CN201266976Y - Portable multimedia player with digital television function - Google Patents
Portable multimedia player with digital television function Download PDFInfo
- Publication number
- CN201266976Y CN201266976Y CNU2009201292302U CN200920129230U CN201266976Y CN 201266976 Y CN201266976 Y CN 201266976Y CN U2009201292302 U CNU2009201292302 U CN U2009201292302U CN 200920129230 U CN200920129230 U CN 200920129230U CN 201266976 Y CN201266976 Y CN 201266976Y
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- media player
- portable media
- digital television
- radio
- application processor
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Abstract
The utility model relates to a portable multimedia player with digital television function, comprising a radio-frequency tuner which receives digital television signals by an antenna, a baseband modem connected with the radio-frequency tuner, and an application processor connected with the baseband modem. The development of the media player with the CMMB digital television function has great advantages as follows: on the one hand, the player has multimedia playing function; and on the other hand, distinct digital television programs can be watched at any time, therefore, the multimedia player has great market potential.
Description
Technical field
The utility model relates to multimedia player, more particularly, relates to a kind of portable media player with digital television function.
Background technology
CMMB is the abbreviation of English China Mobile Multimedia Broadcasting (China Mobile multimedia broadcasting TV), and it is the system of first cover of domestic independent research towards mobile phone, PDA, MP4, digital camera, the multiple portable terminal of notebook computer.In October, 2006, SARFT(The State Administration of Radio and Television) has issued the CMMB industry standard.Digital Television has incomparable advantage than simulated television, and digital TV picture is more clear, and a large amount of video display, graph text information, interactive programs can be provided, and the user can select to watch personalized content.Digital Television is the inexorable trend of technical development, will close simulated television to China in 2015 comprehensively, enters the Digital Television epoch fully.Based on above some, the multimedia player of research and development bands CMMB function has advantage very much, has multi-media player function on the one hand, can also watch digital television program clearly at any time on the one hand.
The utility model content
The technical problems to be solved in the utility model is, do not possess the defective of CMMB digital television function at the above-mentioned multimedia player of prior art, and a kind of portable media player with digital television function is provided.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of portable media player with digital television function, described portable media player comprises the radio-frequency tuner by the antenna receiving digital television signal, the base band demodulator that is connected with described radio-frequency tuner and the application processor that is connected with described base band demodulator.
In portable media player described in the utility model, described portable media player also comprises the audio decoder module that is connected with described application processor.
In portable media player described in the utility model, described portable media player also comprises the LCD screen that is connected with described application processor.
In portable media player described in the utility model, described portable media player also comprises the input unit that is connected with described application processor.
In portable media player described in the utility model, described portable media player also comprises the storage device that is connected with described application processor.
In portable media player described in the utility model, described storage device comprises flash memory, safe digital card and the Synchronous Dynamic Random Access Memory that is connected with described application processor respectively.
In portable media player described in the utility model, described portable media player also comprises the Serial Peripheral Interface (SPI) quickflashing that is connected with described base band demodulator.
In portable media player described in the utility model, described radio-frequency tuner comprises VHF/UHF binary channels radio frequency input frequency band, and this radio-frequency tuner is made up of low noise amplifier, radio frequency programmable gain amplifier, I/Q down-conversion mixer, low pass filter, base band variable gain amplifier, voltage controlled oscillator and decimal Fractional-N frequency phase-locked loop that bandwidth is adjustable.
In portable media player described in the utility model, described radio-frequency tuner comprises the humorous chip ADMTV102 of digital television signal, described base band demodulator comprises the digital television chip TP3001B that is connected with the humorous chip ADMTV102 of digital television signal, and described application processor comprises the main control chip ROCKCHIPS2706 that is connected with digital television chip TP3001B.
Implement the portable media player of the utility model band digital television function, has following beneficial effect: by radio-frequency tuner and the base band demodulator that can handle digital television signal is set, when making multimedia player have multi-media player function, can also watch digital television program clearly at any time.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the logic diagram of portable media player of the present utility model;
Fig. 2 is the circuit theory diagrams of portable media player of the present utility model.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be understood that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, there is shown the multimedia player of the utility model band CMMB digital television function.Shown multimedia player comprises by the radio-frequency tuner of antenna receiving digital television signal, the base band demodulator that is connected with radio-frequency tuner and the application processor that is connected with base band demodulator.Radio-frequency tuner and base band demodulator are formed the CMMB module, the antenna receiving digital television signal of CMMB module, undertaken inputing to base band demodulator after the I/Q modulation by radio-frequency tuner, behind the signal of base band demodulator demodulation input TS stream (transmission code stream) is delivered to application processor and handle the back broadcast.
As can be seen from Figure 1, multimedia player of the present utility model also comprises being connected with application processor and is used for audio decoder module that audio signal is decoded, and for example the audio decoder module can be play the audio frequency (as MP3, WMF form) of the storage back of decoding.In addition, this multimedia player also comprises the storage device that is connected with application processor, and this storage device comprises flash memory (FLASH), safe digital card (SDCARD) and the Synchronous Dynamic Random Access Memory (SDRAM) that is connected with application processor respectively.Portable media player of the present utility model also comprises the Serial Peripheral Interface (SPI) quickflashing (SPIFLASH) that is connected with base band demodulator.
In addition, portable media player of the present utility model also comprises the color LCD screen (LCD) that is connected with application processor, will export LCD screen to and play after application processor is to digital processing television signals.This multimedia player also comprises the input unit that is connected with application processor, and the device of input instruction just is as button or touch-screen etc.The utility model can be listened to by inserting earphone, but also boombox.And USB interface or USB input technology all are this area technology commonly used, do not repeat them here.
The multimedia player that has the simulated television function has obtained the warm response in market, and the multimedia player that therefore can predict band CMMB digital television function has bigger market prospects certainly.Main cause is as follows: 1, the signal of simulated television is easier to be disturbed, and definition is subjected to aerial angle, it is bigger to receive the region signal intensity effect, and Digital Television does not have this type of problem, and definition can reach the DVD effect, and sound quality can reach the CD effect; 2, simulated television can only be play singlely, and what the user can only be passive watches that Digital Television can realize interaction, the program that the user can the program request personalization.
Fig. 2 is the circuit theory diagrams of portable media player of the present utility model.Application processor is not shown among Fig. 2, and application processor of the present utility model is the ROCKCHIPS2706 main control chip this employing.Wherein, radio-frequency tuner comprises the humorous chip ADMTV102 of digital television signal, base band demodulator comprises the digital television chip TP3001B that is connected with the humorous chip ADMTV102 of digital television signal, and application processor comprises the main control chip ROCKCHIPS2706 that is connected with digital television chip TP3001B.Radio-frequency tuner (being the humorous chip ADMTV102 of digital television signal) comprises VHF/UHF binary channels radio frequency input frequency band, and this radio-frequency tuner is made up of low noise amplifier, radio frequency programmable gain amplifier, I/Q down-conversion mixer, low pass filter, base band variable gain amplifier, voltage controlled oscillator and decimal Fractional-N frequency phase-locked loop that bandwidth is adjustable.
Humorous chip ADMTV102 of digital television signal and digital television chip TP3001B form the CMMB module, the antenna receiving digital television signal of this CMMB module, undertaken inputing to digital television chip TP3001B after the I/Q modulation by the humorous chip ADMTV102 of digital television signal, behind the signal of digital television chip TP3001B demodulation input TS stream (transmission code stream) is delivered to main control chip ROCKCHIPS 2706 and handle the back broadcast.
For common multimedia player, user's acceptance is very high, particularly in the young consumer group, has almost become indispensable digital product.Add the CMMB function, that cost increases on common multimedia player basis and few, multimedia player has just become the multimedia center, arbitrarily film, TV play, the song liked of program request.Even rational consumer can preferentially select to have the multimedia player of CMMB function, we can say that the multimedia player of band Digital Television is the direction of multimedia player future development certainly like this, its market-oriented prospect is immeasurable.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; any modification of being done within every spirit of the present utility model and the principle, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (9)
1, a kind of portable media player with digital television function, it is characterized in that described portable media player comprises by the radio-frequency tuner of antenna receiving digital television signal, the base band demodulator that is connected with described radio-frequency tuner and the application processor that is connected with described base band demodulator.
2, portable media player according to claim 1 is characterized in that, described portable media player also comprises the audio decoder module that is connected with described application processor.
3, portable media player according to claim 1 is characterized in that, described portable media player also comprises the LCD screen that is connected with described application processor.
4, portable media player according to claim 1 is characterized in that, described portable media player also comprises the input unit that is connected with described application processor.
5, portable media player according to claim 1 is characterized in that, described portable media player also comprises the storage device that is connected with described application processor.
6, portable media player according to claim 5 is characterized in that, described storage device comprises flash memory, safe digital card and the Synchronous Dynamic Random Access Memory that is connected with described application processor respectively.
7, portable media player according to claim 1 is characterized in that, described portable media player also comprises the Serial Peripheral Interface (SPI) quickflashing that is connected with described base band demodulator.
8, portable media player according to claim 1, it is characterized in that, described radio-frequency tuner comprises VHF/UHF binary channels radio frequency input frequency band, and this radio-frequency tuner is made up of low noise amplifier, radio frequency programmable gain amplifier, I/Q down-conversion mixer, low pass filter, base band variable gain amplifier, voltage controlled oscillator and decimal Fractional-N frequency phase-locked loop that bandwidth is adjustable.
9, portable media player according to claim 1, it is characterized in that, described radio-frequency tuner comprises the humorous chip ADMTV102 of digital television signal, described base band demodulator comprises the digital television chip TP3001B that is connected with the humorous chip ADMTV102 of digital television signal, and described application processor comprises the main control chip ROCKCHIPS2706 that is connected with digital television chip TP3001B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201292302U CN201266976Y (en) | 2009-01-09 | 2009-01-09 | Portable multimedia player with digital television function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201292302U CN201266976Y (en) | 2009-01-09 | 2009-01-09 | Portable multimedia player with digital television function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266976Y true CN201266976Y (en) | 2009-07-01 |
Family
ID=40833347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201292302U Expired - Fee Related CN201266976Y (en) | 2009-01-09 | 2009-01-09 | Portable multimedia player with digital television function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266976Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572589A (en) * | 2010-12-28 | 2012-07-11 | 北京国微集成技术有限公司 | Media player and television signal processing accessory |
| CN104796746A (en) * | 2015-04-22 | 2015-07-22 | 郑州市辉邦电子科技有限公司 | CMMB (China mobile multimedia broadcasting) WIFI (wireless fidelity) digital multimedia player terminal |
-
2009
- 2009-01-09 CN CNU2009201292302U patent/CN201266976Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572589A (en) * | 2010-12-28 | 2012-07-11 | 北京国微集成技术有限公司 | Media player and television signal processing accessory |
| CN104796746A (en) * | 2015-04-22 | 2015-07-22 | 郑州市辉邦电子科技有限公司 | CMMB (China mobile multimedia broadcasting) WIFI (wireless fidelity) digital multimedia player terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20130109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |