CN101083754A - Reading apparatus for condition receiving module - Google Patents
Reading apparatus for condition receiving module Download PDFInfo
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- CN101083754A CN101083754A CN 200610083664 CN200610083664A CN101083754A CN 101083754 A CN101083754 A CN 101083754A CN 200610083664 CN200610083664 CN 200610083664 CN 200610083664 A CN200610083664 A CN 200610083664A CN 101083754 A CN101083754 A CN 101083754A
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- data flow
- access module
- conditional access
- reading device
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Abstract
This reading device (RD) consists of a connecting port (CP), a computer card control unit (CCC), a general port (GP), a data flow signal processor (DFSP) and a conditional access module (CA). CP is used to connect with a computer. Via CP, CCC receives the first data flow (FDF) transferred from the computer. DSFP judges and transfers FDF to CA via GP and receives the second data flow (SDF) converted/ output by CA. Thus, the aim of processing FDF and converting/ outputting SDF via RD is reached.
Description
Technical field
The present invention relates to a kind of reading device of module, particularly relate to a kind of reading device that is used to handle the Conditional Access Module of digital television signal.
Background technology
Interactive high more along with what user-selected digital television function was powerful more, system dealer provided, system dealer just must provide customized service content for the individual user, and its expenses standard also varies with each individual.Therefore the dealer of system needs a cover to be enough to guarantee that the dealer of system provides income, the user watched right of control of digitlization service and the system that charges according to different demands.Operation by Conditional Access Module, system dealer is when program sends, the operation of carrying out scrambling (Scramble) and encrypting (Encrypt), after treating that signal is sent to the Digital Television client, select the difference of rating programme content again according to client, programme signal is carried out descrambling (Descramble) and deciphering (Decrypt), the user just can watch program or use digital television service, and the dealer of system also can reach charge by the operation of Conditional Access Module and the mechanism of customized service is provided.
Differ based on the employed Conditional Access Module difference of each dealer of system, charging mechanism, just there is difference basically in the box specification on the designed teaching machine of each dealer of system, to such an extent as under box framework on the teaching machine of embedded Conditional Access Module, exist the phenomenon that system's dealer's regionality is monopolized, cause consumer's right that forfeiture is selected in the box product on teaching machine.The man-to-man matching model of box on system dealer and the teaching machine makes that also box manufacturer must be according to the dealer of system custom-made by size on the teaching machine.Therefore, countries in the world man is when promoting Digital Television, all the problem for Conditional Access Module inside beats one's brains, DVB, U.S. rule ATSC are advised in Europe and sundial ISDB standard is also just actively formulated general interface standard and comprise, Conditional Access Module is independent, and then the standardization level of raising digital television receiving apparatus.Wherein, Europe formulated Conditional Access Module general-purpose interface standard DVB-CI (Common Interface, CI); The U.S. has then formulated the NRSS interface earlier, has formulated POD (Point-of-Deployment, POD) standard by OpenCable subsequently; Japan has also formulated the standard of HIS at its ISDB system.
Yet along with day by day popularizing of computer, another rating group of Digital Television comes rating by personal computer or mobile computer, and computer can the rating digital television signal by interior dress or external digital television receiving apparatus (as digital TV card).But most of digital television signal by this mode institute energy rating only limits to free reception (Free-to-Air, FTA) signal, if the user wants to use other abundanter Digital Television value added service or the more digital TV channel of rating, or even the Digital Television dealer factor such as encrypts with free received signal in the future, this certainly will cause the user must change newer digital television receiving apparatus, make digital television receiving apparatus have the function of reading conditions receiver module, this not only increases user's burden, has more wasted digital television receiving apparatus originally.
Summary of the invention
The object of the present invention is to provide a kind of reading device of Conditional Access Module, it can be decrypted the digital television data stream (Data Stream) of encryption by Conditional Access Module by the mode of external this reading device.
To achieve these goals, the invention provides a kind of reading device of Conditional Access Module, be connected in a computer, it is characterized in that, comprising: a connecting interface, a computer card control unit, a general-purpose interface and a data flow signal processor.This connecting interface is in order to connect this computer, and the computer card control unit by this connecting interface to receive one first data flow that this computer is transmitted, differentiate this first data flow by data flow signal processor again, so that this first data flow is transferred to this Conditional Access Module by this general-purpose interface, and further receive one second data flow of output that this Conditional Access Module is changed.
Therefore can make the digital television receiving apparatus that only can receive free received signal originally on computers by the present invention, data stream encrypted can be deciphered carrying out rating through the external Conditional Access Module of the present invention's institute energy, and need not to change digital television receiving apparatus.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is that the embodiment of one of reading device of Conditional Access Module of the present invention uses schematic diagram; And
Fig. 2 is the framework calcspar of the reading device preferred embodiment of Conditional Access Module of the present invention.
Wherein, Reference numeral:
The reading device 1 of Conditional Access Module
Connecting interface 10
Computer card control unit 20
General-purpose interface 30
Data flow signal processor 40
The first direct memory access (DMA) unit 401
The second direct memory access (DMA) unit 402
General-purpose interface control unit 404
Digital television receiving apparatus 8
Embodiment
Please join Fig. 1, for the embodiment of one of reading device of Conditional Access Module of the present invention uses schematic diagram, as shown in the figure, the user can utilize computer interior dress of 5 collocation or external digital television receiving apparatus 8 to come the rating digital television program, present embodiment is illustrated in external mode, wherein because digital television receiving apparatus 8 there is no design condition receiving system (Conditional Access System, CAS), so only can the free received signal of rating, digital television receiving apparatus 8 is by USB in addition, PCMCIA, interface such as PCI or PCI-e (not shown) is connected with computer 5.And digital television receiving apparatus 8 can for example receive the DTB Digital Terrestrial Broadcasting signal by antenna 80, and transferring to computer 5 by RF tuner (RF Tuner) 81 and demodulator (Demodulator) 82 frequency conversions of being carried out and after separating the modulation function, so that decipher, come playing image and sound by display unit 51 that is connected in computer 5 and loudspeaker arrangement 52 again by the decoder 502 that belongs to the rear end in the computer 5.
Connect described, the DTB Digital Terrestrial Broadcasting signal not only includes free received signal (being the unencrypted data flow) and also comprises most encrypting traffics, be directed to this, just discern the data flow that is received by the driver unit 501 in the computer 5, if the unencrypted data flow, then driver unit 501 just directly transfers to processing and the broadcast of decoder 502 to carry out above-mentioned rear end; Otherwise, if data stream encrypted, then after judging, exports driver unit 501 reading device 1 of one first data flow 101 to Conditional Access Module of the present invention, reading device 1 by Conditional Access Module can condition of contact receiver module 6, the decryption information that is read in the smart card 7 by Conditional Access Module 6 is deciphered first data flow 101 again, and by the reading device 1 of Conditional Access Module pass back one the deciphering after second data flow 102 to computer 5, with the processing operation of carrying out the rear end again and play, make the user to utilize computer and watch the digital television program of all channels.Wherein, the reading device 1 of Conditional Access Module can for example connect computer 5 by pcmcia interface or plug-in card bus (CardBus) interface (not shown).
Please refer to Fig. 2, be the framework calcspar of the reading device preferred embodiment of Conditional Access Module of the present invention.As shown in the figure, the invention provides a kind of reading device 1 of Conditional Access Module, it is connected in computer 5, and the reading device 1 of this Conditional Access Module comprises: a connecting interface 10, a computer card control unit 20, a general-purpose interface (Common Interface) 30 and one data flow signal processor 40.Wherein this connecting interface 10 can for example be pcmcia connector or plug-in card bus interface connector, in order to be connected in computer 5.And one first data flow 101 that computer card control unit 20 can be transmitted with receiving computer 5 by connecting interface 10, wherein first data flow 101 is an encrypting traffic, after being encrypting traffic by data flow signal processor 40 identifications first data flow 101 again, transfer to the Conditional Access Module 6 that is connected by general-purpose interface 30, wherein general-purpose interface 30 is a pcmcia connector, but the definition of the pressure point of this pcmcia connector is to define according to the general-purpose interface specification, and the general-purpose interface specification can for example be European specification (DVB), U.S.'s specification (POD), Japan's specification (HIS) or Chinese specification general-purpose interfaces such as (DMB).Read the data decryption in the smart card 7 and first data flow 101 is deciphered second data flow of exporting 102 in order to condition of acceptance receiver module 6 more afterwards.At last, with this second data flow 102 of decrypted data stream be back to computer 5 via computer controlled fabrication unit 20 and connecting interface 10.
And above-mentioned mentioned data flow signal processor 40 is not only in order to receive and to discern first data flow 101, also in order to access condition receiver module 6, and this data flow signal processor 40 comprises: one first direct memory access (DMA) unit 401, one second direct memory access (DMA) unit 402, a scrambler identifier 403 and a general-purpose interface control unit 403.Wherein, the first direct memory access (DMA) unit 401 is in order to receive and to store first data flow 101, and the first direct memory access (DMA) unit 401 is an output port (Outbound) direct memory access (DMA) device, to receive first data flow of being exported from computer 5 101 of having encrypted.Afterwards by scrambler identifier 403 read this first data flow 101 and through identification and confirm as encrypting traffic after, drive general-purpose interface control unit 404 and carry out work, with obtain with Conditional Access Module 6 between be connected, and first data flow 101 can be transferred to Conditional Access Module 6.And Conditional Access Module 6 becomes second data flow 102 by the decryption information that reads in the smart card 7 with 101 deciphering of first data flow, receives this second data flow 102 of having deciphered by general-purpose interface control unit 404 again.At last, storing second data flow, 102 backs by second a direct memory access (DMA) unit 402 for input port (Inbound) direct memory access (DMA) device is exported.
In sum, the present invention can connect a Conditional Access Module 6 and read decryption information in smart card 7, not only can reach first data flow, 101 data flow deciphering with a code-locked, second data flow 102 after will deciphering again transfers to the purpose that computer 5 carries out rating, also comprises following several advantages:
1, avoids the waste of digital television receiving apparatus 8: on computer 5, connect the function that the present invention can have reading conditions receiver module 6, but the user need not eliminate original just rating encrypted digital TV program of digital television receiving apparatus 8 of exempting from pay channel that only can receive, to cut the waste.
2, increase the flexibility of rating: because the digital television system dealer is numerous, the user does not need because of changing different system dealers, and change whole digital television receiving apparatus 8, only need obtain the Conditional Access Module 6 that the dealer of this system is provided, all channels that can come the dealer of this system of rating to provide by the present invention increase the flexibility of user on rating.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (12)
1, a kind of reading device of Conditional Access Module is connected in a computer, it is characterized in that, comprising:
One connecting interface is in order to connect this computer;
One computer card control unit receives one first data flow that this computer transmits by this connecting interface;
One general-purpose interface is in order to connect a Conditional Access Module; And
One data flow signal processor is discerned this first data flow, so that this first data flow is transferred to this Conditional Access Module by this general-purpose interface, and and then receive one second data flow of output that this Conditional Access Module is changed;
Wherein, this second data flow returns to this computer via this computer card control unit and this connecting interface again.
2, the reading device of Conditional Access Module according to claim 1 is characterized in that, this connecting interface is a pcmcia connector or a plug-in card bus interface connector.
3, the reading device of Conditional Access Module according to claim 1 is characterized in that, this first data flow is an encrypting traffic.
4, the reading device of Conditional Access Module according to claim 1 is characterized in that, this usefulness interface is a pcmcia connector.
5, the reading device of Conditional Access Module according to claim 4 is characterized in that, the pressure point definition of this pcmcia connector is to be defined as the general-purpose interface specification.
6, the reading device of Conditional Access Module according to claim 5 is characterized in that, this general-purpose interface specification is European specification, U.S.'s specification, Japanese specification or Chinese specification.
7, the reading device of Conditional Access Module according to claim 1 is characterized in that, this second data flow is a decrypted data stream, and it reads decryption information in the smart card so that the deciphering of this first data flow is converted by this Conditional Access Module.
8, a kind of data flow signal processor in order to access one Conditional Access Module, is characterized in that, comprising:
One first direct memory access (DMA) unit receives one first data flow;
One general-purpose interface control unit, in order to this first data flow transmission to this Conditional Access Module, and and then receive one second data flow of output that this Conditional Access Module is changed;
One scrambler identifier drives this general-purpose interface control unit according to this first data flow; And one second direct memory access (DMA) unit, in order to export this second data flow.
9, the reading device of Conditional Access Module according to claim 8 is characterized in that, this first direct memory access (DMA) unit is an output port direct memory access (DMA) device.
10, the reading device of Conditional Access Module according to claim 8 is characterized in that, this first data flow is an encrypting traffic.
11, the reading device of Conditional Access Module according to claim 8 is characterized in that, this second data flow is a decrypted data stream, and it is for reading decryption information in the smart card so that the deciphering of this first data flow is converted by this Conditional Access Module.
12, the reading device of Conditional Access Module according to claim 8 is characterized in that, this second direct memory access (DMA) unit is an input port direct memory access (DMA) device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610083664A CN100576903C (en) | 2006-06-02 | 2006-06-02 | The reading device of Conditional Access Module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610083664A CN100576903C (en) | 2006-06-02 | 2006-06-02 | The reading device of Conditional Access Module |
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| Publication Number | Publication Date |
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| CN101083754A true CN101083754A (en) | 2007-12-05 |
| CN100576903C CN100576903C (en) | 2009-12-30 |
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| CN200610083664A Expired - Fee Related CN100576903C (en) | 2006-06-02 | 2006-06-02 | The reading device of Conditional Access Module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938358A (en) * | 2010-08-31 | 2011-01-05 | 中兴通讯股份有限公司 | Modem, and method and system for realizing mobile television function |
| CN102447955A (en) * | 2011-12-27 | 2012-05-09 | 深圳国微技术有限公司 | Condition access chip of digital television and realization method of condition access |
| CN105554540A (en) * | 2015-12-31 | 2016-05-04 | 深圳国微技术有限公司 | Method and device for achieving network interface in conditional access module |
| RU168100U1 (en) * | 2016-06-17 | 2017-01-18 | Абылай Оспан | DEVICE FOR RECEIVING AND PROCESSING A DIGITAL TV SIGNAL |
-
2006
- 2006-06-02 CN CN200610083664A patent/CN100576903C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938358A (en) * | 2010-08-31 | 2011-01-05 | 中兴通讯股份有限公司 | Modem, and method and system for realizing mobile television function |
| CN102447955A (en) * | 2011-12-27 | 2012-05-09 | 深圳国微技术有限公司 | Condition access chip of digital television and realization method of condition access |
| CN102447955B (en) * | 2011-12-27 | 2015-04-15 | 深圳国微技术有限公司 | Condition access chip of digital television and realization method of condition access |
| CN105554540A (en) * | 2015-12-31 | 2016-05-04 | 深圳国微技术有限公司 | Method and device for achieving network interface in conditional access module |
| CN105554540B (en) * | 2015-12-31 | 2019-04-09 | 深圳国微技术有限公司 | The implementation method and device of a kind of network interface in condition receiving card |
| RU168100U1 (en) * | 2016-06-17 | 2017-01-18 | Абылай Оспан | DEVICE FOR RECEIVING AND PROCESSING A DIGITAL TV SIGNAL |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100576903C (en) | 2009-12-30 |
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Owner name: HAIJHUA SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUAWEI SCIENCE CO., LTD. Effective date: 20090417 |
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Effective date of registration: 20090417 Address after: Taiwan County, Taipei, China Applicant after: AzureWave Technologies, Inc. Address before: Taipei City, Taiwan, China Applicant before: Huawei Techniques Co., Ltd. |
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Granted publication date: 20091230 Termination date: 20160602 |