Secure handwriting input for password fields

Patent metadata

Field	Value
Publication number	US-9672340-B2
Application number	US-201414453940-A
Country	US
Kind code	B2
Filing date	Aug 7, 2014
Priority date	Aug 7, 2014
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

For secure handwriting input for password fields, an apparatus for using a tone indicator to identify language in text recognition is disclosed. The apparatus may include a processor, a handwriting input unit operatively coupled to the processor, a display operatively coupled to the processor, a handwriting element module that identifies a handwriting element from handwriting input, an input replication module that controls the display to present the handwriting element, and a privacy module that controls the display to obscure the handwriting element in response to a predetermined trigger event. Obscuring the handwriting element may include removing the handwriting element, rendering transparent the handwriting element, replacing the handwriting element and an area surrounding the handwriting element with a colored area, and/or replacing the handwriting element with an anonymizing symbol. A method and computer program product also perform the functions of the apparatus.

First claim

What is claimed is:

1. An apparatus comprising:
a processor;
an input device operatively coupled to the processor and configured to receive handwriting input from a user;
a display operatively coupled to the processor;
a memory that stores code executable by the processor to:
identify a handwriting element from the handwriting input received via the input device, wherein the handwriting element comprises an element selected from the group consisting of:
a handwriting stroke, a handwritten character, and a pixel corresponding to the handwriting input;
control the display to present the handwriting element;
recognize a first handwritten character from the handwriting input;
insert a password field, a text character corresponding to the first handwritten character;
control the display to present the text character in the password field;
track a number of handwriting elements subsequently presented;
control display to obscure the handwriting element in response to determining that a predetermined number of subsequent handwriting elements have been presented; and
control the display to obscure one or more previously entered text characters in response to obscuring the handwriting element.

2. The apparatus of claim 1 , wherein the processor further:
receives the handwriting input; and
determines whether the handwriting input is associated with a password field.

3. The apparatus of claim 1 , wherein the processor obscures one or more previously entered text characters in response to inserting a subsequent text character into the password field.

4. The apparatus of claim 1 , wherein the processor determines whether a continuous stroke of the handwriting input comprises more than one handwritten character.

5. The apparatus of claim 1 , wherein the processor further enables a handwriting mode for input into the password field.

6. The apparatus of claim 1 , wherein the processor further initiates a timer in response to controlling the display to present the handwriting element and controls the display to obscure the handwriting element in response to expiration of the timer.

7. The apparatus of claim 1 , wherein the processor controls the display to obscure the handwriting element by performing an action selected from the group consisting of: removing the handwriting element, rendering transparent the handwriting element, replacing the handwriting element and an area surrounding the handwriting element with a colored area, and replacing the handwriting element with an anonymizing symbol.

8. The apparatus of claim 1 , wherein the processor obscures the text character a predetermined period after obscuring the handwriting element corresponding to the text character.

9. A method comprising:
identifying, by use of a processor, a handwriting element based on handwriting input for a password field;
displaying the handwriting element on a display, wherein the handwriting element comprises an element selected from the group consisting of: a handwriting stroke, a handwritten character, and a pixel corresponding to the handwriting input;
recognizing a first handwritten character corresponding to the handwriting input;
inputting, into the password field, a text character corresponding to the first handwritten character;
displaying the text character in the password field;
tracking a number of handwriting elements subsequently displayed;
controlling the display to obscure the handwriting element in response to determining that a predetermined number of subsequent handwriting elements have been presented; and
controlling the display to obscure one or more previously entered text characters in response to obscuring the handwriting element.

10. The method of claim 9 , further comprising obscuring the text character a predetermined period after obscuring the handwriting element corresponding to the text character.

11. The method of claim 9 , wherein controlling the display to obscure the handwriting element comprises controlling the display to perform an action selected from the group consisting of: removing the handwriting element, rendering transparent the handwriting element, replacing the handwriting element and an area surrounding the handwriting element with a colored area, and replacing the handwriting element with an anonymizing symbol.

12. The method of claim 9 , further comprising obscuring the handwriting element after passage of a predetermined amount of time.

13. The method of claim 9 , wherein identifying the handwriting element based on the handwriting input for the password field comprises:
receiving the handwriting input from an input device; and
determining whether the handwriting input is associated with the password field.

14. The method of claim 9 , further comprising obscuring one or more previously entered text characters in response to inputting a subsequent text character.

15. The method of claim 9 , further comprising determining whether a continuous stroke of the handwriting input comprises more than one handwritten character.

16. The method of claim 9 , further comprising enabling a handwriting mode for input into the password field.

17. A program product comprising a non-transitory computer readable storage medium that stores code executable by a processor to perform:
receiving handwriting input for a password field;
identifying a handwriting element based on the handwriting input for a password field, wherein the handwriting element comprises an element selected from the group consisting of: a handwriting stroke, a handwritten character, and a pixel corresponding to the handwriting input;
displaying the handwriting element on a display;
recognizing a first handwritten character corresponding to the handwriting input;
inputting, into the password field, a text character corresponding to the first handwritten character;
displaying the text character in the password field;
tracking a number of handwriting elements subsequently displayed; and
controlling the display to obscure the handwriting element in response to determining that a predetermined number of subsequent handwriting elements have been presented; and
controlling the display to obscure one or more previously entered text characters in response to obscuring the handwriting element.

18. The program product of claim 17 , wherein the code further comprises obscuring the text character a predetermined period after obscuring the handwriting element corresponding to the text character.

19. The program product of claim 17 , wherein the code further comprises:
enabling a handwriting mode for input into the password field;
receiving the handwriting input from an input device; and
determining whether the handwriting input is associated with the password field.

20. The program product of claim 17 , further comprising obscuring one or more previously entered text characters in response to inputting a subsequent text character.

Assignees

• Lenovo Singapore Pte Ltd
• Lenovo Singapore Pte Ltd

Inventors

• Nicholson John Weldon
• Kelso Scott Edwards
• Perrin Steven Richard
• Zhang Jianbang

Classifications

• G06K9/00865

  Physics · mapped topic

• G06K9/222

  Physics · mapped topic

• G06F21/32 Primary

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title

• G06F2221/031

  Protect user input by software means · CPC title

• G06K9/18

  Physics · mapped topic