CN101110943A - Method for implementing parameter registration of controlled access and digital publication right management system - Google Patents
Method for implementing parameter registration of controlled access and digital publication right management system Download PDFInfo
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- CN101110943A CN101110943A CNA2007100766082A CN200710076608A CN101110943A CN 101110943 A CN101110943 A CN 101110943A CN A2007100766082 A CNA2007100766082 A CN A2007100766082A CN 200710076608 A CN200710076608 A CN 200710076608A CN 101110943 A CN101110943 A CN 101110943A
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Abstract
The present invention discloses a method to realize a controlled visit and a parameter registration of a digital right management system, which comprises the following procedures: the CA&DRM management server and the CA&DRM client terminal respectively stores the MAC address of a set-top box; the CA&DRM client terminal sends an registration request to the CA&DRM management server, registers a serial number, and the registration request comprises the MAC address; the CA&DRM management server judges that the MAC address is already existed in the CA&DRM management server, and distributes the serial number to the the CA&DRM client terminal, and record the matching relationship between the serial number and the MAC address; an application module sends a service certification request which comprises the serial number to the service management server; if the service certification is valid judged by the service management server, the service is provided to the user of the set-top box. In this way, the certification and the registration process can be combined and finished synchronistically, the system load is decreased, the compatibility is enhanced, and thereby, the pressure of the system side from the certification and the registration is decreased.
Description
Technical field
The present invention relates to Web TV, in particular, a kind of method that realizes controlled access and system for numeral copyright management parameter registration at network television system.
Background technology
Current, network TV business has obtained fast development at home and abroad, is one of business of each big fixed network operators of the whole world tool prospect of improving its every user's average income (ARPU, Average Revenue Per User).
Network television system can provide with video request program, live telecast for the user, is the audio frequency and video service of basic service; Wherein, video request program is the method that transmits TV in IP network by point-to-point mode, and the user selects the program that will watch on demand on one's own initiative, has satisfied user's individual demand; Live telecast is similar to traditional tv, and the selection and the switching that provide on-screen menu to carry out television channel, is a kind of method that transmits TV in IP network by the mode of network multicast.Simultaneously can also derive colourful other multiple business on this basis, such as: time-shift service, recoding service, video on demand business etc.
By the Web TV platform, content supplier can provide excellent program for the user.Abundant content and diversified form of service have been arranged, and differentiated service, the demand of paying as required, watching with compensation become inevitable, therefore, and controlled access and digital copyright management (CA﹠amp; DRM, Conditional Access﹠amp; Digital Rights Management) seems particularly important.
At present, the controlled access of main flow and system for numeral copyright management provider comprise: NDS, Nagravision, Irdeto, Widevine, Verimatrix etc.The CA﹠amp of several big main flows; The DRM system has all adopted the pattern of client-server, the client scheme can be divided into smart card solution and virtual software card scheme, no matter but which kind of scheme, system all is necessary for each STB terminal configuration unique sequence number (SN, Serial Number).Smart card solution is configured in sequence number on the smart card, and smart card is inserted on the set-top box by the smart card slot on the set-top box; Virtual software card scheme downloads to the virtual smart card module in the set-top box by network.
When carrying out network TV business, for protection programme content safety need be taked encryption measures to programme content.Usually, between controlled access and system for numeral copyright management and the IPTV system two relatively independent systems, by certain integrated exploitation can be an integrated system with two system integrations, in the whole system running, the parameter relevant with encryption need be transmitted between system end and client.In the running of system, when the set-top-box opening startup, what at first will carry out is user's business authentication, guarantees that this user is the validated user in the system.Simultaneously, as the protection system CA﹠amp of content safety; The DRM system equally also will carry out the registration and the authentication of user end to server end.In these two processes, all there are many relevant parameters to need to transmit, generally adopt two processes independently to carry out at present, then at the IPTV of system end system and CA﹠amp; Interactive information once more between the DRM system.
In the business authentication, STB terminal is with user name, user password, MAC (Medium AccessControl, medium access control) relevant parameter such as address sends to the service managing server of service platform system as the parameter of business authentication request, business authentication verification relevant parameter, after authentication is passed through, wait for CA﹠amp; The DRM system is with this user's CA﹠amp; The drm agent sequence number sends over.While CA﹠amp; Drm agent is also to CA﹠amp; The DRM system sends register requirement, and parameter is the set-top box MAC Address, after registration is finished, and CA﹠amp; The DRM system end is to CA﹠amp; Drm agent sends the client sequence number, and this sequence number is sent to the service managing server of service platform system together with the MAC Address of this set-top box.
But there is the deficiency of the following aspects in this pattern.
Synchronism problem: because two processes are independently carried out, be difficult to guarantee to finish synchronously, therefore will finish both problem of coupling verification with regard to existing time-delay to wait for.
Increase the processing load of system end: flow process more complicated, STB terminal and CA﹠amp; Drm agent authenticates and registration to system end respectively, attaches in the time of all being identified at of the other side will being authenticated and register simultaneously, mates verification at system end then.Increased relevant information at IPTV system and CA﹠amp; The number of times that the DRM system time transmits.When large scale deployment, it is more obvious that deficiency seems.
Compatible: STB terminal and CA﹠amp; Drm agent is respectively to system end authentication and registration, as network television system and different CA﹠amp; During the DRM system integration, need the difference of consideration on system-side interface, reduced the compatibility between the different system.
Therefore, there is defective in prior art, needs to improve.
Summary of the invention
The object of the present invention is to provide a kind of method that realizes controlled access and system for numeral copyright management parameter registration, in network television system, with two independently the authentication and register flow path organically combine, can finish the authentication and the registration of IPTV system and controlled access and digital copyright management synchronously, make that whole clear process is simple, reduce system loading, increase compatible.
Technical scheme of the present invention is as follows:
A kind of method that realizes controlled access and system for numeral copyright management parameter registration is applied to network television system, and the server end of described network television system comprises service managing server and CA﹠amp; DRM management server, the client of described network television system comprise set-top box and application module and CA﹠amp; Drm agent; Described method comprises step: A1, described CA﹠amp; DRM management server and described CA﹠amp; Drm agent is the MAC Address of memory machine top box respectively; A2, described CA﹠amp; Drm agent is to described CA﹠amp; The DRM management server sends register requirement, and patent application serial numbers, and wherein, described register requirement comprises described CA﹠amp; The MAC Address of drm agent storage; A3, described CA﹠amp; The DRM management server judges whether described MAC Address has been stored in described CA﹠amp; In the DRM management server, be then to described CA﹠amp; Drm agent is distributed sequence number, and writes down the matching relationship of described sequence number and described MAC Address; Otherwise registration failure is no longer carried out subsequent step; A4, described application module send the business authentication request to described service managing server, wherein comprise described CA﹠amp; The described sequence number of drm agent; A5, described service managing server judge whether described business authentication request is legal, and being then described network television system provides service for the user of described set-top box; Otherwise do not provide service.
Described method, wherein, before the steps A 1, also comprise step: the user upgrades the information of described set-top box.
Described method, wherein, steps A 1 specifically may further comprise the steps: A11, described service managing server send to described CA﹠amp with the MAC Address of each set-top box; The DRM management server; A12, set-top box send to described CA﹠amp by its application module with its MAC Address; Drm agent; A13, described CA﹠amp; DRM management server and described CA﹠amp; Drm agent is stored the MAC Address of the set-top box of reception respectively.
Described method, wherein, steps A 1 also comprises step, described CA﹠amp; The DRM management server saves as the tabulation of set-top box MAC Address with the MAC Address of each set-top box; And steps A 3 specifically comprises, described CA﹠amp; The DRM management server judges whether the described MAC Address in the register requirement is included in described CA﹠amp; In the set-top box MAC Address tabulation in the DRM management server, be then to succeed in registration, described CA﹠amp; The DRM management server is to described CA﹠amp; Drm agent is distributed a sequence number, and writes down the matching relationship of described sequence number and described MAC Address; Otherwise return registration failure information to described set-top box, no longer carry out subsequent step.
Described method, wherein, in the steps A 3, during registration failure, described CA﹠amp; The DRM management server also returns registration failure information to described set-top box.
Described method, wherein, steps A 4 specifically may further comprise the steps: A41, described CA﹠amp; Drm agent sends to described application module with described sequence number; A42, described application module send the business authentication request to described service managing server, wherein comprise described sequence number.
Described method, wherein, in the steps A 4, described business authentication request specifically comprises user name, password, described MAC Address, described sequence number.
Described method, wherein, in the steps A 5, described service managing server is judged when described business authentication request is legal, described CA﹠amp; The DRM management server is to described CA﹠amp; Drm agent sends the program of encryption and the control information and the authorization message of channel, described CA﹠amp; Drm agent is decrypted, and decruption key is sent to described application module.
Described method, wherein, in the steps A 5, described service managing server is judged when described business authentication request is legal, also writes down the matching relationship of described sequence number and described MAC Address.
Described method, wherein, in the steps A 5, described service managing server is judged when described business authentication request is illegal, also to set-top box return authentication failure information.
Adopt such scheme, the present invention by with two independently authentication and register flow path organically combine, finish authentication and register flow path synchronously, make whole flow process system clear simple, reduce system loading, increase compatibility; Thereby make whole authentication and registration process intuitively clear, flow process links up; For the operation of large scale system, have and lower advantage and the effect that authenticates and register system side pressure.
Description of drawings
Fig. 1 is a system configuration schematic diagram of the present invention;
Fig. 2 is a method flow schematic diagram of the present invention.
Embodiment
Below preferred embodiment of the present invention is described in detail.
As depicted in figs. 1 and 2, the invention provides a kind of realization CA﹠amp; DRM system parameters process registration, it is applied in the network television system, and the server end of described network television system comprises service managing server and CA﹠amp; DRM management server, the client of described network television system comprise set-top box and application module and CA﹠amp; Drm agent; Realization CA﹠amp of the present invention; DRM system parameters process registration specifically may further comprise the steps.
A1, described CA﹠amp; DRM management server and described CA﹠amp; Drm agent is the MAC Address of memory machine top box respectively.Wherein, before steps A 1, can also comprise step: the user upgrades the information of described set-top box.
Specifically, steps A 1 specifically can may further comprise the steps:
A11, described service managing server send to described CA﹠amp with the MAC Address of each set-top box; The DRM management server;
A12, set-top box send to described CA﹠amp by its application module with its MAC Address; Drm agent; The user starts this user's set-top box, difference described application module of initialization and described CA﹠amp after self check is finished; Drm agent; Described application module sends to described CA﹠amp with described MAC Address; Drm agent.
A13, described CA﹠amp; DRM management server and described CA﹠amp; Drm agent is stored the MAC Address that receives the set-top box that obtains respectively.
A2, described CA﹠amp; Drm agent is to described CA﹠amp; The DRM management server sends register requirement, and patent application serial numbers, and wherein, described register requirement comprises described CA﹠amp; The MAC Address of drm agent storage can also comprise other relevant informations, specifically decides on demand.
A3, described CA﹠amp; The DRM management server judges whether described MAC Address has been stored in described CA﹠amp; In the DRM management server, be then to succeed in registration, described CA﹠amp; The DRM management server is to described CA﹠amp; Drm agent is distributed a sequence number, and writes down the matching relationship of described sequence number and described MAC Address; Otherwise registration failure is no longer carried out subsequent step.
Wherein, as described CA﹠amp; The DRM management server judges that described MAC Address is not stored in described CA﹠amp; In the DRM management server, then think registration failure; At this moment, described CA﹠amp; The DRM management server can also return registration failure information to described set-top box.
A4, described application module send the business authentication request to described service managing server, wherein comprise described CA﹠amp; The described sequence number of drm agent; Sequence number is a numbering, does not have coding, and there is requirement separately in the system that length is different, and the present invention does not make any additional limits to this.Wherein, described business authentication request specifically can comprise user name, password, described MAC Address, described sequence number or the like.
And steps A 4 specifically can may further comprise the steps:
A41, described CA﹠amp; Drm agent sends to described application module with described sequence number;
A42, described application module send the business authentication request to described service managing server, wherein comprise described sequence number.
A5, described service managing server judge whether described business authentication request is legal, and being then described network television system provides service for the user of described set-top box; Otherwise do not provide service.
Specifically, for example, described service managing server is judged when described business authentication request is legal, described CA﹠amp; The DRM management server is just to described CA﹠amp; Drm agent sends the program of encryption and the control information and the authorization message of channel, described CA﹠amp; Drm agent is decrypted, and decruption key is sent to described application module.
When described service managing server judged that described business authentication request is legal, described service managing server can also write down the matching relationship of described sequence number and described MAC Address; Like this, just can with two independently the authentication and register flow path organically combine, can finish the authentication and the registration of IPTV system and controlled access and digital copyright management synchronously.
When described service managing server judged that described business authentication request is illegal, described service managing server can also be to set-top box return authentication failure information.
An embodiment is can also comprise step in the steps A 1, described CA﹠amp; The DRM management server saves as the tabulation of set-top box MAC Address with the MAC Address of each set-top box; At this moment, steps A 3 specifically may further comprise the steps, described CA﹠amp; The DRM management server judges whether the described MAC Address in the register requirement is included in described CA﹠amp; In the set-top box MAC Address tabulation in the DRM management server, be then to succeed in registration, described CA﹠amp; The DRM management server is to described CA﹠amp; Drm agent is distributed a sequence number, and writes down the matching relationship of described sequence number and described MAC Address; Otherwise return registration failure information to described set-top box, no longer carry out subsequent step.
Specifically, for example, encryption system of the present invention can comprise following server apparatus: the pre-encryption server of request program, CA﹠amp; DRM system management server, live encryption server, CA﹠amp; The DRM system client.And for example, network television system of the present invention comprises following server apparatus: service managing server, streaming media server, live telecast server, set-top box client.The present invention is also unrestricted to this.
For example, the treatment step of the method for the invention is as follows:
The first step, the network TV system service management server by with CA﹠amp; The interface of DRM system sends the set-top box MAC Address (being hardware address) that disposes in the network television system to CA﹠amp; The DRM system.
Second step, the set-top box electrifying startup, the set-top box application program sends the set-top box MAC Address to CA﹠amp by interface; DRM system client module.CA﹠amp; Drm agent with MAC Address as parameter to CA﹠amp; The registration of DRM management server is also applied for this CA﹠amp; DRM client's sequence number.
In the 3rd step,, then succeed in registration CA﹠amp if MAC Address is included in the set-top box MAC Address that disposes in the network television system in the register requirement parameter; The DRM management server is distributed a sequence number to client, and writes down the matching relationship of this sequence number and MAC Address; Otherwise return registration failure information to set-top box.
The 4th step, CA﹠amp; Drm agent sends sequence number to the set-top box application program by interface.The set-top box application program sends business authentication request as parameter to the network TV system service management server with sequence number, and parameter mainly comprises Username, Password, MAC Address, CA﹠amp; Drm agent sequence numbers etc. authenticate, and judge user's legitimacy;
In the 5th step, business authentication passes through, and service managing server writes down the matching relationship of this sequence number and set-top box MAC Address; Otherwise, to set-top box return authentication failure information.
In the 6th step, the service that the user can bring into use network television system to provide is provided for authentication and registration.
In system group network structural representation as shown in Figure 1, can finish network television system authentication and CA﹠amp; The simplest system of DRM system registry function comprises: the Ethernet broadband metropolitan area network; Service managing server SMS, user management, Certificate Authority, the set-top box that is used to finish network television system managed, CA﹠amp; Functions such as DRM management; Set-top box application software module STB MW is used to finish the multimedia function such as descrambling, decoding, broadcast of audio-video signal and finishes miscellaneous service alternately with system side and experience; CA﹠amp; DRM system management server CAS finishes CA﹠amp; The registration of drm agent, be responsible for encryption to control and authorization message, generation is used to control the product of predetermined person's granted access, the ECM of program and channel (Entitlement Control Message, the authorization control word), EMM control informations such as (Entitlement Management Message authorize describing word); CA﹠amp; Drm agent CASC finishes the EMM of system end distribution and the deciphering of ECM, and provides correct decruption key to the set-top box application software module.
Below be specific embodiment, as depicted in figs. 1 and 2, after system deployment finishes, can whole set-top box information of disposing in the system be imported at Business Management Platform by the operator.For example, form can followingly be provided with.
Message name operator numbering machine top box Mac address set-top box platform numbering keeps
STB_REG IPTV001 00-d0-d0-c8-03-e0 02 null
STB_REG IPTV001 02-00-d1-e6-a1-25? ? 02 null
…… …… …… …… ……
After finishing, input sends above-mentioned information to CA﹠amp by service managing server SMS; The DRM system management server.
The set-top box electrifying startup, difference initialization STB MW and CA﹠amp after self check is finished; DRM SC (being CASC);
Set-top box application software sends to CA﹠amp with set-top box Mac address by interface; DRM SC, CA﹠amp; DRM SC is to CA﹠amp; The DRM system management server sends login request message, RegistrationRequest (00-d0-d0-c8-03-e0 ...); Here, need to send the MAC Address parameter at least, other parameters are decided as required.
After succeeding in registration, CA﹠amp; The DRM management server is distributed a sequence number to client, for example, and 63788877.Respond register requirement, Registration Response (00-d0-d0-c8-03-e0,63788877 ...) and write down the matching relationship of this sequence number and MAC Address, generate a correspondence table and be stored in the database.Here, can adopt the form of database to realize.
CA﹠amp; Drm agent sends sequence number 63788877 to the set-top box application program by interface.The set-top box application program authenticates as parameter user name, user password, set-top box Mac, sequence number address etc. to the network TV system service management server.Authentication?Request(Username，Password，00-d0-d0-c8-03-e0，63788877，......)。
Business authentication passes through, and service managing server sends authentication request to set-top box and replys, and Authentication Response (ACK ...), and write down the matching relationship of this sequence number and set-top box MAC Address.
Therefore, the present invention provides a kind of CA﹠amp that realizes effectively in network television system; DRM relevant parameter process registration, network television system must think that programme content provides a safe and reliable guarantee.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. a method that realizes controlled access and system for numeral copyright management parameter registration is applied to network television system, and the server end of described network television system comprises service managing server and CA﹠amp; DRM management server, the client of described network television system comprise set-top box and application module and CA﹠amp; Drm agent; Described method comprises step:
A1, described CA﹠amp; DRM management server and described CA﹠amp; Drm agent is the Media Access Control address of memory machine top box respectively;
A2, described CA﹠amp; Drm agent is to described CA﹠amp; The DRM management server sends register requirement, and patent application serial numbers, and wherein, described register requirement comprises described CA﹠amp; The Media Access Control address of drm agent storage;
A3, described CA﹠amp; The DRM management server judges whether described Media Access Control address has been stored in described CA﹠amp; In the DRM management server, be then to described CA﹠amp; Drm agent is distributed sequence number, and writes down the matching relationship of described sequence number and described Media Access Control address; Otherwise registration failure is no longer carried out subsequent step;
A4, described application module send the business authentication request to described service managing server, wherein comprise described CA﹠amp; The described sequence number of drm agent;
A5, described service managing server judge whether described business authentication request is legal, and being then described network television system provides service for the user of described set-top box; Otherwise do not provide service.
2. method according to claim 1 is characterized in that, before the steps A 1, also comprise step: the user upgrades the information of described set-top box.
3. method according to claim 1 is characterized in that, steps A 1 specifically may further comprise the steps:
A11, described service managing server send to described CA﹠amp with the Media Access Control address of each set-top box; The DRM management server;
A12, set-top box send to described CA﹠amp by its application module with its Media Access Control address; Drm agent;
A13, described CA﹠amp; DRM management server and described CA﹠amp; Drm agent is stored the Media Access Control address of the set-top box of reception respectively.
4. method according to claim 1 is characterized in that steps A 1 also comprises step, described CA﹠amp; The DRM management server saves as the tabulation of set-top box Media Access Control address with the Media Access Control address of each set-top box;
And steps A 3 specifically comprises, described CA﹠amp; The DRM management server judges whether the described Media Access Control address in the register requirement is included in described CA﹠amp; In the set-top box Media Access Control address tabulation in the DRM management server, be then to succeed in registration, described CA﹠amp; The DRM management server is to described CA﹠amp; Drm agent is distributed a sequence number, and writes down the matching relationship of described sequence number and described Media Access Control address; Otherwise return registration failure information to described set-top box, no longer carry out subsequent step.
5. method according to claim 1 is characterized in that, in the steps A 3, and during registration failure, described CA﹠amp; The DRM management server also returns registration failure information to described set-top box.
6. method according to claim 1 is characterized in that, steps A 4 specifically may further comprise the steps:
A41, described CA﹠amp; Drm agent sends to described application module with described sequence number;
A42, described application module send the business authentication request to described service managing server, wherein comprise described sequence number.
7. method according to claim 1 is characterized in that, in the steps A 4, described business authentication request specifically comprises user name, password, described Media Access Control address, described sequence number.
8. method according to claim 1 is characterized in that, in the steps A 5, described service managing server is judged when described business authentication request is legal, described CA﹠amp; The DRM management server is to described CA﹠amp; Drm agent sends the program of encryption and the control information and the authorization message of channel, described CA﹠amp; Drm agent is decrypted, and decruption key is sent to described application module.
9. method according to claim 1 is characterized in that, in the steps A 5, described service managing server is judged when described business authentication request is legal, also writes down the matching relationship of described sequence number and described Media Access Control address.
10. method according to claim 1 is characterized in that, in the steps A 5, described service managing server is judged when described business authentication request is illegal, also to set-top box return authentication failure information.
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| CNB2007100766082A CN100531364C (en) | 2007-08-27 | 2007-08-27 | Method for implementing parameter registration of controlled access and digital publication right management system |
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| CNB2007100766082A CN100531364C (en) | 2007-08-27 | 2007-08-27 | Method for implementing parameter registration of controlled access and digital publication right management system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945102A (en) * | 2010-07-26 | 2011-01-12 | 中兴通讯股份有限公司 | Method, server and system for authenticating IPTV (intelligent personal television) user validation based on IMS (IP Multimedia Subsystem) |
| CN101719975B (en) * | 2009-11-25 | 2011-05-11 | 中国电信股份有限公司 | Remote management method and system of IPTV application |
| CN102196306A (en) * | 2010-03-10 | 2011-09-21 | 康佳集团股份有限公司 | Method and device for writing sequence number and media access control (MAC) address into Internet protocol television |
| CN103065071A (en) * | 2012-12-14 | 2013-04-24 | 北京思特奇信息技术股份有限公司 | Software copyright control method and system |
| CN103795821A (en) * | 2014-02-11 | 2014-05-14 | 江苏沁恒股份有限公司 | Method and device for applying for independent MAC address through Internet for networking product |
| CN103841436A (en) * | 2013-12-11 | 2014-06-04 | 惠州市伟乐科技有限公司 | Automatic network registering method for set top box |
| CN110867175A (en) * | 2019-10-17 | 2020-03-06 | 北京雷石天地电子技术有限公司 | KTV requesting system and method for connecting KTV set top box with server |
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- 2007-08-27 CN CNB2007100766082A patent/CN100531364C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719975B (en) * | 2009-11-25 | 2011-05-11 | 中国电信股份有限公司 | Remote management method and system of IPTV application |
| CN102196306A (en) * | 2010-03-10 | 2011-09-21 | 康佳集团股份有限公司 | Method and device for writing sequence number and media access control (MAC) address into Internet protocol television |
| CN101945102A (en) * | 2010-07-26 | 2011-01-12 | 中兴通讯股份有限公司 | Method, server and system for authenticating IPTV (intelligent personal television) user validation based on IMS (IP Multimedia Subsystem) |
| CN101945102B (en) * | 2010-07-26 | 2014-07-16 | 中兴通讯股份有限公司 | Method, server and system for authenticating IPTV (intelligent personal television) user validation based on IMS (IP Multimedia Subsystem) |
| CN103065071A (en) * | 2012-12-14 | 2013-04-24 | 北京思特奇信息技术股份有限公司 | Software copyright control method and system |
| CN103841436A (en) * | 2013-12-11 | 2014-06-04 | 惠州市伟乐科技有限公司 | Automatic network registering method for set top box |
| CN103841436B (en) * | 2013-12-11 | 2018-03-09 | 惠州市伟乐科技有限公司 | A kind of automatic network register method of set top box |
| CN103795821A (en) * | 2014-02-11 | 2014-05-14 | 江苏沁恒股份有限公司 | Method and device for applying for independent MAC address through Internet for networking product |
| CN110867175A (en) * | 2019-10-17 | 2020-03-06 | 北京雷石天地电子技术有限公司 | KTV requesting system and method for connecting KTV set top box with server |
| CN110867175B (en) * | 2019-10-17 | 2022-06-14 | 北京雷石天地电子技术有限公司 | KTV requesting system and method for connecting KTV set top box with server |
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| CN100531364C (en) | 2009-08-19 |
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