KR20080046957A - Visual communication method for mobile communication terminal - Google Patents

Abstract

A video communication method for a mobile communication terminal is provided to intercept the video and voice of a terminal user transmitted to a target terminal selectively, thereby protecting user's privacy. A calling terminal checks whether a current mode is a default mode(201). The calling terminal exchanges a protocol for video communication with a called terminal(203). The two terminals exchange information about the default mode(207). The calling terminal changes a mode(208). The calling terminal stores the changed mode and transmits information about a changed mode to the called terminal(209). The called terminal receives the changed mode and transmits check information about the reception of the changed mode to the calling terminal(211). A called terminal user inputs a recording selection menu for recording video and voice signals(215). The control unit of the called terminal transmits a recording request message to the calling terminal(217). The calling terminal transmits a response message for the recording request message to the called terminal(219). The called terminal records the video and voice signals transmitted from the calling terminal(221).

Description

VISUAL COMMUNICATION METHOD FOR MOBILE COMMUNICATION TERMINAL}

1 is a block diagram of a mobile communication terminal according to the present invention;

2 is a schematic diagram showing a flow for controlling recording / recording between communication terminals according to the present invention;

3 is a flowchart illustrating a procedure for controlling recording / recording at the calling terminal according to the present invention; And

4 is a flowchart illustrating a procedure for controlling recording / recording on the receiving terminal side according to the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video call method between mobile communication terminals, and in particular, to control an individual video recording or audio recording of a target terminal to protect an individual's privacy and to implement the contents in a convenient manner. It is about.

Due to the development of various electronic and communication industries, portable wireless communication terminals have been widely used, and the functions of the terminals have been diversified in order to meet the needs of users.

In addition to a simple call function in software, various functions of downloading and listening to music files, receiving VOD (Video On Demand) files, watching a video, or photographing a predetermined subject and storing them as an album are added.

In addition, peripheral devices that are used by being attached or added to the terminal in hardware are also being developed. For example, a detachable or built-in digital camera device, a DMB (Digital Multimedia Broadcasting) function for listening to over-the-air broadcasts, and an ear installed to be mounted on a terminal to enable a call Microphone devices and the like can be roughly classified. In particular, a camera phone equipped with a camera module of 10 million pixels or more and performing a digital camera function has emerged. Currently, still images and video can be taken using the camera phone, but the camera phone has recently been used for video telephony.

A video call system proposed for the above-described video call includes an IMT-2000 wireless network, which includes a wideband code division multiple access (WCDMA) system, an evolution data only (EVDO) / evolution data and voice (EVDV) system. 2.5G and 3G wireless networks, such as systems).

In a video call system, both terminals exchange video streams through a network such as packet switched or circuit switched, and for control thereof, for example, in general, H.245. The protocol is used. Here, the H.245 protocol defines control messages for mediating performance and channel between terminals, and through these control messages, capability exchange (Capability Exchange), opening and closing of logical channels, and mode preference request. (Mode Request), Flow Control, and General Command.

In the video call system as described above, when the user talks with the other party, the sender video is compressed and transmitted by the calling terminal, and the receiving terminal restores the compressed other party video to the original video and displays it on the display unit. Of course, the video of the receiver is also compressed and transmitted to the calling terminal, and the calling terminal restores the compressed video of the receiver to the original video and displays it on the display unit.

Until now, the proposed video call system generally provides the ability to talk directly while looking at the other party.However, in addition to these functions, the user can record a video and play it when necessary while not in a call. Various services have been developed to provide convenience for general users, such as a function of transmitting recorded and stored video files to a counterpart through a multimedia message service (MMS).

In particular, the desire to store the appearance of the other party in a video call in real time from the user side is increasing, and in fact, a function that can save the other party's face in real time during a video call has been proposed.

However, the sender's right to portrait and use of the video content of the sender deserves the sender as the content provider, and the receiver must be strictly authorized by the sender to use the sender's video content. In other words, if one wants to store the sender's video content, the receiver must obtain the necessary rights.

A similar concept is DRM (Digital Right Management), but the current DRM pursues the concept of allowing a user to pay the cost of using the multimedia to a mobile communication service provider and to use the multimedia content within an appropriate authority. Therefore, it is not enough to apply the current DRM concept to the video call service. As described above, there is a need for a new method for protecting video content during a video call.

In order to solve the problems as described above, an object of the present invention is implemented to selectively record or record the user's video or audio to the other terminal through the setting of a separate recording / recording mode before the video call A video communication method of a mobile communication terminal is provided.

Another object of the present invention is to provide a video call method of a mobile communication terminal implemented to effectively protect personal privacy such as portrait rights of a terminal user by implementing a recording / recording only when the other terminal permits during a call.

In order to solve the above object, the present invention provides a video call method between mobile communication terminals, wherein during a video call, a message requesting recording / recording of a video / audio transmitted to a target terminal is received. And checking whether it is received from the target terminal, and when receiving the request message, transmitting a response message according to whether to allow the current recording / recording set by the user to the target terminal.

Preferably, in the video call method between mobile communication terminals, a process of checking whether a recording / recording function for a video / audio received from a target terminal is selected during a video call, and a recording / recording function is selected. If so, the method includes transmitting a recording / recording request message to the target terminal, and checking whether a response message regarding whether to allow the recording / recording of the requested message is received from the target terminal.

More preferably, the present invention provides a video call method between mobile communication terminals, the method comprising: checking whether a video call connection is performed with a target terminal, and detecting that the video call connection is being performed, And exchanging default setting information on whether a protocol and recording / recording are allowed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, if it is determined that the gist of the present invention may be unnecessarily obscured, the detailed description thereof will be omitted.

1 is a block diagram of a mobile communication terminal according to the present invention.

The controller 101 controls the overall operation of the mobile communication terminal. For example, processing and control for voice communication and data communication are performed, and in addition to the usual functions, according to the present invention, a key input is detected to change the corresponding call mode. For example, if the current mode of the terminal is set so that the receiving terminal does not record the voice and video transmitted from the calling terminal, this may be allowed by changing the mode. Also, when recording and recording the video and audio of the counterpart being transmitted from the target terminal to the counterpart terminal, such a request message is transmitted to the target terminal, and a response to the transmitted message is received to perform a recording / recording operation. To control. In addition, the recording and recording of the video and audio of the target terminal can be controlled to store in a predetermined file format in the memory unit.

The memory unit 102 performs a program for controlling the overall operation of the terminal and a function of temporarily storing data generated during the operation of the terminal. In addition, the memory unit corresponding to each of the contents (video, photo, MMS message, SMS message, E-mail, etc.) allowed by the target terminal according to the present invention, the content type, title, size, content, creation date , Codec information, content authority attributes, etc. are managed.

The key input unit 103 is used as data input means, and includes, for example, a plurality of numeric key buttons, function key buttons, and navigation key buttons. The key input unit 103 provides the key input data input by the user to the control unit 100 according to the present invention. For example, it can be used as a means for detecting the current mode of the terminal and changing the mode according to the user's input.

The display unit 106 displays state information generated during the operation of the mobile communication terminal, a limited number of characters, a large amount of moving images and still images, and the like. In addition, under the control of the control unit 101 according to the present invention, a pop-up window asking for mode switching before an image call is connected, and a recording / recording request message received from a counterpart terminal during communication may be output.

The camera unit 108 includes a camera sensor for converting an optical signal detected at the time of image capturing into an electrical signal, and a signal processor for converting an analog image signal photographed from the camera sensor into digital data. The camera sensor may be a CCD or a CMOS. The signal processor may be implemented by a digital signal processor (DSP).

The image processor 107 generates screen data for displaying an image signal output from the camera unit 108. The image processor 107 processes the image signal output from the camera unit 108 in units of frames, and outputs the frame image data in accordance with the characteristics and size of the display unit 106. In addition, the image processor 107 includes a predetermined image codec. The video codec codes a video signal in a set manner or decodes the coded frame video data into original frame video data. The image processor 107 generates and reproduces a video signal according to a mode set under the control of the controller 101. In addition, it may be a concept including a content controller for controlling a capture program of multimedia content, managing security-related encryption keys, managing mode attributes, and controlling content according to a set mode.

Hereinafter, since the RF module 105, the modem unit 104, and the codec 109 perform well-known functions of the mobile communication terminal, they will be omitted for convenience of description of the present invention.

2 is a schematic diagram illustrating a flow for controlling recording / recording between communication terminals according to the present invention, and illustrates a connection relationship for video calls between two terminals. For convenience of description, one terminal is called a calling terminal and the other terminal is called a receiving terminal. In addition, although the receiving terminal has been described in a manner of requesting recording / recording of video and audio received by the calling terminal, the calling terminal may request recording / recording of video and audio received from the receiving terminal.

As shown in FIG. 2, in step 201, the calling terminal checks a default mode. In general, in the default mode, it is preferable that the opposite terminal is set so as not to record and record its own video and audio. Thereafter, when the video call connection operation is performed by the calling terminal, in step 203, a protocol for making a video call is exchanged with the receiving terminal. In this case, the receiving terminal also checks the default mode, and in step 207, the two terminals exchange information on the mutual default mode.

Thereafter, the originating terminal may perform a mode change in step 208. For example, the mode change may be performed to allow the other party to set and not record his or her own video and audio. In this case, the flow proceeds to step 209 to store the changed mode in its own terminal and simultaneously transmits information about the changed mode to the receiving terminal. Accordingly, in step 211, the receiving terminal may receive the changed mode and respond to the calling terminal with confirmation information about the changed mode. Thereafter, the process proceeds to step 213 to perform a video call.

If the user of the receiving terminal wants to record / record the video and the output audio being displayed on the receiving terminal while performing a call in the default mode, step 215 of inputting a selection menu is performed. . In step 217, the control unit of the receiving terminal transmits a recording / recording request message to the calling terminal, and the calling terminal transmits a response message thereto. For example, if the receiving terminal sends a message to the calling terminal to the calling terminal, "Would you like to record video and audio. Do you accept?", The calling terminal may answer "Yes" or "No". "Can be sent to the receiving terminal. Accordingly, when the receiving terminal receives the permission message from the calling terminal, the receiving terminal may enter the step 221 to record / record the video and audio transmitted from the calling terminal, otherwise the video and the audio may be recorded / recorded. It will not be possible. Of course, it is obvious that the terminals continuously perform video calls regardless of whether or not to permit recording / recording of the video and audio transmitted from the calling terminal.

3 is a flowchart illustrating a procedure for controlling recording / recording at the calling terminal according to the present invention.

First, in step 301, the controller exchanges a protocol for video call with a corresponding receiving terminal. Here, the protocol may include, for example, camera, codec performance, etc. as various information for video call between the terminals. Thereafter, in step 303, the controller checks the default mode of the calling terminal and transmits the information to the receiving terminal. Also, the default mode of the receiving terminal may be received and confirmed. For example, the default mode may be a basic setting that prevents recording / recording of video and audio to be transmitted from the calling terminal.

Thereafter, in step 305, the controller of the calling terminal checks whether there is a mode change. In other words, it checks whether the change is made to allow the initial default setting which is not allowed to record / record according to the user's key input request. Also, in step 305, various settings for recording / recording by a user may be changed. For example, even if the recording / recording is allowed, the user may enter the sub list and select whether to always allow, select only once, or decide every time. In addition, the mode change request detection may be performed not only during the video call connection but also during the video call after step 309 which will be described later.

If the mode is changed in step 305, in step 307 to store the setting value for the newly changed mode, and transmits the information to the receiving terminal side, and enters the step 309 video call to perform video transmission and reception with the receiving terminal Enter the state. If a separate mode change is not detected in step 305, the controller immediately proceeds to step 309 and performs a video call with the receiving terminal.

Meanwhile, during the video call, the calling terminal enters step 311 and checks whether a recording / recording storage request is received from the receiving terminal. That is, it may be a storage request message that is received when an attempt is made to store the video and audio of a user who uses the originating terminal currently being transmitted to the receiving terminal. Thereafter, if the above-mentioned request message is received, step 313 is checked to allow the request for the request. In addition, even if it is detected in step 313 that the request is not allowed, the control unit of the calling terminal enters step 309 to maintain a video call with the receiving terminal continuously.

4 is a flowchart illustrating a procedure of controlling recording / recording on the receiving terminal side according to the present invention.

If the calling terminal detects that there is a call connection attempt, the control unit of the receiving terminal exchanges the protocol for the video call with the corresponding calling terminal in step 401. Here, the protocol may include, for example, camera, codec performance, etc. as various information for video call between the terminals. Then, in step 403, the control unit also checks the default mode of the receiving terminal, and transmits information on this to the calling terminal. Again, the default mode of the calling terminal may be received and confirmed. For example, the default mode may be a basic setting that prevents recording / recording of video and audio to be transmitted from the receiving terminal to the calling terminal.

Then, in step 405 it is checked whether the mode change of the calling terminal is received. That is, if there is a change in the default mode in the calling terminal, the controller detects this and stores the changed mode for the calling terminal in step 407. Such a mode may be a setting value capable of recording / recording the video and audio transmitted from the calling terminal at any time, as opposed to the default mode. Thereafter, the process proceeds to step 409 to perform a video call for transmitting and receiving video.

Thereafter, in step 411, it is checked whether there is a key input for recording / recording the video and audio transmitted from the calling terminal by the user. If the key input is detected, the process proceeds to step 413 and transmits a recording / recording request message to the calling terminal. In step 415, it is checked whether a response message is received from the calling terminal. If a response message has been received, that is, if a recording / recording permission message has been received, the process proceeds to step 417 to record / record the video and audio transmitted from the calling terminal.

Meanwhile, the algorithm assumes that the default value of the calling terminal is the "recording / recording blocking mode" until the video call between the two terminals. Therefore, after step 411, the method may further include checking a mode of the calling terminal and checking whether the recording / recording blocking mode is performed. If the current mode of the calling terminal is the recording / recording blocking mode, step 413 is entered. If the calling mode is not the blocking mode, step 417 is directly entered to step 417 to perform a recording / recording operation. Thereafter, the process proceeds to step 419 to check whether the recording / recording is completed, and if so, the video call can be continuously performed until the video call connection is detected.

Apparently, there are many ways to modify these embodiments while remaining within the scope of the claims. In other words, there may be many other ways in which the invention may be practiced without departing from the scope of the following claims.

According to the present invention, the privacy of the user can be effectively protected by performing selective blocking on the video / audio of the terminal user himself / herself transmitted to the target terminal before or during the video call.

Claims (11)

In a video call method between mobile communication terminals, Checking whether a message requesting recording / recording of the video / audio transmitted to the target terminal is received from the target terminal during a video call; And upon receiving the request message, transmitting a response message according to whether to allow the user to set the current recording / recording to the target terminal. The method of claim 1, Upon receipt of the request message, Checking whether the current recording / recording of the corresponding terminal is allowed; And transmitting a recording / recording permission message to the target terminal when the recording mode is allowed in the setting mode. The method of claim 1, Upon receipt of the request message, Checking whether the current recording / recording of the corresponding terminal is allowed; If the recording mode is a recording mode is blocked, further comprising the step of transmitting a recording / recording disallowed message to the target terminal. The method of claim 1, Upon receipt of the request message, Displaying contents of the received request message; And checking whether a response message according to the request message is input. In a video call method between mobile communication terminals, Checking whether a recording / recording function for the video / audio received from the target terminal is selected during the video call; If the recording / recording function is selected, sending a recording / recording request message to the target terminal, And checking whether a response message regarding whether to allow the recording / recording of the requested message is received from the target terminal. The method of claim 5, If the recording / recording function is selected, the process of checking the recording / recording setting mode for the previously stored target terminal; And recording / recording the currently played video / audio when the recording / recording setting mode for the target terminal is an allowable mode. The method of claim 5, And when a recording / recording permission response message is received with respect to the request message, recording / recording the currently played video / audio of the corresponding terminal. The method of claim 5, When the recording / recording disallow response message is received with respect to the request message, blocking the recording / recording of the video / audio currently played by the corresponding terminal and performing only a video call. In a video call method between mobile communication terminals, Checking whether video call connection with the target terminal is performed; If it is detected that the video call connection is being performed, exchanging default setting information regarding protocol and recording / recording according to a video call with a target terminal. The method of claim 9, After exchanging the default setting information, Checking whether the default information on whether to allow recording / recording is changed; If the default information is changed, storing the changed mode and transmitting the information to the target terminal; And transmitting and receiving a video for a video call with the target terminal. The method of claim 9, After exchanging the default setting information, Checking whether there is a change to the default setting information from a target terminal; If there is a change in the default setting information, updating and storing the changed mode as default information for the target terminal; And transmitting and receiving a video for a video call with the target terminal.

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