CN101489061A - Digital television receiver and expanded interface system thereof with peripheral unit - Google Patents
Digital television receiver and expanded interface system thereof with peripheral unit Download PDFInfo
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- CN101489061A CN101489061A CNA2009101050134A CN200910105013A CN101489061A CN 101489061 A CN101489061 A CN 101489061A CN A2009101050134 A CNA2009101050134 A CN A2009101050134A CN 200910105013 A CN200910105013 A CN 200910105013A CN 101489061 A CN101489061 A CN 101489061A
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Abstract
The invention discloses an extension interface system for a digital television receiver and connecting the digital television with a peripheral unit, wherein the extension interface system comprises: an extension interface; at least one function module connected to the extension interface as follow: an USB circuit module, an ethernet network circuit module, an infrared communication module and a GPRS circuit module. The digital television receiver at least configures the following: a power supply module for providing a power for the extension interface, and a control module for providing control for the extension interface. The invention implements the communication of the digital television receiver and different interface type peripheral unit, and is useful for developing value-added service of the digital television receiver and satisfying the user omnibearing use demand.
Description
Technical field
The present invention relates to the Digital Television treatment technology, the expansion interface system that especially relates to a kind of digital television receiver and be connected with peripheral unit.
Background technology
Along with the fast development of Digital Television, countries in the world start the integral body conversion of simulated television to Digital Television comprehensively.From China's Digital Television development process table, digital television, digital receiver have promptly been come into huge numbers of families, and common people thirst for taking a fancy to Digital Television, and the each place broadcasting and TV have the translation that has started Digital Television with disposing.
In addition, along with each place broadcasting and TV system to the transformation of TV network and the popularization of added value service, because the restriction of digital television receiver and PCI causes using the user of basic model numeral television receiver just can not enjoy the Digital Television comprehensive service.
Therefore, how to integrate the interface function of digital television receiver, make digital television receiver can with the peripheral communication of different interface type, become one of technical barrier that current continuation solves.
Summary of the invention
The expansion interface system that the present invention proposes a kind of digital television receiver and is connected with peripheral unit, by designing a kind of expansion interface of standard, can be plugged in this expansion interface with the functional module that the various interface type communicates, thus make digital television receiver can with the peripheral communication of different interface type.
For solving technical problem of the present invention, the present invention discloses a kind of expansion interface system that digital television receiver is connected with peripheral unit that is used for, and this expansion interface system comprises:
Expansion interface;
Be connected following one of them functional module of described expansion interface:
Be used to handle the USB circuit module that digital television receiver communicates by USB interface and peripheral unit;
Be used to handle the ethernet circuit module that digital television receiver communicates by Ethernet and peripheral unit;
Be used to handle the infrared communication module that digital television receiver communicates by infrared interface and peripheral unit;
Be used to handle the GPRS circuit module that digital television receiver communicates by GPRS interface and peripheral unit;
Wherein, digital television receiver is answered corresponding configuration at least: for described expansion interface provides the power module of power supply and the control module that described expansion interface is provided control.
Preferably, described expansion interface comprises:
The power interface that connects described power module is used to described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module that operating voltage is provided;
Asynchronous communication interface is used to realize that described control module and described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module communicate;
The interrupt interface that connects described control module;
Data transmission interface is used to realize that described control module and described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module carry out exchanges data.
Preferably, described control module is discerned the peripheral unit that inserts by described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module respectively by chip selection signal.
In addition, the present invention also discloses a kind of digital television receiver, comprising: power module; Control module; The tuner of received television signal; TV signal is carried out the demodulation module of demodulation process; Decoder module; Video processing and output module; Audio Processing and output module; Be used for the expansion interface system that digital television receiver is connected with peripheral unit, this expansion interface system comprises:
Expansion interface, it provides power supply by described power module, and provides control by described control module;
Be connected following one of them functional module of described expansion interface:
Be used to handle the USB circuit module that digital television receiver communicates by USB interface and peripheral unit;
Be used to handle the ethernet circuit module that digital television receiver communicates by Ethernet and peripheral unit;
Be used to handle the infrared communication module that digital television receiver communicates by infrared interface and peripheral unit;
Be used to handle the GPRS circuit module that digital television receiver communicates by GPRS interface and peripheral unit.
Compared with prior art, the present invention has following beneficial effect:
The present invention is by the expansion interface of a kind of standard of design, can be plugged in this expansion interface with the functional module that the various interface type communicates, realized digital television receiver can with the peripheral communication of different interface type, help developing the value-added service of digital television receiver and satisfy the omnibearing user demand of user; In addition, simple in structure, the easy advantage of realization that the present invention has can be widely used among various types of digital television receivers.
Description of drawings
Fig. 1 is a system schematic of the present invention;
Fig. 2 is the schematic diagram of expansion interface among Fig. 1.
Embodiment
As shown in Figure 1, digital television receiver 1 comprises: the tuner (being commonly called as tuner) 11 of received television signal (be the wireless television signal of radio frequency, or be the ground cable TV signal) will be tuned as intermediate-freuqncy signal output for the TV signal of high frequency; Intermediate-freuqncy signal is carried out demodulation process by demodulation module 12, obtains the packet (being generally transport stream TS) of TV programme; Carry out decoding processing by 14 pairs of packets of control module 13 control decoder modules, obtain voice data and video data into digital signal; And respectively by Audio Processing and output module 15 and Video processing and output module 16 respectively with the audio component signal and the video component signal of TV programme.In addition, also be connected with memory module 17 on the control module 13, memory module 17 not only comprises the internal memory of digital television receiver 1, more comprises the electrically-erasable memory that is used for storage data when digital television receiver 1 realizes that performance recording, individual pictures preservation etc. are used, such as hard disk.
The innovative point of key of the present invention is, sets up an expansion interface system 19 in the inside of digital television receiver 1, and it is by power module 18 power supplies, and the control of controlled module 13.Expansion interface system 19 is based on the expansion interface 191 of a kind of standard of design, can be plugged in this expansion interface with the functional module that the various interface type communicates, realize that digital television receiver can communicate with the peripheral unit 2 of different interface type.
As shown in Figure 1, on expansion interface 191, pegged graft and be used to handle the USB circuit module that digital television receiver 1 communicates by USB interface and peripheral unit 2; Be used to handle the ethernet circuit module that digital television receiver 1 communicates by Ethernet and peripheral unit 2; Be used to handle the infrared communication module that digital television receiver 1 communicates by infrared interface and peripheral unit 2; Be used to handle the GPRS circuit module that digital television receiver 1 communicates by GPRS interface and peripheral unit 2.Certainly, having comprised usb communication circuit or USB drive circuit in the USB circuit module, and the USB interface that is connected with peripheral unit 2.
In addition, digital television receiver 1 can be according to customization or actual needs, and the functional module of optionally pegging graft on expansion interface 191 is to realize the communication function corresponding with functional module.
In conjunction with shown in Figure 2, electrical block diagram for 191 1 examples of expansion interface, it is the connector of one 28 pin (PIN), wherein, PIN1 to PIN20 pin and digital television receiver carry out data communication, these pins can be carried out pre-definedly, make it to be connected, become the bus interface that peripheral unit 2 connects with described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module; PIN21 and PIN22 are respectively interrupt interface and restart interface; PIN23 and PIN24 are asynchronous communication interfaces, this interface has communications industry function agreement, these two pins are mainly used in control module 13 and communicate with them and each functional modules such as described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module, thereby realization digital television receiver 1 can be communicated by letter with peripheral unit 2 by expansion interface 191; PIN25 to PIN28 is the pin on power supply and ground (GND) in addition.
In addition, be plugged in the type of the peripheral unit 2 on the expansion interface system 19 for ease of control module 13 identification, thus can PIN1 to the PIN20 pin selection of as shown in Figure 2 expansion interface 191 wherein one or more pin definitions be chip selection signal; Such as, selecting 2 pin definitions at PIN1 to PIN20 pin is chip selection signal, 2 pin combinations have 4 kinds of status signals, every kind of status signal correspond respectively to peripheral unit 2 electrically connect USB circuit modules, ethernet circuit module, infrared communication module or GPRS circuit module one of them the time state, therefore, make control module 13 can read the state of chip selection signal, thereby judge the interface type of concrete peripheral unit 2 by the interrupt interface of PIN21.
Perhaps, in the time of on peripheral unit 2 is plugged in expansion interface system 19, control module 13 can also eject the option of external equipment type by the OSD menu, allow the user select corresponding to connection peripheral unit 2 correct interface type, then, start the functional module (being USB circuit module, ethernet circuit module, infrared communication module or GPRS circuit module) of supporting the corresponding interface type by control module 13 by expansion interface 191 controls, and carry out interactive communication with peripheral unit 2.
Therefore, by expansion interface of the present invention system, the user can experience more supplementary service, only the peripheral unit of supporting interface type need be plugged on the expansion interface system, by OSD menu or application interface, enter into relevant function items then, comprise electron album, NVOD and GPRS service, just can browse the picture of various forms by expansion interface, enjoy MP3, the program source of the various excellences of program request, enjoyment GPRS communication service.In addition, for the developer or manufacturer of digital television receiver, if need allow the new function of digital television receiver exploitation, support new interface type, as long as just corresponding functional module is plugged on the expansion interface, promptly can carry out upgrade maintenance to digital television receiver fast, make digital television receiver obtain new function.
To sum up, the present invention is by the expansion interface of a kind of standard of design, can be plugged in this expansion interface with the functional module that the various interface type communicates, realized digital television receiver can with the peripheral communication of different interface type, help developing the value-added service of digital television receiver and satisfy the omnibearing user demand of user; In addition, simple in structure, the easy advantage of realization that the present invention has can be widely used among various types of digital television receivers.
Claims (6)
1, a kind ofly be used for the expansion interface system that digital television receiver is connected with peripheral unit, it is characterized in that this expansion interface system comprises:
Expansion interface;
Be connected following one of them functional module of described expansion interface:
Be used to handle the USB circuit module that digital television receiver communicates by USB interface and peripheral unit;
Be used to handle the ethernet circuit module that digital television receiver communicates by Ethernet and peripheral unit;
Be used to handle the infrared communication module that digital television receiver communicates by infrared interface and peripheral unit;
Be used to handle the GPRS circuit module that digital television receiver communicates by GPRS interface and peripheral unit;
Wherein, digital television receiver is answered corresponding configuration at least: for described expansion interface provides the power module of power supply and the control module that described expansion interface is provided control.
2, be used for the expansion interface system that digital television receiver is connected with peripheral unit according to claim 1 is described, it is characterized in that described expansion interface comprises:
The power interface that connects described power module is used to described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module that operating voltage is provided;
Asynchronous communication interface is used to realize that described control module and described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module communicate;
The interrupt interface that connects described control module;
Data transmission interface is used to realize that described control module and described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module carry out exchanges data.
3, be used for the expansion interface system that digital television receiver is connected with peripheral unit according to claim 1 is described, it is characterized in that the peripheral unit that described control module inserts by described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module respectively by chip selection signal identification.
4, a kind of digital television receiver comprises: power module; Control module; The tuner of received television signal; TV signal is carried out the demodulation module of demodulation process; Decoder module; Video processing and output module; Audio Processing and output module; It is characterized in that, also comprise: be used for the expansion interface system that digital television receiver is connected with peripheral unit, this expansion interface system comprises:
Expansion interface, it provides power supply by described power module, and provides control by described control module;
Be connected following one of them functional module of described expansion interface:
Be used to handle the USB circuit module that digital television receiver communicates by USB interface and peripheral unit;
Be used to handle the ethernet circuit module that digital television receiver communicates by Ethernet and peripheral unit;
Be used to handle the infrared communication module that digital television receiver communicates by infrared interface and peripheral unit;
Be used to handle the GPRS circuit module that digital television receiver communicates by GPRS interface and peripheral unit.
According to the described digital television receiver of claim 4, it is characterized in that 5, described expansion interface comprises:
The power interface that connects described power module is used to described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module that operating voltage is provided;
Asynchronous communication interface is used to realize that described control module and described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module communicate;
The interrupt interface that connects described control module;
Data transmission interface is used to realize that described control module and described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module carry out exchanges data.
6, according to the described digital television receiver of claim 4, it is characterized in that the peripheral unit that described control module inserts by described USB circuit module, ethernet circuit module, infrared communication module and GPRS circuit module respectively by chip selection signal identification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101050134A CN101489061A (en) | 2009-01-13 | 2009-01-13 | Digital television receiver and expanded interface system thereof with peripheral unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101050134A CN101489061A (en) | 2009-01-13 | 2009-01-13 | Digital television receiver and expanded interface system thereof with peripheral unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101489061A true CN101489061A (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101050134A Pending CN101489061A (en) | 2009-01-13 | 2009-01-13 | Digital television receiver and expanded interface system thereof with peripheral unit |
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| Country | Link |
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| CN (1) | CN101489061A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103338354A (en) * | 2013-06-17 | 2013-10-02 | 青岛海信电子设备有限公司 | Small-sized video encoding equipment, and video capture, coding and transmission system |
| CN104661074A (en) * | 2014-12-16 | 2015-05-27 | 中山恩普吉数码科技有限公司 | Intelligent television system |
| CN105791936A (en) * | 2014-12-24 | 2016-07-20 | 北京融合视讯科技有限公司 | Player implementation method and device and player |
-
2009
- 2009-01-13 CN CNA2009101050134A patent/CN101489061A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103338354A (en) * | 2013-06-17 | 2013-10-02 | 青岛海信电子设备有限公司 | Small-sized video encoding equipment, and video capture, coding and transmission system |
| CN104661074A (en) * | 2014-12-16 | 2015-05-27 | 中山恩普吉数码科技有限公司 | Intelligent television system |
| CN105791936A (en) * | 2014-12-24 | 2016-07-20 | 北京融合视讯科技有限公司 | Player implementation method and device and player |
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Open date: 20090722 |