CN201039327Y - A digital mobile TV - Google Patents
A digital mobile TV Download PDFInfo
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- CN201039327Y CN201039327Y CNU2007201188920U CN200720118892U CN201039327Y CN 201039327 Y CN201039327 Y CN 201039327Y CN U2007201188920 U CNU2007201188920 U CN U2007201188920U CN 200720118892 U CN200720118892 U CN 200720118892U CN 201039327 Y CN201039327 Y CN 201039327Y
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Abstract
The utility model provides a digital mobile television, which comprises a tuning module, an AD conversion module, a DBM-TH decoding module, a microcontroller unit, a transferring code stream decoding module, and a display screen. A received signal is transferred to the transferring code stream through tuning, module conversion, DMB-TH channel decoding, and then is outputted to the display screen after being transferred and processed by the microcontroller unit and the transferring code stream decoding module. The utility model still comprises a judging module, a switching module, a video output port and an audio output port; the video output port is used for receiving an audio signal gained by decoding of the transferring code stream decoding module and then the audio signal is output to an externally connected sound player; the judging module is used for judging whether to externally connect the display or the sound layer; if yes, the switching module is started; the switching module is used for switching the signal to the external display or the sound player.
Description
Technical field
The utility model relates to the digital moving-tv field, relates in particular to a kind of digital moving-tv that comprises functions such as set-top box, DPF and multimedia.
Background technology
Digital moving-tv, promptly hand held television is also referred to as terrestrial DTV, is support with the digital technology, plays and received television program by the mode that wireless digital signal emission, ground digital receive.Its maximum characteristics are when being in mobile status, can keep the stable and clear of TV signal, make spectators can be in mobile status TV reception easily.
Promulgation and enforcement along with national digital broadcast television signal standard DMB-TH, the digital moving-tv that meets the DMB-TH standard on the present market, its function singleness, it all is the television set that simple receiving digital signals is play, can not realize MP3, MP4 and PMP (Portable Media Player, portable electronic device) etc. the playing function of file can not be used as set-top box, perhaps uses as digital products such as DPFs.
And, hand held television based on the DMB-TH of national standard, the processing mode of its signal processing mode and traditional tv is different, therefore in the apolegamy of multiple hardwares, exist than big-difference, can not use in the simple superposition of traditional tv product by prior art, on hand held television, to realize multiple multimedia function.
Therefore, there is defective in prior art, needs to improve.
The utility model content
The purpose of this utility model is to provide a kind of digital moving-tv, can realize functions such as multimedia and mobile storage on the basis that meets the DMB-TH standard.
The technical solution of the utility model is as follows:
A kind of digital moving-tv, comprise tuner module, AD modular converter, DMB-TH decoder module, micro controller unit, transmission code stream decoder module, display screen, received signal obtains transmission code stream after through tuning, analog-to-digital conversion, DMB-TH channel-decoding, is called by micro controller unit then and outputs to display screen after the transmission code stream decoder module is handled; It also comprises judge module, handover module, video-out port and audio output port; Wherein, described video-out port is used to receive the vision signal that described transmission code stream decoder module decoding obtains, and outputs to external display; Described audio output port is used to receive the audio signal that described transmission code stream decoder module decoding obtains, and outputs to external Audio Players; Described judge module is used to judge whether external display or Audio Players, is then to enable described handover module; Described handover module is used for signal is switched to external display or Audio Players.
Described digital moving-tv wherein, also comprises the memory module that is used for media information, and described micro controller unit calls described media information, plays after decoding by described transmission code stream decoder module.
Described digital moving-tv wherein, also comprises the USB input interface that is used for the circumscribed USB memory, and the control module that is used to control the USB input function; The user is by described control module, and the data of circumscribed USB memory are transferred to described memory module from the USB input interface.
Described digital moving-tv, wherein, described digital moving-tv is play-overed the media information of described circumscribed USB memory by described USB functional control module.
Described digital moving-tv, wherein, described USB input interface comprises main frame USB input interface and mobile USB input interface.
Described digital moving-tv wherein, also comprises playing module, and it is used to call described media information, outputs to display screen through micro controller unit and decoding module invokes and after handling, and realizes and control multimedia playing function.
Described digital moving-tv wherein, also comprises the digital photo frame function module, and it is used to call described media information, outputs to display screen through micro controller unit and decoding module invokes and after handling, and realizes that the data of DPF show and playing function.Can also comprise playing module, it is used to call described media information, outputs to display screen through micro controller unit and decoding module invokes and after handling, and realizes and control multimedia playing function.
Adopt such scheme, the utility model is on the basis that meets the DMB-TH standard, the digital moving-tv of functions such as having multimedia and mobile storage is provided, and realized multiple multimedia function, for the user provides the modernized digital moving-tv of functions such as having real-time video signal, music, film, mobile storage, and can be used as the wireless set-top box use.
Description of drawings
Fig. 1 is the signal flow diagram of an embodiment of the present utility model;
Fig. 2 is the principle schematic of another embodiment of the present utility model.
Embodiment
Below preferred embodiment of the present utility model is described in detail.
The utility model provides a kind of digital moving-tv, as shown in Figure 1, comprise tuner module, AD modular converter, DMB-TH decoder module, micro controller unit, transmission code stream decoder module, display screen, receive from antenna that the signal obtain is tuning through tuner module (Tuner), the AD modular converter carries out analog-to-digital conversion, the DMB-TH decoder module carries out obtaining transmission code stream (TS behind the DMB-TH channel-decoding, Transport Stream), call by micro controller unit then and output to display screen after the transmission code stream decoder module is handled; Certainly, micro controller unit and transmission code stream decoder module can be integrated in the decoding chip; It also comprises judge module, handover module, video-out port and audio output port; Wherein, described video-out port is used to receive the vision signal that described transmission code stream decoder module decoding obtains, and outputs to external display; Described audio output port is used to receive the audio signal that described transmission code stream decoder module decoding obtains, and outputs to external Audio Players; Described judge module is used to judge whether external display or Audio Players, is then to enable described handover module; Described handover module is used for signal is switched to external display or Audio Players.
Described digital moving-tv can also comprise serial line interface, and it includes but not limited to RS-232, RS-232C, RS-422 or RS-449 interface etc.
Wherein, tuner module and AD modular converter can be wholely set, also tuner module, AD modular converter and DMB-TH decoder module can be wholely set; The utility model is not done additional limits to this.
Described micro controller unit can be MCU (microchip) or CPU (central processing unit); The utility model is not done additional limits to this.
Described transmission code stream decoder module can be to adopt a MPEG2 decoding chip to finish audio decoder and video decode function.For example, the described MPEG2 decoding chip AML7218 chip that can be Amlogic company.
Described digital moving-tv can also comprise the memory module that is used for media information, and described micro controller unit calls described media information, plays after decoding by described transmission code stream decoder module.Like this, digital moving-tv just can be play-overed the media information that is stored in advance in the memory module.
On this basis, described digital moving-tv can also comprise the USB input interface that is used for the circumscribed USB memory, and the control module that is used to control the USB input function; The user is by described control module, and the data of circumscribed USB memory are transferred to described memory module from the USB input interface; Perhaps also can be that described digital moving-tv passes through described USB functional control module, play-over the media information of described circumscribed USB memory; Also can be the media information of play-overing the circumscribed USB memory by user's control figure mobile TV, perhaps play the media information of the circumscribed USB memory that is transferred to described memory module.Can also use as USB flash disk, as the storage and the exchange tool of data, and other function that realizes USB flash disk.User's control input signals can adopt a control input module to realize that this is a prior art, does not give unnecessary details at this.
Wherein, described USB input interface comprises main frame USB input interface and moves (OTG, On TheGo) USB input interface.Therefore described digital moving-tv can read the function of external USB flash disk file by the USB interface of two kinds of different-formats with realization.
Described digital moving-tv, it also comprises playing module.Described playing module is used to call described media information, outputs to display screen through micro controller unit and decoding module invokes and after handling, and realizes and controls multimedia playing function, comprises files such as playing MP3 and MP4.
Described digital moving-tv, it also comprises the digital photo frame function module, it is used to call described media information, outputs to display screen through micro controller unit and decoding module invokes and after handling, and realizes that the data of DPF show and playing function.On this basis, can also comprise playing module, it is used to call described media information, outputs to display screen through micro controller unit and decoding module invokes and after handling, and realizes and control multimedia playing function.
Below enumerate a concrete example digital moving-tv described in the utility model is elaborated, specifically as shown in Figure 2.
The TUNER part can adopt the MAX3580 of Maxim company, and its volume is little, low in energy consumption, peripheral circuit is simple, by the antenna received RF signal.After radiofrequency signal is demodulated to the I/Q intermediate-freuqncy signal, be admitted to the digitlization of AD module.At this moment, be system optimization, the AD module adopts the MAX1183 of Maxim company.
DMB-T channel-decoding part can adopt the LGS8913 of the Ling Xun Technology that puts it at present.Under the unified control of CPU, LGS8913 coordinates front end MAX3580 identification and lock-related channel, receive digitized I Q signal, export the decoding chip of continual and steady MPEG2 code stream to the information source of rear end.
Decoding chip can be selected AML7218 powerful and Hannants company commonly used in portable set for use.As professional mpeg decode chip, 32 host CPUs of the integrated high speed of this IC can satisfy the usefulness of system's s operation control fully.Its abundant I/O port flexibly is directly used in digital video signal output and usb data transmission, and does not need the expanding peripherals chip.In addition, cooperate FLASH, can serve as movable storage device with data-handling capacity with large storage capacity.
Main application of the present utility model is that its main modular comprises as the Digital Television of the wireless digital broadcasting of a support GB DMB-TH: signal receiving module, AD modular converter, channel decoding module, signal processing module, video display module, audio processing modules; Signal receiving module is to be finished by antenna and TUNER (for example MAX3580), and after handling through TUNER, signal enters AD (chip that the utility model adopts is MAX1183) conversion work.Become after the digital signal on channel decoding chip (for example LGS8913) and carry out channel-decoding and handle, the double-basis band IQ signal of TUNER output enters the LGS8913 chip and handles the parallel MPGE2 bitstream of back output; Bitstream after disposing enters audio frequency and video process chip (for example AML7218) and carries out the audio frequency and video processing, directly is transferred to after vision signal disposes to play on the digital lcd display screen to show.Enter the DA conversion chip after Audio Signal Processing finishes and convert analog signal to and promote loudspeaker, play out sound to power amplifier.MP3 playing function and MP4 playing function: read MP3, the MP4 file of internal memory by the AML7218 chip, for example adopt the memory of 2G.This part mainly is to read the function that file is play because Chip Microcomputer A ML7218 has, and in addition, MP3, MP4 file are all play by software and realized playing function.USB flash disk playing function: mainly be the file that reads external USB flash disk by USB interface, read the function of external USB flash disk file by the USB interface of two kinds of different-formats of two kinds of USB interface (HOST, OTG) with realization.The DTV-STB function: this function mainly is with the display terminal that should can support the USB interface Presentation Function in external display system.Be connected to external display unit by signal receiving module, AD modular converter, channel decoding module, signal processing module, video-out port, be implemented in and play digital radio broadcast and TV programme on the large-screen.Digital photo frame function: this function mainly is to realize playing the function of digital photo by software, and main modular is USB interface, video processing module, digital display screen.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (8)
1. digital moving-tv, comprise tuner module, AD modular converter, DMB-TH decoder module, micro controller unit, transmission code stream decoder module, display screen, received signal obtains transmission code stream after through tuning, analog-to-digital conversion, DMB-TH channel-decoding, is called by micro controller unit then and outputs to display screen after the transmission code stream decoder module is handled; It is characterized in that, also comprise judge module, handover module, video-out port and audio output port;
Described video-out port is used to receive the vision signal that described transmission code stream decoder module decoding obtains, and outputs to external display;
Described audio output port is used to receive the audio signal that described transmission code stream decoder module decoding obtains, and outputs to external Audio Players;
Described judge module is used to judge whether external display or Audio Players, is then to enable described handover module;
Described handover module is used for signal is switched to external display or Audio Players.
2. digital moving-tv according to claim 1 is characterized in that, also comprises the memory module that is used for media information, and described micro controller unit calls described media information, plays after decoding by described transmission code stream decoder module.
3. digital moving-tv according to claim 2 is characterized in that, also comprises the USB input interface that is used for the circumscribed USB memory, and the control module that is used to control the USB input function; The user is by described control module, and the data of circumscribed USB memory are transferred to described memory module from the USB input interface.
4. digital moving-tv according to claim 3 is characterized in that, described digital moving-tv is play-overed the media information of described circumscribed USB memory also by described USB functional control module.
5. digital moving-tv according to claim 2 is characterized in that, described USB input interface comprises main frame USB input interface and mobile USB input interface.
6. according to the arbitrary described digital moving-tv of claim 2 to 5, it is characterized in that also comprise playing module, it is used to call described media information, output to display screen through micro controller unit and decoding module invokes and after handling, realize and control multimedia playing function.
7. according to the arbitrary described digital moving-tv of claim 2 to 5, it is characterized in that, also comprise the digital photo frame function module, it is used to call described media information, output to display screen through micro controller unit and decoding module invokes and after handling, realize that the data of DPF show and playing function.
8. digital moving-tv according to claim 7, it is characterized in that also comprise playing module, it is used to call described media information, output to display screen through micro controller unit and decoding module invokes and after handling, realize and control multimedia playing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201188920U CN201039327Y (en) | 2007-03-08 | 2007-03-08 | A digital mobile TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201188920U CN201039327Y (en) | 2007-03-08 | 2007-03-08 | A digital mobile TV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201039327Y true CN201039327Y (en) | 2008-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201188920U Expired - Fee Related CN201039327Y (en) | 2007-03-08 | 2007-03-08 | A digital mobile TV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201039327Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873369A (en) * | 2009-04-24 | 2010-10-27 | 环达电脑(上海)有限公司 | External screen sensing system and method thereof |
| CN103327396A (en) * | 2013-06-17 | 2013-09-25 | 天津云视科技发展有限公司 | Device storing output content of TV set top box onto USB storage device |
| CN103702163A (en) * | 2013-12-27 | 2014-04-02 | 乐视致新电子科技（天津）有限公司 | Method and system of dynamically outputting audio file and television |
| CN106210823A (en) * | 2016-08-24 | 2016-12-07 | 广东王牌网络科技有限公司 | A kind of numeric display unit for decoding |
| CN113873394A (en) * | 2021-10-25 | 2021-12-31 | 惠州视维新技术有限公司 | Television and audio control method |
-
2007
- 2007-03-08 CN CNU2007201188920U patent/CN201039327Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873369A (en) * | 2009-04-24 | 2010-10-27 | 环达电脑(上海)有限公司 | External screen sensing system and method thereof |
| CN103327396A (en) * | 2013-06-17 | 2013-09-25 | 天津云视科技发展有限公司 | Device storing output content of TV set top box onto USB storage device |
| CN103702163A (en) * | 2013-12-27 | 2014-04-02 | 乐视致新电子科技（天津）有限公司 | Method and system of dynamically outputting audio file and television |
| CN106210823A (en) * | 2016-08-24 | 2016-12-07 | 广东王牌网络科技有限公司 | A kind of numeric display unit for decoding |
| CN113873394A (en) * | 2021-10-25 | 2021-12-31 | 惠州视维新技术有限公司 | Television and audio control method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20100308 |