# US 10,871,898 B2 · Display apparatus for providing preview UI and method of controlling display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,871,898 B2 - Document ID: US10871898B2 - Status: Granted - Kind: B2 - Application number: 16/118,035 - Filed: 2018-08-30 - Published: 2019-02-28 - Granted: 2020-12-22 - Earliest claimed: 2017-08-31 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Ji-yeon Lee; Eun-nim Cho; Sang-jin Han - Web page: https://patentgrep.com/patent/US10871898B2 ## CPC - G06F 3/04886: by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus - G06F 3/0482: Interaction with lists of selectable items, e.g. menus - G06F 3/0483: Interaction with page-structured environments, e.g. book metaphor - G06F 3/04842: Selection of displayed objects or displayed text elements (G06F3/0482 takes precedence) - G06F 3/04845: for image manipulation, e.g. dragging, rotation, expansion or change of colour - G06F 3/04883: for inputting data by handwriting, e.g. gesture or text - G06F 2203/04806: Zoom, i.e. interaction techniques or interactors for controlling the zooming operation - G06F 2203/04808: Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A display apparatus and a method of controlling the display apparatus are provided. The method includes displaying a first page of a plurality of pages, based on a first touch input being sensed while the first page is displayed, displaying a preview user interface (UI) including a plurality of preview pages respectively corresponding to the plurality of pages, and based on a second touch input being sensed on a preview page among the plurality of preview pages, revising a content included in the preview page on which the second touch input is sensed, according to the second touch input. ## Claims ### Claim 1 A method of controlling a display apparatus, the method comprising: displaying a first page of a plurality of pages; based on a first touch input being sensed while the first page is displayed, displaying the first page and a preview user interface comprising a plurality of preview pages respectively corresponding to the plurality of pages including the first page, wherein each of the plurality of preview pages is smaller than the first page; and based on a second touch input being sensed on a first preview page corresponding to the first page among the plurality of preview pages while the first page and the plurality of preview pages are displayed, revising a content of the first page corresponding to the first preview page on which the second touch input is sensed by inserting writing content into the first page, according to the second touch input. ### Claim 2 (depends on 1) The method of claim 1, wherein the revising comprises, based on the second touch input being sensed on the first preview page corresponding to the first page while the first page and the plurality of preview pages are displayed, simultaneously revising a content of the first preview page and the content of the first page according to the second touch input. ### Claim 3 (depends on 1) The method of claim 1, wherein the revising comprises: based on the second touch input being sensed on a second preview page corresponding to a second page among the plurality of pages, revising a content of the second preview page according to the second touch input, wherein the second page is not displayed when the second touch input is sensed on the second preview page; and storing the second page comprising the revised content of the second preview page. ### Claim 4 (depends on 3) The method of claim 3, further comprising: based on a third touch input for changing to the second page being sensed, displaying the second page comprising the revised content of the second preview page. ### Claim 5 (depends on 1) The method of claim 1, further comprising: based on the second touch input being a pinch-out touch being sensed on the first preview page among the plurality of preview pages, zooming in the first page; and based on the second touch input being a pinch-in touch being sensed on the first preview page, zooming out the first page. ### Claim 6 (depends on 1) The method of claim 1, wherein the displaying of the preview user interface comprises displaying an editing tool user interface near the preview user interface, wherein the revising comprises, based on the second touch input being sensed on the first preview page among the plurality of preview pages after an icon in the editing tool user interface is selected, revising a content of the first preview page on which the second touch input is sensed, according to an editing function corresponding to the selected icon. ### Claim 7 (depends on 1) The method of claim 1, further comprising: based on a third touch input for revising a content displayed on the first page, being sensed, revising the content displayed on the first page and simultaneously revising a content displayed on the first preview page corresponding to the first page. ### Claim 8 (depends on 1) The method of claim 1, further comprising: based on a third touch input for touching and dragging a point of the preview user interface for a preset time, being sensed, dragging the preview user interface according to a direction of the dragging. ### Claim 9 (depends on 1) The method of claim 1, wherein the displaying of the preview user interface comprises, based on the first touch input for selecting an icon for generating the preview user interface from an editing tool UI displayed on the first page, being sensed, displaying the preview user interface. ### Claim 10 (depends on 1) The method of claim 1, wherein the revising comprises, based on the second touch input being sensed on the first preview page among the plurality of preview pages simultaneously with a third touch input being sensed on the first page, revising the content of the first page and a content of the first preview page corresponding to the first page according to the third touch input, while revising the content of the first preview page on which the second touch input is sensed, according to the second touch input. ### Claim 11 A display apparatus comprising: a display; a touch input interface configured to sense a touch input; and a processor configured to: control the display to display a first pages; based on a first touch input being sensed through the touch input interface while the first page is displayed, control the display to display the first page and a preview user interface comprising a plurality of preview pages respectively corresponding to the plurality of pages including the first page, wherein each of the plurality of preview pages is smaller than the first page; and based on a second touch input being sensed on a first preview page corresponding to the first page among the plurality of preview pages through the touch input interface while the first page and the plurality of preview pages are displayed, control the display to revise a content of the first page corresponding to the first preview page on which the second touch input is sensed by inserting writing content into the first page, according to the second touch input. ### Claim 12 (depends on 11) The display apparatus of claim 11, wherein the processor is further configured to, based on the second touch input being sensed on the first preview page corresponding to the first page while the first page and the plurality of preview pages are displayed, control the display to simultaneously revise a content of the first preview page and a content of the first page according to the second touch input. ### Claim 13 (depends on 11) The display apparatus of claim 11, further comprising a memory, wherein the processor is further configured to: based on the second touch input being sensed on a second preview page corresponding to a second page among the plurality of pages, control the display to revise a content of the second preview page according to the second touch input, wherein the second page is not displayed when the second touch input is sensed on the second preview page; and store the second page comprising the revised content of the second preview page in the memory. ### Claim 14 (depends on 13) The display apparatus of claim 13, wherein the processor is further configured to, based on a third touch input for changing to the second page, being sensed through the touch input interface, control the display to display the second page comprising the revised content of the second preview page. ### Claim 15 (depends on 11) The display apparatus of claim 11, wherein the processor is further configured to control the display to zoom in the first page based on a pinch-out touch being sensed on the first preview page, among the plurality of preview pages, and zoom out the first page based on a pinch-in touch being sensed on the first preview page. ### Claim 16 (depends on 11) The display apparatus of claim 11, wherein an editing tool user interface is displayed near the preview user interface, and wherein the processor is further configured to, based on the second touch input being sensed on the first preview page among the plurality of preview pages after an icon in the editing tool user interface is selected, control the display to revise a content of the first preview page on which the second touch input is sensed, according to an editing function corresponding to the selected icon. ### Claim 17 (depends on 11) The display apparatus of claim 11, wherein the processor is further configured to, based on a third touch input for revising a content displayed on the first page, being sensed through the touch input interface, control the display to simultaneously revise the content displayed on the first page and a content displayed on the first preview page corresponding to the first page. ### Claim 18 (depends on 11) The display apparatus of claim 11, wherein the processor is further configured to, based on a third touch input for touching and dragging a point of the preview user interface for a preset time, being sensed through the touch input interface, control the display to drag the preview user interface according to a direction of the dragging. ### Claim 19 (depends on 11) The display apparatus of claim 11, wherein the processor is further configured to, based on a third touch input for selecting an icon for generating the preview user interface from an editing tool user interface displayed on the first page, being sensed through the touch input interface, control the display to display the preview user interface. ### Claim 20 (depends on 11) The display apparatus of claim 11, wherein the processor is further configured to, based on the second touch input being sensed on the first preview page among the plurality of preview pages simultaneously with a third touch input being sensed on the first page, control the display to revise the content of the first page and a content of the first preview page corresponding to the first page according to the third touch input, while revising the content of the first preview page on which the touch input is sensed, according to the second touch input.