CN103596050A - Digital television signal reception system and reception method thereof - Google Patents
Digital television signal reception system and reception method thereof Download PDFInfo
- Publication number
- CN103596050A CN103596050A CN201310050681.8A CN201310050681A CN103596050A CN 103596050 A CN103596050 A CN 103596050A CN 201310050681 A CN201310050681 A CN 201310050681A CN 103596050 A CN103596050 A CN 103596050A
- Authority
- CN
- China
- Prior art keywords
- gateway device
- terminal
- program
- data
- digital television
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012795 verification Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000013475 authorization Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a digital television signal reception system and a reception method thereof. The method comprises steps that: a terminal enters a work state; authorization management information is acquired by gateway equipment and is parsed to acquire first secret data; a program list is acquired from the gateway equipment by the terminal; a watching program is selected by a user; program information is sent to the gateway equipment by the terminal; a frequency point of the program is locked by the gateway equipment according to the program information; an SI table related to the selected program and authorization control information are acquired by the gateway equipment and are parsed to acquire second secret data; the first secret data and the second secret data are decrypted by the gateway equipment to acquire a secret key used for descrambling the selected program; the secret key is used for descrambling the selected program by the gateway equipment to acquire program data after descrambling; the program data after descrambling is sent to the terminal by the gateway equipment; the program data is received by the terminal, and decoding and program playing are carried out. The method solves a problem that equipment such as a computer, a handset and a flat computer can not receive digital television signals to watch programs.
Description
Technical field
The present invention relates to digital TV field, relate in particular to a kind of digital television signal receiving system and method for reseptance thereof.
Background technology
Fast development along with network technology and chip technology, the equipment such as television set, computer, mobile phone, panel computer all possess network function, and the broadcasting video-audio program of can decoding, television set, computer, mobile phone and panel computer have become the Main Means that people receive video-audio program.Digital television program is as one of maximum video and audio content of audient, but, due to the special scrambling system of digital television system, only have and support the chip of digital television standard to watch digital television program by descrambling, therefore, only have digital television all-in-one or Set Top Box ability receiving digital television program, do not support computer chip, chip for cell phone and the dull and stereotyped computer chip of digital television standard cannot directly watch digital television program.In addition, along with the continuous upgrading of digital television techniques and chip technology, the old digital television chip of before producing also may cannot be watched digital television program because meeting the requirement of new Digital Television encryption and decryption technology.
Summary of the invention
Object of the present invention is exactly because of its master chip, not support digital television standard and cannot watch digital TV contents in order to solve the equipment such as current computer, mobile phone, panel computer, and old digital television chip requires to watch the problems such as digital television program because not meeting new Digital Television encryption and decryption technology, a kind of digital television signal receiving system and method for reseptance thereof have been proposed, it makes computer, mobile phone, panel computer and adopts the equipment such as television set of old digital television chip in the situation that not revising hardware configuration, receiving digital television program.
To achieve these goals, the present invention adopts following technical scheme:
, it comprises:
S1: terminal enters operating state;
S2: gateway device obtains Entitlement Management Message EMM and resolves and obtains the first secret data;
S3: terminal is obtained the rendition list from gateway device;
S4: user selects the program that will watch in terminal;
S5: the programme information that terminal transmission will be watched program is to gateway device;
S6: gateway device received RF signal, according to programme information locking program place frequency;
S7: gateway device obtains the SI table relevant with selecting program and Entitlement Control Message ECM and resolves, and obtains the second secret data;
S8: gateway device is deciphered the first secret data and the second secret data, obtains the ciphering key W that the selected program of descrambling is used;
S9: gateway device utilizes the selected program of ciphering key W descrambling, obtains the program data after descrambling;
S10: the program data after gateway device transmission descrambling is to terminal;
S11: terminal program receiving data, decoding broadcast program.
Before described step S2, also comprise, condition reception front end and gateway device carry out handshake communication, confirm the legitimacy of gateway device.
The step of described handshake communication is:
1) condition reception front end sends handshake data to gateway device by IP network;
2) gateway device is resolved the verification msg that handshake data obtains key and the encrypted form of encrypted form;
3) key of gateway device enabling decryption of encrypted form and the verification msg of encrypted form, obtain the verification msg of decrypted form;
4) verification msg that gateway device transmission deciphering obtains is to condition reception front end;
5) condition reception front end is according to the legitimacy of the verification msg judgement gateway device of receiving.
Described step S2 is specially, and the Entitlement Management Message EMM that gateway device is sent by IP network or Broadcasting Cable Network condition of acceptance receiving front-end also resolves.
Described step S3 further comprises,
A) whether terminal judges self there is the rendition list, if exist, and execution step b); If do not exist, execution step c);
B) terminal reads the program information data of self and resolves, and exits step S3;
C) terminal is to the list of gateway device request program downloading;
D) gateway device judges in the memory of gateway device whether have the rendition list, if having, and execution step e); Otherwise execution step f);
E) gateway device sends the rendition list to terminal, exits step S3;
F) gateway device locking dominant frequency point obtains NIT table from radiofrequency signal;
G) gateway device is resolved NIT table, obtains the frequency point information in radiofrequency signal;
H) the gateway device frequency in locking radio frequency signal one by one;
I) gateway device obtains current locked frequency point PAT, PMT and SDT show and resolve, and obtain the programme information of current locked frequency point;
J) judge that whether all frequencies all carried out lock operation, if so, performed step k); If not, execution step h);
K) gateway device sends programme information to terminal, and the programme information that preservation is obtained is in the memory of gateway device.
Described step S10 is further: gateway device is used the public key encryption program data of terminal, and the program data after encrypting is sent to terminal;
Described step S12 is further: terminal receives the program data of encrypting, and uses the program data of the private key enabling decryption of encrypted of terminal, and the program data that deciphering is obtained is decoded and plays.
Described terminal public key is when terminal and gateway device connect, and by terminal, sends to gateway device; The data of using described terminal public key to encrypt can be used the private key of described terminal to be decrypted.
Described gateway device is regularly carried out described step S2.
Described SI table at least comprises a kind of in PAT, PMT, SDT, CAT table.
It comprises at least one gateway device, at least one terminal and at least one condition reception front end; Wherein,
Described gateway device at least comprises tuning demodulation module, demultiplexing module, deciphering module, descrambling module, processing unit and mixed-media network modules mixed-media, gateway device is connected by IP network is two-way with at least one terminal, and Network Management Equipment links with at least one condition reception front end simultaneously; Gateway device receiving digital television program data from the radiofrequency signal of Broadcasting Cable Network carries out descrambling, and the program data after descrambling is issued to terminal and decode and play.；
Described terminal receives the program stream that gateway device is sent, decoding broadcast program;
Described condition reception front end is connected by IP network is two-way with at least one gateway device, and condition reception front end generates Entitlement Control Message ECM and delivers to Broadcasting Cable Network, generates Entitlement Management Message EMM and issues gateway device by Broadcasting Cable Network or IP network; Described condition reception front end also carries out handshake communication with gateway device, and the legitimacy of gateway device is verified.
Described gateway device also comprises key production module, for the key that generates the key of deciphering secret data and generate the key of deciphering handshake data encrypted form.
Described gateway device also comprises encrypting module, for encrypting the program data obtaining after descrambling.
Described terminal is at least a kind of in television set, computer, mobile phone and panel computer.
The invention has the beneficial effects as follows: the present invention is by gateway device receiving digital television signal from Broadcasting Cable Network, the ciphering key W that decrypt authorized information acquisition descrambling program is used, and utilize ciphering key W descrambling program transport streams, again the program transport streams after descrambling is sent to the terminal broadcasting of decoding, solved the computer of not supporting digital television standard, mobile phone, panel computer and the equipment such as television set that do not meet the old digital television chip of employing that Digital Television new technology requires cannot be watched the problem of digital television program in the situation that not changing hardware, implement simple and convenient, cost is low, and gateway device of the present invention is only responsible for the program stream after descrambling to send to terminal, and terminal is decoded and play, can effectively reduce the data volume size of transmitting between gateway device and terminal, reduced transfer of data taking bandwidth.In addition, the present invention also service condition receiving front-end verifies the legitimacy of gateway device, guarantees to only have legal gateway device just can watch digital television program, has guaranteed the interests of operator, safe.Visible, the present invention has the advantages such as enforcement is simple and convenient, the network bandwidth takies less, fail safe height.
Accompanying drawing explanation
Fig. 1 is the structural representation of system of the present invention;
Fig. 2 is gateway device structural representation in system of the present invention;
Fig. 3 is the method for the invention embodiment 1 flow chart;
Fig. 4 is the method for the invention embodiment 2 flow charts;
Fig. 5 is condition reception front end of the present invention and gateway device handshake communication flow chart;
Fig. 6 is that terminal of the present invention is obtained the rendition list flow chart;
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and illustrated embodiment of the present invention and explanation thereof are used for explaining the present invention, does not form inappropriate limitation of the present invention.
As shown in Figure 1, digital television signal receiving system, it comprises at least one gateway device, at least one terminal and at least one condition reception front end; Wherein,
Described gateway device at least comprises tuning demodulation module, demultiplexing module, deciphering module, descrambling module, processing unit and mixed-media network modules mixed-media, gateway device is connected by IP network is two-way with at least one terminal, and Network Management Equipment links with at least one condition reception front end simultaneously; Gateway device receiving digital television program data from the radiofrequency signal of Broadcasting Cable Network carries out descrambling, and the program data after descrambling is issued to terminal and decode and play;
Described terminal receives the program stream that gateway device is sent, decoding broadcast program;
Described condition reception front end is connected by IP network is two-way with at least one gateway device, and condition reception front end generates Entitlement Control Message ECM and delivers to Broadcasting Cable Network, generates Entitlement Management Message EMM and issues gateway device by Broadcasting Cable Network or IP network; Described condition reception front end also carries out handshake communication with gateway device, and the legitimacy of gateway device is verified.
Described gateway device also comprises key production module, for the key that generates the key of deciphering secret data and generate the key of deciphering handshake data encrypted form.
Described gateway device also comprises encrypting module, for encrypting the program data obtaining after descrambling.
Described terminal is at least a kind of in television set, computer, mobile phone and panel computer.
As shown in Figure 2, described gateway device comprises tuning demodulation module, demultiplexing module, descrambling module, key production module, deciphering module, processing unit and mixed-media network modules mixed-media, wherein,
Tuning demodulation module is connected with demultiplexing module is unidirectional, and received RF digital television signal sends to demultiplexing module after tuning, demodulation;
Demultiplexing module is connected with descrambling module, and the digital television signal of demultiplexing module after to demodulation carries out demultiplexing, filters out authorization message and transfers to processing unit to resolve, and program transport streams is sent to descrambling module simultaneously;
Descrambling module is connected with deciphering module, the ciphering key W of the descrambling program that receiving and deciphering module is sent, and export program stream after descrambling to terminal;
Described descrambling module is connected with key production module, receives the required key of descrambling secret data that key production module produces, and the secret data that receiving terminal is sent simultaneously utilizes the secret key decryption secret data of receiving, obtains the required ciphering key W of descrambling program.
Described processing unit is connected with tuning demodulation module, demultiplexing module, descrambling module, key production module, deciphering module and encrypting module are two-way by bus, obtain each module information, each module is configured and carries out data analysis processing.
Described mixed-media network modules mixed-media is connected with demultiplexing module, descrambling module, deciphering module and encrypting module respectively, for realizing the data communication between gateway device and terminal equipment, gateway device and condition reception front end.
Described gateway device also comprises encrypting module, and encrypting module is connected with descrambling module, and the program data that descrambling module is sent is encrypted, and the program data after encrypting is sent to terminal.
Embodiment 1:
As shown in Figure 3, digital television signal receiving method, its step is:
S101: terminal enters operating state;
S102: gateway device obtains Entitlement Management Message EMM and resolves and obtains the first secret data;
S103: terminal is obtained the rendition list from gateway device;
S104: user selects the program that will watch in terminal;
S105: the programme information that terminal transmission will be watched program is to gateway device;
S106: gateway device received RF signal, according to programme information locking program place frequency;
S107: gateway device obtains the SI table relevant with selecting program and Entitlement Control Message ECM and resolves, and obtains the second secret data;
S108: gateway device is deciphered the first secret data and the second secret data, obtains the ciphering key W that the selected program of descrambling is used;
S109: gateway device utilizes the selected program of ciphering key W descrambling, obtains the program data after descrambling;
S110: the program data after gateway device transmission descrambling is to terminal;
S111: terminal program receiving data, decoding broadcast program.
Embodiment 2:
As shown in Figure 4, digital television signal receiving method, its step is:
S201: terminal enters operating state;
S202: gateway device obtains Entitlement Management Message EMM and resolves and obtains the first secret data;
S203: terminal is obtained the rendition list from gateway device;
S204: user selects the program that will watch in terminal;
S205: the programme information that terminal transmission will be watched program is to gateway device;
S206: gateway device received RF signal, according to programme information locking program place frequency;
S207: gateway device obtains the SI table relevant with selecting program and Entitlement Control Message ECM and resolves, and obtains the second secret data;
S208: gateway device is deciphered the first secret data and the second secret data, obtains the ciphering key W that the selected program of descrambling is used;
S209: gateway device utilizes the selected program of ciphering key W descrambling, obtains the program data after descrambling;
S210: gateway device utilizes terminal public key to encrypt the program data after descrambling;
S211: the program data after gateway device transmission is encrypted is to terminal;
S212: terminal receives ciphered program data, utilizes terminal secret key to be decrypted, decodes and plays the program data after deciphering.
Described terminal public key is when terminal and gateway device connect, and by terminal, sends to gateway device; The data of using described terminal public key to encrypt can be used the private key of described terminal to be decrypted.
As shown in Figure 5, described condition reception front end and gateway device carry out handshake communication flow process, and its step is:
1) condition reception front end sends handshake data to gateway device by IP network;
2) gateway device is resolved the verification msg that handshake data obtains key and the encrypted form of encrypted form;
3) key of gateway device enabling decryption of encrypted form and the verification msg of encrypted form, obtain the verification msg of decrypted form;
4) verification msg that gateway device transmission deciphering obtains is to condition reception front end;
5) condition reception front end is according to the legitimacy of the verification msg judgement gateway device of receiving;
6) whether the verification msg that judgement is received is consistent with the data of expectation, if consistent, gateway device is legal, otherwise gateway device is illegal.
As shown in Figure 6, terminal is obtained the flow process of the rendition list, and its step is:
A) in terminal judges self, whether there is the rendition list, if exist, execution step b); If do not exist, execution step c);
B) terminal reads the program information data of self and resolves, and exits step S3;
C) terminal is to the list of gateway device request program downloading;
D) gateway device judges in the memory of gateway device whether have the rendition list, if having, and execution step e); Otherwise execution step f);
E) gateway device sends the rendition list to terminal, exits step S3;
F) gateway device locking dominant frequency point obtains NIT table from radiofrequency signal;
G) gateway device is resolved NIT table, obtains the frequency point information in radiofrequency signal;
H) the gateway device frequency in locking radio frequency signal one by one;
I) gateway device obtains current locked frequency point PAT, PMT and SDT show and resolve, and obtain the programme information of current locked frequency point;
J) judge that whether all frequencies all carried out lock operation, if so, performed step k); If not, execution step h);
K) gateway device sends programme information to terminal, and the programme information that preservation is obtained is in the memory of gateway device.
Above-mentioned is preferred embodiment of the present invention, and on the basis of technical scheme of the present invention, the various modifications of making or distortion still belong to protection scope of the present invention.
Claims (13)
1. a digital television signal receiving method, is characterized in that, it comprises:
S1: terminal enters operating state;
S2: gateway device obtains Entitlement Management Message EMM and resolves and obtains the first secret data;
S3: terminal is obtained the rendition list from gateway device;
S4: user selects the program that will watch in terminal;
S5: the programme information that terminal transmission will be watched program is to gateway device;
S6: gateway device received RF signal, according to programme information locking program place frequency;
S7: gateway device obtains the SI table relevant with selecting program and Entitlement Control Message ECM and resolves, and obtains the second secret data;
S8: gateway device is deciphered the first secret data and the second secret data, obtains the ciphering key W that the selected program of descrambling is used;
S9: gateway device utilizes the selected program of ciphering key W descrambling, obtains the program data after descrambling;
S10: the program data after gateway device transmission descrambling is to terminal;
S11: terminal program receiving data, decoding broadcast program.
2. digital television signal receiving method as claimed in claim 1, is characterized in that, before described step S2, also comprises, condition reception front end and gateway device carry out handshake communication, confirms the legitimacy of gateway device.
3. digital television signal receiving method as claimed in claim 2, is characterized in that, the step of described handshake communication is:
1) condition reception front end sends handshake data to gateway device by IP network;
2) gateway device is resolved the verification msg that handshake data obtains key and the encrypted form of encrypted form;
3) key of gateway device enabling decryption of encrypted form and the verification msg of encrypted form, obtain the verification msg of decrypted form;
4) verification msg that gateway device transmission deciphering obtains is to condition reception front end;
5) condition reception front end is according to the legitimacy of the verification msg judgement gateway device of receiving.
4. digital television signal receiving method as claimed in claim 1, is characterized in that, described step S2 is specially, and the Entitlement Management Message EMM that gateway device is sent by IP network or Broadcasting Cable Network condition of acceptance receiving front-end also resolves.
5. digital television signal receiving method as claimed in claim 1, is characterized in that, described step S3 further comprises,
A) in terminal judges self, whether there is the rendition list, if exist, execution step b); If do not exist, execution step c);
B) terminal reads the program information data of self and resolves, and exits step S3;
C) terminal is to the list of gateway device request program downloading;
D) gateway device judges in the memory of gateway device whether have the rendition list, if having, and execution step e); Otherwise execution step f);
E) gateway device sends the rendition list to terminal, exits step S3;
F) gateway device locking dominant frequency point obtains NIT table from radiofrequency signal;
G) gateway device is resolved NIT table, obtains the frequency point information in radiofrequency signal;
H) the gateway device frequency in locking radio frequency signal one by one;
I) gateway device obtains current locked frequency point PAT, PMT and SDT show and resolve, and obtain the programme information of current locked frequency point;
J) judge that whether all frequencies all carried out lock operation, if so, performed step k); If not, execution step h);
K) gateway device sends programme information to terminal, and the programme information that preservation is obtained is in the memory of gateway device.
6. digital television signal receiving method as claimed in claim 1, is characterized in that, described step S10 is further: gateway device is used the public key encryption program data of terminal, and the program data after encrypting is sent to terminal;
Described step S12 is further: terminal receives the program data of encrypting, and uses the program data of the private key enabling decryption of encrypted of terminal, and the program data that deciphering is obtained is decoded and plays.
7. digital television signal receiving method as claimed in claim 6, is characterized in that, described terminal public key is when terminal and gateway device connect, and by terminal, sends to gateway device; The data of using described terminal public key to encrypt can be used the private key of described terminal to be decrypted.
8. digital television signal receiving method as claimed in claim 1, is characterized in that, gateway device is regularly carried out described step S2.
9. digital television signal receiving method as claimed in claim 1, is characterized in that, described SI table at least comprises a kind of in PAT, PMT, SDT, CAT table.
10. a digital television signal receiving system, is characterized in that, it comprises at least one gateway device, at least one terminal and at least one condition reception front end; Wherein,
Described gateway device at least comprises tuning demodulation module, demultiplexing module, deciphering module, descrambling module, processing unit and mixed-media network modules mixed-media, gateway device is connected by IP network is two-way with at least one terminal, and Network Management Equipment links with at least one condition reception front end simultaneously; Gateway device receiving digital television program data from the radiofrequency signal of Broadcasting Cable Network carries out descrambling, and the program data after descrambling is issued to terminal and decode and play;
Described terminal receives the program stream that gateway device is sent, decoding broadcast program;
Described condition reception front end is netted two-way connection with at least one gateway device by I P, and condition reception front end generates Entitlement Control Message ECM and delivers to Broadcasting Cable Network, generates Entitlement Management Message EMM and issues gateway device by Broadcasting Cable Network or IP network; Described condition reception front end also carries out handshake communication with gateway device, and the legitimacy of gateway device is verified.
11. digital television signal receiving systems as claimed in claim 10, is characterized in that, described gateway device also comprises key production module, for the key that generates the key of deciphering secret data and generate the key of deciphering handshake data encrypted form.
12. digital television signal receiving systems as claimed in claim 10, is characterized in that, described gateway device also comprises encrypting module, for encrypting the program data obtaining after descrambling.
13. digital television signal receiving systems as claimed in claim 10, is characterized in that, described terminal is at least a kind of in television set, computer, mobile phone and panel computer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050681.8A CN103596050A (en) | 2013-02-08 | 2013-02-08 | Digital television signal reception system and reception method thereof |
| PCT/CN2014/000087 WO2014121653A1 (en) | 2013-02-08 | 2014-01-23 | Digital television signal receiving system and receiving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050681.8A CN103596050A (en) | 2013-02-08 | 2013-02-08 | Digital television signal reception system and reception method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103596050A true CN103596050A (en) | 2014-02-19 |
Family
ID=50086005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310050681.8A Pending CN103596050A (en) | 2013-02-08 | 2013-02-08 | Digital television signal reception system and reception method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103596050A (en) |
| WO (1) | WO2014121653A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244080A (en) * | 2014-09-11 | 2014-12-24 | 深圳国微技术有限公司 | Digital television signal descramble device, system and terminal |
| CN104506925A (en) * | 2015-01-08 | 2015-04-08 | 大唐微电子技术有限公司 | Multimedia gateway and method |
| CN105657501A (en) * | 2016-01-28 | 2016-06-08 | 深圳国微技术有限公司 | Digital television direct broadcasting system and digital television direct broadcasting method |
| WO2016101687A1 (en) * | 2014-12-23 | 2016-06-30 | 深圳Tcl新技术有限公司 | Digital television terminal condition receiving method, terminal and system |
| CN106973313A (en) * | 2017-02-24 | 2017-07-21 | 深圳国微技术有限公司 | A kind of digital television program control method for playing back and digital TV terminal |
| CN111385605A (en) * | 2018-12-29 | 2020-07-07 | 深圳Tcl数字技术有限公司 | Control method, system and related equipment for digital television signal encryption transmission |
| CN113179425A (en) * | 2020-11-16 | 2021-07-27 | 北京路安世纪文化发展有限公司 | High-speed digital television signal transmission method |
| CN114449349A (en) * | 2020-10-30 | 2022-05-06 | 深圳Tcl新技术有限公司 | Program recording method, device, equipment and computer readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184200A (en) * | 2007-12-07 | 2008-05-21 | 四川长虹电器股份有限公司 | Method and system for subscribing digital pay television channel |
| US20100115547A1 (en) * | 2008-10-23 | 2010-05-06 | Samsung Electronics Co., Ltd. | System, apparatus, and method for conditional broadcast reception without cablecard |
| CN102769799A (en) * | 2011-05-03 | 2012-11-07 | 朱佩江 | Method and system for realizing digital television business distribution service in IP (internet protocol) network |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784053B (en) * | 2009-01-16 | 2013-05-08 | 中兴通讯股份有限公司 | Wireless home gateway and television access realizing method thereof |
| CN101510965B (en) * | 2009-03-11 | 2011-05-11 | 深圳市融创天下科技发展有限公司 | Classified access system and method for multiple mobile terminals of digital television set-top box |
-
2013
- 2013-02-08 CN CN201310050681.8A patent/CN103596050A/en active Pending
-
2014
- 2014-01-23 WO PCT/CN2014/000087 patent/WO2014121653A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101184200A (en) * | 2007-12-07 | 2008-05-21 | 四川长虹电器股份有限公司 | Method and system for subscribing digital pay television channel |
| US20100115547A1 (en) * | 2008-10-23 | 2010-05-06 | Samsung Electronics Co., Ltd. | System, apparatus, and method for conditional broadcast reception without cablecard |
| CN102769799A (en) * | 2011-05-03 | 2012-11-07 | 朱佩江 | Method and system for realizing digital television business distribution service in IP (internet protocol) network |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244080A (en) * | 2014-09-11 | 2014-12-24 | 深圳国微技术有限公司 | Digital television signal descramble device, system and terminal |
| WO2016101687A1 (en) * | 2014-12-23 | 2016-06-30 | 深圳Tcl新技术有限公司 | Digital television terminal condition receiving method, terminal and system |
| CN104506925A (en) * | 2015-01-08 | 2015-04-08 | 大唐微电子技术有限公司 | Multimedia gateway and method |
| CN105657501A (en) * | 2016-01-28 | 2016-06-08 | 深圳国微技术有限公司 | Digital television direct broadcasting system and digital television direct broadcasting method |
| CN105657501B (en) * | 2016-01-28 | 2019-05-28 | 深圳国微技术有限公司 | A kind of digital TV direct system and method |
| CN106973313A (en) * | 2017-02-24 | 2017-07-21 | 深圳国微技术有限公司 | A kind of digital television program control method for playing back and digital TV terminal |
| CN111385605A (en) * | 2018-12-29 | 2020-07-07 | 深圳Tcl数字技术有限公司 | Control method, system and related equipment for digital television signal encryption transmission |
| CN114449349A (en) * | 2020-10-30 | 2022-05-06 | 深圳Tcl新技术有限公司 | Program recording method, device, equipment and computer readable storage medium |
| CN114449349B (en) * | 2020-10-30 | 2023-07-25 | 深圳Tcl新技术有限公司 | Program recording method, device, equipment and computer readable storage medium |
| CN113179425A (en) * | 2020-11-16 | 2021-07-27 | 北京路安世纪文化发展有限公司 | High-speed digital television signal transmission method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014121653A1 (en) | 2014-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103596050A (en) | Digital television signal reception system and reception method thereof | |
| KR101354411B1 (en) | Method for accessing services by a user unit | |
| KR100415109B1 (en) | Method and apparatus for serving commercial broadcasting service in cellular wireless telecommunication system | |
| JP4870078B2 (en) | Low hierarchy key management system and method | |
| US7072865B2 (en) | Broadcast receiving method and apparatus and information distributing method and apparatus | |
| TWI415463B (en) | Methods and apparatus for securing communications between a decryption device and a television receiver | |
| US10091537B2 (en) | Method and multimedia unit for processing a digital broadcast transport stream | |
| US20110099591A1 (en) | Secure wireless pairing of digital tv short-range transmitter and receiver | |
| CN102196316B (en) | A method for controlling access to a plurality of channels by a receiver/decoder | |
| EP1853000A1 (en) | Subscriber authorization method and system, and authorization controlling system and terminal device thereof | |
| CN103581751B (en) | A kind of digital television signal receives system and method for reseptance | |
| US20120114121A1 (en) | Method of transmitting and receiving content | |
| EP1690367A2 (en) | System and method for using drm to control conditional access to broadband digital content | |
| CN101335579A (en) | Method implementing conditional reception and conditional receiving apparatus | |
| CN103024476A (en) | Digital television gateway device and content safeguard method | |
| CN105245944A (en) | DVB (Digital Video Broadcasting)-based multi-terminal program playing method and system, set top box and mobile terminal | |
| CN104581369A (en) | Multi-channel high-definition live program forwarding method and system based on broadcast television network home gateway | |
| CN101841669B (en) | Mobile multimedia broadcast receiving chip, device, and method, and baseband processing chip | |
| KR20100069373A (en) | Conditional access system and method exchanging randon value | |
| CN103248954A (en) | Receiving device of digital television | |
| KR20210007571A (en) | The implementation method of the decryption system using the CSA decipher module | |
| CN103634624A (en) | Digital television live broadcasting method and system based on IP (Internet protocol) network | |
| CN111385605A (en) | Control method, system and related equipment for digital television signal encryption transmission | |
| CN114727155B (en) | Multimedia data service processing device, system and method based on I-PON | |
| JP2007189631A (en) | Electronics, and content distribution system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140219 |