CN101635017B - Electronic device and method for preventing display picture data from being intercepted - Google Patents
Electronic device and method for preventing display picture data from being intercepted Download PDFInfo
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- CN101635017B CN101635017B CN2008100296700A CN200810029670A CN101635017B CN 101635017 B CN101635017 B CN 101635017B CN 2008100296700 A CN2008100296700 A CN 2008100296700A CN 200810029670 A CN200810029670 A CN 200810029670A CN 101635017 B CN101635017 B CN 101635017B
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Abstract
The invention discloses an electronic device and a method for preventing display picture data from being intercepted. The device comprises a display, a driver and a controller, wherein the display is used for displaying a picture; the driver is used for generating an interference image at a predetermined frequency, superposing the generated interference image with an image picture to be output to form an interference picture which makes the content of the image picture still recognized by human eyes, and sending the interface picture; and the controller is used for controlling the display, receiving the interference picture transmitted by the driver and outputting the received interference picture to the display for display. The method mainly comprises the steps of: generating the interference image at the predetermined frequency; superposing the generated interference image with the image picture to be output to form the interference picture which makes the content of the image picture still recognized by the human eyes; and then displaying the interference picture. Therefore, the aim of preventing the display picture data from being intercepted is achieved.
Description
[technical field]
The invention relates to a kind of electronic installation and method of protecting display picture data, be meant especially a kind ofly to suffer the electronic installation and the method for intercepting to prevent display picture data through adding interference images.
[background technology]
Arriving along with electronic age; It is also more and more frequent that people carry out commercial activity through electronic equipment; For example through shopping at network, network account transfer etc.; When carrying out these e-business behaviors, usually need input user's authentication information (for example user set number of the account and/or password) with usefulness, and such business model is given and is had the inclination personage (hacker) chance and remove to steal these authentication informations as authentication.
The hacker can be at electronic equipment (for example computing machine or hand-held device) when connecting to network; Through network installation " button record program " and " picture capturing record program " in electronic equipment; " button record program " can be noted down user's input process; And " picture capturing record program " can be noted down the picture that the user saw, both collocation are got up just can analyze user's operating process, and then obtains user's number of the account or other confidential data through network.Therefore many people are normal has leaked personal data, account number cipher and has not known.
Therefore, the present invention is directed to this situation, propose control in response to the road.
[summary of the invention]
Therefore, the object of the invention is promptly providing a kind of display picture data that prevents electronic installation to suffer the method for intercepting.
So the present invention prevents that the display picture data of electronic installation from suffering the method for intercepting to comprise following step:
(A) produce an interference images with a preset frequency, and image frame of it and preparation output is coincided mutually, make this image frame content still can be by the interference picture of human eye to constitute one; And
(B) showing should the interference picture.
Another object of the present invention is promptly providing a kind of display picture data that prevents to suffer the electronic installation of intercepting.
So the present invention prevents that display picture data from suffering the electronic installation of intercepting to comprise a display, a driver and a controller.
Display is in order to display frame.
Driver produces an interference images with a preset frequency, and image frame of it and preparation output is coincided mutually, makes this image frame content still can be by the interference picture of human eye to constitute one, and should disturb picture to see off.
Controller is in order to controlling this display, and receives the interference picture that this driver transmits and to this display of exporting and show.
Compared to prior art; The present invention produces interference images with a preset frequency; And the image frame that interference images and preparation are exported coincides mutually; The fragment static image that makes picture capturing record program obtain has similar interference of noise, and is difficult to identification, and the person's of avoiding the use of confidential data suffers intercepting.
For the object of the invention, structural attitude and function thereof are had further understanding, conjunction with figs. specifies as follows now:
[description of drawings]
Fig. 1 is a synoptic diagram, explains that the present invention prevents that display picture data from suffering the framework of preferred embodiment of the electronic installation of intercepting.
Fig. 2 is a process flow diagram, explains that the present invention prevents that the display picture data of electronic installation from suffering the flow process of the method for intercepting.
Fig. 3 is a synoptic diagram, and the pattern of an interference images is described.
Fig. 4 is a synoptic diagram, and an image frame of preparation output is described.
Fig. 5 is a synoptic diagram, and the interference picture after the image frame that interference images and preparation are exported coincides is described.
Fig. 6 is a synoptic diagram, and the pattern of an interference images is described.
Fig. 7 is a synoptic diagram, and the pattern of an interference images is described.
Fig. 8 is a synoptic diagram, and the pattern of an interference images is described.
Fig. 9 is a synoptic diagram, and the pattern of an interference images is described.
[embodiment]
Consult Fig. 1, the present invention prevents that display picture data from suffering the preferred embodiment of the electronic installation of intercepting to comprise a display 1, a controller 2 and a driver 3.The electronic installation of present embodiment can be personal computer, mobile computer or portable electric device such as mobile phone or PDA etc.
Display 1 is in order to display frame, can be various screens, like CRT screen, lcd screen, LED screen, electricity slurry screen etc.
Controller 2 is in order to control display 1, comprises a core processing unit 21, most video data buffer zone (Frame Buffer) 22, one image synthesis unit (Window Blender) 23 and one data output buffer districts (Output Buffer) 24.Core processing unit 21 is other assemblies in order to control controller 2; A most video data buffer zone 22 are as the usefulness of depositing display picture data; Image synthesis unit 23 will be deposited in most the data in the video data buffer zones 22 and coincide and export output data buffer zone 24 to after the processing; Therefore, data output buffer district 24 preserves and sends display 1 to be shown to the data that the user sees the most at last, and general picture capturing record program is an intercepting image data from here.Yet because controller 2 is the convention assemblies that belong to full-fledged, so that design architecture has is multiple, above-mentioned framework is merely one and gives an example, not as limit.
Driver 3 can be display card or other display device, in order to receive the data that various application software 5 transmit and handle after will the controller 2 of passing to make display process.In this article, the main effect of driver 3 is in order to carry out the method flow that the display picture data that prevents electronic installation shown in Figure 2 suffers intercepting.Before the user will begin to import account number cipher or handle other confidential data; Can set interface (Display mode setting applet) 6 through a display mode sets; Make driver 3 carry out this and prevent that the display picture data of electronic installation from suffering the method for intercepting, to prevent that secret data are by intercepting; Perhaps; The software (for example web browser (Internet Explorer)) that is using by the user; Before getting into processing account number cipher or other confidential data; Initiatively link a display mode and set function library (Display mode settinglibrary) 7, make software can require driver 3 to carry out this through display mode setting function library 7 and prevent that the display picture data of electronic installation from suffering the method for intercepting, to prevent that secret data is by intercepting; Therefore, display mode setting function library 7 is to be designed to and can to link use for various Development of Software persons.
And the display picture data that prevents electronic installation suffers the method for intercepting to comprise step 91-93 shown in Figure 2.
At first, in step 91, driver 3 produces an interference images with a preset frequency, and this preset frequency is 60Hz at present embodiment, yet does not limit with this, and the frequency of interference images only otherwise the data that human eye can't identification display frame are got final product.
Then, in step 92, driver 3 coincides an image frame of interference images and preparation output mutually, makes this image frame content still can be by the interference picture of human eye to constitute one.
At last, in step 93, driver 3 will disturb picture to pass to controller 2, and disturb picture by the display 1 that exports to that controller 2 is incited somebody to action to show this.
Interference images in the step 91 is a black and white constitutes, and it can have multiple pattern, is illustrated in figure 3 as wherein a kind ofly, and by can finding out that interference images is made up of most stains and most white point among the figure, and these stains and white point position are by the corresponding decision of most random numbers.Driver 3 can once produce X*Y random number (X and Y are the pixel (pixel) of picture length and width) with the preset frequency of 60Hz; These random numbers are between 0-n; A pixel on the corresponding picture of each random number representes that when the value of random number is 0 this pixel is a stain, and numeral is not that 0 o'clock this pixel is a white point; N can the person of being used reset the frequency that changes these stains appearance through display mode setting interface 6; To obtain different interference picture effects, for example n is if set forr a short time, and then the frequency of stain appearance maybe be higher.
Suppose the image frame of Fig. 4 for preparation output, then of step 92, driver 3 coincides the interference images of Fig. 3 with the image frame that Fig. 4 prepares output mutually, to constitute an interference picture as shown in Figure 5.Driver 3 can carry out image through software calculation process or special-purpose image processing hardware and coincide, and the principle that coincides is following: (a) image frame of preparation output and each pixel of interference images are man-to-man corresponding relation; (b) when the corresponding picture element colour of interference images when black, the color of the corresponding pixel of the image frame of preparation output is output as black; (c) when the corresponding picture element colour of interference images when being white, the color of the corresponding pixel of the image frame of preparation output is output as its color originally.In brief, promptly driver 3 is that the part of black will disturb the picture correspondence to be shown as black in interference images, and will disturb the picture correspondence in interference images for the part of white and be shown as the image frame that preparation is exported.
Though some stain of interference picture of Fig. 5, and under the renewal frequency of 60Hz, can let the user feel film flicker, the user can find out still because of the relation of visual persistence effect what picture originally is.And note down program for the picture capturing of attempt capturing picture data, because it is to come the capturing picture data with lower frequency,, and be difficult to identification so its fragment static image of obtaining has similar interference of noise.
Shown in Figure 6 is another kind of interference images; Constitute by most black streakings and most informal voucher line; These black streakings and informal voucher line are all level and parallel; Driver 3 also produces this interference images with the frequency of 60Hz, and the mode of generation is that the direction that the interference images edge is vertical with black streaking moves a pixel, makes next interference images and last interference images differ a pixel in vertical direction; Yet the mode that interference images produces not necessarily will the edge direction vertical with black streaking move a pixel; In fact as long as move a pixel and just can reach effects of jamming along differing from black streaking and the parallel direction of informal voucher line, but the interference effect that the edge direction vertical with black streaking moves is best.
Shown in Figure 7 is another kind of interference images, and itself and Fig. 6 are similar, and difference is that its black streaking and informal voucher line are to be formed at vertical direction, and the mode of its generation is identical with Fig. 6.
Fig. 8 and shown in Figure 9 be another kind of interference images, Fig. 8 is constituted by the black streaking and the informal voucher line of oblique parallel, Fig. 9 is then constituted by irrelevancy capable black streaking and informal voucher line, and the width or the length of black streaking is not quite similar among the figure.Therefore, interference images has multiple variation, and present embodiment is only enumerated several the explanation, not as limit.In addition, the width of the black streaking among Fig. 6-Fig. 9 can be set interface 6 through display mode by the user and set.
What deserves to be mentioned is that shown in Figure 5 is a kind of interference images that only coincides, yet aforesaid multiple interference images can be selected two and coincide simultaneously to come up, so interference effect is better.
In sum; The present invention produces interference images with a preset frequency; And an image frame of interference images and preparation output coincided mutually, the fragment static image that makes picture capturing record program obtain has similar interference of noise, and is difficult to identification; The person's of avoiding the use of confidential data suffers intercepting, so can reach the object of the invention really.
Claims (24)
1. one kind prevents that display picture data from suffering the method for picture capturing record program intercepts, and this picture capturing record program is that this method is applied to an electronic installation, it is characterized in that with an acquisition frequency acquisition display picture data, and this method comprises following step:
(A) produce the interference images of change in time with a preset frequency, and image frame of will it and preparation exporting coincides mutually, make this image frame content still can be by the interference picture of human eye to constitute one, wherein, this preset frequency be higher than this acquisition frequency; And
(B) on this electronic installation one display, showing should the interference picture.
2. the display picture data that prevents as claimed in claim 1 suffers the method for intercepting, it is characterized in that, this interference images is that black constitutes with white.
3. the display picture data that prevents as claimed in claim 2 suffers the method for intercepting; It is characterized in that; Being that the part of black is corresponding in this interference images shows that this interferences picture is a black, be the image frame that this interference picture of part correspondence demonstration of white is exported for this preparation in this interference images.
4. the display picture data that prevents as claimed in claim 3 suffers the method for intercepting, it is characterized in that this interference images is made up of most stains and most white point.
5. the display picture data that prevents as claimed in claim 4 suffers the method for intercepting; It is characterized in that; The stain that appears in this interference images and white point position be by the corresponding decision of most random numbers, when one of them value of these random numbers equals a setting value, then is stain.
6. the display picture data that prevents as claimed in claim 5 suffers the method for intercepting, it is characterized in that, the value of these random numbers is between 0-n, and wherein the value of n can be reset and changes the frequency that these stains occur.
7. the display picture data that prevents as claimed in claim 6 suffers the method for intercepting, it is characterized in that, this setting value is 0.
8. the display picture data that prevents as claimed in claim 3 suffers the method for intercepting, it is characterized in that, this interference images is made up of most black streakings and most informal voucher line.
9. the display picture data that prevents as claimed in claim 8 suffers the method for intercepting, it is characterized in that, these black streakings and informal voucher line are parallel.
10. the display picture data that prevents as claimed in claim 9 suffers the method for intercepting; It is characterized in that; This interference images all produces at every turn again; Next interference images and last interference images are inequality, and the producing method of next interference images is that the last interference images edge direction vertical with these black streakings moves a pixel.
11. the display picture data that prevents as claimed in claim 9 suffers the method for intercepting; It is characterized in that; This interference images all produces at every turn again; Next interference images and last interference images are inequality, and the producing method of next interference images is that last interference images edge differs from these black streakings and the parallel direction of informal voucher line moves a pixel.
12. suffer the method for intercepting like one of them described display picture data that prevents of claim 1-11, it is characterized in that this preset frequency is 60Hz.
13. one kind prevents that display picture data from suffering the electronic installation of picture capturing record program intercepts, this picture capturing record program is with an acquisition frequency acquisition display picture data, it is characterized in that this electronic installation comprises:
One display is in order to display frame;
One driver; Produce the interference images of change in time with a preset frequency; And image frame of it and preparation output coincided mutually, make this image frame content still can be to constitute one by the interference picture of human eye, wherein; This preset frequency is higher than this acquisition frequency, and should disturb picture to see off; And
One controller in order to controlling this display, and receives the interference picture that this driver transmits and to this display of exporting and show.
14. the display picture data that prevents as claimed in claim 13 suffers the electronic installation of intercepting, it is characterized in that, this interference images is that black constitutes with white.
15. the display picture data that prevents as claimed in claim 14 suffers the electronic installation of intercepting; It is characterized in that; This driver is that the part of black should disturb the picture correspondence to be shown as black in this interference images, and will disturb the picture correspondence in this interference images for the part of white and be shown as the image frame that this preparation is exported.
16. the display picture data that prevents as claimed in claim 15 suffers the electronic installation of intercepting, it is characterized in that this interference images is made up of most stains and most white point.
17. the display picture data that prevents as claimed in claim 16 suffers the electronic installation of intercepting; It is characterized in that; The stain that appears in this interference images and white point position be by the corresponding decision of most random numbers, when one of them value of this random number equals a setting value, then is stain.
18. the display picture data that prevents as claimed in claim 17 suffers the electronic installation of intercepting, it is characterized in that, the value of these random numbers is between 0-n, and wherein the value of n can be reset and changes the frequency that these stains occur.
19. the display picture data that prevents as claimed in claim 18 suffers the electronic installation of intercepting, it is characterized in that, this setting value is 0.
20. the display picture data that prevents as claimed in claim 15 suffers the electronic installation of intercepting, it is characterized in that, this interference images is made up of most black streakings and most informal voucher line.
21. the display picture data that prevents as claimed in claim 20 suffers the electronic installation of intercepting, it is characterized in that, these black streakings and informal voucher line are parallel.
22. the display picture data that prevents as claimed in claim 21 suffers the electronic installation of intercepting; It is characterized in that; This driver all produces this interference images at every turn again; Next interference images and last interference images are inequality, and next interference images is that the last interference images edge direction vertical with these black streakings moves a pixel.
23. the display picture data that prevents as claimed in claim 21 suffers the electronic installation of intercepting; It is characterized in that; This driver all produces this interference images at every turn again; Next interference images and last interference images are inequality, and next interference images is that last interference images edge differs from these black streakings and the parallel direction of informal voucher line moves a pixel.
24. suffer the electronic installation of intercepting like one of them described display picture data that prevents of claim 13-23, it is characterized in that this preset frequency is 60Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100296700A CN101635017B (en) | 2008-07-23 | 2008-07-23 | Electronic device and method for preventing display picture data from being intercepted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100296700A CN101635017B (en) | 2008-07-23 | 2008-07-23 | Electronic device and method for preventing display picture data from being intercepted |
Publications (2)
| Publication Number | Publication Date |
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| CN101635017A CN101635017A (en) | 2010-01-27 |
| CN101635017B true CN101635017B (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100296700A Expired - Fee Related CN101635017B (en) | 2008-07-23 | 2008-07-23 | Electronic device and method for preventing display picture data from being intercepted |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105657409A (en) | 2016-01-27 | 2016-06-08 | 京东方科技集团股份有限公司 | Display screen, glasses, display system and play method |
| CN105930736A (en) * | 2016-04-29 | 2016-09-07 | 宇龙计算机通信科技(深圳)有限公司 | Display method, display apparatus, display terminal and descrambling terminal |
| CN109391835A (en) * | 2017-08-04 | 2019-02-26 | 飞捷科技股份有限公司 | Image display system and the image display method being applied thereon |
| CN112599068A (en) * | 2020-12-17 | 2021-04-02 | 王鹏 | White display control method of color display screen |
| CN112599079A (en) * | 2020-12-17 | 2021-04-02 | 郑州胜龙信息技术股份有限公司 | Display information protection method and LED display system |
| CN112687240A (en) * | 2020-12-18 | 2021-04-20 | 郑州胜龙信息技术股份有限公司 | Display information protection method, display and display equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083607A (en) * | 1992-08-24 | 1994-03-09 | 卡西欧计算机公司 | Image display apparatus |
| CN1428697A (en) * | 2001-12-26 | 2003-07-09 | 神达电脑股份有限公司 | Security equipment for covering data on display screen and its method |
| CN1937733A (en) * | 2005-09-19 | 2007-03-28 | 海信集团有限公司 | Method for regulating picture-in-puture display transmitance |
-
2008
- 2008-07-23 CN CN2008100296700A patent/CN101635017B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083607A (en) * | 1992-08-24 | 1994-03-09 | 卡西欧计算机公司 | Image display apparatus |
| CN1428697A (en) * | 2001-12-26 | 2003-07-09 | 神达电脑股份有限公司 | Security equipment for covering data on display screen and its method |
| CN1937733A (en) * | 2005-09-19 | 2007-03-28 | 海信集团有限公司 | Method for regulating picture-in-puture display transmitance |
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| CN101635017A (en) | 2010-01-27 |
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