JPS61281287A - Display 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 (Field of Industrial Application) The present invention relates to a display system that controls a cursor on a CRT screen of a plurality of display devices.

(Prior Art) A conventional display device that displays a cursor (hereinafter abbreviated as “display device”) includes means for receiving cursor control information from a pointing device, and controlling a cursor on a CRT screen using the cursor control information. It is equipped with means for performing processing indicated by the position of the cursor, and processing between the display screens of multiple display devices installed adjacently (hereinafter abbreviated as rCRTJ), such as image editing. , when controlling a cursor on the CRT screen and instructing the cursor position using a pointing device, a plurality of pointing devices corresponding to the cursors on the plurality of CRT screens are connected to a plurality of display devices. was.

(Problems to be Solved by the Invention) According to the conventional configuration, the pointing device must be changed every time the target CRT changes.
The operability is very poor, and multiple CRTs are adjacent to each other.
When performing processing between screens, two or more pointing devices are not moved at the same time to control the cursor on the CR1 screen, and only one pointing device is working effectively, which is extremely difficult. The problem was that it was not efficient.

(Means for Solving the Problem) In order to solve the problem, the present invention uses a plurality of display devices, a plurality of CRTs are installed adjacently, and a cursor on the screen of the plurality of CR1 When controlling a cursor and issuing processing instructions, a pointing device is connected to only one display device, and the plurality of display devices are equipped with a means for transmitting and receiving information related to cursor control, making the operation easy and efficient. It often provides a display system that controls a cursor on multiple CR1 screens.

(Function) According to the present invention, the cursor control of the pointing device is controlled by using means for transmitting and receiving cursor control information from the display device connected to the pointing device to the display device to which the cursor on the CR1 screen is desired to be controlled. By transmitting information, one pointing device can control the cursor on the CR1 screen of another display device to which the pointing device is not connected.

(Example) An example of the present invention will be described with reference to a block diagram shown in the figure.

In the figure, CPUIA, 1 of display devices A and B
．． controls the input/output of image data to/from the file 3 via the file data transmitting/receiving units 2A and 2m, and controls the input/output of image data to/from the file 3 via the cursor data input/receiving unit 4.
Controls reception of cursor control information from cursor control information transmitting units 6A, 6. The CP UIA via the CP UIA, 1.
Controls transmission and reception of cursor control information between processing information transmission and reception sections 7A, 7. The display control unit 8^ controls the transmission and reception of instruction processing information based on the cursor position between the CP UIA and 11 via the CP UIA and 11.

This is the main control unit that controls the CRTs 9A and 911 using the CRT 9A and 911.

Note that the display control units 8A, 8. is the CP UIA
, 1° to change the display image and cursor position on the screen of the CRT9A, 9m, and to notify the CP UIA, IIl of the cursor position on the screen of the CRT9A, 9m when processing is instructed. are doing.

CRT9 of display device B. In order to cut out a part of the image on the screen of the display device A and fit it into the part of the image on the screen of the CRT 9A of the display device A, the operator uses the pointing device 5 to move the cursor on the screen of the CRT 9A and adjust its position. In this step, the CPUIA is instructed to cut out the specified area on the screen of the CRT 9m and insert it into the specified area on the screen of the CRT 9A. At this time, it is assumed that a menu for the processing is provided on the screen of the CRT 9A.

When the cursor control information from the pointing device 5 is input to the CPUIA via the cursor data input receiving section 4, the CPUIA uses the cursor control information to display information on the screen of the CRT 9A via the display control section 8A. control the cursor, and instruct, for example, where to display the cursor.

The pointing device 5 is equipped with means for generating information for instructing processing, such as a switch, so that the operator can perform processing by moving the cursor on the CRTgA to the processing menu position and pressing the switch. If you follow the instructions.

The CPUIA, which has received the processing instruction via the cursor data input receiving section 4, transmits the processing instruction to the display control section 8A, and the display control section transmits the contents of the processing instructed from the current cursor position to the CPUIA. tell. The CPUIA, which received the processing instruction, processes the CRT9. The area to be cut out on the screen is specified by cursor control using cursor control information from the pointing device 5.
The information is sent to the processing information transmitter 7. ,7. Via
CPU1. tell to.

Next, the CPUIA, which has received cursor control information from the pointing device 5 via the cursor data input receiving section 4, instructs the area of the image to be cut out on the screen of the CRT 911, to the cursor control information transmitting/receiving section 15A.
, 61 to the CPU III, the CPU
is based on the cursor control information.

The display controller 81 is controlled to control the cursor on the screen of the CRT 9m. That is, using the pointing device 5, the CRT 9. When an area to be cut out, for example, two points at the diagonal ends of a rectangular area, is indicated with a cursor on the screen, the display control unit 8m changes the cursor position at this time to CP.
Tell the U1m. The CRT transmitted to the CPUI□
h The information in the designated area on the screen is
1m, via the processing information transmitting/receiving sections 7B and 7A, the CP
and the cpUIA receives the CRT9. Know when cursor control ends on the screen.

Next, cursor control information specifying an area to fit an image on the screen of the CRT 9A is transmitted from the pointing device 5 to the CPUIA via the cursor data input receiving section 4, and the CPUIA controls the display control section 8A to
Specify the area to fit the image with the cursor on the T9A screen.

Next, the CPUIA receives the CRT information from the CPUI□.
The image data of the area to be cut out on the screen of the CRT 911 is accessed from the file 3 via the file data transmitting/receiving unit 2A, and the image is displayed in the designated area on the screen of the CRT 9A via the display control unit 8A. .

Note that the cursor control information transmitting/receiving units 6A, 6 shown in FIG.
．． and processing information transmitting/receiving sections 7A, 7□, if software is used to determine whether the target to be transmitted/received between display devices is cursor control information or processing information, 6A and 7A and 61 and 71, respectively, can be Can be used together in the transmitter and receiver.

The display device B also includes a plurality of display devices having the same means as the display device B, and connects the plurality of display devices to a display device A having a pointing device 5 like the display device, so that a cursor can be moved. By sending and receiving control information, 3
It is possible to operate a display system consisting of more than one display device.

(Effects of the Invention) According to the present invention, in a display system configured with a display device that displays a plurality of cursors, a pointing device can perform processing between images on the screens of a plurality of CRTs installed adjacent to each other. When instructing processing using cursor control, it can be easily operated and inexpensively performed using a single pointing device, and can be realized with a simple configuration that includes means for transmitting and receiving information regarding cursor control. This has the advantage that the number of balance scales and display devices can be easily increased.

[Brief explanation of the drawing]

The figure shows a block diagram of one embodiment of the display system of the present invention. A, B...display device, IA, 1. ...C
PU, 2A, 2. ...File data transmission/reception section. 3...File, 4...Cursor data input receiving unit, 5...Pointing device, 6A,
61...Cursor control information transmitting/receiving section, 7A, 7°...
- Processing information transmitting/receiving section, 8A, 8□...Display control section. 9A, 9. ...CRT.

Claims (1)

[Claims] A CRT for displaying a cursor, means for controlling the cursor on the screen of the CRT using cursor control information, means for performing processing indicated by the cursor position, and means for transmitting and receiving information regarding the processing indicated by the cursor position. In a system configured of a plurality of display devices, one of the plurality of display devices receives a pointing device that generates cursor control information and the cursor control information from the pointing device. and means for transmitting and receiving the cursor control information to and from the plurality of display devices, the C of at least one of the plurality of display devices being controlled by one pointing device.
A display system characterized by controlling a cursor on an RT screen.