TW535406B - Method and apparatus to determine ""original"" copyright infringer of web documents via content transcoding - Google Patents

Abstract

Upon receiving a request for a document, recipient-specific identifying information for the requester is secured, including at least the TCP/IP address(es) of the client being utilized by the requester and the proxy, if any, transmitting the request from the client, and optionally including client authentication information such as userid and password or HTTP request header information such as authorization header information, ""From"" header information, proxy-authorization information, and user-agent header information. The recipient-specific identifying information is then compared to a watermark database for the requested document. If a match is found, the associated unique watermark is retrieved from the database. If no match is found, a unique watermark is generated for the document and associated with the recipient-specific identifying information in a new entry within the watermark database for the document. The watermark is employed to generate a uniquely watermarked version of the requested document, with the watermarked version being returned in response to the request. Subsequently, when an infringing copy of the document is located, the infringing copy is compared to the original, unwatermarked version of the document to extract the watermark. The extracted watermark is then looked up in the watermark database for the document to determine the ""original"" copyright infringer, and the associated recipient identifying information is retrieved.

Description

535406 V. Description of the invention (1) mu Background of the invention The outline of the present invention is specifically about the content of use: Cui, identification of the person responsible and the victim. More specifically, this "p to determine π original" copyright infringement "hidden" receiver exclusive information ς = = content transcoding to lose people 2 · Relevant technical descriptions · · 7 内 ° Economic production from many industries It is very important to copy the content of the right, convert Γ and / or the value of W to prevent the payment of 2 special broadcasts without the age of 198 years. In the case of several thousands of copyright holders of the 1998 Act, there were only significant restrictions on online field service providers. It is expected that the responsibility of the copyright infringement of the service maker is subject to Article 2 of the iOS-SiU, named j: 〇 ’] Digital Millennium Copyright Act (Public Law

Infringe_t Uabllity Ll. Coypy U.S.C. §512. Ulty Umitati〇n ", and codifying it is usually easy to determine where the infringing material is located (for example, at the donor) ', but to determine the original copy of the infringing material: the infringing material can be obtained from the online service provider. Or make payment difficult. Although copyright owners can obtain federal law =

I am, not only that this is a time-consuming process, but "make it work: too likely to succeed. Therefore, it is necessary to use technology to avoid copyright infringers in this way. T error is to find the" original "by copying ίΙ m page 8 535406 V. Description of the invention (2) There are currently some methods to detect copyright infringement by checking the copy, including some complicated methods to track any conversion of the content. However, these existing methods are used to protect It is extremely difficult to obtain substantial monetary compensation for copyright, as these methods cannot distinguish between "intentional" infringers, or individuals who initially infringed by publicly disseminating content, and "unintentional" infringers, or, although technically infringing on copyright, However, individuals who accidentally copy or store files without malicious intentions (such as online service providers). Because only certain types of "unintentional" infringers can only obtain limited damages, so only for "intentional" infringers To obtain significant compensation and damages. Therefore, it is very useful to distinguish between π intentional π and π unintentional π infringers in detecting copyright infringement. In addition, with the proliferation of various popular devices, web content is often transcoded into a format that is different from the original content being generated. This is usually used to facilitate display on devices with limited display capabilities, such as P a 1 m and Win d CE devices, radiotelephones, etc., but not for additional transmission by the receiver. To reduce legal liability, the transcoding server needs a mechanism to detect copyright infringers of the transcoded output, especially when the owner of the transcoding server does not own the copyright that was transcoded and transmitted to the dependent original material. Therefore, it is best to enable the detection of π original π copyright infringers of network files. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a method, system 'and computer program product to identify individuals who are responsible for copyright infringement. Another object of the present invention is to provide a method, a system, and a computer program product.

535406 V. Description of the invention (3) The product 'is the content of another product of the present invention, with exclusive information inside. Now, if the request is made, the request contains at least the requester (etc.) TCP / IP bit contains the subordinate authentication headers, such as authorization information, identification information, and the request. One uses watermarking to determine the second goal is to provide one party with transcoding in one. The original M copyright infringer of the file. Method 'system, embedded with the "hidden" receiver in the computer program watermark, and how to reach the receiver and agent of the aforementioned one, address' agent information, for example, if one of the documents authorized by the header user agent matches, The library retrieves the match, then the message. The watermark returned for the comparison of the infringing copy is identified once and when the watermark for the piece is a watermarked version, water is extracted to determine the information received by reading the target file and a print database is used to generate the copy. In response to infringing copies and seals. Then set the original π to the extraction. List the detailed written, characteristics, and unique identification of the target. If the user information is stored and transmitted, the header watermark is responsible for the unique water. ° Once the information is present, the subordinate identification and " Source π information. Double unique watermarks in the repository, and a request for a new entry for the new entry. This file is a copyright infringement that describes one of the advantages. Then, the original watermark victim receives a capture of a file. Take, which includes the request used by the subordinate, and optionally the password, or the HTTP request header information, and the agent then uniquely identifies the comparison to the receiver. If a seal is found. If no match is found that makes the unique watermark relevant to the receiver Unique identification watermark version, and when one of the files is found, the torn watermark version is searched and extracted from the database, and the relevant recipients should be able to understand the brief description of the aforementioned drawings of the present invention

535406 V. Description of the invention (4) The novel features believed to be the features of the invention are set out in the scope of the attached patent application. However, when reading the following detailed description of an exemplary example with reference to the drawings, it should be easiest to understand the present invention itself, as well as a preferred mode of use, other objectives and advantages of the present invention, of which: FIG. 1 shows a data processing system network Figure 2A-2B is a data flow diagram of a program according to a preferred embodiment of the present invention. The program uses receiver-specific information to embed a watermark on a network. File; Figure 3 is a high-level flow chart of a program according to a preferred embodiment of the present invention, the program embeds a watermark in a file to determine the original copyright infringer; and Figure 4 is a preferred embodiment of the present invention A high-level flowchart of a program that uses an infringing document to determine the original copyright infringer. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, and in particular to FIG. 1, a data processing system network is shown, and a preferred embodiment of the present invention can be constructed. The data processing system network 102 includes one or more servers 104-106 and one or more slaves 108-1 10. Servers 1 04-106 are used with slaves 108-110, for example, Transmission Control Protocol / Internet Protocol f (TCP / IP) for data transfer, interchanged via Internet 1 1 2 according to known techniques Data, such as Hypertext Transfer Protocol (Η TTP) requests and responses, or Hypertext Markup Language (HTML) data, and accompanying graphic images or sound data. One or more slaves in the data processing system network 102, such as slaves

Page 11 535406 V. Description of the invention (5) 11 〇 ′ contains a browser application for requesting one of the files of the World Wide Web (“www” or just “Internet”) file. The data from the server 丨 〇 4 or 106 to the slave 1 1 〇 can be transcoded by the transcoding server within the server 104 using η 6. The transcoding server application 1 1 6 embeds a water file containing the receiver's exclusive information in the requested network file in one way, and this method will be explained in more detail below. Yiming 'see Figures 2 Α and 2 Β' according to a preferred embodiment of the present invention, a flow chart of the program is shown, wherein the program uses receiver-specific information to: two watermarks in a network file. In the present invention, submit a target file from 针对 nine (pass! Yes, but not necessarily, Ηττρ request >, and all of the article goes to the server of I 'than 7). Contributing to the source content Documents in the device _M & 疋 Steering and guidance through a transcoding proxy server, and the transcoding proxy server cries, ^ ^ ^ ^ Han Han won W and may become a different necessary if necessary 'transcoding The watermark within the document X is within the request1. However, the transcoding proxy server will always add one as the basis, and the connection =, and the watermark contains or is based on the IP address of the receiver's exclusive information. Usually it is the requester, subordinate ci, the transcoding agent feeds the service, used to extract the user's email address), and represents V. Information (usually an agent

Page 12 and optionally: / Get slaves from file request / Agent TCP / IP messages are currently used to get slave information for t slave verification. Obtained subordinate information code, but not limited to the subordinate user identification and secret number of this Fuci ^ Ding browser, if available for Xun Er unique processor or network adapter identification server to analyze HTTP 喑 $ Yes, it is also available. In addition, the transcoding agent uses digestion and storage; Π), for example: "Authorization" header information 535406

Message 'and user-agent header information (this information is obtained from the browser's sign-in space). Once the transcoding proxy server obtains receiver-specific information required for the watermark, the transcoding proxy server retrieves document X from the source server. The transcoding agent feeder then generates a unique watermark W1. There are many methods available to embed digital watermarks in documents, images, digital video, etc. for electronic detection of copyright violations. Usually this technology changes the information provided to the recipient by attaching or embedding additional visible or subconsciously invisible information to the transmitted content to establish the identity of the owner of the data. Many of these methods provide changes that seek additional conversion of content. The current method can reasonably and accurately detect copyright infringement by examining the copy. Some sample patents related to watermarking, that is, generating a watermark corresponding to the owner of the content: US Patent 5, 82 5, 892, named

Protecting Images with an Image Watermark ''; U.S. Patent No. 5,809,139 'named " Watermarking Method and Apparatus for Compressed Digital Video "; U.S. Patent No. 5,825,892' name named ninvisible Image Watermark for Image VerificationM; And US Patent No. 5,825,892 'named' Systems and Methods for Secure Transavtion Management and Electronic Rights Protect ion '. The choice of appropriate watermarking will, to some extent, depend on the content of the request (eg , Images, compressed digital video, audio, etc.) Most existing watermarking algorithms can be modified for use in the present invention, as long as the method allows a sufficiently large number of unique watermarks to be affected.

Page 13 535406 V. Description of the invention (7) Produced. In order to demonstrate the present invention by an actual watermarking algorithm, the method of the U.S. Patent No. 5, 8 2 5 and 8 92 is modified as described below, and the patent is mentioned here for reference. U.S. Patent No. 5, 8 2 5, 8 9 No. 2 attaches a subconscious invisible watermark to the image, usually depending on the degree of texture variation of the image, with a modulation intensity of 1% to 3%, of which the watermark is suitable for most additional or subsequent Image conversion. This proposed method produces a watermark plane that follows the specified modulation intensity range so that the watermark remains invisible. Each component of the watermark plane is selected = a random value is assigned, and the random value is based on a robust random sequence and the intensity modulation of the :::. The components of the watermark plane are connected to the image element. In essence, this method uses a height-following multiplier to embed a watermark on a -digital or digitized image, and uses the four strong watermarking parameters to form the number. π does not choose, and only the marker knows the four watermarks, y, and s, and the number of unique watermarks generated by t :: is very large. Among them, 夂 unique watermarks are all affected by: Watermark 4 paper mysterious watermark is a method for "receiving ::; ..." of the recipient household, once the invention is not limited; the method of generating any other printed texture that can generate a lot of unique watermarks Image :: The unique watermark can be, for example, contained in the text: ΐ 印 化 气 Nelia can be produced according to the recipient > ± Fen / $ 々 人 for the flood and the audio file fortunate > α + Yayoi and / Or modify, with oblique m horses, so the method is extended. 4 see

Page 14 This " Mid-month 'transcoding proxy server produces ~~~ belongs to c 1 pin 535406 V. Description of the invention (8) One of the requests for file X is a unique watermark W1 and one of the unique watermark versions of file X. The unique watermark ~ „and the receiver-specific information of the slave ^ are then added to one of the databases of piece X. Although shown in the display example, it is maintained on the source server together with document X, and the watermark database of the receiver of document X is another / External can be maintained on the transcoding proxy server, or a completely separate device. Then, the document version XW 1 is sent back to the slave C1 in response to the invasion of the document, the second version X-Wi looks and / Or it sounds similar to the original two pieces χ ', but σ errors are distinguished by careful analysis to capture the watermark W 1.', Figure 2B shows the generation from a different slave cn < Jingjing, the watermark is used to mark Version X jVn of document X. The watermark Wn, and the subordinate Γ々 ... are sent back to the database of 彳 < Cn, piece X. The document χ ^ ° is stored in the text, the original of file X, without watermark One copy of the content is restricted, and therefore contains: the corresponding input items for γ, the subscripts of the subordinates receive the superscript 'and the generated watermark version are transmitted to the subordinates. Because of the exclusive information, its Chinese ^ ^ individual documents Copy, save, save ,,,,,, There are watermarks instead of repairs, which can be greatly reduced. The size of the file database is shown in Figure 3. Please refer to Figure 3. According to the present invention-the second flowchart is shown. The program embeds one of the best examples of the program. The ρ is determined in a file by the original: pin?;: Of the file, and: two Γ: 3: come: step 3 ° 2 exhibition, then proceed to step 304 to enter the watermark for the script exclusive Identification information, y ~ 304 display the recipient address, subordinate verification information (etc.) subordinate / agent ^ / ”bit

For example, user identification and password 'and / or HTTP 535406 5. Invention Description (9) Message' For example = header information, "source" header information, proxy cry 5fl, and user agent header information. If not, go to step 30 6 and step 3 ° 6 to show that the check database is the "requested file": to determine whether the recipient has unique identification information ^ database, and the receiver proceeds to step 3 08 and step 30 8 to display the decision. Recipient i: A match was found in the poor library related to the identification of the receiver ’s exclusive identification information for the request for the document. If the answer is yes, then go to step 310, where step 310 displays the captured spear order identification information Watermark, and then proceed to step 314 ,. If the file matches the information in Step 3 008 in the Becocourt library & & information, this program advances to Cobb Library ^ present; Receiver-specific identification-unique watermark, increase the unique; /: 31, show the generated seal m ί 5 ί special bexun related to the generated watermark in the document database borrow step 314 'Step 314 shows the use of the unique copy, U ? 'No watermark version to generate the watermark of the requested document: and then send the text file to t: take it from the library or generate it according to the request, go to step 316 / 牛步 31 / 展-seeker. This program then advances the file The request is /. ^ 316 show this program becomes idle until receiving another _流 ί Ξ G4 exhibition is based on: one of the best examples of Λ-the higher-order rights infringement of the program ^ ^, the sequential use of-infringing documents to determine ^ original copyright 2 starts at step 40 2 and step 40 2 shows find one Go to step 4 ° 4, step 404 display. Infringe ,,,, and extract the watermark embedded in the infringing file. This program 535406 V. Description of the invention

Then proceed to step 406, step 406 display to find the original text in the database, ^ take watermark 'and then proceed to step 408, step 408 display, when looking for the exclusive in the document database Identification resource m. ]: When matching ... The watermark of the extracted watermark shows that the program becomes idle. This sequence then proceeds to step 410, which is worth noting *, step 2: Until another-infringing file is found. And / or the network to explain that Shi Ran has always understood that a full-featured data processing system, the invention of this invention, but those familiar with the technical field should be able to use the mechanism to be in one of various types of computer-usable media The type of instruction to disseminate, and regardless of the signal

What is the specific type of the carrier medium? The present invention is equally applicable. Examples of computer-usable media include: non-volatile 'hard-coded media, such as read-only memory (ROM) or erasable, electrical programming read memory (EEPROM), recordable media, such as ratchet disks Movies, hard drives and CD-ROMs, and transmission media such as digital and analog links. Although-Directly referring to a preferred example to specifically show and explain the present invention, those skilled in the art should understand that without departing from the spirit and details of the present invention, ^, the type of the present invention and details can be implemented Various changes.

Claims (1)

535406 VI. Scope of Patent Application1. A method for marking a document, including: receiving a request for a document; obtaining the recipient's unique identification information for the request; generating a unique watermark for the document; making the generated watermark relevant to the Recipient-specific identification information for a database of documents; and using the generated watermark to generate a watermarked version of the document. 2 · The method of claim 1 in the scope of patent application, further comprising: returning a watermarked version of the document to the user who submitted the request. 3. The method of item 1 in the scope of patent application, wherein the step of obtaining the unique identification information of the recipient of the request further comprises: obtaining a TCP / IP address of the slave that initiated the request; and obtaining a transmission from the slave The TCP / IP address of the requesting proxy, if any. 4. The method according to item 1 of the scope of patent application, wherein the step of obtaining the unique identification information of the recipient of the request further comprises: obtaining subordinate authentication information, which includes a user identification and password. 5. If the method of the scope of patent application is applied for, the step of obtaining the unique identification information of the recipient of the request further includes: obtaining HTTP request information, which includes authorization header information, `` source π header information, agent Authorization information, and user agent header information. 6. The method according to item 1 of the patent application scope, wherein the step of generating a unique watermark for the document further comprises: generating a watermark plane having a pixel modulation intensity of 1-3% Page 18 535406 6. Scope of patent application; and Add the information of the watermark plane to the document. 7. The method according to item 1 of the scope of patent application, wherein the step of generating a watermarked version of the document using the generated watermark further comprises: using the watermark to modify the document, wherein the watermark cannot be detected by observing or listening to the document. 8. A method of determining an original copyright infringer, including: in response to finding a unique watermarked version of a document, comparing the watermarked version with an original, unwatermarked version of the document, to extract one from the watermarked version Watermark; || Compare the extracted watermark with the watermark of one of the database's database; and in response to finding a match between the extracted watermark and one of the database's watermarks, retrieve recipient identification information related to the database's matching watermark . 9. A system for marking a document, comprising: a device for receiving a request for a document; a device for obtaining unique identification information of a recipient of the request; a device for generating a unique watermark for the document; a device for making the generated watermark Recipient-specific identification information related to a database of the document; and a device that uses the generated watermark to generate a watermarked version of the document. 〇 1 0. If the system of item 9 of the patent application scope further includes: returning a watermarked version of the document to the device of the user who submitted the request. 1 1. If the system of item 9 of the scope of patent application, in which the request is obtained Page 19, 535406 VI. The device for patent-specific recipient-specific identification information further includes: a device to obtain a TCP / IP address of the subordinate that initiated the request; and a device to obtain a request to transmit a request from the subordinate The TCP / IP address of the proxy, if one exists. 1 2 · If the system of item 9 of the patent application scope, wherein the device that obtains the unique identification information of the recipient of the request further includes: a device to obtain subordinate authentication information, including a user identification and password. 1 3 · If the system of item 9 of the patent application scope, wherein the device that obtains the unique identification information of the recipient of the request further includes: a device to obtain HTTP request information, which includes authorization header information, π source π header information , Agent authorization information, and user-agent header information. 14. The system according to item 9 of the scope of patent application, wherein the device for generating a unique watermark for the document further comprises: a device for generating a watermark plane, wherein the watermark plane has a pixel modulation intensity of 1-3%; And means for adding the watermark plane to the data of the document. 1 5. The system according to item 9 of the scope of patent application, wherein the device using the generated watermark to generate a watermarked version of the document further includes: a device that uses a watermark to modify the document, wherein it is impossible to detect by observing or listening to the document Out of watermark. 16. A computer program product located on a computer-usable medium and used to mark documents, including: Page 20 535406 VI. Patent application scope Receives a request for one of a document's request; Gets the recipient's unique identification information for the request; Generates a command for a unique watermark of the file; Commands to make the generated watermark relevant Receiver-specific identification information in a database of the document; and instructions for using the generated watermark to generate a watermarked version of the document. 17 · If the computer program product under item 16 of the patent application scope further includes: an instruction to return a watermarked version of the document to the user who submitted the request. 1 8 · If the computer program product under item 16 of the patent application scope, wherein the instructions to obtain the identification information unique to the recipient of the request further include: Instructions to obtain a subordinate TCP / IP address that initiated the request ; And an instruction to obtain a TCP / IP address of an agent transmitting a request from the slave, if one exists. 19 9. If the computer program product under item 16 of the patent application, the instructions for obtaining the identification information unique to the recipient of the request further include: instructions for obtaining subordinate authentication information, including a user identification and password. 2 〇. If the computer program product under item 16 of the patent application scope, wherein the instructions to obtain the unique identification information of the recipient of the request further include: instructions to obtain HTTP request information, including authorization header information, π source π header information, agent authorization information, and user agent header information. Page 21 535406 VI. Scope of Patent Application 2 1 If the computer program product of scope 16 of the patent application, the instructions for generating a unique watermark for the document further include: an instruction for generating a watermark plane, where the The watermark plane has a pixel modulation intensity of 1-3%; and instructions for adding the watermark plane to the data of the document. 2 2. If the computer program product under item 16 of the patent application scope, wherein the instructions using the generated watermark to generate a watermark version of the document further include: instructions for using the watermark to modify the document, which cannot be observed or Listen to the file to detect the watermark. Page 22