Securing displayed information

• US 9,213,804 B2
• Filed: 02/01/2012
• Issued: 12/15/2015
• Est. Priority Date: 02/01/2012
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Barnes, James W., Alle, Vasantha K., Patel, Devang, Wilson, Ryan R.
• Primary Examiner(s): SIMITOSKI, MICHAEL J
• Application Number:
  US13/363,666
• Publication Number:
  US 20130198850A1
• Time in Patent Office: 1,413 Days
• Field of Search: 726/26, 345/156, 345/179
• US Class Current: 1/1
• CPC Class Codes: G06F 12/0808 with cache invalidating means G06F12/0815 takes precedence
• CPC Class Codes: G06F 21/00 Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
• CPC Class Codes: G06F 21/84 output devices, e.g. displays or monitors
• CPC Class Codes: G06F 2221/2143 Clearing memory, e.g. to prevent the data from being stolen
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06Q 10/10 Office automation; Time management
• CPC Class Codes: G08B 21/0213 System disabling if a separation threshold is exceeded disabling electrical appliances in case of unplugging G08B13/1409
• CPC Class Codes: H04L 12/1827 Network arrangements for conference optimisation or adaptation
• CPC Class Codes: H04L 2209/88 Medical equipments
• CPC Class Codes: H04L 63/0492 by using a location-limited connection, e.g. near-field communication or limited proximity of entities
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/535 Tracking the activity of the user network monitoring arrangements H04L43/00; recording of computer activity G06F11/34
• CPC Class Codes: H04L 67/54 Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 3/42221 Conversation recording systems at the subscriber's set H04M1/656

Abstract

A method, system or computer usable program product for securing displayed information including establishing a session between a first data processing device including a first memory and a second data processing device including a second memory and a display, maintaining session awareness indicating that both the first and second devices are alive in the session, inputting information into the second data processing device during the session producing input information stored in the second memory, and responsive to a determination the session has ended between the first and second device, deleting the input information in the second memory.

Claims

1. A method for securing displayed information comprising:

establishing a shared information session between a first data processing device including a first memory and a second data processing device including a second memory for storing and a display for displaying the shared information;

maintaining session awareness indicating that both the first and second devices are alive in the session wherein the session awareness is maintained by a heartbeat signal sent at regular periods from the first device to the second device without the first device receiving a second heartbeat signal from the second device;

inputting displayed information into the second data processing device during the session, including input data received from the first device, producing displayed input information stored in the second memory;

responsive to the session awareness indicating the session is alive between the first and second device, periodically sharing the displayed input information from the second memory of the second device to the first device for storage in the first memory; and

responsive to the session awareness indicating the session has ended between the first and second device, deleting the displayed input information in the second memory, wherein the second data processing device is an electronic whiteboard.

2. The method of claim 1 further comprising storing the displayed input information in the first memory, and the displayed input information is maintained in the first memory after the session has ended.

3. The method of claim 1 wherein the second device has a timer for determining whether the heartbeat signal has been interrupted.

4. The method of claim 3 wherein the second device determines whether the first device is within a desired proximity to the second device selected from a group of based on the heartbeat signal from the first device and a positional signal based location of the first device.

5. The method of claim 3 wherein the session includes a password stored in the first device and the second device, the password being utilized in the heartbeat signal to confirm the identity of the first device to the second device.

6. The method of claim 1 wherein the information is selected from a group of input according to user interaction with a surface of the display and input according to communication from the first device.

7. The method of claim 1 wherein the displayed input information is displayed on the display and is erased from the display when the session has ended.

8. The method of claim 1 further comprising storing the displayed input information in the first memory, and the displayed input information is maintained in the first memory after the session has ended;

wherein the second data processing device is an electronic whiteboard;

wherein the session awareness is maintained by a heartbeat signal sent at regular periods from the first device to the second device;

wherein the second device has a timer for determining whether the heartbeat signal has been interrupted;

wherein the second device does not send a second heartbeat signal and the first device does not have a timer for timing heartbeat signals;

wherein the second device determines whether the first device is within a desired proximity to the second device based on the heartbeat signal and a positional signal based location of the first device;

wherein the information is input according to user interaction with a surface of the display;

wherein the information is input according to communication from the first device;

wherein the session includes a password stored in the first device and the second device, the password being utilized in the heartbeat signal to confirm the identity of the first device to the second device; and

wherein the input information is displayed on the display and is erased from the display when the session has ended.

9. A computer usable program product comprising a non-transitory computer usable storage medium including computer usable code for use in securing displayed information, the computer usable program product comprising code for performing the steps of:

establishing a shared information session between a first data processing device including a first memory and a second data processing device including a second memory for storing and a display for displaying the shared information;

maintaining session awareness indicating that both the first and second devices are alive in the session wherein the session awareness is maintained by a heartbeat signal sent at regular periods from the first device to the second device without the first device receiving a second heartbeat signal from the second device;

inputting displayed information into the second data processing device during the session, including input data received from the first device, producing displayed input information stored in the second memory;

responsive to the session awareness indicating the session is alive between the first and second device, periodically sharing the displayed input information from the second memory of the second device to the first device for storage in the first memory; and

responsive to the session awareness indicating the session has ended between the first and second device, deleting the displayed input information in the second memory, wherein the second data processing device is an electronic whiteboard.

10. The computer usable program product of claim 9 further comprising storing the displayed input information in the first memory, and the displayed input information is maintained in the first memory after the session has ended.

11. The computer usable program product of claim 9 wherein the second device has a timer for determining whether the heartbeat signal has been interrupted.

12. The computer usable program product of claim 11 wherein the second device determines whether the first device is within a desired proximity to the second device selected from a group of based on the heartbeat signal from the first device and a positional signal based location of the first device.

13. The computer usable program product of claim 11 wherein the session includes a password stored in the first device and the second device, the password being utilized in the heartbeat signal to confirm the identity of the first device to the second device.

14. The computer usable program product of claim 9 wherein the information is selected from a group of input according to user interaction with a surface of the display and input according to communication from the first device.

15. The method of claim 9 wherein the displayed input information is displayed on the display and is erased from the display when the session has ended.

16. A data processing system for securing displayed information, the data processing system comprising:

a processor; and

a memory storing program instructions which when executed by the processor execute the steps of;

establishing a shared information session between a first data processing device including a first memory and a second data processing device including a second memory for storing and a display for displaying the shared information;

maintaining session awareness indicating that both the first and second devices are alive in the session wherein the session awareness is maintained by a heartbeat signal sent at regular periods from the first device to the second device without the first device receiving a second heartbeat signal from the second device;

inputting displayed information into the second data processing device during the session, including input data received from the first device, producing displayed input information stored in the second memory;

responsive to the session awareness indicating the session is alive between the first and second device, periodically sharing the displayed input information from the second memory of the second device to the first device for storage in the first memory; and

responsive to the session awareness indicating the session has ended between the first and second device, deleting the displayed input information in the second memory, wherein the second data processing device is an electronic whiteboard.

17. The data processing system of claim 16 further comprising storing the displayed input information in the first memory, and the displayed input information is maintained in the first memory after the session has ended.

18. The data processing system of claim 16 wherein the second device has a timer for determining whether the heartbeat signal has been interrupted.

19. The data processing system of claim 18 wherein the second device determines whether the first device is within a desired proximity to the second device selected from a group of based on the heartbeat signal from the first device and a positional signal based location of the first device.

20. The data processing system of claim 18 wherein the session includes a password stored in the first device and the second device, the password being utilized in the heartbeat signal to confirm the identity of the first device to the second device.

21. The data processing system of claim 16 wherein the information is selected from a group of input according to user interaction with a surface of the display and input according to communication from the first device.

22. The data processing system of claim 16 wherein the displayed input information is displayed on the display and is erased from the display when the session has ended.