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Encryption Binding and Encryption Display Control Method and Device, Display System

A technology of control system and display screen control, which is applied in the direction of transmission system, digital transmission system, safety communication device, etc., and can solve the problems such as the inability to realize the encrypted binding of internal components of the LED display control system

Active Publication Date: 2020-06-23
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an encryption binding method, an encryption binding device, an encryption display control method, an encryption display control device, and a display screen system, which solve the problem that LED display screen control cannot be realized in the prior art Problems with cryptographic binding between internal components of the system

Method used

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  • Encryption Binding and Encryption Display Control Method and Device, Display System
  • Encryption Binding and Encryption Display Control Method and Device, Display System
  • Encryption Binding and Encryption Display Control Method and Device, Display System

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0034] like figure 1 As shown, an encryption binding method provided in the first embodiment of the present invention includes:

[0035] Step S11: detect whether the value of the encrypted flag in the register needs encrypted output;

[0036] Step S13: Detect whether it is connected to the display control card and powered on;

[0037]Step S15: When it is detected that the display control card is connected to power and needs encrypted output, add the secret key code and send the encrypted binding to the field frequency signal of the image data to be output to the display control card connected to power Instructions are sent to the display control card connected to power to enable encryption binding of the display control card connected to power.

[0038] In this embodiment, steps S11, S13 and S15 are executed by the display controller, for example, to encrypt and bind with the back-end display control card. The display controller is, for example, a dual-mode asynchronous cont...

no. 2 example

[0042] like image 3 As shown, an encrypted display control method provided in the second embodiment of the present invention includes:

[0043] Step S31: Periodically judge whether the secret key code in the field frequency signal of the input image data matches successfully with the locally preset secret key code;

[0044] Step S33: If the matching is successful, display the input image data on the display screen;

[0045] Step S35: If the matching fails, intercept the input image data.

[0046] In this embodiment, steps S31, S33 and S35 are executed by the display screen control card, for example, to perform encrypted binding with the front-end display screen controller. The display screen controller is, for example, a dual-mode asynchronous control card or a sending card , the display screen control card is, for example, a receiving card. Specifically, after the display control card is encrypted and bound to the front-end display controller, the display control card pro...

no. 3 example

[0050] like Figure 5 As shown, an encryption binding device 50 provided in the third embodiment of the present invention includes: a first detection module 51 , a second detection module 53 and an encryption binding control module 55 . Wherein, the first detection module 51 is used to detect the value of the encryption flag in the register to judge whether encryption output is needed; the second detection module 53 is used to detect whether the display screen control card is connected to power; and the encryption binding control module 55 uses When it is detected that the display control card is connected to power and needs encrypted output, add the secret key code to the field frequency signal of the image data to be output to the connected display control card, and send the encrypted binding command to The display control card that is connected to power enables encryption and binding of the display control card that is connected to power.

[0051] The encrypted binding dev...

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PUM

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Abstract

The embodiment of the invention discloses an encryption binding and encryption display control method and device as well as a display screen system. After a display screen controller is connected with a display screen control card, programs at the display screen controller side can start an encryption function of the display screen control card and can uninterruptedly send specified data between the display screen controller and the display screen control card during use, if the display screen controller is switched, the display screen control card cannot receive the specified data sent by the display screen controller, the display screen control card does not work continuously to ensure that a display screen displays an exception, and thus the effect of binding the display screen control card to the display screen controller can be achieved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an encryption binding method and device, an encryption display control method and device, and a display screen system. Background technique [0002] For the current LED commercial display market, some users need to charge according to the date and time of use of the screen. At this time, a scheme that can encrypt the screen and can be authorized is needed. When the authorization arrives period, the screen no longer displays normally. [0003] In the prior art, there is a technical solution for encrypting and binding the LED display control system and the computer. For illegal users who replace the computer or the LED display control system, the LED display control system can identify and intercept them. , improve the safety performance of the system playback; replace the computer to play illegal video sources, the LED display control system will not accept it, which solves the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32G09G3/32
CPCG09G3/32H04L9/32H04L9/3226H04L9/3234
Inventor 何琳琳梁伟刘延
Owner XIAN NOVASTAR TECH