CN104853242A - Descrambling method and apparatus of digital television set - Google Patents
Descrambling method and apparatus of digital television set Download PDFInfo
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- CN104853242A CN104853242A CN201510242474.1A CN201510242474A CN104853242A CN 104853242 A CN104853242 A CN 104853242A CN 201510242474 A CN201510242474 A CN 201510242474A CN 104853242 A CN104853242 A CN 104853242A
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- digital television
- license file
- package
- command information
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- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
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- 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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
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- 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
- H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
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- 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
- H04N21/4627—Rights management associated to the content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention, which relates to the digital television set field, provides a descrambling method and apparatus of a digital television set. With the method and apparatus, descrambling of a scrambling television signal can be realized without any hardware support in the prior art, so that the user experience is improved. The descrambling method comprises the following steps that: a digital television set obtains a permission file containing an equipment identifier, a program set identifier, and a time-limiting identifier of the program set; whether the equipment identifier of the permission file is identical with an equipment identifier of the digital television set is determined; if so, whether the time limit corresponding to the time-limiting identifier of the program set is valid is determined according to the time-limiting identifier of the program set; and if so, a program transport stream corresponding to the identifier of the program set is descrambled based on the identifier of the program set. The descrambling method and apparatus are applied to the digital television set.
Description
Technical field
The present invention relates to digital TV field, particularly relate to a kind of de-scrambling method and device of Digital Television.
Background technology
Digital television system is the product of digital information technology, refer to the television genre all using digital signal in all links launched, transmit and receive, adopt digital signal to carry out Signal transmissions, more program and better program quality effect can be brought for user.In order to ensure that Digital Television can provide personalized information service for user, existing digital television system adopts Conditional Access (Conditional Access, be called for short CA), namely the TV programme signal sent is adopted in transmitting terminal scrambling and the mode at receiving terminal descrambling, like this, a part of qualified user can be allowed to receive specific TV programme, in other words, only have the user through proper authorization just can watch some TV programme.
At present, existing Digital Television adopts and looks close the descrambling that card (Conditional Access Module is called for short CAM card) and smart card (Smart Card) realize the TV signal to scrambling.Concrete, first user needs to handle smart card to the CHINA RFTCOM Co Ltd general bureau of respective ownership place, then, smart card is inserted in CAM by user, then CAM card is inserted into the pcmcia interface (also known as CI interface) of Digital Television, like this, when receiving the TV signal of scrambling, complete decrypting process by smart card, realize the descrambling to TV signal by CAM card, thus user just can watch the TV programme of descrambling.But prior art will realize the descrambling of the TV signal to scrambling, need by the cooperation of CAM card and smart card, namely hardware supports is needed to realize descrambling, and, because smart card is well used, easily make the magnetic strip information demagnetization in smart card, and then reduce Consumer's Experience.
Summary of the invention
Embodiments of the invention provide a kind of de-scrambling method and device of Digital Television, without the need to by hardware supports of the prior art, can realize the descrambling of the TV signal to scrambling, improve Consumer's Experience.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, embodiments provide a kind of de-scrambling method of Digital Television, comprising:
Digital Television obtains license file, includes device identification, the mark of package and the time limit mark of described package in described license file;
Determine that whether device identification described in described license file is identical with the device identification of described Digital Television;
If identical, then identify according to the time limit of described package, whether effectively determine to identify the corresponding time limit with the time limit of described package;
If effectively, then according to the mark of described package, carry out descrambling to the program transport streams corresponding with the mark of described package.
On the one hand, embodiments provide a kind of de-scrambling method of Digital Television, comprising:
Service equipment receives first command information of user, comprises the time limit mark of the device identification of Digital Television, the mark of package and described package in described first command information;
According to described first command information, generate license file, in described license file, comprise described first command information;
Described license file is sent to described Digital Television or External memory equipment.
On the one hand, embodiments provide a kind of descrambler of Digital Television, comprising:
Acquiring unit, for obtaining license file, includes device identification, the mark of package and the time limit mark of described package in described license file;
Whether determining unit is identical with the device identification of described Digital Television for determining the device identification in the license file that described acquiring unit obtains;
Described determining unit, if also identical with the device identification of described Digital Television for determining the device identification in described license file, then identify according to the time limit of described package, whether effectively determines to identify the corresponding time limit with the time limit of described package;
Descrambling unit, if for described determining unit determination package time limit mark corresponding to time limit effective, then according to the mark of described package, descrambling is carried out to the program transport streams corresponding with the mark of described package.
On the one hand, embodiments provide a kind of descrambler of Digital Television, comprising:
Receiving element, for receiving first command information of user, comprises the time limit mark of the device identification of Digital Television, the mark of package and described package in described first command information;
Generation unit, for the first command information received according to described receiving element, generates license file, comprises described first command information in described license file;
Transmitting element, the license file for being generated by described generation unit sends to Digital Television or External memory equipment.
The de-scrambling method of a kind of Digital Television that the embodiment of the present invention provides and device, Digital Television obtains license file, determine that whether the device identification in license file is identical with the device identification of Digital Television, if identical, then identify according to the time limit of package in license file, determine that whether the time limit of this package is effective, if effectively, then according to the mark of package in license file, carry out descrambling to identifying corresponding program transport streams with this package.Pass through such scheme, Digital Television realizes carrying out descrambling to the transport stream corresponding to package by license file, namely utilize license file to replace CAM card and smart card, namely by the descrambling of software simulating to the TV signal of scrambling, and user is also without the need to going broadcasting and TV to handle smart card, improve Consumer's Experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of the de-scrambling method of a kind of Digital Television that Fig. 1 provides for the embodiment of the present invention one;
The schematic diagram of the de-scrambling method of the another kind of Digital Television that Fig. 2 provides for the embodiment of the present invention one;
The schematic diagram of the de-scrambling method of the another kind of Digital Television that Fig. 3 provides for the embodiment of the present invention one;
The schematic diagram of the de-scrambling method of the another kind of Digital Television that Fig. 4 provides for the embodiment of the present invention one;
The schematic diagram of the de-scrambling method of the another kind of Digital Television that Fig. 5 provides for the embodiment of the present invention one;
The schematic diagram of the de-scrambling method of a kind of Digital Television that Fig. 6 provides for the embodiment of the present invention two;
The schematic diagram of the de-scrambling method of the another kind of Digital Television that Fig. 7 provides for the embodiment of the present invention two;
The schematic flow sheet of the de-scrambling method of a kind of Digital Television that Fig. 8 provides for the embodiment of the present invention three;
The schematic diagram of the descrambler of a kind of Digital Television that Fig. 9 provides for the embodiment of the present invention four;
The schematic diagram of the descrambler of the another kind of Digital Television that Figure 10 provides for the embodiment of the present invention four;
The schematic diagram of the descrambler of a kind of Digital Television that Figure 11 provides for the embodiment of the present invention five.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
Embodiments provide a kind of de-scrambling method of Digital Television, carry out by license file the descrambling that alternative CAM card and smart card realize the TV programme signal bought, concrete, as shown in Figure 1, the method comprises:
Step 101, Digital Television obtain license file.
Wherein, device identification, the mark of package and the time limit mark of package is included in this license file.It should be noted that, Digital Television cannot carry out any change to license file, and namely Digital Television is not to the authority that license file is changed.
For the device identification in license file, must can unique identification equipment, such as, Electronic Serial Number (Electronic Serial Number can be adopted, be called for short ESN) identify, ESN is a length is the parameter of 32bits, can unique identification equipment.
Step 102, determine that whether the device identification in license file is identical with the device identification of Digital Television.
It should be noted that, the object performing step 102 is in order to ensure only having the Digital Television identical with the device identification in license file just can carry out subsequent operation to license file, ensureing that this license file and Digital Television match.If the device identification in license file is not identical with the device identification of Digital Television, then illustrate that this license file does not mate with Digital Television, Digital Television cannot carry out subsequent operation to license file.
If step 103 is identical, then identify according to the time limit of package, whether effectively determine to identify the corresponding time limit with the time limit of this package.
In a step 102, when the device identification of Digital Television is identical with the device identification in license file, Digital Television judges the time limit corresponding to the time limit mark of package in license file, to determine that whether this time limit is effective.Only in this time limit effective situation, perform step 104.Example, for the time limit of package, the method of countdown can be adopted to judge, if the viewing time limit that user buys is 1 year (365 days), then judge whether the time limit of this package equals 0, if equal 0, then mean that the time limit of this package is invalid, if the time limit of package is greater than 0, then mean that the time limit of this package is effective.
If step 104 is effective, then according to the mark of package, descrambling is carried out to the program transport streams corresponding with the mark of package.
According to step 102 and 103, this license file for being applied in Digital Television, and in license file the time limit of package effective, therefore, Digital Television carries out descrambling to program transport streams corresponding with the mark of package in license file.Like this, user just can watch the TV programme of descrambling.
Further, in step 101, the license file that Digital Television obtains can be that service equipment transmission obtains, and also can acquire from External memory equipment.Below, be specifically described for two kinds of different obtain manners.
First kind of way: the license file obtained when Digital Television is that service equipment transmission obtains, and so, as shown in Figure 2, before step 101, the method also comprises:
The command information of step 105, reception user.
Wherein, the time limit mark of the device identification of Digital Television, the mark of package and package is comprised in command information.This command information can be that the disposable reception of Digital Television obtains, and also can be obtained by twice or three times.
Example, when Digital Television is in networking state, user can sign in the official website of broadcasting and TV by Digital Television, by the instruction in the user interface (User Interface is called for short UI) of broadcasting and TV official website, the device identification of input Digital Television; Meanwhile, comprise TV programme that broadcasting and TV can transmit in the user interface due to broadcasting and TV official website and sorted program set is carried out to these TV programme, as: physical culture, film, TV play etc.User can be that user selects the program set of TV programme or the classification that will watch according to the wish of oneself, thus the mark of the package that will watch that Digital TV Receiving is inputted to user by user interface, in addition, user is by the user interface of broadcasting and TV official website, select the time limit of the package that will watch, or input the time limit of package that will watch, thus the mark of the package that will watch that Digital TV Receiving inputs to user.
Step 106, command information is sent to service equipment, to make service equipment generate license file according to command information, and license file is sent to Digital Television.
Wherein, service equipment is the server of serving broadcasting and TV, and the command signal that the server of broadcasting and TV sends according to the Digital Television received generates license file, and this license file is sent to Digital Television.
So, step 101 is specially: the license file that Digital TV Receiving service equipment sends.Digital Television, after the license file receiving service equipment transmission, continues to perform step 102-104.
Further, for the device identification how getting Digital Television in step 105, can be obtained by step below, as shown in Figure 3, specifically comprise:
The solicited message of step 107, reception user.
Wherein, this solicited message is used to indicate the device identification of Digital Television display self.
Step 108, according to solicited message, display Digital Television device identification.
According to step 107 and step 108, user can get the device identification of Digital Television.User is after the device identification getting Digital Television, when Digital Television is in networking state, by the page of broadcasting and TV official website, the device identification of input Digital Television, accordingly, the device identification of the Digital Television of Digital TV Receiving user input, and then, continue to perform subsequent step according to foregoing description.
The second way: the license file obtained when Digital Television acquires from External memory equipment.So, as shown in Figure 4, before step 101, the method also comprises:
Whether step 109, detection are connected with External memory equipment.
Wherein, External memory equipment can be the equipment that hard disk, USB flash disk etc. have memory function.According to the function of External memory equipment, Digital Television and External memory equipment can carry out the mode of wired connection by data wire, also can adopt the mode of wireless connections.
If step 110 detects to be connected with External memory equipment, then to detect in External memory equipment whether comprise license file.
If comprise license file in External memory equipment, then step 101 is specially: Digital Television obtains license file from External memory equipment.And then, continue to perform step 102-104.
Further, when user wants change Digital Television or change package or change the time limit of package or change any one combination above-mentioned, as shown in Figure 5, after step 104, the method also comprises:
The inefficacy instruction of step 111, reception user.
Example, this inefficacy instruction can by clicking, the inefficacy menu option of user interface obtains for user.
Step 112, according to this inefficacy instruction, generate failure indication.
Wherein, this failure indication comprises the mark of failed license file.This failure indication can be inefficacy code.
And then, when user want time limit of changing package or changing package or change simultaneously package and package time in limited time, obtain new license file by this failure indication; When user wants to change Digital Television, new license file must be obtained by this failure indication and the equipment after changing.Like this, user can change according to demand, improves Consumer's Experience.
The de-scrambling method of a kind of Digital Television that the embodiment of the present invention provides, Digital Television obtains license file, determine that whether the device identification in license file is identical with the device identification of Digital Television, if identical, then identify according to the time limit of package in license file, determine that whether the time limit of this package is effective, if effectively, then according to the mark of package in license file, carry out descrambling to identifying corresponding program transport streams with this package.Pass through such scheme, Digital Television realizes carrying out descrambling to the transport stream corresponding to package by license file, namely utilize license file to replace CAM card and smart card, namely by the descrambling of software simulating to the TV signal of scrambling, and user is also without the need to going broadcasting and TV to handle smart card, improve Consumer's Experience.
Embodiment two
Embodiments provide a kind of de-scrambling method of Digital Television, the license file of the method needed for service equipment generation Digital Television.Concrete, as shown in Figure 6, the method comprises:
Step 401, service equipment receive first command information of user.
Wherein, the time limit mark of the device identification of Digital Television, the mark of package and package is comprised in the first command information.Service equipment is the server of serving broadcasting and TV, and service equipment receives the first command information of user's input by user interface.
How user is got to the facility information of Digital Television, can be obtained by the method for step 107-108 in embodiment one, not repeat them here.User is after getting the facility information of Digital Television, the official website of broadcasting and TV can be logged in by any mobile terminal (as notebook computer, panel computer etc.), by user interface, the facility information of Digital Television is inputted, accordingly, service equipment receives the device identification of the Digital Television of user's input; In addition, user selects to need the package of viewing and the time limit of this package by user interface, and therefore, service equipment receives the mark comprising package of user's input and the time limit mark of package.
Step 402, according to the first command information, generate license file.
Wherein, in license file, comprise the first command information, namely in license file, comprise the time limit mark of the device identification of Digital Television, the mark of package and package.
Step 403, license file is sent to Digital Television or External memory equipment.
Wherein, license file can be sent to Digital Television by wired or wireless mode by service equipment, or license file also can be sent in External memory equipment by service equipment, as hard disk, USB flash disk etc., Digital Television gets this license file by External memory equipment.
Further, as shown in Figure 7, after step 403, the method also comprises:
Second command information of step 404, reception user.
Wherein, the device identification of failure indication, the 3rd equipment is comprised in the second command information.Failure indication comprises the mark of failed license file; Due to failed license file
Step 405, according to the second command identification, generate new license file.
Wherein, the second command information is comprised in new license file.
Embodiments provide a kind of de-scrambling method of Digital Television, service equipment receives first command information of user, comprises the time limit mark of the device identification of Digital Television, the mark of package and package in the first command information; According to described first command information, generate license file, in license file, comprise the first command information; License file is sent to Digital Television or External memory equipment, like this, license file is sent to Digital Television by directly or indirectly mode by service equipment, like this, realize carrying out descrambling to the transport stream corresponding to package by license file to make Digital Television, namely utilize license file to replace CAM card and smart card, namely the descrambling to TV programme is realized by software, like this, not only cost-saving, and user is also without the need to going broadcasting and TV to handle smart card, improve Consumer's Experience.
Embodiment three
In conjunction with the embodiments one and the de-scrambling method of Digital Television described by embodiment two, the embodiment of the present invention provides a kind of concrete implementation.Concrete, comprising:
(1) Electronic Serial Number is obtained
In order to ensure that Digital Television can provide personalized information service to user, and set up the charge channel of safety, with the physical address of Digital Television (Media AccessControl in the embodiment of the present invention, be called for short MAC) as ESN, remove application license (license) file.
Concrete, user is by user interface (User Interface, abbreviation UI) select the option obtaining Digital Television MAC Address, with transmission request information to the main controller of Digital Television, after the main controller of Digital Television receives this solicited message, obtain the MAC Address of this Digital Television, and this MAC Address is returned to user interface, user interface shows the MAC Address returned.
(2) license file is applied for
After getting the ESN of Digital Television, user can by any mobile terminal (as notebook computer, panel computer etc.), by user interface from the various set meals that broadcasting and TV official website provides, package needed for selecting according to the demand of self and the time limit of package, and input the MAC Address of the Digital Television got, the server of serving broadcasting and TV after payment is according to the time limit of user-selected package and package, the MAC Address of Digital Television generates corresponding license file, this license file comprises the MAC Address of the Digital Television of input, the mark of the package that user selects and the time limit mark of this package.And then this license file is placed in USB flash disk by user.
(3) license file is resolved
As shown in Figure 8, when user opens Digital Television, after Digital Television powers on, whether the main controller of Digital Television detects has USB flash disk to insert, if do not have, then resolves failure; If have, then detect in this USB flash disk whether have license file, if do not have, then resolve failure; If have, then from USB flash disk, obtain this license file; Afterwards, whether the MAC Address of Digital Television determination the machine is identical with the MAC Address of Digital Television in license file, if different, then resolves failure; If identical, then determine that whether the time limit of package in license file is effective, if invalid, then resolve failure; If effectively, then carry out descrambling to the program data stream in license file corresponding to package.
Like this, license file only could be resolved in the Digital Television matched with the MAC Address that input during application, and by the time parameter of the package in parsing license file and package, the program in set meal could by normal descrambling.Certainly, this package can be time limit of package in license file by the time limit of normal descrambling.When being limited to the phase at that time, originally can the program of normal descrambling can not by normal descrambling; Or, the trial period of one month can be carried out, the trial period terminate rear originally can the program of normal descrambling can not by normal descrambling.
(4) license file lost efficacy
Because each license file can only be applied in the Digital Television matched with the MAC Address that inputs during application, therefore, when user want change TV and in current license file package time limit and not yet due time, then user needs the license file in old TV to lose efficacy, concrete, user can by selecting the menu option of inefficacy license file in user interface, old TV is according to the inefficacy option of user, generate inefficacy code, and turning back to user interface, user interface shows this inefficacy code; And then user is according to the MAC Address of this inefficacy code and new TV, and again apply for new license file, like this, new license file just can use in new TV.
Embodiments provide a kind of de-scrambling method of Digital Television, Digital Television gets by USB flash disk the license file that mobile terminal generates, and then, Digital Television realizes carrying out descrambling to the transport stream corresponding to package by license file, namely utilizes license file to replace CAM card and smart card, realizes the control to TV programme, and user is also without the need to going broadcasting and TV to handle smart card, meanwhile, user can change according to demand, improves Consumer's Experience.
Embodiment four
Embodiments provide a kind of descrambler of Digital Television, this device is corresponding with the method step in embodiment one.As shown in Figure 9, this device 90 comprises:
Acquiring unit 901, for obtaining license file, includes device identification, the mark of package and the time limit mark of package in license file;
Whether determining unit 902 is identical with the device identification of Digital Television for determining the device identification in the license file that acquiring unit 901 obtains;
Determining unit 902, if also for determining that the device identification in license file is identical with the device identification of Digital Television, then identifying according to the time limit of package, whether effectively determining to identify the corresponding time limit with the time limit of package;
Descrambling unit 903, if determine for determining unit 902, the time limit corresponding to time limit mark of package is effective, then according to the mark of package, carry out descrambling to the program transport streams corresponding with the mark of package.
Optionally, acquiring unit 901 is specifically for receiving the license file of service equipment transmission.
Optionally, as shown in Figure 10, this device 90 also comprises: receiving element 904, transmitting element 905;
Receiving element 904, for receive license file that service equipment sends at acquiring unit 901 before, receives the command information of user, comprises the time limit mark of the device identification of Digital Television, the mark of package and package in command information;
Transmitting element 905, sends to service equipment for the command information received by receiving element 904, generates license file to make service equipment according to command information.
Optionally, as shown in Figure 10, this device 90 also comprises: display unit 906;
Receiving element 904, also for before the command information receiving user, receive the solicited message of user, solicited message is used to indicate the device identification of display Digital Television;
Display unit 906, for the solicited message received according to receiving element 904, the device identification of display Digital Television.
Optionally, as shown in Figure 10, this device 90 also comprises: detecting unit 907;
Whether detecting unit 907, before obtaining license file at acquiring unit 901, detect and be connected with External memory equipment;
Detecting unit 907, if to be also connected with External memory equipment for detecting, then detects in External memory equipment whether include license file;
Acquiring unit 901, includes license file if detect in External memory equipment specifically for detecting unit 907, then obtain the license file in External memory equipment.
Optionally, as shown in Figure 10, this device 90 also comprises: generation unit 908;
Receiving element 904, also for receiving the inefficacy instruction of user;
Generation unit 908, for the inefficacy instruction received according to receiving element 904, generates failure indication.
The descrambler of a kind of Digital Television that the embodiment of the present invention provides, by obtaining license file, determine that whether the device identification in license file is identical with the device identification of Digital Television, if identical, then identify according to the time limit of package in license file, determine that whether the time limit of this package is effective, if effectively, then according to the mark of package in license file, carry out descrambling to identifying corresponding program transport streams with this package.Pass through such scheme, this device realizes carrying out descrambling to the transport stream corresponding to package by license file, namely utilize license file to replace CAM card and smart card, namely by the descrambling of software simulating to the TV signal of scrambling, and user is also without the need to going broadcasting and TV to handle smart card, improve Consumer's Experience.
Embodiment five
Embodiments provide a kind of descrambler of Digital Television, this device is corresponding with the method step in embodiment two.As shown in figure 11, this device 110 comprises:
Receiving element 1101, for receiving first command information of user, comprises the time limit mark of the device identification of Digital Television, the mark of package and package in the first command information;
Generation unit 1102, for the first command information received according to receiving element 1101, generates license file, comprises the first command information in license file;
Transmitting element 1103, the license file for being generated by generation unit 1102 sends to Digital Television or External memory equipment.
Optionally, receiving element 1101, also for receiving second command information of user, comprises the device identification of failure indication, the 3rd equipment in the second command information;
Second command information of generation unit 1102 also for receiving according to receiving element 1101, generates new license file, comprises the second command information in new license file.
Embodiments provide a kind of descrambler of Digital Television, according to first command information of the user received, generate license file, license file is sent to Digital Television or External memory equipment, like this, license file is sent to Digital Television by directly or indirectly mode by this device, like this, realize carrying out descrambling to the transport stream corresponding to package by license file to make Digital Television, namely utilize license file to replace CAM card and smart card, namely the descrambling to TV programme is realized by software, like this, not only cost-saving, and user is also without the need to going broadcasting and TV to handle smart card, improve Consumer's Experience.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a de-scrambling method for Digital Television, is characterized in that, comprising:
Digital Television obtains license file, includes device identification, the mark of package and the time limit mark of described package in described license file;
Determine that whether device identification described in described license file is identical with the device identification of described Digital Television;
If identical, then identify according to the time limit of described package, whether effectively determine to identify the corresponding time limit with the time limit of described package;
If effectively, then according to the mark of described package, carry out descrambling to the program transport streams corresponding with the mark of described package.
2. method according to claim 1, is characterized in that, described Digital Television obtains license file and comprises: the described license file that described Digital TV Receiving service equipment sends.
3. method according to claim 1 and 2, is characterized in that, before the described license file that described Digital TV Receiving service equipment sends, described method also comprises:
Receive the command information of user, in described command information, comprise the device identification of described Digital Television, the mark of described package and the time limit mark of described package;
Described command information is sent to described service equipment, generates described license file to make described service equipment according to described command information.
4. method according to claim 3, is characterized in that, before the command information of described reception user, described method also comprises:
Receive the solicited message of described user, described request information is used to indicate the device identification showing described Digital Television;
According to described request information, show the device identification of described Digital Television.
5. method according to claim 1, is characterized in that, before described Digital Television obtains license file, described method also comprises:
Detect and whether be connected with External memory equipment;
To be connected with described External memory equipment if detect, then to detect in described External memory equipment whether include described license file;
Described Digital Television obtains license file and comprises: include described license file if detect in described External memory equipment, then obtain the described license file in described External memory equipment.
6. the method according to any one of claim 1-5, is characterized in that, described method also comprises:
Receive the inefficacy instruction of described user;
According to described inefficacy instruction, generate failure indication.
7. a de-scrambling method for Digital Television, is characterized in that, comprising:
Service equipment receives first command information of user, comprises the time limit mark of the device identification of Digital Television, the mark of package and described package in described first command information;
According to described first command information, generate license file, in described license file, comprise described first command information;
Described license file is sent to described Digital Television or External memory equipment.
8. method according to claim 7, is characterized in that, described method also comprises:
Receive second command information of described user, in described second command information, comprise the device identification of failure indication, the 3rd equipment;
According to described second command information, generate new license file, in described new license file, comprise described second command information.
9. a descrambler for Digital Television, is characterized in that, comprising:
Acquiring unit, for obtaining license file, includes device identification, the mark of package and the time limit mark of described package in described license file;
Whether determining unit is identical with the device identification of described Digital Television for determining the device identification in the license file that described acquiring unit obtains;
Described determining unit, if also identical with the device identification of described Digital Television for determining the device identification in described license file, then identify according to the time limit of described package, whether effectively determines to identify the corresponding time limit with the time limit of described package;
Descrambling unit, if for described determining unit determination package time limit mark corresponding to time limit effective, then according to the mark of described package, descrambling is carried out to the program transport streams corresponding with the mark of described package.
10. a descrambler for Digital Television, is characterized in that, comprising:
Receiving element, for receiving first command information of user, comprises the time limit mark of the device identification of Digital Television, the mark of package and described package in described first command information;
Generation unit, for the first command information received according to described receiving element, generates license file, comprises described first command information in described license file;
Transmitting element, the license file for being generated by described generation unit sends to described Digital Television or External memory equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242474.1A CN104853242A (en) | 2015-05-13 | 2015-05-13 | Descrambling method and apparatus of digital television set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242474.1A CN104853242A (en) | 2015-05-13 | 2015-05-13 | Descrambling method and apparatus of digital television set |
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| CN104853242A true CN104853242A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510242474.1A Pending CN104853242A (en) | 2015-05-13 | 2015-05-13 | Descrambling method and apparatus of digital television set |
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