JPH05298340A - Consultation and conference system - Google Patents

Abstract

PURPOSE:To automatically and compactly store the contents of a consultation/ conference by collecting respective information inputted through touch sensor means at the same time and storing the collected data as raw data for a record. CONSTITUTION:The touch sensor means 6 is used as a trigger for specifying the contents to be recorded for a consultation conference and voice or graphic information on the means 6 is inputted while touching an image displayed on a display means 5 with a finger through the means 6. Thereby the voice and the graphic information are collected as data at the same time together with user's expression at the input. In the whole local area network(LAN), information inputted from other terminals 51, 52 at the same time is also collected and voice, expression and graphic information at the same time are recorded as raw data for a record.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a consultation / conference system between remote places using communication means, and particularly to a consultation / conference system capable of recording only essential points of the consultation / conference. Concerning the conference system.

[0002]

2. Description of the Related Art Conventionally, in a medical field, a department that directly diagnoses a patient (internal medicine, surgery, etc.) has requested other departments (radiology, etc.) to provide the medical information of the patient, and provides this medical information. In the required department, for example, an X-ray image or other medical image and its interpretation report, and the result of chemical analysis of the specimen are sent to the requesting department.

Then, in the department for diagnosing a patient, one or a plurality of persons in charge diagnose the patient and determine a treatment policy based on the provided medical information. When a plurality of people gather to study a patient's medical condition and treatment method, a so-called conference method is used.

By the way, in practice, the side to which the medical information is provided may have an unknown point in the medical information. In such a case, consult the side who provides the medical information for consultation. There is. In addition, there may be cases where the participation of a person from the department who provided medical information for consultation purposes at the above-mentioned meeting place.

[0005]

However, the room for collecting and providing medical information about a patient and the department for actually diagnosing a patient in response to the medical information are provided in different rooms. , In a remote location that cannot appeal to the voice or direct sight. So, until now, we have been going to rooms of different departments, or people of different departments have gathered in a conference room different from the room of each department to hold a consultation or conference, and we can not hold a consultation or conference in the place where we usually are There was an inconvenience. Further, in this case, it is difficult to accurately record the contents of the consultation or the conference, and it may not be possible to make use of past experience when contacting similar medical information.

[0006] Therefore, first, in order to hold a consultation or a conference in the place where they are usually present, a video conference system using communication means such as a television camera and a television, a microphone and a speaker, and the like can be considered.

However, in the conventional video conference system,
If the content of the consultation / conference is automatically recorded (recorded / recorded), all the speech contents of the attendees or all the visual information presented will be recorded from the beginning to the end of the conference, so the amount of information will be large. It was enormous, and there was the drawback that it took a lot of time and effort to search for records.

The present invention has been made in view of the above circumstances, and provides a consultation conference system capable of compressing and retrieving recorded information by limiting the recorded contents to the essential points while using the video conference system. The purpose is to do.

[0009]

In order to solve the above-mentioned problems, the present invention provides a consultation conference system in which terminals having users as participants in a consultation conference are connected by a local area network (LAN). , Each terminal has a display means for displaying an image in which the user should state his / her opinion, a microphone means for each user to input his / her opinion by voice, a speaker means for outputting the other user's opinion by voice, and a voice / voice opinion input. The touch sensor means is a means for inputting opinions by a trigger and graphics, and is placed over the display means, a camera means for photographing the facial expression of the user who inputs an opinion, and recording / editing of the contents of the consultation conference. Keyboard means for entering various commands, And a means for generating time-series information that summarizes the input user's voice, facial expression, and input graphics information for each image in each terminal over time, and sends it to the LAN. Then, the LAN is connected to means for collecting time series information sent from each terminal at the same time for each image, creating and storing the minutes record information or tape, and sending it out in response to a request from each terminal. Providing a consultation conference system

[0010]

In the consultation conference system of the present invention, the touch sensor means is
It becomes a trigger to instruct what should be recorded in the conference, and while touching the image displayed on the display means below it via the touch sensor means, inputting voice or graphics information on the touch sensor means, these The voice and graphics information is collected as data at the same time together with the facial expression of the user at the time of input. In the entire LAN, information from other terminals at the same time is collected, and voice, facial expression, and graphics information at the same time are recorded as minutes record raw data.

[0011]

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

FIG. 1 is a block diagram showing the functional arrangement of a consultation conference system according to the first embodiment of the present invention.

That is, the terminal A for data input (creation)
The image data management unit 10 (indicated by reference numeral 50) displays on the display 5 via the image display unit 4 an image for which the doctor should state his opinion at a consultation or conference. In the present embodiment, the doctor inputs his / her opinion by his / her voice and the action of touching the image by himself / herself while looking at the image. In other words, this input operation includes two inputs (voice and image [or graphics]) in which an opinion (text data) relating to the touched image is input by voice and a drawing is drawn as touched on the image.

Here, the input terminal A uses the microphone 1 for voice,
Further, the touch sensor 6 receives a touch on the image on the display 5 and performs the following processing.

First, as for voice, an analog signal is sent from the microphone 1 to the voice digitizer 2, and the voice digitizer 2 performs A / D.
(Analog / digital) conversion into digital data is sent to the time-sound data creation unit 3. The time-sound data creation unit 3 stores the sound data sent from the sound digitizer 2 in association with the time data sent from the clock 13. Specifically, the data of each of the audio digitizer 2 and the clock 13 is stored in the buffer memory in the time-audio data creation unit 3, and then the audio data and the time data are synchronized with the clock signal to generate the time shown in Table 1 below. -Enter one after another in the voice table.

[0016]

[Table 1]

On the other hand, the data of the facial expression of the doctor is obtained by the camera 31
Is photographed by and input to the image digitizer 32.
The image digitizer 32 digitizes the input image and transmits it to the time-of-day-facial expression creation unit 33. Using the clock 13, the time / facial expression creating unit 33 creates a time / facial expression table shown in Table 2 below in which the image data sent from the image digitizer 32 and the time are associated with each other, as in the case of voice.

[0018]

[Table 2]

Next, regarding the pointer data (coordinates on the image touched by the doctor), the pointer data sent from the touch sensor 6 is converted into digital coordinate data by the pointer data input unit 8. The touch sensor technology currently known can be used for this.

When the coordinate data is received from the pointer data input unit 8, the time-pointer data creation unit 9 uses the clock 1
The time data is received from 3 and input to the time-pointer table shown in Table 3 below one after another in synchronization with the clock 13 as in the case of voice / expression.

[0021]

[Table 3]

When the doctor finishes inputting his / her opinion at the consultation or conference, the doctor inputs a termination request command from the keyboard 27.
Then, this end request command is sent to the image data management unit 10
The image data management unit 10 sends the identification number (image ID) of the image currently displayed on the display 5 and the input of the doctor's findings to the expression-time-voice-pointer data-image ID creation unit. Send to 14. The end request command is also transmitted to the time-speech data creation unit 3, the time-facial expression data creation unit 3, and the time-pointer data creation unit 9, and these data creation units 3, 33, 9 are sent.
Transmits the created time-voice table, time-expression table and time-coordinate table to time-voice-expression-pointer data-image ID creation unit 14.

The time, voice, facial expression, pointer data, and image ID creating section 14 that receives these three tables sequentially connect them to form one unified data. This has a format in advance like a structure in the C language which is a programming language, and sequentially forms data according to this format. This unified data is the minutes raw data creation unit 37. Sent to.

Various data input from one terminal are transmitted / output by the data transfer unit 34 to some or all other terminals having the same configuration. For example, the image data input from the image digitizer 32 of the terminal A is transmitted to the terminal B (reference numeral 51 through the data transfer unit 34).
(Shown in FIG. 4) is sent to an image display unit (not shown) and displayed on the display. The voice input at the terminal A also passes through the data transfer unit 34 from the voice digitizer 2 and is D / D by the voice analyzer of the terminal B (reference numeral 36 at the terminal A).
The signal is A (digital / analog) converted and output from the speaker (reference numeral 35 in the terminal A). Similarly, the pointer data is also displayed on the display of the pointer data input unit 8 of the terminal A → the data transfer unit 34 → the overlay pointer data display unit of the terminal B (reference numeral 7 in the terminal A). In this way, the input data of one terminal can be shared by other terminals.

Further, time data may be transferred from the clock 13 of the terminal A to the clocks of other terminals via the data transfer unit 34 so that the clocks of the respective terminals indicate the same time.

Now, one or a plurality of terminals 50, 5
The unified data sent from the minutes raw data creation unit 37 from 1, 52, ... Associates the same data at the same time in the minutes raw data creation unit 37, and the minutes raw data of the data format shown in Table 4 below. Is processed into.

[0027]

[Table 4]

That is, first, when the unified data on the time of the terminal A-voice-facial expression-pointer data-specific image created by the image ID creation unit 14 is received, the time data of that is converted into the time data of the above format. Store in the memory corresponding to the part. Then, the voice data, the facial expression data, and the pointer data corresponding to the time are stored for each image ID in the corresponding memory of the format. Thus, if there are n image IDs,
The minutes raw data for the n minutes are created.

Similarly, the time of other terminals B, C ...
With respect to the unified data sent from the voice-facial expression-pointer data-image ID creation unit 14, the above processing is performed for the same image ID.

According to this embodiment, the contents of the conference consultation conducted between the users of the terminals can be stored in the minutes record data memory 38 in the format shown in Table 4 above.

The raw minutes data is also recorded in the minutes editing unit 39.
The image database 40 can be edited with the edited contents.

The image database 40 stores image information and overlay (overlay) information on the image. When each terminal uses this information, the terminal A is used as an example. The image information is temporarily stored in the image memory 20, and the overlay information is stored in the overlay memory 21. Then, under the control of the image data management unit 10, the image information is displayed on the display 5 via the image display unit 4, and the overlay information is displayed on the display 5 via the overlay pointer data display unit 22.

Next, a mode of reproduction / editing will be described with reference to FIG. 2 showing an example of mounting a terminal. In FIG. 2, FIG.
The same reference numerals are used for the elements having the same names as those in the functional configuration diagram. Other mounting elements will be described while showing the correspondence with the functional elements in FIG.

In summary, the minutes raw data memory 3
When the input of the raw minutes data stored in 8 is requested from the keyboard 27 at the terminal A, for example, the image data in the raw data is sent to the LAN (local area network) 41 and the network I by the instruction of the CPU 43. /
It is transferred to the display controller 44 (corresponding to the image display unit 4 and the overlay pointer data display unit 22 in FIG. 1) via the F (network interface) 42 and displayed on the display 5. Also,
At the same time, the voice data in the proceedings raw data is also transferred to the voice input / output controller 45 (corresponding to the voice digitizer 2 and the voice analyzer 36 in FIG. 1) and the speaker 35.
The sound is output from.

The constituent elements in FIG. 1 put together in the CPU 43 are activated as tasks (processes), and data exchange between the tasks is performed by inter-task (process) communication.

This will be described in more detail. When a reproduction request for the minutes data is input from the keyboard 27 with a predetermined input code, the general controller 46 causes the CPU 43 to
Interrupts. At this point, the CPU 43 reads the register contents of the general controller 46, compares it with the command list shown in Table 5 below, and determines that the request is for reproduction.

[0037]

[Table 5]

Then, the CPU 43 transfers, to the display controller 44 and the voice input / output controller 45, the minutes record data stored in the image memory 20 and the overlay memory 21 through the LAN 41 in advance. At this time, the display controller 44 transmits a time-facial expression-pointer data table, which is a collection of time, facial expression, and pointer data in the minutes record raw data, and a time-speech table, to the voice input / output controller 45.

Next, the CPU 43 looks at the image ID of the raw minutes data, searches the image database 40 for the image data corresponding to the image ID, and stores it in the image memory 20. These image data are displayed on the display controller 4
4 is transmitted.

As shown in FIG. 3, the display controller 44 has a display memory 61, an overlay memory 62, a memory-ID correspondence table 63, a minutes data memory 64, a facial expression / image output image memory 65, as shown in FIG. Clock 66, touch panel data input unit 67
And a data transmission / reception unit 68.

Now, the CPU 43 simultaneously transmits a reproduction command to the display controller 44 and the audio input / output controller 45. The display controller 44 stores the image in the display memory 61 in advance and displays it on the display 5, but when receiving the reproduction command, the pointer data in the minutes record data is sequentially input to the overlay memory 62.

The method of this sequential input is as follows.
Is a display controller 4 requesting playback with the time at the beginning of the time data in the minutes data as a parameter.
Send to 4. Upon receiving this, the display controller 44 sets the initial value of the clock 66 at this time. Then, thereafter, it is compared whether or not the time data of the minutes raw data memory 64 in the display controller 44 and the time of the clock 66 set previously match.
If they match, the pointer data in the minutes data memory 64 is transmitted to the overlay memory 62 for reproduction. The reproduction of the audio data in the audio input / output controller 45 is performed by the same method.

Next, a method of editing (updating) the raw minutes data at each terminal will be described. User can use keyboard 2
The input from 7 notifies the CPU 43 of the edit request. Then, the CPU 43 sends an edit command to the display controller 44 and the voice input / output controller 45.

Each controller 44 which has received the edit command,
45 enters a state of waiting for input from the user. When the user inputs pointer data from the touch screen 6 controlled by the touch screen controller 47 of FIG. 2, the pointer data is sent to the proceedings data memory 64 through the touch screen data input unit 67. In accordance with this, the display controller 44 updates the pointer data in the minutes record raw data memory 64, transmits it to the display memory 61, and displays it on the display 5.

The editing of voice is performed in the same manner as above.

When the CPU 43 receives an edit end request from the keyboard 27, the CPU 43 sends an end command to the controllers 44 and 45, and further updates the pointer data and voice data to record the minutes in the controllers 44 and 45. It transmits from the data memory to the memory of the CPU 43, and updates the original minutes data recorded in the memory.

Now, referring to FIG. 4, a method of creating character / graphics information which is overlaid on an image (considered as editing) from the raw minutes data including voice in the minutes editor 39 of FIG. State. 1 to 3 in FIG.
The same reference numerals are given to the elements corresponding to.

When the minutes record raw data enters the minutes record editing section 39 from the minutes record raw data memory 38, it is sent to the character data creating section 16. Then, the voice recognition unit 1
5 is about the voice data part of the minutes record raw data,
The voice data is converted into a character code by a known voice recognition technique. This character code is used as a part of the character data created by the character data creating unit 16.

That is, the voice recognition unit 15 uses, as a word or sentence delimiter, for example, in a silent state,
The words or sentences up to that point are converted into a character code by separating them into one character, and in that case, the voice data V ₁ , ...
Time t ₁ corresponding to V _n, ..., and t _n, and association with each converted character code C, and character-based data creation unit 1
Send to 6.

[0050]

[Table 6] The format at this time is sent as a set of the first time t ₁ , the last time t _n, and the character code C of the recognized voice, as shown in Table 7 below.

[0051]

[Table 7] As can be seen from this table, the character code (null) is added at the beginning and end times of the part recognized as silence.
Correspond to.

Upon receiving the data of Table 7 from the voice recognition unit 15, the character data creation unit 16 receives the image ID and time-pointer data in the minutes record data and the time (first and last) -Character code data of Table 7. Character data in a predetermined format is created from the character overlay data creation unit 18
Send to.

Next, whether the pointer information (time-pointer data) in the minutes raw data is graphics data (image data drawn by tracing the screen with a finger) or voice input data (a point on the screen is Described below is a method for discriminating whether or not it is voice data input by pointing and speaking.

The pointer information discriminating unit 17 which has received the raw minutes data advances the processing by paying attention to the time-pointer data in the data format.

First, a predetermined time Δ from time t _1.
The distance moved by the pointer (coordinates) data during t (held in advance) is calculated. The distance d between the coordinates (X ₁ , Y ₁ ) and (X ₂ , Y ₂ ) is

[Equation 1] It is represented by.

When there are n pieces of coordinate data between Δt,
The distance d from the coordinate (X ₁ , Y ₁ ) of t ₁ is calculated for all n coordinate data (this is d ₁ ,
,, d _n ).

_If at least one of these d ₁ , ..., D _n exceeds the predetermined value ε (previously held), this (X ₁ , Y ₁ ) to (X _n , It is determined that the coordinate data of Y _n ) is graphics data input by handwriting by a doctor, and a set of coordinates (X ₁ , Y ₁ ) to (X _n , Y _n ) is formed in the format shown in Table 8 below. To store.

[0058]

[Table 8] Note that this set of coordinate data is written as (X ₁ , Y ₁ ), ..., (X _n , Y _n ) as graphics data for convenience.

On the other hand, _if at least one of d ₁ , ..., D _n does not exceed ε, these are determined by the doctor at this coordinate [(X
It is determined that a character is input by voice while touching ( ₁ , Y ₁ ) to (X _n , Y _n ) are almost the same), and d
(X ₁ , Y ₁ ) corresponding to ₁ , ..., D _n and t ₁ , ..., T
Store _n in the data format shown in Table 9 below.

[0060]

[Table 9]

For convenience, this format is also written as shown in Table 10 below.

[0062]

[Table 10] Now, in this way, the coordinate data (X ₁ , Y ₁ ) to (X
_When the analysis up to _n , Y _n ) is completed, the next (X _{n + 1} ,
The same processing is repeated for the coordinate data after Y _{n + 1} ). In this way, processing is performed up to the last coordinate data, and all graphics data and pointer data (hereinafter referred to as "graphics-
Stored as "pointer data"). In this table, the graphics data is stored in the format described above, and the pointer data is stored in the format shown in Table 10.

[0063]

[Table 11] This graphics-pointer data is transmitted to the character overlay data creation unit 18.

The character overlay data creation unit 18, which has received the character data and the graphics-pointer data from the character data creation unit 16 and the pointer information discrimination unit 17, respectively, creates the character overlay data based on these.

By the way, in this embodiment, the touch sensor 6
As shown in FIG. 5, the coordinates of the coordinates are from (0, 0) to the maximum (X
_max , Y _max ), and the data relating to the coordinate size is also held in the character overlay data creation unit 18.

Now, the character overlay data creating section 18
Is a command for requesting the past character overlay data already stored for the image to the image data management unit 10 of the terminal A using the image ID of the character data or the graphics-pointer data as a parameter. Send out.

On the other hand, it is assumed that the image data management unit 10 holds a correspondence table of image IDs and character overlay data. When this command is received, the correspondence table is referred to,
The overlay memory 21 is caused to send the character overlay data to the character overlay data creation unit 18.

That is, the image data management unit 10 previously sets the spatial resolution (X ′, Y ′) [pixel size is (X ′) as shown in FIG. 6 for the character overlay data of each image.
_max , _Y'max )] and 1-bit density resolution (0 or 1; 0 when displaying, 1 when not displaying) in the overlay memory 21. Then, from the correspondence table of the character overlay data and the image ID in this format, the character overlay data and the pixel size thereof are transferred from the overlay memory 19 in response to a request from the character overlay data creating unit 18.

Upon receipt of the character overlay data and the pixel size thereof, the character overlay data creating section 18 next focuses on the pointer data of the graphics-pointer data. In the above example, between times t _{n + 1 and} t _m ,
It was determined that there was a touch on the coordinates (X _{n + 1} , Y _{n + 1} ) and that voice was being input during that time.

Therefore, the times t _{n + 1 to} t _{m of the} character data are
The character code C corresponding to is searched. As a result, for example when I character code is input as "pneumonia", based on the coordinate relational format of the touch sensor and character overlay data shown in FIG. 7, the coordinates in the format of the character overlay data (X n _{+ 1} · X ′ _Max / X _max , Y _{n + 1}
・ Create and enter graphics data of a character "pneumonia" (where a character is 1) in the vicinity of _Y'max / _Ymax ), for example, in the range of the number of pixels ε '(predetermined). To do.

This operation is performed for all pointer data in the graphics-pointer data. And
The new overlay data containing the characters thus created is sent to the overlay memory 19 and stored in place of the old one.

Next, a method of creating graphics overlay data will be described.

Upon receiving the graphics-pointer data, the graphics overlay data creating section 25 looks at the graphics data portion in the graphics-pointer data and creates the graphics overlay data.

First, using the image ID in the graphics-pointer data as a parameter, a command for requesting graphics overlay data of the image is sent to the image data management unit 10. In the image data management unit 10,
When receiving the command and the parameter, the overlay memory 19 sends the corresponding past graphics overlay data and the pixel size to the graphics overlay data creating unit 25.

The graphics overlay data creating section 25 uses the received graphics overlay data and pixel size as (X ' _max , _Y'max ) and Z.
The density resolution represented by (1 bit) is temporarily stored.

Next, the overlay data is created based on the coordinates (X ₁ , Y ₁ ) of the graphics data in the graphics-pointer data, which is the coordinates (X ₁ · X ′ _max ) of the overlay data. / X _max , Y ₁ · Y ′
_{This is} performed by changing the data of ( _max / _Ymax ) from 0 to 1. This conversion of coordinate data is performed for all graphics data in the Clafix-pointer data.

The overlay data thus formed is sent to the overlay memory 21 and stored therein.

In the overlay memory 10, the overlay data corresponding to one image ID is preferably divided into a character overlay and a graphics overlay. However, in this case, the image data management unit 10 does not erase the other by updating the character overlay data creation unit 18 and the graphics overlay data creation unit 25 at the same time.
Exclusive control by is required.

In this embodiment, they are divided.

When displaying the image + overlay, both the character overlay and the graphics overlay created by the character overlay data creation unit 18 and the graphics overlay data creation unit 25 are associated with the image ID by the image data management unit 10. It is stored in the overlay memory 21.

When a request to refer to an image and an overlay and an image ID are input from the keyboard 27,
The image data management unit 10 adds the character overlay and the graphics overlay for each same coordinate, creates one overlay data, and sends it to the overlay / pointer data display unit 22. Further, the image corresponding to the image ID is read from the image memory 20 and sent to the overlay pointer data display unit 22.

As a result, the image and the overlay are displayed on the display 5 in an overlapping manner. That is, according to the operations performed so far, the voice and the data input by pointing with the touch sensor 6 are referred to as an overlay.

According to this embodiment, the image + overlay can be edited. That is, overlay memory 2
The overlay data stored in 1 can be edited, looking at the overlay displayed on the display 5,
The user inputs pointer data from the touch sensor 6. The input data is processed as overlay graphics, for example.

That is, all the input coordinate data are judged to be graphics input, and the data in the overlay memory 21 is updated. In addition, overlay the input data
It is transmitted to the pointer data display unit 22 and displayed on the display 5. This allows editing.

[0085]

As described above, according to the consultation conference system of the present invention, the LAN
Within the area of, the voice, facial expression, and graphics information input from all terminals via touch sensor means are collected at the same time and recorded as minutes record data, so the contents of the consultation conference are It is recorded automatically and without any manual effort, and only at the essential points.

[Brief description of drawings]

FIG. 1 shows a consultation according to an embodiment of the present invention.
Functional configuration diagram of the conference system.

FIG. 2 is an implementation configuration diagram of the consultation conference system in FIG.

FIG. 3 is a configuration diagram of a display controller in FIG.

FIG. 4 is a block diagram of the minutes editor of FIG. 1.

FIG. 5 is a diagram showing coordinates of a touch sensor in FIG.

FIG. 6 is a diagram showing a format of character overlay data of each image.

FIG. 7 is a diagram showing a coordinate relationship between formats of a touch sensor and character overlay data.

[Explanation of symbols]

1 Microphone 4 Image Display 5 Display 6 Touch Sensor 10 Image Data Management 13 Clock 14 Time-Voice-Facial Expression-Pointer Data-Image ID Data Creation 20 Image Memory 21 Overlay Memory 27 Keyboard 37 Minutes Raw Data Creation 38 38 Agenda Recorded data memory 39 Minutes editorial department 40 Image database 50 Terminal A

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Takehiro Ema 1385-1 Shimoishigami, Otawara, Tochigi Prefecture Toshiba Medical Engineering Co., Ltd.

Claims (1)

[Claims] 1. A consultation conference system in which terminals using a participant of a consultation conference as a user are connected by a local area network (LAN), and each terminal displays an image to which the user should give his / her opinion. Means, a microphone means for each user to input an opinion by voice, a speaker means for outputting an opinion of another user by voice, a means for triggering an opinion input by voice and an opinion input by graphics, and the display means The touch sensor means that are installed in layers, the camera means that captures the facial expression of the user who inputs an opinion, the keyboard means that inputs various commands related to the recording / editing of the contents of the consultation / conference, and the input time of the opinion. Clock means to inform and each terminal For each image, there is a means for creating time-series information that summarizes the input user's voice, facial expression, and input graphics information over time, and sending it out to the LAN. Consultation that connects the means that collects the time series information for each image at the same time and creates and stores the minutes record information or data, and sends it out in response to the request from each terminal.
Conference system.