CN201118779Y - Digital TV receiving device - Google Patents
Digital TV receiving device Download PDFInfo
- Publication number
- CN201118779Y CN201118779Y CNU2007201940414U CN200720194041U CN201118779Y CN 201118779 Y CN201118779 Y CN 201118779Y CN U2007201940414 U CNU2007201940414 U CN U2007201940414U CN 200720194041 U CN200720194041 U CN 200720194041U CN 201118779 Y CN201118779 Y CN 201118779Y
- Authority
- CN
- China
- Prior art keywords
- signal
- digital television
- transport stream
- serial bus
- universal serial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a digital television receiving device applied to an application system, which comprises: a signal receiving module, a common interface (Common Interface) connector, a universal serial bus controller and a common interface controller. Wherein, the signal receiving module receives and converts a broadcast signal into a transport stream signal, and the common interface connector is used for being inserted and connected by a conditional access module. What is more, the universal serial bus controller is used for transmitting the transport stream signal to the application system, and the common interface controller is connected between the signal receiving module and the universal serial bus controller, and decodes the transport stream signal through the conditional access module and then transmits the signal to the universal serial bus controller after receiving the transport stream signal with a security code. Therefore, the purpose that the application system can use the digital broadcast signal with the security code can be reached.
Description
Technical field
The utility model relates to a kind of digital television receiving apparatus, is meant a kind of universal sequential bus interface especially and can read the digital television receiving apparatus of Conditional Access Module.
Background technology
Along with starting broadcasting successively of global digital TV channel, various countries classify this as one of important development project invariably, and mostly be under the situation of simulated television at the television set of general family at present, the energy rating Digital Television signal in order not need to buy digital television in addition, the easiest mode, be on traditional simulated television, to install top box of digital machine (Digital Set-Top Box additional, Digital STB), expand TV functions, as connecting the be connected bridge of digital television signal with simulated television.
And day by day popularizing along with computer, consumption is popular watches that the mode of Digital Television is except utilizing television set, more can watch, and the receiving system of Digital Television also just extends to the Digital Television card that is used on personal computer or the notebook computer from top box of digital machine, digital television by computer in the family.With at present, computer often can carry out rating Digital Television signal by built-in 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.And it is online in digital television broadcasting now, except the digital broadcast service that provides free, more can receive (Conditional Access by condition, CA) system derives multiple brand-new value-added service, for example: ecommerce, video signal program request, online game, pay-per-view (PayPer View, PPV) and personalized service such as value added.
The user can't use other abundanter Digital Television value added service or the more digital TV channel of rating in computer if effectively during reading conditions receiver module (CAM).Moreover, if the Digital Television dealer will freely receive after signal encrypts, then watch that by computer the digital TV channel that the user of free reception signal can watch just can more reduce in the future.
In addition, though Conditional Access Module is to utilize 16 slots to be connected with the pcmcia interface of 68 pin bit numbers at present, but adopt general-purpose interface (Common Interface because be, CI) standard, but not therefore the specification of existing computer card interface also just can't be useful in the pcmcia interface reading device in the general computer.So this has been for originally having had the user of the Conditional Access Module that is used for top box of digital machine or digital television, just can't be similarly with computer in the collocation of Digital Television card use, and then also just can't use more value added service on computers.
Summary of the invention
In view of this, problem to be solved in the utility model, be that the purpose of this utility model is to overcome the deficiencies in the prior art and defective, a kind of digital television receiving apparatus is proposed, integration has reading conditions receiver module (Conditional Access Module, CAM) digital television receiving apparatus of function, and utilize the universal serial bus that generally uses at present as and system between coffret.Thus, allow digital television receiving apparatus not only be able to simple and be conveniently used in various systems, and the Digital Television signal that can receive code-locked more deciphers, use for system end.
In order to achieve the above object, according to the scheme that the utility model proposed, provide a kind of digital television receiving apparatus, be applied to an application system to play Digital Television, it comprises: a signal receiving module receives a broadcasting signal, and changes out a transport stream signal; One general-purpose interface connector provides the Conditional Access Module of pegging graft; One universal serial bus controller transmits this transport stream signal and gives this application system; An and general-purpose interface controller, be connected between this signal receiving module and this universal serial bus controller, and when receiving this transport stream signal of a code-locked, read by this Conditional Access Module and to be transferred to this universal serial bus controller again after a decoding data is deciphered.At last, the transport stream signal that this universal serial bus is transmitted after decoding is used to application system.
The utlity model has following useful technique effect: the utility model is to integrate the digital television receiving apparatus with reading conditions receiver module function, and utilize the universal serial bus that generally uses at present as and system between coffret.Thus, allow digital television receiving apparatus not only be able to simple and be conveniently used in various systems, and the Digital Television signal that can receive code-locked more deciphers, use and play for system end.
For enabling further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.
Description of drawings
Fig. 1 is the embodiment calcspar of the utility model digital television receiving apparatus;
Fig. 2 is the Application Example schematic diagram of the utility model digital television receiving apparatus.
Symbol description among the figure
1 digital television receiving apparatus
11 signal receiving modules
111 radio frequency harmony devices
112 demodulators
12 general-purpose interface connectors
13 universal serial bus controllers
14 general-purpose interface controllers
15 USB connectors
2 Conditional Access Modules
21 smart cards
3 application systems
Embodiment
The utility model mainly is to integrate to can read Conditional Access Module (Conditional AccessModule, CAM) digital television receiving apparatus, and utilize universal serial bus (USB) as with the data transmission interface of application system end (as: personal computer, notebook computer etc.), to allow the user be able to receive and use in the application system termination easily the digital broadcast signal of code-locked.
Please refer to Fig. 1, be the embodiment calcspar of the utility model digital television receiving apparatus.As shown in the figure, the utility model provides a kind of digital television receiving apparatus 1, and it is applied to an application system 3, and in order to receive a broadcasting signal in application system 3, to play Digital Television.Digital television receiving apparatus 1 comprises: a signal receiving module 11, a general-purpose interface (CommonInterface, CI) connector 12, a universal serial bus controller 13, a general-purpose interface controller 14 and a USB connector 15.Wherein, signal receiving module 11 is for example to receive digital satellite broadcasting signal (DVB-S, DVB-S2) or DTB Digital Terrestrial Broadcasting signal (DVB-T), and is changed out a transport stream (Transport Stream, TS) signal.
12 of general-purpose interface connectors are in order to the Conditional Access Module 2 of pegging graft to be provided.Wherein, general-purpose interface connector 12 can for example be to be designed to computer card (PC Card) interface connector in design, as pcmcia interface, and the pin bit of computer card interface connector is defined as the specification of general-purpose interface.Therefore, the user can use the Conditional Access Module 2 that originally is used on digital television or the top box of digital machine to be plugged in general-purpose interface connector 12 easily.
General-purpose interface controller 14 is to be connected between signal receiving module 11 and the universal serial bus controller 13, in order to judge is when receiving the transport stream signal of a code-locked at present, just reading a decoding data by Conditional Access Module 2 deciphers, and the transport stream signal after will deciphering again is transferred to universal serial bus controller 13, and then universal serial bus controller 13 just can send the transport stream signal after the decoding processing and the application of application system 3 to carry out the rear end to.Wherein, be further to have a smart card 21 in the Conditional Access Module 2, in order to store the required decoding data of transport stream signal of this code-locked of decoding.
In addition, if general-purpose interface controller 14 judges it is when receiving the transport stream signal of a non-code-locked, the digital broadcast signal of promptly representing use that present user receives is the free signal that receives, so, general-purpose interface controller 14 just directly will this non-code-locked the transport stream signal be transferred to universal serial bus controller 13, and the transport stream signal that universal serial bus controller 13 again will this non-code-locked sends application system 3 to.
Moreover, USB connector 15 in the digital television receiving apparatus 1 is to connect universal serial bus controller 13, in order to be plugged in application system 3, thus, after the decoding of being exported in order to transmission universal serial bus controller 13 or the transport stream signal of non-code-locked give application system 3.
Subsidiary one what carry is further to comprise in the aforesaid signal receiving module 11: a radio frequency harmony device (RF Tuner) 111 and one demodulator 112.Wherein, radio frequency harmony device 111 is after receiving broadcasting signal, and broadcasting signal is converted to an intermediate frequency signal, and then demodulator 112 (as: QPSK/8PSK demodulator) is to connect radio frequency harmony device 111, and intermediate frequency signal is carried out demodulation and exports this transport stream signal.
Yet those skilled in the art are scrutable to be, the design in the signal receiving module 11 can change because of the device of practical application or demand are different or adjust, and is not in order to limit scope of the present utility model at this.
Refer again to Fig. 2, be the Application Example schematic diagram of the utility model digital television receiving apparatus.Because the utility model is to adopt universal serial bus to be used as the coffret of data, therefore can be conveniently used in various application system 3, is to illustrate with notebook computer among the figure.As shown in the figure, digital television receiving apparatus 1 is to be plugged on the application system 3 by USB connector 15, and grafting Conditional Access Module 2 (comprising smart card 21) more is provided.
Therefore, when user's desire is watched Digital Television by application system 3, just can directly digital television receiving apparatus 1 be plugged in application system 3, and more can further Conditional Access Module 2 be inserted in the digital television receiving apparatus 1, to allow digital television receiving apparatus 1 no matter be the digital broadcast signal that receives code-locked or non-code-locked, all can be simply processing by digital television receiving apparatus 1 offer application system 3 and use and play.
So, with the design of the present utility model of arranging in pairs or groups again of present trend, allow the user be able to design because of separation between machine and card under the situation that has a Conditional Access Module 2, can freely select to be used in digital television or top box of digital machine, be used in application systems 3 such as computer also or by the utility model.
In sum, the utility model is to integrate the digital television receiving apparatus with reading conditions receiver module function, and utilizes present universal serial bus conduct of generally using and the coffret between the system.Thus, allow digital television receiving apparatus not only be able to simple and be conveniently used in various systems, and the Digital Television signal that can receive code-locked more deciphers, use and play for system end.
The above, only be the detailed description and the accompanying drawing of specific embodiment of the utility model, be not in order to restriction the utility model, all scopes of the present utility model answer the scope of claims to be as the criterion, those skilled in the art in field of the present utility model, can think easily and variation or modify all can be encompassed in the scope that claims define.
Claims (8)
1. a digital television receiving apparatus is characterized in that, is applied to an application system to play Digital Television, and it comprises:
One signal receiving module receives a broadcasting signal, and changes out a transport stream signal;
One general-purpose interface connector provides the Conditional Access Module of pegging graft;
One universal serial bus controller transmits this transport stream signal and gives this application system; And
One general-purpose interface controller, be connected between this signal receiving module and this universal serial bus controller, and when receiving this transport stream signal of a code-locked, read by this Conditional Access Module and to be transferred to this universal serial bus controller again after a decoding data is deciphered.
2. digital television receiving apparatus as claimed in claim 1 is characterized in that, described signal receiving module is for receiving the signal receiving module of digital satellite broadcasting signal or DTB Digital Terrestrial Broadcasting signal.
3. digital television receiving apparatus as claimed in claim 2 is characterized in that, described signal receiving module further comprises:
One radio frequency harmony device receives this broadcasting signal, and this broadcasting signal is converted to an intermediate frequency signal; And
One demodulator connects this radio frequency harmony device, and this intermediate frequency signal is carried out demodulation and exports this transport stream signal.
4. digital television receiving apparatus as claimed in claim 1 is characterized in that, described general-purpose interface connector is the computer card interface connector.
5. digital television receiving apparatus as claimed in claim 4 is characterized in that, the pin bit definition of described computer card interface connector meets the general-purpose interface specification.
6. digital television receiving apparatus as claimed in claim 1 is characterized in that described Conditional Access Module further has a smart card, stores this decoding data to decipher the transport stream signal of this code-locked.
7. digital television receiving apparatus as claimed in claim 1 is characterized in that, described general-purpose interface controller is when receiving this transport stream signal of a non-code-locked, and the transport stream signal that transmits this non-code-locked is given this universal serial bus controller.
8. digital television receiving apparatus as claimed in claim 1, it is characterized in that, further comprise a USB connector, connect this universal serial bus controller, and be plugged in this application system, transmit this transport stream signal that this universal serial bus controller exported thus and give this application system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201940414U CN201118779Y (en) | 2007-11-07 | 2007-11-07 | Digital TV receiving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201940414U CN201118779Y (en) | 2007-11-07 | 2007-11-07 | Digital TV receiving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118779Y true CN201118779Y (en) | 2008-09-17 |
Family
ID=39993378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201940414U Expired - Fee Related CN201118779Y (en) | 2007-11-07 | 2007-11-07 | Digital TV receiving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118779Y (en) |
-
2007
- 2007-11-07 CN CNU2007201940414U patent/CN201118779Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20151107 |
|
| EXPY | Termination of patent right or utility model |