Display securing method and apparatus

Patent metadata

Field	Value
Publication number	US-9871664-B2
Application number	US-201514681162-A
Country	US
Kind code	B2
Filing date	Apr 8, 2015
Priority date	Oct 20, 2014
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

A security apparatus includes an encryptor configured to visually encrypt a target object, and a decryptor configured to decrypt an area corresponding to a decryption gesture in the encrypted target object, during a predetermined period of time.

First claim

What is claimed is:

1. A security apparatus comprising:
an encryptor configured to
set a mode of the security apparatus to be an encryption mode, in which encryption gestures are recognized, or a normal mode, in which encryption gestures are not recognized,
receive, from a user, an encryption gesture directed to a target object,
determine whether the security apparatus is in the encryption mode or the normal mode,
upon determining that the security apparatus is in the normal mode, ignore the encryption gesture, and
upon determining that the security apparatus is in the encryption mode, visually encrypt the target object according to the encryption gesture; and

a decryptor configured to
detect an input decryption gesture indicating an area in the encrypted target object, and
decrypt the area for a length of time, wherein the length of time is based on a speed of the decryption gesture,

wherein the encryptor is further configured to, upon expiration of the length of time, re-encrypt the decrypted area.

2. The apparatus of claim 1 , wherein the encryptor is configured to:
visually encrypt an area corresponding to the encryption gesture in the target object.

3. The apparatus of claim 1 , wherein the encryptor is configured to:
recognize, as the encryption gesture, any one or any combination of a touch gesture to an area in the target object, a sliding gesture to an area in the target object, and a drag gesture for setting a range of an area in the target object based on two touch gestures.

4. The apparatus of claim 3 , wherein the encryptor is configured to:
recognize, as the encryption gesture, the drag gesture, the sliding gesture, or the touch gesture simultaneously input with a touch gesture to a predetermined area on a display.

5. The apparatus of claim 1 , wherein the encryptor is configured to:
mix a noise object to the target object to visually encrypt the target object.

6. The apparatus of claim 5 , wherein the encryptor is configured to:
adjust a mixing ratio of the noise object to the target object based on a speed of the encryption gesture to the target object.

7. The apparatus of claim 5 , wherein the encryptor is configured to:
mix the noise object to the target object such that a presence of the target object is recognizable in the encrypted target object.

8. The apparatus of claim 1 , wherein the encryptor is configured to:
receive any one or any combination of an area to be visually encrypted in the target object, a noise object to be mixed to the target object, and a mixing ratio of the noise object to the target object.

9. The apparatus of claim 1 , wherein the encryptor is configured to:
overlay the target object with a noise object to visually encrypt the target object.

10. The apparatus of claim 1 , wherein the encryptor is configured to:
divide the target object into groups; and
alternately display the groups to visually encrypt the target object.

11. The apparatus of claim 1 , wherein the decryptor is configured to:
receive either one or both of the length of time and a range of the area corresponding to the decryption gesture.

12. The apparatus of claim 1 , wherein the decryptor is configured to:
set the area corresponding to the decryption gesture as an entire area of the encrypted target object.

13. The apparatus of claim 1 , wherein the decryptor is configured to:
recognize, as the decryption gesture, any one or any combination of a gaze gesture into the area in the encrypted target object, a drag gesture for setting a range of the area in the encrypted target object based on two touch gestures, a sliding gesture to the area in the encrypted target object, and a touch gesture to the area in the encrypted target object.

14. The apparatus of claim 13 , wherein the decryptor is configured to:
recognize, as the decryption gesture, the gaze gesture, the drag gesture, the sliding gesture, or the touch gesture simultaneously input with a touch gesture to a predetermined area on a display.

15. The apparatus of claim 1 , wherein the target object comprises any one or any combination of an image, a text, and a video that are displayed on a display.

16. The apparatus of claim 1 , wherein:
the encryptor is configured to transmit the encrypted target object to another device; and
the decryptor is configured to receive the encrypted target object from the other device.

17. The apparatus of claim 1 , wherein the decryptor is configured to:
adjust the length of time based on the speed of the decryption gesture.

18. The apparatus of claim 1 , wherein the length of time is input from the user or is set in advance to be a predetermined value.

19. A terminal device comprising:
an encryptor configured to visually encrypt a target object by mixing a noise object to the target object, wherein a mixing ratio of the noise object to the target object is adjusted based on a speed of an encryption gesture directed to the target object; and
a transmitter configured to transmit the encrypted target object to another device,
wherein the encrypted target object is decrypted for a length of time based on a speed of a decryption gesture, and
wherein, upon expiration of the length of time, the decrypted target object is re-encrypted.

20. A terminal device comprising:
a receiver configured to receive an encrypted target object from another device; and
a decryptor configured to
detect an input decryption gesture indicating an area in the encrypted target object,
wherein the decryption gesture is detected when one of a gaze gesture, a drag gesture, a sliding gesture, or a touch gesture is input simultaneously with a continuous touch gesture to a predetermined area on a display of the terminal device, and
decrypt the area for a length of time, wherein the length of time is based on a speed of the decryption gesture,

wherein, upon expiration of the length of time, the decrypted area is re-encrypted.

21. A security method comprising:
setting a mode of a security apparatus to be an encryption mode, in which encryption gestures are recognized, or a normal mode, in which encryption gestures are not recognized;
receiving, from a user, an encryption gesture directed to an object displayed on a display;
determining whether the security apparatus is in the encryption mode or the normal mode;
upon determining that the security apparatus is in the moral mode, ignoring the encryption gesture;
upon determining that the security apparatus is in the encryption mode, visually encrypting the object based on the encryption gesture to the object;
decrypting the encrypted object based on a decryption gesture to the encrypted object for a length of time, wherein the length of time is based on a speed of the decryption gesture; and
upon expiration of the length of time, re-encrypting the decrypted object.

22. The security method of claim 21 , wherein the decrypting comprises:
decrypting an area corresponding to the decryption gesture in the encrypted object, during the length of time.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Yoon Seungkeun
• Kim Sang Joon
• Lee Jongwook
• Choi Changmok

Classifications

• H04L9/3271 Primary

  using challenge-response · CPC title

• G06F3/04845

  for image manipulation, e.g. dragging, rotation, expansion or change of colour · CPC title

• G09C5/00

  Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages · CPC title

• G06F3/0488

  using a touch-screen or digitiser, e.g. input of commands through traced gestures · CPC title

• G06F21/36

  by graphic or iconic representation · CPC title