# US 10,311,296 B2 · Method of providing handwriting style correction function and electronic device adapted thereto > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,311,296 B2 - Document ID: US10311296B2 - Status: Granted - Kind: B2 - Application number: 15/432,066 - Filed: 2017-02-14 - Published: 2017-08-17 - Granted: 2019-06-04 - Earliest claimed: 2016-02-15 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Wonje Mok - Web page: https://patentgrep.com/patent/US10311296B2 ## CPC - G06F 3/0233: {Character input methods} - G06F 40/171: by use of digital ink - G06V 10/44: Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components - G06V 10/993: {Evaluation of the quality of the acquired pattern} - G06V 30/1423: {the instrument generating sequences of position coordinates corresponding to handwriting (preprocessing or recognising digital ink G06V30/32)} - G06V 30/32: Digital ink - G06V 30/347: {Sampling; Contour coding; Stroke extraction} - G06V 30/373: {using a special pattern or subpattern alphabet} - G09B 11/00: Teaching hand-writing, shorthand, drawing, or painting - G09B 11/04: Guide sheets or plates; Tracing charts (templets for drawing purposes B43L13/20) - G06F 3/04883: for inputting data by handwriting, e.g. gesture or text - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B) ## Abstract A method of providing a handwriting style correction function and an electronic device adapted to the method are provided. The electronic device includes: a touch screen; a processor electrically connected to the touch screen; and a memory electrically connected to the processor. The memory stores instructions which, when executed by the processor, cause the processor to perform operations comprising: displaying at least one reference character on the touch screen; receiving a touch gesture via the touch screen; displaying a track of the received touch gesture on the touch screen; recognizing the track of the touch gesture as at least one input character corresponding to at least one reference character; identifying at least one reference character and at least one input character, as at least one stroke, based on a preset standard; comparing corresponding strokes of at least one reference character with at least one input character, and determining errors by strokes; and summing the errors by strokes of each of at least one reference character, and determining errors by characters. ## Claims ### Claim 1 An electronic device comprising: a touch screen; a processor electrically connected to the touch screen; and a memory electrically connected to the processor, wherein the memory stores instructions which, when executed by the processor, are configured to cause the processor to perform operations comprising: displaying at least one reference character on the touch screen; receiving a touch gesture via the touch screen; displaying a track of the received touch gesture on the touch screen; recognizing the track of the touch gesture as at least one input character corresponding to at least one reference character; identifying at least one reference character and at least one input character, as at least one stroke, based on a preset standard; comparing corresponding strokes of at least one reference character with at least one input character, and determining errors by strokes; and correcting handwriting based on summing the errors by strokes of each of at least one reference character, and determining errors by characters. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the operations further comprise: comparing coordinates of corresponding strokes of at least one reference character and at least one input character, displayed on the touch screen, with each other; and determining errors of strokes. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the operations further comprise: determining a maximum one of the perpendicular distances between corresponding strokes of at least one reference character and at least one input character as an error of the stroke. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein, when corresponding strokes include a curved portion, the to the operations further comprise: determining a maximum one of the perpendicular distances between tangent lines on the corresponding curved strokes as an error of each of the corresponding strokes. ### Claim 5 (depends on 1) The electronic device of claim 1, wherein, when strokes are crossed, the operations further comprise: obtaining partial errors of partial strokes divided with respect to an intersection point of corresponding strokes; summing the partial errors of partial strokes; and determine the summing result as errors by strokes. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the operations further comprise: displaying one or more words including reference characters whose errors by characters are greater than a preset error range on the touch screen. ### Claim 7 (depends on 6) The electronic device of claim 6, wherein the operations further comprise: setting a display frequency of a reference character wherein the higher the errors by characters the higher the display frequency to be displayed on the touch screen. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein the operations further comprise: displaying at least one reference character in font, font size, or thickness which varies based on levels. ### Claim 9 (depends on 6) The electronic device of claim 6, wherein the operations further comprise: analyzing errors by characters for a preset period of time; creating statistical data based on the analysis; and setting a level based on the statistical data. ### Claim 10 (depends on 1) The electronic device of claim 1, wherein the operations further comprise: displaying errors by characters for at least one reference character on the touch screen. ### Claim 11 A method of providing a handwriting style correction function in an electronic device, comprising: displaying at least one reference character on a touch screen; receiving a touch gesture via the touch screen; displaying a track of the received touch gesture on the touch screen; recognizing the track of the touch gesture as at least one input character corresponding to at least one reference character; identifying at least one reference character and at least one input character, as at least one stroke, based on a preset standard; comparing corresponding strokes of at least one reference character with at least one input character, and determining errors by strokes; and correcting handwriting based on summing errors by strokes of each of at least one reference character, and determining errors by characters. ### Claim 12 (depends on 11) The method of claim 11, wherein determining errors by strokes comprises: comparing coordinates of corresponding strokes of at least one reference character and at least one input character, displayed on the touch screen, with each other; and determining errors of strokes. ### Claim 13 (depends on 11) The method of claim 11, wherein determining errors by strokes comprises: determining a maximum one of the perpendicular distances between corresponding strokes of at least one reference character and at least one input character as an error of the stroke. ### Claim 14 (depends on 11) The method of claim 11, wherein determining errors by strokes comprises: when corresponding strokes include a curved portion, determining a maximum one of the perpendicular distances between tangent lines on the corresponding curved strokes as an error of each of the corresponding strokes. ### Claim 15 (depends on 11) The method of claim 11, wherein determining errors by strokes comprises: when strokes are crossed, obtaining partial errors of partial strokes divided with respect to an intersection point of corresponding strokes; summing the partial errors of partial strokes; and determining the summing result as errors by strokes. ### Claim 16 (depends on 11) The method of claim 11, wherein displaying at least one reference character comprises: displaying one or more words including reference characters whose errors by characters are greater than a preset error range on the touch screen. ### Claim 17 (depends on 16) The method of claim 16, further comprising: setting a display frequency of a reference character wherein the higher the errors by characters the higher the display frequency to be displayed on the touch screen. ### Claim 18 (depends on 11) The method of claim 11, wherein displaying at least one reference character comprises: displaying at least one reference character in a font, font size, or thickness which varies according to levels. ### Claim 19 (depends on 18) The method of claim 18, further comprising: analyzing errors by characters for a preset period of time; creating statistical data based on the analysis; and setting the level based on the statistical data. ### Claim 20 A non-transitory computer-readable recording medium storing a software program including instructions, which when executed by a processor, cause the processor to perform operations of a method of providing a handwriting style correction function, the method comprising: displaying at least one reference character on a touch screen; receiving a touch gesture via the touch screen; displaying a track of the received touch gesture on the touch screen; recognizing the track of the touch gesture as at least one input character corresponding to at least one reference character; identifying at least one reference character and at least one input character, as at least one stroke, based on a preset standard; comparing corresponding strokes of at least one reference character with at least one input character, and determining errors by strokes; correcting handwriting based on summing errors by strokes of each of at least one reference character, and determining errors by characters; and displaying the errors by characters for each of at least one reference character on the touch screen.