CN204087189U - Multimode computer video output unit - Google Patents
Multimode computer video output unit Download PDFInfo
- Publication number
- CN204087189U CN204087189U CN201420579084.4U CN201420579084U CN204087189U CN 204087189 U CN204087189 U CN 204087189U CN 201420579084 U CN201420579084 U CN 201420579084U CN 204087189 U CN204087189 U CN 204087189U
- Authority
- CN
- China
- Prior art keywords
- signal
- hdmi
- circuit
- computer
- audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model provides a kind of multimode computer video output unit, belong to video signal transmission field, its core is that arranging digital signal decoding circuit can transfer computer video signal to HDMI video signal, audio conversion circuit can transfer computer audio signal to I2S sound signal, and HDMI video signal and I2S sound signal synthesized HDMI media signal by HDMI transtation mission circuit to export, thus make desk-top computer not have HDMI still HD video can be transferred on the equipment such as TV to play; In addition, in order to increase range of application, can also select to set up VGA output circuit, with the function making the utility model can have outputting VGA vision signal simultaneously.
Description
Technical field
The utility model relates to a kind of output unit, particularly a kind of multimode computer video output unit.
Background technology
Along with popularizing of computing machine, using computing machine to play HD video has been no longer difficult matter, but the screen size of computing machine is limited, so a lot of user likes the HD video in computing machine to transfer on the giant-screen equipment such as TV to play, wherein the most frequently used mode uses HDMI transmission line exactly; But general desk-top computer does not possess HDMI, thus make HD video transfer to televise to become difficult matter.
In addition, under the working situations such as negotiation, user likes the information in computing machine to be transferred on giant-screen by USB interface to demonstrate, to strengthen the appeal of demonstration; But computing machine only has a USB interface usually, namely all the elements can only be demonstrated on same screen, when if desired demonstrating multiple different page simultaneously, switch back and forth between each page, each page is reduced, so that Display on the same screen, but which kind of method all can affect the effect of demonstration, for user brings great puzzlement.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of multimode computer video output unit, and this output unit can solve the problem that desk-top computer is difficult to HD video to transfer to the device plays such as TV.
For solving the problem, the technical scheme that the utility model adopts is as follows:
A kind of multimode computer video output unit,
Comprise USB input port, audio interface, digital signal decoding circuit, audio conversion circuit and HDMI transtation mission circuit,
This USB input port is used for the computer video signal of reception to deliver to digital signal decoding circuit;
This digital signal decoding circuit is used for transferring computer video signal to HDMI video signal, and HDMI video signal is delivered to HDMI transtation mission circuit;
This audio interface is used for the computer audio signal of reception to deliver to audio conversion circuit;
This audio conversion circuit is used for transferring the computer audio signal of reception to I2S sound signal, and I2S sound signal is delivered to HDMI transtation mission circuit;
This HDMI transtation mission circuit is used for HDMI video signal and I2S sound signal being synthesized HDMI media signal and exports.
Preferably, also comprise VGA output circuit, VGA vision signal also for transferring computer video signal to VGA vision signal, and is delivered to VGA output circuit and is exported by described digital signal decoding circuit.
Preferably, described VGA output circuit is that D/A changes VGA output circuit.
Preferably, described audio conversion circuit is A/D audio conversion circuit.
Compared to existing technology, the beneficial effects of the utility model are:
Digital signal decoding circuit can transfer computer video signal to HDMI video signal, audio conversion circuit can transfer computer audio signal to I2S sound signal, and HDMI video signal and I2S sound signal synthesized HDMI media signal by HDMI transtation mission circuit to export, thus make desk-top computer not have HDMI still HD video can be transferred on the equipment such as TV to play; In addition, in order to increase range of application, so set up VGA output circuit in a preferred approach, thus make the utility model can also have the function of outputting VGA vision signal, this USB interface representing computing machine can be expanded by the utility model, so after use the utility model, just can realize multihead display by multiple USB interface simultaneously, bring great convenience for user carries out multi-screen demonstration.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference numeral is as follows:
1, USB input port; 2, audio interface; 3, digital signal decoding circuit; 4, A/D audio conversion circuit; 5, HDMI transtation mission circuit; 6, D/A changes VGA output circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, multimode computer video output unit described in the utility model comprises USB input port 1, audio interface 2, digital signal decoding circuit 3, A/D audio conversion circuit 4 and HDMI transtation mission circuit 5; This USB input port 1 is for delivering to digital signal decoding circuit 3 by the computer video signal of reception; HDMI video signal for transferring computer video signal to HDMI video signal, and is delivered to HDMI transtation mission circuit 5 by this digital signal decoding circuit 3; This audio interface 2 is for delivering to A/D audio conversion circuit 4 by the computer audio signal of reception; I2S sound signal for transferring the computer audio signal of reception to I2S sound signal, and is delivered to HDMI transtation mission circuit 5 by this A/D audio conversion circuit 4; This HDMI transtation mission circuit 5 exports for HDMI video signal and I2S sound signal being synthesized HDMI media signal.
Obviously, digital signal decoding circuit 3 can transfer computer video signal to HDMI video signal, A/D audio conversion circuit 4 can transfer computer audio signal to I2S sound signal, and HDMI video signal and I2S sound signal synthesized HDMI media signal by HDMI transtation mission circuit 5 to export, thus make desk-top computer not have HDMI still HD video can be transferred on the equipment such as TV to play.
In addition, in order to increase range of application, the utility model has also been set up A/D and has been changed VGA output circuit 6, described digital signal decoding circuit 3 is also for transferring computer video signal to VGA vision signal, and VGA vision signal is delivered to D/A and change VGA output circuit 6 and export, this USB interface representing computing machine can be expanded by the utility model, so after use the utility model, just can realize multihead display by multiple USB interface simultaneously, bring great convenience for user carries out multi-screen demonstration.
Above-mentioned embodiment is only preferred implementation of the present utility model; can not limit the scope of the utility model protection with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present utility model all belong to the utility model scope required for protection.
Claims (4)
1. a multimode computer video output unit, is characterized in that:
Comprise USB input port, audio interface, digital signal decoding circuit, audio conversion circuit and HDMI transtation mission circuit,
This USB input port is used for the computer video signal of reception to deliver to digital signal decoding circuit;
This digital signal decoding circuit is used for transferring computer video signal to HDMI video signal, and HDMI video signal is delivered to HDMI transtation mission circuit;
This audio interface is used for the computer audio signal of reception to deliver to audio conversion circuit;
This audio conversion circuit is used for transferring the computer audio signal of reception to I2S sound signal, and I2S sound signal is delivered to HDMI transtation mission circuit;
This HDMI transtation mission circuit is used for HDMI video signal and I2S sound signal being synthesized HDMI media signal and exports.
2. multimode computer video output unit according to claim 1, it is characterized in that: also comprise VGA output circuit, VGA vision signal also for transferring computer video signal to VGA vision signal, and is delivered to VGA output circuit and is exported by described digital signal decoding circuit.
3. multimode computer video output unit according to claim 2, is characterized in that: described VGA output circuit is that D/A changes VGA output circuit.
4. the multimode computer video output unit according to any one of claims 1 to 3, is characterized in that: described audio conversion circuit is A/D audio conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579084.4U CN204087189U (en) | 2014-09-30 | 2014-09-30 | Multimode computer video output unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420579084.4U CN204087189U (en) | 2014-09-30 | 2014-09-30 | Multimode computer video output unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204087189U true CN204087189U (en) | 2015-01-07 |
Family
ID=52179872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420579084.4U Expired - Fee Related CN204087189U (en) | 2014-09-30 | 2014-09-30 | Multimode computer video output unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204087189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106844255A (en) * | 2017-01-23 | 2017-06-13 | 武汉大学 | A kind of I2The device and method that S compatible audio signals mutually turn with multichannel time multiplexing signal |
| CN108055576A (en) * | 2017-12-27 | 2018-05-18 | 安徽科创智慧知识产权服务有限公司 | Suitable for separating the device of vision signal |
| CN109254753A (en) * | 2018-09-27 | 2019-01-22 | 京东方科技集团股份有限公司 | Audio signal interface circuit and its device, control method, playback equipment |
-
2014
- 2014-09-30 CN CN201420579084.4U patent/CN204087189U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106844255A (en) * | 2017-01-23 | 2017-06-13 | 武汉大学 | A kind of I2The device and method that S compatible audio signals mutually turn with multichannel time multiplexing signal |
| CN108055576A (en) * | 2017-12-27 | 2018-05-18 | 安徽科创智慧知识产权服务有限公司 | Suitable for separating the device of vision signal |
| CN109254753A (en) * | 2018-09-27 | 2019-01-22 | 京东方科技集团股份有限公司 | Audio signal interface circuit and its device, control method, playback equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203466402U (en) | Multifunctional USB expander | |
| CN105120184A (en) | High-definition video seamless matrix based on FPGA (field programmable gate array) | |
| CN204087189U (en) | Multimode computer video output unit | |
| CN103204114A (en) | Multisystem vehicle-mounted equipment and use method thereof | |
| CN201655249U (en) | Integrated audio/video controller for LED display | |
| CN203444074U (en) | Automatic detection device for main control board of 4K2K product | |
| CN203015039U (en) | Wireless audio-and-video signal transmission device | |
| CN203151655U (en) | Projector capable of providing power for intelligent television stick through HDMI interface | |
| CN102810054B (en) | The control method of display device and display device | |
| CN205408015U (en) | Many to one video interface converter | |
| CN205081875U (en) | HDMI signal changes VGA signal converter | |
| CN201045695Y (en) | Signal processing circuit for VGA interface and television set equipped with the same | |
| CN204348113U (en) | For the speech sound teaching apparatus of archaic Chinese teaching | |
| CN204069165U (en) | High-definition digital signal local network transport and expanding unit | |
| CN204178356U (en) | A kind of wired external moving screen | |
| CN202486740U (en) | Multimedia wireless touch control device | |
| CN202373277U (en) | Device for double channel video output through utilization of uniprocessor | |
| CN205071009U (en) | Campus broadcasting system | |
| CN202261603U (en) | Novel multi-interface projector | |
| CN202541454U (en) | Multi-system on-board equipment | |
| CN203552122U (en) | Internet-based network computer | |
| CN205303886U (en) | Fine definition multi -media interface converter | |
| CN205754598U (en) | High definition mixed insertion matrix switcher | |
| CN203851248U (en) | Network set-top box with functions of loudspeaker and video deconcentrator | |
| CN203164869U (en) | Multifunctional keyboard |
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: 20150107 |