TW529281B - Method and system to uniquely associate multicast content with each of multiple recipients - Google Patents

Abstract

Methods and systems are disclosed in which contact can be safely distributed and protected in a manner that is viable in terms of bandwidth economy and ensures that clients can be identified by the content received. Copies of encrypted content can be provided such that unique watermarks can be added to the copies. Content can also be both watermarked uniquely for multiple clients and multicasted to the clients. As such, content can be distributed using the bandwidth efficiency of multicasting while providing reliable content protection and watermarking.

Description

529281 A7 B7 V. Description of the Invention (1) Method and system for uniquely combining multiple transmission contents with each multiple recipient Related application [0001] This application is related and claims to be filed on March 6, 2000 , A method and system named π for providing a copy of a scrambled content with a unique watermark, and a system for unraveling the scrambled content • 'European Patent No. 00200793. 8', which is incorporated herein by reference as For reference. This application is also relevant and claims the priority of provisional patent No. 60 / 218,031 filed on July 12, 2000, entitled "Method and System for Uniquely Combining Multiple Transmissions with Each Multiple Recipient" " It is incorporated herein by reference. Field of the Invention [0002] The present invention is generally related to data processing. The invention is particularly related to "pi plus watermark" or uniquely identifying content. The present invention is particularly related to methods and systems that uniquely combine multiplexed content with each multiple recipient. BACKGROUND OF THE INVENTION [0003] Today, text, sound, and video content ("content") can be transmitted using a number of techniques. For example, a server on the Internet can send video clips to many users. This process is often called " streaming. &Quot;. However, there are some challenges in grouping content on the Internet. One challenge is the protection of content. The challenge of content protection is about preventing illegal copying and distribution of expensive content. Another challenge is bandwidth economics. The challenge of bandwidth economy is related to delivering content within a limited bandwidth. [0004] One method of content protection is to add a watermark. The floating watermark is a -4- this paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 529281 V. Description of the invention (2 types of cats, ^ #, contention information (floating Watermark) is improperly embedded in the content. That is, if you try to remove it, it may cause all or part of the original content to be lost. The watermark is a _insert "rubber stamp with a unique signature identification mark. (Nibber-stamping) form,… u package ~ frame. Crying for feeding clothes that have a watermark on the Internet; + t and g, usually the server must ship a different watermark for each user. 庶& > &. Therefore, there are only the disadvantages of the watermarking process ^ The parent in Fenzhong must uniquely add a watermark for each user or entity whose content will be distributed. To pull ^ 1 right to receive this The number of internal users is huge, and the watermarking process will require bandwidth and is very complicated for the server. [0005] Another r — ^ inner valley coding or chaos of content protection. For example: To prevent unauthorized copying of content (_th〇nzed C0pying) The internal end can be encoded with one or more golden keys, and then decoded by the user with the correct Jin Yu accessing the content. The disadvantage of only encoding the content is that after the content is de-encoded and descrambled, the content It may still be copied unauthorizedly. In order to find unauthorised ㈣ 贝 来 # 'fmgerpnnt or watermark can be added to the content to indicate that the copyright of this content is protected. One problem with adding a watermark to encode content is: Before adding a watermark, you need to interpret the content. Therefore, if you encode the content, you cannot access the content. In addition, adding a watermark and interpretation requires a lot of processing power. [0006] One of the methods to deal with bandwidth restrictions Multi-Send. Multi-Send is the process by which a single server sends content to multiple users at the same time. For example, a server on the Internet can send clipped images to many users at one time. Therefore, a single server can The server or the network does not become too congested to deliver content to many users. The disadvantage of only multiple transmission is -5-This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 29 7 mm) 529281 V. Description of the invention (3: It is difficult to protect multiple transmissions. For example, multiple transmissions are not the same as the existing watermark technology, because multiple transmissions are dependent on all users receiving exactly the same Data. However, Likou ,, Xuanshi ~ ... Two ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, and ,, "Marks" are attached to the user. The Internet is spreading, and the video data exists—these two questions are about bandwidth limitations and ensuring that content is protected or identified. SUMMARY OF THE INVENTION [_7] According to an aspect of the present invention, a method for encoding a copy having at least a part of content of a first watermark is disclosed. A copy of at least a portion of the content with the second watermark is encoded. For individual users, part of the coded copy with the first watermark and part of the coded with the second watermark are combined in a unique way. [0008] According to another aspect of the present invention, a method for adding a first and a second copy of a content to a watermark with respective first and second watermarks is disclosed, and a first copy of a guest is encoded using a first key , And the second copy of the content uses the first gold surplus encoding. The first copy after encoding is a false translation of Deyi /, 夂 < Mi Yize himself and a single data stream. [0009] Other features and advantages of the present invention will be more apparent from the accompanying drawings and detailed descriptions that follow. ^ Brief description of the drawings [0010] The present invention is described by way of example and accompanying drawings, subject to this limitation, in which similar references in the drawings represent similar elements, and [0011] Demonstration of an invented network environment.

[0012] FIG. 2 illustrates the encoding of content according to a specific embodiment. The paper size applies the Chinese National Standard (CNS) A4 specification (210 x 297 mm) gutter 529281 A7 B7 V. Description of the invention (4 ) Method diagram; [0013] FIG. 3 depicts a block diagram of the content server allowing users to communicate with the encoded content according to a specific embodiment; [0014] FIG. 4A describes the process of providing encoded content operation according to a specific embodiment [0015] FIG. 4B depicts an operation flowchart for interpreting coded content according to a specific embodiment; [0016] FIG. 5 depicts watermarked content for single transmission key and multiple transmission encoding according to a specific embodiment [0017] FIG. 6A depicts a flowchart of creating a single data stream with encoded content; [0018] FIG. 6B depicts a flowchart of distributing keys and a single data stream in FIG. 6A; [0019] FIG. 7 illustrates implementing the exemplary video frame in FIG. 6A; and [0020] FIG. 8 illustrates a block diagram of an exemplary digital processing or computing system in which the present invention may be implemented. DETAILED DESCRIPTION [0021] The present invention discloses a method and system that can be safely and securely distributed and protected and economically bandwidth protected and guaranteed that the customer can be identified by the received content. In a specific embodiment, encoded copies are provided to enable unique watermarks to be added to these copies. In another embodiment, a unique watermark can also be provided for multiple users and multiple transmissions to the client. In this way, with reliable content protection and watermarking, content can be distributed using the bandwidth efficiency of multiple transmissions.

Binding

The size of the thread paper is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm). Description of the invention (5) or identified and specified in the watermark and a solution to compile a lot of obvious inventions [0022] In the following description 'floating watermark It is related to the identifier (Η—) signature. For example, the identification number and identification mark can be copyrighted material. The watermark can be used to identify the origin of the data or the identity of the user / user / customer of the data. In addition, Jiafu is related to the process of encoding content in this way.

Unique translations are still produced after coding. In addition, Liang 7 A explained the purpose of

The detailed description provides a thorough understanding of the present invention. However, for those who are familiar with this technology, it is possible to achieve it without some specific instructions. Exemplary Network Environment [0023] FIG. 1 depicts a 7f example of a network environment 100 in which the present invention can be implemented. Referring to FIG. 1, the content server 104 communicates with a large number of users 1 (10H) to N (101-N) via the network 102. In a specific embodiment, the network 102 is the Internet. The Internet is a worldwide Internet system that implements the Internet Protocol (IP) to transmit data (such as packets). In another specific embodiment, the network 102 may be any other form of network, such as a token ring network, a local area network (LAN), or a wide area network ( wide area network (WAN). The network 102 may be implemented in a wired or wireless environment. [0024] The content server 104 is a network element for communication on the network 1 () 2. In a specific embodiment, the content server 104 is a general-purpose computer similar to a web server. In another specific embodiment, the content server 104 includes a network router, a switch, a bridge, a gatev / ay, or other similar network elements. -8- 529281 A7 _____ B7], invention description (β ~~) " '-6 communication on the network 102. The content server 104 includes a media server unit 108 coupled to a content storage 106. The content warehouse 106 is a hard disk, a CD player, a digital video disc (DVD), a random access memory (RAM), and a dynamic random access memory (dynamic random access memory). random access memory) or other similar element that stores the distributed content. [0025] In a specific embodiment, the media server unit 108 is a processing element that processes instructions or implements code that operates in the media server unit 108. In another embodiment, the media server unit 108 is hardware and / or software that achieves the same purpose. The media server 108 recovers and processes the content stored in the content repository 106, and distributes the content to the users 1 to N. The content stored in the content repository 106 may include video and / or audio data or other similar types of data. For example, Inner Valley may include Moving Picture Experts Group (MPEG) data. In a specific embodiment, the media server unit 108 operates according to the processing technology described in relation to Figs. 2, 3, 4A and 4B. In another embodiment, the 'media server unit 108 operates in accordance with the processing techniques described in relation to Figs. 5, 6A, 6B, and 7. [0026] The users 1 to N may be general-purpose computers that receive Uchiya from the content server 104 via the network 102. Alternatively, users 1 to N may be another content server such as content server 104. For example, users 1 to n may be personal computers, workstations, laptop computers, or other similar computing elements. The users 1 to N may also be electronic portable components such as a personal digital assistant (PDA), a wireless telephone, or other similar components, which can serve the content via wired or wireless media via the network 102.器 通信。 Communication. Users i to N can include viewing and displaying from the content server 104-This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) '" 529281 A7 B7 V. Description of the invention (7) Its application. For example, users 1 to N may include applications such as Real PlayerTM, QuickTime ™ for replaying video data. Example of providing a coded guest with a unique watermark [0027] The following description of FIGS. 2, 3, 4A, and 4B provides a copy of the coded content with a unique watermark to each of a number of users, and broadcasts the coded content to the users . FIG. 2 depicts a diagram 200 of combining encoded content according to a specific embodiment. For the purpose of explanation, the content is described as "movie content", but it is also likely to be other types of content such as sound recording files. [0028] In a specific embodiment, the content repository 106 includes three copies of movie content. Each copy stored in the content bank 106 memory is coded in an appropriate manner. The first copy 210 which is referred to as " neutral copy " is encoded. The second copy of the content is obtained by adding the first identifier (such as a sequence of "1 " or a more complex two-bit sequence) as the first watermark to at least a portion of the entire content. Thereafter, the second copy 220 Encode in an appropriate manner to obtain a coded copy with the second identifier as the watermark. A third copy of the content is added as the watermark with the second identifier (such as a sequence of " 〇〃 or a more complex two-bit sequence) At least a part of the entire content. After that, the third copy 23 is encoded in an appropriate manner to obtain a coded copy with the second identifier as the watermark. The second and third copies 220 and 230 can be any unique identifier [0029] The watermarked copies 220 and 230 may include a portion of the original movie content. For example, the watermarked copies 220 and 230 may include 1% to 20% of the total movie content. However, all The movie content can use the first and second identifiers as the watermark respectively. In another specific embodiment, -10- this paper size applies the Chinese National Standard (CNS) Α4 regulations Grid (210 X 297 mm) 529281 A7

Can be ignored with Nakahata Takimoto 210. In addition, the copy 210 may be stored on a different storage element or on a different server. [0030] In a specific embodiment, if a user requests movie content from a content server, the media unit server 08 will add a unique watermark to the user. That is, in the example of Fig. 2, the watermark will be a unique identifier with a sequence of unique ones and zeros. Based on this unique sequence, the media unit server 108 will encode the neutral copy 210, the serial number, the first copy of the watermark 22, and the zero sequence as the watermark <the second copy. 230 merge, and transmit this merged content to the requesting user I. As such, the requesting user receives an encoded copy of the user's unique watermark. [0000] However, when the content is interpreted in a non-secure environment of the content server 104, the time code is not necessary. Unique 1 and 0 identifiers and related, user-defined characters can be stored in the content warehouse 1G6 or different storage elements. The internal copy 210 is used to reduce the amount of information stored in the content repository 106. In addition, a scrambled copy of the content can be provided without using the watermark of the neutral copy 21o. [0032] FIG. 3 illustrates a block diagram 330 in which the content server 1 communicates with the user 100 according to a specific embodiment. Figure 1 towel, used; ^ 100 can be user 1 soil NR representative. Referring to Fig. 3, the content server 104 includes a flat horse unit having a connection. The media server unit 108 of the receiving unit 30 of 04 is connected to the spare unit 306. Each of these units may be a different processing element or hardware and / or software operating in the content word Liangzhu 104, which processes instructions or code that perform the operations described herein. -11-^ Paper scale is appropriate for financial matters ~ ---

Binding

Line 529281 A7 B7 V. Description of Invention (9) [0033] The encoding unit 304 encodes the content from the receiving unit 302. In a specific embodiment, the receiving unit 302 can receive content from the content repository 106. In another embodiment, the receiving unit receives content from the network 102 or an external connection such as a cable or modem line. In the standard encoding procedure, the encoding unit 304 can encode the content with a key. For example, the encoding unit 204 may embed a key into the image content stream as an appropriate control message (ECMs) to encode the image content stream. [0034] In a specific embodiment, the watermarking process can be implemented at the user end. For example, the user 100 may add a watermark during the interpretation process to interpret the encoded content from the content server 104. The user 100 can decode the coded content from the content server 104 in the future or store the coded content for later interpretation. [0035] For the purpose of explanation, in the following description, the receiving unit 302 in the user 100 receives the “movie” coded content that will be broadcast to the user 100. Other types of content, such as text or sound content commonly used for communication, can be used. The receiving unit 302 can be programmed to provide double parts or so-called double illuminated parts for many movies. In a specific embodiment, if the movie is compressed, for example, under the MPEG standard, the I-frame or the like is double-lit to maintain low frequency bandwidth. In a specific embodiment, the receiving unit 302 provides a double light emitting portion with a watermark. For example, the receiving unit 302 may add a watermark (or a first identifier) of 0 and a watermark (or a second identifier) of 1 to a selective part of each double-light emitting part. The receiving unit 302 then sends the neutral portion and the dual light emitting portion to the encoding unit 304. [0036] The encoding unit 304 uses the key provided by the key unit 306. Gold -12-

Binding

The size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 529281 A7 B7 V. Description of the invention (10) The key management unit 306 may include one or more storage units to store some funds to unlock the messy content key. In a specific embodiment, the encoding unit 304 uses the first key (key 1) to encode the neutral part to provide a neutral copy 210, and uses the second key (key 2) to add the floating key in a sequence of 1. The watermarked portion is encoded to provide a second copy 220, and the third watermark (key 3) is used to encode the watermarked portion in a sequence of 0 to provide a third copy 230. [0037] The key management unit 306 in the content server 104 includes a key management application so that the user 100 delivers the user keys 2 and 3 in a predetermined manner to receive a copy of the encoded content. The key management unit 306 also allows the user 100 to decode the encoded content from the encoding unit 304. That is, the key management unit 306 provides the user 100 unique key information through the encoding unit 304 to interpret the encoded content with a unique combination, where the unique combination refers to the encoding using the 0 sequence (or the first identifier) as the watermark. A unique combination of part and part of a watermark with a sequence of 1 (or a second identifier). In addition, the key unit 306 can store information about which user receives the unique set of binding methods. In this manner, the user 100 can provide a complete movie content stream with a unique watermark or identifier. Therefore, it is easy to identify the content stream to determine whether the user who is receiving and watching this movie has the right user. [0038] For example, the key management unit 306 may provide the due control message ECM with the key 1, the key 2 or the key 3. During the broadcast of the encoded content, the key management unit 306 provides ECM to each of the users who can obtain a unique combination of 1's and 0's keys at the respective user terminals. In the example of FIG. 3, the key management unit 306 may provide the ECM to the user 100 through the encoding unit 304 or directly using an external connection connected to the network 102. -13- This paper size applies to China National Standard (CNS) A4 (210X 297mm) binding

529281 A7 B7 V. Description of the Invention (11) [0039] The user 100 includes a receiving unit 308 that receives the encoded content from the content server 104. The receiving unit 308 may also receive Jin Yu from the Jin Yu management unit in the content server 104. The receiving unit 308 is connected to the interpretation unit 310, and the interpretation unit 310 is connected to the key management unit 312. Each of these units can be a different processing element or hardware and / or software unit that processes the instructions or program code that performs the operations described herein. [0040] The user 100 uses the interpretation unit 310 to interpret the encoded content from the content server 104. The receiving unit 308 receives the encoded content from the encoding unit 304, extracts the ECM from the encoded content, and sends the ECM to the key management unit 312. The key management unit 312 provides the key to the interpretation unit 310 from the extracted ECM. The receiving unit 308 also supplies the encoded content from the content server 104 to the interpretation unit 310. [0041] In a specific embodiment, the content server 104 provides the ECM with the unique key 1 and the key 2 or key 3 of the user 100. In particular, the key management unit 312 of the user 100 delivers the key to the interpretation unit 310. The interpretation unit 310 uses these keys to obtain pure content with a unique combination of 0's and 1's. In a specific embodiment, if only key 2 is available, only the second watermark of sequence 1 can be interpreted, and if only key 3 is available, only the sequence 1 with the watermark can be interpreted. In this example, the process of adding a watermark to the neutral copy 210 is directly controlled by the content server 104. [0042] In another specific embodiment, the key management program or instruction may be downloaded or permanently stored in the gold loss management unit 312 in the user 100. For example, the Jinyu management unit 312 may include a smart card that provides secure download of programs or instructions. In particular, the smart card can receive packets -14- This paper size is applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) 529281 V. Description of the invention (A7 B7

The ECM includes all the keys (Key 1 to Key 3), and the keys are provided to the interpretation unit 31 in a unique way by the smart card. [0043] FIG. 4A depicts a flow chart that provides an operation 400 for chaotic operation according to a specific embodiment. The initial operation of 400 was started with operation of 402. [0044] In operation 402, a copy of at least part of the content of the watermark is provided with the first identifier (such as a sequence of 0). For example, the receiving unit 302 provides the sequence of 0 to the encoding unit as the content of the watermark. [0045] In operation 404, a second identifier (such as a sequence of!) Is provided as a copy of at least part of the content of the watermark. For example, the receiving unit 302 provides the sequence of 1 to the encoding unit as the content of the watermark. [0046] In operation 406, the sequence of &quot;, and the sequence of &quot;, are encoded as a copy of the content of the watermark. In a specific embodiment, the code sheet 2 304 can encode the watermarked content into three parts, for example, having a neutral copy 210 of unique key 1 and a unique sequence of key 2 as the watermark. The first copy 22 of the encoded content and the second copy 23 of the unique content with the &quot; 〇 sequence of the unique key 3 as the second copy of the encoded content of the watermark. [0047] In operation 408, the first The copies 220 and the second copy 230 are partially combined. In a specific embodiment, a part of the first copy 220 and the second copy 230 is combined with the neutral copy 21o. In another specific embodiment, the first copy 220 and the second copy 230 are combined. Copies 22o and 1st: Part of Copies 23o are combined without a neutral copy 210. The coding unit can achieve the above operation. The coding unit 304 or the key management unit 306 can transmit a unique key (ie, keys 1 to 3) To the user to interpret the content. [0048] FIG. 4B depicts the army of interpreting encoded content according to a specific embodiment

Binding

Line 529281 A7 B7 V. Description of the invention (13) Flow chart of 450. Operation 450 begins with operation 452. [0049] A unique Jin Yu for receiving content server 104 to encode content is received in operation 452. For example, the receiving unit 308 in the user 100 may receive these unique keys. The receiving unit 308 may send these unique keys to the key management unit 312 or the interpretation unit 310 of the user 100. [0050] The encoded content is received in operation 454. The coded content is &quot; double lighted &quot; to indicate that at least part of it is copied or added with a different watermark. For example, the user 100 may receive the coded content of operation 400 through the receiving unit 308. However, the encoded content may be received before the unique key is received in operation 452. [0051] The encoded content is interpreted in operation 456. For example, the interpretation unit 310 can use the received unique key to decode the encoded content from the content server 104. [0052] The following specific embodiments of FIGS. 5, 6A, 6B, and 7 describe methods and systems for uniquely combining multiple delivery content with each multiple recipient. The following specific embodiments describe the encoding &quot; watermarking &apos; procedure, in which, for example, a single video content data stream is distributed to a large number of recipients ("customers") in a manner that allows a large number of unlocked golden loses. Each key interprets the content into a unique form. In a specific embodiment, the content is interpreted once and then distributed to multiple users. To unravel the content and make it viewable, one or more unique keys are required to interpret the content. That is, each unique key will make the final interpreted content unique and watchable for everyone. [0053] FIG. 5 depicts a method for unidirectional transmission of keys in a multi-direction according to a specific embodiment. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 529281 five A7 B7 invention description ( ) 14 Block diagram 500 of content server 104 transmitting encoded content. Referring to FIG. 5, the content server 104 includes a content repository 106 that stores content, where the repository is connected to a server media unit 108. In a specific embodiment, the server media unit 108 includes a watermark adding unit 506 connected to the content repository 106 and an encoding unit 507 connected to the key database 508. Each unit may be a different processing element or hardware and / or software unit to execute instructions or code for performing the operations described herein. [0054] The content repository 106 stores content to be multiplexed. For example, the content repository 106 may store text, audio, and video content. In the following specific embodiments, the content repository 106 stores image data streams. The watermarking unit 506 processes the image data stream in the content warehouse 106. In a specific embodiment, the watermarking unit 506 adds a unique watermark or logo to redundant data (for example, a frame or a packet in an image data stream) as a watermarking process. That is, redundant pieces of data (such as π frame π) are included in the image data stream. A watermark or logo refers to any detectable message that is modified by adding a frame or multiple frames to an image. The watermarking unit 506 sends the frame to which the watermark is added to the encoding unit 507. [0055] The encoding unit 507 encodes the frame to which the watermark is added. In a specific embodiment, since some frames in the video stream are repeated, the encoding unit 507 can uniquely encode each repeated frame. For its part, unique encoding and decoding keys are available and are associated with each redundant frame. The key database 508 may store such keys. The key 508 may include one or more forms of keys that map to unique users / users / customers (πcustomers, '), as described below. In a specific embodiment, the coding unit -17- the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm)

Pretend

529281 A7 B7 V. Description of the invention (15) 507 One-way transmission of unique key from key database 508 to different customers. The encoding unit 507 may also multiplex the encoded and watermarked content to all customers who request to receive the multiplex transmission. In another specific embodiment, the encoding unit 507 may first multiplex the keys and then unidirectionally transmit the keys. [0056] FIG. 6A depicts a flowchart of an operation 600 of creating a separate data stream with encoded image frames. Initial operation 600 begins with operation 602. [0057] In operation 602, the selected frame in the image data stream stored in the content repository 106 is encoded. For example, as shown in FIG. 7, frame 715 represents the original content of the five frames. The watermarking unit 506 can provide a unique watermark for repeated frames. The number of repetitions does not make sense except for the occurrence of repetition, and this repetition allows all parts to be uniquely coded. In the example in FIG. 7, as shown in frame 725, the letter 诘 &gt; is visible at the bottom right of the repeated frame. [0058] In operation 604, the selected watermarked frame and the remaining frame are encoded with a unique key. As shown in frame 735 of Figure 7, the logo frame is encoded using a unique key along with the unique mark. This means that if the logo is unique, the key is also unique. The remaining frames are encoded with a common key. For example, frames marked with &quot; ADA ", &quot; LME &quot;, &quot; XRD &quot;, and &quot; QEW" are coded in unique gold. Unmarked or watermarked frames are coded with universal gold balance. [0059] As shown in block 745 of FIG. 7, block 735 is merged into a single data stream in operation 606. A single data stream (ie, frame 745) can be sent to multiple customers who request it. In a specific embodiment, the universal key is given to all customers. The combination of other keys set to the customer specifies an interpretable frame, so that the logo will be in the customer's interpreted version. In a specific embodiment-18- this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 529281 A7 B7 5. In the description of the invention (16), each customer's unique interpretation key sheet To the customer. [0060] Since the frame may be repeatedly and uniquely marked and uniquely coded, a two-dimensional array of key / signature pairs may be created for any given content item. The width of the array is equal to the number of times a frame is selected as a unique mark, and the depth of the array is equal to the number of times the frame is repeated. [0061] As shown in FIG. 7, in a frame 725, a different frame is selected as a watermark of the logo. Two watermarks or tags are used here, so an array with a width of two is required. In each selection of Bide, each frame is repeated twice, so the required depth is 2. As shown in Table 1 below, the unique Jin Yu is mapped to a 2X 2 array with different marks. Table 1

Box 2 &amp; 3 Box 5 Jin Yu 1 = ADA Golden Loss 3 = LME Key 2 = XRD Key 4 = QEW

[0062] By selecting the key that will be sent to any given customer, it is possible to decide which flags are present in the content that has just been interpreted. For example, the above array has four potential combinations. Therefore, there may be four uniquely identifiable versions after interpretation. The following table 2 shows the combination of different customers and the received gold according to the content in the content. Table 2

In the content of the key received by the customer, De Marco Jinyu 1, Jin Yu 3 ADA, LME Donovan Gold Loss 2, Key 4 XRD, QEW Jin Jinhua 1, Gold Loss 4 ADA, QEW Mary Jin Yu 2, Gold Loss 3 XRD, LME -19- This paper size applies Chinese National Standard (CNS) A4 (210X 297 mm) 529281 A7 B7 V. Description of the invention (17) [0063] By repeating part of the video stream, The image content is encoded in a way that guarantees the uniqueness of the interpreted version. This concept relies on not providing all the keys necessary for customer content items, but only unique key combinations sufficient to interpret the content into a viewable state. [0064] The most common image compression technology requires the use of a key frame (or I frame) as the start of an animation sequence, and this frame is followed by a description of the cases where the remaining frames are continuously different. In a specific embodiment, since the above-mentioned example of adding a watermark requires repeated image frames, in order to provide a method for solving compression, a watermarking engine combined with an image compression engine can be used to determine where the key-frame appears. [0065] FIG. 6B depicts a flowchart of the operation 650 of disseminating the keys and the separate data flow in FIG. 6A. The first operation 650 started from operation 652. [0066] In operation 652, the unique Jin Yu is transmitted unidirectionally. For example, one-way transmission of Jin Yu in Tables 1 and 2 above to one or more users or customers. [0067] In operation 654, a separate data stream with a unique watermark and encoded with a unique key is multiplexed out. For example, as shown in FIG. 7, the frame 745 is multiplexed to one or more users or customers. In other embodiments, the order of operation 652 and operation 65 can be reversed. [0068] Thus, the above operations described in FIGS. 6A and 6B show how to uniquely combine the multiplexed content with each multiplex user or customer. [0069] FIG. 8 is a block diagram of an exemplary digital processing system 800 for a content server or user. For example, as shown in FIGS. 1, 2 and 5, the digital processing system 800 may represent the content server 104. Digital processing system 800 can be stored to make the system -20- This paper size applies Chinese National Standards (CNS) A4 specifications (210 X 297 mm) 529281 A7 B7 18 V. Description of the invention (to complete any operation instructions explained above Digital processing system 800 can also represent users on the network or other types of network components, including a network router, network switch or network bridge or channel device. Digital processing system 800 can also Represents the user of a handheld electronic component, such as a personal digital assistant, mobile component, network device, or any type of machine that executes a sequence of instructions that specify actions that can be performed by the machine. [0070] Referring to Figure 8, digital processing The system 800 includes a bus 808, which is connected to a central processing unit (CPU) 802, a main memory 804, a static memory 806, a network interface 822, an image display 810, an alphanumeric input element 812, a cursor The control element 814, the driving unit 816, and the signal generating element 820. The elements connected to the bus 808 can use the bus 808 to transfer messages and data to each other. In addition, the demonstration One or more of the elements of the bit processing system 800 may be omitted or added. For example, the digital processing system 800 may use one or more memory elements. Line [0071] The CPU 802 may process instructions 826 or through a bus 808 is stored in the main memory 804 or the instruction 826 in the mechanically readable medium 824 in the drive unit 816. In a specific embodiment, the CPU 802 may process and execute the instruction 826 to complete the operations shown in FIGS. 2A, 2B, 6A, and 6B. The described operation. The bus 808 is a communication medium used by the digital processing system 800 to transfer data or messages. [0072] The main memory 804 may be like a random access memory (RAM) or other dynamic storage element. The main memory 804 stores instructions 826 that can be used by the CPU 802. The main memory can also store temporary variables or other intermediate information during the execution of the instructions by the CPU 802. The static memory 806 may be used by the CPU 802 to store messages or instructions Read-Only Memory (ROM) and / or -21-This paper size applies to China National Standard (CNS) A4 (21〇X 297 mm) 529281 A7 B7 V. Description of the invention (19) It is a static storage element The drive unit 816 may be like a hard disk or a floppy disk drive element or optical disk element with a storage instruction 826 of the mechanically-readable medium 824. The mechanically-readable medium 824 may also store other types of information or data. [0073] Image display 810 can be like a cathode ray tube (CRT) and a liquid crystal display (LCD). The image display element 810 displays information or drawing data to the user. The letter and number symbol input element 812 is used to send the message and command selection to digital processing Input elements of the system 800 (such as a keyboard). The cursor control element 814 may be a mouse, a trackball, or a cursor direction key that controls the movement of an object on the image display 81. The signal generating element 820 may be a speaker or a microphone. .

[0074] The digital processing system 800 can be connected to the network 102 through a network interface element 822. The network interface 822 can be connected to, for example, a local area network (LAN), a wide area network (WAN), a ring area network (token ring network), the Internet, or other similar networks. The network interface 822 can also provide different network protocols, such as Hypertext Transfer Protocol (HTTP), asynchronous transfer mode (ATM), and fiber distributed data interface (FDDI). ), Frame relay network or other similar communication protocols. [0075] Therefore, this article has described a method and system for uniquely combining multiple transmission content with each multiple recipient. In the above detailed description The present invention has been described with its specific specific embodiments. However, it is obvious that the different modifications and changes that can be made do not depart from the broad spirit and viewpoint of the present invention in the scope of additional patent applications. Therefore, the detailed description and illustration are merely For the purpose of description rather than limitation. _____- 22-_ This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) binding

Claims (1)

Patent application No. 0112419 ^, Replacement of patent scope (December 91) Patent scope of application 1. A computer-implemented method including: adding at least v ~ with a first watermark, and having a second watermark To 1: copy encoding; unique to different users; two: content copy encoding; and a combination of part 及 γ 丨 and flat code copy with a second watermark watermark encoded copy. 2. As for the electric power of item i in the scope of patent application, please see the current law, where the first and the heart marks include, and the sequence of 0 ", and the-, and the heart / Yu Shuidi one / Yu watermark include" 丨The sequence ,. 3. The method for computer implementation of item 1 of the scope of patent application, which further includes: distributing the merged part to one or more users on the network. 4. The computer-implemented method of item 3 of the scope of patent application, where the network includes the Internet. 5. The computerized implementation method of item i in the scope of patent application, which further includes: encoding a neutral portion of the content; and encoding a neutral copy of the portion in a unique manner for each user, 4 encoded copies with a first watermark And part of the encoded copy with a second watermark. 6. A server comprising: a storage element for storing content; and a coding unit that will have at least a portion of the content of the first watermark <&lt; Part of the transcript is coded and partly has a first 3 watermark (coded copy and part of a coded copy with a second watermark) in a unique way for different users. This paper size fits the financial standards (CNS) A4 ^ i ^ T297 mm) Scope of patent application 7 · If the scope of patent application is covered in Section 6 (a),. "The sequence of the second floating two" "wherein the first watermark package δ. As in the scope of the patent application No. 6, the second sequence of the second sequence". Knot people ^ γ ^ server status, where the server is used to 9 乂 Touch to one or more users on the Internet. • For example, the Internet in the scope of patent application No. 6。 Gen state, where the network includes the Internet10. If the content in the scope of patent application No. 6: "a, The service is' where the coding unit is used to encode the sub-code n female. Each unique method combines the copy of the book, Shao Fen with the first point and the second watermark. ^ A computing system including: means for storing content; and means for encoding at least a copy of a first watermark and at least a copy of a second watermark; And install different users each unique way to place a part with the first &gt; ^ 6.〉 Sub-watermark, '', copies, and Shao Fen coded copies with a second watermark to settle. Package 12: If the computing system of the 11th scope of the patent application, wherein the ~ watermark includes the sequence of "0", and the second watermark includes the sequence of "i", 13: Such as the 11th scope of the patent application scope A computing system, which is more inclusive: It is installed to disperse the combined part to one or more users on the network. 14. If the computing system of the 13th scope of the patent application, the network includes the network-2- This paper size applies to China National Standard (CNS) A4 specification (210X297 mm), patent application network. 15. If you request the computing system of item u in the patent scope, it is also used to award the neutral part of the content. A random device; and a part of a coded copy and a part with a watermark in a unique way for different users. A ^ foot, a flat code copy of a machine-readable medium that provides instructions, and when executed, makes The processor performs the following operations: # processor encodes a copy of at least a portion of the content of the watermark; and encodes a copy of at least a portion of the content with a material mark to use in a unique manner for different users. Part of the coded copy with the first seal and part of the coded copy with the second watermark. A digital processing system including: at least one sub-code for storing the content with the first identifier as the watermark. A copy and a storage element that uses the second identifier as a watermark, two less and one sub-coded copy of the storage element; and,-a processing unit that connects to the storage element and uses a unique method for each user. The processing unit will use the first and second The identifier is combined as a code copy of the watermark. 18. If the digital processing system of item 17 in the scope of patent application, the processing unit will be sent to different users in combination. 19. The digital processing system as claimed in item 17 of the scope of patent application, wherein the first float 17. Water to edit xwxy 早 水 -3- 6. The scope of patent application includes the sequence of "0," and the second watermark includes " β sequence ,,. 20. The digital processing system of item 17 of the patent application park, wherein the software is used to store user identification information and the unique combination of the user's corresponding plus floating p.丨 ~ To the best of 21. The digital processing system of item 17 in the scope of the patent application, wherein the storage element is used to store a neutral scrambled copy of the content. 22. For example, the digital processing system in the scope of patent application No. 21, wherein the processing sheet is used to encode at least a part and part of the neutral coded copy with the first identifier as a watermarked coded copy and part with the second identifier as a floating Combining coded copies of the watermark. 23. —A digital processing system comprising: a receiving module that provides pure content with a plurality of dual parts: the first part with the first identifier as the watermark and the second part with the second identifier as the watermark . An encoding module connected to a receiving module and an encoding module that encodes pure content with a first key. The encoding module uses a second key to encode a first part with a first identifier as a watermark and encodes the The three keys will be encoded with the second identifier as the second part of the watermark; and a key management module for an official key, which allows one or more users to uniquely identify each The first and second identifiers are interpreted as a coded combination of the first and second copies of the watermark. 24. For example, the digital processing system in the 23rd patent scope, where the first identification is -4- the paper size X 297 mm) 〇 ΓΓ Supplement 529Z8T— Α8 Β8 C8 D8 The annual patent application scope includes the sequence of "0", and the second identifier includes the sequence of ",". 25. If the digital processing system of the 23rd scope of the patent application, the coding module is used for A key, a second key, and a third key provide due control messages (ECMs), and the second and third keys are used alternately to obtain each user's unique sequence of “〇” and the sequence of “1” The unique combination of 26. If the digital processing system of the 23rd scope of the patent application, the storage element is used to store the user's identification data and the unique combination of the user's corresponding watermarked copy. M 27 · — a kind of computer implementation A method, comprising: adding a first watermark and a second watermark to the first and second copies of the content; ~ encoding the first copy of the content using the first key and using the second key to A content copy encoding; and combining the encoded copies into a single data stream. 28. The computer-implemented method in item 27 of the scope of the patent application, further comprising: multiple transmission of individual data streams to one or more 29. The computer-implemented method in item 27 of the Patent Scope, including: Stores a unique key and a common Jinyu in a database. The size of the array included in the database meets the unique requirements for unique watermarks. The number of Jin Yu. 30. The method in item 29 of the scope of patent application, further including: selectively transmitting the unique key unidirectionally to the _ or more users. 31. As in item 30 of the scope of patent application The method further includes: combining each user with the unique key received and the watermark in the data stream. The Nianfanli special A BCD word server includes: a storage element for storing content; a processing unit: It uses c. /, 10,000; uses one or more unique watermarks to "redundant" the content Partially add a watermark, use a unique full key for each unique watermark to encode the redundant part of the added watermark, and use a common key to encode the content stream "the remaining part and merge the encoded parts into a single data, cloud 33. Such as The server in the scope of patent application No. 32, wherein the processing order is more than multiple transmission of a single data stream to one or more users. 34. For example, the feeder in item 32 of the scope of patent application includes: — a database storing unique keys and common keys. The size of the array included in the database matches the number of unique keys for unique watermarks. 35. The server in the scope of patent application No. 32, wherein the processing unit is used for selectively unidirectionally transmitting the unique key to one or more users. 36. For example, the server in the scope of patent application No. 32, wherein the processing unit is used to combine each user with the unique key received and the watermark in the data stream. 37 · —A computing system comprising: a device for storing content; a device for adding a redundant portion of content to a watermark with one or more unique keys; a unique key using each unique watermark will be added to the water ^ 1 more than part of the encoding and the device for encoding the rest of the content stream with a common key; and 6- this paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 public) ^ β π myocardial cortex. Please request the computing system in item 37 of the patent, and further transmit the individual asset streams to one or more applications: Including: 39. If the computing system in item 37 of the patent scope is requested, more ^ Device. Storing the unique key and the common key in the asset library ^:: The size of the included array is in line with the second for unique watermarks ♦ ::: The computing system in item 37 of the patent scope is requested if the device is selected The one-way transmission of the unique key to one or more users, such as the computing system in item 37 of the patent scope, including a combined device. 42. A machine-readable medium providing instructions, wherein the instructions, if executed by a process, cause the processor to perform operations including the following: adding a redundant portion of the content to a mandatory print with one or more unique watermarks; ^ To 2 users and receiving_watermarking device in the golden-like data stream. The mouth water uses the unique key of each unique watermark to encode the redundant part of the watermark, and encodes the rest of the content stream with a common key; and combines the encoded parts into a single data stream. 43 · —A method for distributing content, the method includes: first and second pairs of content parts with first and second identifiers 529 ^ kl3. 4 A8 Ββ C8 .- 丨. 丨 丨 丨 丨. ........-- -D8 6. Scope of patent application — —— Watermark is added; the first and second copies of the content part are encoded with at least the first and second keys respectively; Provide the first and second copies of Uchiya 4's definition to the first and second users; and provide at least the first key to the first user and the second key to the first-use I 'such as &amp; -Use | to interpret the first copy with the first identifier plus water P <Nei Shaofen, and the second user can interpret the second copy with the second identifier and watermark content part. 44. The method as defined in item 43 of the scope of patent application, wherein the content includes text, sound or video content. 45. The method in item 43 of the scope of patent application, wherein the provision of the first and second copies and the key includes providing the first and second copies and Jin Yu via the Internet. 46. The method in item 45 of the scope of patent application, wherein the network includes the Internet. 47 · —A device for distributing content, including: a watermarking device for adding a first and a second copy of a content part to a watermark with a first and a second identifier, respectively; An encoding device for encoding the first and second copies of the content portion with the first and second keys; for providing the first and second copies of the content portion to the first and second users; and -8-this paper size Applicable to China National Standard (CNS) A4 specification (210 X 297 public envy) Provide at least the first key to the first user and the second device to the second user's provision device, so that the first user can use the The first copy of the content portion of the first identifier with the watermark is interpreted, and the second user only decodes the second copy of the content portion with the second identifier and the watermark. • For the device in the 47th scope of the patent application, the content of which includes text, audio or video content. • The device in item 47 of the scope of patent application, in which the providing device for providing the first and first copies of the key and key includes the providing device for providing the first and second copies and Jin Yu via the Internet. • The device in item 49 of the scope of patent application, where the network includes the Internet. A machine-readable medium providing instructions, where the instructions, if executed by a processor, cause the processor to perform operations including the following: first and second copies of the content portion with first and second identifiers, respectively Add a watermark; encode the first and second copies of the content portion with at least the first and second gold coins respectively; provide the first and second copies of the internal customer share to the first and second users; and At least a first key is provided to the first user and a second key is provided to the first user, so that the first user can interpret the first copy of the content portion with the first identifier and watermark, and the first Only two users can interpret the second copy of the content part supplemented with 5Ι9ΊΕΓ and applying for the first patent application, the fourth patent application, and the floating watermark. 52 · -A method for distributing content, the method includes: adding multiple sets of content copies of a content part to a watermark with multiple sets of identifiers, and for a special copy content part, each identifier in each set All are unique; ΛXi Yuyu ’s individual Jin Yizhi encodes the contents of each copy in each group; provides Neigu Shao with multiple sets of copies to multiple users; and from many keys A unique key set is selected for each multi-user, so that each multi-user can partially interpret the content of the multiple sets of copies to generate content that embodies the unique identifier sequence. 53. The method of claim 52, wherein providing multiple copies of the content portion includes multiple transmissions of multiple copies of the content portion to multiple users on the Internet. 54. The method as described in item 53 of the scope of patent application, in which a unique Jinyu group is provided for each multi-use, including unidirectional transmission of the unique # 金 KEY 组 to multiple users on the Internet. 55. As for the method in the scope of patent application No. 52, the content part includes the text, sound or video content part. 56. A device for distributing content, including: · a watermarking device for adding a plurality of sets of copies with a plurality of identifiers, respectively, wherein each identifier of each group is for a specific copy The contents are all unique; -10- This paper size applies to China National Standard (CNS) Α4 size (210X297 mm) 52Q981 An encoding device that encodes each copy content part of each group with one of a plurality of keys; a providing device that provides multiple sets of copy content parts to multiple users; and selects a unique one from the plurality of keys The key set provides a means for each multi-user, so that each multi-user can partially interpret the content of the multiple sets of copies to generate content that embodies the unique identifier sequence. 57. The device in item 56 of the scope of patent application, wherein multiple sets of copies are provided. The supply device includes a multiple transmission device that multiplexes the contents of multiple sets of copies to multiple users on the Internet. . 58. The device in item 57 of the scope of patent application, wherein the providing device for providing a unique key set to each multi-user includes a single transmitting device for transmitting the unique key set to a plurality of users on the Internet . 59. The device as claimed in item 56 of the patent application, wherein the content of the device includes text, sound or video content. 60 · —A machine-readable medium providing instructions, where the instructions, if executed by a processor, cause the processor to perform the following operations: Add multiple sets of content to a watermark with multiple sets of identifiers, where each group Each identifier is unique to a particular copy content portion; each copy content portion in each group is encoded with an individual key of a plurality of keys; multiple sets of copy content portions are provided to multiple users; and Talent is provided for each of a number of unique teams selected from a number of keys. 529281 8 8 8 8 A B c D Patent application users, so that each multiple user can partially interpret the contents of multiple sets of copies to produce content that embodies the unique identifier sequence. -12-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)