KR100861323B1 - Method for relay broadcast in image communication of portable terminal - Google Patents

Abstract

Disclosed is a broadcast relay method of a portable terminal capable of relaying a broadcast received during a video call. And stopping the transmission of the video signal for video communication, converting the received broadcast signal into the video call transmission standard, and transmitting the converted broadcast signal. Therefore, it is possible to relay a broadcast received during a video call to a portable terminal having no broadcast reception function.

Description

Broadcasting method during video call of mobile device {METHOD FOR RELAY BROADCAST IN IMAGE COMMUNICATION OF PORTABLE TERMINAL}

1 is a block diagram illustrating a configuration of a portable terminal having a broadcast relay function during a video call according to an embodiment of the present invention.

2 is a flowchart illustrating a broadcast relay method during a video call of a portable terminal according to an embodiment of the present invention.

3A is a user interface screen illustrating a video call of a portable terminal according to an embodiment of the present invention.

3B is a user interface screen illustrating broadcast relaying during a video call of a portable terminal according to an embodiment of the present invention.

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

10: camera unit 20: key input unit

30: display unit 40: processor

45: video / sound processing module 50: storage unit

60: broadcasting receiver 70: wireless transmitter and receiver

80: sound input and output unit

The present invention relates to a broadcast relay method of a video call of a portable terminal, and more particularly, to a broadcast call broadcast method of a portable terminal applicable to a portable terminal capable of video telephony.

Recently, with the commercialization of mobile communication terminals and services capable of video calls, an era has emerged that enables high-speed, high-quality voice and video communication from voice and short message-oriented calls.

In addition, as terrestrial digital multimedia broadcasting (DMB) service is started in the metropolitan area, it is moved through mobile terminals such as mobile communication terminals, DMB receivers, and personal digital assistants (PDAs). You can watch a variety of multimedia broadcasts.

DMB service is a service that can receive TV video, radio and text broadcasting on the move by using digital broadcasting technology. It can provide CD quality sound and data or video service, and digital communication that provides excellent fixed and mobile TV quality. It is a multimedia mobile broadcasting service that combines broadcasting and broadcasting.

In order to receive the DMB using the portable terminal, there is a limitation that the portable terminal must be provided with a receiver capable of receiving the DMB.

In addition, the portable terminal capable of a video call as described above continuously transmits the image of itself taken during the call to the other party in the call. Even if you do not end the video call has the disadvantage that you can not continue to send voice and video.

Accordingly, an object of the present invention is to provide a broadcast relaying method during a video call of a portable terminal capable of relaying a broadcast received during a video call.

According to an aspect of the present invention, a broadcast relaying method during a video call of a portable terminal according to an aspect of the present invention includes a video transmission interruption step of stopping transmission of a video signal for video communication when a broadcast relay function is activated during a video call; Converting the received broadcast signal into the video call transmission standard when the broadcast relay function is activated; and transmitting the converted broadcast signal to a counterpart portable terminal for a video call when the broadcast relay function is activated. It includes. The broadcast relay method during the video call of the portable terminal may further include a displaying step of displaying a broadcast image included in the received broadcast signal on a user interface screen of the portable terminal. The displaying may simultaneously display the broadcast video and the video communication video received from the mobile terminal of the other party for the video call. The broadcast relay method during the video call of the portable terminal may further include a voice blocking determination step of determining whether the user's voice is blocked. If it is determined that the voice of the user is not blocked, the method may further include transmitting a broadcast image of the broadcast signal and the voice of the user.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description.

However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. Hereinafter, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

Hereinafter, broadcasting refers to a concept including digital TV broadcasting. In other words, broadcast refers to a concept including all terrestrial DMB broadcasting, satellite DMB broadcasting, and DVB (Digital Video Broadcasting) broadcasting in Europe.

1 is a block diagram illustrating a configuration of a portable terminal having a broadcast relay function during a video call according to an embodiment of the present invention.

1, a portable terminal having a broadcast relay function during a video call according to an embodiment of the present invention includes a camera unit 10, a key input unit 20, a display unit 30, a processor 40, and a storage unit ( 50, a broadcast receiver 60, a wireless transmitter / receiver 70, and a sound input / output unit 80. In addition, the processor 40 includes an image / audio processing module 45.

The camera unit 10 converts an optical signal of a subject incident through a lens (not shown) into an electrical signal through an image sensor (not shown), and uses an A / D converter (not shown) provided therein. The converted electrical signal is converted into a digital image and output to the processor. In particular, the camera unit 10 photographs the user's image during a video call, and outputs the captured image to the processor 40.

The key input unit 20 includes a plurality of alphanumeric input keys and function keys for performing a special function, and transmits a key input signal corresponding to a user's key operation to the processor 40. In particular, the key input unit 20 transmits a key input signal corresponding to a user's key operation, such as a video call start, video call end, and broadcast relay, to the processor 40.

The display unit 30 is, for example, a display device such as a liquid crystal display (LCD), and displays a user interface such as a menu of a portable terminal, or displays execution screens of various application programs. In particular, the display unit 30 displays the video of the sender and the receiver on the screen during the video call, and displays the video of the receiver and the received broadcast on the screen when the broadcast is relayed during the video call.

When the processor 40 receives a key input signal corresponding to the start of a video call from the key input unit 20, the processor 40 receives a user's image of a predetermined frame per second from the camera unit 10, and receives the user's image from the audio input / output unit 80. After receiving the audio, the received image and audio are output to the display unit 30 and the audio input / output unit 80, respectively, and at the same time, the image and audio are multiplexed to conform to the wireless transmission standard through the image / audio processing module 45. And it is compressed and output to the wireless transmission and reception unit 70.

In addition, the video call signal of the video call counterpart is received from the wireless transmitter / receiver unit 70, and the received video call signal is demultiplexed and decoded through the video / audio processing module 45 to output the video signal to the display unit 30. The audio signal is output to the sound input / output unit 80.

When the processor 40 receives a key input signal corresponding to a broadcast relay from the key input unit 20 during a video call, the processor 40 stops photographing the user of the camera unit 10. 80 block the voice signal received from. The broadcast video signal and the broadcast sound signal are received from the broadcast receiver 60 to output the broadcast video signal to the display unit 30, and to output the broadcast sound signal to the audio input / output unit 80.

At the same time, by converting the received broadcast video signal and broadcast sound signal to the same as the video and audio signals transmitted during the video call through the video / sound processing module 45 and outputs to the wireless transmitter and receiver 70, a video call A broadcast screen and a broadcast sound may be output in place of the sender's video and audio in the other party's portable terminal.

The processor 40 includes a function for controlling the operation of all components included in the portable terminal in addition to the above functions.

The storage unit 50 stores a system program (for example, an operating system) necessary for basic operation of the portable terminal, various applications, or temporary data generated while the portable terminal executes the program, and stores information input by the user. .

The broadcast receiver 60 extracts a frequency signal corresponding to a broadcast channel selected by a user from a high frequency signal received by the antenna ANT1, converts the signal into a baseband signal, and decodes the converted baseband signal after channel decoding. The decoded packet stream is demultiplexed into a video signal and an audio signal, and the separated video and audio signals are decoded and output to the processor 40.

The radio transmitter / receiver 70 converts a radio frequency (RF) signal received through the antenna ANT2 into a baseband signal, and converts the baseband signal output from the processor 40 into a radio signal to convert the antenna ANT2 into a radio signal. Output through

The sound input / output unit 80 includes a speaker (not shown), an earphone terminal (not shown), and / or a microphone (not shown), and outputs a voice signal received from the processor 40 through the speaker, and through the microphone. The input voice of the user is converted into an electrical signal and output to the processor 40.

2 is a flowchart illustrating a broadcast relay method during a video call of a portable terminal according to an embodiment of the present invention.

First, when the portable terminal is initialized, the processor 40 determines whether a key input signal corresponding to the start of a video call is received from the key input unit 20 (step 201), and the key input signal corresponding to the start of the video call is received. If it is determined, the processor 40 transmits the image and sound received from the microphone of the camera unit 10 and the audio input and output unit 80 to the portable terminal of the video call counterpart via the wireless transmission and reception unit 60, and wireless transmission and reception The video and audio of the video call counterpart are received from the unit 60. Then, the image to be transmitted and the received image are displayed together on the display unit, and the user, that is, the voice of the sender or the received voice is output through the sound output unit 80 (step 203).

The processor 40 determines whether a key input signal corresponding to the end of the video call is received (step 205), and when it is determined that the key input signal corresponding to the end of the video call is received, the processor 40 ends the video call, If it is determined that the key input signal corresponding to the end of the video call is not received, it is determined whether the key input signal corresponding to the broadcast relay is received (step 207).

If it is determined in step 207 that the key input signal corresponding to the broadcast relay is not received, the process returns to step 203 to continue the video call, and if it is determined that the key input signal corresponding to the broadcast relay is received, the processor 40 Determines whether a key input signal corresponding to the voice interruption has been received from the key input unit 10 (step 209).

If it is determined that the key input signal corresponding to the voice cutoff is received, the processor 40 stops capturing the user of the camera unit 10 from the broadcast receiver 60 and receives the voice received from the audio input / output unit 80. By blocking the signal, the image signal to be transmitted is interrupted (step 211).

The broadcast video signal and the broadcast sound signal are received from the broadcast receiver 60 so that the broadcast video signal is displayed on the display unit 30, and the broadcast sound signal is output to the speaker of the sound input / output unit 80. At the same time, the broadcast video signal and the broadcast sound signal received from the broadcast receiver 60 are converted into a video call transmission format (step 213).

If it is determined in step 209 that the key input signal corresponding to the voice cutoff has not been received, the processor 40 receives the user's voice received from the microphone of the audio input / output unit 80 and the camera unit 10 receives the voice. User shooting is stopped (step 215).

Then, a broadcast video signal is received from the broadcast receiver 60 to be displayed on the display unit 30, and the received user voice signal is output to the speaker of the audio input / output unit 80. At the same time, the broadcast video signal and the user audio signal received from the broadcast receiver 60 are converted into a video call transmission format (step 217).

In other words, if the user executes the broadcast relay function during the video call, instead of transmitting the user's video, the user transmits the broadcast video and transmits the broadcast sound or the user's voice according to the user's selection. The broadcast video may be converted and transmitted, or both broadcast video and broadcast sound may be transmitted.

Thereafter, the processor 40 transmits the converted broadcast signal to the portable terminal of the video call counterpart through the wireless transmitter / receiver 70 or transmits the converted broadcast image and the user's audio signal to the portable terminal of the video call counterpart. Instead, the received broadcast can be displayed (step 219).

Then, the processor 40 determines whether a key input signal corresponding to the interruption of the broadcast relay is input from the key input unit 20 during the broadcast relay (step 221), and the key input signal corresponding to the interruption of the broadcast relay is not input. If it is determined, the process returns to step 209 to continue broadcasting, and if it is determined that a key input signal corresponding to the interruption of the broadcast is received, the process returns to step 203 to sequentially perform the following steps to image the user's video and audio. Send to the other party.

3A is a user interface screen illustrating a video call of a portable terminal according to an embodiment of the present invention, and FIG. 3B is a user interface screen illustrating broadcast relaying of a video call of a portable terminal according to an embodiment of the present invention.

3A and 3B, when the first user and the second user make a video call, the user interface screen 310 of the first user displays a video call with the first user screen A displaying the first user image. A second user screen B 'displaying an image of a second user who is the other party is simultaneously displayed.

In addition, the user interface screen 320 of the second user simultaneously displays a second user screen B displaying an image of the second user and a first user screen A ′ displaying an image of the first user.

That is, the portable terminal of the first user displays the first user screen A on the user interface screen 310 in the form of picture in picture (PIP) and simultaneously displays the video call signal including the video of the first user. And a video call signal including an image of the second user from the second user, and displays the received second user screen B 'on the user interface screen 310.

In an embodiment of the present invention, the first user screen A and the second user screen B 'are simultaneously displayed in a PIP form on the user interface screen. In another embodiment of the present invention, the first user screen is divided by splitting the screen. (A) and the second user screen B 'may be displayed.

As shown in FIG. 3A, when the first user performs broadcast relay while the first user and the second user perform a video call, as shown in FIG. 3B, the first user's user interface screen 311 is displayed on the first user interface screen 311. Instead of displaying the user image, the received broadcast screen C is displayed. At the same time, by transmitting the broadcast signal to the second user, the broadcast screen C 'is displayed on the user interface screen 321 of the second user instead of the image of the first user.

According to the broadcast relay method during a video call of the portable terminal as described above, if the broadcast relay function is activated during a video call, the received broadcast is converted to suit the transmission format of the video call signal, and then the user's video and audio are transmitted. Instead, it transmits a broadcast signal. Therefore, the broadcast received during the video call can be transmitted to a portable terminal having no broadcast reception function.

Although described with reference to the embodiments above, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the spirit and scope of the invention as set forth in the claims below. I will be able.

Claims (5)

Determining whether the user's voice is blocked when the broadcast relay function is activated during a video call; An image transmission interruption step of stopping transmission of the image signal for video communication by stopping user shooting and blocking the user audio signal when it is determined that the user's voice is blocked; A conversion step of converting the received broadcast signal into the video call transmission standard; And And transmitting the broadcast image and the broadcast sound of the broadcast signal to a counterpart portable terminal for a video call. The method of claim 1, The broadcast relaying method of a video call of the portable terminal further includes a display step of displaying a broadcast image included in the received broadcast signal on a user interface screen of the portable terminal. Way. The method of claim 2, And the displaying step simultaneously displays the broadcast video and the video communication video received from the other party's portable terminal for the video call. delete The method of claim 1, And if it is determined that the user's voice is not blocked, transmitting the broadcast image and the user's voice among the broadcast signals.

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