JPH01114935A - Picture switching system - Google Patents

Abstract

PURPOSE:To reduce the frequency of key depression and to shorten a time required for picture switching by providing the title system with a picture switching control table and X and Y counters and using a picture switching key and a sub-picture switching key to switch a picture. CONSTITUTION:In case of switching a job A whose picture is displayed on a CRT 2 to a job B, the picture switching key on a keyboard device 1 is depressed, so that only the X counter 5 counts up its contents, and when the job address of the job A is A11, the contents are updated like A11 A21-Ax1. When the sub-picture witching key on the keyboard device 1 is depressed, only the Y counter counts up its contents, and when the job address of the job A is A21, the contents are updated like A21 22-A2y. At the time of receiving a picture switching instruction, a CRT picture switching part 10 saves the picture information of the job A in its corresponding job buffer, searches the picture switching control table 3 on the basis of the depressed key, determines a job B, and then displays the job B on the CRT 2. Since plural switching key are used and respectively job pictures are constituted in each line unit, the frequency of key depression and the switching time can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a screen switching method, particularly to a screen switching method in a personal computer system in which a plurality of jobs are running.

[Conventional technology]

Conventionally, this type of screen switching is performed by pressing the screen switching key, as shown in Figure 5, from the primary job screen to the secondary job screen, and from the secondary job screen to the tertiary job screen. The screen was switched sequentially.

Here, screen switching refers to the one currently displayed on the CRT.
The state of the next job screen is saved in memory as screen information (hardware setting status), the job to be displayed next is determined, the hardware is configured according to the screen information of that job, and the screen of the second job is displayed on the CRT. It means to do.

[Problem that the invention seeks to solve]

In the conventional method described above, the screens are switched sequentially starting from the screen of the primary job, so (n-1) key inputs are required to switch the screen from the primary job to the 0th job. The drawback is that it takes time to switch from the next level to the higher level.

[Means for solving problems]

The method of the present invention includes: a keyboard device provided with a screen switching key and a sub-screen switching key; an X counter that increments when the screen switching key is pressed; A screen switching control table in which a job address is stored in advance at each address and addresses in the X direction and Y direction are specified by the contents of the X counter and the Y counter corresponding to the X counter. The present invention is characterized in that when switching job screens, the screen switching key and the sub-screen switching key are used and pressed separately, thereby making it possible to switch screens with a small number of key presses.

〔Example〕

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

FIG. 1 is a block diagram showing an embodiment of the present invention, in which a keyboard device 1. A hardware section including a CRT device 2 and a screen switching control table 3. Job buffer 41-4
W, X counter5. It is composed of a CRTR 7 screen switching section having a Y counter 6 and an application program section for jobs 71 to 7W, and is a screen switching system for jobs 71 to 7W.

The screen switching control table 3 holds job addresses input and set from the file device (not shown) or the keyboard device 1 at the time of system startup, and its configuration is formed in a matrix as shown in FIG. be done.

In Figure 2, ALm (i!=1~x, m=1~y)
is the job address, and the job address A L sa
specifies the 0th order job. Here, n= (m-1)x
-t-4', and x and y are each in the X direction.

Represents the maximum value in the Y direction.

The X counter 5 gives an address in the X direction of the screen switching control table 3, and is incremented by pressing the screen switching key provided on the keyboard device 1. When it reaches 'X', it returns to '1'.Y counter 6 consists of X counters designated by the contents of the X counter 5, and provides an address in the Y direction for the corresponding row of the screen switching control table 3. When the key is pressed, the step advances to "y" and returns to "1".The initial values of the X counter 5 and Y counter 6 can be set arbitrarily at system startup, but here they are both 1". It is assumed that this is set to .

The job buffers 41 to 4W are for saving screen information displayed on the CRT device 2 when the screen is switched.

Next, the operation of this embodiment will be explained.

Now, when switching from job A whose screen is displayed on the CRT device 2 to job B, the screen switching key and sub-screen switching key of the keyboard device 1 are used, taking into account the positions of job A and job B in the screen switching control table 3. and press.

CRTR7 Screen switching section top 0 When this screen switching instruction is received, the screen information of job A is saved in the corresponding job buffer, and the next pressed key searches the screen switching control table 3 to save job B after the screen switching. is determined and its screen is displayed on the CRT device 2.

A specific example of table search is as follows.

If only the screen switching key is pressed, the X counter 5
If the job address of job A is Al1-+A21→A11→..., job A
If is job address A32, then A32 → AS3 →...
・When they reach A, 41, and A)13, respectively, they return to All and A31.

When only the sub screen switching key is pressed, only the Y counter 6 operates and job A is changed to job address A21.
If so, A21→A22→A23→..., and if job A is job address Ax3, then Ag3→AX4→...
..., respectively, and A2311. When it reaches Axy, it returns to A21+AXI.

When the screen switching key and the sub-screen switching key are pressed, the X counter 5 and the Y counter 6 are activated. When the job address of job A is All, if the sub-screen switching key is pressed twice and then the screen switching key is pressed, the sequence changes from A11-A12 to A13 to A21.

FIG. 4 briefly shows an example of the above-mentioned table search, and the screen switching control table 3 in this case is the third one.
As shown in the diagram, in this example, there is a first group consisting of primary jobs, 4th jobs, and 5th jobs, a 2nd group consisting of only secondary jobs, and a 3rd group consisting of only tertiary jobs. This means that jobs are grouped into groups.

〔Effect of the invention〕

As explained above, the present invention provides a screen switching key and a sub-screen switching key, and groups the screens of each job in line units, so that the screen switching key is used when switching the screen from a primary job to a higher-level job. This reduces the number of times the button is pressed, which has the effect of shortening the time it takes to switch screens.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the present invention, Fig. 2 shows details of main parts of this embodiment, Figs. 3 and 4 are diagrams for explaining the operation of this embodiment, and Fig. 5 shows a conventional example. Each is shown below. 1...Keyboard device, 2...CRT device, 3...
・Screen switching control table, 41, 42.43...4W
...Job buffer, 5...X counter, 6...
Y counter, 71, 72, 73. ...7W...Job, 10...CRT screen switching section.

Claims (1)

[Scope of Claims] A keyboard device provided with a screen switching key and a sub-screen switching key; an X counter that increments when the screen switching key is pressed; A Y counter that increments when a key is pressed, and a job address is stored in each address in advance, and addresses in the X direction and Y direction are specified by the contents of the X counter and the Y counter corresponding to the X counter. A screen switching control table is provided, and when switching the screen of a job, the screen switching key and the sub screen switching key are used and pressed separately, thereby making it possible to switch the screen with a small number of key presses. Screen switching method.