NATURAL HANDWRITING DETECTION ON A TOUCH SURFACE

• US 20170038956A1
• Filed: 08/03/2015
• Published: 02/09/2017
• Est. Priority Date: 08/03/2015
• Status: Active Grant

• Current Assignee: Lenovo PC International Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Yu, Jonathan Jen-Wei, Stewart, Aaron Michael, Skinner, Jeffrey E., Cook, Thomas Ryan
• Granted Patent: US 10,007,421 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: 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
• CPC Class Codes: 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
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06V 30/1423 the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32
• CPC Class Codes: G06V 30/1426 by sensing position defining codes on a support
• CPC Class Codes: G06V 30/32 Digital ink
• CPC Class Codes: G06V 40/28 Recognition of hand or arm movements, e.g. recognition of deaf sign language static hand signs G06V40/113
• CPC Class Codes: G06V 40/33 based only on signature image, e.g. static signature recognition

Abstract

One embodiment provides a method including: detecting, at a touch surface, at least two points of contact of a hand of a user; identifying, based on a configuration of the at least two points of contact, an input provided by the user as handwriting input; and displaying, on a display screen, the handwriting input, wherein the handwriting input is identified as being input at a location relative to the at least two points of contact of the hand of the user. Other aspects are described and claimed.

Claims

1. A method, comprising:

detecting, at a touch surface, at least two points of contact of a hand of a user;

identifying, based on a configuration of the at least two points of contact, an input provided by the user as handwriting input; and

displaying, on a display screen, the handwriting input, wherein the handwriting input is identified as being input at a location relative to the at least two points of contact of the hand of the user.

2. The method of claim 1, wherein the identifying comprises identifying the position of the at least two points of contact relative to each other.

3. The method of claim 1, further comprising determining the at least two points of contact of the hand of the user comprise a contact signature of the user.

4. The method of claim 3, further comprising identifying the user via comparing the contact signature to previously stored contact signatures.

5. The method of claim 1, further comprising displaying, on the touch surface, a graphic depicting a writing utensil at the location of the handwriting input.

6. The method of claim 1, wherein the at least two points of contact comprise at least a part of a palm of the user and at least part of a finger of the user.

7. The method of claim 1, wherein the displaying the handwriting input comprises displaying digital ink at the predetermined distance.

8. The method of claim 1, wherein the at least two points of contact comprise at least a part of a finger of the user and at least part of another finger of the user;

and

wherein the displaying comprises displaying the handwriting input at a predetermined distance from a location where the at least part of a finger and the at least part of another finger touch the touch surface.

9. The method of claim 1, further comprising:

detecting at least one tap at a location of at least one of the at least two points of contact; and

modifying an input type associated with the handwriting input.

10. The method of claim 1, further comprising:

detecting another input independent from the at least two points of contact; and

displaying a graphical user interface allowing the user to modify attributes associated with the handwriting input.

11. An information handling device, comprising:

a touch surface;

a display screen operatively coupled to the touch surface;

a processor operatively coupled to the touch surface and display screen;

a memory device that stores instructions executable by the processor to;

detect, at the touch surface, at least two points of contact of a hand of a user;

identify, based on a configuration of the at least two points of contact, an input provided by the user as handwriting input; and

display, on the display screen, the handwriting input, wherein the handwriting input is identified as being input at a location relative to the at least two points of contact of the hand of the user.

12. The information handling device of claim 11, wherein to identify comprises identifying the position of the at least two points of contact relative to each other.

13. The information handling device of claim 11, wherein the instructions are further executable by the processor to determine the at least two points of contact of the hand of the user comprise a contact signature of the user.

14. The information handling device of claim 11, wherein the instructions are further executable by the processor to display, on the touch surface, a graphic depicting a writing utensil at the location of the handwriting input.

15. The information handling device of claim 11, wherein the at least two points of contact comprise at least a part of a palm of the user and at least part of a finger of the user.

16. The information handling device of claim 11, wherein to display the handwriting input comprises displaying digital ink at the predetermined distance.

17. The information handling device of claim 11, wherein the at least two points of contact comprise at least a part of a finger of the user and at least part of another finger of the user;

and

wherein to display comprises displaying the handwriting input at a predetermined distance from a location where the at least part of a finger and the at least part of another finger touch the touch surface.

18. The information handling device of claim 11, wherein the instructions are further executable by the processor to:

detect at least one tap at a location of at least one of the at least two points of contact; and

modify an input type associated with the handwriting input.

19. The information handling device of claim 11, wherein the instructions are further executable by the processor to:

detect another input independent from the at least two points of contact; and

display a graphical user interface allowing the user to modify attributes associated with the handwriting input.

20. A product, comprising:

a storage device that stores code executable by a processor, the code comprising;

code that detects, at a touch surface, at least two points of contact of a hand of a user;

code that identifies, based on a configuration of the at least two points of contact, an input provided by the user as handwriting input; and

code that displays, on a display screen, the handwriting input, wherein the handwriting input is identified as being input at a location relative to the at least two points of contact of the hand of the user.