KR100848013B1 - Conference call system and method using a broadcast receiving terminal - Google Patents

Abstract

The present invention is to receive information about a call receiver to participate in a conference call from a user, to establish a call with the call receiver and the user terminal corresponding to the user, and to set the channel corresponding to the call to the conference call. The present invention provides a conference call system and method for making a conference call by synthesizing and transmitting voice data received through a channel assigned to the room to the call receiver and the user.

Conference call, conference call, conference call, digital TV, set-top box

Description

Conference system and method using broadcast receiving terminal {SYSTEM AND METHOD FOR CONFERENCE CALL USING BROADCAST RECEIVING TERMINAL}

1 is a diagram illustrating a conference call by using a conference call method according to the related art.

2 is a diagram illustrating a network configuration of a conference call system according to an embodiment of the present invention.

3 is a diagram illustrating an internal configuration of a conference call system according to an embodiment of the present invention.

4 is a diagram illustrating an internal configuration of a conference call system according to another embodiment of the present invention.

5 is a diagram illustrating data stored in a phone number storage unit according to an embodiment of the present invention.

FIG. 6 is a diagram illustrating a UI displayed on a TV screen when a conference call is performed using a conference call system according to an exemplary embodiment of the present invention.

7 is a flowchart illustrating a flow of a conference call method according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

301: conference call system

302: broadcast receiving terminal

310: communication network

310: call setup request unit

320: channel input unit

330: channel allocation unit

340: voice data synthesis unit

350: channel output

360: phone number storage

370: phone number search unit

The present invention is to receive information about a call receiver to participate in a conference call from a user, to establish a call with the call receiver and the user terminal corresponding to the user, and to set the channel corresponding to the call to the conference call. The present invention relates to a conference call system and method for synthesizing voice data received through a channel assigned to the room and transmitting the synthesized voice data to the call receiver and the user.

Recently, with the development of communication networks, it has become common to communicate with people in remote locations through communication networks. In particular, the proliferation of mobile phones allows the other party to talk directly wherever and whenever, so that meetings and information exchanges are made through the telephone. Accordingly, various services using a telephone are provided. Among them, a conference call has been widely used recently.

The conference call is not a conventional 1: 1 phone call but a method in which several people can talk at the same time. Up to now, a conference call has been mainly used for a conference in which several people must participate in an enterprise. However, in recent years, the use of the conference call service is increasing as more users want to talk to each other using conference calls among non-corporate users.

1 is a diagram illustrating a conference call by using a conference call method according to the related art.

As shown in the drawing, according to the related art, in order to preside over a conference call, a user inputs telephone numbers of call recipients to participate in a conference call, one by one, by using the user's telephone terminal 101, Each had to set up an arc. The terminal of the call receiver may be a telephone terminal 103, a mobile telephone terminal 104, or an internet terminal 105 connected to a VoIP, and each terminal is a user's telephone terminal 101 through a communication network connected to each terminal. ).

For example, if the user wants to make a conference call with the users who use the telephone terminal 101, the telephone terminal 103, the portable telephone terminal 104, and the Internet terminal 105 to which the VoIP is connected, the user first. Presses a button of the telephone terminal 101 to input a telephone number of the telephone terminal 103 to establish a call with the telephone terminal 103. When the call is established, the user of the telephone terminal 103 waits until all the users are connected, and the user enters the telephone number of the mobile telephone terminal 104 into the telephone terminal 101 again and then the mobile telephone terminal 104. Set call with. If the call is also established with the mobile phone terminal 104, the user again attempts to establish a call with the Internet terminal 105 to which the VoIP is connected by using the phone terminal 101.

As such, in order to make a conference call with a plurality of counterparts, a user must attempt to set up a call for each of the plurality of counterparts by inputting telephone numbers of each of the plurality of counterparts. There was an inconvenience to wait with the handset until the end. In particular, if there is a counterpart who does not establish a call while attempting to set up a call with the other parties, the call setup must be repeated until the call is established, so all participants who will participate in the conference call have to wait.

In the case of presiding a conference call using the telephone terminal 101 according to the related art, since the telephone terminal 101 generally does not have a function of storing a telephone number, a UI for selecting a telephone number is not provided. There was no way to solve the inconvenience as described above. Therefore, by using the digital TV installed in the home of most users, a participant in the conference call can be easily selected, and a plurality of participants can participate in the conference call without inputting a separate phone number. There is a need for a conference call technology that enables information on a digital TV to be checked.

SUMMARY OF THE INVENTION The present invention has been made to improve the prior art as described above, and an object thereof is to enable a conference call with selected call recipients only by selecting a list of call recipients to participate in a conference call.

In addition, an object of the present invention is to provide a convenient UI to users by using a TV by receiving a call receiver to participate in a conference call through the broadcast receiving terminal.

In addition, an object of the present invention is to connect the conference call system to the broadcast system, so that the conference call can be made using the broadcast receiving terminal without installing a separate module in the broadcast receiving terminal.

In addition, an object of the present invention is to provide a phone book and a phone number search function, so that users can determine a call recipient who will participate in a conference call with a simple search without inputting a phone number.

In addition, an object of the present invention is to periodically request the call setup of the terminal of the disconnected call recipient, so that the connection can be attempted with the disconnected call recipient without inputting a separate phone number even during a conference call. It is done.

In addition, an object of the present invention is to provide a user with information about the connection state of the call receivers with the terminal through the broadcast receiving terminal, so that the user can conveniently check the connection state with the call receivers to participate in the conference call. It is done.

In addition, an object of the present invention is to connect a conference call system to a broadcast system to which a plurality of broadcast receiving terminals can be connected, so that a conference call can be made using a plurality of broadcast receiving terminals even by installing one conference call system. It is done.

In order to achieve the above object and to solve the problems of the prior art, a conference call system according to an embodiment of the present invention is a broadcast receiving terminal for receiving information about a call recipient to participate in a conference call, the call receiver and the Request a call setup using a telephone number of a user terminal corresponding to a user as a reception telephone number, set a channel corresponding to the set call with the user terminal, allocate the channel to a selected one of a plurality of rooms, and A conference call server for synthesizing voice data received through at least one channel allocated to the call receiver and the user terminal corresponding to the call receiver and the user, and receiving information about the call receiver from the broadcast receiving terminal; It includes a broadcast system for delivering to the call server.

In addition, the conference call system according to another embodiment of the present invention, a call setup request unit for transmitting a call setup request using a plurality of telephone numbers as a received telephone number, a call setup response signal from a user terminal for the call setup request; A channel input unit configured to receive a signal, determine a room to allocate the channel among a plurality of rooms, and allocate the channel to the room, and assign the room to the room. And a channel output unit for synthesizing the voice data received through the at least one channel. The channel output unit transmits the synthesized voice data to the user terminal.

In addition, the conference call system according to another embodiment of the present invention correspond to the phone number and the search information of the call recipient and the phone number storage unit for storing the user's phone number, the call recipient to participate in the conference call from the user A user interface unit for receiving information on the telephone number, a telephone number search unit for searching the telephone number of the call receiver from the telephone number storage unit, and referring to the information on the call receiver, to the searched telephone number and the telephone number of the user. And a network interface unit configured to transmit a call establishment request so as to perform a conference call between the communication terminal of the retrieved telephone number and the communication terminal of the user.

In addition, the conference call method according to an embodiment of the present invention comprises the steps of transmitting a call setup request using a plurality of phone numbers as a receiving telephone number, receiving a call setup response signal from the user terminal for the call setup request, Setting a channel corresponding to a set call with a user terminal, determining a room to allocate the channel among a plurality of rooms, allocating the channel to the room, received through at least one channel assigned to the room Synthesizing voice data and transmitting the synthesized voice data to the user terminal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited to the embodiments. Like reference numerals in the drawings denote like elements.

The term "broadcast reception terminal" used in the present invention refers to a terminal that receives broadcast data, and converts it into a form that can receive and display the TV or broadcast data to be displayed on the TV. A set top box may be included, and in addition to this, all terminal devices capable of receiving broadcast data, such as DMB terminals, may be included.

In addition, the term "room" used in the present invention refers to a virtual space for a conference call. In the present invention, one room is allocated to each conference call, and all user terminals connected to the room have the same voice data. Since it is received, the conference call participants have the same effect as having the conference call participants gathered in one room. Since the conference call system according to the present invention is connected to a broadcast system and can receive and process conference call requests from a plurality of broadcast receiving terminals, a plurality of conference calls can be simultaneously performed. Therefore, the term "room" is used to distinguish each conference call.

2 is a diagram illustrating a network configuration of a conference call system according to an embodiment of the present invention.

As shown in the figure, a conference call system according to an embodiment of the present invention includes a broadcast receiving terminal such as a digital TV 201 or a set-top box 202, a broadcast system 203, and a conference call server 204. The PSTN 205, the mobile communication network 206, and the VoIP 207 are connected to the telephone terminal 208, the mobile telephone terminal 209, and the VoIP connection terminal 210, respectively.

The digital TV 201 receives information about a call receiver who will participate in a conference call from the user on a two-way TV capable of delivering the user's input to the broadcast system 203. For example, the digital TV 201 receives a search keyword from a user and displays the phone number of the counterpart corresponding to the keyword on the screen. In addition, when the user selects a desired telephone number from the displayed telephone numbers, the selected telephone number is transmitted to the conference call server through the broadcasting system.

The set top box 202 refers to a separate receiver connected to a TV for receiving satellite broadcasting, cable TV, teletext, or voice multicasting. Since the set-top box 202 is connected to the digital TV 201 to exchange data with the digital TV 201, the present invention relays data transmitted and received by the digital TV 201 and the broadcasting system 203. In some cases, the phone number storage unit may be built-in, and the phone number of the counterpart corresponding to the search keyword received from the user may be retrieved from the digital TV 201 and provided through the digital TV 201. When the digital TV 201 does not need the set top box 202, the digital TV 201 may be directly connected to the broadcasting system 203 to transmit and receive data. In this case, the set top box 202 may also be used in the present invention. ) May be omitted.

The broadcast system 203 is a system for transmitting broadcast data to a broadcast receiving terminal. The broadcast system 203 may exchange data with a broadcast receiving terminal such as a digital TV 201 or a set-top box 202 through a broadcast communication network. In the present invention, the broadcast system 203 is connected to the conference call server 204 to relay data transmitted and received between the broadcast receiving terminal and the conference call server. Therefore, even if a separate device is not installed in the broadcast receiving terminal used directly by the user, the conference call service can be provided through the broadcast system 203 connected basically. In addition, since the broadcast system 203 may be connected to a plurality of broadcast receiving terminals as illustrated, there is an effect that a single conference call server 204 may be constructed and used by a plurality of users.

The conference call server 204 requests a call setup by using the telephone number of the call receiver and the user terminal corresponding to the user as a reception telephone number received through the broadcasting system 203, and corresponds to a call set up with the user terminal. A channel is set, a channel is allocated to a selected one of a plurality of rooms, and voice data received through at least one channel assigned to the room is synthesized and transmitted to the call receiver and the user terminal corresponding to the user. do. The conference call server 204 thus connects the call receiver selected by the user and the user terminal of the user to a single room, synthesizes voice data received from each user terminal, and transmits the synthesized voice data to the user terminals. To make it possible. Therefore, the user can make a conference call with the desired counterpart even if the user does not input a phone number separately.

The Public Switched Telephone Network (PSTN) 205 refers to a public switched telephone network operated by a public telecommunications operator. The PSTN is connected to the telephone terminal 208 to transfer voice data between the telephone terminals 208 to enable telephone calls. The mobile communication network 206 is a communication network connected to the mobile phone terminal 209 to transfer voice data between the mobile phone terminals 209 to enable phone calls. In addition, Voice over Internet Protocol (VoIP) 207 is a protocol for enabling telephone calls through the VoIP connection terminal 210 using an Internet communication network. The conference call system of the present invention enables conference calls between various terminals using the above various networks. Hereinafter, the above three networks will be referred to collectively as "communication networks", and the "communication networks" may include any type of network as long as the network enables a telephone connection in addition to the above three networks.

3 is a diagram illustrating an internal configuration of a conference call system according to an embodiment of the present invention. As shown in the figure, the conference call system 301 includes a call setup request unit 310, a channel input unit 320, a channel allocator 330, a voice data synthesizer 340, a channel output unit 350, and a telephone. The number storage unit 360 and the telephone number search unit 370 are included. Hereinafter, the components will be described in detail.

The call setup request unit 310 transmits a call setup request using a plurality of telephone numbers as a reception telephone number. To make a telephone call through a communication network, a call must be established between terminals. The call setup request unit 310 transmits a call setup request to the user terminal in order to set up a call between the conference call system 301 and the user terminal to participate in the conference call. The call establishment request may be determined differently according to the type of communication network 303 connected to the user terminal. In addition, the plurality of telephone numbers may be received from the broadcast receiving terminal 302 through a broadcast system connected to the conference call system 301.

The call setup request unit 310 periodically transmits a call setup request to an incoming call number which is not connected among the plurality of phone numbers. Even if a call establishment request is made, a call is not always set, and a call may not be set depending on the circumstances of the communication network 303, the circumstances of the terminal, or the circumstances of the call receiver. At this time, according to the conventional method, there was an inconvenience in that the user repeatedly attempted to set up a call by repeatedly inputting an unconnected telephone number. However, in the conference call system 301 according to the present invention, the call establishment request unit 310 periodically solves the above inconvenience by transmitting a call setup request to an unconnected received telephone number.

Then, the call setup request unit 310 transmits the information of the unconnected received telephone number of the plurality of telephone numbers to the broadcast receiving terminal 302 of the user who made the conference call request through the internal network interface unit. As described above, the call setup request unit 310 attempts to connect to the call number that is not connected periodically by making a call setup request. In this case, the user has a desire to check which call receiver is connected among the selected call receivers. have. Accordingly, the call setup request unit 310 may provide call setup information for the plurality of telephone numbers to the user through the broadcast receiving terminal 302. In particular, since the call setup request is not necessary periodically when the mobile phone terminal or the VoIP connection terminal is turned off, the user is informed that the user cannot connect to the terminal through the broadcast reception terminal 302. The call setup request may not be transmitted to the terminal.

The channel input unit 320 receives a call setup response signal from the user terminal in response to the call setup request transmitted from the call setup requester 310, and sets a channel corresponding to the call set up with the user terminal. In response to the call establishment request, when the call receiver receives the call from the user terminal, the call is set up, and the call establishment response signal is transmitted to the conference call system 301 that requested the call establishment from the user terminal. The channel input unit 320 receives the call setup response signal and sets up a channel for the connected call. A channel is used to manage a call connected to a user terminal in the conference call system 301. One call is set to one channel and is connected 1: 1.

The channel allocator 330 determines a room to allocate the channel set by the channel input unit 320 among the plurality of rooms, and allocates the channel to the room. Since the conference call system 301 according to the present invention may be connected to a broadcast system and connected to a plurality of broadcast receiving terminals 302, a plurality of conference calls may be simultaneously performed. Therefore, to distinguish each conference call, a room is set for each conference call, and the channel set by the channel input unit 320 is allocated to a room corresponding to the conference call. To determine the room to allocate the channel, the phone number information of the user terminal included in the call setup response signal received by the channel input unit 320 may be used. That is, the phone numbers of the call recipients to participate in the conference call corresponding to each room is stored in each room, and the room number of the user terminal included in the call setup response signal received from the channel input unit 320 is stored and the room is searched. The channel set by the channel input unit 320 is allocated to the searched room.

The voice data synthesizer 340 synthesizes voice data received through one or more channels assigned to the room. For the conference call, the user and the call receiver must be able to deliver each voice to the other party and receive the voices of all conference participants. Accordingly, the voice data synthesizing unit 340 synthesizes voice data received through a channel assigned to each room so that all conference call participants can simultaneously listen to the voices of other people participating in the conference call.

The channel output unit 350 transmits the voice data synthesized by the voice data synthesizer 340 to the user terminal. Since the synthesized voice data should be delivered to all participants participating in the conference call, the channel output unit 350 transmits the synthesized voice data to all user terminals of the call corresponding to the channel assigned to the room.

The phone number storage unit 360 stores the call number of the call recipient and the search information in correspondence, and stores the phone number of the user. The search information is information used to search for a call recipient, and may include one or more fields. The search information may be managed by grouping a plurality of call recipients. In addition, a plurality of phone numbers may be assigned to one call recipient. In some cases, the search information may correspond to one or more telephone numbers. The telephone number of the call recipient and the telephone number of the user are stored in a computer-readable predetermined recording device, and may be stored using a commercial database such as Oracle, MS-SQL, My-SQL, or DB2. It can be saved using any method that can be stored and managed.

In addition, the phone number storage unit 360 receives and stores the phone number and search information of the call receiver from the user when the phone number of the call receiver desired by the user is not stored. In this case, the user may input the telephone number and search information of the call receiver using the broadcast receiving terminal 302.

The phone number search unit 370 retrieves the phone number of the call receiver to participate in the conference call by referring to the information about the call receiver received from the broadcast receiving terminal 302 from the phone number storage unit 360 to call setup request unit. Forward to 310. The information about the call receiver may include information for identifying the call receiver such as the name, address or company name of the call receiver. Therefore, the user can perform a conference call with a desired call receiver only by inputting information for identifying the call receiver through the broadcast receiving terminal 302.

In addition, when the desired call recipient is not stored in the phone number storage unit 360, the phone number search unit 370 receives information about the call receiver and the phone number of the call receiver, and receives the phone number storage unit 360. ) Can be stored in

4 is a diagram illustrating an internal configuration of a conference call system according to another embodiment of the present invention. As shown in the figure, the conference call system 401 includes a phone number storage unit 410, a user interface unit 420, a phone number search unit 430, and a network interface unit 440.

The telephone number storage unit 410 stores the telephone number of the call recipient and the search information in correspondence, and stores the telephone number of the user. The search information is information used to search for a call recipient and may include one or more fields. Since the call recipient may have a plurality of telephone numbers, the search information may correspond to one or more telephone numbers. The telephone number of the call recipient and the telephone number of the user are stored in a computer-readable predetermined recording device, and may be stored using a commercial database such as Oracle, MS-SQL, My-SQL, or DB2. It can be saved using any method that can be stored and managed.

In addition, the phone number storage unit 410 receives and stores the phone number and search information of the call receiver from the user, if the phone number of the call receiver desired by the user is not stored.

The user interface 420 receives information about a call receiver who will participate in the conference call from the user. Since the user interface 420 may receive information about a call receiver from a user through a broadcast receiving terminal connected through a broadcast system, the user may conveniently enter a call by simply inputting information about the call receiver through the broadcast receiving terminal. You can select the recipient.

The phone number search unit 430 retrieves the phone number of the call receiver from the phone number storage unit 410 with reference to the information on the call receiver received by the user interface unit 420. The information about the call receiver may include information for identifying a call receiver such as a name, an address, or a company name of the call receiver, and the phone number of the retrieved call receiver to the user through the user interface 420. It may be provided to receive a selection input from the user to determine the call recipient to participate in the conference call.

The network interface unit 440 transmits a call setup request to the telephone number searched by the telephone number search unit 430 and the telephone number of the user to perform a conference call between the communication terminal of the retrieved telephone number and the communication terminal of the user. Do it. For example, the network interface unit 440 may transmit the retrieved telephone number and the user's telephone number to a predetermined conference call server 402 to transmit a call setup request to the retrieved telephone number and the telephone number of the user. Can be. In this case, the conference call server 402 transmits a call setup request to the retrieved telephone number and the telephone number of the user, and transmits a channel corresponding to the call set up in response to the call setup request. Allocate voice data received through a channel assigned to the room, and transmit the synthesized voice data back to the channel assigned to the room, thereby enabling a conference call.

The conference call system according to an exemplary embodiment of the present invention described above with reference to FIG. 4 may be installed and operated inside a broadcast receiving terminal such as a digital TV or a set-top box, or may be configured and operated as a separate device. . In addition, various applications will be possible for the location of the conference call system.

5 is a diagram illustrating data stored in a phone number storage unit of a conference call system according to an embodiment of the present invention.

As illustrated, the phone number storage unit 360 may store the search information 501 and the phone number 502 in a table form. The search information 501 includes fields of “name”, “company” and “address”, and the search information 501 searches for performing a search using the call receiver related information in the phone number search unit 370. Is utilized.

For example, if the user inputs "kim status" as the call recipient-related information, the phone number search unit 370 searches for information including the phrase "kim status" in the search information 501 and the phone number corresponding to the searched information. "010-1234-5678" is identified. In some cases, since one call receiver may have a plurality of user terminals, the phone number 502 corresponding to the search information 501 may be one or more. In addition, the telephone number 502 is a number for identifying the user terminal of the call receiver, and is used as an identifier for establishing a call with the user terminal.

FIG. 6 is a diagram illustrating a UI displayed on a TV screen when a conference call is performed using a conference call system according to an exemplary embodiment of the present invention. Since the conference call system according to an embodiment of the present invention may be connected to the broadcast receiving terminal and operate, the conference call system may provide a user interface (UI) to a user through a TV.

Reference numeral 601 denotes a screen for providing a list of call recipients selectable to the user through the broadcast receiving terminal and receiving selection input from the user. As shown, the conference call system according to the present invention provides a list of call recipients selectable to the user through the broadcast receiving terminal. The list of selectable call recipients may be a list of call recipients corresponding to call receiver information received from a user, or may be a list of all call recipients stored in the phone number storage. The user may select a call receiver by selecting a call receiver identification number 610 included in a list displayed on the screen through a remote controller of the TV.

Reference numeral 602 is a screen for providing a list of call recipients to participate in a conference call through the broadcast receiving terminal, and asking the user whether to execute the conference call. As shown in the figure, a list of selected call recipients is displayed on the screen, and the user may or may not execute a conference call by selecting a number corresponding to a desired menu from the call connection 620 and the cancel 630 through the remote control. have.

Reference numeral 603 denotes a screen for providing a call setup state for a terminal of a call receiver selected by the user through a broadcast receiving terminal when the user intends to execute a conference call. As shown in the figure, a list of call recipients to participate in a conference call is displayed, and call setup status information is displayed for each call recipient. The call setup status information may include any one of “connected” 640, “connecting” 650, or “waiting” 660, and when a call is set up, it is displayed as “connected” 640, and the call In the case of a setup request, it may be displayed as "connecting" 650, and in the case of not transmitting a call setup request, it may be displayed as "waiting" (660). For example, in the drawing, a call is set up with a user terminal of "Kim Soo", a call setup request is sent to a user terminal of "Kim Soo" and is waiting for a response, and a call setup request is not yet sent to a user terminal of "Kim Soo Chul". Did.

Reference numeral 604 is a screen for displaying a connection state of a call receiver to a user through a broadcast receiving terminal while a conference call is in progress. As shown, it is marked as "connected" for call recipients who are connected to the conference call system and participate in the conference call, and "unreachable" for call recipients who did not join the conference because the call was not established (670). Can be displayed as Since the conference call system according to the present invention can make a call setup request periodically to a user terminal which is not set up a call, the call receiver can participate in the middle of a conference call by continuously requesting call setup even during a conference call. have. However, if the call setup is impossible, such as when the mobile terminal is turned off, the call receiver corresponding to the mobile terminal is displayed through the broadcast receiving terminal without the request for continuous call setup. Can be. In addition, although not shown in the drawing, for the user who interrupted the connection during the conference call, it is possible to display "connection termination". Therefore, the user who presides at the conference call has an effect of confirming the call receiver who participated in the conference call and the call recipient who did not participate in the conference call.

In addition, the conference call system according to the present invention may provide various types of UI. For example, as in a messenger program installed on a computer terminal connected to the Internet to send and receive text messages between users, a list of call recipients is managed by groups, and a desired call recipient is selected from the list. It may also be possible to make a conference call with the selected call recipients. In addition, any type of modification may be possible to those skilled in the art of the present invention as long as the UI can be provided to the user by using the broadcast receiving terminal.

7 is a flowchart illustrating a flow of a conference call method according to an embodiment of the present invention.

In step S701, a call setup request is sent using a plurality of telephone numbers as a reception telephone number. To make a telephone call through a communication network, a call must be established between terminals. In step S701, a call setup request is sent to the user terminal in order to set up a call with the user terminal to participate in the conference call. The call establishment request may be determined differently according to the type of communication network connected to the user terminal, and the plurality of telephone numbers may be received from the broadcast receiving terminal 302 through a broadcasting system connected to the conference call system 301. .

Further, in step S701, a call is periodically sent to a received telephone number which is not connected among the plurality of telephone numbers, and a call number of the user terminal that is impossible to connect, such as power off of the terminal, among the plurality of telephone numbers. The information is transmitted to the broadcast receiving terminal. In addition, the call setup request may not be periodically transmitted to the telephone number of the user terminal which cannot be connected as described above.

In step S702, a call setup response signal from a user terminal to a call setup request sent in step S701 is received, and a channel corresponding to a call set up with the user terminal is set. In response to the call establishment request, when the call receiver receives the call from the user terminal, the call is set up, and the call establishment response signal is transmitted to the conference call system that requested the call establishment from the user terminal. In step S702, the call establishment response signal is received to establish a channel for the connected call. A channel is for managing a call connected to a user terminal, and one call is set to one channel and is connected 1: 1.

In step S703, a room to which the channel set in step S702 is assigned is determined, and the channel is allocated to the room. According to the conference call method according to the present invention, since a conference call can be made through a plurality of broadcast receiving terminals using a broadcast system, a plurality of conference calls can proceed simultaneously. Therefore, to distinguish each conference call, a room is set for each conference call, and the channel set in step S702 is allocated to a room corresponding to the conference call. To determine the room to allocate the channel, the phone number information of the user terminal included in the call setup response signal received in step S702 may be used. That is, for each room, the telephone numbers of the call recipients who will participate in the conference call corresponding to the room are stored, and the rooms in which the telephone numbers of the user terminals included in the call setup response signal received in step S702 are stored are searched, and the step ( The channel set in S702 is allocated to the searched room.

Step S704 synthesizes voice data received through one or more channels assigned to the room to which the channel was assigned in step S703. For the conference call, the user and the call receiver must be able to deliver each voice to the other party and receive the voices of all conference participants. Therefore, in step S704, by synthesizing the voice data received through the channel assigned to each room, all conference call participants can simultaneously listen to the voices of other people participating in the conference call.

In step S705, the voice data synthesized in step S704 is transmitted to the user terminal. Since the synthesized voice data in step S704 must be delivered to all participants participating in the conference call, in step S705 the synthesized voice data is transmitted to all user terminals of the call corresponding to the channel assigned to the room.

In addition, the conference call method according to an embodiment of the present invention maintains a telephone number retrieval unit for storing the telephone number and the search information of the call recipient, and receives information about the call recipient from the user to receive information about the call recipient The user may search for a desired call recipient by referring to the phone number search unit, and perform a conference call using the retrieved call number.

The conference call method according to the present invention can be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

According to the present invention, it is possible to make a conference call with the selected call receiver only by selecting a list of call recipients to participate in the conference call.

In addition, according to the present invention by receiving a call receiver to participate in the conference call through the broadcast receiving terminal, there is an effect to provide a user-friendly UI to the TV.

In addition, according to the present invention by connecting the conference call system to the broadcast system, there is an effect that allows the conference call using the broadcast receiving terminal without installing a separate module in the broadcast receiving terminal.

In addition, according to the present invention, by providing a phone book and a phone number search function, there is an effect that allows users to determine the call recipient to participate in the conference call by a simple search without entering a phone number.

In addition, according to the present invention, by periodically requesting a call setup to the terminal of the disconnected call receiver, even when the conference call is in progress, it is possible to attempt to connect with the disconnected call receiver without inputting a separate phone number. There is.

In addition, according to the present invention by providing the user with information on the connection state of the call receivers with the terminal through the broadcast receiving terminal, the user can conveniently check the connection state with the call receivers to participate in the conference call have.

Further, according to the present invention, by connecting a conference call system to a broadcast system to which a plurality of broadcast receiving terminals can be connected, installing one conference call system has an effect of enabling a conference call using a plurality of broadcast receiving terminals. have.

Claims (16)

A broadcast receiving terminal receiving information on a call receiver to participate in a conference call from a user; Request a call setup using the telephone number of the call receiver and the user terminal corresponding to the user as a received telephone number, set a channel corresponding to the set call with the user terminal, and set the channel in a selected room among a plurality of rooms. A conference call server which allocates and synthesizes voice data received through at least one channel assigned to the room and transmits the synthesized voice data to the call receiver and the user terminal corresponding to the user; And Broadcasting system for receiving the information on the call receiver from the broadcast receiving terminal and delivers to the conference call server Conference call system comprising a. The method of claim 1, wherein the broadcast receiving terminal, A telephone number storage unit for storing the telephone number and the search information of the call receiver and storing the telephone number of the user; And A phone number retrieval unit for retrieving a phone number of a call recipient to participate in a conference call by referring to the information on the call recipient from the phone number storage unit and delivering the phone number to the conference call server Conference call system comprising a. The method of claim 1, wherein the conference call server, And a plurality of user terminals to participate in one conference call and a plurality of channels corresponding to a set call to the same room. The method of claim 1, wherein the conference call server, And a call setup request is periodically transmitted using a telephone number of an unconnected user terminal among user terminals of the call receiver as a reception telephone number. A call setup request unit for transmitting a call setup request using a plurality of telephone numbers as a reception telephone number; A channel input unit configured to receive a call setup response signal from the user terminal in response to the call setup request and to set a channel corresponding to the call established with the user terminal; A channel allocator configured to determine a room to allocate the channel among a plurality of rooms and to allocate the channel to the room; A voice data synthesizer for synthesizing voice data received through at least one channel assigned to the room; And Channel output unit for transmitting the synthesized voice data to the user terminal Including, The plurality of phone numbers, Conference call system, characterized in that received from a broadcast system connected to the conference call system. The method of claim 5, wherein the channel allocation unit, And a plurality of user terminals to participate in one conference call and a plurality of channels corresponding to a set call to the same room. The method of claim 5, wherein the channel allocation unit, And a room for allocating the channel corresponding to the call set up with the user terminal based on the phone number of the user terminal. delete The method of claim 5, wherein the channel output unit, And transmit the synthesized voice data to all user terminals of a call corresponding to a channel assigned to the room. The method of claim 5, wherein the call setup request unit, And a call setup request is periodically transmitted to an incoming telephone number not connected among the plurality of telephone numbers. The method of claim 5, wherein the call setup request unit, Conference information system, characterized in that for transmitting the information of the incoming telephone number of the plurality of telephone numbers of the plurality of telephone numbers to the broadcast receiving terminal of the user making a conference call request through the internal network interface unit. The method of claim 5, A telephone number storage unit for storing the telephone number and the search information of the call receiver and storing the telephone number of the user; And A phone number retrieval unit for retrieving a phone number of a call recipient to participate in a conference call by referring to the information on the call recipient from the phone number storage unit and transferring the phone number to the call setup request unit Conference call system, characterized in that it further comprises. delete delete Transmitting a call setup request using a plurality of telephone numbers as a receiving telephone number; Receiving a call setup response signal from a user terminal for the call setup request, and setting a channel corresponding to a call established with the user terminal; Determining a room of the plurality of rooms to which the channel is to be allocated and allocating the channel to the room; Synthesizing voice data received through one or more channels assigned to the room; And Transmitting the synthesized voice data to the user terminal Including, The plurality of phone numbers, Conference call method, characterized in that received from the broadcast system connected to the conference call system. A computer-readable recording medium having recorded thereon a program for executing the method of claim 15.

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