KR100812964B1 - Video-telephony control system and method thereof - Google Patents

Abstract

Disclosed is a control service scheme of a counterpart video terminal. To this end, the control server receives items that can control the other party's screen or the other party's screen-related image processing from the other party's video terminal during video telephone call setup, and the control server receives the other party's screen from the own video terminal during the video call. Receiving a control command or an image processing control command related to the counterpart screen; and transmitting, by the control server, the received control command to the counterpart video terminal. By controlling the video terminal of the other party through the network, it is possible to facilitate the control according to providing various video telephone additional services such as a video mailbox, a video information service, a video advertising service.

Description

VIDEO-TELEPHONY CONTROL SYSTEM AND METHOD THEREOF

1A to 1D are exemplary views showing screen control of a video terminal according to the prior art.

Figure 2 is a block diagram showing a counterpart video terminal control system according to an embodiment of the present invention.

3 is a flowchart illustrating a counterpart video terminal control system according to an embodiment of the present invention.

Figure 4 is a block diagram showing a counterpart video terminal control system according to another embodiment of the present invention.

The present invention relates to a video telephone service system, and more particularly, to a control service system and a method of a counterpart video terminal.

When the video call is made using the mobile phone, the screen size of the face of the other party and the face of the person displayed on the video terminal of the person is fixed. In this case, the provided screen frame provides a screen frame such as viewing only the counterpart image, viewing only the own image, and viewing both the counterpart and the own image. In addition, the screen frame resetting function provided by the user's video terminal itself provides an enlargement of the other party's image and an enlargement of the user's image (that is, a simple size change).

For example, this example is illustrated in FIGS. 1A-1D.

FIG. 1A shows a screen of a general video terminal, FIG. 1B shows a screen of a video terminal with an enlarged counterpart, FIG. 1C shows a screen of a video terminal with an enlarged person, and FIG. The image terminal to display together is shown.

A conventional technology for presenting such a video terminal is disclosed in Korean Patent Application No. 2005-0002086 entitled 'Video Call Image Output Method'. This prior art provides a method of rearranging an image of a counterpart with frequent movements by the video terminal itself so as not to overlap with the image of the user, and displaying the image on the screen.

Meanwhile, as a technology for controlling the other party's terminal, a technology for controlling the other party's video terminal through a complex frequency code (DTMF) for a visually impaired person or a layer difficult to use the terminal is a Korean patent entitled 'Control method of the other terminal'. Application No. 2004-0073404.

However, these prior arts present only a function of rearranging screen frames by the video terminal itself or by controlling a counterpart video terminal by transmitting a DTMF signal on a voice traffic channel to a counterpart video terminal. Therefore, even in such an environment, there is a problem that it is insufficient to expand the video telephone supplementary service.

Accordingly, an object of the present invention is to provide a counterpart video terminal control system and method for controlling various functions provided to the counterpart video terminal.

Another object of the present invention is to provide a counterpart video terminal control system and method for providing various additional services to the counterpart video terminal.

To this end, the method for controlling the other party's video terminal according to an embodiment of the present invention includes: (a) items that can control the other party's screen or the other party's screen-related image processing from the other party's video terminal during the video telephone call setup; (B) the control server receiving the counterpart screen control command or the counterpart screen related image processing control command from the own video terminal during the video call; and (c) the control server receiving the received control. Transmitting a command to the counterpart video terminal.

In addition, the method for controlling the other party's video terminal in different video telephone networks according to an embodiment of the present invention, (a) the control server to control the other party screen or the other party screen-related image processing from the other party video terminal during the video telephone call setup Converting the received items into a protocol interoperating with the own video terminal, and (b) the control server receiving the counterpart screen control command or the counterpart screen related image processing control command from the video terminal during the video call. And (c) the control server converting the received control command into a protocol interworking with the counterpart video terminal and transmitting the converted control command to the counterpart video terminal.

In addition, the method for controlling a video terminal according to an embodiment of the present invention, (a) the control server can control the screen or screen-related image processing from the video terminal during the server and service call setup for providing the additional service Receiving items; (b) the control server receiving the screen control command or screen related image processing control command from the server after the service call is set up; and (c) the control server receiving the received control. Sending a command to the video terminal.

On the other hand, according to an embodiment of the present invention, a video terminal control system including a plurality of video terminals capable of controlling image rearrangement, image size reset and image related image processing by itself, and at least one video telephone network, Receiving items for controlling the other party's screen or the other party's screen related image processing from the other party's video terminal during telephone call setup, and receiving the other party's screen control command or the other party's screen related image processing control command from the own video terminal during the video call. After that, the control command is transmitted to the counterpart image terminal.

In addition, according to an embodiment of the present invention, at least one video terminal capable of controlling image repositioning, image resizing and image related image processing by itself, a video telephone network, and the video terminal via the video telephone network. The video terminal control system including an additional service server providing an additional service receives items capable of controlling screen or screen related image processing from the video terminal during the service call setup with the additional service server, and sets the service call. And a control server for receiving the screen control command or screen related image processing control command from the additional service server and then transmitting the control command to the image terminal.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments. Like reference numerals refer to like or similar elements throughout the drawings.

Prior to describing an embodiment of the present invention, items that can be controlled by the other party's video terminal include screen frame setting control of the other party's video terminal and screen-related image processing control of the other party's video terminal.

The screen frame setting control of the counterpart image terminal includes enlargement of the counterpart image, enlargement of the own image, full view of the counterpart image, or full view of the own image. Further, the screen-related image processing control of the counterpart image terminal includes image color change such as screen black and white processing, special effects such as screen mosaic, and image processing such as voice modulation or image modulation.

Accordingly, various video telephone supplementary services such as a video mailbox service, a video information service, a video advertising service, and the like can be provided through the control of the counterpart video terminal.

The enumeration of the controllable items in the counterpart image terminal is merely an example, and it is natural that items which are easily listed by those skilled in the art should be included even if the items are not listed in the equivalent range.

2 is a block diagram illustrating a counterpart video terminal control system according to an embodiment of the present invention.

As shown in Fig. 2, the counterpart image terminal control system includes a self image terminal 100 and a counterpart image terminal (which can control image repositioning, image size resetting, and image related image processing by itself, as described in the prior art). 300 and a video telephone network 200 that provides a video telephone service to each of the video terminals 100 and 300. In addition, the video telephone network 200 includes a control server 250 for processing counterpart video terminal control messages transmitted from video terminals.

As described above, the image terminals 100 and 300 can control image repositioning, image resizing and image related image processing by themselves, and also receive control messages transmitted from the video telephone network 200 and control the image. Accordingly, an image adding service is provided to the user.

In addition, the image terminals 100 and 300 provide a user interface (not shown) for performing the above-described functions, and the interface principle may be a menu selection method through key button manipulation of the image terminal.

The video telephone network 200 includes, for example, a 3G-324M based video telephone network and a SIP (Session Initiation Protocol) based video telephone network. Accordingly, the control server 250 may simply include the function in the gateway (not shown) of the network 200 according to each video telephone network 200 described above, and the function may be a core network component (eg, 3G). It may be included in a switch of a -324M based video telephone network, a multimedia session control system (MSS) based on a Session Initiation Protocol (SIP), and a server (eg, video) for an additional video telephone service. It may be included in a mailbox server, etc.), and may be separately set as a separate server to be interlocked with the video telephone network 200, but this is a network designer's option.

In addition, the control server 250 receives the controllable items from the video terminals 100 and 300 at the time of the video telephone call setup, and for the requested control from the own video terminal 100 at the video telephone after the call setup. The command is received and transmitted to the other party's video terminal 300. The method of receiving / transmitting these items is according to the video telephone network 200.

For example, in a 3G-324M based video telephone network, when the capability exchange of the video terminals 100 and 300 is performed during a H.245 (control signaling) negotiation process when setting up a video telephone call, the video terminals 100 and 300 are transmitted. Receive controllable items. In addition, during a subsequent video call, a command included in a User Input Indication (UII) message of the H.245 protocol is received and transmitted to the counterpart video terminal 300.

In addition, the SIP-based video telephone network receives the controllable items included in the SDP in the INVITE message during the SIP video telephone call setup, and receives the command included in the UPDATE message during the subsequent SIP video telephone call so as to receive the counterpart video terminal 300. To transmit.

In addition, the control command requested by the server (not shown) for providing the additional service is processed similarly to the above-described process.

3 is a flowchart illustrating a counterpart video terminal control method according to an embodiment of the present invention.

In step S301, items controllable by the own video terminal 100 and the counterpart video terminal 300 are received during the video telephone call setup. For example, in 3G-324M based video telephone network, H.245 (control signaling) negotiation is performed when setting up a video telephone call. During the negotiation process, when the capability exchange of the video terminals 100 and 300 is made, the controllable item transmitted from the video terminals 100 and 300 is received. In addition, the SIP-based video telephone network receives the controllable items included in the SDP in the INVITE message during the SIP video telephone call setup.

In step S302, the requested control command is received from the own video terminal 100 during the video call and transmitted to the counterpart video terminal 300. FIG. In this case, it is natural that the control command is transmitted to the counterpart image terminal 300 within the range of the controllable items received.

For example, in the case of a control command requested by the user video terminal 100, in the 3G-324M based video telephone network, the corresponding command is included in a User Input Indication (UII) message of the H.245 protocol to the counterpart video terminal 300. In the SIP-based video telephone network, the corresponding command is included in an UPDATE message and transmitted to the counterpart video terminal 300.

In operation S303, the counterpart image terminal 300 performs screen frame setting control and screen related image processing control of the counterpart image terminal 300 according to the received control command.

On the other hand, the control server 250 includes a video mailbox service, a video information service, and a video advertisement service related message transmitted from the server in association with the servers (not shown) for providing the additional service described above in the command. Send it.

That is, items that can control screen or screen-related image processing are received from the image terminal 100 during server setup and service call setup for providing an additional service. For example, in a 3G-324M based video telephone network, when the capability exchange of the video terminal 100 is made during a control signaling (H.245) negotiation process when establishing a service call, a controllable item transmitted from the video terminal is received. In addition, the SIP-based video telephone network receives controllable items included in the SDP in the INVITE message during SIP service call setup.

Subsequently, the screen control command or the screen related image processing control command is received from the server for providing the additional service after the service call is set up. For example, in a 3G-324M based video telephone network, a corresponding command is included in a User Input Indication (UII) message of the H.245 protocol and transmitted to the video terminal 100. In a SIP based video telephone network, an UPDATE message is transmitted. It is included in the transmission to the image terminal 100.

4 is a configuration diagram illustrating a counterpart video terminal control system according to another embodiment of the present invention.

As shown in Fig. 4, the other party video terminal control system includes the own video terminal 100 and the other video terminal 700, which can control image rearrangement, image size resetting, and image related image processing by itself, and the own image. A first video telephone network 200 for providing a video telephone service to the terminal 100, a second video telephone network 600 for providing a video telephone service to the counterpart video terminal 700, and first and second images. It includes an interlocking gateway 500 for interworking the telephone network (200, 600) with each other. In addition, the first video telephone network 200 and / or the second video telephone network 600 may control the control server 250 to process messages for controlling the counterpart video terminal transmitted from the video terminals 100 and 700. It includes.

Here, the own video terminal 100 and the counterpart video terminal 700, the first and second video telephone networks 200 and 600, and the control server 250 are the own video terminal 100 and the counterpart image of FIG. 1. Since the terminal 300, the video telephone network 200, the control server 250 and their functions are similar to each other, detailed description thereof will be omitted.

The interworking gateway 500 performs protocol conversion between the networks 200 and 600. For example, bearer conversion is performed so that 3G-324M based video telephone network and SIP based video telephone network can be interworked.

A counterpart video terminal control method according to another embodiment of the present invention configured as described above will be described with reference to FIG. Here, a case in which the first video telephone network 200 is a 3G-324M based video telephone network and the second video telephone network 600 is a SIP based video telephone network will be described as an example. It can be understood.

In step S301, items controllable by the own video terminal 100 and the counterpart video terminal 700 are received during the video telephone call setup. That is, in the first video telephone network 200, H.245 negotiation is performed when setting up a video telephone call. When the capability exchange of the video terminals 100 and 700 is made during this negotiation process, the controllable item transmitted from the own video terminal 100 is received. At the same time, the second video telephone network 600 receives the controllable items included in the SDP in the INVITE message during the SIP video telephone call setup. At this time, the controllable items in the SIP-based video telephone network are converted into protocols through the interworking gateway 500 and received by the control server 250.

In step S302, the requested control command is received from the own video terminal 100 during the video call and transmitted to the counterpart video terminal 700. In this case, it is natural that the control command is transmitted to the counterpart image terminal 700 within the range of the received controllable items.

For example, when the control server 250 receives a command for controlling the counterpart video terminal 700 from the video terminal 100 during a video call, the control server 250 sends the command to a User Input Indication (UII) message of the H.245 protocol. And transmit to the other party's video terminal 700. At this time, the control command is protocol-translated by the interworking gateway 500, and the second video telephone network transmits the corresponding command to the counterpart video terminal 700 by including the command in an UPDATE message.

In operation S303, the counterpart image terminal 700 performs screen frame setting control and screen related image processing control of the counterpart image terminal 700 according to the received control command.

While the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will recognize that various modifications or changes can be made without departing from the spirit and scope of the invention.

According to the present invention, the other party's video terminal can be controlled through a network, thereby easily controlling various video phone additional services such as a video mailbox, a video information service, a video advertisement service, and the like.

In addition, according to the present invention, the user can have a video call fun through the image processing control associated with the screen and the screen of the counterpart image terminal.

Claims (11)

In the method for controlling the counterpart video terminal, (a) receiving, by the control server, items capable of controlling the counterpart screen or the counterpart screen related image processing from the counterpart video terminal during the video telephone call setup; (b) the control server receiving the counterpart screen control command or the counterpart screen related image processing control command from the own video terminal during the video call; and (c) the control server transmitting the received control command to the counterpart video terminal. A method of controlling a counterpart video terminal in a different video telephone network, (a) the control server converting and receiving items from the other party's video terminal that control the other party's screen or the other party's screen related image processing into a protocol interworking with the own video terminal during the video telephone call setup; (b) the control server receiving the counterpart screen control command or the counterpart screen related image processing control command from the own video terminal during a video call; (c) the control server converting the received control command into a protocol interworking with the counterpart video terminal and transmitting the converted control command to the counterpart video terminal. The method of claim 1, wherein step (a) comprises: And receiving the controllable items during the H.245 negotiation process when the own video terminal and the counterpart video terminal are connected to a 3G-324M based video telephone network. The method of claim 1 or 2, wherein step (b) comprises: Receiving the counterpart screen control command or the counterpart screen related image processing control command included in a UII message in a H.245 protocol. The method of claim 1, wherein step (a) comprises: And receiving the controllable items included in the INVITE message when the own video terminal and the counterpart video terminal are connected to a SIP-based video telephone network. The method of claim 1 or 2, wherein step (b) comprises: Receiving the counterpart screen control command or the counterpart screen related image processing control command included in an UPDATE message. In the method for controlling the video terminal, (a) receiving, by the control server, items capable of controlling screen or screen related image processing from a video terminal during server and service call setup for providing an additional service; (b) the control server receiving the screen control command or screen related image processing control command from the server after setting up the service call; (c) the control server transmitting the received control command to the video terminal. The method of claim 7, wherein the additional service, And a video mailbox service, a video information service, or a video advertising service. A video terminal control system comprising a plurality of video terminals capable of controlling image rearrangement, image size reset and image related image processing by themselves, and at least one video telephone network. Receiving items for controlling the other party's screen or the other party's screen-related image processing from the other party's video terminal during video telephone call setup, and receiving the other party's screen control command or the other party's screen related image processing control command from the own video terminal during the video call. And transmit the control command to the counterpart video terminal. The method of claim 9, And an interworking gateway for performing a corresponding protocol conversion for interworking the different video telephone networks when the video telephone network is composed of a plurality of video telephone networks. At least one video terminal capable of controlling image repositioning, image resizing and image related image processing by itself, a video telephone network, and an additional service server for providing additional services to the video terminal via the video telephone network. In the video terminal control system, Receiving items for controlling screen or screen related image processing from a video terminal during the service call setup with the additional service server, and receiving the screen control command or screen related image processing control command from the additional service server after the service call setup. And a control server for transmitting the control command to the video terminal after reception.

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