CN1835580A - Video copyright protecting and monitoring system in digital television - Google Patents
Video copyright protecting and monitoring system in digital television Download PDFInfo
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- CN1835580A CN1835580A CNA200610018787XA CN200610018787A CN1835580A CN 1835580 A CN1835580 A CN 1835580A CN A200610018787X A CNA200610018787X A CN A200610018787XA CN 200610018787 A CN200610018787 A CN 200610018787A CN 1835580 A CN1835580 A CN 1835580A
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Abstract
The system uses digital watermarking technology to embed the copyright identification into the digital TV program. When displaying TV program, the digital TV receiving end extracts the watermarking signal and sents it to the copyright-supervising authority. The copyright-supervising authority gets the information of copyright from the program, and according to the copyright supervising authority decides if it is legal, and then transmits the decision to the receiving end of digital TV. The invention features adding a digital watermarking extraction module and a playing control module into the digital TV receiving end.
Description
Technical field
The invention belongs to field of information security technology, be specifically related to video copyright protecting and supervisory control system in a kind of Digital Television.
Background technology
Digital Television is from television program record, broadcasts emission, receives the television system of new generation that all adopts digital coding and digital transmission technology.Digital Television has high-quality video, sound channel digital sound and the many characteristics of additional interactive information, adopt digital television techniques that various television equipments are obtained than the higher technical performance of original analog equipment, but also have new function such as the inaccessiable two-way interaction of analogue technique.On June 12nd, 2003, SARFT(The State Administration of Radio and Television) has issued " China's cable TV is to the digitlization transition timetable " and has clearly represented: round Realization digital broadcast television in 2010; Realized stopping the broadcast of analog TV broadcasting in 2015.
Along with implementing in full of Digital Television, certainly will drive the development of interactive digital TV, immediate pricing TV (IPPV) for example, the extensive expansion of business such as VOD (VOD) etc.s.The contribution of interactive digital TV maximum is really to give the user with ownership, makes spectators and content fully interactive, forms brand-new abundanter expression way.Interactive digital TV not only provides the program navigating of real guide type, and the content of striding medium expression way can be provided.U.S., Europe, day have begun to develop the interactive digital TV technology at present, and interactive digital TV is also irresistible in the gesture of the rise of China.The cable television network bidirectional rebuilding has been finished in Shanghai at present, pilot with the use new net in 860MHz broadband operation property in 160 general-purpose families, the interactive digital TV service is provided, carries out transmission manner, functions such as video on demand, home shopping, interactive video games are provided with cable television network.The two-way communication of interactive television is that the enforcement of this patent offers convenience.
Along with developing rapidly of digital television techniques, the operation mode of Digital Television progressively is converted to the pattern that content supplier separates with operator for the situation of one from single content supplier altogether with operator.In actual environment, exist some content suppliers to use some program in unauthorized mode, because the digitlization of these films of pirate recordings copy is extremely simple, and in the process of unlimited copy, can lose signal hardly and reach almost ideal picture tonequality quality, so not authorized TV programme under the own pirate recordings of some content supplier, then by providing paid service (as video request program or pay TV etc.) to make a profit the copyright owner's that constituted a serious infringement interests.
The method of existing digital TV programme control at present mainly adopts encryption technology.Existing digital TV encryption scheme such as CA (Conditional Access Conditional Access) system, its operation principle is, TV station is in transmitting television signals, add code signal synchronously, the user has only by corresponding decryption technology, could discern and restore original television image and audio signal.Concrete encryption is at transmitting terminal, and video, audio frequency or data code flow at first will carry out the scrambler encryption under the control of control word upsets data, will be decrypted with the same same circuit of control word control in decrypting end.Control word also claims key, can constantly change usually, is encrypted after transmission network is transferred to the decrypting end deciphering by coding side and produces key.The information encrypted relevant with control word is commonly referred to Entitlement Control Message (ECM), when decrypting end is seen the user, see that the information what channel is authorized is called Entitlement Management Message (EMM), also encrypt the back and be sent to decrypting end, realize the mandate of digital television program is play by transmission network.
Though encryption technology is widely used in the unauthorized access that prevents digital content already, but encryption technology only can be used for the protection of digital multimedia content transmission course, on the one hand, for the digital program after encrypting, illegal piracy person can crack it very targetedly; On the other hand, because the content of encrypting is presented to the user after decrypted always, in case after the deciphering, illegal piracy person can revise arbitrarily and copy digital content easily.At this moment, encryption technology has just lost the meaning to content protecting.Digital watermark technology is one and is used to identify ownership, follow the tracks of uses, guarantees the legal authorization visit, prevents bootlegging and the key technology that content is authenticated, and it is one of the most effective solution of copyrighted digital content protection.Digital watermarking utilizes ubiquitous redundant data and randomness in the copyright, the mark (watermark) that will have certain sense, the method of utilizing numeral to embed is hidden in the digital products such as digital picture, sound, document, books, video, in order to the ownership of proof creator to its works, and as the evidence of identifying, prosecuting illegal infringement.Simultaneously, by detection and analysis, guarantee the complete reliability of digital information to watermark.Usually, digital watermark technology is widely used in the passive type protection, promptly in pirate content by the tracking of the propagation after piracy being originated.Watermark information is hidden in the general digital TV video frequency program, is visual or not visible digital information, and the digital information after this digital information or the deciphering can be used as the copyright sign of program, has uniqueness.Watermark information can be one of form data such as literal, symbol, image, video, audio frequency, bar code or its combination in any.
Summary of the invention
The object of the present invention is to provide video copyright protecting and supervisory control system in a kind of Digital Television; this system can monitor in progress digital television program in real time; and do not influence the play quality of program, this system monitoring has real-time, fail safe, the transparency, high reliability and stronger robustness.
Video copyright protecting and supervisory control system in a kind of Digital Television provided by the invention is characterized in that: comprise registration and authorization module, copyright monitoring module, watermark merge module and receiving terminal for digital television; Wherein,
Registration is used for the copyright owner with authorization module registers and lands, and copyright owner's program essential information and authorization message is sent to the copyright monitoring module;
The copyright monitoring module is made corresponding digital watermarking according to the program essential information that registration and authorization module send over, and this digital watermarking is sent to the watermark merge module; And receiving digital television the receiving terminal digital watermark signal and the content supplier's information that send over, the copyright authorization information that the watermark information that receives and registration and authorization module are sended over compares, whether pirate copyright is judged information thereby obtain this program, at last this copyright judgement information is turned back to receiving terminal for digital television;
The watermark merge module receives the digital watermarking that the copyright monitoring module sends, and watermark is embedded in the original video program that needs protection, and the video frequency program after watermarked is sent to receiving terminal for digital television by digital TV network;
Receiving terminal for digital television receives the video frequency program from digital TV network, and the watermark information that extracts wherein sends to the copyright monitoring module; And according to the feedback information of copyright monitoring module, the broadcast of control of video program.
Further aspect of the present invention is: above-mentioned registration and authorization module comprise that the user registers and land module, program authorization module, program Register Cancel module and contents provider management module; Wherein,
The user registers and lands registration and the logon information that module is used to receive the copyright owner, and information judged, selection is registered, is nullified still and authorize program, if registration or cancellation, then the registration ID with the copyright owner passes to program Register Cancel module, if authorize, then the registration ID with the copyright owner passes to the program authorization module;
The program authorization module licenses to certain content supplier according to copyright owner's registration ID with its certain program, and will authorize the relevant information of program to send the copyright monitoring module to, sends content supplier's information of program mandate to contents provider management module;
Program Register Cancel module is registered or is nullified its certain program according to copyright owner's registration ID, and sends the program code of program to the copyright monitoring module;
Contents provider management module is used to manage all content supplier's information, increase, deletion, modification or query contents provider information.
Further aspect of the present invention also is: above-mentioned copyright monitoring module comprises copyright identity management module, pirate feedback information module and intelligent processing module; Wherein,
When copyright identity management module needs registration program ID when reception, make the watermark information of this program, and be sent to the watermark merge module; When receiving the program ID that needs cancellation, delete the pairing watermark information of this program;
Intelligent processing module is used for the program authorization message that the watermark information that receives and program authorization module send over is resolved contrast, judge that whether this program is that pirate copyright is judged information, and the copyright judgement information that sends after the Intelligent treatment arrives receiving terminal for digital television and pirate feedback information module;
Pirate feedback information module is used for the TV programme copyright judgement information that receives is write down, files and gives the copyright owner with pirate feedback information.
The present invention is further characterized in that again: above-mentioned receiving terminal for digital television comprises signal processing module, watermark extracting module, communication module and transmit control module;
The signal that signal processing module is used for receiving carries out digital signal and the signal that receives is carried out digital signal carries out descrambling, demodulation sign indicating number, and sends this decoded signal to the watermark extracting module;
The watermark extracting module extracts watermark information from decoded signal, and the watermark information that extracts is sent to communication module;
The watermark information that communication module is used for receiving sends to intelligent processing module to be judged, and sends the copyright judgement information that it returns to transmit control module;
Transmit control module judges according to copyright whether information is the legal displaying video programs that determines whether, legal program normal play, and pirate program then stops to play.
Watermark extracting module, communication module and transmit control module in the digital TV terminal of the present invention is watermark extracting, message transmission and a control device, can not influence the play quality of program TV programme, in most of the cases, unless the user attempts to visit undelegated content, otherwise they generally can not feel the existence of this system.Though user's visit is restricted, for legal visit, this system is transparent.And because the watermark extracting module is placed television receive terminal, make the wide coverage of whole system not have the monitoring blind spot; Have real-time, can monitor in progress digital television program in real time; Whole system is flexible, and is separate to the mandate and the program itself of program, can be good at controlling the broadcast of program; System has very high reliability, the digital watermark technology that adopts has very strong robustness, fail safe and the transparency, can resist at present much at digital television program such as attack patterns such as cutting, convergent-divergent, copies, as long as digital watermarking can be extracted out, just can identify the copyright information of this program, pirate strong evidence is provided; This system implementation cost is lower in addition, and watermark extracting is partially embedded in the receiving terminal for digital television, and the cost that then makes up whole monitoring network will reduce greatly.
In a single day system of the present invention finds pirate content, then stops to play TV programme immediately, has effectively realized the protection to the digital program copyright, has also preserved the material evidence of pirate information simultaneously, accomplishes to have good grounds.The present invention monitors wide coverage, and area is big, realizes that required Financial cost is little, has considerable prospect.
Description of drawings
Fig. 1 is the video copyright protecting in the Digital Television of the present invention and the structural representation of supervisory control system;
Fig. 2 is the video copyright protecting in the Digital Television and the systematic schematic diagram of supervisory control system.
Fig. 3 is the video copyright protecting in the Digital Television and the system flow chart of supervisory control system;
Fig. 4 is the structural representation of the concrete enforcement of system of the present invention;
Embodiment
Below in conjunction with accompanying drawing and example the present invention is described in further details.
As shown in Figure 1, system of the present invention comprises that the user registers and land module 300, copyright monitoring module 400, watermark merge module 500 and receiving terminal for digital television 600.Below each several part is described in further detail.
Registration is used to allow the copyright owner register and land with authorization module 300, and the copyright owner lands the back its content of TV program is registered, nullified or authorizes.The copyright owner has copyright to the program that it records, and has the right to permit certain TV station to play this program, to obtain corresponding rights and interests.The present invention will obtain and provide the TV station of video playback or other mechanism with similar functions to be referred to as " content supplier ", with the user just the producer of TV programme be referred to as " copyright owner ".Be the copyright of protection copyright owner, must register and authorize that the copyright owner licenses to content supplier by this module with the right of broadcasting of its digital television program by registration and authorization module 300 to program.The copyright owner lands this module in registration with authorization module 300 registration and after by authentication, and this module is sent to copyright monitoring module 400 with the copyright owner to the essential information and the authorization message of its program.
Copyright monitoring module 400 is cores of whole system, and the copyright of all registed authorization programs is monitored, and is guaranteeing the normal operation of whole system, and the identification program is legal copy or piracy, and outcome record is got off.The function of copyright monitoring module 400 has two, and one is that function is made in watermark, and another is the Intelligent treatment function.In the watermark production phase, make corresponding digital watermarking according to the program essential information that registration and authorization module 300 send over, and this digital watermarking is sent to watermark merge module 500.In the Intelligent treatment stage, digital watermark signal that receiving digital television receiving terminal 600 sends over and broadcast unit (content supplier) information, according to the watermark information that receives, can determine the numbering of this program, compare by the copyright authorization information that sends over registration and authorization module 300, whether pirate copyright is judged information thereby obtain this program, then this copyright judgement information is turned back to receiving terminal for digital television 600.
After watermark merge module 500 receives the digital watermark information (being the copyright identification information) of copyright monitoring module transmission; watermark is embedded in the program that the copyright owner needs protection; thereby obtain the video frequency program after watermarked; this program is after licensing to content supplier; in digital TV network, issue broadcast by it, receive by receiving terminal for digital television 600.The watermark embedding operation can be before video decode, middle or any stage is afterwards carried out.
Receiving terminal for digital television 600 receiving digital television signals, received television signal in digital TV network, the embedding that sends of watermark merge module 500 just the TV signal of digital watermarking, therefrom extract the Play Control that realizes simultaneously behind the digital watermark information TV programme.Receiving terminal for digital television 600 feeds back to copyright monitoring module 400 by wireless transmission or wire transmission mode after watermark information is extracted.400 pairs of watermark informations that receive of copyright monitoring module, through after the Intelligent treatment, with this program whether the copyright judgement information of legal broadcast turn back to receiving terminal for digital television 600.Receiving terminal for digital television 600 judges that according to copyright whether information determine displaying video.Watermark extracting operation can be before video decode, middle or any stage is afterwards carried out.
Below each several part of the present invention is described in further detail.
As shown in Figure 2, registration of the present invention and authorization module 300 comprise that the user registers and land module 301, program authorization module 302, program Register Cancel module 303 and contents provider management module 304.
The user registers and lands log-on message and the debarkation authentication that module 301 is used to receive the copyright owner.The copyright owner is at first in this module registration, and by just landing to this system after the authentication, the copyright owner registers, nullifies or revise its program by program Register Cancel module 303, and the registration ID with the copyright owner passes to program Register Cancel module 303 simultaneously.Also can carry out empowerment management to its program by program authorization module 302, the registration ID with the copyright owner passes to program authorization module 302 simultaneously.The copyright owner at first registers and lands its real information of registration in the module 301 the user, as number of the account, password, Business Name, corporate juridical person's representative, business license numbering, CompanyAddress, contact person, telephone number, facsimile message.Copyright owner's number of the account just can be landed after must and activating by keeper's checking.
Program authorization module 302 is given some or certain several content supplier according to copyright owner's registration ID with the copyright authorization of its certain program, and the program code that will authorize program sends copyright monitoring module 400 to, sends the ID of content supplier of program mandate to contents provider management module 304.When the right of broadcasting of a certain program is licensed to certain content supplier, need in program authorization module 302, write down this program, be authorized to the relevant information of content supplier.The relevant information of program comprises program code, programm name, program category, copyright owner's number of the account etc.; The relevant information that is authorized to content supplier comprises content supplier's numbering.Here the numbering of program is unique, i.e. unique definite this program of program code and all authorization messages thereof.
Program Register Cancel module 303 is registered its certain program or nullify according to copyright owner's registration ID, and sends the program code of phase related control information and this program to copyright monitoring module 400.If when a certain program is registered, the essential information that increases this program in this module is to place on record, and recorded information comprises program code, programm name, program category etc.; If when a certain program is nullified, all essential informations of this program of deletion in this module can be not deleted but have the copyright owner's of this program number of the account, because the copyright owner also has other programs to manage.
Content supplier's information that contents provider management module 304 management is all comprises numbering to content supplier, Business Name, corporate juridical person's representative or the like information, can increase these information, deletion, modification, query manipulation.After this module receives and sends over the ID of content supplier of program mandate from program authorization module 302, inquire about the content supplier's information in this module, if the ID of this content supplier not, then in this module, increase the information of this content supplier, comprise content supplier's numbering, content supplier's Business Name, legal representative, CompanyAddress of content supplier, contact person, telephone number, facsimile message.
Copyright monitoring module 400 comprises copyright identity management module 401, pirate feedback information module 402 and intelligent processing module 403.
The copyright identification information of copyright identity management module 401 each program of management, the program ID that this module program receiving Register Cancel module 303 sends and related control information mutually (registration is still nullified), and the watermark information of making is sent to watermark merge module 500.What be transferred to copyright identity management module 401 when program Register Cancel module 303 is when needing the program ID of registration, copyright identity management module 401 is produced watermark information according to the relevant information (as program code, program copyright owner) of program, copyright identification information just, this watermark information can be a character string, also can be bianry image, as the LOGO sign of copyright owner and program code.Each program is corresponding one by one with its watermark information, can uniquely determine a program by this watermark information.Copyright identity management module 401 is sent to watermark merge module 500 with this watermark information.When program Register Cancel module 303 be transferred to copyright identity management module 401 be the program ID that need to nullify the time; the copyright identity management module 401 deletion pairing watermark informations of this program (being the copyright identification information), then this program no longer is subjected to the copyright monitoring and protection of whole system.
Intelligent processing module 403 receives the watermark information that sends over from receiving terminal for digital television 600, after carrying out Intelligent treatment, copyright control information is turned back to receiving terminal for digital television 600, if be judged as piracy, then pirate information is sent to the copyright owner by pirate feedback information module 402.Receive watermark information and broadcaster's information (content supplier) of sending from receiving terminal for digital television 600, can identify corresponding program according to watermark information, the program authorization message that sends over by program authorization module 302, thereby obtain the grant column list (content supplier's information) of this program, if from broadcaster's information (content supplier) table within the rule that receiving terminal for digital television 600 sends, then think illegal broadcast, otherwise then think legal broadcast.Then this copyright judgement information is turned back to receiving terminal for digital television 600, the latter determines whether displaying video programs according to copyright judgement information, if be legal then normal play, if non-rule stops to play.
402 pairs of TV programme copyright judgement information that receive from intelligent processing module 403 of pirate feedback information module write down and file; and automatic report generation; write down the copyright information and the behaviour in service of digital program in certain period; the copyright owner can be had good grounds to the copyright operating position of own program; if find that certain program is illegally play; this module transfers immediate news; notify its program of copyright owner when and where by the pirate broadcast of which content supplier as modes such as Email or short messages, allow the copyright owner can fast and effeciently protect the rights and interests of oneself.
Watermark merge module 500 utilizes watermarking algorithm that watermark information is embedded in the video frequency program, and this watermark information is the copyright identification information just, and is corresponding one by one with video frequency program.The watermark extracting module just can extract watermark information by watermark extracting algorithm corresponding with watermarking algorithm and key.
Watermark merge module 500 is embedded into digital watermarking in the original video program.Digital watermark technology is to utilize ubiquitous redundant data and randomness in the video data, revise by the content of media data being made trace, unique sign of expression is embedded in the original video data, so that can discern this video frequency program by this sign.This process does not influence the normal use of original data, does not change the size of original data volume, does not change the visual quality of former medium.
Receiving terminal for digital television 600 comprises signal processing module 601, watermark extracting module 602, communication module 603 and transmit control module 604.
Signal processing module 601 receives the digital television signal that is embedded with digital watermarking that comes from digital TV network, then this digital television signal is carried out descrambling, demodulation sign indicating number, and sends this decoded signal to watermark extracting module 602.
Watermark extracting module 602 extracts watermark information from decoded signal, and the watermark information that extracts is sent to communication module 603.Watermark extracting is the inverse process that watermark embeds, the correct extraction of digital watermarking need be known watermarking algorithm, comprise the position of watermark embedding, the embedment strength of watermark, if the initial condition imprinting is through encrypting, then also need to know the password of deciphering, the watermark information that extracts not deciphering can only be a mess code, and the bootlegger is difficult to crack out watermark information wherein.
Communication module 603 receives above-mentioned watermark information, send it to intelligent processing module 403, intelligent processing module 403 is judged the whether legal broadcast of this digital television program, then copyright judgement information is turned back to communication module 603, the copyright judgement information that communication module 603 is returned this again sends transmit control module 604 to.
Transmit control module 604 determines whether displaying video programs according to the copyright judgement information that receives, if the illegal program of playing then stops decoding and plays, and the information of display end prompting " this program is pirate "; If the program of legal copyright then allows normal decoder to play, thereby realize the monitoring and the protection of digital TV video frequency program copyright.
Receiving terminal for digital television 600 can be a Digital Television, also can be set-top box, can also be the receiving terminal for digital television of other form.
Shown in the system flow chart of Fig. 3, flow process of the present invention is:
1, the copyright owner registers at copyright monitoring server website, after authentication, logs on user's registration and lands module 300, carries out the request that program is registered, nullified or authorize to this module;
2, the copyright owner registers, nullifies, revises its TV programme by program Register Cancel module 303 and operation such as inquiry;
3, copyright identity management module 401 produces a unique corresponding identification for each TV programme, can uniquely determine a TV programme by this sign.The generation of sign can be by means of error correcting code, to guarantee sign and the unique corresponding accuracy of program;
4, the copyright owner utilizes watermark merge module 500 to identify to embed in the corresponding video frequency program and goes;
5, the copyright owner licenses to content supplier with watermarked video frequency program, transfers to content supplier and is published to digital TV network and gets on.The copyright owner is registered in the data in server storehouse by the authorization message of program authorization module 301 with its program.
6, watermarked TV programme may be subjected to some illegal piracy in transmitting in digital TV network, and these pirate TV programme are also propagated in digital TV network;
7, TV user is by television receive terminal 600 (just Digital Television or set-top box) receiving digital television program, and wherein the watermark signal (sign) in the watermark extracting module 602 extraction TV programme is sent to intelligent processing module 403 with this sign;
8, intelligent processing module is according to the watermark signal (sign) that receives, Query Database, thereby judge which program television receive terminal 600 receiving digital television programs are, then by the program authorization message in the Query Database, can obtain having the tabulation of the full content provider of this playing programs power, if just in the content supplier of broadcast program not among this tabulation, then be considered as illegal play or pirate, otherwise be considered as legal broadcast.Then copyright judgement information is turned back to television receive terminal 600;
9, television receive terminal 600 judges that according to the copyright that receives whether information is pirate, is controlled by transmit control module 604 and whether plays.If copyright judgement information is legal, then do not controlled; If be illegal, then stop and play, and show that at television terminal this program is pirate program.
10, pirate feedback information module 402 writes down copyright judgement information and files; and automatic report generation; write down the copyright information and the behaviour in service of digital program in certain period; regularly notify its program of copyright owner when and where by the pirate broadcast of which content supplier, allow the copyright owner can fast and effeciently protect the rights and interests of oneself in modes such as Email or short messages.
Fig. 4 is the concrete structural representation of implementing of this system, and the copyright monitoring central server comprises registration and authorization module 300, copyright monitoring module 400.In copyright Surveillance center, carry out user's registration of copyright owner and land the registration of program, cancellation, modification and inquiry, the mandate of program, the making of the corresponding copyright sign of program, receive the watermark signal that television terminal transmits, judge whether to be piracy, and pirate feedback information etc.Copyright owner's information, programme information, watermark information, content supplier's information, authorization message or the like all information are placed in the database of copyright Surveillance center.
The copyright owner can download watermark embedded software (watermark merge module 500) in the copyright monitoring central server, and its video frequency program that needs protection is embedded corresponding copyright sign.
Digital television receiving terminal by digital TV set-top box or television decoding chip are transformed, is realized the function that digital watermark signal extracts.Digital television receiving terminal extracts the watermark signal of wherein hiding after receiving TV signal, send to copyright Surveillance center by digital TV network or other communication networks again, copyright Surveillance center receives this watermark information, and this information comprises the watermark information that extracts and the title of content supplier.The watermark information that system docking is received is resolved, is discerned, whether the program of judging content supplier's broadcast is legal, again this copyright judgement information is turned back to digital TV set-top box or digital television receiving terminal, whether digital television receiving terminal is carried out Play Control by the information that piracy is play according to this program.
The coded system of the video frequency program that the present invention is suitable for comprises MPEG series form, stream media format, H.264 waits various digital TV video frequency forms.
Claims (5)
1, video copyright protecting and the supervisory control system in a kind of Digital Television is characterized in that: this system comprises registration and authorization module (300), copyright monitoring module (400), watermark merge module (500) and receiving terminal for digital television (600); Wherein,
Registration is used for the copyright owner with authorization module (300) registers and lands, and copyright owner's program essential information and authorization message is sent to copyright monitoring module (400);
Copyright monitoring module (400) is made corresponding digital watermarking according to the program essential information that registration and authorization module (300) send over, and this digital watermarking is sent to watermark merge module (500); And receiving digital television receiving terminal (600) digital watermark signal and the content supplier's information that send over, the copyright authorization information that the watermark information that receives and registration and authorization module (300) are sended over compares, whether pirate copyright is judged information thereby obtain this program, then this copyright judgement information is turned back to receiving terminal for digital television (600);
Watermark merge module (500) receives the digital watermarking that copyright monitoring module (400) sends, watermark is embedded in the original video program that needs protection, and the video frequency program after watermarked is sent to receiving terminal for digital television (600) by digital TV network;
Receiving terminal for digital television (600) receives the video frequency program from digital TV network, and the watermark information that extracts wherein sends to copyright monitoring module (400); And according to the feedback information of copyright monitoring module (400), the broadcast of control of video program.
2, a kind of digital TV video frequency copyright protection according to claim 1 and supervisory control system is characterized in that: registration comprises that with authorization module (300) user registers and land module (301), program authorization module (302), program Register Cancel module (303) and contents provider management module (304); Wherein,
The user registers and lands registration and the logon information that module (301) is used to receive the copyright owner, and information judged, selection is registered, is nullified still and authorize program, if registration or cancellation, then the registration ID with the copyright owner passes to program Register Cancel module (303), if authorize, then the registration ID with the copyright owner passes to program authorization module (302);
Program authorization module (302) licenses to certain content supplier according to copyright owner's registration ID with its certain program, and the relevant information that will authorize program sends copyright monitoring module (400) to, and the ID of content supplier of program mandate is sent to contents provider management module (304);
Program Register Cancel module (303) is registered or is nullified its certain program according to copyright owner's registration ID, and sends the program code of program to copyright monitoring module (400);
Contents provider management module (304) is used to manage all content supplier's information, increase, deletion, modification or query contents provider information.
3, a kind of digital TV video frequency copyright protection according to claim 1 and 2 and supervisory control system is characterized in that: copyright monitoring module (400) comprises copyright identity management module (401), pirate feedback information module (402) and intelligent processing module (403); Wherein,
When copyright identity management module (401) needs registration program ID when reception, make the watermark information of this program, and be sent to watermark merge module (500); When receiving the program ID that needs cancellation, delete the pairing watermark information of this program;
Intelligent processing module (403) is used for the program authorization message that the watermark information that receives and program authorization module (302) send over is resolved contrast, judge that whether this program is that pirate copyright is judged information, and the copyright judgement information that sends after the Intelligent treatment arrives receiving terminal for digital television (600) and pirate feedback information module (402);
Pirate feedback information module (402) is used for the TV programme copyright judgement information that receives is write down and files.
4, a kind of digital TV video frequency copyright protection according to claim 1 and 2 and supervisory control system is characterized in that: receiving terminal for digital television (600) comprises signal processing module (601), watermark extracting module (602), communication module (603) and transmit control module (604);
The signal that signal processing module (601) is used for receiving carries out digital signal and the signal that receives is carried out digital signal carries out descrambling, demodulation sign indicating number, and sends this decoded signal to watermark extracting module (602);
Watermark extracting module (602) extracts watermark information from decoded signal, and the watermark information that extracts is sent to communication module (603);
The watermark information that communication module (603) is used for receiving sends to intelligent processing module (403) to be judged, and sends the copyright judgement information that it returns to transmit control module (604);
Transmit control module (604) judges according to copyright whether information is the legal displaying video programs that determines whether, legal program normal play, and pirate program then stops to play.
5, a kind of digital TV video frequency copyright protection according to claim 3 and supervisory control system is characterized in that: receiving terminal for digital television (600) comprises signal processing module (601), watermark extracting module (602), communication module (603) and transmit control module (604);
The signal that signal processing module (601) is used for receiving carries out digital signal and the signal that receives is carried out digital signal carries out descrambling, demodulation sign indicating number, and sends this decoded signal to watermark extracting module (602);
Watermark extracting module (602) extracts watermark information from decoded signal, and the watermark information that extracts is sent to communication module (603);
The watermark information that communication module (603) is used for receiving sends to intelligent processing module (403) to be judged, and sends the copyright judgement information that it returns to transmit control module (604);
Transmit control module (604) judges according to copyright whether information is the legal displaying video programs that determines whether, legal program normal play, and pirate program then stops to play.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610018787XA CN100505865C (en) | 2006-04-14 | 2006-04-14 | Video copyright protecting and monitoring system in digital television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610018787XA CN100505865C (en) | 2006-04-14 | 2006-04-14 | Video copyright protecting and monitoring system in digital television |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1835580A true CN1835580A (en) | 2006-09-20 |
| CN100505865C CN100505865C (en) | 2009-06-24 |
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| CNB200610018787XA Expired - Fee Related CN100505865C (en) | 2006-04-14 | 2006-04-14 | Video copyright protecting and monitoring system in digital television |
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| CN101150449B (en) * | 2006-09-22 | 2011-06-15 | 中国移动通信集团公司 | Content information monitoring system and method |
| CN102111664A (en) * | 2009-12-25 | 2011-06-29 | 深圳Tcl新技术有限公司 | Audio and video content filtering system |
| CN102857832A (en) * | 2012-10-09 | 2013-01-02 | 安徽天虹数码技术有限公司 | Method and system for protecting program file of malicious operation prevention hard disk playing system |
| CN102867515A (en) * | 2012-02-20 | 2013-01-09 | 我友网络科技有限公司 | Method for authenticating digital audio copyright through digital watermarking |
| WO2013056436A1 (en) * | 2011-10-19 | 2013-04-25 | Thomson Licensing | System and method for automatic content program discovery |
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| CN104581232A (en) * | 2013-10-23 | 2015-04-29 | 晨星半导体股份有限公司 | Television control chip with data protection function and method for controlling television device |
| CN104581432A (en) * | 2015-01-01 | 2015-04-29 | 北京金石威视科技发展有限公司 | Radio and television safe broadcasting detection method based on digital watermark technology |
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| CN104933596A (en) * | 2015-05-29 | 2015-09-23 | 北京鼎真文化传媒有限公司 | Digital audio disc issuing system based on mobile internet |
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| CN101047833B (en) * | 2007-02-09 | 2010-10-13 | 浪潮电子信息产业股份有限公司 | Program monitoring management system based on digital water-print and two-way top-set box |
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| CN106803047A (en) * | 2017-01-13 | 2017-06-06 | 中国电建集团成都勘测设计研究院有限公司 | Database water mark labeling method |
| CN108108595A (en) * | 2017-12-29 | 2018-06-01 | 晨星半导体股份有限公司 | The method and system authorized to the software in electronic equipment |
| CN108108595B (en) * | 2017-12-29 | 2023-03-28 | 星宸科技股份有限公司 | Method and system for authorizing software in electronic equipment |
| CN108447501A (en) * | 2018-03-27 | 2018-08-24 | 中南大学 | Pirate video detection method and system based on audio word under a kind of cloud storage environment |
| CN108447501B (en) * | 2018-03-27 | 2020-08-18 | 中南大学 | Pirated video detection method and system based on audio words in cloud storage environment |
| CN110072110A (en) * | 2019-05-08 | 2019-07-30 | 浙江传媒学院 | Video display watermark insertion, video display watermark extracting and recognition methods and device |
| CN113645505A (en) * | 2020-04-27 | 2021-11-12 | 西娜媒体有限公司 | System and method for video content security |
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