CN2580522Y - Computer external data receiving equipment with intelligent card reading function - Google Patents
Computer external data receiving equipment with intelligent card reading function Download PDFInfo
- Publication number
- CN2580522Y CN2580522Y CN 02256817 CN02256817U CN2580522Y CN 2580522 Y CN2580522 Y CN 2580522Y CN 02256817 CN02256817 CN 02256817 CN 02256817 U CN02256817 U CN 02256817U CN 2580522 Y CN2580522 Y CN 2580522Y
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- dvb
- data
- smart card
- intelligent card
- computing machine
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Abstract
The utility model relates to computer external data receiving equipment with an intelligent card reading function, which comprises a DVB-C demodulator, an intelligent card interface, a main control processor, a USB interface chip and a memory, wherein the DVB-C demodulator can complete the operations of tuning, demodulation and signal channel decoding for wired television signals, and output DVB/MPEG2 transmitting flow data to the main control processor; the intelligent card interface is used for inserting intelligent cards; the DVB-C demodulator, the intelligent card interface, the USB interface chip and the memory are respectively controlled by the main control processor, and the USB interface chip realizes communication with a computer. The utility model is an external device for computers. Therefore, the utility model has the advantage of convenient installation for users, and can be immediately used when inserted, and the utility model can receive digital television programs and IP data broadcast. Meanwhile, the utility model can also be used as an intelligent card reading device which conforms to the PC/SC specification for computers.
Description
Technical field
The present invention relates to the data broadcasting field, refer to have the external data receiver of USB (Universal Serial Bus, universal serial bus structural) computing machine interface, that possess the smart card reader function especially.
Background technology
The reception that is used for computing machine of the production firm of data receiver both at home and abroad is by CATV (cable television) DVB-C (Digital Video Broadcast-Cable at present, digital video broadcast for cable) the signal receiving equipment of broadcasting all is the card of PCI (peripheral element extension interface) interface, need open computer cabinet during use inserts card, in ordinary family user's popularization process, have any problem, when the condition receiving system of integrated IP, need the other additional intelligence card of computing machine card-reading apparatus simultaneously.
Smart card is as authentication and authorize data carrier, just more and more used, on personal computer, use smart card just to need the external smart card reader of computing machine, common card reader generally all is the card-reading apparatus of simple function independently on the market, also have computer entry devices such as some and keyboard to combine, but with also not seeing that data receiver is integrated.
Summary of the invention
The utility model provides the computing machine that possesses the smart card reader function external data receiver, an external physical equipment as computing machine, use USB interface, use a USB cable and computing machine to link, meet PC/SC (personal Computer/Smart Card as personal computer in as data receiver, refer to personal computer/smart card, it is a standard architecture of formulating for the smart card access windows platform) the smart card reader equipment of standard.
A kind of external data receiver of computing machine that possesses the smart card reader function of the present utility model comprises: DVB-C detuner, intelligent card interface, main processing controller and USB interface chip; Described DVB-C detuner is handled, is changed input signal under the control of main processing controller, output DVB/MPEG2 (DVB:Digital Video Broadcasting, broadband data broadcasting; MPEG2: Motion Picture Experts Group, the live image that a kind of compression ratio is bigger and the compression standard of sound) transmit flow data is given main processing controller; Described intelligent card interface is used to the smart card of pegging graft; Described main processing controller is controlled DVB-C detuner, intelligent card interface and USB interface chip respectively, and the data on the smart card are read in control, transmit the different data stream of two classes, be DVB/MPEG2 transmitting data stream and intelligent card data stream, communicate by letter with external computer realization by the USB interface chip.
Receiving equipment of the present utility model also includes storer and links to each other with described main processing controller, is used to store data and program.
Described intelligent card interface is to meet the card reader physical interface that ISO7816 requires.
One power module is connected with described each ingredient, in order to provide each several part required power supply.
The utility model is a computing machine external device, be convenient to user installation, plug and play can receiving digital television program and IP data broadcasting, the ability that possesses integrated various digital television conditional access system (CA) can also integrated IP-based data broadcasting condition receive and data encryption system.This equipment also can be used as the smart card reader equipment that meets the PC/SC standard of computing machine simultaneously.
Description of drawings
Fig. 1 is the theory diagram of the utility model embodiment.
Fig. 2 is the circuit theory diagrams of the utility model embodiment.
Embodiment
The utility model can be designed to the package casing that a main circuit board and can manifest interface, shell can be designed to difformity, size, color as required, USB cable is a standard, and power module is the universal component that meets the demands, and the core of this product is a main circuit board.Because this product is the external unit of computing machine, so its core technology scheme relates to two parts: main circuit board of the present utility model and computer terminal, division is as follows:
(1) main circuit board
Main circuit board electricity theory diagram such as Fig. 1, the side circuit layout is seen Fig. 2.
As shown in Figure 1, be integrated with on the main circuit board of the present utility model: DVB-C detuner, main processing controller, intelligent card interface, USB interface chip and storer.Input signal is the digital cable TV signal that meets the DVB standard, and its QAM (Quadrature Amplitude Modulation quadrature amplitude modulation) modulation system has: 16QAM, 32QAM, 64QAM, 128QAM or 256QAM.The signal that meets USB (USB (universal serial bus)) version 1.1 standards from usb bus output.
DVB-C detuner 11: under the control of main processing controller 13, finish the digital cable TV signal tuning, separate the channel-decoding work that is in harmonious proportion, output DVB/MPEG2 transport stream.
Intelligent card interface 12: for meeting the card reader physical interface that ISO7816 requires, can read the smart card of T=0 arbitrarily or 1, the application that can provide CA system and other need visit smart card is simultaneously used.
Storer 15: storage data and program.
USB interface chip 14: with the device of usb bus interface, under the control of main processing controller, realize and the communicating by letter of PC, carry out DVB (Digital Video Broadcasting, broadband data broadcasting)/MPEG2 (Motion Picture Experts Group, the live image that a kind of compression ratio is bigger and the compression standard of sound) transmission of transmit flow data and the transmission of SMART card (smart card) data, under the management of main processing controller, data stream (the DVB data that two classes are different have been realized, the highest steady speed 8Mbps and intelligent card data stream, the maximum data rate 100Kbps) by same interface chip and the requirement that computing machine USB physical interface steadily transmits.
Main processing controller 13: main processing controller is managed the operation of whole hardware device, each device work is read the data of SMART card, and is delivered in the computing machine on the hardware equipment, or the Data Receiving of computing machine got off to be written in the card, play reading and writing instrument (bridge).And by the USB interface chip realize with computing machine communicate by letter and computing machine in software collaboration work.
Main processing controller of the present utility model uses the SAA7240 of PHILIP company, its core is one 32 RISC (Reduced Instruction Set Computer) central processing unit (CPU), its function of finishing is a control DVB-C detuner, the read-write operation of smart card, the initialization of USB interface, receive and filter the data of DVB-C detuner output, and control is given computing machine with the useful data and the intelligent card data that receive by USB interface, control command and parameter are transmitted by USB interface by computing machine, go to control the concrete action of each parts after explaining through main processing controller.
One of the utility model purposes is as PC smart card reader independently, can be used for any computer utility that needs smart card.Two of purposes is to combine as a complete Conditional Access (promptly all data are all being broadcasted transmission, but have only authorized user just can receive data designated) Data Receiving subscriber equipment with the receiving equipment function.
Principle of work of the present utility model is: the front end in broadcasting uses specific scrambling algorithm and control word (control word) that the broadcast data that will transmit is carried out scrambling (disturb), Descrambling Algorithms that receiving end software is built-in but only obtain correct control word and just can carry out descrambling to data, thereby the correct content that receives broadcasting, the content-data that the broadcaster controls respectively hope uses different control words, broadcast head end is broadcasted control word encryption back and subscriber authorisation (being that each user can receive those broadcast datas) information get off with content-data together simultaneously, receiving end computer filters out encrypted control word and authorization data, give smart card by main processing controller, built-in decipherment algorithm and this user's authority information in the smart card, after smart card is deciphered control word according to the data of sending into, give computing machine by main processing controller, then computing machine just can use this control word that the scrambled data that receives is carried out descrambling, thereby obtains wishing the data that receive.If this user does not have there is not corresponding authority in smart card or the smart card, then computing machine can not descrambling data, thereby does not receive correct data.Realized like this under broadcast channel can not the situation of two-way authentication, data and user's reception control function.Because the amount of broadcast data that transmits is very big, kind is also very many, smart card capacity and processing power are limited, can not handle the data of a large amount of like this and multiple class, and encrypted control word and authorization message are very limited, smart card can be handled fully, and decipherment algorithm and authority information are existed in the smart card, and the high security of smart card has guaranteed the security of whole condition receiving system.
(2) computer terminal
The receiving equipment of the new open form of this practicality need with collaborative computer work, computer terminal software mainly comprises driver and application software.
Wherein driver is divided into USB device driver, NDIS (Network Driver InterfaceStandard, network drive interface standard) network driver, SMART card reader driver; Application software comprises tuning control program and other application program.
The USB device driver realizes that computing machine is to the basic management of USB device with communicate to connect.Finish the reception of transmit flow data and the reception of SMART card data.Realize the interface of application program control USB device and the interface that visit receives data.
The NDIS network driver is realized the format conversion of DVB/MPEG2 transmit flow data to IP datagram.Realize that USB device receives the interface of data and TCP/IP (Transmission ControlProtocol/Internet Protocol is used for one group of communications protocol of network) protocol stack.
SMART card reader driver, realization meets the driving of the computer intelligence card read-write equipment of PC/SC standard.
Tuner program is an application program, contains user interface, makes the user can import the state of tuning parameter and facilities for observation operation.
Other application program comprises that software for analysing stock, MPEG2 look the realization that audio decoder software, information browse software etc. are concrete application functions.
Above-mentioned part combines, and has finished two functions: receive the data by Digital Television DVB-C channel transfer, send computing machine to by USB interface; Computing machine is by USB interface, and the data on the smart card are read and write in control, and these two functions combine, and greatly facilitate user's use, have reduced cost.
Claims (4)
1, a kind of external data receiver of computing machine that possesses the smart card reader function is characterized in that comprising: DVB-C detuner, intelligent card interface, main processing controller and USB interface chip; Described DVB-C detuner is handled, is changed input signal under the control of main processing controller, and output DVB/MPEG2 transmit flow data is given main processing controller; Described intelligent card interface is used to the smart card of pegging graft; Described main processing controller is controlled DVB-C detuner, intelligent card interface and USB interface chip respectively, and the data on the smart card are read in control, transmit the different data stream of two classes, DVB/MPEG2 transmitting data stream of promptly importing from the DVB-C detuner and the intelligent card data of reading from smart card stream are communicated by letter with external computer realization by the USB interface chip.
2, the described external data receiver of computing machine that possesses the smart card reader function of claim 1 is characterized in that: also include storer and be connected with described main processing controller, be used to store data and program.
3, claim 1 or the 2 described external data receivers of computing machine that possess the smart card reader function is characterized in that: described intelligent card interface is to meet the card reader physical interface that ISO7816 requires.
4, claim 1 or the 2 described external data receivers of computing machine that possess the smart card reader function is characterized in that: also include power module and be connected with described each ingredient, in order to provide each several part required power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02256817 CN2580522Y (en) | 2002-09-26 | 2002-09-26 | Computer external data receiving equipment with intelligent card reading function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02256817 CN2580522Y (en) | 2002-09-26 | 2002-09-26 | Computer external data receiving equipment with intelligent card reading function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580522Y true CN2580522Y (en) | 2003-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02256817 Expired - Lifetime CN2580522Y (en) | 2002-09-26 | 2002-09-26 | Computer external data receiving equipment with intelligent card reading function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580522Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409165C (en) * | 2006-08-25 | 2008-08-06 | 北京飞天诚信科技有限公司 | Device and method for providing intelligent card interface by large scale storage equipment |
| CN105163150A (en) * | 2015-08-28 | 2015-12-16 | Tcl集团股份有限公司 | Smart card control device and control method thereof |
-
2002
- 2002-09-26 CN CN 02256817 patent/CN2580522Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409165C (en) * | 2006-08-25 | 2008-08-06 | 北京飞天诚信科技有限公司 | Device and method for providing intelligent card interface by large scale storage equipment |
| CN105163150A (en) * | 2015-08-28 | 2015-12-16 | Tcl集团股份有限公司 | Smart card control device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120926 Granted publication date: 20031015 |