# US 9,429,755 B2 · Wearable device and method for controlling display of the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,429,755 B2 - Document ID: US9429755B2 - Status: Granted - Kind: B2 - Application number: 14/156,123 - Filed: 2014-01-15 - Published: 2015-06-04 - Granted: 2016-08-30 - Earliest claimed: 2013-11-29 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Yongsin Kim; Doyoung Lee; Hyorim Park - Web page: https://patentgrep.com/patent/US9429755B2 ## CPC - G06F 3/017: {Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883)} - G02B 27/017: {Head mounted} - G02B 27/0172: {characterised by optical features} - G02B 27/0179: {Display position adjusting means not related to the information to be displayed} - G06F 1/163: {Wearable computers, e.g. on a belt} - G06F 3/005: {Input arrangements through a video camera} - G06F 3/013: {Eye tracking input arrangements (G06F3/015 takes precedence)} - G06F 3/0482: Interaction with lists of selectable items, e.g. menus - G06F 3/0484: for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range - G06F 3/14: Digital output to display device {; Cooperation and interconnection of the display device with other functional units} - H04N 13/30: Image reproducers (optical systems for producing stereoscopic or other three-dimensional [3D] effects G02B30/00) - H04N 13/332: Displays for viewing with the aid of special glasses or head-mounted displays [HMD] - H04N 13/344: with head-mounted left-right displays - G02B 2027/014: {comprising information/image processing systems} - G02B 2027/0141: {characterised by the informative content of the display} - G02B 2027/0178: {Eyeglass type (eyeglass details G02C)} - G02B 2027/0187: {slaved to motion of at least a part of the body of the user, e.g. head, eye} - H04N 13/334: using spectral multiplexing - H04N 13/351: for displaying simultaneously - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A wearable device and a method for controlling display of the same are disclosed. Herein, the method for controlling the wearable device includes the steps of, when a contents or channel change in information currently being viewed through an external device occurs, determining whether or not the contents change corresponds to a change performed by a wearer of the wearable device, and, when it is determined that the contents change corresponds to a change performed by a viewer other than the wearer of the wearable device, displaying a content signal that was previously viewed prior to the contents change to the display means. ## Claims ### Claim 1 A method for controlling a wearable device including a display, the method comprising: changing a content currently displayed on an external device from a first content to a second content different from the first content; determining, via a controller, whether the changing the content is performed by a wearer of the wearable device; and displaying the first content on the display of the wearable device to be viewed by the wearer if it is determined that the changing the content is performed by a person other than the wearer of the wearable device, wherein during the displaying the first content on the display, the first content is displayed only on the display of the wearable device, and wherein the determining comprises: detecting a specific motion or gesture of the wearer of the wearable device; verifying whether a content change signal is received; and if the content change signal is received after detecting the specific motion or gesture, determining the changing the content is performed by the wearer of the wearable device. ### Claim 2 (depends on 1) The method of claim 1, wherein the detecting comprises detecting a movement in a body and an arm of the wearer of the wearable device which is equal to or greater than a predetermined movement. ### Claim 3 (depends on 1) The method of claim 1, wherein the displaying the first content includes requesting the external device or a network to send the first content to the wearable device. ### Claim 4 (depends on 3) The method of claim 3, further comprising: if it is determined that the changing the content is performed by the wearer of the wearable device, not displaying the first content at the display of the wearable device in order for the wearer to view the second content on the external device. ### Claim 5 (depends on 1) The method of claim 1, further comprising before the changing the content, displaying the first content on the external device to be viewed by the person and the wearer of the wearable device. ### Claim 6 (depends on 1) The method of claim 1, wherein the person other than the wearer does not wear the wearable device. ### Claim 7 (depends on 1) The method of claim 1, wherein during the displaying the first content on the display, the second content is displayed only on the external device. ### Claim 8 A wearable device, comprising: a communication unit configured to communicate with an external device, the communication unit being configured to receive a content from an external device; a display configured to electronically represent the received content as an image on a screen thereof; a sensor unit configured to detect a motion or gesture of a wearer of the wearable device; and a controller configured to control the communication unit and the display, wherein if the content displayed on the external device is changed from a first content to a second content different from the first content by a person other than the wearer of the wearable device, the controller controls the display to display the first content to be viewed by the wearer, wherein the first content is displayed only on the display of the wearable device, and wherein, the controller is configured to detect a specific motion or gesture of the wearer of the wearable device using the sensor unit, and if a content change signal is received after detecting the specific motion or gesture, determine the content displayed at the external device is changed from the first content to the second content by the person other than the wearer. ### Claim 9 (depends on 8) The wearable device of claim 8, wherein the controller is configured to detect a movement in a body and an arm of the wearer of the wearable device which is equal to or greater than a predetermined movement in order to detect the specific motion or gesture. ### Claim 10 (depends on 8) The wearable device of claim 8, wherein before displaying the first content, the controller controls the communication unit to request the external device or a network to send the first content to the wearable device. ### Claim 11 (depends on 10) The wearable device of claim 10, wherein if the content displayed at the external device is changed from the first content to the second content by the wearer of the wearable device, the controller controls the display not to display the first content in order for the wearer to view the second content on the external device. ### Claim 12 (depends on 8) The wearable device of claim 8, wherein the wearable device comprises a smart glass type device. ### Claim 13 (depends on 8) The wearable device of claim 8, wherein the wearable device comprises a smart watch type device. ### Claim 14 (depends on 8) The wearable device of claim 8, wherein the wearable device comprises a smart lens type device. ### Claim 15 (depends on 8) The wearable device of claim 8, wherein the person other than the wearer does not wear the wearable device. ### Claim 16 (depends on 8) The wearable device of claim 8, wherein the second content is displayed only on the external device. ### Claim 17 A method for controlling a wearable device including a display, the method comprising: changing a content currently displayed on an external device from a first content to a second content different from the first content; after the changing the content at the external device, displaying on the display of the wearable device a menu allowing a wearer of the wearable device to select whether the first content is displayed on the display; if the wearer selects to display the first content on the display using the menu, displaying the first content on the display to be viewed by the wearer; and determining whether the changing content is performed by the wearer of the wearable device, wherein during the displaying the first content on the display, the first content is displayed only on the display of the wearable device, and wherein the determining comprises: detecting a specific motion or gesture of the wearer of the wearable device; verifying whether a content change signal is received; and if the content change signal is received after detecting the specific motion or gesture, determining the changing the content is performed by the wearer of the wearable device. ### Claim 18 (depends on 17) The method of claim 17, wherein the menu is displayed on the display if it is determined that the changing content is performed by a person other than the wearer of the wearable device. ### Claim 19 (depends on 18) The method of claim 18, wherein the detecting comprises detecting a movement in a body and an arm of the wearer of the wearable device which is equal to or greater than a predetermined movement. ### Claim 20 (depends on 18) The method of claim 18, wherein the person other than the wearer does not wear the wearable device. ### Claim 21 (depends on 17) The method of claim 17, wherein during the displaying the first content on the display, the second content is displayed only on the external device.