JPS63242055A - Conference device using projector - Google Patents

Abstract

PURPOSE:To obtain a conference device suitable for a conference having lots of participants by using an overhead projector as a picture display section so as to project originals stored as a file already onto a screen. CONSTITUTION:An explainer uses a keyboard section 6a to retrieve a required picture from a data storage section 7a and displays it on picture display sections 2a, 4a. An ID number of the retrieved picture information is transferred to an opposite conference device through communication control sections 9a, 9b. An opposite conference control section 8b retrievs the data storage section 7b of its own device by the ID number and displays the corresponding same picture onto picture display sections 2b, 4b. The explainer applies presentation by using a stylus or the like so as to designate a picture to the coordinate input sections 3a, 5a while observing the picture displayed on the picture display section 2a directly.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical field to which the invention pertains) The present invention relates to technology in the field of input/output devices for documents, etc. used in conferences, in conference devices used alone or between remote locations using transmission lines. be.

(Prior art) Conventionally, devices that control transmitted light and project images using devices such as liquid crystals that can be turned on and off for each pixel have been attached or integrated as shown in Figure 3. Ta.

FIG. 3 is a diagram illustrating a conventional apparatus for controlling transmitted light and projecting an image.

FIG. 4 is a diagram showing a CRT display device used in a conventional electronic conference.

Furthermore, as shown in Fig. 4, conventional image-based multi-person electronic conferencing devices use CRTs to display documents used in meetings.
display devices were used. For this reason, the same display device can only be viewed by about 2 to 3 people, making it difficult for conference participants to meet, and since multiple display devices are required for meetings with a large number of people, the device configuration is also large. It was complicated and expensive.

(Object of the invention) The object of the invention is to provide an electronic conference device using images.
An overhead projector (hereinafter ○
By projecting the text M (manuscript) that has already been stored as a file onto a screen using a computer (abbreviated as HP), a conference device that can be adapted to meetings with a large number of people can be constructed, and furthermore, by using a communication circuit to connect to a remote location. The aim is to enable meetings between people.

Hereinafter, an embodiment in which a personal computer is used as a control unit using a screen will be described in detail.

(Structure of the Invention) FIG. 1 shows the structure of an OHP image display unit coordinate input unit type tablet that integrates a transparent coordinate input unit of a transmitted light control type OHP image display unit.

Reference numeral 1 indicates a normal OHP device, and reference numeral 2 indicates an oHP image display unit, which controls on/off of the liquid crystal shutter using a liquid crystal shutter, etc., and projects image information onto a screen by blocking light from the HP light source.

This image display section is directly connected to the standard video output of the personal computer, and the image displayed on the personal computer CRT is directly projected onto the HP screen.

3 is a transparent coordinate input section installed on the second surface of the OHP image display section, which transfers the coordinate values of the stylus to the main body of the conference apparatus.

FIG. 2 is a diagram showing the system configuration of the conference device of the present invention.

4 is an image display section, which uses a normal computer CRT;
1 is a coordinate input unit, 6 is a keyboard unit, 7 is a data storage unit that stores image information, 8 is a control unit, 9 is a communication control unit, 10
1 is an image scanner unit that inputs binary images such as figures and graphs, 11 is a video input unit, and 12 is a printer unit that makes a hard copy of image information.

Next, a conference using the plenary conference device will be explained step by step from the creation of one document to the end of the conference.

■ Input of information Process the manuscript for the meeting using a word processor on your computer.
If it is a diagram that is already written on paper, etc., the image scanner section (10a) is used, and if it is an object, a photograph, etc., a camera is used as the video input section (lla), or an input device suitable for each medium is used. Computer data storage section (7a
) is used to store image information.

■ Data transfer between conference devices When conducting a teleconference in a remote location, it is necessary to transfer the image information used for the conference before using it. This includes advance transfer, where everything is transferred in advance, and on-demand transfer, which transfers everything when it is needed.

A suitable transfer method is selected depending on the characteristics (for example, transmission speed) of the transmission path used between the conference devices. For example, when a modem is used on a telephone line, the information transmission speed is low and requires a long transfer time.

Therefore, if on-demand transfer is used, it is expected that the conference will be interrupted each time a new document is used, so advance transfer is appropriate in this case. In the case of advance transfer, only limited information such as various control information such as display control information and drawing information is used during the communication conference.

Thereafter, all documents used in the conference are transferred in advance and transferred to the data storage section (7a, 7b) of each teleconference device before the conference starts.
).

■Conference In order to realize the same conference environment in a teleconference, the same image is displayed on the display section of each conference device. First, devices for holding a conference are connected via communication control units (9a, 9b), respectively. The presenter uses the keyboard section (6a) to search for the necessary image from the data storage section (7a) and displays it on the image display section (2).
a, 4a).

The ID number of this searched image information is
a, 9b) to the other party's conference device.

The other party's conference device control section (8b) searches the data storage section (7b) of its own device using this ID number and displays the image display section (2b).
, 4b), the same corresponding images are displayed.

Next, the presenter makes a presentation while directly using the image displayed on the image display section (2a) and instructing the image on the coordinate input section (3a, 5a) using a stylus or the like.

The control unit (8a) samples the coordinate values of the stylus from the coordinate input unit (3a, 5a) and transfers the coordinate values to the other party's conference device via the communication control unit (9a, 9b).

The other party's conference device control section (8b) displays an instruction mark (pointer) on the display section (2b) of its own device based on these coordinate values.

Conference participants receive explanations by viewing the image projected on the screen and the pointer superimposed on it. Similar to the pointer, superimposing a drawing on a display image is done by instructing the control unit (8a) from the keyboard (6a), etc., and then connecting the sampled coordinate values with a straight line while interpolating them. At the same time as displaying the drawing on the image display section (2a, 4a), the coordinate values are transferred to the other party's conference device, and the other party's conference device interpolates and connects them with a straight line.
b).

All of these operations are performed in all the conference devices participating in the current conference, and can also be used for meetings between persons in charge using a single drawing or the like other than conference explanations.

■ After the Conference The image information used in the conference is outputted from the printer section (12) as a hard copy after the conference ends, if necessary. Furthermore, by outputting the image information to a flexible disk or the like, it can be easily reused and stored.

In this way, by connecting the commonly used OHP and a conference device using a personal computer, and adding a communication control unit to control the conference, it can be done inexpensively, easily, effectively, and efficiently anywhere. meetings can be held.

(Effects of the Invention) - Explanatory materials for meetings can be easily created by using documents and charts created with a word processor or the like that are stored in the data storage section.

(2) By projecting images stored in the data storage section using OHP, there is no need to prepare display sections for each number of people, and a conference device for a large number of people can be constructed at low cost.

■ Presentations become more effective by enabling drawing input using the coordinate information input section superimposed on the display section.

■ A single conference device can control the screens of multiple devices (devices in remote locations, etc.), making it possible to realize a device with good operability.

■ In a conference involving multiple conference devices using a communication line, by temporarily stopping the sending of various control codes to other devices, preliminary discussions can be held between the devices alone without being seen by the participants on the other device. Can be done.

■ OHP river surface image display unit coordinate input unit integrated tablet,
A personal image display unit that integrates a flat display device such as a liquid crystal, plasma, or EL and a coordinate input unit, a flat tablet with an integrated coordinate input unit, a configuration that uses a display and a coordinate input unit separately, etc., as appropriate depending on the number of users, etc. By changing the configuration, it is possible to configure a cheaper and simpler conference device without changing the configuration of other parts of the device.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of an OHP image display section coordinate input section type tablet that integrates a transmitted light control type OHP image display section and a transparent coordinate input section, and FIG. A system configuration diagram, FIG. 3 is a diagram illustrating a conventional device that controls transmitted light to project an image, and FIG. 4 is a diagram showing a CRT display device used in a conventional electronic conference. 1...○HP (overhead projector) device, 2.4... Image display section, 3... Transparent coordinate input section, 5... Coordinate input section, 6... Keyboard section, 7... Data storage section, 8...Control section, 9
... communication control section, 10 ... image scanner section,
11...Video input section, 12...Printer section, 13.
··network. Fig. 1 1...OHP reward device...Image table H part 3° Ni-dispatch input commander Fig. 3 (a) (b) Fig. 4

Claims (3)

[Claims] (1) In a conference device that uses images such as drawn images and documents for explanations, questions and discussions, etc., means for storing signalized images called image information, and means for communicating with other devices and networks. and a means for controlling the entire device, a means for instructing the operation of the conference device, a means for projecting and displaying image information on a screen, and a means for inputting coordinate information such as drawing and pointing, As a means for projecting and displaying the image information on a screen,
The image display section for the overhead projector is a transmitted light control type that is installed on the document table of the overhead projector and controls the on/off of the shutter of transmitted light for each pixel. - Equipped with a transparent coordinate input section for inputting coordinate information such as pointing, searches the accumulated image information, projects the image information on the screen using the image display section for the overhead projector, and displays it on the image display section for the overhead projector. What is claimed is: 1. A conference device using a projector, characterized in that a designated point is displayed on a screen by designating an image using a transparent coordinate information input unit. (2) In a system in which multiple conference devices are connected to each other via communication lines, the same image information stored in each device can be
Search based on the instructions from the conference equipment, project the same image on the screen on all devices, use the transparent coordinate input unit to specify the image displayed on the image display unit for the overhead projector, and connect it with a communication line. The projector according to claim (1) is characterized in that the instruction information is transferred to a conference device such that the instruction location is presented even on a device other than the conference device inputting the instruction. Conference equipment. (3) In the conference device, in addition to the transparent coordinate information input section installed on the top surface of the image display section for the overhead projector, the display image can be specified using the coordinate information input section installed separately from the conference device. , Claim No. 1 is characterized in that the indicated point is displayed on the screen.
Conference equipment using the projector described in ).