Electronic device and operation method therefor

Patent metadata

Field	Value
Publication number	US-2023350565-A1
Application number	US-202318338848-A
Country	US
Kind code	A1
Filing date	Jun 21, 2023
Priority date	Dec 22, 2020
Publication date	Nov 2, 2023
Grant date	—

Abstract

According to various example embodiments, an electronic device and an operation method thereof are disclosed. The disclosed electronic device includes: a display; a touch sensitive panel; a memory storing one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to: receive a touch input through the touch sensitive panel, detect a change of a size of the touch input received for a specified time, identify a brush stroke corresponding to the detected change of the size of the touch input among a plurality of brush strokes, obtain trajectory information corresponding to the touch input from a database corresponding to the identified brush stroke, and process the touch input according to the obtained trajectory information corresponding to the touch input and output the processed touch input on the display.

First claim

What is claimed is:

1 . An electronic device comprising:
a display; a touch sensitive panel; a memory storing one or more instructions; and a processor configured to execute the one or more instructions stored in the memory to: receive a touch input through the touch sensitive panel; detect a change of a size of the touch input received for a specified time; identify a brush stroke corresponding to the detected change of the size of the touch input among a plurality of brush strokes; obtain trajectory information corresponding to the touch input from a database corresponding to the identified brush stroke; and process the touch input according to the obtained trajectory information corresponding to the touch input and output the processed touch input on the display.

2 . The electronic device of claim 1 , wherein the processor is further configured to execute the one or more instructions to: detect the change of the size of the touch input based on a difference between a size of a touch event detected at a first time point and a size of a touch event detected at a second time point among a plurality of touch events of the touch input.

3 . The electronic device of claim 1 , wherein the processor is further configured to execute the one or more instructions to:
identify the brush stroke as a first brush stroke based on a change of a size of an area corresponding to the touch input exceeding a specified threshold value; and identify the brush stroke as a second brush stroke based on the change of the size of the area corresponding to the touch input not exceeding the specified threshold value.

4 . The electronic device of claim 1 , wherein the memory comprises a plurality of databases respectively corresponding to the plurality of brush strokes, and
each of the plurality of databases respectively corresponding to the plurality of brush strokes comprises information about a plurality of trajectories obtained by performing a touch input according to a corresponding brush stroke using an active stylus.

5 . The electronic device of claim 4 , wherein the trajectory information corresponding to the plurality of brush strokes comprises trajectory information corresponding to a first brush stroke and trajectory information corresponding to a second brush stroke,
the trajectory information corresponding to the first brush stroke comprises a plurality of trajectory information obtained by performing a plurality of touch inputs according to the first brush stroke, each of the plurality of trajectory information comprising information about a plurality of touch events included in a touch input representing each trajectory, and the trajectory information corresponding to the second brush stroke comprises a plurality of trajectory information obtained by performing a plurality of touch inputs according to the second brush stroke, each of the plurality of trajectory information comprising information about a plurality of touch events included in a touch input representing each trajectory.

6 . The electronic device of claim 5 , wherein the information about the plurality of touch events comprises at least one of an occurrence location of the touch event, an area size of the touch event, an occurrence time of the touch event, a position vector, a velocity vector, an altitude angle, and an azimuth angle.

7 . The electronic device of claim 6 , wherein the processor is further configured to execute the one or more instructions to:
based on the received touch input being identified as the first brush stroke, obtain a database corresponding to the first brush stroke; search for a candidate touch event from the database corresponding to the first brush stroke using a position vector and a velocity vector of each of the touch events included in the touch input, and obtain altitude or azimuth angle information from information about the found candidate touch event; and process the touch input using the altitude or azimuth angle information.

8 . The electronic device of claim 7 , wherein the processor is further configured to execute the one or more instructions to: identify, as the candidate touch event, a touch event in which a difference between a position vector and a velocity vector of each of the touch events included in the touch input and a position vector and a velocity vector of the touch events in the database corresponding to the first brush stroke is less than a threshold value.

9 . The electronic device of claim 6 , wherein the processor is further configured to execute the one or more instructions to:
based on the received touch input being identified as the first brush stroke, obtain a database corresponding to the first brush stroke; search for a candidate touch event from the database corresponding to the first brush stroke using a position change or a change of the size of each of the touch events included in the touch input, and obtain altitude or azimuth angle information from information about the found candidate touch event; and process the touch input using the altitude or azimuth angle information.

10 . A method of operating an electronic device including a display and a touch sensitive panel, the operation method comprising:
receiving a touch input through the touch sensitive panel; detecting a change of a size of the touch input received for a specified time; identifying a brush stroke corresponding to the detected change of the size of the touch input among a plurality of brush strokes; obtaining trajectory information corresponding to the touch input from a database corresponding to the identified brush stroke; and processing the touch input according to the obtained trajectory information corresponding to the touch input and outputting the processed touch input on the display.

11 . The method of claim 10 , further comprising detecting the change of the size of the touch input based on a difference between a size of a touch event detected at a first time point and a size of a touch event detected at a second time point among a plurality of touch events of the touch input.

12 . The method of claim 10 , further comprising identifying the brush stroke as a first brush stroke based on the change of the size of the touch input exceeding a threshold value, and identifying the brush stroke as a second brush stroke based on the change of the size of the touch input not exceeding the specified threshold value.

13 . The method of claim 10 , wherein the electronic device comprises a plurality of databases respectively corresponding to the plurality of brush strokes, and
each of the plurality of databases respectively corresponding to the plurality of brush strokes comprises information about a plurality of trajectories obtained by performing a touch input according to a corresponding brush stroke using an active stylus.

14 . The method of claim 13 , wherein the trajectory information corresponding to the plurality of brush strokes comprises trajectory information corresponding to a first brush stroke and trajectory information corresponding to a second brush stroke,
the trajectory information corresponding to the first brush stroke comprises a plurality of trajectory information obtained by performing a plurality of touch inputs according to the first brush stroke, each of the plurality of trajectory information comprising information about a plurality of touch events included in a touch input representing each trajectory, and the trajectory information corresponding to the second brush stroke comprises a plurality of trajectory information obtained by performing a plurality of touch inputs

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jung Minhyo
• Lee Seongoh
• Kwak Youngmin

Classifications

• G06F3/04883 Primary

  for inputting data by handwriting, e.g. gesture or text · CPC title

• G06F3/0416

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F3/04162 Primary

  for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware · CPC title

• G06F3/03545

  Pens or stylus · CPC title

• G06F3/0383

  Signal control means within the pointing device · CPC title