Oscillating video refresh
AssigneeGoldman, Sachs & Co.
InventorsMichael Mattioli, Frederick Biga
Life of this patent
Estimating the term…
Abstract
A system and a method are disclosed describing a mechanism for preventing recording of security sensitive media content when that content is displayed on a screen. The mechanism includes selecting two refresh rates for a display and oscillating between those two refresh rates thereby preventing a recording device's recording frame rate from synchronizing with the display device's refresh rate. As a result, anything recorded by the recording device will be distorted.
Claims20
A method for preventing recording of a display screen, the method comprising:
- determining that security sensitive media content has been requested to be displayed;
- responsive to determining that the security sensitive media content has been requested to be displayed:
- determining a first refresh rate for displaying the security sensitive media content;
- determining a second refresh rate for displaying the security sensitive media content, the second refresh rate differing from the first refresh rate;
- transmitting a first command to a display device to change a previously set refresh rate to the first refresh rate;
- and
- responsive to determining that a threshold amount of time has elapsed since transmitting the first command, transmitting a second command to the display device to change the first refresh rate to the second refresh rate.
A non-transitory computer-readable medium comprising memory with instructions encoded thereon for preventing recording of a display screen, the instructions causing one or more processors to perform operations when executed, the instructions comprising instructions to:
- determine that security sensitive media content has been requested to be displayed;
- responsive to determining that the security sensitive media content has been requested to be displayed:
- determine a first refresh rate for displaying the security sensitive media content;
- determine a second refresh rate for displaying the security sensitive media content, the second refresh rate differing from the first refresh rate;
- transmit a first command to a display device to change a previously set refresh rate to the first refresh rate;
- and
- responsive to determining that a threshold amount of time has elapsed since transmitting the first command, transmit a second command to the display device to change the first refresh rate to the second refresh rate.
A system for preventing recording of a display screen, the system comprising:
- memory with instructions encoded thereon;
- and
- one or more processors that, when executing the instructions, are caused to perform operations comprising:
- determining that security sensitive media content has been requested to be displayed;
- responsive to determining that the security sensitive media content has been requested to be displayed:
- determining a first refresh rate for displaying the security sensitive media content;
- determining a second refresh rate for displaying the security sensitive media content, the second refresh rate differing from the first refresh rate;
- transmitting a first command to a display device to change a previously set refresh rate to the first refresh rate;
- and
- responsive to determining that a threshold amount of time has elapsed since transmitting the first command, transmitting a second command to the display device to change the first refresh rate to the second refresh rate.
Dependencies are inferred from the claim text.