# US 2013/0155099 A1 · Mobile terminal and control method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155099 A1 - Document ID: US20130155099A1 - Status: Published application - Kind: A1 - Application number: 13/523,771 - Filed: 2012-06-14 - Published: 2013-06-20 - Earliest claimed: 2011-12-15 - Assignees: LG Electronics Inc. - Inventors: Yusol HA; Juha HYUN; Sunmi CHOI; Jeongeun CHOI - Web page: https://patentgrep.com/patent/US20130155099A1 ## CPC - H04M 1/72403: with means for local support of applications that increase the functionality - G06F 2203/04802: 3D-info-object: information is displayed on the internal or external surface of a three dimensional manipulable object, e.g. on the faces of a cube that can be rotated by the user - G06F 2203/04803: Split screen, i.e. subdividing the display area or the window area into separate subareas - H04M 2250/62: user interface aspects of conference calls - H04N 2007/145: {Handheld terminals} - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A mobile terminal having a video call function and a control method thereof are provided. The mobile terminal includes: a display unit configured to allow for a touch input and display a plurality of images received from a plurality of counterparts, respectively, during a video call; a sensing unit configured to sense a touch input with respect to at least one of the plurality of images; and a controller changing the touched image to any one of images related to the touched image. The image to be changed among the related images is determined on the basis of a direction of the touch input. ## Claims ### Claim 1 A mobile terminal comprising: a display unit configured to display a plurality of images received from a plurality of counterparts during a video call; a sensing unit configured to sense a touch input to at least one of the plurality of images; and a controller configured to control the display unit to change the display of a touched at least one of the plurality of images to a changed image that is related to the touched at least one of the plurality of images, wherein the changed image is determined based on a direction of movement of the sensed touch input. ### Claim 2 (depends on 1) The mobile terminal of claim 1, wherein the controller is further configured to: control a function related to a video call with a counterpart when a touch input to the changed image is sensed within a reference time; and control the display unit to restore the display of the touched at least one of the plurality of images, which was displayed prior to display of the changed image, when the touch input is not sensed within the reference time. ### Claim 3 (depends on 2) The mobile terminal of claim 2, wherein: the changed image comprises an input window; and the controller is further configured to: sense a touch input applied to the input window, and change a trace of the touch input applied to the input window and store image data in a memory when the touch input applied to the input window is sensed. ### Claim 4 (depends on 3) The mobile terminal of claim 3, wherein the controller is further configured to: change the trace of the touch input to at least image data or text data; sense a touch input received after the trace of the touch input is changed, control the display unit to restore the display of the touched at least one of the plurality of images, which was displayed prior to display of the changed image, and display the at least image data or text data on the touched at least one of the plurality of images when the controller senses the input received after the trace of the touch input is changed. ### Claim 5 (depends on 4) The mobile terminal of claim 4, wherein the controller is further configured to: change the trace of the touch input to the text data and store the text data in the memory when the trace of the touch input is recognized as a handwritten character. ### Claim 6 (depends on 2) The mobile terminal of claim 2, wherein: the changed image includes an object related to a social network service (SNS); and the controller is further configured to: sense a touch input to the object, and display at least one of a plurality of contents posted in an SNS server of a counterpart corresponding to the touched at least one of the plurality of images when the touch input to the object is sensed. ### Claim 7 (depends on 6) The mobile terminal of claim 6, wherein the controller is further configured to: vary an amount of content displayed on the changed image according to a degree of touch applied to the object. ### Claim 8 (depends on 2) The mobile terminal of claim 2, wherein: the changed image comprises a content list stored in a memory; and the controller is further configured to: sense a selection of at least one content from the content list, and transmit the selected at least one content from the stored content list to at least one of the plurality of counterparts corresponding to the touched at least one of the plurality of images. ### Claim 9 (depends on 1) The mobile terminal of claim 1, wherein the controller is further configured to: control the display unit to display a control image comprising information related to the video call with the plurality of counterparts in a first screen region of the display unit; control the display unit to display the plurality of images received from the plurality of counterparts are displayed in a second screen region of the display unit; sense a direction of movement of a touch input to the control image; and change the control image to a different control image based on the sensed direction of movement of the touch input to the control image. ### Claim 10 (depends on 9) The mobile terminal of claim 9, wherein the controller is further configured to: sense a touch input to the different control image; control a function related to the video call when the touch input to the different control image is sensed within a reference time; and control the display unit to restore the display of the control image, which was displayed prior to display of the different control image, when the touch input to the different control image is not sensed within a reference time. ### Claim 11 (depends on 10) The mobile terminal of claim 10, wherein the information related to the video call comprises at least information regarding a number of speaking times for each of the plurality of counterparts, information regarding a speaking duration for each of the plurality of counterparts, or information regarding a speaking order for each of the plurality of counterparts. ### Claim 12 (depends on 11) The mobile terminal of claim 11, wherein: the different control image comprises an input window configured for receiving information regarding at least a limitation of the number of speaking times for each of the plurality of counterparts, a limitation of the speaking duration for each of the plurality of counterparts, or the speaking order for each of the plurality of counterparts; and the controller is further configured to transmit the information received from the input window to the at least one of each of the plurality of counterparts. ### Claim 13 (depends on 10) The mobile terminal of claim 10, wherein: the different control image comprises thumbnail images corresponding to the plurality of images received from the plurality of counterparts; and the controller is further configured to: sense touch inputs of at least one of the thumbnail images and at least one of the received plurality of images, and group two or more of the plurality of counterparts in response to the sensed touch inputs of the at least one of the thumbnail images and the at least one of the received plurality of images. ### Claim 14 (depends on 13) The mobile terminal of claim 13, wherein the controller is further configured to: group two or more of the received plurality of images corresponding to the grouped two or more of the plurality of counterparts; control the display unit to display the grouped two or more of the received plurality of images; sense a touch input applied to the grouped two or more of the received plurality of images; control a function related to the video call with the grouped two or more of the plurality of counterparts when the touch input applied to the grouped two or more of the received plurality of images is sensed within a reference time; release the grouping of the two or more of the plurality of counterparts when the touch input applied to the grouped two or more of the received plurality of images is not sensed within the reference time. ### Claim 15 (depends on 1) The mobile terminal of claim 1, wherein the controller is further configured to: control at least a size or a three-dimensional depth value of an image received from a speaking counterpart of one of the plurality of counterparts such that the image received from the speaking counterpart is differentiated from other images received from other counterparts of the plurality of counterparts. ### Claim 16 (depends on 15) The mobile terminal of claim 15, wherein the controller is further configured to: gradually change the at least size or three-dimensional depth value based on information regarding a speaking duration of the speaking counterpart. ### Claim 17 (depends on 1) The mobile terminal of claim 1, wherein the controller is further configured to: control at least a size or a three-dimensional depth value of each of the plurality of images based on at least information regarding a number of speaking times of each of the plurality of counterparts, information regarding a speaking duration of each of the plurality of counterparts, or information regarding a speaking order of each of the plurality of counterparts. ### Claim 18 A control method of a mobile terminal including a display unit configured to receive a touch input and display a plurality of images received from a respective plurality of counterparts during a video call, the method comprising: sensing a direction of movement of a touch input to at least one of the received plurality of images; and displaying a changed image based on the direction of movement of the touch input to the at least one of the received plurality of images, wherein the changed image is related to the at least one of the plurality of images. ### Claim 19 (depends on 18) The method of claim 18, further comprising: controlling a function related to a video call with one of the plurality of counterparts when a touch input to the changed image is sensed within a reference time; and controlling the display unit to restore the display of the at least one of the received plurality of images displayed prior to the display of the changed image when the touch input is not sensed within the reference time. ### Claim 20 (depends on 18) The method of claim 18, further comprising: displaying a control image, wherein the control image includes information related to a video call with the plurality of counterparts; sensing a direction of a touch input to the displayed control image; and changing the control image to a different control image based on a sensed direction of the touch input to the control image.