JPH089075A - Device and system for image input and output - Google Patents

Abstract

PURPOSE:To easily and quickly attain the pointing in the case of remote presentation in a video conference or the like. CONSTITUTION:When an original selection section 50 selects an original image on the presentation side, the selected original image is displayed on an original image display section 53 of a display tablet 52 of its own equipment by an original image display control section 51 and the selected original image information is sent to an opposite device via a transmission section 55. The sent original image is displayed on an original image display section 59 of a display tablet place on an original platen 70 of an OHP of the opposite device. When position information representing a specific position on the original image is entered by using a position information entry section 54 of th display tablet 52 of its own device on the presentation side, the position information is sent to the opposite device via a transmission section 55 and a cursor display control section 61 displays a cursor 61 at a position corresponding to the original image displayed on the original image display section 59 of the display tablet 59 based on the sent position information in the opposite device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image input / output device and an image input / output system suitable for use in a remote presentation at a video conference.

[0002]

2. Description of the Related Art Conventionally, an OHP (Over Head Projector) has been widely used when giving various explanations at meetings and the like. When using the OHP, the original is pre-baked on a transparent sheet for OHP, and the sheet is replaced for explanation. In recent years, there has been an apparatus which uses a transparent display tablet instead of the OHP sheet and directly displays the image output of the personal computer on the display tablet to replace the OHP sheet. This device is effective when performing a remote presentation in a video conference or the like.

[0003]

However, when performing a remote presentation using the above-mentioned device,
Since the mouse had to be operated on the screen of the personal computer in order to point to a specific point on the displayed image, the operation was troublesome and hindered smooth meeting execution. It was

Therefore, it is an object of the present invention to provide an image input / output device and an image input / output system capable of pointing easily and quickly during a remote presentation in a video conference or the like.

[0005]

An image input / output device of the present invention selects a document image and a display tablet provided with image display means and position information input means for inputting position information indicating a pointing position. Image selection means, display control means for displaying the original image image selected by the original image selection means on the image display means of the display tablet, original image information selected by the original image selection means, and the display Information transmission means for transmitting the position information input by the position information input means of the tablet, information receiving means for receiving the document image information and position information, and correspondence based on the document image information received by the information receiving means Display control means for displaying the image of the original on the image display means of the display tablet, and information received by the information receiving means. It is characterized in that it has a position information display means for displaying the pointing mark in a corresponding position of the image display unit of the display tablet on the basis of the position information.

Further, the display tablet is characterized in that it is constructed by stacking a pressure sensitive panel and a display panel.

The image input / output system of the present invention includes a first display tablet having image display means and position information input means for inputting position information indicating a pointing position, and an original for selecting an original image. Image selection means, display control means for displaying the document image selected by the document image selection means on the image display means of the first display tablet; document image information selected by the document image selection means; Information transmitting means for transmitting the positional information input by the positional information inputting means of the first display tablet, a second display tablet having at least an image displaying means, and the document image information obtained from the information transmitting means. Display control means for displaying the corresponding original image on the image display means of the second display tablet, and the information transmission means. Is by receiving the location information is characterized in that it has a position information display means for displaying the pointing mark in a corresponding position of the image display unit of the second display tablet.

[0008]

When performing a remote presentation in a video conference by the apparatus and system of the present invention, when the original image to be explained is selected by the original image selecting means on the presentation side, the original is selected by the display control means. The document image is displayed on the display tablet of the user, and the selected document image information is transmitted to the other party via the information transmitting means. Then, the transmitted document image is displayed on the display tablet of the other party by the display control means. Then, when the presentation side inputs the position information indicating the pointing position on the document image using the position information input means of his / her display tablet, the position information is sent to the other party through the information transmission means. On the other side, the display control means displays the pointing mark at the corresponding position of the document image displayed on the image display means of the display tablet based on the transmitted position information. Therefore, the partner device side can recognize the location pointed by the presenter by the pointing mark.

Further, when the display tablet is constructed by stacking the pressure sensitive panel and the display panel, the presenter only touches a portion to be pointed on the original image displayed on the display panel. Since the position information including the coordinate information indicating the position can be output, the remote pointing can be performed easily and surely.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a functional configuration diagram showing elemental features of the present invention. When a remote presentation is performed using the apparatus and system of the present invention, when a document image to be explained is selected by the document selection unit 50 on the presentation side, the document image display control unit 51 selects it. The document image is displayed on the document image display unit 53 of the display tablet 52 on the device side, and the selected document image information is transmitted to the partner device via the transmission unit 55. Then, the transmitted document image information is received by the receiving unit 56 of the partner device, and the received document image display control unit 5 is received.
7 is displayed on the original image display section 59 of the display tablet 58 placed on the OHP original table 70. Then, when the presentation side inputs the position information indicating the position to be pointed on the document image using the position information input unit 54 of the display tablet 52 of the own device, the position information is transmitted via the transmission unit 55 to the other party. The receiving unit 5 sends the positional information sent to the device and sent to the partner device.
6, the cursor display control unit 60 displays the cursor 61, which is a pointing mark, at the corresponding position of the document image displayed on the document image display unit 59 of the display tablet 59 based on the position information. Therefore, on the partner device side, the position where the presenter is pointing can be recognized by the cursor.

The original image display control unit 51, the received original image display control unit 57, and the cursor display control unit 60 described above.
Is realized by a system control unit 14, a video interface unit 9, and a data interface unit 12, which are formed by a microcomputer system including, for example, a CPU, a ROM, and a RAM, which will be described later.

FIG. 2 shows an example of the structure of the display tablet. In the figure, reference numeral 111 denotes a transparent pressure-sensitive panel that outputs coordinate information indicating a position where pressure is applied when pressure is applied by touching with a pen or the like.

Reference numeral 112 is a cable for transmitting the coordinate information output from the pressure sensitive panel 111 to the terminal body.

Reference numeral 113 denotes a liquid crystal panel which is in a transparent state when there is no display, and which changes into a state in which a character or a figure does not transmit light when displaying a character or a figure, which constitutes the display panel of the present invention. To do.

Reference numeral 114 is a cable for transmitting image information to be output to the liquid crystal panel 113.

The pressure sensitive panel 111 and the liquid crystal panel 113 are integrally joined by adhesion or the like.

Reference numeral 115 is a storage base for storing the display tablet 11, and the bottom surface 115a is white so that the liquid crystal display can be seen when the display tablet 11 is placed.

When the display tablet 11 is used instead of the OHP sheet, the display tablet 11 is taken out from the storage table 115 and placed on an OHP document table (not shown).

FIG. 3 shows the display tablet 11 shown in FIG.
FIG. 3 is a block diagram showing a configuration of a remote terminal device used in a remote presentation system using the.

In the figure, 1 is a handset which is one of voice input / output means, 2 is a microphone which is one of voice input means, 3 is a speaker which is one of voice output means, and 4 is system control which will be described later. According to an instruction from the unit 14, a process of switching the handset 1, the microphone 2 and the speaker 3 as voice input / output means, an on / off hook detection process of detecting whether the handset 1 is in an on-hook state or an off-hook state, voice input / output When the microphone 2 and the speaker 3 are used as means, an echo canceling process for canceling an echo and a tone generating process such as a dial tone, a ringing tone, a busy tone, a ringing tone and the like are performed. Is a voice encoding / decoding unit that encodes a transmission voice signal and decodes a reception voice signal according to the instruction .

Reference numeral 6 is one of the image inputting means, a camera for inputting a self-portrait and the like, 7 is one of the image inputting means, a document camera for inputting a document and the like, 8 is a camera 6, a document A display for displaying an input image from the camera 7, a received image from the other party, an operation screen, etc., 9 is an instruction of the system control unit 14, a switching process of the image input device, and a display tablet 11 according to the operation of the operation unit A video interface unit 10 for selecting an image to be output, processing for switching the display on the display 8 to an input image, a received image, and an operation screen, and an image signal composition processing for dividing and displaying them on the display 8 is a TTC recommendation JT.
A video encoding / decoding unit that encodes a transmission image signal and decodes a reception image signal according to H261.

Reference numeral 11 denotes a display tablet for displaying a document image and inputting pointing data, which is connected to a data interface section 12 for outputting pointing data and a video interface section 9 for inputting image data, respectively. Has been done.

Reference numeral 12 is a data interface unit for notifying the demultiplexing unit 15 of the transmission data from the display tablet 11 and the system control unit 14 and notifying the received data to the video interface unit 9 or the system control unit 14. Reference numeral 13 denotes an operation unit including a keyboard, a mouse and the like used to input information of the man-machine I / F.

Reference numeral 15 is a voice signal from the voice encoding / decoding unit 5, an image signal from the video encoding / decoding unit 10, and a data interface unit 1 in accordance with TTC recommendation JT-H221.
The data from 2 and the data and command from the system control unit 14 are multiplexed in transmission frame units, and the reception frame is separated into each medium of a constituent unit and notified to each unit. 16 is an ISDN user -A line interface unit that controls lines according to the network interface protocol.

Reference numeral 14 is provided with a CPU, a ROM, a RAM, an auxiliary storage device, etc., monitors the status of each of the above devices, controls the overall apparatus, creates an operation / display screen in accordance with the status, executes an application program, etc. It is a system control unit.

The operation of the system controller 14 of the remote terminal device of the present embodiment having the above configuration will be described with reference to the flowchart of FIG.

First, in step S1, it is determined whether the terminal itself is a terminal for giving a presentation or a terminal for receiving a presentation. Prior to the presentation, this is decided by the upper application or users. If the number of people receiving the presentation is multiple, OHP is used. When the OHP is used, the display tablet 11 is taken out from the storage table 115 and placed on the OHP document table.

If it is determined in step S1 that the presentation is made, the process proceeds to step S2, in which the user giving the presentation uses the mouse of the operation unit 13 and the display 8 to create an OH.
It is determined whether or not a desired document is selected from the P documents. When the document selection operation is detected, the OHP document selected by the presenter is converted into a predetermined display format by the video interface unit 9, and the display tablet 1 is displayed.
1 (step S3), the data of the original page selected by the presenter is displayed on the video encoding / decoding unit 10
After being compressed by, the demultiplexing unit 15 multiplexes it with the audio and video signals and transmits it to the partner terminal via the line interface unit 16 (step S4).

If no selection operation of the original is detected in step S2, the process proceeds to step S5, and the position data output by the presenter touching the pressure-sensitive panel surface of the display tablet 11 outputs the data interface section. It is determined by 12 whether or not it has been received. When the reception of position data is detected, step S
At 6, the received position data is compressed, multiplexed at the demultiplexing unit 15 with the audio and video signals, and transmitted to the partner terminal via the line interface unit 16.

On the other hand, if it is determined in step S1 that the presentation is to be received, the process proceeds to step S7, in which the terminal for presentation is used for presentation via the line interface section 16 and the demultiplexing section 15. It is determined whether OHP image data has been received. When it is detected that the OHP image data is received, the OH received in step S8 is received.
The P image data is converted into a predetermined display format by the video interface unit 9, and the OHP original image is displayed on the display tablet 11.

If the reception of OHP image data is not detected in step S7, step S7 is executed.
9, the presence or absence of pointing position data generated by the presenter touching the pressure-sensitive panel surface of the display tablet 11 via the line interface unit 16 and the demultiplexing unit 15 from the terminal on the presentation side is checked. To judge. If the reception of the position data is not detected, the process returns to step S7, and if the reception is detected, the process proceeds to step S10.

In step S10, the display tablet 11
The cursor is displayed on the display panel 113 at a position corresponding to the received position data. With this cursor display, the side receiving the presentation can recognize the position on the document image pointed by the presenter with a pen or the like at that time.

In the above embodiment, the pressure sensitive panel 111 is used as the position information input means, but the position information input means is not limited to this, and coordinate information can be input on the display tablet 11. Any structure may be used as long as it can meet the requirements.

[0034]

As described above, according to the present invention, the display tablet itself is provided with the position information input means for inputting the position information indicating the pointing position, and the position information is input from the position information input means. Since the pointing mark can be displayed at the relevant place on the image displayed to the other party only by remote control, remote pointing can be performed easily and quickly, and remote presentation in a video conference can be smoothly performed. Becomes

[Brief description of drawings]

FIG. 1 is a functional configuration diagram showing elemental features of the present invention.

FIG. 2 is a diagram showing a configuration example of a display tablet in which the present invention is implemented.

FIG. 3 is a block diagram showing a configuration of a remote terminal device in which the present invention is implemented.

FIG. 4 is a flowchart showing the operation of the embodiment.

[Explanation of symbols]

 7 Document Camera 8 Display 9 Video Interface Section 10 Video Encoding / Decoding Section 11 Display Tablet 12 Data Interface Section 13 Operation Section 14 System Control Section 15 Demultiplexing Section 16 Line Interface Section 50 Original Selection Section 51 Original Image Display Control Section 52 Transmitting tablet 53 Original image display section 54 Position information input section 55 Transmitting section 56 Receiving section 57 Received original image display control section 58 Receiving side tablet 59 Original image display section 60 Cursor display control section 61 Cursor 70 OHP original table 111 Pressure sensitive panel 113 display

Claims (3)

[Claims] 1. A display tablet provided with an image display means and position information input means for inputting position information indicating a pointing position, a document image selection means for selecting a document image, and the document image selection means. The display control means for displaying the document image selected by the image display means of the display tablet, the document image information selected by the document image selection means, and the position information input by the position information input means of the display tablet. Information transmitting means for transmitting, information receiving means for receiving the document image information and position information, and causing the image display means of the display tablet to display a corresponding document image based on the document image information received by the information receiving means. The display control means and the display tablet based on the position information received by the information receiving means. An image input / output device comprising position information display means for displaying a pointing mark at a position corresponding to the image display means. 2. The image input / output device according to claim 1, wherein the display tablet is configured by stacking a pressure sensitive panel and a display panel. 3. A first display tablet having image display means and position information input means for inputting position information indicating a pointing position, original image selection means for selecting an original image, and the original document. Display control means for displaying the document image selected by the image selection means on the image display means of the first display tablet, document image information selected by the document image selection means, and position information of the first display tablet An information transmitting means for transmitting the position information input by the input means, a second display tablet having at least an image display means, and receiving the document image information obtained from the information transmitting means to display a corresponding document image. Display control means for displaying on the image display means of the second display tablet, and reception of the position information obtained from the information transmission means An image input / output system further comprising: position information display means for displaying a pointing mark at a position corresponding to the image display means of the second display tablet.