# US 10,319,345 B2 · Portable terminal and method for partially obfuscating an object displayed thereon > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,319,345 B2 - Document ID: US10319345B2 - Status: Granted - Kind: B2 - Application number: 14/259,740 - Filed: 2014-04-23 - Published: 2014-11-06 - Granted: 2019-06-11 - Earliest claimed: 2013-05-02 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Ji-Hoon Kim; Won-Suk Chang; Do-Hyeon Kim; Sang-Ho Kim; Hee-Bum Ahn; Seong-Taek Hwang; Dong-Wook Kwon - Web page: https://patentgrep.com/patent/US10319345B2 ## CPC - G09G 5/30: Control of display attribute - G06F 3/0488: using a touch-screen or digitiser, e.g. input of commands through traced gestures - G06F 21/50: Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems - G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} - G09G 5/37: Details of the operation on graphic patterns (G09G5/38 takes precedence) - G06F 2221/032: Protect output to user by software means - G06F 2221/2105: Dual mode as a secondary aspect - G09G 2320/066: for control of contrast - G09G 2320/0686: with two or more screen areas displaying information with different brightness or colours - G09G 2358/00: Arrangements for display data security - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A portable terminal and a method for protecting a displayed object on a screen of a portable terminal are provided. The method includes detecting an input on the screen; forming an area corresponding to a position of the detected input; and displaying a part of an object corresponding to the formed area differently from another part of the object in an area outside of the formed area. ## Claims ### Claim 1 A method for protecting an object displayed on a touch screen of a portable terminal, the method comprising: activating a security mode based on analyzing an ambient situation around the portable terminal; displaying a trace based on a movement of a touch input by an input device on the touch screen while the security mode is activated; controlling the display of the trace such that the displayed trace sequentially disappears, wherein the trace includes a plurality of segments in which each of the plurality of segments sequentially disappears one at a time; identifying a hovering input by the input device on the trace which is disappearing sequentially; identifying a size of an area having a portion of the trace based on a position at which the hovering input is identified; and re-displaying the portion of the trace corresponding to the identified hovering input within the area having the identified size. ### Claim 2 (depends on 1) The method of claim 1, further comprising controlling an attribute of the area having the identified size. ### Claim 3 (depends on 2) The method of claim 2, wherein the attribute includes at least one of a size, a color, a brightness, or a gradation effect. ### Claim 4 (depends on 2) The method of claim 2, wherein the attribute of the area is differently controlled based on the identified position or a distance between the input device performing the hovering input and the touch screen. ### Claim 5 (depends on 1) The method of claim 1, further comprising, when the hovering input is identified while the object is displayed, displaying the area more translucent than an area outside of the area having the identified size. ### Claim 6 (depends on 1) The method of claim 1, further comprising, when the hovering input is identified while a picture is displayed, controlling a color of picture displayed within the area differently from a color of an area outside of the area. ### Claim 7 (depends on 1) The method of claim 1, wherein the area is moved based on a movement of the hovering input. ### Claim 8 (depends on 1) The method of claim 1, wherein the area has a radius based on the hovering input, and wherein, when the hovering input is identified, a size of the area is variably controlled based on a distance between a position at which the hovering input is identified and the touch screen. ### Claim 9 (depends on 1) The method of claim 1, further comprising, identifying the hovering input while the object is displayed on the touch screen, and applying an attribute of the object corresponding to the area identified based on the identified hovering input differently from an attribute of an object corresponding to an area outside of the identified area. ### Claim 10 (depends on 1) The method of claim 1, wherein the ambient situation includes at least one of a current position of the portable terminal, a time, ambient brightness, or ambient noise around the portable terminal. ### Claim 11 A portable terminal for protecting an object displayed on a touch screen of the portable terminal, the portable terminal comprising: a touch screen; and at least one processor configured to: activate a security mode based on analyzing an ambient situation around the portable terminal, control the touch screen to display a trace based on a movement of a touch input by an input device on the touch screen while the security mode is activated, control the touch screen to control the display of the trace such that the displayed trace sequentially disappears, wherein the trace includes a plurality of segments in which each of the plurality of segments sequentially disappears one at a time, identify a hovering input by the input device on the trace which is disappearing sequentially, identify a size of an area having a portion of the trace based on a position at which the hovering input is identified, control the touch screen to re-display the portion of the trace corresponding to the identified hovering input within the area having the identified size. ### Claim 12 (depends on 11) The portable terminal of claim 11, wherein the at least one processor is further configured to control an attribute of the area having the identified size. ### Claim 13 (depends on 11) The portable terminal of claim 11, wherein the at least one processor is further configured to determine a size of the area based on a distance between the input device performing the hovering input and the touch screen. ### Claim 14 (depends on 11) The portable terminal of claim 11, wherein, when the hovering input is identified while the object is displayed, the at least one processor is further configured to display the identified area more translucent than an area outside of the identified area. ### Claim 15 (depends on 11) The portable terminal of claim 11, wherein, when the hovering input is identified while a picture is displayed on the touch screen, the at least one processor is further configured to control a color of the picture displayed within the area differently from a color of an area outside of the area. ### Claim 16 A non-transitory computer-readable storage medium for storing instructions for a processor to protect an object displayed on a touch screen, which when executed by the processor, performs the instructions including: activating a security mode based on analyzing an ambient situation around the portable terminal; displaying a trace based on a movement of a touch input by an input device on the touch screen while the security mode is activated; controlling the display of the trace such that the displayed trace sequentially disappears, wherein the trace includes a plurality of segments in which each of the plurality of segments sequentially disappears one at a time; identifying a hovering input by the input device on the trace which is disappearing sequentially; identifying a size of an area having a portion of the trace based on a position at which the hovering input is identified; re-displaying the portion of the trace corresponding to the identified hovering input within the area having the identified size. ### Claim 17 (depends on 1) The method of claim 1, wherein a peripheral part of the re-displayed portion of the trace is more transparent than a central part of the re-displayed portion of the trace.