CN1509080A - Modulized digital television set top box - Google Patents
Modulized digital television set top box Download PDFInfo
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- CN1509080A CN1509080A CNA021568677A CN02156867A CN1509080A CN 1509080 A CN1509080 A CN 1509080A CN A021568677 A CNA021568677 A CN A021568677A CN 02156867 A CN02156867 A CN 02156867A CN 1509080 A CN1509080 A CN 1509080A
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- top box
- module card
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Abstract
The TV set-top box comprises a main set-top box and a module card. The said module card comprises USB driving chip and connected hard disc. The module card through a device bus, memory bus connects to the said main set-top box. The method for calling software of the module card includes following steps. The software module of main set-top box is setup inside the main set-top box, and the software module of module card is setup in the module card. Function for interface calling contained in the software module of the main set-top box through the interface calling function calls the software module of module card directly. Enhanced service software runs in memory. In the invention, physical interface between module card and main board realizes functional separation between basic function of digital TV and function of value added service so as to enhance expandability of set-top box.
Description
Technical field
The present invention relates to digital television techniques, particularly relate to a kind of function open-ended modularity digital TV set-top box.
Background technology
The Digital Television set-top box belongs to digital television system terminal receiving unit, it mainly finishes the function of demodulation, demultiplexing, descrambling, decoding and graphical display to digital TV program stream, except these basic business, it can also realize as stock browse, the function of value-added service such as video request program and recreation.At present, the set-top box product that can see on the market has all possessed the function of basic service and value-added service, its basic functional principle as shown in Figure 1:
Digital TV set-top box is selected an available channel in a plurality of 8MHz input channels by tuning.When input was digital channel, the one tunnel connect output through RF ring is perfectly straight, and handle through qam demodulator on another road, by condition receiving general interface module (option), handles safety and scramble information.The information of descrambling is delivered to MPEG-2 transmission demultiplexing.When not employing condition received general module, the transport stream of the output of qam demodulator (TS) received general descrambler descrambles through condition.Transport stream behind the descrambling splits packet in the MPEG-2 demodulation multiplexer, extract wherein required business information and programme content, through the decoding of MPEG-2 digital audio/video, is reduced into incompressible digital audio-video signal.Under the control of set-top box control unit, convert image, sound, figure to analog audio-video output, thereby finish the basic service function.
Digital TV set-top box is receiving control information and other data also, handle through control unit, and control business or program receive, and value-added service and screen display are provided.
But the function of above-mentioned set-top box is relative closure and is difficult to expansion, and it can not can not occur along with new technology according to the function service of user's demand selector top box, increases new business.The reason that causes these problems be exactly the hardware plan of existing set-top box product all be to link up with mutually with software requirement, promptly the demand of software has determined that the hardware system configuration is as the capacity of chip model, memory etc.The hardware plan of deciding like this can only overlap the demand of software at this, if the software that demand is low is used on this set-top box, only can cause the waste of hardware resource; And for the higher software of demand, the hardware resource of this set-top box is not enough to again support, has seriously restricted popularizing and development of set-top box.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of modular digital TV set-top box, and described set-top box realizes basic function and value-added service functional separation with Digital Television by the physical interface of module card and mainboard, has strengthened the extensibility of set-top box.
Be insertion that solves module card and the identification of extracting, the invention allows for a kind of device of primary set-top box identification module card.
For realizing the software interface of module card and set-top box mainboard, the invention allows for a kind of method of calling module card software.
Modular digital TV set-top box of the present invention is achieved in that it comprises primary set-top box, also comprises a module card at least; Described module card comprises USB chip for driving and the hard disk that is attached thereto; Each described module card is connected with described primary set-top box respectively by device bus, rambus.
The method of primary set-top box identification module card of the present invention comprises the steps:
Step 1, primary set-top box is finished system initialization;
Step 2, by the physical interface of primary set-top box and module card, read the information that is solidificated on the module card, if read failure, change step 4; If read success, carry out next step;
Step 3, to the information that reads check and correction authentication, if authentication success then moves and strengthens business software on the module card, change step 5 then; If authentication is unsuccessful, then point out error message, carry out next step;
Step 4, directly move the basic service software of primary set-top box;
Step 5, end.
The method of a kind of calling module card software of the present invention is included in the primary set-top box software module is set in the primary set-top box, and the module card software module is set in module card; The interface interchange function is set in the primary set-top box software module, and by the direct calling module card software of interface interchange function module, operation strengthens business software in internal memory.
Modular digital TV set-top box of the present invention realizes basic function and value-added service functional separation with Digital Television by the physical interface of module card and mainboard, has strengthened the extensibility of set-top box.
Description of drawings
The set-top box theory diagram of Fig. 1 prior art;
Fig. 2 is the structural representation of the modularization digital TV set-top box of the present invention's proposition;
Fig. 3 is the method flow diagram of primary set-top box identification module card of the present invention;
Fig. 4 is the connection diagram of modularization digital TV set-top box of the present invention;
Fig. 5 is the structural representation of module card of the present invention;
Fig. 6 is the software module schematic diagram of modularization digital TV set-top box of the present invention;
Fig. 7 is the method schematic diagram of a kind of calling module card software of the present invention.
Embodiment
Fig. 1 introduced in background technology in detail, did not give unnecessary details for this reason.
Fig. 2 has provided the structure of the modularized design of set-top box of the present invention, is about to set-top box and has been divided into primary set-top box and two parts of module card, and as shown in Figure 2, primary set-top box is mainly finished the realization of basic service function; And the value-added service function only could realize after will having this function module card insertion machine top box.Therefore primary set-top box wants to discern the module card of different manufacturers, different business function.
Fig. 3 has illustrated how primary set-top box is discerned module card in the present invention.Mainly be by canned data on the read module card, and these information are authenticated, thereby whether the determination module card is effective, also provide program command redirect parameter simultaneously for software interface.Its groundwork flow process is as follows:
The system initialization to primary set-top box is finished in start.
By the physical interface of primary set-top box and module card, read the information that is solidificated on the module card, if read success, then module card information is authenticated; If do not read, then directly move the basic service software of primary set-top box.
The authentication of module card mainly is the check and correction checking that the card information that reads is carried out manufacturer, product type, software numbering, program space size, initial address and accesses to your password.If authentication success, then operation strengthens business software; If authentication is unsuccessful, then point out error message, and operation basic service software.
Fig. 4 has provided the connection diagram of modularization digital TV set-top box of the present invention.In order to better meet the extensibility of primary set-top box, just need the physical interface of module card and primary set-top box will meet the demand of miscellaneous service as much as possible.The physical interface of module card of the present invention and primary set-top box mainly comprises: rambus, device bus.Rambus mainly designs the demand of internal memory in order to satisfy ever-increasing set-top box business software, and it can increase jumbo storage chip on module card provide more memory headroom by rambus for primary set-top box; Device bus has then been realized expansion hardware capability equipment on the module card and physical connection between the primary set-top box, and realize that primary set-top box is to expanding the control and the transfer of data of hardware device. device bus adopts usb bus in the present invention, and rambus adopts the sdram interface bus.
The interface of described rambus meets the description of following table:
The interface of described device bus meets the description of following table:
| The rambus interface | I/O | Describe |
| SDRAM_DATA[31..0] | I/O | The internal storage data bus |
| SDRAM_ADD[15..0] | Output | Memory bus address |
| HSCKB | Output | The internal memory clock line |
| CKE | Output | Internal memory clock Enable Pin |
| WE[1∶0] | Output | Internal memory is write enable signal |
| RAS[1∶0] | Output | The memory line address signal |
| CAS[1∶0] | Output | The internal memory column address is selected signal |
| DQM[3∶0] | Output | Internal memory input shielding/output enable signal line |
| AD[31∶0] | I/O | Data/address wire |
| SEL[2∶0] | Output | The chip selection signal line |
| CLK | Output | Clock cable |
| RESET | Output | The systematic reset signal line |
| WE | Output | Write the enable signal line |
| OE | Output | Output enable signal line |
| USB_INTERFACE | I/O | Describe |
| USB_DM | Output | The negative polarity data wire |
| USB_DP | Output | The positive polarity data wire |
| USB_PWR | Output | The USB device power supply |
| USB_OVRCUR | Input | Overflow the detectable signal line |
What Fig. 5 provided is the structural representation of module card among Fig. 4; Described module card comprises USB chip for driving and the hard disk that is attached thereto.Described USB chip for driving directly is connected with the modularization digital TV set-top box by USB interface, and described hard disk is used to deposit storage digital television program stream and other data messages, thereby realizes the digital television program recording function.
The software module schematic diagram of modularization digital TV set-top box of the present invention as shown in Figure 6, the present invention is divided into two parts with software: a part is to exist in the primary set-top box and the direct basic service software of operation; Another part is to exist in the module card, calls in the enhancing business software that moves in the internal memory during operation again, just needs software interface during this two parts software coordinated operation.
In the present invention, as shown in Figure 7, the redirect by program command during calling between two software realizes.In the basic service software of primary set-top box, provide an interface interchange function for strengthening business software, described interface interchange function by to the insertion of module card and the identification of extracting from module card read the address that strengthens business software and two parameters of storage size (address, size); In system, register address and the storage size that strengthens business software then; Jump to the space of enhancing business software to move this software by program command again.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (12)
1, a kind of modular digital TV set-top box comprises primary set-top box, it is characterized in that: also comprise a module card at least; Described module card comprises USB chip for driving and the hard disk that is attached thereto; Each described module card is connected with described primary set-top box respectively by device bus, rambus.
2, modular digital TV set-top box according to claim 1 is characterized in that: described device bus adopts usb bus, and described rambus adopts the sdram interface bus.
3, modular digital TV set-top box according to claim 1 and 2 is characterized in that: described device bus is connected with each equipment of described module card respectively, and described rambus is connected with the external memory device of described module card.
4, modular digital TV set-top box according to claim 1 is characterized in that: in the described primary set-top box, comprise the primary set-top box software module, be used to carry out the basic service of primary set-top box.
5, modular digital TV set-top box according to claim 1 is characterized in that: comprise the module card software module in the described module card, it is professional to be used for carrying out enhancing.
6, modular digital TV set-top box according to claim 4 is characterized in that: the primary set-top box software module also comprises an interface interchange function, is used for being connected between primary set-top box software module and the module card software module.
7, modular digital TV set-top box according to claim 1 and 2 is characterized in that: the interface of described rambus meets the description of following table:
The rambus interface I/O Describe
SDRAM_DATA[31..0] I/O The internal storage data bus
SDRAM_ADD[15..0] Output Memory bus address
HSCKB Output The internal memory clock line
CKE Output Internal memory clock Enable Pin
WE[1∶0] Output Internal memory is write enable signal
RAS[1∶0] Output The memory line address signal
CAS[1∶0] Output The internal memory column address is selected signal
DQM[3∶0] Output Internal memory input shielding/output enable signal line
AD[31∶0] I/O Data/address wire
SEL[2∶0] Output The chip selection signal line
CLK Output Clock cable
RESET Output The systematic reset signal line
WE Output Write the enable signal line
OE Output Output enable signal line
8, modular digital TV set-top box according to claim 1 and 2 is characterized in that: the interface of described device bus meets the description of following table:
USB_INTERFACE I/O Describe
USB_DM Output The negative polarity data wire
USB_DP Output The positive polarity data wire
USB_PWR Output The USB device power supply
USB_OVRCUR Input Overflow the detectable signal line
9, a kind of method of primary set-top box identification module card is characterized in that, comprises the steps:
Step 1, primary set-top box is finished system initialization;
Step 2, by the physical interface of primary set-top box and module card, read the information that is solidificated on the module card, if read failure, change step 4; If read success, carry out next step;
Step 3, to the information that reads check and correction authentication, if authentication success then moves and strengthens business software on the module card, change step 5 then; If authentication is unsuccessful, then point out error message, carry out next step;
Step 4, directly move the basic service software of primary set-top box;
Step 5, end.
10, the method for primary set-top box identification module card according to claim 9, it is characterized in that, to the information that reads check and correction authentication, comprise in the described step 3 manufacturer, product type, software numbering, program space size, initial address and the checking that accesses to your password.
11, a kind of method of calling module card software, be included in the primary set-top box software module is set in the primary set-top box, the module card software module is set in module card, it is characterized in that: the interface interchange function is set in the primary set-top box software module, by the direct calling module card software of interface interchange function module, operation strengthens business software in internal memory.
12, the method for calling module card software according to claim 11, it is characterized in that: described interface interchange function by to the insertion of module card and the identification of extracting from module card read the address that strengthens business software and two parameters of storage size (address, size); In system, register address and the storage size that strengthens business software then; Jump to the space of enhancing business software to move this software by program command again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021568677A CN1509080A (en) | 2002-12-19 | 2002-12-19 | Modulized digital television set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021568677A CN1509080A (en) | 2002-12-19 | 2002-12-19 | Modulized digital television set top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1509080A true CN1509080A (en) | 2004-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021568677A Pending CN1509080A (en) | 2002-12-19 | 2002-12-19 | Modulized digital television set top box |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006108351A1 (en) * | 2005-04-14 | 2006-10-19 | Huawei Technologies Co., Ltd. | Method and apparatus for implementing software upgrade in the digital television receiving device |
| CN101778197A (en) * | 2010-01-25 | 2010-07-14 | 上海享云信息系统有限公司 | Set-top box extension system |
| CN101069422B (en) * | 2004-10-01 | 2011-03-30 | 辉达公司 | Device, system, and method for bridging a video signal to a high speed serial port |
| CN102523507A (en) * | 2011-12-29 | 2012-06-27 | 深圳市酷开网络科技有限公司 | Method and device for applying external equipment based on intelligent television system |
| CN102932615A (en) * | 2012-10-25 | 2013-02-13 | 3M中国有限公司 | Modular television system |
| CN102037725B (en) * | 2008-05-23 | 2013-11-20 | 诺瓦数位电视科技股份有限公司 | Digital television receiver |
| CN105516805A (en) * | 2016-01-14 | 2016-04-20 | 浪潮软件集团有限公司 | Method for starting APK based on external storage device and set top box |
| CN113556583A (en) * | 2021-07-19 | 2021-10-26 | 杭州国芯科技股份有限公司 | Set top box starting advertisement playing method |
-
2002
- 2002-12-19 CN CNA021568677A patent/CN1509080A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101069422B (en) * | 2004-10-01 | 2011-03-30 | 辉达公司 | Device, system, and method for bridging a video signal to a high speed serial port |
| WO2006108351A1 (en) * | 2005-04-14 | 2006-10-19 | Huawei Technologies Co., Ltd. | Method and apparatus for implementing software upgrade in the digital television receiving device |
| US8074212B2 (en) | 2005-04-14 | 2011-12-06 | Huawei Technologies Co., Ltd. | Method and apparatus for software upgrade in a digital television receiving device |
| CN102037725B (en) * | 2008-05-23 | 2013-11-20 | 诺瓦数位电视科技股份有限公司 | Digital television receiver |
| CN101778197A (en) * | 2010-01-25 | 2010-07-14 | 上海享云信息系统有限公司 | Set-top box extension system |
| CN102523507A (en) * | 2011-12-29 | 2012-06-27 | 深圳市酷开网络科技有限公司 | Method and device for applying external equipment based on intelligent television system |
| CN102932615A (en) * | 2012-10-25 | 2013-02-13 | 3M中国有限公司 | Modular television system |
| CN102932615B (en) * | 2012-10-25 | 2015-09-09 | 3M中国有限公司 | modular television system |
| CN105516805A (en) * | 2016-01-14 | 2016-04-20 | 浪潮软件集团有限公司 | Method for starting APK based on external storage device and set top box |
| CN113556583A (en) * | 2021-07-19 | 2021-10-26 | 杭州国芯科技股份有限公司 | Set top box starting advertisement playing method |
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