JPH0448314A - Copy board system - Google Patents

Abstract

PURPOSE:To facilitate observation of the contents drawn at each slave device with which many users can perform the simultaneous input operations with the omission of the need where an input user goes to a master device by integrating the display contents inputted from the slave devices into a master storage means and displaying these integrated display contents on the display means of each slave device. CONSTITUTION:The master device 2 is provided with the slave devices 4a and 4b. These devices 4a and 4b are provided with the input means 22a and 22b and the display means 18a and 18b respectively. Therefore each of both devices 4a and 4b can perform a comparison operation and can confirm the display contents. furthermore the display contents inputted from the devices 4a and 4b are integrated into a master storage means 12, and these integrated display contents are displayed on the means 18a and 18b of the slave devices. Thus a user can draw the characters, the graphics, etc., without going to a copying board 2. In addition, many users can perform the input operations simultaneously and even a person apart from the board 2 can well observe the drawn contents.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copyboard, and particularly to a copyboard that can be used by multiple users at the same time.

[Prior Art] Examples of copyboards conventionally used in conferences and the like are as follows. Draw letters, figures, etc. on the copy boat l using a special pen. copy boat is
It is usually placed so that it can be seen by all meeting attendees.

Therefore, it has the same effect as a blackboard. When erasing characters, figures, etc. written on the copyboard, use a special eraser (made of cloth).

The copyboard is equipped with a copying device, and what is written on the copyboard can be copied onto paper and output. Therefore, it is not necessary for each conference attendee to copy and record what is written on the copyboard, which is convenient.

[Problems to be Solved by the Invention] However, conventional copyboards have the following problems.

First, when drawing characters, figures, etc. on a copyboard, many people cannot draw at the same time. For this reason,
They had to wait their turn, which made them inefficient.

Second, when drawing letters, figures, etc., I had to move to where the copyboard was.

Thirdly, there is a problem in that it is difficult for people who are far away from the copyboard to see the characters, figures, etc. on the copyboard.

This invention solves the above-mentioned problems and allows users to draw characters, figures, etc. without having to go to the copyboard, allows multiple people to draw at the same time, and allows users to draw at a distance from the copyboard. The purpose is to provide a copyboard system that allows people everywhere to clearly see the drawn content.

[Means for solving the problem] In the copyboard system according to claim 1, a main unit and two
The main unit is equipped with the above-mentioned child units, and the parent unit includes a parent storage unit that stores display content, a rewriting control unit that outputs a rewriting signal, and a display content that is stored in the parent storage unit based on the rewriting signal. A display means, a communication means for transmitting data with each slave unit, and each slave unit includes an input means for inputting desired display contents, a slave storage means for storing display contents, and a communication means for transmitting data with the base unit. A communication means for performing the following, integrates display contents input from each slave device into the parent storage means, and displays the integrated display contents on the display means of each slave device based on a rewriting signal, It is characterized by

The copyboard system according to claim 2 is characterized in that the input means includes input means for drawing and input means for erasing.

[Operations] The copyboard system according to claim 1 includes a parent device and a plurality of slave devices, and each slave device is provided with input means and display means. Therefore, input can be performed from each slave device, and display contents can be checked on each slave device.

Further, the display contents inputted from each slave device are integrated into the parent storage means, and the integrated display contents are displayed on the display means of each slave device based on the rewriting signal. Therefore, input can be performed simultaneously from a plurality of slave devices.

[Embodiment] FIG. 1 shows an overall configuration diagram of a copyboard system according to an embodiment of the present invention. This copyboard system is composed of one master device 2 and a plurality of slave devices 4a, 4b, . . . . Base unit 2 and each slave unit 4a.

4b... are provided with communication means 6.8a, 8b..., which enable mutual data communication via the communication line 16.

The parent device 2 is provided with a display means 10 corresponding to a conventional copy boat main body, and is also provided with a parent storage means 12 and a rewrite control means 14.

Each handset 4a, 4b... has display means 18a, 18b.
..., storage means 20a, 20b..., input means 22
a, 22b, . . . are provided.

Input means 22a, 22b of each handset 4a, 4b...
The display contents inputted by the storage means 20a,
20b... is stored. This stored content is further sent to the parent storage means 12 via the communication means 8a8b, . . . and the communication means 6. In the parent storage means 12, display contents inputted from each slave device 4a, 4b, . . . are integrated and stored.

On the other hand, the rewriting control means 14 outputs a rewriting signal at predetermined time intervals. When a rewriting signal is given to the parent storage means 12 of the parent device 2, the parent storage means 12 at that point
The display contents stored in 2 are sent to display means 10. In response to this, the display means 10 displays the contents stored in the parent storage means 12.

At this time, the contents of the parent storage means 12 are stored in each child unit 4a, 4b, . . . via the communication means 6, communication means 8a, 8b, .
are given to the storage means 20a, 20b, . . . and stored therein. In addition, 1. The rewriting signal is also transmitted to the communication means 6 and the communication means 8.
a, 8b, . . . to display means i8a, 18b, . . . of each slave device 4a, 4b, . Display means 1
8a, 18b, . . . receive this rewriting signal and display the contents of the storage means 20a, 20b, .

As described above, input can be performed simultaneously from each slave unit 4a, 4b, . . . , and furthermore, each slave unit 4a, 4. b...
・Can be displayed in .

FIG. 2 schematically shows the appearance of this copyboard system. The copyboard main body 2, which is the parent device, and the input terminals 4a, 4b, . . . , 4n, which are the slave devices, are connected to
connected by 6. Copyboard body 2 has
The display means is a CRTR7 screen with 1 stages. This CR1 screen 10 can be seen even from a distance.
Use a large one. In this embodiment, the copyboard main body 2 is also provided with light vents 30 and 3, which are input means, so that input can be made from the copyboard main body 2 as well.
1 is provided. Note that 30 is a write bezel for input, and 31 is a write benef for erasing. The copyboard main body 2 is provided with a keyboard 32 for inputting instructions. Furthermore, a copying machine 34 is provided.

When a copying instruction is received from the keyboard 32, the copying machine 34 copies the content displayed on the CR1 screen 10 onto paper and outputs it.

Each input terminal 4a, 4b...4n is placed at each person's hand. This input terminal 4a, 4b...4
n also has CR7 screens 18a, 18b, which are display means.
...18n is provided. In addition, as an input means, light bends 220a, 221a, 220b, 221b-・22
0n and 221n are provided.

Note that 220a, 220b, . . . 220n are write rails for input, and 221a, 221b, . Furthermore, keyboards 36a, 36b, . . . , 36n are provided for inputting instructions.

FIG. 3 shows a hardware configuration diagram of the copyboard main body 2. As shown in FIG. The pass line 70 includes a CPU 58, a write control circuit 62, a CRT control circuit 60, a memory 50, a communication control circuit 52, a keyboard control circuit 54, and a copying machine control circuit 5.
6 is connected. The CPU 58 controls each section according to a program stored in the memory 50.

FIG. 4 shows the hardware configuration of the input terminal 4n. The pass line 92n includes a CPU 88n, a write control circuit 80n, a CRT control circuit 84n1, and a memory 86.
The n1 communication control circuit 82 and the n1 keyboard control circuit 90n are connected. The CPU 88n controls each section according to a program stored in the memory 86n. In addition, other input terminals 4a, 4b・
... has a similar configuration.

When the input light ben 220n is traced over the CR7 screen 18n, the light being scanned by the CRT is reflected by the light ben 2.
20n receives light. Based on this light reception timing, the light ben control circuit 80n calculates the locus of the input light ben 220n, and stores it in the memory 86n, which is a storage means. Furthermore, the trajectory of the erase light ben 221n is similarly calculated and stored in the mesori 86n. In this way, the input information (display content) is transferred to the copyboard main body 2 and each input terminal 4a as follows.
, 4b...4n.

CPtJ58 of the copyboard main body 2 is the communication control circuit 5
2 and sends a polling signal to the input terminal 4a (designated #1) as shown at α in FIG. Input terminal 4 receives this via communication control circuit 82a
The CPU 88a of a sends a signal back to the copyboard main body 2. Now, in the input terminal 4a, if there is no new input from the input light bend 220n and the erasure light bend 221n, E
Reply OT.

Upon receiving this EOT signal, CPt of the copyboard body 2
J58 is connected to the input terminal 4b (#2) as shown in γ.
) sends a polling signal to Now, at the input terminal 4b, the input light pen 220n.

If there is a new input from the erasing light pen 221n, an ACK is sent from the terminal 4b as shown in δ.
A signal is sent back. Upon receiving this ACK signal, the copyboard main body 2 sends an ACK signal to the input terminal 4b to prompt transmission (see ε). In response to this, the CPUg8b of the input terminal 4b sends the display contents stored in the memory 86b to the copyboard main body 2 (see ζ)
. This display content consists of the input light pen 2.
20b to draw the input locus, and erase light pen 221b to erase the range of the input locus. The sent display contents are stored in the memory 50, which is a storage means of the copyboard main body 2.

The above operations are performed for all the input terminals 4a to 4n, and the display contents from all the input terminals 4a to 4n are collected in the memory 50 of the copyboard main body 2. At this time, the display contents from each input terminal 4a to 4n are overridden and stored (integrated) in the memory 50.

When the above operation is completed, the CPU of copyboard body 2
58 sends a rewriting signal to the CRT control circuit 60 to update the new display content stored in the memory 50 on the CR7 screen 10.
to be displayed. Further, the CPU 58 transmits the display contents collected in the memory 50 to the memories 86a to 86n of all input terminals 4a to 4n (see η).

The CPU 88 of each input terminal 4a to 4n receives this.
a to 88n send a rewriting signal to the CRT control circuit 84n to display new display contents (same as the display contents of the copyboard body 2) stored in the memories 86a to 86n.

When the above operations are completed, the steps below α in FIG.
18a to 18n.

In this embodiment, drawing and erasing are performed using a light pen for inputting and erasing, so that there is no generation of erased residue, which is sanitary.

Note that if the content displayed on the CRTIO is to be copied onto paper, a copy command is input from the keyboard 32. The CPU 58 receives this via the keyboard control circuit 54 and operates the copying machine control circuit 56. The copying machine control circuit 56 takes in display content data stored in the memory 50 and outputs it to the copying machine 34. The copying machine 34 outputs the displayed content on paper based on this data.

In the above embodiment, a light pen was used as the input means, but a touch panel switch using a transparent electrode was used as the CR.
It may also be used by placing it on the T screen. Furthermore, a liquid crystal display (LCD) or the like may be used as the display means.

Although the communication line 16 is used in the above embodiment, communication between the copyboard main body 2 and the input terminals 4a to 40 may be performed by wireless communication, optical communication, or the like.

Furthermore, if a color display means such as a color CRT is used, color display is possible. In this case, the input color may be designated from the keyboard 32 and the keyboards 36a to 36n. In addition, if the copying machine 34 is provided with a color copying function, it is possible to output copies in color.

[Effects of the Invention] The copyboard system according to the first aspect includes a parent device and a plurality of slave devices, and each slave device is provided with input means and display means. Therefore, input can be performed from each slave device, and display contents can be checked on each slave device.

In other words, characters, figures, etc. can be drawn on the child device without having to move to the parent device. Furthermore, the content drawn by the display means on the slave device side can be clearly seen even by people who are located far away from the parent device.

Furthermore, the display contents inputted from each slave device are integrated into the parent storage means, and the integrated display contents are displayed on the display means of each slave device. Therefore, a large number of people can input data simultaneously from a plurality of slave devices.

That is, according to the present invention, there is provided a copyboard system in which a large number of people can input at the same time without the need for inputters to move to the master device, and furthermore, the content drawn on each child device can be viewed. I can do it.

A copyboard system according to a second aspect of the present invention includes input means for drawing and input means for erasing. (7) Therefore, it is easy to correct the drawing.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the overall configuration of a copyboard system according to an embodiment of the present invention, FIG. 2 is a diagram schematically showing the appearance of a copyboard system according to an embodiment, and FIG. 3 is a copyboard main body 2. Figure 4 is a block diagram showing the hardware configuration of the input terminal 4n, Figure 5 is the copyboard main body 2 and input terminals 4a to 4.
FIG. 3 is a diagram showing the state of data communication with n. 2... Copyboard body 48-4n... Input terminal 6... Communication means 8a-8n... Communication means 10... Display means 12... Parent storage means 14... Rewriting control means 18a ~18n... Display means 20a-2On... Child storage means 22a-22n... Input means Mouse 2 Fig. 6n

Claims (2)

[Claims] (1) A copyboard system comprising a master unit and two or more slave units, in which the master unit includes a master memory unit that stores display contents, a rewriting control unit that outputs a rewriting signal, and a copyboard system that A display means for displaying the display contents stored in the storage means, a communication means for transmitting data with each slave device, and each slave device has an input means for inputting desired display contents, and a display. It is equipped with a slave storage means for storing contents, and a communication means for transmitting data with the master unit, and integrates the display contents input from each slave unit into the master memory means, and sends the integrated display contents to the rewrite signal. A copyboard system characterized by displaying on a display means of each slave device based on the following. (2) The copyboard system according to claim 1, wherein the input means includes input means for drawing and input means for erasing.