KR100625376B1 - Tv telephony system and video telephony service method using it - Google Patents

Abstract

The present invention relates to a TV telephone system, comprising: a camera for photographing a user (sender); A remote control for inputting an incoming call number; A TV for outputting voice and video data of the called party; And a microphone and a VoIP softphone program, when the incoming call number is input from the remote controller, requesting call setup by a soft switch through the Internet network, and when the call setup is completed, voice data of the caller input through the provided microphone and The camera controls to photograph the caller, converts the captured image data into a digital form, transmits the image data to the Internet network, and converts the voice and image data of the called party received through the Internet network into a digital or analog form. Characterized in that it comprises a set-top box for transmitting to the TV.

According to the present invention, the use of the video telephone service can be expanded by implementing the video telephone service in an inexpensive and convenient form.

VoIP, TV, Telephone System, Video Phone, Set Top Box, Soft Phone, Broadcasting System

Description

TV telephone system and video telephone service method using the same {TV TELEPHONY SYSTEM AND VIDEO TELEPHONY SERVICE METHOD USING IT}

1 is a configuration diagram of a TV telephone system according to the present invention;

2A is an internal block diagram of a set top box according to the present invention;

2b is an internal block diagram of a VoIP softphone according to the present invention;

3 is a network schematic diagram for a video telephone service to which a TV telephone system is applied according to the present invention;

4 is a video telephone service flowchart using a TV telephone system according to the present invention.

* Explanation of symbols for main parts of the drawings

100: TV phone system 110: camera

120: remote control 130: set-top box

131: VoIP softphone 131-1: I / O switching module

131-2: Phone screen display module 131-3: Phone book module

131-4: Data Processing Module 132: Middleware

133: JVM 134: OS

135: OS 140: TV

310: VoIP VoIP telephone system 320,334: HFC network

322,336: Head-End 324,338: Broadcasting System

326,332 CMTS 328 Internet

330: soft switch 340: called TV phone system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television telephone system, and in particular, a television telephone system consisting of a camera, a remote control unit, a set top box having a microphone, and a television, and having a VoIP softphone program mounted thereon, and having a video telephone service. It is about a method.

Currently, with the development of computer technology, the use of VoIP telephony services, which can provide multimedia services such as voice and video, while providing low-cost telephone calls due to the spread of high-speed network services.

The VoIP telephone service converts a digital or analog voice signal into a packet voice signal in order to use a communication infrastructure called the Internet instead of a conventional public telephone network. Makes it possible.

On the other hand, VoIP video telephony services can generally be classified into a method of using a separate dedicated VoIP TV telephone terminal and a method of installing a software-based VoIP telephone program for transmitting and receiving video data to a PC terminal.

However, there is a problem in that a method of using a dedicated VoIP TV phone terminal requires the purchase and installation of an expensive phone terminal separately. In addition, the method of using a PC terminal has a problem in that the power of the PC terminal should always be turned on, and a separate headset, a speaker, a microphone, etc. must be provided for a phone call. In particular, it can be a significant interface burden for users who are used to using a regular telephone. As a result, due to these problems, the situation of using VoIP video telephone service is hindered.

Accordingly, the present invention has been made to solve the above problems, and provides a video telephony system and a video telephony service method using the same by implementing a VoIP video telephony service in an inexpensive and convenient form. There is a purpose.

In order to achieve the above object, a TV telephone system using the Internet network according to the present invention includes a camera for photographing a user (sender); A remote control for inputting an incoming call number; A TV for outputting voice and video data of the called party; And a microphone and a VoIP softphone program, when the incoming call number is input from the remote controller, requesting call setup by a soft switch through the Internet network, and when the call setup is completed, voice data of the caller input through the provided microphone and The camera controls to photograph the caller, converts the captured image data into a digital form, transmits the image data to the Internet network, and converts the voice and image data of the called party received through the Internet network into a digital or analog form. Characterized in that it comprises a set-top box for transmitting to the TV.

At this time, the set-top box may be connected to a broadcasting system through an optical coaxial mixing network, and the VoIP softphone program may be transmitted and installed from the broadcasting system. In addition, the VoIP softphone program may be executed under the middleware base of any one of OCAP, MHP, and ACAP.

On the other hand, the video telephone service method using a TV telephone system according to the present invention, using a TV telephone system consisting of a camera, a remote control, a microphone, a set-top box, and a TV, which is transmitted from a broadcasting system through a coaxial mixed network Installing a VoIP softphone program in the set top box; At power-on, the set-top box displaying a TV telephone service menu through a TV; If the user (caller) selects the TV telephone service menu using the remote controller, displaying the incoming call number input window through the TV; When the caller inputs the incoming call number using the remote controller, the set-top box displays the inputted phone number through a TV and requests a call setup with a soft switch through the Internet; When the call setup is completed, the set-top box converts the voice data of the caller input through the microphone and the video data of the caller photographed through the camera into a digital form, transmits them to the Internet, and receives them through the Internet. And converting the called party's voice and video data into a digital or analog form and outputting it through the TV to make a voice and video call.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a configuration diagram of a TV telephone system according to the present invention, and includes a camera 110, a remote controller 120, a set top box 130, and a TV 140. The user can conveniently use the video telephone service through the TV telephone system 100 configured as described above.

As shown in FIG. 1, the camera 110 and the TV 140 are connected to the set top box 130, and the remote controller 120 may communicate with the set top box 130 in a wireless form.

Looking at the function of each component, the camera 110 is a CCD or CMOS camera that is commonly used in the user, that is installed in the position to shoot the caller to shoot the caller when the phone call.

The remote controller 120 is used to wirelessly enter the telephone number of the called party or receive an incoming call from the outside. The TV 140 is a TV receiver commonly used to output voice and video data of a called party during a phone call.

The set-top box 130 is an essential element of the present invention and interoperates with the camera 110, the remote controller 120, and the TV 140. The set-top box 130 is a microphone for inputting a caller's voice and a TV video telephone service. It is equipped with VoIP softphone program.

Looking at the function of the set-top box 130 in detail, when the power is turned on and the incoming call number is input through the remote control 120 by the caller requests the call setting to the soft switch, which is a call processing server through the connected Internet network .

When the call setup is completed, the caller's voice data input through the microphone and the camera 110 are controlled to photograph the caller, and the captured caller's video data is converted into a digital form and transmitted to the Internet. At this time, the audio data and the video data transmitted through the Internet network are converted into a predetermined compression format and transmitted. The audio data is converted into a voice compression format (for example, AC3) and transmitted. For example, it is converted to MPEG and transmitted.
In addition, the voice and video data of the called party received through the Internet network is converted into digital or analog form and transmitted to the TV 140. In this case, when the TV 140 is digital, the voice and video data received through the Internet network are transmitted to the TV 140 as it is. When the TV 140 is analog, the voice and video received through the Internet network. The data is converted into an analog form and transferred to the TV 140.

2A is an internal block diagram of a set top box according to the present invention, which is composed of VoIP softphone 131, middleware 132, JVM 133, and OS 134.

The OS 134 is an operating system, the JVM 133 sets a virtual CPU and an OS to execute a Java program, and the middleware 132 connects applications to exchange data with each other. For example, any one of an open broadcast common application platform (OCA), a multimedia home platform (MHP), and an advanced common application platform (ACAP) may be applied.

On the other hand, the VoIP softphone 131 is an input / output device switching module 131-1, a phone screen display module 131-2, a phone book module 131-3, and a data processing module as shown in FIG. 2B. 131-4.

The VoIP softphone 131 is a program for providing a TV telephone service in which an entity is executed based on the middleware 132. The input / output device switching module 131-1, the telephone screen display module 131-2, and the telephone are provided. The phone book service in the form of voice and video is implemented using the phone book module 131-3 and the data processing module 131-4.

Looking at the function, the input / output device switching module 131-1 provides an environment in which a telephone call can be made to a PC, a wireless LAN phone, a PDA, and the like, having a program for communication and input / output. That is, when a user wants to make a phone call using such a terminal, it recognizes this and inputs an incoming telephone number or, when the call setup is completed, provides an environment for inputting the caller's voice and outputting the called party's voice.

The telephone screen display module 131-2 displays a menu for a TV telephone service on a screen of the TV 140, input / output device switching module 131-1, a phone book module 131-3, and a data processing module ( 131-4).

The phone book module 131-3 provides the user to select a stored managed phone number when the user makes a phone call while managing and storing the phone number, or displays a corresponding phone number if the phone number is stored and managed when receiving a call from the outside. Mark on

The data processing module 131-4 has protocols such as SIP, RTP, and RTCP, and functions such as codecs to transmit and receive voice and video data to convert them into digital form or vice versa. Here, SIP is a protocol for establishing a connection, RTP is a protocol for transmitting and receiving voice and video data in real time, and RTCP is a protocol for controlling RTP.

3 is a network schematic diagram for a video telephony service to which a TV telephone system is applied according to the present invention, in which the calling TV telephone system 310, the soft switch 330, and the called TV telephone system 340 are connected to the Internet network 328. ). In addition, the calling TV telephone system 310 is connected to the broadcasting system 324 via the Head-End 322 via the HFC network 320, which is a coaxial mixed network. The called TV phone system 340 is then connected to the broadcast system 338 via the HFC network 334 via the Head-End 336. At this time, the HFC networks 320 and 334 are connected to the Internet network 328 through the CMTS 326 and 332, respectively.

The broadcast system 324, 338 transmits various broadcast programs. In the present invention, the VoIP softphone program is transmitted. The Head-Ends 322 and 336 are head-end devices that are commonly used to convert VoIP softphone programs transmitted by the broadcasting systems 324 and 338 into RF signals.

The CMTS (326,332) is a transmission system for a cable modem that is commonly used to transmit data for call processing to the soft switch 330, and to transmit audio and video data during a call to the calling TV telephone system 310 or the called party. Transmits to the TV telephone system 340. The soft switch 330 is a switch for processing VoIP calls that are commonly used and performs functions such as call control, resource management, and routing.

4 is a flowchart of a video telephone service using a TV telephone system according to the present invention, which is a video telephone service using a TV telephone system including a camera, a remote controller, a set-top box equipped with a VoIP softphone program, and a TV. It shows the process to use.

Referring to FIG. 4, when a broadcast system transmits a VoIP softphone program through an optical coaxial mixed network, the corresponding program is installed in the set-top box of the TV telephone system (S410 and S420). When the power of the TV telephone system is turned on, the set-top box displays the TV telephone service menu through the TV (S430).

Subsequently, when the user or the caller selects the TV telephone service menu using the remote controller, the set-top box displays an incoming call number input window through the TV (S440).

When the caller inputs an incoming telephone number to call using the remote controller, the set-top box displays the input telephone number through a TV and requests a call setup with a soft switch through the Internet (S450).

Finally, when the call setup is completed, the caller and the called party make a phone call while watching the voice and video form, that is, the other party directly on the screen (S460). That is, the set-top box converts the caller's voice data input through the microphone and the caller's video data photographed through the camera into a digital form and transmits the converted data to the Internet network, and receives the caller's voice received through the Internet network. The video data is converted into digital or analog format and then output through the TV.

As described above, the TV phone system and the video phone service method using the same can extend the use of the video phone service by implementing the VoIP video phone service in a cheap and convenient form.

Claims (5)

In a video telephone system using an internet network, A camera for photographing a user (sender); A remote control for inputting an incoming call number; A TV for outputting voice and video data of the called party; And It is provided with a microphone and a VoIP softphone program, when the incoming call number is input from the remote control, requesting call setup by a soft switch through the Internet network, and when the call setup is completed, the voice data of the caller input through the provided microphone and the After controlling the camera to shoot the caller, convert the captured image data into digital form and transmit it to the Internet network, and convert the voice and image data of the called party received through the Internet network into digital or analog form. TV telephone system comprising a set-top box for delivery to. The method of claim 1, The set top box is connected to the broadcasting system through a coaxial mixed network, And the VoIP softphone program is transmitted from the broadcasting system and installed. The method according to claim 1 or 2, And the VoIP softphone program is executed under the middleware base of any one of OCAP, MHP, and ACAP. The method of claim 1, The TV telephone system further includes any one terminal of a PC, a wireless LAN telephone, and a PDA equipped with a program for communication and input / output with the set-top box, TV telephone system, characterized in that by using the terminal to enter the incoming call number or call setup is completed, the caller's voice is input and the caller's voice is output. Use a TV phone system consisting of a camera, a remote control, a set-top box with a microphone, and a TV, Installing a VoIP softphone program transmitted from a broadcasting system through an optical coaxial mixed network in the set top box; At power-on, the set-top box displaying a TV telephone service menu through a TV; If the user (caller) selects the TV telephone service menu using the remote controller, displaying the incoming call number input window through the TV; When the caller inputs the incoming call number using the remote controller, the set-top box displays the inputted phone number through a TV and requests a call setup with a soft switch through the Internet; And When call setup is completed, the set-top box converts the voice data of the caller input through the microphone and the video data of the caller photographed through the camera into a digital form, transmits the data to the Internet, and receives the caller through the Internet. And converting audio and video data into a digital or analog form and outputting the audio and video data through the TV to make a phone call in the form of audio and video.

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