KR20020013310A - A video conference system and controling method thereof - Google Patents

Abstract

PURPOSE: A video conference system and a method thereof are provided to realize a smooth video conference by transmitting only the image and voice of a speaker to an opposite via speaker tracking function. CONSTITUTION: A video conference system comprises plural wireless microphone remote controls(11-1,11-2,11-3,11-4), a camera controller(12) controlling an image pickup direction toward the face of a speaker via the plural wireless microphone remote controls, and a wireless controller(13) transmitting the face image of the speaker picked up by a camera and the audio signals transmitted via a wireless channel from the wireless microphone remote controls. When a microphone is driven, other microphones are not operated. Therefore, a single speaker pressing a control key of a remote control is displayed on the monitor of an opposite and only the voice of the speaker is transferred to the opposite.

Description

Video conferencing system for small businesses and its control method {A VIDEO CONFERENCE SYSTEM AND CONTROLING METHOD THEREOF}

The present invention relates to a video conference system and a control method thereof. In particular, only a video and a voice of a speaker who actually speaks in performing a video conference through a speaker tracking function and a tracked voice transmission function. The present invention relates to a small business video conferencing system and a control method thereof, which are delivered to a conference counterpart so that a smooth video conference can be performed.

Video conferencing system is a system that allows multiple people from different places to have a meeting while looking at each other's faces using video transmission equipment such as video synthesis, separation, compression transmission, etc. based on a video camera. This typically allows meetings at different remote locations without having to face the large business or research institute.

Currently, a video conferencing system that is generally used is a method for taking an image by adjusting the direction of the camera separately to the direction of the specific speaker when a specific speaker among a plurality of speakers speaks, or for adjusting the direction of the camera. A method of artificially adjusting a separate control device was used. When another speaker starts to speak, the camera is adjusted to another speaker side in the same manner as described above.

As described above, an inconvenience of having to reorient the camera to a corresponding speaker occurs whenever a plurality of speakers speak.

In addition, "Video Conferencing System and Camera Control Method" has been proposed in "Domestic Application No. 1996-045153, Video Conferencing System and Camera Control Method, Applicant Samsung Electronics Co., Ltd." to solve the above problem. It is configured as the state shown in FIG. 1 attached.

The feature of the previously applied "video conferencing system and camera control method" is to detect the speaker's voice, so that when the speaker speaks, the corresponding speaker is displayed, when all the speakers speak at the same time A video conferencing system and camera control method capable of smoothly performing video conferencing by controlling a camera to be displayed on a screen.

However, the "video conferencing system and camera control method" necessarily requires a voice recognition function. This means more elaborate and consequently increased construction costs. This means that the cost of the video conferencing system will be increased, and in particular, the cost of the cost will be increased in the case of a small company which needs more video conferencing system.

In addition, in a narrow conference room, multiple speakers can often speak at the same time during a meeting. In this case, camera control through voice recognition results cannot accurately determine the required speaker, which means that the camera can accurately It means it won't rotate by setting. In order to do this properly, more expensive voice recognition equipment is needed. This also means an increase in the cost of building a videoconferencing system.

In addition, there may be a case in which the speaker moves the position with the microphone to proceed with the meeting. In this case, the videoconferencing system according to the related art has a problem that the speaker cannot move. This is a problem that occurs when the video conferencing system rotates the camera direction only in a predetermined direction in which the microphone is installed. That is, during a video conference in the prior art, meeting participants have the inconvenience of having to join the meeting without moving in a predetermined seat where the microphone is located.

Therefore, the proposed "video conferencing system and camera control method" is not only suitable for use in a small conference room of a small company, but also has a limitation in use, in which a speaker cannot move freely and must conduct a meeting in a fixed seat. will be.

Accordingly, an aspect of the present invention is to provide a videoconferencing system and a method of controlling the same, which can solve the problems caused in the related art as described above.

Another object of the present invention, through the speaker tracking function and the tracked voice transmission function of the speaker only, so that only the video and voice of the speaker who is actually speaking in the video conference is delivered to the other party so that the video conference can be performed smoothly. To provide a small business videoconferencing system and its control method.

In order to achieve these objects, the present invention, after paying at least one or more wireless microphone remote control to the meeting participants, if one of the participants to operate the wireless microphone remote control provided to the participant, to the speaker side operated Controlling the direction of the video camera so that the shooting direction of the video camera is switched so that the video of the speaker is displayed on the monitor of the conference counterpart, and at the same time, only the microphone of the wireless microphone remote controller of the speaker who has operated the wireless microphone remote controller is operated. The microphones of the wireless microphone remote controllers provided with the remote control are controlled so that the microphones of the remote controllers are not driven unless a separate operation is made by the corresponding participants, so that only the video and audio of the speaker who is actually speaking in the video conference are delivered to the conference partner. To allow the process to proceed We propose a small business videoconferencing system and a control method thereof.

1 is a diagram showing an example of a video conferencing system that achieves a conventionally proposed video camera control.

2 is an overall configuration diagram of a videoconferencing system according to a preferred embodiment of the present invention.

3 is a detailed block diagram of a camera control apparatus according to an embodiment of the present invention shown in FIG.

Figure 4 is a detailed block diagram of a wireless microphone remote control according to an embodiment of the present invention shown in FIG.

FIG. 5 is a detailed block diagram of a videoconferencing radio control apparatus according to a preferred embodiment of the present invention shown in FIG. 2.

6 is a flowchart of a camera control method according to an exemplary embodiment of the present invention.

Figure 7 is a clouded road of the wireless microphone remote control control method according to an embodiment of the present invention.

8 is a flowchart of a method for controlling a video conferencing wireless control device according to an exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as much as possible even if they are displayed on different drawings. In addition, in the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention, such as specific processing flows. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

2 is an overall configuration diagram of a videoconferencing system according to a preferred embodiment of the present invention. 3 is a detailed block diagram of the camera control apparatus shown in FIG. 2, FIG. 4 is a detailed block diagram of the wireless microphone remote controller illustrated in FIG. 2, and FIG. 5 is a detailed block diagram of the video conference radio control apparatus. 6 is a flowchart illustrating a control method of the camera control apparatus illustrated in FIG. 3, FIG. 7 is a flowchart illustrating a method of controlling the videoconferencing radio control apparatus illustrated in FIG. 5, and FIG. 8 is a radio illustrated in FIG. 4. This is Myeongneungdo which shows how to control the microphone remote control.

Components having the same function as the components shown in each of the drawings bear the same reference numerals and description thereof will be omitted.

First, referring to FIG. 2, a video conference system according to an embodiment of the present invention

A plurality of wireless microphone remote controllers 11 are provided for remotely controlling the rotation operation of the video camera 12 through the speaker's operation, converting the speaker's voice into a voice signal, and transmitting the voice signal to the video conferencing wireless control device 13. And a camera controller 12 which rotates an image capturing direction to the speaker's face through adjustment of the plurality of wireless microphone remote controllers, an image of the speaker's face photographed by the camera of the camera controller 12, and a plurality of cameras. The wireless microphone remote controller 11 is configured to include a wireless control device 13 for transmitting a voice signal transmitted through a wireless channel to a conference counterpart.

In its actual use, the camera control device 12 is located at the top of the center of the table where the meeting takes place. The position of the camera control device 12 can be changed as appropriate by the user. It is also free to move to another conference table.

3, the detailed configuration of the camera control device 12 is as follows.

A plurality of light receiving elements 10 for receiving the infrared rays transmitted from the wireless microphone remote control 11 located in different directions. The light receiving element 10 is provided differently according to the number of attendees. The greater the number of light receiving elements 10 provided, the more precise the control of the camera direction. And a remote control signal detecting unit 50 which detects which light receiving element 10 receives infrared rays and outputs a detection result. The rotation position of the camera is determined by the controller 20 based on the output detection result. And an image camera rotation driver 30 which enables rotation of the image camera in the direction of the speaker operating the wireless microphone remote controller 11 under the control of the controller 20. This is implemented as a predetermined drive mechanism capable of rotating 360 degrees. Usually, it is applied as a motor which can control the rotation radius and speed.

Then, the image camera 70 for photographing the speaker operating the wireless microphone remote controller microphone 11, the photographing image processing unit 40 for A / D conversion and DSP compression of the photographed image, and supplying the operating power of the respective components. It comprises a power supply unit 60, an external interface 80 for transmitting the photographed speaker image to the wireless control device 13 according to the present invention. The video camera 12 is used in a state in which it is placed at an appropriate position on the top of a small conference table. Its position is constantly movable.

And when the detection of the infrared signal transmitted from the specific wireless microphone remote control 11 through the light receiving element 10 is made, the image camera 70 in the direction of the light receiving element is changed if the light receiving element is changed in such a state. ) Is rotated.

In addition, the image camera 70 has a zoom in / out function and an auto focusing function implemented thereon, thereby clearly capturing a photographing object. This can be applied as an image camera already implemented and implemented.

Referring to FIG. 4, the detailed configuration of the wireless microphone remote controller 11 is as follows.

First, an operation key 100 for outputting a key operation state of a speaker and a light emitting unit 120 for emitting infrared rays when there is an operation of the operation key 100 are provided. In addition, the display unit 110 is configured to display a light emitting state as an LED so that a user can know whether the light emitting unit 120 emits light, and is driven by converting the speaker's voice into an electrical signal and outputting the same through a microphone. The microphone driving unit 130 is provided. The voice input through the operation of the microphone driver 130 is input to the voice modulator 140 for modulating the speaker's voice and modulated, and the modulated voice is wirelessly transmitted. The wireless transmission is performed through the control of the wireless transmitter 160 to wirelessly transmit a signal that there is an operation when the operation key is operated.

In addition, the wireless microphone remote controller 11 includes a battery 170 for supplying operation power of respective components, and a wireless receiving unit 150 for receiving a microphone driving signal transmitted from the video conference wireless control device 13. The wireless microphone remote controller 11 is provided to each speaker who attends a meeting.

The provided wireless microphone remote controller is used in different directions in which the speakers are placed. When the microphone operation of one wireless microphone remote controller 11 is performed, the microphone of the other wireless microphone remote controller 11 stops the operation. Operation here refers to an operation of receiving a speaker's voice and outputting it as an electrical signal.

For example, when a speaker who wants to speak during a meeting presses an operation key of the wireless microphone remote controller 11, infrared light is emitted from the wireless microphone remote controller 11. Then, when the wireless signal is not received from the video conferencing wireless control device 13 due to a separate microphone driving stop, the microphone is driven, and in this state, the voice of the speaker is input to perform modulation and wireless transmission processing. do.

Then, when the speaker moves the wireless microphone remote control, the speaker presses the remote control operation key in the moving direction. Then, the infrared light emitted from the wireless microphone remote controller 11 is detected by the light receiving element in the camera control device 12 installed in the corresponding direction, and through this result, the direction of the image camera 70 is changed.

Referring to FIG. 5, the detailed configuration of the radio controller 13 is as follows.

The radio controller 13 includes a radio transmitter / receiver 190 that transmits a microphone driving stop signal to the radio microphone remote controller 11 and receives a voice signal transmitted wirelessly from the remote controller microphone 11. In addition, the power supply unit 220 for supplying the operating power of the respective components, the A / D conversion of the audio signal transmitted wirelessly, the audio conversion processing unit 200 for DSP compression processing, the image taken and transmitted from the camera 12 And an external interface 210 for mixing a voice signal and transmitting the voice signal through a network to a conference counterpart. The network may include a cable broadcasting network (CATV), an ISDN, an ADSL, a PSTN, an ATM, a wireless network, and a LAN.

Then, by detecting the rotational position of the camera according to the detection result of the infrared light receiving unit transmitted from the camera control device 12, the driving stop of the remote control microphone 11 other than the wireless microphone remote control 11 located at the rotational position of the camera. Output the signal wirelessly. The detection of the wireless microphone remote control 11 located at the rotational position of the camera is performed by receiving a signal that there is operation from the wireless microphone remote control 11.

The operation of the videoconferencing system having the above-described configuration is as follows.

First, the initial installation method pays a plurality of wireless microphone remote controllers 11 to the meeting participants at the start of the meeting. Conference attendees sit in the proper position with the wireless microphone remote control 11 provided. Then, the camera controller 12 is installed in the center of the conference table. The next participant is to press the operation key of the paid wireless microphone remote control 11 when you want to speak during the meeting. The intrinsic infrared light is emitted from the wireless microphone remote controller, and the image camera of the camera controller rotates in the direction in which the wireless microphone remote controller is located. The remote control microphone is driven by the microphone, and the other remote control microphone is not operated by the microphone.

Therefore, during the video conference, only one speaker who presses the remote control microphone operation key is displayed on the monitor of the conference counterpart, and only the voice spoken by the one speaker is transmitted. The voices of the other conference attendees are not conveyed, and no video is conveyed.

That is, only the video and audio of the speaker who is currently speaking are transmitted to the other party conducting the video conference through the implementation of the video conferencing system configured as described above.

Thus, smooth video conferencing proceeds.

Next, a flow of a control operation for controlling the camera controller in the videoconferencing system as described above will be described in detail with reference to FIG. 6.

6 is a flowchart illustrating a control method of the camera controller 12 according to an exemplary embodiment of the present invention.

Referring to FIG. 6, when the power is turned on in step S100, an image is captured and transmitted in step S110. In this case, the image capturing is continued unless there is a separate operation.

When the reception of the infrared light emitted from the wireless microphone remote controller 11 is detected in step S120, the received position is detected in S130. This is determined by which light receiving element has infrared detection made.

In step S140, the rotation of the image camera 70 is controlled to the position of the light receiving element receiving the camera position. Then continue to shoot video and transmit.

Similarly, when the reception of the infrared light emitted from another wireless microphone remote controller 11 is detected, the direction of the image camera is controlled to rotate to the position of the detected light receiving element. In that case, it is treated as if there is another speaker's statement, not the previous speaker.

Next, in step S150, it is determined whether there is a power-off operation, and when the power-off operation is detected, the photographing and transmission of the image and the rotation operation of the image camera 70 are terminated.

7 is a control flowchart illustrating a control method of the videoconferencing radio controller 13 according to an exemplary embodiment of the present invention.

Referring to FIG. 7, in operation S200, video and audio transmitted from the camera controller 12 and the wireless microphone mute remote controller 11 are transmitted. This is done by wired connection with the fraud camera control.

In step S200, the image and sound transmitted from the camera controller 12 are transferred to the external network.

In operation S210, the remote controller microphone 11 detects whether a control key switching on wireless signal is received.

When the reception of the switched-on wireless signal is detected in step S210, the wireless microphone remote controller 11 that transmits the switched-on wireless signal is detected. The detection process is performed by assigning different wireless channels to each wireless microphone remote controller, and then, through which wireless channel a wireless signal is transmitted according to switching on. The wireless channel allocation scheme is a multi-frequency allocation (MCA) scheme used in a typical home wireless telephone.

When the wireless microphone remote controller which has transmitted the switched-on wireless signal is detected in step S230, the microphone driving stop signal may be transmitted to the wireless microphone remote controllers 11 allocated to other channels except for the wireless microphone remote controller 11. do. This is transmitted through the assigned radio channel.

Then, the microphone driving is performed only for the remote controller microphone 11 which has switched on the operation key, and the microphone driving of the wireless microphone remote controllers 11 of the other conference participants is stopped.

Its operation is made, and if there is a power-off operation in step S240, the operation ends.

8 is a control flowchart illustrating a method of operating the wireless microphone remote controller 11 according to an exemplary embodiment of the present invention.

Referring to FIG. 8, it is detected in step S300 whether there is a switch-on of an operation key.

When switching on is detected in step S300, this is a case in which the person who receives the corresponding wireless microphone remote controller speaks only after attending the meeting.

Then, light emission of the infrared device provided in step S310 is performed.

In operation S320, the switched-on state is wirelessly transmitted, which is performed by transmitting a predetermined signal through a wireless channel allocated to the corresponding wireless microphone remote controller.

In step S330, the voice transmission path is formed. This is done through the control of the videoconferencing radio controller 13. The voice spoken by the speaker is then transmitted to the videoconferencing radio controller 13 as wireless.

In step S340, it is detected whether there is a reception of the microphone driving stop radio signal. If it is detected in the step S340 that there is a reception of a radio signal, since this is a matter that requires the operation of another wireless microphone remote controller, the process of releasing the voice transmission path is performed in step S350. That is, the microphone driving is stopped.

In step S360, whether or not the power is off is detected, and the end of the operation is performed according to the result.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

Through the implementation of the present invention as described above, there is an advantage that can solve the problems caused in the prior art.

In addition, through the implementation of the present invention, the speaker tracking function and the voice transmission function of the tracked speaker are performed, so that only video and audio of the speaker who actually speaks during the video conference can be delivered to the conference counterpart. There is an advantage to this.

In addition, there is an advantage that a video conferencing system that can be applied to small businesses, such as a relatively low cost of the video conferencing system construction is consumed.

Claims (33)

In a video conference system, It is provided according to the number of at least one meeting participant and is paid to each meeting participant at the time of performing the meeting, and the infrared light emitting and pre-allocated when there is a predetermined switching operation from the speaker who is requested to speak in the meeting participant. A wireless microphone remote controller for converting a voice input through the microphone into a wireless signal after determining whether to drive the microphone based on a wireless signal transmission to the wireless transmission channel and the wireless signal transmission result; Transmitting the captured image data to the video conferencing wireless control device, and determining the rotation direction of the image camera based on the reception of the infrared light emitted from the wireless microphone remote controller and the result of the reception of the infrared light, and then controlling the rotation in the determined direction. Camera controls, Receives the captured image transmitted from the camera control device and the wireless signal transmitted from the wireless microphone remote control and converts the data and transmits it to the external network, and transmits to one channel in at least one or more pre-assigned wireless channels. And a video conferencing wireless control device for transmitting a wireless signal according to a microphone driving stop to other channels other than the received wireless channel when the wireless signal of a predetermined type is received. The method of claim 1, wherein the wireless microphone remote control, A video conferencing system, further comprising a display unit for displaying an infrared light emitting state as a visible state in infrared light emitting. The method of claim 2, wherein the display unit, A video conferencing system, characterized in that it is implemented by LEDs emitting light during an infrared light emitting time. The method of claim 1, wherein the wireless microphone remote control, Different wireless channels are assigned to each other, and when there is a switching operation, a wireless signal of a predetermined type is transmitted through the wireless channel assigned to the user, and the voice input through the microphone is modulated and transmitted as a wireless signal. Conference system. The method of claim 1, wherein the wireless microphone remote control, And a built-in microphone driving stop signal when a predetermined type of microphone driving stop signal is received in response to the transmission of the radio signal according to the switching operation. The method of claim 1, wherein the camera control device, At least one infrared light receiving element is provided to distinguish each installation position, and when there is infrared light reception, characterized in that for determining the installation position of the received light receiving element to control the rotation direction of the image camera to the determined position Video conferencing system. The method of claim 6, wherein the installation position of the infrared light receiving element, A video conferencing system, characterized in that each of the light receiving elements is installed at one location outside the camera control device in a circular form at regular intervals. The method of claim 6, After infrared light receiving by the light receiving element, when infrared light receiving by another light receiving element is generated, it is characterized by determining the installation position of the other light receiving element to change the rotation direction of the image camera to the determined position control Conference system. The apparatus of claim 1, wherein the video conferencing wireless control device comprises: And a video signal transmitted from the camera image control apparatus and a voice transmitted as a wireless signal from the wireless microphone remote controller, mixed, compressed, and transmitted in real time through an external network. The apparatus of claim 1, wherein the video conferencing wireless control device comprises: A wireless channel corresponding to each of the wireless microphone remote controllers is allocated, and when a predetermined wireless signal reception is detected in any one channel of the allocated wireless channels, the wireless signal is predefined in a channel other than the detected channel. And generate and transmit a microphone driven stop signal for the video conference system. A wireless microphone remote controller having infrared light emission and wireless signal transmission / reception function, which is provided according to the number of at least one meeting participant, and is provided to each meeting participant when the meeting is performed; A camera controller for controlling the transmission of the captured image and the rotation of the provided image camera, A control method of a video conferencing system, comprising: a transmission process of an image transmitted from the camera controller and an audio transmitted from the wireless microphone remote controller to an external network, and a wireless controller that allocates a wireless transmission / reception channel corresponding to the number of wireless microphones. To In the wireless microphone remote control, when there is a predetermined switching operation from the speaker who is requested to speak, the wireless microphone remote control transmits a radio signal of the infrared light emission and a radio channel to a pre-allocated radio channel, and responds to the transmission of the radio signal. A first process of converting an input voice into an electrical signal and transmitting the received voice when the reception of a predetermined type of wireless signal due to a separate microphone driving stop is not detected; In the camera control device, if the received light of the emitted infrared light is detected, a second process of determining the photographing direction of the image camera as a result of the received light, and transmitting the image taken by rotating in the determined direction; In the wireless control apparatus, when a wireless signal reception is detected in a specific wireless channel in at least one or more pre-assigned wireless channels, the wireless signal is transmitted to other wireless channels other than the wireless channel according to the stop of driving the microphone, And a third process of converting an image transmitted from the camera controller and an audio transmitted from the wireless microphone remote controller into a predetermined conversion process and transmitting the converted image to an external network. The method of claim 11, wherein the first process, In response to the transmission of the wireless signal, if the reception of a predetermined type of wireless signal according to the separate driving of the microphone is detected, further comprising the step of stopping the driving of the provided microphone, characterized in that the video conferencing system Control method. The method of claim 11, wherein the determining of the shooting direction of the image camera in the second process, And after reading the installation position of the light receiving element for receiving the emitted infrared light, determining the photographing direction of the video camera based on the read result. The method of claim 13, When the emitted infrared light is received by the light receiving element at another installation position, after reading the installation position of the light receiving element received by the infrared ray, the photographing direction of the image camera is shifted through the read result. How to control your video conferencing system. The method of claim 11, wherein the third process, Receiving a voice signal through a wireless channel in which the wireless signal reception is detected, and performing a predetermined conversion process; And generating a microphone driving stop signal of a predetermined type and transmitting the signal to a predetermined wireless channel in addition to the wireless channel. In the camera control apparatus of a videoconferencing system for processing a participant's shooting and the captured image, An infrared light receiving unit which has at least one light receiving element installed in different directions, and detects the received position and outputs the result when the infrared light emitted from the wireless microphone remote controller is received; A control unit which determines a rotation position of the image camera as the output detection result and controls the rotational drive of the mall image camera to the determined position; And a video camera rotation driver for driving the rotation of the video camera under the control of the controller. The method of claim 16, wherein the installation position of the light receiving element, Camera control apparatus of a videoconferencing system, characterized in that each of the light receiving elements is a circular shape so as to have a different light receiving direction at a predetermined interval and the outside of the camera control device. The method of claim 16, And a video transmission unit configured to transmit a predetermined data by converting the image photographed by the video camera. The method of claim 16, wherein the control unit, When the infrared rays emitted from the wireless microphone remote controller are received by the light receiving element having another installation position and the detection result of the received position is output, the rotation position of the image camera is determined according to the output detection result, and the change is determined. A camera control apparatus for a videoconferencing system, characterized by continuously controlling rotational drive of a commercial video camera to a position. In the camera control method of a videoconferencing system for transmitting a process of photographing the captured participant and the captured image, An infrared light receiving process of detecting at least one received position and outputting a result when infrared light emitted from a wireless microphone remote controller is received in at least one light receiving device installed in different directions; A camera rotation control process of determining a rotation position of the image camera as the output detection result, and controlling rotation driving of the mall image camera to the determined position; And a video camera rotation driving process for driving the rotation of the video camera through the rotation driving control result of the camera. The method of claim 20, wherein the installation position of the light receiving element, The method of controlling a camera of a videoconferencing system, characterized in that each of the light receiving elements has a circular shape so as to have a different light receiving direction at a predetermined interval. The method of claim 20, And a video transmission process for converting and transmitting an image captured by the video camera by a predetermined data conversion process. The method of claim 20, wherein the control process, When the infrared rays emitted from the wireless microphone remote controller are received by the light receiving element having another installation position and the detection result of the received position is output, the rotation position of the image camera is determined according to the output detection result, and the change is determined. And controlling the rotational drive of the mall video camera to a position continuously. In the wireless microphone remote control of the videoconferencing system for controlling the shooting direction of the image camera and wireless transmission of the input voice, An infrared light emitting unit for emitting infrared light in accordance with the switching operation state of the speaker; A wireless signal transmitter for transmitting a predetermined radio signal to a radio channel pre-allocated according to the switching operation state, transmitting a voice converted into an electrical signal as a radio signal, and receiving a radio signal according to a stop of driving a microphone of a predetermined type. Wow, A control unit for controlling the driving of the microphone when the wireless signal reception due to the stop of driving the microphone of a predetermined form is not detected within a predetermined time in response to the transmission of the wireless signal; Under the control of the controller, a wireless microphone remote control of a video conferencing system, characterized in that the microphone for converting the voice input through the microphone into an electrical signal and output to the wireless signal transmitter. The method of claim 24, And a display unit for displaying the light emitting state of the infrared light in accordance with the switching operation state of the speaker as the visible state. The method of claim 24, wherein the control unit, The wireless microphone remote control of the video conferencing system, characterized in that for stopping the operation of the microphone unit when the reception of the wireless signal according to the predetermined stop driving the microphone in response to the transmission of the radio signal. In the wireless microphone remote control control method of a videoconferencing system for controlling the shooting direction of the image camera and wireless transmission of the input voice, An infrared light emitting process for emitting infrared light in accordance with the switching operation state of the speaker; A radio signal transmission process of transmitting a radio signal predetermined through a radio channel previously allocated according to the switching operation state; A radio signal reception process of receiving a radio signal according to a stop of driving a microphone of a predetermined type in response to the radio signal transmission; A microphone driving control process of controlling driving of a microphone when the wireless signal reception is not detected within a predetermined time; As a driving control of the microphone, a wireless microphone of a video conferencing system comprising a voice transmission process of converting and outputting a voice input through the microphone into an electrical signal and transmitting the voice converted into the electrical signal as a wireless signal. remote control. The method of claim 27, And a display process for displaying the light emitting state of the infrared rays in accordance with the switching operation state of the speaker as a visible state. The method of claim 27, wherein the microphone driving control process, If the wireless signal reception is detected within a predetermined time, the wireless microphone remote control of the video conferencing system, characterized in that further comprising the step of controlling the driving stop of the microphone. In the wireless control device of a video conferencing system for converting the video taken from the video camera and the voice transmitted from the at least one wireless microphone remote control to the outside network by converting and mixing A network transmitter for converting and mixing an image transmitted from the image camera and an audio transmitted from the wireless microphones and then transmitting the converted image to an external network; Each of the wireless microphone remote controllers allocates different wireless channels, detects and outputs a predetermined type of wireless signal transmitted as a result of the switching operation of the wireless microphone remote controller, and transmits it as a wireless signal from the wireless microphone remote controller. A wireless signal receiver for receiving a voice signal, A control unit for controlling a wireless signal transmission for requesting to stop driving a microphone to another wireless channel allocated in addition to the wireless channel where the wireless signal is detected when wireless signal reception is detected; And a radio signal transmitter for transmitting a radio signal of a predetermined type to the other radio channel under the control of the controller. 31. The method of claim 30, wherein the network transmission unit, And transmitting the converted and mixed video and audio in the form of cable broadcasting network (CATV), ISDN, ADSL, PSTN, ATM, wireless network, and LAN. In the control method of the video conferencing system wireless control device for converting the video taken from the video camera and the voice transmitted from the at least one wireless microphone remote control to the external network by converting and mixing A wireless signal detection output process of allocating different wireless channels to each of the wireless microphone remote controllers and detecting and outputting a predetermined type of wireless signal transmitted as a result of the switching operation of the wireless microphone remote controller; A radio signal transmission process of transmitting a radio signal for requesting to stop the driving of a microphone to another radio channel allocated to the radio channel in which the radio signal is detected, when the radio signal reception is detected; Control of the video conferencing system wireless control device comprising a network transmission process of converting and mixing the image transmitted from the video camera and the audio signal transmitted as a wireless signal from the wireless microphone remote controllers and then transmitting to the external network Way. 33. The method of claim 32, If the wireless signal is received and detected as another wireless channel, the wireless signal is further provided with a process of retransmitting the wireless signal for the microphone driving stop request to another allocated wireless channel in addition to the other detected wireless channel. A control method of a video conferencing system radio control apparatus, characterized in that.