JP2001154807A - Coordinate input display system and coordinate input display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coordinate input display system of which operability is excellent and with which plural coordinate inputting devices are connected. SOLUTION: This coordinate input display system is constituted of a first display device 10, more than a pair of second coordinate input system 30 consisting of a second display means 31, a second coordinate detecting means 33 for detecting coordinate inputted to the second display means, and a second controller 34 for obtaining the information of the coordinate from the second detecting means, and a display screen selecting means 50 for selecting information from more than a pair of second coordinate inputting system 30, and for displaying it on the first display device 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coordinate input device using a pen used in presentations and school education, and a coordinate input display system using a coordinate display device for selecting and displaying information from the coordinate input device.

[0002]

2. Description of the Related Art As a prior art of such a coordinate input display system, for example, as disclosed in Japanese Patent Application Laid-Open No. H10-254623, "Coordinate Input Device and Control Method Thereof" Various methods have been proposed for detection using sound waves or the like. However, in this type of conventional device, there is no consideration regarding usability when a large number of coordinate input devices are connected.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a coordinate input display system and a coordinate display device to which a large number of coordinate input devices are connected, which is particularly suitable for use in school education and has excellent usability. It is in.

[0004]

According to a first aspect of the present invention, there is provided a coordinate input display system according to the first aspect of the present invention, wherein a display device is provided on a teacher side, and a student performs grouping by a specific number of persons. A display device provided with coordinate detection means is provided for each. The teacher can easily advance the presentation for each group by selecting the coordinate information sent from the coordinate input device installed for each group and displaying it on the display device arranged in a place that is easy for all students to see .

According to a second aspect of the present invention, a display device having a coordinate detecting function is provided on the teacher side,
The student performs grouping for each specific number of persons, and sets up a display device provided with coordinate detecting means for each of the groups. The controller on the teacher side and the controller on the student side are connected by a network or the like, and each coordinate information is transmitted from the controller on the student side to the controller on the teacher side. The teacher easily advances the presentation for each group by selecting the coordinate information sent from the coordinate input device installed for each group and displaying it on the teacher's display device arranged in a place that is easy for all students to see Can do things.

In the coordinate input display system according to the third aspect, when the coordinate information from the student side control device selected in the second aspect is displayed on the teacher side display device, the coordinate information display system is provided in the teacher side control device. The ability to input or edit coordinates from the coordinate detection means provided enables a teacher's comment to be easily added to a student's presentation.

In the coordinate input display system according to the fourth aspect, a storage device is provided in the control device on the teacher side, and the data is acquired by the coordinate detecting means on the teacher side and the student side and stored in the storage device. The above object is achieved by enabling the information written by designating "."

According to a fifth aspect of the present invention, there is provided a coordinate input display system according to the first aspect, wherein a speaker is provided on the display device on the teacher side, and a microphone is provided on each of the at least one control device on the student side. When the coordinate information selected by the information selecting means is displayed on the teacher's display device, the sound from the selected student's microphone is reproduced from the main speaker provided on the teacher's side, and the presentation for each group is made. It can be done effectively.

According to a sixth aspect of the present invention, there is provided a coordinate input and display system according to the second aspect, wherein a microphone and a speaker are provided on the teacher's device, and a microphone is provided on each of at least one student's control device. When displaying the coordinate information selected by the means for selecting the coordinate information on the teacher's display device, the sound from the selected student's microphone is reproduced from the main speaker provided on the teacher's side, so that each group can be displayed. Make presentations effectively.

The coordinate display device according to claim 7, further comprising display means for displaying coordinate information input from an external coordinate input device, wherein the display means selects coordinates from a plurality of coordinate input devices and displays the information. And a display screen selecting means for outputting the data to the display screen.

According to an eighth aspect of the present invention, there is provided the coordinate display device according to the seventh aspect, wherein the coordinate detection means detects the coordinates inputted to the display means, and the coordinate information is acquired from the coordinate detection means. And a control device for displaying on the display means.

According to a ninth aspect of the present invention, in the coordinate display device of the eighth aspect, a coordinate detecting means is provided in the display means so that coordinates can be input from the coordinate display apparatus.

According to a tenth aspect of the present invention, in the coordinate display device of the eighth aspect, a storage device is provided in the control device, and the coordinate information is stored in the storage device.

According to an eleventh aspect of the present invention, in the coordinate display device according to the eighth aspect, the coordinate display device includes a speaker and means for selecting coordinate information from an external coordinate input device. A signal from a microphone provided in an external coordinate input device provided in at least one pair is selected by means for selecting coordinate information from an external coordinate input system, and the coordinate information is displayed on a display means, and a signal from the microphone is displayed. Was played from a speaker.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a coordinate input display system according to the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a first embodiment according to the coordinate input display system of the present invention.

The coordinate input display system according to this embodiment is configured by connecting a display device 10 and a plurality of group coordinate input systems 30 via a display screen selecting means 50.

The display device 10 is a large-sized display device and is provided, for example, at a position of a blackboard in a classroom.

The display screen selecting means 50 selects signals input from the plurality of group coordinate input systems 30 and outputs the signals to the display device 10.

The group coordinate input system 30 includes a white board 31, an input pen 32, and coordinate detecting means 33.
, A second control device 34, and a display 35. Further, the whiteboard 31 is provided with a first ultrasonic sensor 311, an optical sensor 312, and a second ultrasonic sensor 313. In this embodiment, two group coordinate input systems 30, a group 1 coordinate input system 30-1 and a group 2 coordinate input system 30-2, are connected to the display device 10 via the display screen selecting means 50. You.

The display device 10 is a large display device.
When this system is used in a classroom, for example, a teacher gives a lesson to a student by projecting an image on the display device 10. In addition, students who are divided into several groups will be given classes to give lessons. The coordinate input system 30-1 for group 1 and the coordinate input system 30-2 for group 2 may be coordinate input systems having the same configuration, and are prepared by the number of groups.

Although the effect of the present invention does not depend on the coordinate input method, it is considered to be effective in understanding the contents and feasibility of the present embodiment. The principle of the coordinate input display device described above will be described.

First, the configuration of the input pen 32 will be described with reference to FIG. The input pen 32 includes a pen tip 321, a micro switch 322, a pen control unit 323, and a battery 324.
, An ultrasonic wave generating means 325 and a light emitting means 326.

The pen point 321 is a pen for a whiteboard, and is attached to the tip of the input pen 32. Pen point 32
1 is movable with a slight gap from the main body of the input pen 32, so that when pressure is applied to the tip of the pen tip 321, the microswitch 322 is turned on and the pressure applied to the tip of the pen tip 321 is reduced. When the application is stopped, the microswitch 322 is turned off. Therefore, the micro switch 322 is used only when writing to the whiteboard.
Is turned on.

The pen control unit 323 includes the micro switch 3
When detecting that the switch 22 is turned on, the ultrasonic generator 325 and the light emitter 326 generate ultrasonic waves and light. The power of the pen control unit 323 is supplied from the battery 324.

The ultrasonic wave generating means 325 generates a sound wave of a frequency (for example, 40 kHz or more) which cannot be heard by ordinary people. The light emitting means 326 also emits light having a wavelength other than visible light such as infrared light.

The principle of inputting coordinates will be described with reference to FIG.
In the figure, components having the same numbers as those in FIG. 1 indicate the same components as those in FIG. The first ultrasonic sensor 311 and the second ultrasonic sensor 313 are arranged at a predetermined interval L1.

When the pressure applied to the internal microswitch 322 by pressing the input pen 32 against the screen exceeds a certain value, the microswitch 322 is turned on. The pen control unit 323 is a micro switch 322
When it is detected that the power is turned on, the ultrasonic wave generating means 3
25 and the light emitting means 326 generate ultrasonic waves and light.

Since the speed of light is higher than the speed of sound, the first ultrasonic sensor 311 and the second ultrasonic sensor 311 wait a certain time after the light sensor 104 detects light.
13 detects a sound wave from the input pen 32. Optical sensor 3
The time when the first ultrasonic sensor 311 detects the sound wave after the light is detected by the light sensor 12 is Δt1, and the time when the second ultrasonic sensor 313 detects the sound wave after the light sensor 312 detects the light is Δt2. I do. Input pen 32 based on the product of Δt1 and sound speed
The distance L2 between the first ultrasonic sensor 311 and the first ultrasonic sensor 311 can be obtained. Further, the distance L3 between the input pen 32 and the second ultrasonic sensor 313 can be obtained from the product of Δt2 and the speed of sound.

Since the speed of light is sufficiently higher than the speed of sound, the time required for light to reach here can be ignored, so that only one light sensor is required.

Here, the lengths L1 and L1 of the three sides of the triangle
2. Since L3 is determined, the coordinates of the input pen 32 can be obtained. The process of calculating the coordinates may be performed inside the coordinate detecting means 33 or may be performed inside the first control device.

The configuration of the second control device will be described with reference to FIG. The second control device 34 includes a CPU 341 and a ROM
342, RAM 343, VRAM 344, display circuit 345, coordinate detecting means interface 346,
It has a network interface 347, a storage device interface 348, and a storage device 349. The display circuit 345 is connected to the display 35.

The coordinate detecting means interface 346 is an interface of the coordinate detecting means 33-1. The network interface 347 is an interface with a network. The storage device interface 348 is an interface with the storage device 349.

The network interface 347 and the storage device 349 are provided as needed.

The CPU 341 controls the entire control device according to a program recorded in the ROM 342. RA
M343 stores temporary data.

The CPU 341 acquires the coordinates of the input pen 32 from the coordinate detecting means 33 provided outside from the coordinate detecting means interface 346.

The CPU 341 can record information in the storage device 349 via the storage device interface 348, and can read the recorded information.
It is assumed that the storage device can record and reproduce information as a randomly accessible file using a hard disk or an optical disk as a storage medium.

The VRAM 344 is a video memory for display. The display circuit 345 reads out the VRAM 344, converts it into a video signal, and displays it on the display 35. V
The information written in the RAM 344 is displayed at a position corresponding to the memory address.
By writing information to the AM 344, the display 35 is displayed.
Characters and figures can be displayed on top.

The network interface 347 is used for exchanging information with an external device. This function will be described in a later embodiment.

FIG. 5 shows that the input pen 32 is
Shows an example of the format of the data sent to. The input pen 32 causes the coordinate detection device 33 to recognize the coordinates using ultrasonic waves and infrared rays. For example, various kinds of information as shown in FIG. 5 can be modulated and superimposed on the infrared signal. Thus, various types of lines can be drawn by designating, for example, pen color information, line thickness, attributes of lines such as dotted lines and wavy lines, or line erasure information such as an eraser. For these different information, it is also possible to prepare a dedicated pen for outputting different information, but for example, a switch is provided on the pen and the color and line attributes,
Various types of lines such as an eraser may be drawn.

In FIG. 1, a student who has been given a task by grouping inputs a figure or a character on a whiteboard 31 of a coordinate input display device in each group.
Discussion while writing in. The input characters and figures are detected by the coordinate detecting means 33 and sequentially recorded in the second control device 34. The display 35 also displays characters and graphics input from the whiteboard 31.

The video signal sent to the display 35 is
It is also sent to the display screen selection means 50. In this embodiment, the display screen selecting means 50 is realized by a video signal changeover switch. The display screen selecting means 50 selects the video signals sent from the plurality of coordinate input display systems, and
Can be displayed.

Conventionally, when giving a presentation to all students after the discussion of each group,
It took time and effort to create HP. In this system, the whiteboard 3 displayed on the display 35
By selecting the video information of the characters and figures written in 1 on the display device 10 by selecting the display screen selecting means 50,
Since the screens of characters and figures created for each group can be easily viewed by all the members, a smooth presentation can be performed.

The configuration of the coordinate input display system according to the second embodiment of the present invention will be described with reference to FIG. This embodiment is different from the coordinate input display system according to the first embodiment shown in FIG.
The components are characterized in that the HUB 62 is provided.
The first control device 61 displays an image on the display device 10. The first control device 61 has the same configuration as the second control device 34. The first control device 61 and the second control device 34 are connected to each other by a network via a hub 62.

FIG. 7 shows a second control unit 34 for controlling the coordinate input display system assigned to each group.
An example of a format when transferring coordinate information to the control device 61 of FIG. It is assumed that the coordinate information is transmitted, for example, in the form of a message called a packet via a network. The coordinate information includes information on the sent time (time information), system ID information for identifying which group the coordinate input display system is assigned to, pen coordinate information, pen type, for example, writing or erasing. , Color information, attribute information indicating line thickness, line type, and the like.

The second controller 34 sends the information shown in FIG. 7 to the first controller 61 at regular intervals (for example, 10 times per second) while the pen is being pressed.

In FIG. 6, the display screen selecting means 50
For example, a large number of switches are arranged and assigned to each group to serve as an input device for selecting a coordinate input device.

The first control device 61 extracts only the coordinate information sent from the selected coordinate input system according to the information input from the display screen selecting means 50, and
By displaying at 0, only the image from the selected coordinate input system can be displayed on the display device 10.

In the system described in the first embodiment, for example, three cables are required for separately transmitting RGB signals to transmit a video signal, whereas in the second embodiment, a screen is This information is transmitted as digital data via a network, so that there is an advantage that image information can be transmitted with one cable without deteriorating image quality.

FIG. 8 shows an example of a screen for selecting a coordinate input display device assigned to each group. First
The control device 61 displays a reduced image of the input image below the display device 10 based on the coordinate information transmitted from the second control device 34 of each group. The user selects an image by selecting a reduced image from the display screen selecting means 50. The selected image is enlarged and displayed on the upper part of the display device 10.

The first control device 61 develops coordinate table information transmitted in the format shown in FIG. 7 into bitmap image information and writes the information into the VRAM 344 to thereby provide a coordinate input device provided for each group. Is displayed on the display device 10, and reduced image information can be obtained by thinning the information at a constant rate in the vertical and horizontal directions.

By selecting the reduced image, the user can easily select the image of the group desired to be displayed, enlarge it, and display it.

The configuration of the coordinate input display system according to the third embodiment of the present invention will be described with reference to FIG. The coordinate input display system according to this embodiment is the same as the coordinate input display system according to the second embodiment shown in FIG. 6, except that the display device on the teacher side is replaced by the first ultrasonic sensor 11.
1, an optical sensor 112, and a second ultrasonic sensor 113. The display device 11 includes an input pen 12, a coordinate detecting unit 13, and a coordinate input system of the display device.
A first control device 61 and a storage device 65 are provided, and the storage device 36 is provided in the group coordinate input system 30.
The feature is that it is provided.

The third embodiment is characterized in that by attaching the coordinate detecting means 13 to the display device 11, characters and figures can be directly input to the display screen.

The display device 11 is a large-sized display device, and displays a video signal from the first control device 61. When this system is used in a classroom, a teacher gives a class to a student by projecting an image on the display device 11.

FIG. 10 shows the structure of the input pen 12. The input pen 12 used for the display device 11 has substantially the same configuration as the input pen 32 shown in FIG. 2, but is different from the input pen 32 shown in FIG. A pen shaft 121 made of shaped plastic is contained therein, and the micro switch 322 is turned on by applying pressure to the tip of the input pen 12. The tip of the pen shaft 121 is made of a material such as plastic or felt, so that even if the display surface of the display device 11 is rubbed, the display surface is not damaged or the surface is not stained with ink.

When the pressure applied to the internal microswitch 322 by pressing the input pen 12 against the screen exceeds a certain value, the microswitch 322 is turned on. When the pen control unit 323 detects that the micro switch 322 has been turned on, the ultrasonic wave generating unit 32
5 and the light emitting means 326 to generate ultrasonic waves and light. The generated ultrasonic waves are detected by the ultrasonic sensors 111 and 113, the light is detected by the optical sensor 112, and the coordinates of the input pen 12 are obtained by the coordinate detecting means 13 by the above-described method. The coordinates of the input pen 12 detected by the coordinate detecting means 13 are transmitted to the first control device 61, and the input pen 12
By coloring the display dot on the display screen at the place where is present, the expression is performed as if writing was performed by the input pen 12.

The character / graphic information written on the board of the coordinate input system 30 for each group is detected by the coordinate detecting means 33 as the coordinate information of the pen, and the second control device 3
4 The second control device 34 adds various attribute information to the input coordinate information,
Transmit to 1.

The first control device 61 is a display screen selecting means 5
The image information is written into the VRAM inside the first control device 61 based on the coordinate information from the second control device 34 selected by 0. The address of the video memory is the display device 11
Corresponds to the display position of the first control device 61, the first control device 61 transmits the coordinate information transmitted from the second control device 34 to the VR
By writing in the AM, the characters and graphics written in the display means 31 can be displayed on the display device 11.

Further, the first control device 61 controls the display device 1
1, the coordinate information input from the coordinate detecting means 13 is represented by V
By writing in the RAM, for example, the teacher can write a comment on the screen of the student's group presentation.

Coordinate detecting means 13 and coordinate detecting means 34
By recording the information of the coordinates sent from the first control device 61 to the storage device 65 provided in the first control device 61, it is also possible to reproduce the characters and figures to be displayed later. . In this case, as shown in the table shown in FIG. 11, the first control device 61 records the sent coordinate information, temporarily deletes the image on the display device 11, and then records the coordinate information. By sequentially writing the information of the display screen selected by the display screen selecting means 50 into the VRAM, it is possible to display the character graphic displayed in the past again.

In the present embodiment, a teacher or a presenter of a presentation can give a lesson or a presentation while directly inputting characters or figures with the input pen 12 to the display device 11, so that an effective presentation can be made.

A coordinate input display system according to a fourth embodiment of the present invention will be described with reference to FIG. The fourth embodiment is characterized in that a voice function is further added to the coordinate input display system according to the first embodiment. The teacher side system of the coordinate input display system according to the fourth embodiment is provided with the signal selecting means 15, the speakers 14-1 and 14-2, and the group coordinate input system 30 is provided with the microphone 37. It is characterized by

On the group coordinate input system 30 side, the second control device 34 transmits the voice input from the microphone 37 to the signal selection means 15 via a cable. FIG.
In 2, the cable is represented by a single line, but audio and video can be transmitted by a plurality of cables as needed.

The signal selecting means 15 of the teacher system sends the video signal sent from the second control device 34 of the selected group to the display device 10 and sends the audio signal from the speakers 14-1 and 14-2. By playing back, the presentations and presentations made in the selected group can be communicated to all students.

The configuration of the coordinate input display system according to the fifth embodiment of the present invention will be described with reference to FIG.
In this embodiment, a voice function is added to the coordinate input display system according to the third embodiment shown in FIG. The coordinate input display system according to this embodiment is the same as the coordinate input display system according to the third embodiment, except that the microphone 16
And a speaker 14-1 and a speaker 14-2, and a microphone 37 is added to the group coordinate input system.
The feature is that it is provided.

In this embodiment, the sound input from the microphone 37 of the group coordinate input system is subjected to analog-to-digital conversion by the second control device 34 and then data-compressed as necessary, and converted into digital data by the HUB 62.
Is sent to the first control device 61 via the. Also, the second
The control device 34 transmits coordinate information from the input pen 32 detected by the coordinate detection means 33 to the first control device 61 together with the audio signal.

The voice information and the coordinate information are transmitted as packet data as shown in FIG. Time information, sender system ID information,
By adding packet attribute information for distinguishing whether the information included in the packet is voice or coordinate information, and voice information or coordinate information, the first control device 61 of the receiver is added.
Can return to the original audio signal or coordinate information.

The first control device 61 selects the information from the second control device 34 selected by the display screen selection means 50, returns the image information to the original image information, displays the image information on the display device 11, and displays the audio information. After converting to the original audio signal, the speaker 14-
1 and the speaker 14-2.

In the first control device 61, the sound from the microphone 16 is also superimposed on the sound transmitted from the second control device 34 and reproduced from the speaker, so that, for example, the sound of the student group Since the voice of the teacher's comment can be superimposed and output from the speaker, an effective lesson can be performed.

Further, information of coordinates and voice from the coordinate input display system for each group is recorded in the storage device 65 as a data table shown in FIG.
Since a group can be selected later from the display screen selecting means 50 and character / graphic information and voice can be reproduced, an effective lesson can be performed.

[0072]

According to a first aspect of the present invention, there is provided a coordinate input display system in which a display device is provided on the teacher side, a display device provided with coordinate detection means for each group is provided on the student side, and the teacher has a coordinate input device provided for each group. By selecting the coordinate information sent from the device and displaying it to all the members, the presentation for each group can be easily advanced.

In the coordinate input display system according to the second aspect, a display device having a coordinate detection function is also provided on the teacher side.
The student places a display device provided with coordinate detecting means for each group. The controller on the teacher side and the controller on the student side are connected by a network or the like, and each coordinate information is transmitted from the controller on the student side to the controller on the teacher side. Since the teacher can also directly input the character / graphics into the display device, an effective lesson can be performed.

In the coordinate input display system according to the third aspect, when the coordinate information from the control device on the student side selected in the second aspect is displayed on the display device on the teacher side, it is provided in the control device on the teacher side. Since the coordinates can also be input from the coordinate detecting means, the teacher's comments can be easily added to the student's presentation.

In the coordinate input and display system according to the fourth aspect, a storage device is provided in the control device on the teacher side, and is acquired by the coordinate detection means on the teacher side and the student side and stored in the storage device. Can be reproduced by writing the specified information, thereby achieving the above object.

According to a fifth aspect of the present invention, there is provided a coordinate input display system according to the first aspect, in which a speaker is provided on the display device on the teacher side, a microphone is provided on the control device on the student side, and the coordinate information from the student side is selected by the means. When the selected coordinate information is displayed on the teacher's display device, the sound from the selected student's microphone is reproduced from the main speaker provided on the teacher's side, so that each group can be effectively presented. .

According to a sixth aspect of the present invention, there is provided a coordinate input display system according to the second aspect, wherein a microphone and a speaker are provided in the teacher's device, and a microphone is provided in each of the student's control devices.
When the coordinate information selected by the means for selecting the coordinate information from the student is displayed on the display device on the teacher side, the sound from the selected microphone on the student side is reproduced from the main speaker provided on the teacher side, and at the same time, the teacher By superimposing and replaying the comment from the speaker, the presentation for each group can be made effectively.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a functional configuration of a coordinate input display system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a functional configuration of an input pen used in the present invention.

FIG. 3 is an explanatory diagram of a coordinate input in the coordinate input system.

FIG. 4 is a block diagram showing a functional configuration of a second control device.

FIG. 5 is a diagram showing an example of a signal format from a pen.

FIG. 6 is a block diagram showing a configuration of a coordinate input system according to a second embodiment of the present invention.

FIG. 7 is a diagram showing a format example of coordinate information from a coordinate input system.

FIG. 8 describes an example of a coordinate input system selection screen.

FIG. 9 is a block diagram showing a functional configuration of a coordinate input display system according to a third embodiment of the present invention.

FIG. 10 is a block diagram illustrating a functional configuration of an input pen.

FIG. 11 is a diagram showing a format example of coordinate information recorded in a control device.

FIG. 12 is a block diagram showing a functional configuration of a coordinate input display system according to a fourth embodiment of the present invention.

FIG. 13 is a block diagram showing a functional configuration of a coordinate input display system according to a fifth embodiment of the present invention.

FIG. 14 is a diagram showing a format example of information from a coordinate input system.

FIG. 15 is a view showing an example of a format of coordinate / voice information recorded in a control device.

[Explanation of symbols]

 Reference Signs List 10 display device 11 display device 111 first ultrasonic sensor 112 optical sensor 113 second ultrasonic sensor 12 input pen 121 pen shaft 13 coordinate detecting means 14-1 speaker 14-2 speaker 15 signal selecting means 16 microphone 30 for group Coordinate input display system 31 Whiteboard 311 First ultrasonic sensor 312 Optical sensor 313 Second ultrasonic sensor 32 Input pen 321 Pen tip 322 Micro switch 323 Pen control unit 324 Battery 325 Ultrasonic wave generating means 326 Light emitting means 33 Coordinate detection Means 34 Second control means 341 CPU 342 ROM 343 RAM 344 VRAM 345 Display circuit 346 Coordinate detection means interface 347 Network interface 348 Storage interface 35 Display 36 Storage device 37 Microphone 50 Display screen selection means 61 First control device 62 HUB 65 Storage device

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B087 AA09 AA10 AB01 AE02 AE03 BC03 CC01 DD10 DE09

Claims (11)

[Claims] A first display device, a second display device, a second coordinate detection device for detecting coordinates input to the second display device, and coordinate information from the second detection device. One or more sets of a second coordinate input system constituted by a second control device to be acquired, and means for selecting and displaying information from the one or more sets of the second coordinate input system on the first display device And a coordinate input display system. 2. A first display device, first coordinate detection means for detecting coordinates input to the first display device, and coordinate information obtained from the first detection means, and the first A first coordinate input display system comprising a first control device for displaying on a display device, a second display means, and a second coordinate detection means for detecting coordinates inputted to the second display means And a second step of acquiring coordinate information from the second detecting means.
One or more sets of second coordinate input systems constituted by the first and second control devices; means for transmitting coordinate information obtained from the one or more sets of second coordinate input systems to the first coordinate input display system; And a means for selecting coordinate information acquired from one or more sets of the second control device and displaying the selected coordinate information on the first display device. 3. When the coordinate information from the second coordinate input system selected in claim 2 is displayed on the first display device, the coordinate detection means provided in the first control device also supplies the coordinates. A coordinate input display system characterized by being able to input an image. 4. The coordinate input device according to claim 2, wherein a storage device is provided in the first control device, and the coordinate information acquired by the first and second coordinate detection means is stored in the storage device. Display system. 5. The first display device according to claim 1, wherein a speaker is provided, and a microphone is provided in each of at least one set of second coordinate input systems, and coordinate information from the second coordinate input system is selected. When selected by the means and displayed on the first display device, sound from a microphone provided on the selected second coordinate input system is reproduced from a speaker provided on the first display device. Coordinate input display system. 6. The first control device according to claim 2, wherein a speaker is provided, and a microphone is provided in each of at least one set of second coordinate input systems, and coordinate information from the second coordinate input system is selected. When selected by the means and displayed on the first display device, sound from a microphone provided on the selected second coordinate input system is reproduced from a speaker provided on the first control device. Coordinate input display system. 7. A coordinate display device having display means for displaying coordinate information input from an external coordinate input device, wherein a display screen selection for selecting coordinates from a plurality of coordinate input devices and outputting the selected coordinates to said display means. A coordinate display device comprising means. 8. The coordinate display device according to claim 7, wherein a coordinate detecting means for detecting the coordinates input to said display means, and coordinate information is obtained from said coordinate detecting means and displayed on said display means. A coordinate display device provided with a control device. 9. The coordinate display device according to claim 8, wherein a coordinate detection unit is provided in the display unit, and coordinates can be input from the coordinate display unit. 10. The coordinate display device according to claim 8, wherein a storage device is provided in said control device, and coordinate information is stored in said storage device. 11. The coordinate display device according to claim 8, wherein said coordinate display device includes a speaker and means for selecting coordinate information from an external coordinate input device, and at least one set of external coordinates is provided. A signal from a microphone provided in the input device is selected by a means for selecting coordinate information from an external coordinate input system, the coordinate information is displayed on a display means, and a signal from the microphone is reproduced from a speaker. Coordinate display device.