KR100892450B1 - Portable Terminal And Method Of Transmitting Alternate Image Using The Same - Google Patents

Abstract

Disclosed are a portable terminal capable of generating an alternative sound source suitable for an alternative image and transmitting the alternative screen when transmitting an alternative screen during a video call using the portable terminal and a method of transmitting an alternative image using the same. The alternative video transmission method in the portable terminal may include selecting one of a plurality of alternative images previously stored in the portable terminal when the alternative video mode for transmitting the alternative video to the video call counterpart is activated during the video call; And transmitting a substitute sound source corresponding to the selected substitute image to the counterpart. Therefore, when the user does not want to inform the user of his / her appearance or the current situation of the user during a video call, the user may execute the alternative video mode and transmit an alternative sound source corresponding to the alternative video to the counterpart, along with the alternative video, to the user or the surrounding video. And voice can be prevented from being transmitted.

Video call, alternate video, alternative sound

Description

Portable Terminal and Method of Transmitting Alternate Image Using The Same}

The present invention relates to a portable terminal, and more particularly, to a portable terminal capable of replacing a background with another screen during a video call and transmitting the same, and a method of transmitting an alternative video during a video call using the same.

With the development of mobile communication technologies such as Wideband Code Division Multiple Access (WCDMA), mobile communication systems have provided video call services in addition to voice call services. A video call is a service that simultaneously transmits video recorded by a camera provided in a mobile communication terminal in real time together with voice during a call. , Intimacy, and a sense of unity.

However, depending on the user's situation, there may be a caller who does not want to transmit the video. And even when a video call is received at an unknown number, it may be burdensome to transmit a video of itself or surroundings because the caller is not known. In addition, a video call may be problematic when the situation around the user is transmitted at an undesired moment, i.e., in a private space or in a space where security is required.

Therefore, there is a need for a video communication method that can prevent a video from being transmitted when the user does not want it, and according to such a request, another screen or a background screen that replaces his or her surroundings or a surrounding video can be transmitted. Alternative screen transfer techniques have been developed. In the conventional alternative screen transmission technology, when a video call is initiated on the portable terminal, an alternative video or an alternative background is transmitted to the video call counterpart terminal instead of the video or the surrounding video of the user making a video call. This helps to prevent transmission.

Accordingly, a first object of the present invention is to provide a method of transmitting a substitute video during a video call for transmitting a natural substitute screen during a video call.

It is also a second object of the present invention to provide a portable terminal capable of transmitting a natural alternative screen during a video call.

According to an aspect of the present invention, a method of transmitting an alternative video during a video call in a portable terminal according to an aspect of the present invention may be performed when an alternative video mode for transmitting an alternative video to a video call counterpart is activated. And selecting one of a plurality of substitute images previously stored in the portable terminal, and transmitting the selected substitute image and a substitute sound source corresponding to the selected substitute image to the counterpart.

The alternative video transmission method during the video call may further include a gain adjusting step of adjusting the gain of the microphone of the portable terminal when the alternative video mode is activated during the video call. When the alternative video mode is activated during the video call, the gain of the microphone may be relatively reduced as compared to the case where the alternative video mode is inactivated during the video call. The alternative video transmission method during the video call may further include determining whether to execute the alternative video mode for transmitting the alternative video to the video call counterpart during the video call.

In addition, the portable terminal for performing a video call according to an aspect of the present invention for achieving the second object of the present invention is a camera for photographing the user during the video call, the user's voice and the noise around the video call And an input microphone and a control unit for selecting an alternative image to be transmitted to the video call counterpart and an alternative sound source corresponding to the substitute video when an alternative video mode for transmitting an alternative video to the video call counterpart is activated during a video call.

The portable terminal may further include a memory unit configured to store a plurality of substitute images and substitute sound sources corresponding to the substitute images. The portable terminal may further include a gain controller configured to reduce the gain of the microphone when the substitute image and the substitute sound source corresponding to the substitute image are selected by the controller. The selection of the substitute image and the substitute sound source corresponding to the substitute image may be made automatically or manually. The substitute image may be a video previously photographed through the camera and the microphone. The portable terminal may further include a display unit which displays the substitute image when the substitute image mode is activated.

According to the mobile terminal and a method of transmitting an alternative image and an alternative sound source during a video call using the same, when the user does not want to notify himself or the current situation of his surroundings, an alternative image mode is executed by performing an alternative image mode. By transmitting the sound source to the other party, it is possible to prevent the transmission of the video and audio of itself or surroundings.

In addition, by transmitting an alternative sound source corresponding to the substitute image to the counterpart, a natural substitute screen may be provided.

In addition, by adjusting the gain of the audio input to the microphone when the alternative image mode is executed, the neighboring noise may not be transmitted to the counterpart, thereby not effectively informing the information about the surrounding situation.

As the present 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 be limited to the specific embodiment of the present invention, 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.

Meanwhile, in the embodiment of the present invention, the alternative image mode refers to a mode in which the user transmits a pre-stored substitute image instead of the user's image actually captured by the camera during the video call.

1 is a block diagram showing the configuration of a portable terminal according to an embodiment of the present invention.

As shown in FIG. 1, the portable terminal 100 according to the present invention includes a control unit 110, a memory unit 120, an image processor 140, a display unit 150, and an RF (Radio Frequency) module 160. , A voice processing unit 170 and a gain control unit 180.

The controller 110 may control the overall operation of the portable terminal 100 and may include a substitute image generator 111 for exporting a substitute image and a corresponding substitute sound source. When the user wants to export a substitute image instead of an image of an actual surrounding during a video call, the substitute image generator 111 generates a substitute sound source corresponding to the selected substitute image together with the selected substitute image.

The memory unit 120 stores the replacement image and the replacement sound source corresponding to the replacement image when necessary to transmit the replacement image and the replacement sound source in the video call. The basic alternative image and the corresponding sound source may be images and sound sources basically stored in the portable terminal 100, and go to a place where the user wants to use as an alternative image to a video directly using the camera 130 and a microphone. It may be a recorded image and corresponding sound sources.

The camera 130 outputs an image frame obtained by the image sensor to the image processor 140. The image processor 140 converts an image frame input from the camera 130 into displayable image data under the control of the controller 110 and provides it to the display unit 150.

The display unit 150 displays various image information, an image received from the base station, or an image stored in the memory unit 120 on the screen under the control of the controller 110.

The RF module 160 transmits / receives a radio signal (RF) with a mobile communication base station through an antenna.

The gain controller 180 adjusts the gain of the voice input into the microphone and outputs the gain to the controller 110. When the alternative video mode is not activated, the gain is increased so that a small sound input into the microphone can be transmitted together with the video of the user who is in the video call. The gain is reduced so that noise outside the user's voice during the video call is not transmitted to the other party. In FIG. 1, the gain controller 180 is illustrated as a separate function block from the controller 110, but the functions of the gain controller 180 may be integrated into the controller 110.

Hereinafter, an operation of generating a substitute image and a substitute sound source corresponding to the substitute image during a video call using the portable terminal 100 according to an embodiment of the present invention will be described with reference to FIG. 2.

First, when a video call is received at the user's portable terminal 100 (S210), the user determines whether to execute the alternative video mode (S220). If the user does not want to inform the other party of the situation around him or herself, if the alternative image mode is selected, the substitute image is transmitted instead of the actual image captured by the camera 130. Whether the alternative image mode is executed may be selected by, for example, pressing a predetermined key through a keypad provided in the portable terminal 100.

In this case, when the alternative video mode is not executed, a normal video call is performed (S230), and an image captured by the camera 130 and a voice input through a microphone are transmitted to the counterpart. In this case, the gain adjusting unit 180 may increase the gain to more accurately transmit the user's voice and the voice around the user.

On the other hand, when the alternative image mode is executed, the process proceeds to step S240. The controller 110 provides a plurality of replacement image lists stored in the memory unit 120, and the user selects an arbitrary replacement image from the plurality of replacement image lists through a keypad. In this case, the substitute image may be automatically selected by the control of the controller 110 or manually by the user. Such selection may be made through, for example, a keypad provided in the portable terminal 100. have.

On the other hand, when the replacement image is selected, the replacement sound source stored together with the replacement image is also selected. For example, a video taken by a user is stored together with an image and an audio. When one of a plurality of videos is selected as a substitute image, a sound source included in the corresponding video is also selected as an alternative sound source.

If the user wants to substitute the entire image of himself / herself transmitted to the video call counterpart with the substitute image, the selected substitute image and the corresponding substitute sound source are transmitted, and if only the surrounding environment other than the user's image is replaced with the substitute image, The user's image and the substitute image captured by the camera 130 may be synthesized and transmitted. To this end, the controller 110 may further include an image synthesizer (not shown) for synthesizing the substitute image and the user's appearance actually photographed through the camera 130.

When the replacement image and the corresponding replacement sound source are selected in step S240, the gain of the gain adjusting unit 180 is adjusted (S250). That is, when the substitute image and the corresponding alternative sound source are transmitted to the video call counterpart, the noise input to the microphone in the actual surrounding environment should not be transmitted, so that the substitute image and the sound source may be naturally implemented. For this purpose, the gain controller 180 may use a microphone. Set the gain low so that the ambient noise coming through the microphone is not transmitted to the other party. The gain of the gain adjusting unit 180 may be appropriately adjusted so that the user's voice can be transmitted relatively accurately, while the surrounding noise is relatively small compared to the alternative sound source.

In this way, when the replacement video and the corresponding replacement sound source is selected and the gain of the gain control unit 180 is adjusted, the replacement video call mode is started to start a video call with the other party (S260).

By doing so, if the user does not want to notify the other party about his or her current environment during a video call, the alternative video mode is executed, and the alternative video is transmitted, and along with the alternative sound source corresponding to the alternative video, Alternatively, the surrounding video and audio may be prevented from being transmitted.

On the other hand, by transmitting the replacement image and the replacement sound source by adjusting the gain of the noise input to the microphone so as not to be heard by the other party can not effectively inform the information about the surrounding situation.

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. Could be.

1 is a block diagram showing the configuration of a portable terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a method of transmitting an alternative video during a video call using a mobile terminal according to an embodiment of the present invention.

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

100: portable terminal 110: control unit

120: memory 130: camera

140: image processing unit 150: display unit

170: voice processing unit 180: gain control unit

Claims (10)

In the alternative image transmission method in a portable terminal, Selecting one of a plurality of alternative images previously stored in the portable terminal when an alternative image mode for transmitting a substitute image to a video call counterpart is activated during a video call; And Transmitting an alternative sound source corresponding to the selected substitute image and the selected substitute image to a counterpart; A gain adjustment step of adjusting the gain of the microphone of the portable terminal by reducing the gain of the microphone relative to the case where the alternative video mode is activated when the alternative video mode is activated during the video call. Alternative video transmission method. delete delete The method of claim 1, further comprising: determining whether to execute an alternative video mode for transmitting a replacement video to a video call counterpart during a video call. In a portable terminal for making a video call, A camera that photographs a user during a video call; A microphone that receives the user's voice and ambient noise during the video call; A control unit for selecting an alternative image to be transmitted to the video call counterpart and an alternative sound source corresponding to the substitute video when the alternative video mode for transmitting an alternative video to the video call counterpart is activated during a video call, and transmitting the alternative video and the alternative sound source to the counterpart ; And And a gain control unit for reducing the gain of the microphone relative to the case where the substitute image mode is deactivated when the substitute image and the substitute sound source corresponding to the substitute image are selected. The method of claim 5, And a memory unit for storing the substitute image and a plurality of substitute sound sources corresponding to the substitute image. delete The method of claim 5, The portable terminal, characterized in that the selection of the substitute image and the substitute sound source corresponding to the substitute image is made automatically or manually. The method of claim 5, The substitute image is a mobile terminal, characterized in that the video previously photographed through the camera and the microphone. The method of claim 5, And a display configured to display the substitute image when the substitute image mode is activated.

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