CN201194408Y - Portable digital multimedia terminal - Google Patents
Portable digital multimedia terminal Download PDFInfo
- Publication number
- CN201194408Y CN201194408Y CNU2008200935269U CN200820093526U CN201194408Y CN 201194408 Y CN201194408 Y CN 201194408Y CN U2008200935269 U CNU2008200935269 U CN U2008200935269U CN 200820093526 U CN200820093526 U CN 200820093526U CN 201194408 Y CN201194408 Y CN 201194408Y
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- multimedia terminal
- portable digital
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- television
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Abstract
The utility model is suitable for the technical field of multimedia, providing a portable digital multimedia terminal; the terminal comprises a storing module; the terminal further comprises a main controller for decoding the multimedia data information in the storing module to generate audio and video signal; an audio module for outputting the audio signal generated by the main controller after decoding; and a television signal output module for converting the video signal generated by the main controller into CVBS signal and outputting. The portable digital multimedia terminal provided by the utility model is embedded with a television signal output module for outputting the stored picture, audio and video information to an analog television with large size screen to play to make the users obtain the enough entertainment experience and enlarge the program source of the television and change the semi-enclosed state of the analog television in certain degree when the digital television is popular.
Description
Technical field
The utility model belongs to multimedia technology field, relates in particular to a kind of portable digital multimedia terminal.
Background technology
Maturation along with the electronic multimedia produce market, people's amusement demand is from being satisfied with the dual enjoyment that hearing enjoying has risen to the audition combination merely, emerge in an endless stream in various portable digitals multimedia terminal, for example with the digital multimedia terminal of playing after picture and the audio-video document storage, the digital multimedia terminal that fixed point program receiving information fixed-point is play, mobile program receiving information moves the digital multimedia terminal of broadcast etc., portable multimedia terminal becomes very important amusement carrier in people's life just gradually, especially the digital multimedia terminal that mobile program receiving information moves broadcast has a good application prospect especially, it is support with the digital technology, the mode that receives wireless digital signal by ground receives and plays TV programme, mobile status can be in, on the vehicles of speed per hour below 120 kilometers, guarantee the stable and clear of digital signal, make spectators can be in mobile status TV reception easily, but above-mentioned portable multimedia broadcasting is put terminal and all is subject to factors such as screen size, can not make the user therefrom obtain sufficient amusement and enjoy.
The utility model content
The purpose of this utility model is to provide a kind of portable digital multimedia terminal, is intended to solve existing portable multimedia broadcasting and puts terminal restricted in factors such as screen sizes, can not make the user obtain the problem that sufficient amusement is enjoyed.
The utility model is achieved in that a kind of portable digital multimedia terminal, comprises a memory module, and described portable digital multimedia terminal also comprises:
Multimedia data information in the described memory module is carried out the master controller that decoding processing generates sound, vision signal;
The encode/decode audio signal that described master controller generates is handled the audio-frequency module that export the back; And
The TV signal output module that the vision signal that described master controller is generated is converted to the CVBS signal and exports.
The built-in TV signal output module in the portable digital multimedia terminal that the utility model provides, can export to large scale screen television set such as the picture of storage inside, audio/video information plays, make the user obtain recreation experience more fully, also widened the program resource of television set, at the universal day by day current semi-closed state that changes simulated television to a certain extent of Digital Television.
Description of drawings
Fig. 1 is the structure principle chart of the portable digital multimedia terminal that provides of the utility model;
Fig. 2 is the schematic diagram that the portable digital multimedia terminal that provides of the utility model receives the wireless digital TV-set signal;
Fig. 3 is the schematic diagram that the multimedia data information of the portable digital multimedia terminal that provides of the utility model is play by television set;
Fig. 4 is the portable digital multimedia terminal that provides of the utility model and the connection diagram in kind of television set;
Fig. 5 is the structure principle chart of the power module of the portable digital multimedia terminal that provides of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
In the utility model, by a built-in TV signal output module in the portable digital multimedia terminal, watch for the user outputing on the TV after picture, the audio frequency and video of storing in the portable digital multimedia terminal or the data message encoding process such as television program that receive in real time.
Fig. 1 shows the structural principle of the portable digital multimedia terminal that the utility model provides, and for convenience of description, wherein only shows the part relevant with the utility model.
Please refer to Fig. 1, the portable digital multimedia terminal comprises master controller 11 and the display module 12 that is connected with master controller 11, audio-frequency module 13, memory module 14, user's input interface 15, USB (UniversalSerialBus, USB) interface 16, power module 17, TV signal output module 18 and wireless digital TV-set signal receiving module 19, wireless digital TV-set signal receiving module 19 is used for opening ground digital television broadcast transmission standard (Terrestrial Digital Multimedia TV/HandleBroadcasting, DMB-TH) regional receiving digital television signal, power module 17 is connected with above-mentioned each module simultaneously, and the operating voltage that provides each module required is provided.Master controller 11 comprises that one has the circuit of bi-processor architecture, quickens with the support hardware video, has good audio frequency, video decoding capability, and for example can adopt model is the integrated circuit of TELECHIPS 7801, and dominant frequency can reach 192MHZ.Memory module 14 comprises synchronous DRAM (Synchronous Dynamic Random AccessMemory, SDRAM), flash memory (flash) and compact flash (the Compact Flash that is used to expand, CF) card or safe digital card (Secure Digital memory card, SD) interface, thus realize the storage of jumbo multimedia information data.15 of user's input interfaces can be button, touch-screen etc.The portable digital multimedia terminal that the utility model provides can be connected by equipment such as usb 16 and computers, carries out the data interaction of information such as audio frequency, video, picture.
The portable digital multimedia terminal that the utility model provides can be passed through display module 12, audio-frequency module 13 and play information such as the audio-video document of storage in the memory modules 14 and picture, play after also can handling the digital television programs information that wireless digital TV-set signal receiving module 19 receives, the portable digital multimedia terminal that Fig. 2 shows the utility model to be provided receives the principle of wireless digital TV-set signal, equally only shows the part relevant with the utility model.Wireless digital TV-set signal receiving module 19 comprises antenna 191, tuner 192, A/D converter 193 and demodulator 194, wherein the input of tuner 192 is connected with the input of antenna 191 with A/D converter 193 respectively with output, the output of A/D converter 193 is connected with the input of demodulator 194, the output of demodulator 194 then is connected to master controller 11, the carrier signal that is loaded with digital television signal that antenna 191 receives is by after tuner 192 frequency-conversion processing, carry out mould-number (Analog-Digital by A/D converter 193 successively again, A-D) conversion, and become the MPEG-TS data flow after demodulator 194 demodulation, after handling respectively through the hardware audio/video decoding unit of master controller 11 inside again, the vision signal that obtains exports display module 12 to, audio signal is then handled the back by earphone interface output through stereo coding/decoding device 131 encoding and decoding in the audio-frequency module 13, perhaps passes through stereo coding/decoding device 131 successively, export loud speaker to behind the audio frequency amplifier 132.
The portable digital multimedia terminal that the utility model provides can be with multimedia data informations such as the audio-video document of its storage inside, pictures, with and the digital television programs information that receives export television set to and carry out multimedia, the user appreciates multimedia programming by the television set with large scale screen can access recreation experience more fully, also widened the program resource of television set, Fig. 3 shows the principle that the multimedia data information of the portable digital multimedia terminal that the utility model provides is play by television set.After the TV output function of terminal is activated, the digital television programs information that multimedia data information in the memory module 14 or wireless digital TV-set signal receiving module 19 receive, after master controller 11 decoding processing, generate rgb video signal, export the television signal coding circuit 181 in the TV signal output module 18 to, wherein can to adopt model be that the integrated circuit of ADV7393 is realized to television signal coding circuit 181, television signal coding circuit 181 is converted to Composite Video Broadcast Signal (composite videobroadcast signal with rgb video signal, CVBS), and export the CVBS composite video signal that is converted to television set by the video port of TV signal output module 18, the multimedia terminal simultaneously the earphone interface by audio-frequency module 13 with audio signal output to television set, the portable digital multimedia terminal that Fig. 4 provides for the utility model and the connection diagram in kind of television set, wherein television set is connected with earphone interface 43 with the video port 42 of portable digital multimedia terminal by an audio frequency and video connecting line 41, the touch-screen 44 of portable digital multimedia terminal adopts capacitive touch screen, induced current triggers when contacting with human body, after button 45 starts, system carries out initialization, load on the LCD Panel and generate main interface, the user can select to open or switch to the function corresponding menu by touch-screen 44, as digital TV, TV output, multimedia, Entertainment, multiple functions such as system is provided with.When this terminal is connected with personal computer by its USB interface, can carry out exchanges data and obtain more Internet resources, can also carry out system software upgrading simultaneously.
Fig. 5 shows the structural principle of power module 17 in the utility model, comprise electric power management circuit 171, rechargeable battery 172, charge management circuit 173, power supply adaptor interface 174 and a plurality of DC-to-DC (Direct Current-Direct Current, DC-DC) electric pressure converter, wherein electric power management circuit 171 is connected with master controller 11, and the DC-DC electric pressure converter then is used for the power supply of rechargeable battery 172 or external power source is converted to the needed operating voltage of each module in the terminal.When electric power management circuit 171 detects external power source and powers to system by power supply adaptor interface 174 or usb 16, to switch to externally fed by rechargeable battery 172 power supplies automatically, controlling 173 pairs of rechargeable batteries 172 of charge management circuit simultaneously charges, when having externally fed, can directly not power to system, thereby have better portable performance by rechargeable battery 172.
In sum, the built-in TV signal output module in the portable digital multimedia terminal that the utility model provides, the digital television programs information that picture, audio/video information and this portable digital multimedia terminal of storage inside can be received exports the television set with large scale screen to and plays, make the user obtain recreation experience more fully, also widened the program resource of television set, at the universal day by day current semi-closed state that changes simulated television to a certain extent of Digital Television; And the employing of the sound of bi-processor architecture, video decode circuit also helps the acceleration of support hardware video in the master controller, improves system audio, video decoding capability.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. a portable digital multimedia terminal comprises a memory module, it is characterized in that, described portable digital multimedia terminal also comprises:
Multimedia data information in the described memory module is carried out the master controller that decoding processing generates sound, vision signal;
The encode/decode audio signal that described master controller generates is handled the audio-frequency module that export the back; And
The TV signal output module that the vision signal that described master controller is generated is converted to the CVBS signal and exports.
2. portable digital as claimed in claim 1 multimedia terminal, it is characterized in that, described portable digital multimedia terminal also comprises a wireless digital TV-set signal receiving module that is connected with described master controller, and described wireless digital TV-set signal receiving module is further:
Antenna;
The carrier signal that is loaded with digital television signal that described antenna is received is carried out the tuner exported after the frequency-conversion processing;
The A/D converter that the signal that described tuner is exported carries out analog-to-digital conversion; And
To exporting the demodulator of described master controller after the demodulation as a result after the described A/D converter conversion to.
3. portable digital as claimed in claim 1 multimedia terminal is characterized in that, described master controller comprises the circuit that multimedia data information is carried out sound, video decode processing, and described circuit has bi-processor architecture.
4. portable digital as claimed in claim 1 multimedia terminal is characterized in that, described audio-frequency module comprises:
The audio signal that described master controller generates is compiled the stereo coding/decoding device that carries out decoding processing; And
The earphone interface of the audio signal output that will handle through described stereo coding/decoding device.
5. portable digital as claimed in claim 4 multimedia terminal is characterized in that, described TV signal output module comprises:
One vision signal with described master controller generation is converted to the television signal coding circuit of CVBS signal; And
Video port with the output of the coding result of described television signal coding circuit.
6. portable digital as claimed in claim 5 multimedia terminal is characterized in that, described portable digital multimedia terminal further comprises:
The audio frequency and video connecting line that described earphone interface and described video port are connected with television set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200935269U CN201194408Y (en) | 2008-04-22 | 2008-04-22 | Portable digital multimedia terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200935269U CN201194408Y (en) | 2008-04-22 | 2008-04-22 | Portable digital multimedia terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201194408Y true CN201194408Y (en) | 2009-02-11 |
Family
ID=40393940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200935269U Expired - Fee Related CN201194408Y (en) | 2008-04-22 | 2008-04-22 | Portable digital multimedia terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201194408Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234628A (en) * | 2013-04-03 | 2013-08-07 | 上海龙创节能系统股份有限公司 | Wireless communication based desktop illuminometer and intelligent control system |
| CN103561309A (en) * | 2013-08-20 | 2014-02-05 | 北京市农林科学院 | 3G mobile Internet streaming medium video interactive platform |
| CN105797277A (en) * | 2014-12-31 | 2016-07-27 | 禾馥科技股份有限公司 | Phototherapy skin beauty device |
-
2008
- 2008-04-22 CN CNU2008200935269U patent/CN201194408Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234628A (en) * | 2013-04-03 | 2013-08-07 | 上海龙创节能系统股份有限公司 | Wireless communication based desktop illuminometer and intelligent control system |
| CN103561309A (en) * | 2013-08-20 | 2014-02-05 | 北京市农林科学院 | 3G mobile Internet streaming medium video interactive platform |
| CN105797277A (en) * | 2014-12-31 | 2016-07-27 | 禾馥科技股份有限公司 | Phototherapy skin beauty device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20160422 |