KR100617564B1 - A method of multimedia data transmission using video telephony in mobile station - Google Patents

Abstract

The present invention relates to a third generation (IMT-2000) mobile terminal, and in particular, a video call of a mobile terminal capable of providing video data and audio data stored in the mobile terminal to a receiver during a video call, which is a core service of a third generation mobile terminal. It relates to a multimedia data transmission method using.

The present invention provides a video decoder and decoder which encodes a screen received from a camera during a video call to provide a separate decoding and output screen of the encoder to play a video stored in the mobile terminal, and then executes the video sound encoder and decoder again. The video call to receive the video data that is executed by the sender's mobile terminal instead of the screen shot from the camera during the video call in the receiver's mobile terminal. The present invention provides a method for transmitting multimedia data. The present invention provides a multimedia data transmission method using a video call that can transmit or receive not only the above-mentioned video data but also image or sound data to a receiver during a video call.

Video call, video. camera.

Description

Method of multimedia data transmission using video call of mobile terminal {A method of multimedia data transmission using video telephony in mobile station}             

1 is a configuration diagram for providing a video call service using the third generation mobile terminal of the present invention,

2 is a schematic configuration diagram of a third generation mobile terminal of the present invention,

3 is an example of a mobile terminal screen and a video call menu during a video call of the present invention;

4 illustrates an example of an operation flowchart for transmitting moving picture, image, and audio data to a mobile terminal of a receiver during a video call of the present invention.

<Description of Major Symbols in Drawing>

20, 22: mobile terminal 30: mobile communication network

40: DCN (Data Core Network) 50: Video Call System

62: video sound encoder and decoder 63: video sound decoder

The present invention relates to a third generation (IMT-2000) mobile terminal, and in particular, a video call of a mobile terminal capable of providing video data and audio data stored in the mobile terminal to a receiver during a video call, which is a core service of a third generation mobile terminal. It relates to a multimedia data transmission method using.

In general, the third generation mobile communication service is classified into IMT-2000. Since the second generation of providing voice and short message (SMS) mobile communication services, mobile service providers are now moving to third generation technology capable of providing high-speed data services. Third-generation mobile communication technologies can provide new types of data services using higher bandwidths (1.9 GHz and above) than second generation (1.8 GHz and below), while consumers are not limited by time and place. Make the service available. Third generation mobile communication technology is expected to develop rapidly thanks to the combination of multimedia technology, voice recognition technology, mobile phone positioning technology, Bluetooth technology and the like.

One of the features of IMT-2000 is that it can provide wireless multimedia services that can overcome high-speed data and video services by breaking the existing voice-oriented services. Accordingly, advanced functions such as a color display, a large memory, a digital camera, a wireless Internet platform, a multiplex sound, an MP3 function, and a VOD function are being adopted in the mobile communication terminal. In other words, the development of mobile communication technology and the demands of consumers are accelerating the multimediaization of mobile communication terminals. A mobile terminal capable of a video call can perform a smooth video call on a cdma 2000 EV-DO or cdma2000 EV-DV model or more.

In the conventional third generation video telephony video telephony video call to the mobile terminal provided only the function of providing a picture taken by the camera attached to the mobile terminal to the receiver's mobile terminal or a substitute image.

By making a video call by transmitting and receiving only the screen captured by the camera and the alternate video screen, media data such as a moving picture held or the like cannot be shared or transmitted to the receiver. The user of the mobile terminal expects to provide better quality service.

The present invention is to solve the above-mentioned problems, a mobile terminal that can transmit a video file, video file, audio file stored in the user's mobile terminal using the video call during the video call with the third generation mobile terminal An object of the present invention is to provide a multimedia data transmission method using a video call.

In addition, the present invention provides a video sound encoder and decoder to encode and display the screen received from the camera during a video call to provide a separate decoding and output screen of the encoder to play the video stored in the mobile terminal in the video sound encoder and decoder An image that can receive the video data executed in the sender's mobile terminal instead of the screen shot from the camera during the video call in the receiver's mobile terminal by encoding the video to be executed again and providing it to the receiver's mobile terminal using the mobile communication network. An object of the present invention is to provide a method of transmitting multimedia data using a call.                         

An object of the present invention is to provide a method of transmitting multimedia data using a video call, which can transmit or receive not only the moving image data but also image or sound data to a receiver during a video call.

The multimedia data transmission method using a video call of the mobile terminal of the present invention comprises the first step in which the sender connects the video call with the receiver to the mobile terminal capable of video call and selects the video transmission from the data transmission menu, and the video stored in the sender's mobile terminal. Two steps of selecting and executing the data, three steps of inputting the executed video data to the video encoder and the decoder, and recoding the video data at the video encoder and the decoder and displaying the video data on the sender's mobile terminal. 4 steps of transmitting the video data to the receiver's mobile terminal via a network; and 5 steps of receiving the video data from the receiver's mobile terminal while talking to the other party and storing the video data in the receiver's mobile terminal. Characterized by The.

In addition, the present invention provides a first step in which the sender connects the video call with the receiver to the mobile terminal capable of video calls and selects the transmission of sound data in the data transmission menu, and the second step of selecting and executing the sound data stored in the sender's mobile terminal; And inputting the sound data to be executed by the sound encoder and the decoder unit, and recoding and reproducing the video data by the sound encoder and the decoder unit, and streaming them to the mobile terminal of the receiver via the mobile communication network. And transmitting the sound data to the receiver's mobile terminal while receiving and listening to the sound data at the receiver's mobile terminal.

The above three steps of the present invention is characterized in that the sound data to be transmitted by the transmitter is reproduced in the video and audio decoder provided in the sender's mobile terminal, and the reproduced sound data is provided as an input of a sound encoder and a decoder unit.

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

1 is a configuration diagram for providing a video call service using a third generation mobile terminal of the present invention, Figure 2 is a schematic configuration diagram of a third generation mobile terminal of the present invention, Figure 3 is a video call of the present invention 4 illustrates an example of a mobile terminal screen, and FIG. 4 illustrates an example of an operation flowchart for transmitting video, image, and audio data to a mobile terminal of a receiver during a video call of the present invention.

Figure 1 of the present invention is a block diagram for providing a video call service using a third generation mobile terminal.

1 is a base station (BTS) 24 which forms a mobile communication network with the mobile terminals 20 and 22 and adjusts data transmission / reception speeds with the mobile terminals 20 and 22, a video call, a multimedia service, and a video on demand (VOD) video. Controller (BSC) 26 and mobile exchanger 28 connected to controller (BSC) 28 to connect and control when using the On Demand service.

The call control of the mobile switching center (28) is made of a cell unit, which is an ATM method. In the mobility control, which is a sub-control, a subscriber registration, update function, etc., which guarantees the mobility of the mobile terminal, is processed. Perform service functions.

The DCN (Data Core Network) 40 connected to the controller (BSC) 26 of the mobile communication network 30 converts the access signal of the mobile terminal to be suitable for a video call, a multimedia service, and a VOD service.

The video call system 50 shown in FIG. 1 includes an encoding server for processing a charge when using a video call service, a multimedia service, and a VOD service with a mobile terminal, or providing data to a mobile terminal, such as a video or an MP3. It consists of a digital server that stores and provides voice data digitally, and a network streaming server that supplies sound data such as video data or music to the mobile communication network through streaming, and processes video calls.

The third generation mobile terminal is capable of making video calls, which can transmit up to 2 megabytes of data for compression and encoding of moving images, which is lower than H.261 and H.261, which are compression encoding methods used in video telephony and video conferencing. H.263., Which provides speed, is used, and G.723.1, which converts ACELP2 (algebraic code excited linear prediction) speech signals to 8 kbps or less, is used for speech encoding.

In addition, video calls are processed using H. 223 for multiplexing video, audio, and general data, and H. 245 for control of a system such as point-to-point channel allocation.

When the caller and the receiver having the mobile terminal 20 or 22 capable of making a video call with the third generation mobile terminal select a video call and the call connects, the mobile communication network 30 connects the call channel to the video call with the DCN 40. The system 50 communicates with each other while image data is transmitted and received.

2 is a schematic configuration diagram of a third generation mobile terminal of the present invention.

According to the present invention, data can be transmitted to a receiver during a video call. The data can be transmitted not only to a moving picture, an image, and an audio but also to a menu screen which can be viewed on a mobile terminal screen or a screen which is changed when the mobile terminal is operated.

2 shows an image of coding and reproducing image data and sound data received from a camera 61 and a camera 61 for receiving images by photographing with a mobile station modem (MSM) 60 that controls the overall operation of the mobile terminal. The memory 66 stores and utilizes the sound encoder and decoder 62 and the sound, video, image, application software, operating software, and the like, and is separately provided from the image sound encoder and decoder 62 and stored in the memory 66. A video audio decoder 63 capable of playing or viewing moving images, images or sound data and an RF module 64 for transmitting and receiving data wirelessly are schematically illustrated.

The video sound encoder and decoder 62 of the mobile terminal of the present invention processes video and sound data received from the camera 61 during a video call, and the video sound decoder 63 downloads and stores video, images, Run the sound data.

The present invention inputs the output of playing a video from the video sound decoder 63 to the video sound encoder and decoder 62 so as to transmit the video, sound, and image data during the video call. While showing the screen of the mobile terminal 20 of the video data can be transmitted and received in a manner of transmitting to the mobile terminal 22 of the receiver by streaming.

The camera 61_ includes a camera lens, a camera window covering or opening the camera lens at the time of shooting, a shield protecting the camera lens, and a control module controlling the camera lens at the time of taking a picture or a video.

Image sound encoder and decoder 62 is provided with an image sensor for sensing the image received by the camera 61, the image received from the image sensor to process and code the color, density, brightness, etc., and simultaneously with the image Sound data such as a received voice is coded, synchronized with the image data (SYNC), stored in the memory 66, and provided to the mobile terminal 22 of the receiver through the mobile communication network.

According to the present invention, a sender and a receiver having a third generation mobile terminal can transmit video, image, and sound data held by each other during a video call to the other party.

An example of transmitting video data is described below. A video transmission menu is selected in the video call menu 69 during video telephony using a camera attached to the other party and the mobile terminal, and stored in the memory 66. When the moving picture data is selected and executed, the moving picture data is executed by the video sound decoder 63, which is displayed on the LCD screen 65. FIG.

At the same time, the video sound decoder 63 controlled by the MSM 60 is provided as an input of the video sound encoder and decoder 62, and the video sound encoder and decoder 62 are coded and reproduced while recoding it. When transmitting to the receiver's mobile terminal, such as transmitting and receiving image and sound data in the video data is displayed on the LCD screen of the receiver's mobile terminal 22 to transmit the video data.

In addition, an example of transmitting sound data will be described. In the video call menu 69, sound data transmission is selected during the video call using the other party and the camera, and the sound data stored in the memory 66 is selected. When executed, the video data decoder 63 executes sound data, which is heard by the speaker of the mobile terminal 20.

In the MSM 60, the sound data to be executed is inputted to the video sound encoder and decoder 62, recoded, decoded, and transmitted to the receiver's mobile terminal 22. The sound data is executed through the receiver's speaker and the receiver receives the sound data. Can be stored and reused so that data can be shared during video calls.

The present invention can transmit data to the mobile terminal of the receiver during the video call in the above manner, the data is not only the video screen, image, audio, but also the menu screen that can be seen on the mobile terminal screen or the screen changed during the operation of the mobile terminal Can be sent to.

3 shows an example of a mobile terminal screen and an image call menu in a video call according to the present invention. In the mobile terminal 20, a reception screen 67 for viewing a screen transmitted from the mobile terminal 22 of the other party is shown. And a transmission screen 68 in which the user's own screen is transmitted to the mobile terminal 22 of the other party, and the user selects the video call menu 69 provided at the time of transmitting the data. In the above-described manner, video, image, and sound data can be transmitted to the other party, so that data can be shared with each other.

The video call menu 69 may select transmission of video, image, and sound data to the other party during a video call. In addition, a menu screen that can be viewed on the mobile terminal screen or a screen that is changed during operation of the mobile terminal may also be selected. 22).

4 shows an example of an operation flowchart for transmitting moving picture data to a mobile terminal of a receiver during a video call of the present invention.

The user makes a call to the other party and performs a video call with the third generation mobile terminal 20 (ST 70, ST 71).

When the video call is connected, the data between each other is transmitted and received through the video call system 50 via the controller 26 and the DCN 40, and the call is made.

When the video call is selected, the base station 24 adjusts the data processing speed between the mobile terminals 20 to transmit and receive video and audio data.

On the other hand, if the video transmission menu is selected by selecting the data video call menu 69 during the video call with the other party, the video data stored in the sender's mobile terminal 20 is selected and executed (ST 72 to ST). 74).

At this time, a video executed by the control of the MSM 60 is provided as an input of the video sound encoder and decoder 62, and the video sound encoder and decoder 62 encodes, decodes and executes the received video data to execute The mobile communication network 30 converts video data, which can be seen on the transmission screen 68 of the mobile terminal, and shown on the transmission screen 68, into streaming data to the receiver's mobile terminal 22 using the data transmission method in the video call. When transmitted via the video, the video is displayed on the receiver's mobile terminal 22 as if it is photographed and transmitted from the camera, and the receiver can receive and store the video data (ST 75 to ST 78).

If the data transfer menu is not selected during the video call, the user makes a video call with the other party and ends the call (ST 79).

4 illustrates an example of transmitting video data to the receiver's mobile terminal 22 using a third generation mobile terminal, but not only sound data but also when operating a menu screen or a mobile terminal that can be viewed on the screen of the mobile terminal. The changed screen can also be transmitted to the mobile terminal 22 of the receiver.

The present invention is implemented in the mobile terminal 20 itself according to the input of the video sound encoder and decoder 62 for compressing the image received from the camera 61 for video telephony as well as the camera image. The video and image files are transferred to the video sound encoder and decoder 62 to transmit video and sound data using a video call.

Therefore, in the conventional video call, it is possible to overcome the limitations caused by seeing each other and to communicate with each other and to transfer media data owned by the caller using a video call service, thereby extending the range of utilization of the video call and increasing user convenience.

For example, rather than describing a certain screen of a movie in a hundred words, if a user selects and displays a specific screen in a movie as an input, the user can make fun by utilizing the characteristics of a video call.

As described above, the present invention is capable of transmitting video, audio, and images stored in a memory through VT (Video telephony) in a 3G mobile terminal, and transmitting data using a video call service, which is a third generation core service. It has the effect of broadening the utilization of the service.

A mobile terminal user using a video call service has an effect of simply transmitting and sharing data necessary for each other using a video call service.

Claims (5)

A step 1 in which the sender makes a video call with the receiver by a mobile terminal capable of video calling and selects video transmission from a data transmission menu; Selecting and executing moving picture data stored in the sender's mobile terminal; Three steps of providing the executed moving image data to an image encoder and a decoder;  Recoding the video data by the video encoder and decoder unit and displaying the video data on the sender's mobile terminal and transmitting the video data to a receiver's mobile terminal via a network; And receiving the video data from the mobile terminal of the receiver while talking to the other party and storing the video data in the mobile terminal of the receiver. The method of claim 1, The data transmission menu is a multimedia data transmission method using a video call of a mobile terminal, characterized in that the transmission of audio, image files and all the screens shown in the mobile terminal. The method of claim 1, The third step is The multimedia data transmission using the video call of the mobile terminal, characterized in that for playing the video data to be transmitted by the sender in the video and audio decoder provided in the mobile terminal of the sender and to provide the reproduced video to the input of the video sound encoder and decoder unit. Way. A step in which the sender makes a video call with the receiver by using a mobile terminal capable of making a video call and selects sound data transmission from a data transmission menu; Selecting and executing sound data stored in the sender's mobile terminal; Three steps of providing the executed sound data to a sound encoder and decoder unit;  Recoding and reproducing the video data by the sound encoder and decoder unit and transmitting the video data in a streaming format to a receiver's mobile terminal via a mobile communication network; And storing the sound data in the receiver's mobile terminal while receiving and listening to the sound data in the receiver's mobile terminal. The method of claim 4, wherein The third step is The multimedia data transmission using the video call of the mobile terminal, characterized in that for playing the sound data to be transmitted by the sender in the video and audio decoder provided in the mobile terminal of the sender and providing the reproduced sound data to the input of the sound encoder and decoder unit. Way.

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