CN201332437Y - Integrated circuit board for set-top box - Google Patents
Integrated circuit board for set-top box Download PDFInfo
- Publication number
- CN201332437Y CN201332437Y CNU200820177947XU CN200820177947U CN201332437Y CN 201332437 Y CN201332437 Y CN 201332437Y CN U200820177947X U CNU200820177947X U CN U200820177947XU CN 200820177947 U CN200820177947 U CN 200820177947U CN 201332437 Y CN201332437 Y CN 201332437Y
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- interface
- circuit board
- integrated circuit
- card
- electrically connected
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Abstract
An integrated circuit board for a set-top box comprises a main integrated circuit board comprising a signal conversion device for converting the receiving signals to signals which can be played by a TV set through demodulation, demultiplexing, decryption, descrambling and decoding operations and a first interface electrically connected with the signal conversion device; and a sub-integrated circuit board provided thereon with a program storage unit and a second interface which is electrically connected with the program storage unit and matches the first interface. The main integrated circuit board is electrically connected with the sub-integrated circuit board through the first interface and the second interface.
Description
Technical field
The utility model relates to the set-top box technique field, is meant a kind of integrated circuit board that is used for set-top box especially.
Background technology
At present, the paying digital television program is broadcast after by operator's encryption.Through the paying digital television program of encryption, after the set-top box of user side receives, need satisfy specific conditions and could decipher rating, be i.e. condition rating (CA, Conditional Access).Be provided with the mandate deciphering module that is used for realizing that CA receives in the user side set-top box integrated circuit board, be generally program storage unit (PSU), as the program storage unit (PSU) of authorizing deciphering module to the user smart card authentication after, can be decrypted rating to encrypted digital TV program.
Usually the set-top box integrated circuit board is one production, and the program storage unit (PSU) of set-top box integrated circuit board is fixed on the set-top box mainboard, but because the CA encryption system of different regions is often different, this just needs to adopt different program storage unit (PSU)s to be decrypted rating.Cause to be applicable to other areas, make troubles so just for the production and the maintenance of set-top box at the all-in-one top box integrated circuit board that a certain area produces.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of integrated circuit board that is used for set-top box, to realize making things convenient for the production and the maintenance of set-top box.
The integrated circuit board that is used for set-top box that the utility model provides comprises:
Wherein, described chromacoder 100, it is provided with master chip 103, the demodulation chip 102 that is connected with master chip 103 respectively, video filtering/amplifying unit 104, RAM memory 105, preceding control unit 106, intelligent card interface unit 107 and the card reading interface that is electrically connected with first interface 108, the frequency demultiplier 101 that is connected with demodulation chip 102.
Preferable, described first interface 108 and second interface 109 are the EMI interface.
Wherein, described first interface 108 and second interface 109 are pci interface.
Wherein, described first interface 108 and second interface 109 are two groups.
In addition, described daughter card 2 also comprises the Ethernet control unit 111 that is electrically connected with second interface 109.
Preferable, described daughter card 2 also comprises the USB module that is electrically connected with second interface 109.
As seen from the above, the integrated circuit board that is used for set-top box that the utility model provides can be realized modularization production, and the integrated circuit board that is about to integrated production is divided into mainboard card and daughter card, and mainboard card and daughter card link together by interface.The mainboard card is general, and daughter card can be selected according to the CA encryption system of different regions, also can change according to user's needs.Because the production of set-top box integrated circuit board can not be subjected to the influence of CA encryption system difference, can speed production, and because mainboard card and daughter card can split, also bring convenience to maintenance.
Interface can adopt EMI interface or pci interface, can satisfy the needs of several data transmission.
Interface adopts two groups to make being connected of mainboard card and daughter card more firm.
Daughter card is provided with the Ethernet control unit, makes the set-top box integrated circuit board have the access to the Internet function
Daughter card is provided with the USB module, for the set-top box integrated circuit board provides expansion interface.
Description of drawings
Fig. 1 is mainboard card and daughter card schematic diagram;
Fig. 2 is a mainboard card structure block diagram;
Fig. 3 is the daughter card structured flowchart, and wherein scheming A is the daughter card structured flowchart that has program storage unit (PSU), and figure B is the daughter card structured flowchart that has program storage unit (PSU) and Ethernet control unit;
The structured flowchart of the set-top box integrated circuit board that Fig. 4 forms for being pegged graft by mainboard card and daughter card;
The structured flowchart of the set-top box integrated circuit board that Fig. 5 forms for being pegged graft by mainboard card and daughter card.
Embodiment
The utility model is arranged on program storage unit (PSU) on the daughter card separately, and by interface mainboard card and daughter card is electrically connected.The different daughter card of set-top box production that is directed to different regions like this gets final product, and can make things convenient for the production of set-top box.
Fig. 1 is mainboard card and daughter card schematic diagram, referring to Fig. 1 the plate of the utility model set-top box is elaborated.
For mainboard card 1, the external memory interface that comprises chromacoder 100 and be electrically connected (EMI interface) 108 with chromacoder 100, wherein chromacoder 100 comprises master chip 103, the connected demodulation chip 102 of difference, video filtering/amplifying unit 104, RAM memory 105, preceding control unit 106, intelligent card interface unit 107, also comprise the frequency demultiplier 101 that is connected with demodulation chip 102, wherein:
Frequency demultiplier 101 is used for by the mode of spectrum transformation the high frequency spectrum of the signal that receives being transformed to the frequency spectrum that demodulation chip 102 can be discerned, and is about to high-frequency signal and is converted to demodulation chip 102 discernible intermediate-freuqncy signals.As adopting NXP 1600 type frequency demultipliers.
Intelligent card interface unit 107 is used to provide the card reading interface of smart card.Master chip 103 reads user's smart card information by intelligent card interface unit 107 card reading interfaces.
The authorization information that obtains after the smart card information that the basis that is used for master chip 103 reads from intelligent card interface unit 107 is handled described demodulation chip 102 is verified, and be used for the digital signal that obtains after demodulation chip 102 digitized processing is carried out the decoding of audio, video data, and be transferred to video filtering/amplifying unit 104.Can adopt the ST5105 chip as master chip 103.
The vision signal that video filtering/amplifying unit 104 is used for receiving is carried out filtering and is amplified back output.
Before control unit 106 be used to realize mutual between set-top box and the user comprise that remote controller receives subelement, button, system's run indicator etc.The user sends instruction by the button on remote controller or the preceding control unit 106, and the remote controller of preceding control unit 106 receives subelement and receives the instruction that the user sends, as channel selection information etc., and the state of run indicator reflection system of the system operation of preceding control unit 106.
For daughter card 2, have the EMI interface 109 that the EMI interface 108 with mainboard card 1 is complementary on the daughter card 2, mainboard card 1 and daughter card 2 are plugged on together by the EMI interface that is complementary.Daughter card 2 is provided with program storage unit (PSU) 110, and it stores decoding program, and master chip 103 obtains decoding program by described EMI interface from the program storage unit (PSU) 110 on the daughter card 2 and is decrypted to the received signal.On the daughter card 2 Ethernet control unit 111 can also be arranged,, make mainboard card 1 be connected to network and realize two-way functions such as video request program by daughter card 2 also by it Ethernet physical interface that comprises.
Fig. 2 is a mainboard card structure block diagram, and as shown in the figure, mainboard card 1 has been provided with EMI interface 108.
Fig. 3 is the daughter card structured flowchart, and wherein scheming A is the daughter card structured flowchart that has program storage unit (PSU), and figure B is the daughter card structured flowchart that has program storage unit (PSU) and Ethernet control unit.As shown in the figure, daughter card 2 is provided with the EMI interface 109 that the EMI interface 108 with mainboard card 1 is complementary.
A figure below in conjunction with Fig. 1 and Fig. 3 is introduced the integrated circuit board that the utility model provides, has the EMI interface 109 that the EMI interface 108 with mainboard card 1 is complementary on the daughter card 2, when mainboard card 1 and daughter card 2 are plugged on together by EMI interface 108 and the EMI interface 109 that is complementary, realized physical connection and electrical connection, formed set-top box integrated circuit board with complete function.Master chip 103 on the mainboard card 1 obtains decoding program by the program storage unit (PSU) 110 on daughter card 2 and is decrypted to the received signal.
The structured flowchart of the set-top box integrated circuit board that Fig. 4 and Fig. 5 form for being pegged graft by mainboard card and daughter card, as shown in the figure, after the daughter card 2 shown in the A figure of mainboard card shown in Figure 21 and Fig. 3 is pegged graft by the EMI interface 108 that is complementary and EMI interface 109, be the set-top box integrated circuit board of standard, after EMI interface 108 that the daughter card 2 shown in the B figure of mainboard card shown in Figure 21 and Fig. 3 is complementary and EMI interface 109 are pegged graft, be set-top box integrated circuit board with access to the Internet function.
Hence one can see that, adopts the design of the EMI interface that is complementary in mainboard card and daughter card setting, can realize the modularization production of integrated circuit board, only need change daughter card for different CA encryption systems and can use, and brings convenience for the production and the maintenance of set-top box integrated circuit board.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle; any modification of being done, be equal to replacement, improvement etc.; the mode that for example adopts bus interface such as PCI to substitute the EMI interface or adopt data wire to connect mainboard card and daughter card substitutes socket connection; all should be included within the protection range of the present utility model; also can be arranged on the daughter card as other modules that meet the set-top box of EMI interface, as USB interface etc.
Claims (7)
1. an integrated circuit board that is used for set-top box is characterized in that, comprising:
Mainboard card (1), comprise chromacoder (100) and first interface (108) that is electrically connected with chromacoder (100), chromacoder (100) wherein, being used for by demodulation, demultiplexing, deciphering, descrambling and decode operation is the signal that television set can be play with the conversion of signals that receives;
Daughter card (2), second interface (109) that it is provided with program storage unit (PSU) (110), is electrically connected with program storage unit (PSU) (110), described second interface (109) and first interface (108) coupling;
Mainboard card (1) and daughter card (2) are electrically connected by first interface (108) and second interface (109).
2. integrated circuit board according to claim 1, it is characterized in that, described chromacoder (100), it is provided with master chip (103), the demodulation chip (102) that is connected with master chip (103) respectively, video filtering/amplifying unit (104), RAM memory (105), preceding control unit (106), intelligent card interface unit (107) and the card reading interface that is electrically connected with first interface (108), the frequency demultiplier (101) that is connected with demodulation chip (102).
3. integrated circuit board according to claim 1 and 2 is characterized in that, described first interface (108) and second interface (109) are the EMI interface.
4. integrated circuit board according to claim 1 and 2 is characterized in that, described first interface (108) and second interface (109) are pci interface.
5. integrated circuit board according to claim 1 and 2 is characterized in that, described first interface (108) and second interface (109) are two groups.
6. integrated circuit board according to claim 1 and 2 is characterized in that, described daughter card (2) also comprises the Ethernet control unit (111) that is electrically connected with second interface (109).
7. integrated circuit board according to claim 1 and 2 is characterized in that, described daughter card (2) also comprises the USB module that is electrically connected with second interface (109).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820177947XU CN201332437Y (en) | 2008-11-17 | 2008-11-17 | Integrated circuit board for set-top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820177947XU CN201332437Y (en) | 2008-11-17 | 2008-11-17 | Integrated circuit board for set-top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201332437Y true CN201332437Y (en) | 2009-10-21 |
Family
ID=41225822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820177947XU Expired - Lifetime CN201332437Y (en) | 2008-11-17 | 2008-11-17 | Integrated circuit board for set-top box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201332437Y (en) |
-
2008
- 2008-11-17 CN CNU200820177947XU patent/CN201332437Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151208 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee after: haier group corporation Patentee after: Qingdao Haier Electric Appliance Co., Ltd. Patentee after: Beijing Haier Information Technology Co., Ltd. Patentee after: QINGDAO HAIER MULTI-MEDIA CO., LTD. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee before: haier group corporation Patentee before: Qingdao Haier Electric Appliance Co., Ltd. Patentee before: Beijing Haier Information Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |