CN102457774B - Method, device and system for processing television program data - Google Patents
Method, device and system for processing television program data Download PDFInfo
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- CN102457774B CN102457774B CN201010520318.4A CN201010520318A CN102457774B CN 102457774 B CN102457774 B CN 102457774B CN 201010520318 A CN201010520318 A CN 201010520318A CN 102457774 B CN102457774 B CN 102457774B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000013011 mating Effects 0.000 claims description 11
- 238000003672 processing method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 12
- 238000010295 mobile communication Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 101100087388 Oryza sativa subsp. japonica UAM1 gene Proteins 0.000 description 1
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Abstract
The invention discloses a method, a device and a system for processing television program data, which are used for assisting a terminal which does not have a function of receiving a broadcast television program in playing a television program. The method comprises the following steps that: the device for processing the television program data receives a television program data request message which is sent by the terminal and carried with a terminal identifier, and selects a user authentication module (UAM) matched with the terminal identifier from UAMs in the device; the device determines a television program service key (MSK) acquired by the selected UAM; the device receives scrambled television program data and a program steam key (MTK) which are broadcast by a television program source server through a multimedia broadcast receiving module arranged in the device; and the device decrypts the MTK by using the MSK to acquire a control character (CK), descrambles the scrambled television program data by using the CK and sends the descrambled television program data to a television program data receiving terminal so as to play the television program data.
Description
Technical field
The present invention relates to digital television techniques field, relate in particular to a kind of processing method, Apparatus and system of television programme data.
Background technology
Along with the lifting of the universal and terminal capabilities of terminal, user is no longer confined to only carry out voice call to the scope of application of terminal, and also comprise and utilize terminal online, and browsing multimedia file etc.Recently, the new function of more popular terminal utilizes terminal to order and enjoy mobile phone TV services exactly, receive and play the TV programme of broadcast, this function makes terminal possess multimedia file receiving ability flexibly, therefore once releasing the welcome that has just obtained user.
Terminal by mobile phone TV services, receive broadcast TV programme schematic diagram as shown in Figure 1, terminal need to from mobile communications network obtain user key (MUK) and encrypt business cipher key (MSK), then receive scrambled television program data and the program current cipher key (MTK) of radio network broadcast.Wherein, MUK is generally the SIM/USIM Information generation according to terminal, thereby its MSK after for enabling decryption of encrypted obtains MSK; MSK is for deciphering the controlled word CK of MTK, and this CK is for carrying out descrambling to scrambled television program data.
In order to obtain the television programme data of radio network broadcast, in terminal, need module (this module is generally " TV programme receiving chip ", also claims multimedia broadcasting receiver module) and the user authentication module UAM of the TV programme of integrated reception broadcast.Wherein, multimedia broadcasting receiver module is responsible for receiving scrambled television program data and the MTK of broadcast, and UAM is for obtaining and preserve MUK and MSK.
In the prior art, due to reception and broadcasting or a kind of newer function of terminal to the TV programme of broadcast, therefore, the module of the TV programme that receives broadcast is not also set in a lot of terminals, this just causes the terminal that this module is not set can not receive and play TV programme.
Summary of the invention
The embodiment of the present invention provides a kind of processing method, Apparatus and system of television programme data, does not possess the terminal TV reception of the TV programme receiving function of broadcast in order to assistance.
The embodiment of the present invention is by the following technical solutions:
A kind of processing method of television programme data, comprise: the television programme data request message that carries terminal iidentification that the processing unit receiving terminal of television programme data sends, and choose the UAM mating with described terminal iidentification from be arranged on the user authentication module UAM described processing unit; The television program service key MSK that the definite described UAM choosing of described processing unit obtains; And described processing unit is by being arranged on scrambled television program data and the program current cipher key MTK of the multimedia broadcasting receiver module received television program source server broadcast in described device; Described processing unit utilizes MSK to be decrypted controlled word CK to MTK, and utilizes CK to carry out sending to television programme data receiving terminal to play after descrambling to described scrambled television program data.
A processing unit for television programme data, comprising: message sink unit, the television programme data request message that carries terminal iidentification sending for receiving terminal; UAM chooses unit, for from being arranged on the user authentication module UAM of described processing unit, chooses the UAM mating with the terminal iidentification of message sink unit reception; MSK determining unit, the television program service key MSK that the UAM that chooses unit selection for definite UAM obtains; Multimedia broadcasting receiving element, for scrambled television program data and the program current cipher key MTK of received television program source server broadcast; Decryption unit, is decrypted controlled word CK for the MTK that utilizes the definite MSK of MSK determining unit to receive multimedia broadcasting receiving element; Descrambling unit, for utilizing the CK that decryption unit obtains to carry out descrambling to the scrambled television program data of multimedia broadcasting receiving element reception; Transmitting element, sends to television programme data receiving terminal to play for the television programme data after the descrambling that descrambling unit is obtained.
A treatment system for television programme data, comprises the processing unit of a television programme data and at least one terminal, wherein: and described terminal, for send the television programme data request message that carries terminal iidentification to described processing unit, described processing unit, be used for from being arranged on the user authentication module UAM of described processing unit, choose the UAM mating with the terminal iidentification carrying in described message, the television program service key MSK that definite described UAM choosing obtains, by being arranged on scrambled television program data and the program current cipher key MTK of the multimedia broadcasting receiver module received television program source server broadcast in described device, and utilize MSK to be decrypted controlled word CK to MTK, and utilize CK to carry out sending to television programme data receiving terminal to play after descrambling to described scrambled television program data.
The beneficial effect of the embodiment of the present invention is as follows:
The such scheme that the embodiment of the present invention provides is by adopting the UAM that arranges in the processing unit of television programme data to obtain MSK for terminal, and receive scrambled television program data and MTK by the multimedia broadcasting receiver module arranging in processing unit, further utilize MSK that MTK is decrypted and is obtained after CK, recycling CK carries out sending to television programme data receiving terminal to play after descrambling to scrambled television program data, even if thereby terminal does not possess the receiving function of the TV programme of UAM and broadcast, this scheme that adopts the embodiment of the present invention to provide, this processing unit also can assist terminal to realize watching TV programme.
Accompanying drawing explanation
Fig. 1 is that in prior art, terminal receives the schematic diagram of the TV programme of broadcast by mobile phone TV services;
The idiographic flow schematic diagram of the processing method of a kind of television programme data that Fig. 2 provides for the embodiment of the present invention;
In the method that Fig. 3 provides for the embodiment of the present invention, processing unit utilizes UAM to obtain the process schematic diagram of MSK;
The concrete structure schematic diagram of the processing unit of a kind of television programme data that Fig. 4 provides for the embodiment of the present invention;
A kind of actual application environment schematic diagram of the processing scheme of the television programme data that Fig. 5 a provides for the embodiment of the present invention;
The concrete application flow schematic diagram of the scheme that Fig. 5 b provides for the embodiment of the present invention in environment as shown in Fig. 4 a;
The concrete structure schematic diagram of the treatment system of a kind of television programme data that Fig. 6 provides for the embodiment of the present invention.
Embodiment
The terminal TV reception that does not possess the TV programme receiving function of broadcast in order to realize assistance, inventor considers to assist this terminal TV reception by a device that possesses the TV programme receiving function of UAM and broadcast.The integrated not available UAM of this terminal and multimedia broadcasting receiver module in this device, terminal only need connect with this device, and this device can be realized functions such as the reception of scrambled television program data and descramblings.
Particularly, based on said apparatus, first the embodiment of the present invention provides a kind of processing method of television programme data, and the idiographic flow schematic diagram of the method as shown in Figure 2, comprises the following steps:
Step 21, the television programme data request message that carries terminal iidentification that the processing unit of television programme data (hereinafter to be referred as processing unit) receiving terminal sends;
Step 22, the UAM that processing unit mates from being arranged in the user authentication module UAM self, choosing the terminal iidentification that carries with the request message receiving;
Step 23, the television program service key MSK that the definite UAM choosing of processing unit obtains;
Step 24, processing unit is by being arranged on scrambled television program data and the program current cipher key MTK of the multimedia broadcasting receiver module received television program source server broadcast in self;
Step 25, processing unit utilizes MSK to be decrypted controlled word CK to MTK, and utilize CK to carry out sending to television programme data receiving terminal to play after descrambling to the scrambled television program data receiving, wherein, the television programme data receiving terminal here can be this terminal, also can identify indicated terminal for other designated terminals that this terminal sends.
For step 22, this processing unit determines that the process of the UAM mating with terminal iidentification can have multiple implementation.
Such as, a plurality of UAM that this processing unit can directly arrange from self, choose a UAM and distribute to this terminal.And hypothesis is before the said method that adopts the embodiment of the present invention to provide, terminal was carried out obtaining of television programme data by this processing unit, in order to save processing resource, can be to provided the UAM of service and the corresponding relation of terminal to bind for terminal in the embodiment of the present invention, and storage terminal sign and the corresponding relation of distributing to the UAM sign of terminal.Thereby follow-up when this terminal continuation employing said method is realized TV programme broadcasting, just can judge in this pre-stored corresponding relation whether have the UAM sign corresponding with the terminal iidentification carrying in above-mentioned request message; And judgment result is that while being, directly choose the UAM corresponding with this terminal iidentification and identify indicated UAM; And in judged result result while being no, then in a plurality of UAM that consider to arrange, choose at random a UAM from processing unit.
In embodiments of the present invention, in order to economize on resources further, for providing in the UAM serving, terminal can also store the used MSK of this terminal in advance, thereby after determining the UAM mating with terminal, in above-mentioned steps 23, processing unit determines that the MSK that UAM obtains specifically can comprise the steps:
First, in the UAM that processing unit judgement is chosen, whether store MSK;
Then, judgment result is that while being, directly determine the MSK of this UAM storage, thereby without regaining MSK from television program service server again, therefore saved a part of resource, and in definite result, while being no, by this UAM, realize after the registration subscription television program of terminal on television program service server, then determine that this UAM obtains by television program service server, offer the MSK of this terminal.
Particularly, the processing unit described in above-mentioned steps 21,22,23 obtains terminal iidentification, determines the UAM mate with terminal iidentification and can adopt following sub-step as shown in Figure 3 by the process that definite UAM obtains MSK:
Sub-step 31: first, processing unit obtains terminal iidentification;
Sub-step 32: then, judge pre-stored terminal iidentification and distribute in the corresponding relation of sign of UAM of terminal, whether exist with obtain this identify the sign of corresponding UAM, judgment result is that while being, carry out sub-step 33, otherwise, sub-step 36 carried out;
Sub-step 33: judgment result is that while being, before being described, this terminal utilized this processing unit to carry out TV reception, therefore further determine in the indicated UAM of the sign of UAM of the sign correspondence of obtaining and whether store MSK, and in definite result when being, execution step 34, otherwise, carry out sub-step 35;
In embodiments of the present invention, because processing unit is except sending to the television programme data after descrambling above-mentioned terminal, can also send to other designated terminals, therefore just need above-mentioned terminal to send other designated terminal signs to processing unit, thereby processing unit can be according to other designated terminals sign receiving, realize this that the television programme data obtaining after descrambling is sent to reception and identify indicated terminal.For fear of the terminal of not ordering mobile phone TV services, watch TV programme, in the embodiment of the present invention, can also further to the authority of this designated terminal, judge, when determine this designated terminal sign be contained in processing unit storage order in the terminal iidentification of TV programme time, processing unit just the television programme data obtaining after descrambling is sent to reception this identify indicated terminal.
In embodiments of the present invention, processing unit and terminal can be, but not limited to short distance connected mode based on bluetooth or WiFi etc. and carry out information interaction, and, terminal described in said method is the terminal of the TV programme receiving function that does not possess UAM and broadcast, or this terminal also can be for possessing the terminal of the TV programme receiving function of UAM and broadcast.When this terminal is while possessing the terminal of TV programme receiving function of UAM and broadcast, the said method that adopts the embodiment of the present invention to provide can effectively reduce this terminal required required processing resource of reception, descrambling television programme data when playing television programme data.
The said method providing corresponding to the embodiment of the present invention, the embodiment of the present invention also provides a kind of processing unit of television programme data, and the concrete structure schematic diagram of this device as shown in Figure 4, comprises following functions unit:
UAM chooses unit 42, for from being arranged on the user authentication module UAM of processing unit, chooses the UAM mating with the terminal iidentification of message sink unit 41 receptions;
MSK determining unit 43, chooses for determining by UAM the MSK that the UAM that chooses unit 42 obtains;
Multimedia broadcasting receiving element 44, for scrambled television program data and the program current cipher key MTK of received television program source server broadcast;
Descrambling unit 46, for utilizing the CK that decryption unit 45 obtains to carry out descrambling to the scrambled television program data of multimedia broadcasting receiving element 44 receptions;
Transmitting element 47, for the television programme data after the descrambling that descrambling unit 46 is obtained, send to television programme data receiving terminal to play, wherein, the receiving terminal here can be this terminal, also can identify indicated terminal for other designated terminals that this terminal sends.
Corresponding to UAM, choose a kind of implementation of unit 42 functions, in the embodiment of the present invention, UAM can be chosen to unit 42 Further Divisions is following functions module:
Whether the first judge module, for judging pre-stored terminal iidentification and the corresponding relation of distributing to the UAM sign of terminal, there is the UAM sign corresponding with the terminal iidentification carrying in above-mentioned request message;
Determination module, while for judgment result is that of obtaining at the first judge module being, choosing this corresponding UAM and identifies indicated UAM;
Choose module, while being no for the judged result result obtaining at the first judge module, in a plurality of UAM that arrange, choose at random the UAM that a UAM mates as the terminal iidentification with carrying in request message from processing unit.
Corresponding to a kind of implementation of MSK determining unit 43 functions, in the embodiment of the present invention, MSK determining unit can also be divided into following functions module:
The second judge module, for judging that UAM chooses the definite UAM in unit and whether stores MSK;
MSK determination module, while for judgment result is that of obtaining at the second judge module being, obtains the MSK of storage;
Registration and order module, when the definite result that is used for obtaining at the second judge module is no, by definite UAM, realize after the registration subscription television program of terminal on television program service server, that determines that UAM obtains offers the MSK of terminal by television program service server.
Preferably, when the indicated terminal of the sign that the television programme data after descrambling need to be sent to receiving element to receive, for fear of being sent to, television programme data do not possess the terminal of playing TV programme authority, above-mentioned processing unit can further include determining unit, before the indicated terminal of the sign that at transmitting element, television programme data sent to sign receiving element to receive, determine processing unit storage order in the terminal iidentification of TV programme, comprise the sign that this identifies indicated terminal.
The such scheme providing with the embodiment of the present invention below in practice be applied as example, describe the practical application flow process of the such scheme that the embodiment of the present invention provides in detail.
As shown in Figure 5 a, this applied environment mainly comprises 4 parts, the i.e. processing unit of radio network, mobile communications network, TV programme and terminal to a kind of actual application environment schematic diagram of the such scheme that the embodiment of the present invention provides.Wherein, the processing unit of TV programme can comprise a multimedia broadcasting receiver module, one or more UAM (UAM1～UAMn) and a distribution control module.Terminal in this environment is the mobile phone (such as the mobile phone 1 in figure, mobile phone 2...) that does not possess multimedia broadcasting receiver module and UAM, on this mobile phone, can adopt software to realize a transmit control module, the television programme data after the descrambling that this transmit control module is mainly used in the processing unit of TV programme to send is play.
A mobile phone 1 that transmit control module is installed can pass through following steps as shown in Figure 5 b, and realization is TV reception under the assistance of the processing unit of TV programme:
Whether step 57, have MSK in the UAM of inspection and SIM/USIM information matches, if had, performs step 54, otherwise, perform step 58;
Owing to a plurality of UAM can being set in processing unit, therefore, if when mobile phone 2 is to processing unit request acquisition television programme data, by repeating above-mentioned steps 51～58, also can realize and assist mobile phone 2 TV receptions.
The mobile phone quantity that processing unit can be supported at one time depends on the short bandwidth that is connected between the quantity of UAM and processing unit and mobile phone.
It should be noted that, in embodiments of the present invention, after realizing descrambling scrambled television program data, distribution control module also can send to other-end to play television programme data.Other-end can be mobile phone, can be also other forms of device, and such as PC terminal, digital photo frame etc. have the terminal of television programme data ability to play.
The method and apparatus providing corresponding to the embodiment of the present invention, the embodiment of the present invention also provides a kind for the treatment of system of television programme data, the concrete structure schematic diagram of this system as shown in Figure 6, processing unit 61 and at least one terminal 62 of comprising a television programme data, wherein, terminal 62 sends for the processing unit 61 to television programme data the television programme data request message that carries terminal iidentification, and the processing unit 61 of television programme data is for from being arranged on the user authentication module UAM of processing unit 61 of television programme data, choose the UAM mating with the terminal iidentification carrying in request message, the MSK that definite UAM choosing obtains, by being arranged on scrambled television program data and the program current cipher key MTK of the multimedia broadcasting receiver module received television program source server broadcast in the processing unit 61 of television programme data, and utilize MSK to be decrypted controlled word CK to MTK, and utilize CK to carry out sending to television programme data receiving terminal to play after descrambling to scrambled television program data, wherein, the receiving terminal here can be this terminal, also can identify indicated terminal for other designated terminals that this terminal sends.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (11)
1. a processing method for television programme data, is characterized in that, comprising:
The processing unit of television programme data receives the television programme data request message that carries terminal iidentification of the terminal transmission having connected, and choose the UAM mating with described terminal iidentification from be arranged on the user authentication module UAM described processing unit, described terminal is not for possessing the terminal of UAM and multimedia broadcasting receiver module;
The television program service key MSK that the definite described UAM choosing of described processing unit obtains; And
Described processing unit is by being arranged on scrambled television program data and the program current cipher key MTK of the multimedia broadcasting receiver module received television program source server broadcast in described device;
Described processing unit utilizes MSK to be decrypted controlled word CK to MTK, and utilizes CK to carry out sending to television programme data receiving terminal to play after descrambling to described scrambled television program data.
2. the method for claim 1, is characterized in that, described processing unit is chosen the UAM mating with described terminal iidentification and specifically comprised from be arranged on the UAM described device:
Described processing unit judges pre-stored terminal iidentification and distributes in the corresponding relation of UAM sign of terminal whether have the UAM sign corresponding with the terminal iidentification carrying in described message;
Judgment result is that while being, the UAM that chooses described correspondence identifies indicated UAM; And
In judged result result, while being no, in a plurality of UAM that arrange, choose at random the UAM that a UAM mates as the terminal iidentification with carrying in described message from described processing unit.
3. method as claimed in claim 1 or 2, is characterized in that, the MSK that the definite described UAM choosing of described processing unit obtains specifically comprises:
In the UAM that described processing unit judgement is chosen, whether store MSK;
The MSK providing for described terminal that the MSK of storage is defined as to UAM obtains is being provided while being; And
In definite result, while being no, by this UAM, realize after the registration subscription television program of terminal on television program service server, that determines that UAM obtains offers the MSK of described terminal by television program service server.
4. the method for claim 1, is characterized in that, described receiving terminal is described terminal, or other designated terminals that described terminal sends identify indicated terminal.
5. method as claimed in claim 4, is characterized in that, before the television programme data obtaining is sent to the indicated terminal of the described sign of reception, also comprises after descrambling:
Described device determine self storage order in the terminal iidentification of TV programme, comprise described other designated terminals signs.
6. a processing unit for television programme data, is characterized in that, comprising:
Message sink unit, for receiving the television programme data request message that carries terminal iidentification of the terminal transmission having connected, described terminal is not for possessing the terminal of UAM and multimedia broadcasting receiver module;
UAM chooses unit, for from being arranged on the user authentication module UAM of described processing unit, chooses the UAM mating with the terminal iidentification of message sink unit reception;
MSK determining unit, the television program service key MSK that the UAM that chooses unit selection for definite UAM obtains;
Multimedia broadcasting receiving element, for scrambled television program data and the program current cipher key MTK of received television program source server broadcast;
Decryption unit, is decrypted controlled word CK for the MTK that utilizes the definite MSK of MSK determining unit to receive multimedia broadcasting receiving element;
Descrambling unit, for utilizing the CK that decryption unit obtains to carry out descrambling to the scrambled television program data of multimedia broadcasting receiving element reception;
Transmitting element, sends to television programme data receiving terminal to play for the television programme data after the descrambling that descrambling unit is obtained.
7. processing unit as claimed in claim 6, is characterized in that, UAM chooses unit and specifically comprises:
Whether the first judge module, for judging pre-stored terminal iidentification and the corresponding relation of distributing to the UAM sign of terminal, there is the UAM sign corresponding with the terminal iidentification carrying in described message;
Determination module, while for judgment result is that of obtaining at the first judge module being, the UAM that chooses described correspondence identifies indicated UAM;
Choose module, while being no for the judged result result obtaining at the first judge module, in a plurality of UAM that arrange, choose at random the UAM that a UAM mates as the terminal iidentification with carrying in described message from described processing unit.
8. the processing unit as described in claim 6 or 7, is characterized in that, MSK determining unit specifically comprises:
The second judge module, for judging whether the UAM that UAM chooses unit selection stores MSK;
MSK determination module, while for judgment result is that of obtaining at the second judge module being, obtains the MSK of storage;
Registration and order module, when the definite result that is used for obtaining at the second judge module is no, by definite UAM, realize after the registration subscription television program of terminal on television program service server, that determines that UAM obtains offers the MSK of described terminal by television program service server.
9. processing unit as claimed in claim 6, is characterized in that, described receiving terminal is described terminal, or other designated terminals that described terminal sends identify indicated terminal.
10. processing unit as claimed in claim 9, is characterized in that, also comprises:
Determining unit, before the indicated terminal of the described sign that at described transmitting element, television programme data sent to sign receiving element to receive, determine described processing unit storage order in the terminal iidentification of TV programme, comprise described other designated terminals signs.
The treatment system of 11. 1 kinds of television programme data, is characterized in that, comprises processing unit and at least one terminal of a television programme data, wherein:
Described terminal, sends for the described processing unit to having connected the television programme data request message that carries terminal iidentification, and described terminal is not for possessing the terminal of UAM and multimedia broadcasting receiver module;
Described processing unit, be used for from being arranged on the user authentication module UAM of described processing unit, choose the UAM mating with the terminal iidentification carrying in described message, the television program service key MSK that definite described UAM choosing obtains, by being arranged on scrambled television program data and the program current cipher key MTK of the multimedia broadcasting receiver module received television program source server broadcast in described device, and utilize MSK to be decrypted controlled word CK to MTK, and utilize CK to carry out sending to television programme data receiving terminal to play after descrambling to described scrambled television program data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010520318.4A CN102457774B (en) | 2010-10-20 | 2010-10-20 | Method, device and system for processing television program data |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010520318.4A CN102457774B (en) | 2010-10-20 | 2010-10-20 | Method, device and system for processing television program data |
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| CN102457774A CN102457774A (en) | 2012-05-16 |
| CN102457774B true CN102457774B (en) | 2014-03-12 |
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| CN201010520318.4A Expired - Fee Related CN102457774B (en) | 2010-10-20 | 2010-10-20 | Method, device and system for processing television program data |
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| CN104104996A (en) * | 2013-04-03 | 2014-10-15 | 中国移动通信集团公司 | Program stream decryption method, device and terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1764268A (en) * | 2004-10-22 | 2006-04-26 | 北京握奇数据系统有限公司 | CATV signal receiving and processing method |
| CN101166259A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Mobile phone TV service protection method, system, mobile phone TV server and terminal |
| CN101594514A (en) * | 2009-06-26 | 2009-12-02 | 中兴通讯股份有限公司 | Data guard method, terminal and system when mobile TV data card is realized business |
| CN101854362A (en) * | 2010-05-21 | 2010-10-06 | 中兴通讯股份有限公司 | Data card, data card system and method for realizing multimedia service |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100911296B1 (en) * | 2007-12-11 | 2009-08-11 | 티유미디어 주식회사 | Prepaid broadcasting receiver and subscriber management system and method thereof in digital multimedia broadcasting service |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1764268A (en) * | 2004-10-22 | 2006-04-26 | 北京握奇数据系统有限公司 | CATV signal receiving and processing method |
| CN101166259A (en) * | 2006-10-16 | 2008-04-23 | 华为技术有限公司 | Mobile phone TV service protection method, system, mobile phone TV server and terminal |
| CN101594514A (en) * | 2009-06-26 | 2009-12-02 | 中兴通讯股份有限公司 | Data guard method, terminal and system when mobile TV data card is realized business |
| CN101854362A (en) * | 2010-05-21 | 2010-10-06 | 中兴通讯股份有限公司 | Data card, data card system and method for realizing multimedia service |
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