# US 8,571,521 B2 · Mobile terminal and controlling method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,571,521 B2 - Document ID: US8571521B2 - Status: Granted - Kind: B2 - Application number: 13/081,368 - Filed: 2011-04-06 - Published: 2012-02-23 - Granted: 2013-10-29 - Earliest claimed: 2010-08-18 - Assignees: LG Electronics Inc. - Applicants: Minjoo Kim; Isu Byun; Jiwoon Kim; Sanghyuck Lee; Inyong Hwang - Inventors: Minjoo Kim; Isu Byun; Jiwoon Kim; Sanghyuck Lee; Inyong Hwang - Web page: https://patentgrep.com/patent/US8571521B2 ## CPC - H04M 1/72469: for operating the device by selecting functions from two or more displayed items, e.g. menus or icons - G06F 3/04883: for inputting data by handwriting, e.g. gesture or text - H04M 1/724634: {With partially locked states, e.g. when some telephonic functional locked states or applications remain accessible in the locked states} - H04W 12/06: Authentication - H04W 12/08: Access security - H04W 88/02: Terminal devices - 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) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method of controlling a mobile terminal by displaying simultaneously a plurality of menu icons comprising at least one restricted use icon and at least one non-restricted use icon; performing a user authentication procedure responsive to user selection of the at least one restricted use icon; and unlocking the mobile terminal responsive to user selection of the at least one non-restricted use icon or responsive to completion of the user authentication procedure. ## Claims ### Claim 1 A method of controlling a mobile terminal, the method comprising: displaying a restricted user graphic and a non-restricted user graphic together on a lock screen; performing a user authentication procedure responsive to user touch-dragging of the restricted user graphic on the lock screen; unlocking the mobile terminal responsive to completion of the user authentication procedure; and switching the lock screen directly to a first execution image of a first function associated with the non-restricted user graphic without performing the user authentication procedure, the switching responsive to user touch-dragging of the non-restricted user graphic on the lock screen. ### Claim 2 (depends on 1) The method of claim 1, wherein: the lock screen is displayed to indicate the mobile terminal is in a locked state, and the restricted user graphic is displayed differently from the non-restricted user graphic. ### Claim 3 (depends on 1) The method of claim 1, wherein performing the user authentication procedure comprises: comparing a user input with a predetermined input; and authenticating a user when the user input matches the predetermined input. ### Claim 4 (depends on 3) The method of claim 3, further comprising: receiving the user input via a user authentication display. ### Claim 5 (depends on 3) The method of claim 3, further comprising: detecting the user input in a particular path on the lock screen of the mobile terminal. ### Claim 6 (depends on 3) The method of claim 3, further comprising: detecting the user input at a specific one of the restricted user graphic and the non-restricted user graphic at a first location of the lock screen, the user input comprising: moving the specific one of the restricted user graphic and the non-restricted user graphic from the first location to a second location on the lock screen according to the detected user input in a specific direction. ### Claim 7 (depends on 3) The method of claim 3, further comprising: displaying a user authentication display to display the user input; detecting at least one key positioned separate from the user authentication display being manipulated to receive the user input. ### Claim 8 (depends on 3) The method of claim 3, further comprising: displaying a user authentication display comprising a plurality of keys to display the user input; detecting at least one of the plurality of keys being manipulated to receive the user input; and displaying the user input via the user authentication display. ### Claim 9 (depends on 1) The method of claim 1, further comprising: determining whether or not to perform the user authentication procedure based on which one of the restricted user graphic and the non-restricted user graphic is touch-dragged on the lock screen. ### Claim 10 (depends on 1) The method of claim 1, further comprising: displaying the restricted user graphic in an allocated portion separate from the non-restricted user graphic on the lock screen of the mobile terminal. ### Claim 11 (depends on 1) The method of claim 1, further comprising: detecting a touch input at a specific one of the restricted user graphic and the non-restricted user graphic on the lock screen of the mobile terminal; and moving the specific one of the restricted user graphic and the non-restricted user graphic to a predetermined position on the lock screen according to the detected touch input, wherein the predetermined position is common to both the restricted user graphic and the non-restricted user graphic. ### Claim 12 (depends on 1) The method of claim 1, further comprising: detecting a touch input at a specific one of the restricted user graphic and the non-restricted user graphic on the lock screen of the mobile terminal; and moving the specific one of the restricted user graphic and the non-restricted user graphic along a predetermined path to a predetermined position on the lock screen according to the detected touch input. ### Claim 13 (depends on 1) The method of claim 1, further comprising: detecting a first touch input at one of the restricted user graphic and the non-restricted user graphic on the lock screen of the mobile terminal; moving the one of the restricted user graphic and the non-restricted user graphic to a first predetermined position on the lock screen according to the detected first touch input; detecting a second touch input at the other of the restricted user graphic and the non-restricted user graphic on the lock screen; and moving the other of the restricted user graphic and the non-restricted user graphic along a predetermined path to a second predetermined position on the lock screen according to the detected second touch input. ### Claim 14 (depends on 1) The method of claim 1, wherein unlocking the mobile terminal comprises switching a user authentication display of the user authentication procedure directly to a second execution image of a second function associated with the restricted user graphic. ### Claim 15 (depends on 1) The method of claim 1, wherein at least the restricted user graphic or the non-restricted user graphic comprises at least a function icon, application icon or menu icon. ### Claim 16 (depends on 1) The method of claim 1, further comprising: displaying an unlocked screen responsive to the unlocking the mobile terminal; and displaying the non-restricted user graphic on the unlocked screen, wherein the non-restricted user graphic on the unlocked screen is associated with the same first function as the non-restricted user graphic on the locked screen. ### Claim 17 A method of controlling a mobile terminal, the method comprising: displaying a lock screen to indicate the mobile terminal is in a locked state; displaying a restricted user graphic and a non-restricted user graphic on the lock screen; performing a user authentication procedure to authenticate a user responsive to user touch-dragging of the restricted user graphic on the lock screen such that the lock screen is switched to a user authentication display; and skipping the user authentication procedure responsive to user touch-dragging of the non-restricted user graphic on the lock screen such that the lock screen is switched directly to a first execution image of a first function associated with the non-restricted user graphic without displaying the user authentication display. ### Claim 18 (depends on 17) The method of claim 17, further comprising switching the user authentication display directly to a second execution image of a second function associated with the restricted user graphic responsive to completion of the user authentication procedure. ### Claim 19 A mobile terminal, comprising: a touchscreen configured to display information; and a controller configured to: display a restricted user graphic and a non-restricted user graphic together on a lock screen on the touchscreen; perform a user authentication procedure responsive to user touch-dragging of the restricted user graphic; unlock the mobile terminal responsive to completion of the user authentication procedure; and switch the lock screen directly to a first execution of a first function associated with the non-restricted user graphic without performing the user authentication procedure, the switch responsive to user touch-dragging of the non-restricted user graphic on the lock screen. ### Claim 20 (depends on 19) The mobile terminal of claim 19, wherein the controller is further configured to: provide a virtual region hidden from view on the lock screen such that a touch input in a particular direction on the lock screen causes the virtual region to appear on the touchscreen. ### Claim 21 (depends on 20) The mobile terminal of claim 20, wherein the controller is further configured to: display the restricted user graphic in the virtual region such that the touch input causes the restricted user graphic to appear on the touchscreen. ### Claim 22 (depends on 19) The mobile terminal of claim 19, wherein the controller is further configured to: determine whether to perform the user authentication procedure based on which of the restricted user graphic and the non-restricted user graphic is touch-dragged on the lock screen. ### Claim 23 (depends on 22) The mobile terminal of claim 22, further comprising: at least one key positioned separately from the touchscreen for receiving a user input with regard to the user authentication procedure. ### Claim 24 (depends on 19) The mobile terminal of claim 19, wherein the controller is further configured to: detect a touch input at a specific one of the restricted user graphic and the non-restricted user graphic on the lock screen; and move the specific one of the restricted user graphic and the non-restricted user graphic to a predetermined position on the lock screen according to the detected touch input, wherein the predetermined position is common to both the restricted user graphic and the non-restricted user graphic. ### Claim 25 (depends on 19) The mobile terminal of claim 19, wherein the controller is further configured to: detect a touch input at a specific one of the restricted user graphic and the non-restricted user graphic on the lock screen; and move the specific one of the restricted specific user graphic and the non-restricted user graphic along a predetermined path to a predetermined position on the lock screen according to the detected touch input. ### Claim 26 (depends on 19) The mobile terminal of claim 19, wherein the controller is further configured to unlock the mobile terminal such that a user authentication display of the user authentication procedure is switched directly to a second execution image of a second function associated with the restricted user graphic. ### Claim 27 (depends on 19) The mobile terminal of claim 19, wherein at least the restricted user graphic or the non-restricted user graphic comprises at least a function icon, application icon or menu icon. ### Claim 28 (depends on 19) The mobile terminal of claim 19, wherein the controller is further configured to: display an unlocked screen responsive to the unlocking of the mobile terminal; and display the non-restricted user graphic on the unlocked screen, wherein the non-restricted user graphic on the unlocked screen is associated with the same first function as the non-restricted user graphic on the locked screen. ### Claim 29 A mobile terminal, comprising: a touchscreen configured to display information; and a controller configured to: display a lock screen on the touchscreen to indicate the mobile terminal is in a locked state; display a restricted user graphic and a non-restricted user graphic on the lock screen; perform a user authentication procedure to authenticate a user responsive to user touch-dragging of the restricted user graphic on the lock screen such that the lock screen is switched to a user authentication display; and skip the user authentication procedure responsive to user touch-dragging of the non-restricted user graphic on the lock screen such that the lock screen is switched directly to a first execution image of a first function associated with the non-restricted user graphic without displaying the user authentication display. ### Claim 30 (depends on 29) The mobile terminal of claim 29, wherein the controller is further configured to switch the user authentication display directly to a second execution image of a second function associated with the restricted user graphic responsive to completion of the user authentication procedure. ### Claim 31 A method of controlling a mobile terminal, the method comprising: displaying a restricted user graphic and a non-restricted user graphic together on a lock screen; receiving a user command of touch-dragging the restricted user graphic or the non-restricted user graphic on the lock screen; performing a user authentication procedure to authenticate the user if the restricted user graphic is touch-dragged on the lock screen; and switching the lock screen directly to an execution image of a specific function associated with the non-restricted user graphic without performing the user authentication procedure if the non-restricted user graphic is touch-dragged on the lock screen. ### Claim 32 (depends on 31) The method of claim 31, wherein performing the user authentication procedure comprises changing the lock screen into a user authentication display. ### Claim 33 (depends on 31) The method of claim 31, further comprising: moving the touch-dragged restricted user graphic or non-restricted user graphic to a predetermined position on the lock screen, wherein the predetermined position is common to both of the restricted user graphic and the non-restricted user graphic. ### Claim 34 A mobile terminal, comprising: a touchscreen; and a controller configured to: display a restricted user graphic and a non-restricted user graphic together on a lock screen on the touchscreen; receive a user command of touch-dragging the restricted user graphic or the non-restricted user graphic on the lock screen; perform a user authentication procedure to authenticate a user if the restricted user graphic is touch-dragged on the lock screen; and switch the lock screen directly to an execution image of a specific function associated with the non-restricted user graphic without performing the user authentication procedure if the non-restricted user graphic is touch-dragged on the lock screen. ### Claim 35 (depends on 34) The mobile terminal of claim 34, wherein the controller is further configured to change the lock screen into a user authentication display for the user authentication procedure. ### Claim 36 (depends on 34) The mobile terminal of claim 34, wherein the controller is further configured to move the touch-dragged restricted user graphic or non-restricted user graphic to a predetermined position on the lock screen, wherein the predetermined position is common to both of the restricted user graphic and the non-restricted user graphic.