# US 12,001,671 B2 · Electronic whiteboard system and operation method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,001,671 B2 - Document ID: US12001671B2 - Status: Granted - Kind: B2 - Application number: 17/976,890 - Filed: 2022-10-31 - Published: 2024-05-02 - Granted: 2024-06-04 - Earliest claimed: 2022-10-31 - Assignees: Optoma Corporation - Applicants: Optoma Corporation - Inventors: Wen-Tai Wang - Web page: https://patentgrep.com/patent/US12001671B2 ## CPC - G06F 3/04883: for inputting data by handwriting, e.g. gesture or text - G06T 11/23: using straight lines or curves - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract An electronic whiteboard system and an operation method are provided. The electronic whiteboard system includes an electronic device. The electronic device includes a whiteboard module. The whiteboard module performs a writing operation. The whiteboard module groups a plurality of writing tracks to one grouping object in a track grouping mode of the writing operation according to a first operation command, and generates a writing message of the one grouping object. ## Claims ### Claim 1 An electronic whiteboard system, comprising: an electronic device, comprising: a processor, a display device and a whiteboard module, wherein the processor is configured to execute programs of the whiteboard module to perform a writing operation, and wherein when a track grouping mode of the writing operation is executed by the whiteboard module according to a first operation command, the whiteboard module is configured to group a plurality of writing tracks to one grouping object, the display device is configured to display the one grouping object, wherein a first writing message of the one grouping object has a first object identification, and when the track grouping mode of the writing operation is not executed, the display device is configured to display the plurality of writing tracks having a plurality of second writing messages, wherein each of the plurality of second writing messages has a second object identification, wherein object identification amount of the one grouping object is less than object identification amount of the plurality of writing tracks such that transmission speed of the first writing message of the one grouping object is faster than transmission speed of the plurality of second writing messages of the plurality of writing tracks. ### Claim 2 (depends on 1) The electronic whiteboard system according to claim 1, wherein the plurality of writing tracks correspond to different writing actions. ### Claim 3 (depends on 1) The electronic whiteboard system according to claim 1, wherein the plurality of writing tracks respectively have at least one of different writing starting points and different writing ending points. ### Claim 4 (depends on 1) The electronic whiteboard system according to claim 1, further comprising an input module, wherein the input module is configured to generate the first operation command, the whiteboard module is configured to execute the track grouping mode of the writing operation according to the first operation command. ### Claim 5 (depends on 4) The electronic whiteboard system according to claim 4, wherein the input module is further configured to generate a second operation command, and the whiteboard module finishes the track grouping mode of the writing operation according to the second operation command. ### Claim 6 (depends on 4) The electronic whiteboard system according to claim 4, wherein the input module comprises at least one of a button of a keyboard, a mouse and a stylus. ### Claim 7 (depends on 1) The electronic whiteboard system according to claim 1, wherein the one grouping object corresponds to one text object or one graphic object. ### Claim 8 (depends on 1) The electronic whiteboard system according to claim 1, further comprising an input module, wherein the input module is configured to generate the writing track. ### Claim 9 An operation method of an electronic whiteboard system, comprising: performing a writing operation by a whiteboard module; grouping a plurality of writing tracks to one grouping object according to a first operation command; and generating a first writing message of the one grouping object and displaying the one grouping object when a track grouping mode of the writing operation is executed, wherein the first writing message of the one grouping object has a first object identification; and displaying the plurality of writing tracks when the track grouping mode of the writing operation is not executed, wherein the plurality of writing tracks have a plurality of second writing messages, and each of the plurality of second writing messages has a second object identification, wherein object identification amount of the one grouping object is less than object identification amount of the plurality of writing tracks such that transmission speed of the first writing message of the one grouping object is faster than transmission speed of the plurality of second writing messages of the plurality of writing tracks. ### Claim 10 (depends on 9) The operation method according to claim 9, wherein the plurality of writing tracks correspond to different writing actions. ### Claim 11 (depends on 9) The operation method according to claim 9, wherein the plurality of writing tracks respectively have at least one of different writing starting points and different writing ending points. ### Claim 12 (depends on 9) The operation method according to claim 9, wherein the first operation command is generated from an input module, and the track grouping mode of the writing operation is executed according to the first operation command by the whiteboard module. ### Claim 13 (depends on 12) The operation method according to claim 12, further comprising: generating a second operation command from the input module; and finishing the track grouping mode of the writing operation by the whiteboard module according to the second operation command. ### Claim 14 (depends on 9) The operation method according to claim 9, wherein the one grouping object corresponds to one text object or one graphic object.