JPH07143470A - Video conference system - Google Patents

Abstract

PURPOSE:To promote extension of the application of a video conference system by devising the system to be easily revised without troublesome installation work. CONSTITUTION:The system consists of a video conference terminal equipment 1 and plural microphone equipments 10 (10-1, 10-2,...) connecting to the video conference terminal equipment l through a radio signal. A receiver 11 of each of the microphone equipments 10 converts a command radio wave signal received from the video conference terminal equipment 1 into a digital signal. A display device 13 displays an utterance enable/disable state based on a received command signal. A command entry section 15 enters a command indicating a camera position. A transmitter 12 converts a voice signal and a command signal into a radio wave signal and sends the radio wave signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video conference system, and more particularly to a video conference system for controlling a camera position.

[0002]

2. Description of the Related Art Conventionally, as shown in, for example, Japanese Patent Laid-Open No. 2-7775, a camera position of a video conference system is controlled such that a conference attendee or an operator is connected to a video conference terminal by a cable before the conference starts. It was stored in the system using a console or the like.

[0003]

In the above-mentioned conventional video conference system, since the microphone, the control console and the like are connected to the video conference terminal by the cable, the layout is changed depending on the purpose of use of the video conference room. , Special work is required, and the number of people is significantly limited.

[0004]

A video conference system according to the present invention converts a position of a camera into data by a terminal receiver which receives a voice radio wave signal or a command radio wave signal and converts it into a digital signal. A storage circuit for storing the received voice signal, a control circuit for controlling the camera by the storage circuit and outputting a speech permission / non-permission command, and a terminal transmitter for converting the speech permission / prohibition command into a radio signal and transmitting the radio signal. A video conference terminal having the same, a receiver for converting a command radio signal received from the video conference terminal into a digital signal, and a display for displaying a speech permission / non-usable state by the received command signal.
A microphone device for capturing a voice signal, a command input unit for inputting a command for instructing a camera position, and a microphone device having a transmitter for converting the voice signal and the command signal into a radio signal and transmitting the radio signal. .

[0005]

Embodiments of the present invention will now be described with reference to the drawings.

Referring to FIG. 1, a video conference system according to an embodiment of the present invention includes a video conference terminal 1 and a plurality of microphone devices 10 (10-1, 10-1, 10-1 connected to the video conference terminal 1 by radio signals). 10-2, ...). The video conference terminal 1 controls the position of the camera 7 and causes the speaker 9 to output the sound from the monitor 8 and the microphone device which display the image obtained from the camera 7.

The video conference terminal 1 includes a terminal receiver 3 which receives a voice radio wave signal or a command radio wave signal and converts it into a digital signal, and a storage circuit 4 which stores the camera position as data by the received command signal. Is provided with a control circuit 5 for controlling the camera by the received voice signal and the storage circuit 4 and outputting a speech permission / non-permission command, and a terminal transmitter 2 for converting the speech permission / non-permission command into a radio wave signal for transmission. ing.

Each of the microphone devices 10 has a receiver 11 for converting a command radio wave signal received from the video conference terminal 1 into a digital signal, a display 13 for displaying a speaking permission / prohibition state by the received command signal, and a voice signal. It has a microphone 14 for taking in, a command input section 15 for inputting a command instructing a camera position, and a transmitter 12 for converting a voice signal and a command signal into a radio wave signal and transmitting the radio wave signal.

At the time of constructing this video conference system, the recognition code and sampling frequency of each microphone device 10 are stored in the storage circuit 4 in advance.

At the time of changing the layout of the video conference room, in each microphone device 10, the command input section 15 is operated to adjust the camera position. The information obtained by operating the command input section 15 is converted into a command radio wave signal, and the transmitter 12 adds a recognition code to the video conference terminal 1.
Send to.

The video conference terminal 1 receives this command radio signal via the terminal receiver 3. Terminal receiver 3
Has a sampling capability capable of coping with a plurality of reception frequencies, and stores the camera position information of the received command radio signal in the storage circuit 4 in accordance with the recognition code added to the radio signal. The camera control data is set by these procedures.

After the above work is completed, a video conference is actually held. When the user's speech is made in the arbitrary microphone device 10, the transmitter 12 adds its own recognition code to the voice signal and then changes the signal into a radio wave signal for transmission. Upon receiving this via the terminal receiver 3, the control circuit 5 of the video conference terminal 1 first confirms whether or not there is a microphone device that is currently speaking.

When there is no other speaker, the control circuit 5 performs the following processing in order to give the microphone device 10 a right to speak.

(1) Microphone device 10 to which a speaking right is given
, The recognition code and the speech permission command are transmitted via the terminal transmitter 2. It should be noted that the radio signal output by the terminal transmitter 2 has a single frequency.
This is a radio signal that can be received by the receiver 12 of 0.

(2) The position control of the camera 7 is performed based on the camera control information in which the recognition code is stored in the corresponding storage circuit 4.

(3) Microphone device 10 to which a speaking right is given
The received voice signal of 1 is connected to the codec 6 to be transmitted to the circuit network, and the voice radio signal of another microphone device is discarded.

All microphone devices 10 constantly monitor commands from the video conference terminal 1. When the microphone device 10 that has acquired the speaking right receives the speaking permission command to which its own recognition code is added, it outputs this to the display 13 to notify the user that the speaking right has been acquired.

When the microphone device 10 which has acquired the right to speak and finishes speaking, the transmission radio signal of the voice and the recognition code is cut off. When the signal from the microphone device 10 that has acquired the right to speak has been cut off for a certain protection time or longer, the control circuit 5 determines that the microphone device 10 has finished speaking.
The cancellation code is notified by transmitting the identification code of the microphone device 10 and the call disabling command. At this time, if there is a speaking right acquisition request from another microphone device, in order to give the speaking right to it, the same processing as the above (1) to (3) is performed. If there is no request for acquisition of the right to speak from another microphone device, the settings of the audio signal and the camera 7 are not particularly changed.

When the user tries to speak in the microphone device 10 and another microphone device is speaking, the control circuit 5 performs the following processing on the microphone device 10.

(1) To the microphone device 10, in order to indicate that the speech is currently impossible, the recognition code and the speech disable command are transmitted via the terminal transmitter 2.

(2) The voice radio signal from the microphone device 10 is discarded.

When the microphone device 10 receives a call disabling command to which its own recognition code is added, it outputs this to the display 13 to notify the user that the call is currently disallowed.

[0023]

As described above, according to the present invention, the adjustment of the camera position and the acquisition of the floor can be performed by radio waves. This makes it possible to easily change the layout of the video conference room according to the purpose of use and scale, without complicated construction, because a dedicated video conference desk is not required when constructing the system. It promotes the expansion of purpose.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 Video Conference System 2 Terminal Transmitter 3 Terminal Receiver 4 Storage Circuit 5 Control Circuit 6 Codec 7 Camera 8 Monitor 9 Speaker 10 Microphone Device 11 Receiver 12 Transmitter 13 Display 14 Microphone 15 Command Input Section

Claims (1)

[Claims] 1. A terminal receiver for receiving a voice radio wave signal or a command radio wave signal and converting it into a digital signal, and a storage circuit for converting the camera position into data by the received command signal and storing the received voice signal and the storage. A video conference terminal having a control circuit for controlling the camera by the circuit and outputting a speech permission / non-permission command, and a terminal transmitter for converting the speech permission / non-permission command into a radio signal and transmitting the radio signal, and receiving from the video conference terminal A receiver that converts the command radio wave signal into a digital signal, a display that displays the speaking enable / disable state by the received command signal, a microphone that captures a voice signal, and a command input unit that inputs a command to instruct the camera position. , A transmitter that converts a voice signal and a command signal into a radio signal and transmits the radio signal. Video conference system, characterized in that it comprises a device.