# US 2023/0057020 A1 · Meeting interaction system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0057020 A1 - Document ID: US20230057020A1 - Status: Published application - Kind: A1 - Application number: 17/759,702 - Filed: 2021-02-09 - Published: 2023-02-23 - Earliest claimed: 2020-02-09 - Assignees: FlatFrog Laboratories AB - Applicants: FlatFrog Laboratories AB - Inventors: Ola WASSVIK - Web page: https://patentgrep.com/patent/US20230057020A1 ## 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)} - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 3/012: {Head tracking input arrangements} - G06F 3/03545: {Pens or stylus} - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G06F 3/0421: {by interrupting or reflecting a light beam, e.g. optical touch-screen} - G06F 3/0425: {using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected (tracking a projected light spot to determine a position on a display surface G06F3/0386)} - G06F 3/0482: Interaction with lists of selectable items, e.g. menus - G06F 3/14: Digital output to display device {; Cooperation and interconnection of the display device with other functional units} - G06V 40/161: {Detection; Localisation; Normalisation} - G06V 40/28: {Recognition of hand or arm movements, e.g. recognition of deaf sign language (static hand signs G06V40/113)} - G06F 2203/04104: Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger - G06F 2203/04108: Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction - 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) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract Described is an interaction system comprising an imaging device, such as a camera system, configured to image one or more users, wherein the interaction device is configured to determine one of more properties of each user. For example, the interaction system may be used to determine whether the hand of each user is raised or an orientation of each user's face. ## Claims ### Claim 1 An interaction system comprising an imaging device configured to image one or more users, wherein the interaction device is configured to determine one of more properties of each user. ### Claim 2 (depends on 1) The interaction system of claim 1, wherein the interaction system is configured to determine whether the hand of each user is raised. ### Claim 3 (depends on 1) The interaction system of claim 1, wherein the interaction system is configured to determine an orientation of each user's face. ### Claim 4 (depends on 3) The interaction system of claim 3, wherein the interaction system further comprises a display, and the interaction system is configured to determine an orientation of each user's face relative to the display. ### Claim 5 (depends on 3) The interaction system of claim 3, wherein the interaction system further comprises a display and the interaction system is configured to determine an orientation of each user's face relative to one of the one or more users. ### Claim 6 An interaction system comprising an interactive display and a pen identification system configured to identify a pen used for interaction with the interactive display, wherein the interaction system is configured to display one or more properties of the pen on the interactive display whilst the pen is within a predetermined threshold distance of the interactive display but not in contact with the display. ### Claim 7 (depends on 6) The interaction system of claim 6, wherein the properties of the pen comprises a pen colour. ### Claim 8 (depends on 6) The interaction system of claim 6, wherein the properties of the pen comprises a pen brush type. ### Claim 9 (depends on 6) The interaction system of claim 6, wherein the properties of the pen comprises a pen security property. ### Claim 10 An interaction system comprising an interactive display (10) and configured to present a first menu interface to each of one or more users interacting with the interactive display, wherein the interaction system is configured to determine one or more properties of the one or more users (20) and position the corresponding first menu interface on the interactive display accordingly. ### Claim 11 (depends on 10) The interaction system of claim 10, wherein the first menu interface is positioned vertically in dependence on a user's height. ### Claim 12 (depends on 10) The interaction system of claim 10, wherein a first menu interface is positioned horizontally in dependence on a user's horizontal position relative to the interactive display. ### Claim 13 An interaction system comprising an interactive display and processing unit configured to detect a hover event of an object remote from the interactive display for interaction with the interactive display and detect a touch event of the object with the interactive display wherein the interaction system is configured to display first information based on a determined object hover event and a display second information based on a determined object touch event. ### Claim 14 (depends on 13) An interaction system according to claim 13 wherein the interaction system is configured to display third information based on the determined object hover event and on the determined object touch event. ### Claim 15 (depends on 14) An interaction system according to claim 14 wherein the interaction system is configured to display the third information when the controller determines that the determined object hover event and the determined object touch event occur within a predetermined time period.