200939109 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種保護顯示晝面資料的方法，特別 是指一種藉由加入干擾影像以防止電子裝置之顯示畫面資 料遭截取的方法。 【先前技術】 隨著電子時代的來臨’人們透過電子設備來進行商業 行為也越來越頻繁，例如透過網路購物、網路轉帳等，當 進行這些電子商業行為時，常常需要輸入使用者認證資訊（ 例如使用者設定的帳號及/或密碼）以作為認證之用，而這樣 的商業模式卻給有心人士（駭客）可趁之機去盜取這些認證資 訊。 駭客會在電子設備（例如電腦或手持裝置）連上網路時， 透過網路女裝按鍵紀錄程式"與”畫面截取紀錄程式"在電子 設備中，"按鍵紀錄程式"會紀錄使用者的輸入過程，而"畫 面截取紀錄程式，，會紀錄使用者所看到的畫面，兩者搭配起 來就可刀析使用者的操作過程，進而透過網路取得使用者 的帳號或其它機密資料。許多人常因此沒漏了個人資料、 帳號密碼而不自知。 因此，本發明針對這種狀況，提出防治的因應之道。 【發明内容】 因此，本發明之目的，即在提供一種防止電子裝置之 顯示畫面資料遭截取的方法。 於是，本發明防止電子裝置之顯示畫面資料遭截取的 200939109 方法包含下述步驟： (A) 以預疋頻率產生一干擾影像，並將之與預備輸出 像晝面相叠合’以構成一使該影像畫面内容仍可被 人眼辨識之干擾畫面；及 (B) 顯示該干擾畫面。 本發月之另一目的，即在提供一種防止顯示畫面資料 遭截取的電子裝置。 於疋’本發明防止顯示畫面資料遭截取的電子裝置包 含一顯示器、一驅動器及一控制器。 顯示器係用以顯示畫面。 驅動器係以一預定頻率產生一干擾影像，並將之與預 備輸出之影像晝面相疊合，以構成一使該影像畫面内容仍 可被人眼辨識之干擾畫面，且將該干擾畫面送出。 控制器係用以控制該顯示器，並接收該驅動器傳來的 干擾晝面且將之輸出至該顯示器顯示。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖1 ’本發明防止顯示畫面資料遭截取的電子裝置 之較佳實施例包含一顯示器丨、一控制器2及一驅動器3。 本實施例之電子裝置可以是個人電腦、筆記型電腦或手持 式電子裝置如行動電話或者PDA等。 顯示器1是用以顯示畫面，可為各種螢幕，如CRT螢 200939109 幕、LCD螢幕、LED螢幕、電漿螢幕等。 * 控制器2是用以控制顯示器1，包括一核心處理單元 21、多數個顯示資料緩衝區（Frame Buffer)22、一影像合成 單元（Window Blender)23及一輸出資料緩衝區（Output Buffer)24。核心處理單元21是用以控制控制器2的其它元 件，多數個顯示資料緩衝區22是作為存放顯示畫面資料之 用，影像合成單元23係將存放於多數個顯示資料緩衝區22 内的資料作疊合處理後輸出至輸出資料緩衝區24 ’因此， © 輸出資料缓衝區24是保存並傳送給顯示器1最終將顯示給 使用者看的資料，而一般的晝面截取紀錄程式便是從此處 截取影像資料。然而由於控制器2是屬於已經發展成熟的 習知元件，故設計架構有多種’上述的架構僅為一舉例， 並不以此為限。 驅動器3可為顯示卡或其它顯示裝置’係用以接收各 種應用軟體5傳來的資料並處理後將之傳給控制器2作顯 示處理。在本文中’驅動器3的主要作用係用以執行圖2 〇 所示之防止電子裝置之顯示畫面資料遭截取的方法流程。 #使_用者要開始輸入帳號密碼或處理其它機密資料前，可 透過一顯示模式設定介面（Display mode setting applet)6來 設定，使得驅動器3執行該防止電子裝置之顯示晝面資料 遭截取的方法，以防止機密的資料被截取；或者，由使用 者正在使用的軟體（例如網頁瀏覽器（Internet Explorer))，在 $^處_理帳號密碼或其它機密資料前，主動連結一顯示模 式設定函式庫（Display mode setting library)7 ’透過顯示模 200939109 式設定函式庫7使得軟體可以要求驅動器3執行該防止電 子裝置之顯示晝面資料遭截取的方法，以防止機密的資料 被截取，因此，顯示模式設定函式庫7是設計成可以供各 種軟體之開發者連結使用。 而防止電子裝置之顯示晝面資料遭截取的方法包含圖2 所示之步驟91〜93。 ❹200939109 IX. Description of the Invention: [Technical Field] The present invention relates to a method for protecting display data, and more particularly to a method for preventing interception of display information of an electronic device by adding an interference image. [Prior Art] With the advent of the electronic age, 'people are more and more frequent through electronic devices, such as online shopping, online money transfer, etc. When conducting these electronic business activities, it is often necessary to enter user authentication. Information (such as user-defined accounts and/or passwords) is used for authentication purposes, and such a business model gives the minded person (hacker) a chance to steal the certification information. When an electronic device (such as a computer or a handheld device) is connected to the Internet, the wiki will use the online women's button to record the program " and the screen capture program" in electronic devices, "keyloggers" The user's input process, and the "screen capture program" will record the user's view. The two can be combined to analyze the user's operation process, and then obtain the user's account or other network through the network. Confidential information. Many people often do not miss personal data, account passwords and do not know. Therefore, the present invention addresses the situation and proposes a response to prevention and treatment. [Summary of the Invention] Accordingly, the object of the present invention is to provide A method for preventing interception of display material of an electronic device. Thus, the method of the present invention for preventing interception of display data of an electronic device comprises the following steps: (A) generating an interference image at a pre-frequency and combining it with The preliminary output is superimposed on the surface to form an interference picture that allows the image content to be recognized by the human eye; and (B) The purpose of the present invention is to provide an electronic device for preventing interception of display image data. The electronic device of the present invention for preventing display image data from being intercepted includes a display, a driver and a control The display is used to display a picture. The driver generates an interference image at a predetermined frequency and superimposes it on the image side of the preliminary output to form an interference picture that can still be recognized by the human eye. And transmitting the interference screen. The controller is configured to control the display, and receive the interference surface transmitted by the driver and output the same to the display. [Embodiment] Related to the foregoing and other technical contents of the present invention, Features and effects will be apparent from the following detailed description of a preferred embodiment of the reference drawings. Referring to Figure 1 'The preferred embodiment of the present invention for preventing electronic data from being intercepted includes a display.丨, a controller 2 and a driver 3. The electronic device of this embodiment may be a personal computer or a notebook Brain or handheld electronic devices such as mobile phones or PDAs. Display 1 is used to display screens, such as CRT Firefly 200939109, LCD screen, LED screen, plasma screen, etc. * Controller 2 is used to The control unit 1 includes a core processing unit 21, a plurality of display data buffers (Frame Buffers) 22, an image synthesis unit (Window Blender) 23, and an output data buffer (Output Buffer) 24. The core processing unit 21 is used. In the other components of the control controller 2, a plurality of display data buffers 22 are used for storing display screen data, and the image synthesizing unit 23 superimposes and stores the data stored in the plurality of display data buffers 22 to Output data buffer 24 ' Therefore, the output data buffer 24 is saved and transmitted to the display 1 and will eventually be displayed to the user, and the general face capture program intercepts the image data from here. However, since the controller 2 is a well-known component that has been developed, there are many design architectures. The above-described architecture is merely an example and is not limited thereto. The drive 3 can be a display card or other display device for receiving data transmitted by various application software 5 and processing it and transmitting it to the controller 2 for display processing. In this context, the main function of the driver 3 is to perform the method flow for preventing the interception of the display material of the electronic device as shown in FIG. #使_Users can start to enter the account password or process other confidential information, can be set through a display mode setting interface (Display mode setting applet) 6, so that the driver 3 performs the electronic device to prevent the display of the data is intercepted Method to prevent confidential data from being intercepted; or, by the software that the user is using (such as a web browser (Internet Explorer)), actively connect a display mode setting before the account number or other confidential information. The display mode setting library 7' allows the software 3 to request the driver 3 to perform the method of preventing the display of the electronic device from being intercepted by the display mode setting module 200939109, so as to prevent the confidential data from being intercepted. Therefore, the display mode setting library 7 is designed to be used by developers of various softwares. The method for preventing the display of the electronic device from being intercepted includes the steps 91 to 93 shown in FIG. ❹
百先，在步驟91中，驅動器3以一預定頻率產生一干 擾影像，此預定頻率在本實施例為6〇Hz，然而不以此限， 干擾影像之頻率只要不使人眼無法辨識顯示畫面的資料即 "5J* 〇 接者，在步驟92中，驅動器3將干擾影像與預備輸出 之-影像畫面㈣合，以構成—使㈣像畫面内容仍可被 人眼辨識之干擾畫面。 最後’在步驟93中，驅動器3將干擾畫面傳給控制器 2’並由控制器2將之輸出至顯示器】以顯示此干擾畫面。 v驟91中的干擾影像為黑色與白色構成，其可有多種 型式’如@ 3所不為其中—種，由圖中可看出干擾影像係 由多數黑點與多數白點所構成，而這些黑點與白點位置係 由多數亂數對應決定。驅動器3會以6GHz的預錢率—次 產生X*Y個亂數(X與γ為晝面長寬之圖素(p㈣），這些 亂數介於0〜η ’每一個亂數對應畫面上的一個圖素，當亂數 的值為0時表示此圖素是黑點，數字不為〇時該圖素為白 點’ η可被使用者透過顯示模式設定介面6重新設定而改變 該等黑點出現的頻率，以得到不同的干擾畫面效果，例如η 200939109 若設定得愈小，則黑點出現的頻率可能較高。 3兮圖4為預備輸出的影像晝面，則如步驟92所述， 驅：器3將圖3的干擾影像與圖4預備輸出的影像晝面相 疊〇則冓成如冑5所示的_個干擾畫面。驅動 3可藉 f體運算處理或專用之影像處理硬體來進行影像叠合， 疊口的原則如下：⑷預備輸出的影像畫面與干擾影像的每 素為對—的對應關係；（b)當干擾影像之對應圖素顏In the first step, the driver 3 generates an interference image at a predetermined frequency. The predetermined frequency is 6 Hz in the embodiment. However, the frequency of the interference image is not allowed to be recognized by the human eye. The data is the "5J* splicer. In step 92, the driver 3 combines the interference image with the pre-output image-picture (4) to form (4) an interference picture whose image content can still be recognized by the human eye. Finally, in step 93, the driver 3 transmits the interference picture to the controller 2' and outputs it to the display by the controller 2 to display the interference picture. v The interference image in step 91 is composed of black and white, and there are various types of 'such as @3, which are not among them. It can be seen from the figure that the interference image is composed of most black spots and most white spots, and These black and white point positions are determined by the majority of random numbers. The driver 3 will generate X*Y random numbers (X and γ are the pixels of the length and width of the face (p(4)) at a pre-money rate of 6 GHz. These random numbers are between 0 and η ' on each random number corresponding screen. A pixel, when the value of the random number is 0, the pixel is a black dot, and when the number is not 〇, the pixel is a white point 'n can be changed by the user through the display mode setting interface 6 to change the The frequency at which black dots appear to obtain different interference picture effects. For example, η 200939109 If the setting is smaller, the frequency of black spots may be higher. 3兮 Figure 4 is the image of the preliminary output, as shown in step 92. As described above, the drive 3 overlaps the interference image of FIG. 3 with the image output of the preliminary output of FIG. 4, and then forms an interference picture as shown in FIG. 5. The drive 3 can be processed by f-body processing or dedicated image processing. The principle of stacking is as follows: (4) the corresponding relationship between the image screen of the pre-output and the perturbation of the interfering image; (b) when the corresponding image of the interfering image is
色為黑時，預備輸㈣影像晝面之對應圖素的顏色輸出為 黑；⑷當干擾影像之對應圖素顏色為白時，預備輸出的影 像晝面之對應圖素的顏色輸出為其原本之顏色。簡而言之 :即驅動g 3在干擾影像為黑色的部分將干擾晝面對應顯 :為黑色’且在干擾影像為白色的部分將干擾畫面對應顯 示為預備輸出之影像畫面。 雖然圖5的干擾畫面有些黑點，並且在刪z的更新頻 率下會讓使用者覺得畫面閃爍，但使用者因視覺暫留效應 的關係，仍可看出原本的畫面是什麼。而對於企圖截取畫 面資料的畫面截取紀錄程式，由於其是以較低的頻率來截 取畫面資料’故其取得之片段靜態影像有類似雜訊的干擾 ，而難以辨識。 |小tt/夕数黑條紋與多數 白條紋所構成，這些黑條紋與白條紋皆為水平且彼此平行 ’驅動器3亦以60HZ的頻率產生該干擾影像產生的 是將干擾影像沿與黑條紋垂直的方向移動—個圖辛，使二 下一干擾影像與前-干擾影像在#直方向相差—個圖素； 9 200939109 然而干擾影像產生的方式不一定要沿與黑條紋垂直的方向 - 個圖素’其實只要沿異於黑條紋與白條紋彼此平行 的方向移動一個圖素就可達到干擾的效果μ旦丨與黑條紋 垂直的方向移動的干擾效果最佳。 圖7所示為另一種干擾影像，其與圖6類似差別在 於其黑條紋與白條紋是形成於垂直方向，而其產生的方式 是與圖6相同。 > 圖8與圖9所不為另-種干擾影像，為斜向平行 © &黑條紋與白條紋所構成，圖9則為不相平行的黑條紋虚 白條紋所構成’且圖中黑條紋的寬度或長度不盡相同。因 此，干擾影像有多種變化，本實施例僅舉出幾個作說明， 並不以此為限。另外，圖6〜圖9令的黑條紋的寬度，可由 使用者透過顯示模式設定介面6來加以設定。 值得-提的是，圖5所示是僅疊合一種干擾影像，然 而，前述的多種干擾影像可被選擇兩個以上來同時疊合， 如此的干擾效果更佳。 ® ㉟上所述，本發日m定頻率產生干㈣像，並將 干擾影像與預備輸出之-影像畫面相養合，使得畫面截取 紀錄程式取得之片段靜態影像有類似雜訊的干4，而難以 辨識，避免使用者的機密資料遭截取，故確實能達成本發 明之目的。 惟以上所述者’㈣本發明之較佳實施例❿已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 10 200939109 屬本發明專利涵蓋之範圍内。 * 【圖式簡單說明】 圖1是-示意圖，說明本發明防止顯示晝面資料遭截 取的電子裝置的較佳實施例的架構； 圖2是一絲圖1明本發明防止電子裝置之顯示畫 面資料遭截取的方法的流程； 圖3是一示意圖’說明一干擾影像的型式； 圖4是一示意圖’說明預備輸出之一影像晝面. ❹ 圖5是一示意圖，說明將干擾影像與預備輪出 , 像晝面疊合後的一干擾畫面； ~ 圖6是一示意圖’說明一干擾影像的型式； 圖7是一示意圖，說明一干擾影像的型式； 圖8是一示意圖，說明一干擾影像的型式；及 圖9是一示意圖’說明一干擾影像的型式。 11 200939109When the color is black, the color output of the corresponding pixel of the pre-transmission (four) image plane is black; (4) when the color of the corresponding pixel of the interference image is white, the color of the corresponding pixel of the image to be outputted is the original output. The color. In short: that is, the drive g 3 displays the interference picture in the portion where the interference image is black: it is black' and the interference picture is displayed as the preliminary output image picture in the portion where the interference image is white. Although the interference picture of Fig. 5 has some black spots, and the user will feel that the picture flickers when the update frequency of z is deleted, the user can still see what the original picture is due to the relationship of the persistence effect of the visual. For the screen capture program that attempts to intercept the picture data, since it captures the picture data at a lower frequency, the fragment still picture obtained by the picture has similar noise interference and is difficult to recognize. | Small tt / eve black stripes and most white stripes, these black stripes and white stripes are horizontal and parallel to each other 'Drive 3 also produces the interference image at a frequency of 60 Hz. The interference image is perpendicular to the black stripes. The direction of movement - a graph, so that the next interference image and the pre-interference image in the # straight direction - a pixel; 9 200939109 However, the interference image generation method does not have to be along the direction perpendicular to the black stripe - the map In fact, as long as the movement of a pixel in a direction parallel to the black stripes and white stripes is parallel to each other, the effect of interference can be achieved. The interference effect of the movement of the vertical direction of the black and the black stripes is optimal. Fig. 7 shows another interference image which is similar to Fig. 6 in that black stripes and white stripes are formed in the vertical direction, and are produced in the same manner as in Fig. 6. > Figure 8 and Figure 9 are not another type of interference image, which is composed of oblique parallel © & black stripes and white stripes, and Figure 9 is composed of non-parallel black stripes and white stripes. The width or length of black stripes is not the same. Therefore, there are many variations in the interference image. This embodiment is only limited to a few examples, and is not limited thereto. Further, the width of the black stripes of Figs. 6 to 9 can be set by the user through the display mode setting interface 6. It is worth mentioning that, as shown in Fig. 5, only one type of interference image is superimposed. However, the above-mentioned plurality of interference images can be selected by two or more to be simultaneously superimposed, and such interference effect is better. As described on the ® 35, the dry (four) image is generated at the frequency of the current day, and the interference image is mixed with the image of the preliminary output, so that the static image of the segment captured by the screen capture program has similar noise. It is difficult to identify, and the user's confidential information is prevented from being intercepted, so the object of the present invention can be achieved. However, the above description of the preferred embodiments of the present invention has been made to limit the scope of the invention, and the simple equivalent changes and modifications made by the scope of the invention and the description of the invention, All still 10 200939109 is within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure of a preferred embodiment of an electronic device for preventing the interception of face data; FIG. 2 is a view of the display device of the electronic device according to the present invention. The flow of the intercepted method; FIG. 3 is a schematic diagram illustrating a type of interference image; FIG. 4 is a schematic diagram illustrating one of the preliminary output images. ❹ FIG. 5 is a schematic diagram illustrating the interference image and the preparatory wheel , an interference picture like a superimposed picture; ~ Figure 6 is a schematic diagram illustrating a type of interference image; Figure 7 is a diagram illustrating a type of interference image; Figure 8 is a schematic diagram illustrating an interference image Type; and Figure 9 is a schematic diagram illustrating a pattern of interference images. 11 200939109
【主要元件符號說明】 1 顯示器 2 控制器 21 核心處理單元 22 顯不貢料緩衝區 23 影像合成單元 24 輸出資料緩衝區 3 驅動器 5 應用軟體 6 顯示模式設定介面 7 顯示模式設定函式庫 91-93 步驟[Main component symbol description] 1 Display 2 Controller 21 Core processing unit 22 Display buffer 23 Image synthesis unit 24 Output data buffer 3 Driver 5 Application software 6 Display mode setting interface 7 Display mode setting library 91- 93 steps
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