As a result, the center 9 of the display screen 7 is aligned with the center 12 of the screen 11, and the display screen 7 is aligned with the center 12 of the screen 11.
1 is set to be displayed completely.

Now, it is assumed that the explicit range 8 that is desired to be displayed on the virtual screen 6 is the image that is ultimately desired to be displayed on the screen 11. At this time, the steps to achieve this are as follows.

First, the user operates the operating device 2 to bring the center 10 of the explicit range 8 to be displayed to the center 12 of the screen 11 . At this time, the image displayed on the screen 11 is an image of the virtual screen 6 having the same area as the display screen 7 centered on the center 10 of the explicit range 8.

In this state, by operating the operating device 1, the explicit range 8 is displayed completely on the screen 11.

Since the conventional screen display requesting device is configured as described above, the center 10 of the explicit range 8 and the explicit range 8
Since the area of the area can only be grasped qualitatively at the time of the display request, operation devices 1 and 2 are used until the final image is obtained.
You will have to repeat this operation many times and search for the request screen through trial and error. In addition, there were drawbacks such as inconvenience in selecting the display screen in relation to the whole.

This invention was made to eliminate the above-mentioned conventional drawbacks, and by clearly indicating the requested display range on the display screen at the time of display request, it is possible to accurately grasp and display the part to be monitored. The purpose is to provide a virtual screen display method.

Embodiments of the virtual screen display method of the present invention will be described below with reference to the drawings. FIG. 3 is a block diagram showing the configuration of one embodiment. In FIG. 3, the same parts as in FIG. 1 will be described with the same reference numerals. Reference numeral 13 in the figure is a display request button, which is turned on when requesting display. At this time, the display request range is clearly displayed on the screen 11 (Fig. 2), and when this display request button 13 is turned from on to off, the specified area on the screen is erased and the currently displayed area is The display screen 7 (FIG. 2) is replaced with the image of the clearly indicated range 8.

Further, 14 is a switch that controls the area of the explicit range 8 and outputs an analog or digital signal.By operating this switch 14, the explicit range 8 on the virtual screen 6 is enlarged,
The display is reduced in size, and the output 102 is sent to the control device 15.

On the other hand, reference numeral 1 denotes an operating device that controls the size of the display screen 7 being displayed relative to the virtual screen 6, and its output 103 is sent to the control device 16. By operating this operating device 1, if the display request button 13 is turned off, the size of the display screen 7 being displayed relative to the virtual screen 6 is enlarged or reduced.

Further, the operating device 2 controls the center 9 of the display screen 7 and the center 10 of the explicit range 8, and the output 104 of this operating device 2 is applied to the gates 19 and 21. The output 101 of the display request button 13 is applied to the gate 19, and when this output 101 is occurring, that is, when the display request button 13 is on, the gate 19 opens and the output 105 (operating device 2 output 104) is sent to the control device 17,
The center 10 of the explicit range 8 moves within the virtual screen 6, and if the display request button 13 is turned off, the center 9 of the display screen 7 moves within the virtual screen 6.

The output of the inverter 20 is applied to the gate 21, and the output 101 of the display request button 13 is applied to the inverter 20. The output of the inverter 20 opens the gate 21, and the output 104 of the operating device 2 passes through this gate 20, and the output 106
The signal is then sent to the control device 18.

As described above, the control devices 17 and 18 control the outputs 105 and 106 of the gates 19 and 21 through which the output 104 of the operating device 2 passes through the gates 19 and 21, respectively, to control the center 10 of the explicit range 8 and the display range 7.
It controls the center 9 of the
The conditions for turning on and off the display request button 13 are gates 19 and 20 (both analog gates).
will be taken into account.

The output 110 of the control device 17 is adapted to be sent to the control device 18 and also to the control device 22.
It is now being sent to The output 111 of the control device 18 is configured to be output to the control device 23. The output 110 of the control device 17 is the control device 18
When the signal is sent to , the control operation of the control device 18 is stopped.

That is, when the output 110 of the control device 17 is output, the display request button 13 is turned on, the gate 19 is opened, and the output 1 of the operating device 2 is output.
04 passes through gate 19, output 1 of gate 19
At this time, there is no output from the inverter 20, the gate 21 remains closed, and the output 106 of the gate 21 is not sent to the control device 18.

Further, the output 108 of the control device 15 is sent to the control device 16 and the control device 22, and the output 109 of the control device 16 is sent to the control device 23.

As described above, the control device 15 receives the output 102 of the switch 14 and controls the area of the explicit range 8 with respect to the virtual screen 6. When the output 102 of the switch 14 is input to the control device 15, the control device 15 The output 108 of 15 is sent to a controller 16, which is inactive.

When the output 103 from the operating device 1 is sent to the control device 16 while the output 108 of the control device 15 is not sent to the control device 16, the control device 16 controls the virtual screen 6 of the display screen 7 as described above. The area is now controlled.

The output 101 of the display request button 13 is sent to the control devices 16 and 18 in addition to the gate 19 and inverter 20 described above, and is also sent to the control device 22 as an output 107. ing.

The control device 22 controls the display of the explicit part on the screen 11, and when the display request button 13 is turned on, the output 10 of the control device 15 is
8, and in response to the output 110 of the control device 17,
The explicit range 8 is displayed on the screen 11 based on the display area and display position information for the explicit range 8.

Further, the control device 23 is a part that controls and displays the display screen 7 that is being displayed, and the output 10 of the control device 16.
9. The display screen is determined and displayed based on the display area and display center 9 information for the display screen 7 controlled by the output 111 of the control device 18.

The display area of the display screen 7 of the control devices 16, 18,
For position control, the following processing is performed when the signal from the display request button 13 changes from on to off. That is, the controller 16 controls the output 10 so that the explicit range 8 fills up the screen 11.
Switch the signal of 9.

The control device 18 is adapted to switch its output 111 so that the center 10 of the explicit range 8 coincides with the center 12 of the screen 11.

FIG. 4 is a perspective view showing a specific configuration of the present invention. In FIG. 4, the same parts as in FIG. 3 are given the same reference numerals. The display request button 13 and the switch 14 are push-type and take the form of a multi-stage push button switch, and the state shown in FIG. 4 shows that the display request button 13 is in the on state. .
When the switch 14 is turned on, the display area of the explicit range 8 is selected depending on the pressed position.

Further, the operating device 1 is a rotary switch,
Depending on the relative position, the area of the display screen 7 with respect to the virtual screen 6 is selected.

Furthermore, the operating device 2 is designed to swing left and right, and by turning off the display request button 13 and tilting the operating device 2 to the right, the display screen 7 being displayed moves to the right (virtual screen 6 is displayed on the screen). Then, if you turn on the display request button 13 and tilt the operating device 2 to the left, the display screen 7 that is being displayed will remain fixed.
The explicit range 8 is adapted to move to the left within the display screen 7.

In addition, the display request button 13, switch 14, and operating devices 1 and 2 can all be tilted in either the front or back, left or right direction, and depending on the direction, the center 9 or the center 9 of the display screen 7 relative to the virtual screen 6 can be tilted. The center 10 of the explicit range 8 is designed to move.

Next, the operation of the virtual screen display system of the present invention configured as described above will be explained. Second
In the figure, screen 11 of virtual screen 6
The range displayed on the top is defined as the display screen 7, and the range that is to be displayed completely on the screen 11 is defined as the explicit range 8. The procedure for requesting this is as follows.

First, the display request button 13 is turned on. At this time, the display screen 7 is displayed on the screen 11.
is displayed, so operate the switch 14 and select the area so that the area covers the entire requested screen.

At the same time, the user operates the operating device 2 to bring the center 10 of the explicit range 8 to the center of the screen to be displayed.

In this state, when the display request button 13 is turned off from on, the explicit range 8 disappears from the screen 11, and the display screen 7 is replaced with the image of the portion that was explicitly displayed until then.

At this time, the clearly indicated portion is enlarged and displayed to fill the entire screen 11.

Note that the size of the display screen 7 before the display request is made can be arbitrarily selected with respect to the virtual screen 6 by operating the operating device 1 before turning on the display request button 13.

By doing so, when selecting and displaying the range to be monitored on the virtual screen 6, it is possible to accurately select the display range in relation to the whole.

In the embodiment shown in FIG. 4, the operating device is integrated, but the rotary switch of the operating device 1 may be attached to another location, for example.

As described above, according to the virtual screen display method of the present invention, the display request range to be monitored next is displayed on a large range of the virtual large screen as a display screen,
On top of that, we made it possible to select an explicit range, so
Request screens can be selected and displayed smoothly.

Further, there is an effect that an accurate range of screens can be selectively displayed and monitored after grasping the overall information.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a conventional screen display requesting device, and FIG. 2 is an explanatory diagram of the screen request procedure.
FIG. 3 is a block diagram showing the configuration of an embodiment of the virtual screen display method of the present invention, and FIG. 4 shows an example of the specific configuration of the operation device and display request button portion in the virtual screen display method of the present invention. FIG. 1, 2...Operation device, 3...Display request button, 14...Switch, 15-18, 22, 23
...Control device, 19, 21...Gate, 20...Inverter. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A first means for controlling the area of the display screen that is part of the virtual screen displayed on the screen, a second means for controlling the area of the explicit range that is a part of the display screen, and a second means for controlling the area of the display screen and the explicit range. A third means for aligning the center with the center of the screen, a fourth means for receiving the outputs of the second means and the third means when the display request button is turned on, and displaying the explicit range completely on the screen; A virtual screen display method comprising: a fifth means that receives the outputs of the first means and the third means when the request button is turned off, and displays the display screen completely on the screen.