Obscuring displayed information

• US 9,824,475 B2
• Filed: 12/30/2013
• Issued: 11/21/2017
• Est. Priority Date: 12/30/2013
• Status: Active Grant

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Stewart, Aaron Michael, Locker, Howard J., Nicholson, John Weldon, Case, Michaela Rose
• Primary Examiner(s): BEUTEL, WILLIAM A
• Application Number:
  US14/143,933
• Publication Number:
  US 20150186673A1
• Time in Patent Office: 1,422 Days
• Field of Search: None
• CPC Class Codes: G06F 21/55 Detecting local intrusion or implementing counter-measures
• CPC Class Codes: G06F 2221/032 Protect output to user by software means
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text

Abstract

A method can include rendering pixel representations of information to a rectangular display; and rendering pixel representations of perspectival text to the rectangular display where the pixel representations of perspectival text overlay a portion of the pixel representations of information. Various other methods, apparatuses, systems, etc., are also disclosed.

Claims

1. A method comprising:

rendering pixel representations of information to a rectangular display via display circuitry of the computing device to generate a user view of the pixel representations of the information in an orientation selected from a portrait orientation and a landscape orientation of the rectangular display;

detecting an object outside an authorized viewing field by detection circuitry of the computing device wherein the detecting comprises determining a point of view for the object as an unauthorized viewer point of view; and

responsive to the detecting, generating obscuring text using a database accessible by the computing device and rendering pixel representations of the obscuring text to the rectangular display via the display circuitry based at least in part on the point of view of the object in at least one orientation that differs from the orientation of the user view wherein the pixel representations of the obscuring text overlay and obscure a portion of the pixel representations of the information as rendered to the rectangular display.

2. The method of claim 1 further comprising periodically rendering pixel representations of different obscuring text to the rectangular display.

3. The method of claim 1 wherein generating comprises randomly selecting the obscuring text.

4. The method of claim 1 wherein the obscuring text comprises at least one color.

5. The method of claim 1 wherein the pixel representations of information comprise a color and wherein the pixel representations of the obscuring text comprise a different color.

6. The method of claim 1 wherein the pixel representations of the obscuring text comprise a phrase.

7. The method of claim 6 wherein the phrase is selected from the database according to a particular tone that conveys information to psychologically deter an unauthorized viewer.

8. A system comprising:

a processor;

memory operatively coupled to the processor;

detection circuitry that detects an object outside an authorized viewing field at least in part by determination of a point of view for the object as an unauthorized viewer point of view;

a rectangular display operatively coupled to the processor;

display circuitry that receives information from the processor and that renders pixel representations of the information to the rectangular display to generate a user view of the pixel representations of the information in an orientation selected from a portrait orientation and a landscape orientation of the rectangular display, and that, responsive to detection by the detection circuitry of an object outside the authorized viewing field, generates obscuring text using a database and renders pixel representations of the obscuring text to the rectangular display based at least in part on the point of view of the object in at least one orientation that differs from the orientation of the user view wherein the pixel representations of the obscuring text overlay and obscure at least a portion of the pixel representations of the information as rendered to the rectangular display.

9. The system of claim 8 wherein the display circuitry comprises circuitry that generates the obscuring text by random selection of the obscuring text from the database.

10. The system of claim 8 wherein the detection circuitry comprises a sensor that senses one or more objects outside the authorized viewing field and selection circuitry that selects at least one of the at least one orientation for the pixel representations of the obscuring text based at least in part on a position of a sensed object outside the authorized viewing field.

11. The system of claim 10 wherein the selection circuitry selects multiple orientations for pixel representations of the obscuring text based at least in part on sensed objects in the field of view of the rectangular display.

12. The system of claim 8 wherein the pixel representations of the obscuring text comprise a phrase.

13. The system of claim 12 wherein the phrase is selected from the database according to a particular tone that conveys information to psychologically deter an unauthorized viewer.

14. One or more non-transitory computer-readable storage media comprising processor-executable instructions to instruct an information handling system to:

render pixel representations of information to a rectangular display to generate a user view of the pixel representations of the information in an orientation selected from a portrait orientation and a landscape orientation of the rectangular display;

detect an object outside an authorized viewing field at least in part by determination of a point of view for the object as an unauthorized viewer point of view; and

responsive to detection of the objection, generate obscuring text using a database and render pixel representations of the obscuring text to the rectangular display based at least in part on the point of view of the object in at least one orientation that differs from the orientation of the user view wherein the pixel representations of obscuring text overlay and obscure a portion of the pixel representations of the information as rendered to the rectangular display.

15. The one or more non-transitory computer-readable storage media of claim 14 comprising instructions to instruct an information handling system to select at least one of the at least one orientation for the pixel representations of the obscuring text based at least in part on a position of the object.

16. The one or more non-transitory computer-readable storage media of claim 14 comprising instructions to instruct an information handling system to periodically render pixel representations of different obscuring text to the rectangular display wherein the pixel representations of the different obscuring text overlay a portion of the pixel representations of the information.

17. The one or more non-transitory computer-readable storage media of claim 14 wherein the pixel representations of the obscuring text comprise a phrase.

18. The one or more non-transitory computer-readable storage media of claim 17 wherein the phrase is selected from the database according to a particular tone that conveys information to psychologically deter an unauthorized viewer.