CN103618914B - Matrix fingerprint generating method, device and system - Google Patents
Matrix fingerprint generating method, device and system Download PDFInfo
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- CN103618914B CN103618914B CN201310689514.8A CN201310689514A CN103618914B CN 103618914 B CN103618914 B CN 103618914B CN 201310689514 A CN201310689514 A CN 201310689514A CN 103618914 B CN103618914 B CN 103618914B
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Abstract
The invention discloses a matrix fingerprint generating method, a matrix fingerprint generating device and a matrix fingerprint generating system, wherein the matrix fingerprint generating method comprises the following steps: front-end equipment sets fingerprint display types used for terminal equipment display, selects finger distribution positions corresponding to the fingerprint display types in a fingerprint matrix, generates matrix fingerprint information according to the fingerprint distribution positions and sends the fingerprint display types and the matrix fingerprint information to terminal equipment. According to the invention, the front-end equipment sets the fingerprint display types and the fingerprint distribution positions, and the terminal equipment is required to display the matrix fingerprints according to the fingerprint display types and the fingerprint distribution positions set by the front-end equipment, so that not only is flexibility of displaying fingerprints increased, but also fingerprints displayed in the matrix distribution mode are not easily wiped, and therefore, piracy tracing ability is improved.
Description
Technical field
The present invention relates to digital technology, more particularly to a kind of matrix fingerprint generation method, equipment and system.
Background technology
With the continuous progressive and extensive use of digital technology, developing rapidly for DTV media industry is promoted, profit
TV programme are produced with digital technology, stored, transmitted and is played and quite popularized, and, the number of TV programme
Word significantly reduces the goods and materials of whole industry, human cost, and brings and more digitize distinctive effect.But,
The safety problem of digital television system is always to perplex a great problem of digital television program.
Although Digital TV Receiving technology is very perfect, and is widely used in the digital television system in the whole world,
The system is only protected to the transmitting procedure of TV programme, departing from protection once the decrypted output of TV programme.In order to
Further protection is provided to the TV programme after decryption, video finger print technology is arisen at the historic moment, and as currently associated industry
One of focus.
Audio frequency and video are issued different terminal devices by the headend equipment that video finger print technology is referred in digital television system
User, oneself different finger print information is possessed in the different user of terminal device, such as, and intelligent card numbers or Set Top Box number,
Terminal device puts into video these finger print informations, then plays to user.Even if occurring pirate, it is also possible to according to video
Included in finger print information finally determine piracy source, so as to realize the purpose of tracing pirate.Wherein, front end (Head
End) equipment is to be used to process the various wireless signals received by antenna of needs transmission in cable television system and manage section by oneself
The equipment of mesh signal, typically by operator's control.
In the prior art, the video finger print technology that cable television is used is to directly display finger print information, such as, and intelligent card numbers
Or Set Top Box number, so can be intuitive to see very much the content of finger print information.
But, display location is concentrated very much during display finger print information in above-mentioned video finger print technology so that the finger print information
It is easy to be wiped free of, security is not high.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is to propose a kind of matrix fingerprint generation method, equipment and system, solution
Display location is concentrated very much when certainly showing finger print information in the prior art so that the finger print information is easy to the problem being wiped free of.
In a first aspect, the embodiment of the invention provides a kind of matrix fingerprint generation method, methods described includes：
Headend equipment is provided for the fingerprint display type that terminal device shows；
Headend equipment chooses the fingerprint distributing position corresponding with the fingerprint display type in fingerprint matrices, and according to
The fingerprint distributing position generator matrix finger print information；
Headend equipment sends to terminal device the fingerprint display type and matrix fingerprint information.
Second aspect, the embodiment of the invention provides a kind of matrix fingerprint generation method, and methods described includes：
Matrix fingerprint information and fingerprint display type that terminal device receiving front-end equipment sends；
Terminal device calculates corresponding fingerprint display location and obtains and the fingerprint according to the matrix fingerprint information
The corresponding Terminal fingerprints information of display type；
Terminal device shows the Terminal fingerprints information in the fingerprint display location.
The third aspect, the embodiment of the invention provides a kind of headend equipment, and the headend equipment includes：
Setup module, for being provided for the fingerprint display type that terminal device shows；
Fingerprint generation module, position is distributed for choosing the fingerprint corresponding with the fingerprint display type in fingerprint matrices
Put, and according to the fingerprint distributing position generator matrix finger print information；
Sending module, for the fingerprint display type and matrix fingerprint information to be sent to terminal device.
Fourth aspect, the embodiment of the invention provides a kind of terminal device, and the terminal device includes：
Receiver module, the matrix fingerprint information sent for receiving front-end equipment and fingerprint display type；
Fingerprint parsing module, for calculating corresponding fingerprint display location according to the matrix fingerprint information and obtaining
The Terminal fingerprints information corresponding with the fingerprint display type；
Display module, for showing the Terminal fingerprints information in the fingerprint display location.
5th aspect, the embodiment of the invention provides a kind of matrix fingerprint generation system, and the system includes：It is above-mentioned all
Headend equipment, terminal device in embodiment and the distribution network for being communicated between headend equipment and terminal device.
Matrix fingerprint generation method provided in an embodiment of the present invention, equipment and system, set fingerprint and show by headend equipment
Show type and fingerprint distributing position, and require that terminal device sets fingerprint display type and fingerprint point according to headend equipment
Cloth position display matrix fingerprint, not only increased the flexibility of display fingerprint, and not allowed with the fingerprint that matrix distribution formula shows
Easily concentrated and wiped, so as to improve piracy tracking ability.
Brief description of the drawings
Fig. 1 is the Organization Chart of the digital television system that first embodiment of the invention is provided；
Fig. 2 is the flow chart of the matrix fingerprint generation method that second embodiment of the invention is provided；
Fig. 3 is the flow chart of the matrix fingerprint generation method that third embodiment of the invention is provided；
Fig. 4 is the flow chart of the matrix fingerprint generation method that fourth embodiment of the invention is provided；
Fig. 5 is the flow chart of the matrix fingerprint generation method that fifth embodiment of the invention is provided；
Fig. 6 is the structural representation of the headend equipment that sixth embodiment of the invention is provided；
Fig. 7 is the structural representation of the terminal device that seventh embodiment of the invention is provided.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings to specific reality of the invention
Example is applied to be described in further detail.It is understood that specific embodiment described herein is used only for explaining the present invention,
Rather than limitation of the invention.It also should be noted that, for the ease of description, be illustrate only in accompanying drawing related to the present invention
Part rather than full content.
Fig. 1 is the Organization Chart of the digital television system that first embodiment of the invention is provided.As illustrated, the DTV system
System 10 includes headend equipment 11, distribution network 12 and terminal device 13.Wherein, terminal device 13 can be one, or
It is multiple.
Headend equipment 11 includes fingerprint generation module 111, and the fingerprint generation module can be to be provided for terminal device
The fingerprint display type and the device of display location of display, by this device operator can specify certain scope user or
Certain program is specified to require to include finger print information distribution on terminal device screen according to specified display location.In addition, preceding
Conditional access can also be included in end equipment 11（Conditional Access, CA）System 112, its function is to TV programme
Information is encrypted, and key is issued each smart card by cable TV network.
On headend equipment 11, the fingerprint that terminal device shows can be provided for by fingerprint generation module 111 and shown
Type, and the fingerprint distributing position corresponding with set fingerprint display type, root can be randomly selected in fingerprint matrices
According to selected fingerprint distributing position generator matrix finger print information, and by set fingerprint display type and the matrix that is generated
By distribution network 12, such as, cable TV network is distributed on each terminal device 13 finger print information.
Wherein it is possible to first by the fingerprint display type set by fingerprint generation module 111 and the matrix fingerprint for being generated letter
Breath is encrypted by CA systems, then will pass through distribution network by the fingerprint display type and matrix fingerprint information after encryption
12 are distributed on each terminal device 13.
In addition, headend equipment 11 can be by fingerprint display type and matrix fingerprint information directly by distribution in the above method
Network 12 is distributed on each terminal device 13；By fingerprint display type and matrix fingerprint information and can also be sent to
The audio/video information 113 of terminal device is synthesized by multiplexer 114, and the composite signal that will be obtained after synthesis is by distributing net
Network 12 is distributed on each terminal device 13.After terminal device 13 receives composite signal, can be obtained from the composite signal
Take matrix fingerprint information and fingerprint display type.
Terminal device 13 can include fingerprint parsing module 132, and the fingerprint parsing module 132 obtains headend equipment and sets in advance
The display type and the device of display location put, and according to set display location by Terminal fingerprints presentation of information in terminal device
On screen.Wherein, Terminal fingerprints information refers to the smart card number or Set Top Box number of terminal device.
On terminal device 13, the information that receiving front-end equipment 11 sends first, if what is received is fingerprint display class
Type and matrix fingerprint information, then using fingerprint parsing module 132 calculate the fingerprint display location corresponding with matrix fingerprint information,
And obtain the Terminal fingerprints information corresponding with fingerprint display type；If what is received is that fingerprint display type and matrix refer to
The composite signal of line information and audio/video information, then decomposed composite signal by demultiplexing module 131, then will be divided
The fingerprint display type and matrix fingerprint Information Pull fingerprint parsing module 132 that solution is obtained calculate corresponding with matrix fingerprint information
Fingerprint display location and obtain the Terminal fingerprints information corresponding with fingerprint display type.
Wherein, calculate corresponding fingerprint display location and obtain according to matrix fingerprint information and show class with the fingerprint
During the corresponding Terminal fingerprints information of type, if fingerprint display type is smartcard types, its corresponding terminal refers to
Line information is smart card number；If fingerprint display type is set top box type, its corresponding Terminal fingerprints information is machine top
Box number.
Finally, in the fingerprint display location display terminal finger print information for calculating.Wherein it is possible to call the figure of terminal device
Layer interface, the display terminal finger print information on the fingerprint display location calculated.Can also by the way of map overlay,
Finger print information is superimposed upon on Video Layer and is shown.Wherein, the finger print information on each display distributing position only shows one
Individual character, can not interfere with the scope control of the character normal video and show in several pixels, substantially.
By taking the terminal device 13 shown in Fig. 1 as an example, processing procedure after composite signal is received is described in detail：First pass through
Demultiplexing module 131 is decomposed composite signal, on the one hand will decompose the fingerprint display type and matrix fingerprint information for obtaining
Send to fingerprint parsing module 132, on the other hand will decompose the audio/video information for obtaining and send to decoder 135.Fingerprint is parsed
Module 132 calculates corresponding fingerprint display location and obtains corresponding with fingerprint display type according to matrix fingerprint information
Terminal fingerprints information, and fingerprint display location and Terminal fingerprints information are embedded into figure layer by figure layer controller 133, concurrently
In delivering to audio, video, figure layer synthesizer 134, and synthesized with the audio/video information decoded by decoder 135.Therefore,
Video after effect of the video that the user of terminal device finally watches for original video with fingerprint map overlay.
In embodiments of the present invention, the matrix fingerprint information in the digital television system, be as specified by headend equipment,
And multiple fingerprint display location is specified, if bootlegger wants to destroy finger print information, multitude of video missing image can be caused,
So as to be unable to reach pirate purpose, and substantially increase the anti-attack ability attacked relative to video finger print.
Wherein, the application scenarios of generation video finger print attack are：When piracy occurs, bootlegger regards to eliminate to lie in
Finger print information in frequency, can carry out a certain degree of change to video in cold blood, moreover, any some non-premeditated videos
Operation, all can in itself bring injury to video, so that video finger print fails.Therefore, no matter premeditated video change or
Non- premeditated video injury, commonly referred to collectively as video finger print is attacked.
Fig. 2 is the flow chart of the matrix fingerprint generation method that second embodiment of the invention is provided.The matrix fingerprint generation side
Method can apply in the headend equipment of the digital television system shown in Fig. 1.As shown in Fig. 2 methods described includes：
Step 210, headend equipment are provided for the fingerprint display type that terminal device shows.
Specifically, the present embodiments relate to headend equipment refer to providing video flowing, encryption information and fingerprint
The service system of information, headend equipment by cable TV network distributes the video flowing after encryption to go down, by terminal device（Than
Such as Set Top Box or smart card）Received and played to terminal user's viewing.Wherein, terminal user is smart card,
Each smart card represents a terminal user.
Step 220, headend equipment choose the fingerprint distributing position corresponding with fingerprint display type in fingerprint matrices, and
According to fingerprint distributing position generator matrix finger print information.
Specifically, when choosing fingerprint distributing position, its quantity for choosing fingerprint distributing position shows with set fingerprint
Type is corresponding, and how to choose these positions, and its selection mode can be random.Such as, when fingerprint display type is intelligence
During energy Card Type, then need to choose 16 fingerprint distributing positions, and can arbitrarily choose 16 fingerprint distributing positions.All choosings
The fingerprint distributing position composition matrix fingerprint information got, the matrix fingerprint information can be indicated with 16 systems.
Step 230, headend equipment send to terminal device fingerprint display type and matrix fingerprint information.Wherein, terminal
Equipment can be one, or multiple.
Specifically, headend equipment can also be by fingerprint display type and matrix fingerprint information and audio frequency and video to be sent
Information is synthesized, and the composite signal obtained after synthesis is sent to one or more terminal devices, so that terminal device is received
To after composite signal, matrix fingerprint information is extracted from the composite signal, the matrix fingerprint information is carried out accordingly again then
Treatment.
In embodiments of the present invention, fingerprint display type and fingerprint distributing position are set by headend equipment, and requires end
End equipment sets fingerprint display type and fingerprint distributing position display matrix fingerprint according to headend equipment, not only increased aobvious
Show the flexibility of fingerprint, and be not easy to be concentrated erasing with the fingerprint that matrix distribution formula shows, so as to improve piracy tracking energy
Power.
Fig. 3 is the flow chart of the matrix fingerprint generation method that third embodiment of the invention is provided.The matrix fingerprint generation side
Method can apply in the headend equipment of the digital television system shown in Fig. 1.As shown in figure 3, methods described includes：
Step 310, headend equipment are provided for the fingerprint display type that terminal device shows.Wherein, the fingerprint of setting shows
Show that type can include smartcard types or set top box type.
Step 320, headend equipment choose the fingerprint distributing position corresponding with fingerprint display type in fingerprint matrices.Its
In, if the fingerprint display type for setting is smartcard types, headend equipment chooses fingerprint distributing position in fingerprint matrices,
The quantity of the fingerprint distributing position is the first quantity.Wherein, the first quantity can be 16, and this is determined according to smartcard types
Quantity；If the fingerprint display type for setting is set top box type, headend equipment chooses fingerprint distribution in fingerprint matrices
Position, the quantity of the fingerprint distributing position is the second quantity.Wherein, the second quantity can be 12, and this is according to set top box type
The quantity for being determined.
Specifically, headend equipment can pre-set the coordinate grid for drawing a N × M, wherein, N, M are according to actual feelings
The numerical value that condition determines.After being determined to choose the quantity of fingerprint distributing position according to fingerprint display type, it is possible to random in the N × M
Coordinate grid in arbitrarily choose these fingerprint distributing positions, such as, operator chooses a coordinate grid, in the selected coordinate grid
A black round dot occurs.It is of course also possible to show that the coordinate grid has been selected with other display modes, such as, go out
An existing black triangles show that the coordinate grid is selected.Once selected, then the position where the coordinate grid just represents coordinate grid
Fingerprint distributing position.
By taking 16 × 16 coordinate grid as an example, 16 fingerprint distributing positions are arbitrarily chosen, as shown in table 1.Wherein, each refers to
Line distributing position has X-coordinate value and Y-coordinate value.
Table 1
Step 330, headend equipment obtain the coordinate value of each fingerprint distributing position, all coordinate value composition matrix fingerprint letters
Breath.
Specifically, as shown in table 1, according to order from left to right, from top to bottom, 16 fingerprint distribution positions are obtained successively
Put, naturally it is also possible to obtain this 16 fingerprint distributing positions according to other orders.Such as, the 1st X of fingerprint distributing position sits
Scale value is that 0, Y-coordinate value is 0, is expressed as 00000000,16 with the 1st corresponding binary-coded character of fingerprint distributing position and enters
Character representation processed is 00；2nd X-coordinate value of fingerprint distributing position is that 1, Y-coordinate value is 0, with the 1st fingerprint distributing position phase
Corresponding binary-coded character is expressed as 00010000, and hexadecimal character is expressed as 10；By that analogy, the 16th fingerprint distribution position
The X-coordinate value put is F, Y-coordinate value is F, is expressed as with the 1st corresponding binary-coded character of fingerprint distributing position
11111111, hexadecimal character is expressed as FF.Therefore, the corresponding matrix fingerprint information of 16 fingerprint distributing positions is（Adopt
Use hexadecimal representation）：00102223F4550677583999BBEC1E2EFF.
Step 340, headend equipment send to terminal device fingerprint display type and matrix fingerprint information.
Specifically, headend equipment can also be by fingerprint display type and matrix fingerprint information and audio frequency and video to be sent
Information is synthesized, and the composite signal obtained after synthesis is sent to one or more terminal devices.
In addition, the matrix fingerprint information in such scheme also includes default user scope, and/or default program model
Enclose.The default user scope, and/or default program scope are that the scope of the use finger print information of terminal device is entered
The restriction of one step.
In the embodiment of the present invention, fingerprint distributing position is arbitrarily chosen in fingerprint matrices by headend equipment, and by the fingerprint
The coordinate value of distributing position calculates finger print information to instruction terminal equipment as matrix fingerprint information according to these coordinate values
Display location, increased the difficulty that bootlegger destroys finger print information, and the distributed display of finger print information substantially increases finger
The anti-attack ability of line information.
Fig. 4 is the flow chart of the matrix fingerprint generation method that fourth embodiment of the invention is provided.The matrix fingerprint generation side
Method can apply in the terminal device of the digital television system shown in Fig. 1.As shown in figure 4, methods described includes：
Matrix fingerprint information and fingerprint display type that step 410, terminal device receiving front-end equipment send.Wherein, refer to
Line display type is smartcard types or set top box type.
Specifically, terminal device be likely to from headend equipment receive be matrix fingerprint information, fingerprint display type, with
And the composite signal of audio/video information, matrix fingerprint information and fingerprint display type can be got from the composite signal.
Step 420 terminal device calculates corresponding fingerprint display location and obtains and fingerprint according to matrix fingerprint information
The corresponding Terminal fingerprints information of display type.Terminal fingerprints information can be the smart card number or number of set-top box of terminal user
Code.
Specifically, if fingerprint display type is smartcard types, 16 fingerprint display locations can be calculated, and therewith
Corresponding Terminal fingerprints information is smart card number, and the smart card number is also 16, so can be 16 fingerprint display positions
Put the smart card number of display 16；If fingerprint display type is set top box type, 12 fingerprint display positions can be calculated
Put, and corresponding Terminal fingerprints information is Set Top Box number, the Set Top Box number is also 12, so can be in 12 fingers
Line display location shows the smart card number of 12.
Step 430 terminal device is in fingerprint display location display terminal finger print information.
Specifically, terminal device can also calling figure layer interface, in fingerprint display location display terminal finger print information.Than
Such as, terminal device calculates 16 fingerprint display locations, and corresponding Terminal fingerprints information is 16 smart card numbers, then
16 smart card numbers are shown successively 16 fingerprint display locations.
In such scheme, terminal device calculates the detailed process of corresponding fingerprint display location according to matrix fingerprint information
It is：
（1）Terminal device obtains all coordinate values of received matrix fingerprint information.
Specifically, with shown in table 1, wherein, the corresponding matrix fingerprint information of 16 fingerprint distributing positions is（Enter using 16
Tabulation is shown）：00102223F4550677583999BBEC1E2EFF.
（2）Terminal device sets an origin, and all of matrix fingerprint information are calculated centered on set origin
The corresponding position of coordinate value, the position needs the fingerprint display location of display terminal finger print information for terminal device.Such as, with end
The upper left corner on the screen of end is origin, and the figure layer of terminal device is called in its fingerprint display location then relative to the skew of origin
Interface, Terminal fingerprints information is included on screen according to the fingerprint display location calculated, can be using map overlay
Mode, finger print information is superimposed upon on Video Layer and is shown.It is of course also possible to the other positions on terminal screen as former
Put to calculate fingerprint display location.
In embodiments of the present invention, terminal device is set in strict accordance with headend equipment fingerprint display type and fingerprint
Distributing position carrys out display terminal finger print information, increased bootlegger destroy finger print information difficulty, and finger print information distribution
Formula shows the anti-attack ability for substantially increasing finger print information.
Fig. 5 is the flow chart of the matrix fingerprint generation method that fifth embodiment of the invention is provided.The matrix fingerprint generation side
Method can apply in the terminal device of the digital television system shown in Fig. 1.As shown in figure 5, methods described includes：
Matrix fingerprint information and fingerprint display type that step 510, terminal device receiving front-end equipment send.Wherein, square
Battle array finger print information also includes default user scope, and/or default program scope.
Whether step 520, terminal device judgment matrix finger print information include default user scope.If it is, performing
Step 530；If it is not, then performing step 540.
Step 530, whether the user of terminal device is judged within the default user scope, if it is, performing step
Rapid 540；If it is not, then performing step 570.
Above-mentioned steps 520 and step 530 are the further restrictions that terminal user uses scope.In addition, if matrix fingerprint
Information also includes default program scope, and matrix fingerprint information is got from its composite signal with audio/video information
, whether the audio/video information for receiving also is judged in the default program scope, if it is, performing step 540；Such as
It is really no, then perform step 570.
Step 540, terminal device read fingerprint display type.
Step 550, terminal device calculate corresponding fingerprint display location and obtain and fingerprint according to matrix fingerprint information
The corresponding Terminal fingerprints information of display type.
Step 560, terminal device are by calling figure layer interface in fingerprint display location display terminal finger print information.
Step 570, flow terminate.
To the judgement of matrix fingerprint information in the embodiment of the present invention, only meet default scope in matrix fingerprint information
When, fingerprint display location is just calculated, do not calculate otherwise, the efficiency of generator matrix fingerprint can be so improved, and enhance generation
The specific aim of matrix fingerprint.
Fig. 6 is the structural representation of the headend equipment that sixth embodiment of the invention is provided.The headend equipment can be used for holding
Matrix fingerprint generation method in row above-described embodiment.As shown in fig. 6, the headend equipment 60 includes：Setup module 61, fingerprint
Generation module 62 and sending module 63.
Setup module 61 is used to be provided for the fingerprint display type that terminal device shows.
Fingerprint generation module 62 is used to choose the fingerprint distribution corresponding with the fingerprint display type in fingerprint matrices
Position, and according to the fingerprint distributing position generator matrix finger print information.
Sending module 63 is used to send the fingerprint display type and matrix fingerprint information to terminal device.
In one embodiment, the fingerprint generation module 62 in fingerprint matrices specifically for choosing fingerprint distribution position
Put, obtain the coordinate value of each fingerprint distributing position, all coordinate values constitute matrix fingerprint information, the fingerprint distributing position
Quantity is the first quantity, corresponding with smartcard types；Or, for choosing fingerprint distributing position in fingerprint matrices, obtain
The coordinate value of each fingerprint distributing position, all coordinate values constitute matrix fingerprint information, and the quantity of the fingerprint distributing position is
Second quantity, it is corresponding with set top box type.Wherein, the fingerprint display type includes smartcard types or set top box type.
In another embodiment, sending module 63 is additionally operable to fingerprint display type and matrix fingerprint information and pending
The audio/video information for sending is synthesized, and the composite signal obtained after the synthesis is sent to terminal device.Wherein, the square
Battle array finger print information also includes default user scope, and/or default program scope.The default user scope, and/or default
Program scope be that further restriction has been done to the scope of the use finger print information of terminal device.
In embodiments of the present invention, fingerprint display type and fingerprint distributing position are set by headend equipment, and requires end
End equipment sets fingerprint display type and fingerprint distributing position display matrix fingerprint according to headend equipment, not only increased aobvious
Show the flexibility of fingerprint, and be not easy to be concentrated erasing with the fingerprint that matrix distribution formula shows, so as to improve piracy tracking energy
Power.
Fig. 7 is the structural representation of the terminal device that seventh embodiment of the invention is provided.The terminal device can be used for holding
Matrix fingerprint generation method in row above-described embodiment.As shown in fig. 7, the terminal device 70 includes：Receiver module 71, reception
Module 72 and display module 73.
Receiver module 71 is used for the matrix fingerprint information that receiving front-end equipment sends.
Fingerprint parsing module 72 is used to calculate corresponding fingerprint display location according to the matrix fingerprint information and obtains
The Terminal fingerprints information corresponding with the fingerprint display type.Wherein, Terminal fingerprints information can be the intelligence of terminal user
Card number code or Set Top Box number.
Specifically, if fingerprint display type is smartcard types, 16 fingerprint display locations can be calculated, and therewith
Corresponding Terminal fingerprints information is smart card number, and the smart card number is also 16, so can be 16 fingerprint display positions
Put the smart card number of display 16；If fingerprint display type is set top box type, 12 fingerprint display positions can be calculated
Put, and corresponding Terminal fingerprints information is Set Top Box number, the Set Top Box number is also 12, so can be in 12 fingers
Line display location shows the smart card number of 12.
Display module 73 is used in fingerprint display location display terminal finger print information.
Specifically, terminal device can also calling figure layer interface, in fingerprint display location display terminal finger print information.Than
Such as, terminal device calculates 12 fingerprint display locations, and corresponding Terminal fingerprints information is 12 Set Top Box numbers, then
12 Set Top Box numbers are shown successively 12 fingerprint display locations.
In one embodiment, all seats of the fingerprint parsing module 72 specifically for the acquisition matrix fingerprint information
Scale value, and an origin is set, the corresponding position of the coordinate value is calculated centered on the origin, the coordinate value is corresponding
Position is the fingerprint display location.Wherein, the fingerprint display type is smartcard types or set top box type.
In embodiments of the present invention, terminal device is set in strict accordance with headend equipment fingerprint display type and fingerprint
Distributing position carrys out display terminal finger print information, increased bootlegger destroy finger print information difficulty, and finger print information distribution
Formula shows the anti-attack ability for substantially increasing finger print information.
The embodiment of the present invention additionally provides a kind of matrix fingerprint generation system, and matrix fingerprint generation system can be numeral
Television system, it includes headend equipment in above example, terminal device and for leading between headend equipment and terminal device
The distribution network of letter.
Obviously, it will be understood by those skilled in the art that above-mentioned of the invention each module or each step can be by as above
Described communication terminal device is implemented.Alternatively, the program that the embodiment of the present invention can be can perform with computer installation realize,
Such that it is able to be stored in being performed by processor in storage device, described program can be stored in a kind of computer can
Read in storage medium, storage medium mentioned above can be read-only storage, disk or CD etc.；Or make them respectively
Each integrated circuit modules is made, or the multiple modules or step in them are fabricated to single integrated circuit module and come real
It is existing.So, the present invention is not restricted to the combination of any specific hardware and software.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.It is all any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of matrix fingerprint generation method, it is characterised in that methods described includes：
Headend equipment is provided for the fingerprint display type that terminal device shows；
Headend equipment pre-sets coordinate grid, is determined to choose the quantity of fingerprint distributing position according to the fingerprint display type, with
Machine chooses fingerprint distributing position in the coordinate grid, obtains the coordinate value of each fingerprint distributing position, all coordinate value compositions
Matrix fingerprint information；
Headend equipment sends to terminal device the fingerprint display type and matrix fingerprint information.
2. matrix fingerprint generation method according to claim 1, it is characterised in that the fingerprint display type includes intelligence
Card Type or set top box type, it is described to be determined to choose the quantity of fingerprint distributing position according to the fingerprint display type, exist at random
Fingerprint distributing position is chosen in the coordinate grid, the coordinate value of each fingerprint distributing position is obtained, all coordinate values constitute matrix
Finger print information, specifically includes：
Headend equipment chooses fingerprint distributing position in fingerprint matrices, obtains the coordinate value of each fingerprint distributing position, all seats
Scale value constitutes matrix fingerprint information, and the quantity of the fingerprint distributing position is the first quantity, corresponding with the smartcard types；
Or,
Headend equipment chooses fingerprint distributing position in fingerprint matrices, obtains the coordinate value of each fingerprint distributing position, all seats
Scale value constitutes matrix fingerprint information, and the quantity of the fingerprint distributing position is the second quantity, corresponding with the set top box type.
3. matrix fingerprint generation method according to claim 1 and 2, it is characterised in that the matrix fingerprint information is also wrapped
Include default user scope, and/or default program scope, the headend equipment is by the fingerprint display type and matrix fingerprint
Information sends to terminal device and specifically includes：
Headend equipment is synthesized the fingerprint display type and matrix fingerprint information and audio/video information to be sent,
And send to terminal device the composite signal obtained after the synthesis.
4. a kind of matrix fingerprint generation method, it is characterised in that methods described includes：
Matrix fingerprint information and fingerprint display type that terminal device receiving front-end equipment sends；
Terminal device obtains all coordinate values of the matrix fingerprint information, set an origin, and is with set origin
Scheming calculates the corresponding position of all coordinate values of matrix fingerprint information, and display terminal finger print information is needed as terminal device
Fingerprint display location, and obtain the Terminal fingerprints information corresponding with the fingerprint display type；
Terminal device shows the Terminal fingerprints information in the fingerprint display location.
5. matrix fingerprint generation method according to claim 4, it is characterised in that the fingerprint display type is smart card
Type or set top box type.
6. a kind of headend equipment, it is characterised in that the headend equipment includes：
Setup module, for being provided for the fingerprint display type that terminal device shows；
Fingerprint generation module, for pre-setting a coordinate grid, determines to choose fingerprint distribution according to the fingerprint display type
The quantity of position, chooses fingerprint distributing position in the coordinate grid at random, obtains the coordinate value of each fingerprint distributing position, institute
Matrix fingerprint information is constituted by coordinate value；
Sending module, for the fingerprint display type and matrix fingerprint information to be sent to terminal device.
7. headend equipment according to claim 6, it is characterised in that the fingerprint display type include smartcard types or
Set top box type, the fingerprint generation module obtains each fingerprint specifically for choosing fingerprint distributing position in fingerprint matrices
The coordinate value of distributing position, all coordinate values constitute matrix fingerprint information, and the quantity of the fingerprint distributing position is the first quantity,
It is corresponding with the smartcard types；Or, for choosing fingerprint distributing position in fingerprint matrices, obtain the distribution of each fingerprint
The coordinate value of position, all coordinate values constitute matrix fingerprint information, and the quantity of the fingerprint distributing position is the second quantity, with institute
State set top box type corresponding；
The matrix fingerprint information also includes default user scope, and/or default program scope, and the sending module is also used
Synthesized in by the fingerprint display type and matrix fingerprint information and audio/video information to be sent, and by the conjunction
The composite signal obtained after is sent to terminal device.
8. a kind of terminal device, it is characterised in that the terminal device includes：
Receiver module, the matrix fingerprint information sent for receiving front-end equipment and fingerprint display type；
Fingerprint parsing module, all coordinate values for obtaining the matrix fingerprint information, and an origin is set, with the origin
Centered on calculate the corresponding position of the coordinate value, the corresponding position of the coordinate value is the fingerprint display location, and is obtained
Take the Terminal fingerprints information corresponding with the fingerprint display type；
Display module, for showing the Terminal fingerprints information in the fingerprint display location.
9. terminal device according to claim 8, it is characterised in that the fingerprint display type is smartcard types or machine
Top box type.
10. a kind of matrix fingerprint generates system, it is characterised in that the system includes：Described at least one claim 6 or 7
Headend equipment, the terminal device described in claim 8 or 9 and between the headend equipment and the terminal device
The distribution network of communication.
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